CN202854664U - Electronic notebook with pressure sensitive film - Google Patents

Electronic notebook with pressure sensitive film Download PDF

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Publication number
CN202854664U
CN202854664U CN 201220559092 CN201220559092U CN202854664U CN 202854664 U CN202854664 U CN 202854664U CN 201220559092 CN201220559092 CN 201220559092 CN 201220559092 U CN201220559092 U CN 201220559092U CN 202854664 U CN202854664 U CN 202854664U
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China
Prior art keywords
pressure sensitive
module
sensitive film
electronic notebook
control module
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Expired - Fee Related
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CN 201220559092
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Chinese (zh)
Inventor
乔东海
张骥
倪燕华
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Suzhou University
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Suzhou University
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Abstract

The utility model discloses an electronic notebook with a pressure sensitive film. The electronic notebook with the pressure sensitive film comprises an input module and a control module. The electronic notebook with the pressure sensitive film is characterized in that the input module is mainly formed by a hard board and the pressure sensitive film compounded on the hard board, an operable area of the pressure sensitive film is no less than B5, electrical connection is formed between an output signal end of the pressure sensitive film and an input port of the control module, and the control module is provided with a control panel which is provided with a human-computer interaction interface. The electronic notebook with the pressure sensitive film has no special demands for papers and pens and is capable of adapting to writing and using habits of normal people, beneficial for keeping thinking fluency of a user, capable of improving classroom learning efficiency and meeting work efficiency and satisfying demands of an information age, and beneficial for communication of people, transmission and storage.

Description

A kind of electronic notebook with the pressure sensitive membrane
Technical field
The utility model relates to a kind of portable electric appts that possesses writing function, is specifically related to a kind of electronic notebook with pressure sensitive film.
Background technology
Along with the progress of life and the arrival of information age, the bulk information in study, work and the life need to be converted to electronic information, improves quality and the efficient of live and work with this.Although the universal quickly and easily recorded information of notebook computer and scanner, its volume is large, Heavy Weight, is difficult for carrying, and people begin to manufacture light portative electronic notebook.Present electronic notebook mainly is divided into three kinds, and is a kind of with liquid crystal display, will show at liquid crystal after the handwriting input, and save as electronic information; Another kind mainly by ultrasonic and ultrared reception and emission induction and distinctive software thereof, is processed signal and location, thereby and be combined recorded information with computing machine, personal digital treating apparatus; Also have a kind of mainly by special electronic pen (built-in receiving element), when writing and drawing, receiving element can capture electronic pen and move the relative position that produces and change, and store recording.More than three kinds of modes certain limitation is arranged, more complicated, cost is higher, on using certain limitation is arranged also.
People often need to arbitrarily write on paper or draw in the investigation process, and playing the effect of developing thinking, and usually the variation of jumping characteristic can occur people's thinking, and when thinking changed, the way of routine was to change a piece of paper to restart.The electronic notebook that adopts special pens or handwriting screen to input does not meet people's use habit, can hinder people's thinking, and effect is discussed in impact.And the at any time property of studying carefully requires that electronic recording should have that device is simple, low-power consumption, characteristics cheaply.Therefore, developing does not a kind ofly all have the electronic notebook of specific (special) requirements to the paper write, pen, in time recording important information in occasions such as classroom notes, meeting discussions, and the efficient that improves study, work and live, important in inhibiting.
Summary of the invention
Goal of the invention of the present utility model provides a kind of simple in structure, electronic notebook of being easy to carry, the paper write, pen all not being had specific (special) requirements.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of electronic notebook with the pressure sensitive membrane, comprise load module and control module, described load module mainly is made of hardboard and the pressure sensitive film that is compounded on the hardboard, but the operating area of described pressure sensitive film is not less than B5; Forming electricity between the output signal end of described pressure sensitive film and the input port of described control module is connected; Be provided with control panel in the described control module, control panel is provided with human-computer interaction interface.
During use, can place paper at pressure sensitive film, when the paper at notepad writes, preserve simultaneously written contents by the microprocessor in pressure sensitive film and the control module, hand-written notes are saved as e-file; Also can directly write at pressure sensitive film, only keep e-file.Hardboard can be plastics or sheet metal, and it is following when protecting pressure sensitive film and guaranteeing to adopt paper to write with this that hardboard is located at pressure sensitive film, the accuracy of transducing signal.
In the technique scheme, described control module is positioned at a box body, and the upper surface of box body consists of control panel, and described box body is connected the location with an end of load module.
Further technical scheme is provided with removable paper at the upper surface of described pressure sensitive film.
Preferred technical scheme for being rotationally connected, and makes the clamp structure that is configured for the clamping paper between box body lower surface and load module upper surface through elastic component between described box body and load module.
Further technical scheme comprises microphone and audio processing modules in the described control module, and microphone is located at the control panel place, and the output of microphone links to each other with audio processing modules, and the output of audio processing modules is connected with the input port of control module.
In the technique scheme, be provided with central processing module, clock module, memory module, keyboard input module, usb data interface module and power management module in the described control module.Human-computer interaction interface can comprise microphone, button, pilot lamp, USB interface.In control module, the presser sensor film module of the signal that is specifically designed to the responsive mould of processing pressure can be set, be used for carrying out the view data conversion, central processing module links to each other with the presser sensor film module and receives and store the good image data of conversion with this.
Four buttons can be set, and one of them is as power switch key, and other three button links to each other with central processing module through keyboard input module as the feature operation button, with the response button operation.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model is with pressure sensitive film and the compound formation input media of hardboard, can place paper at pressure sensitive film, write or paint with conventional pen, by pressure sensitive film information being passed to control module processes and stores, can adapt to writing and use habit of ordinary people, be conducive to the user and keep thinking smooth;
2. after increasing audio processing modules in the utility model, can record simultaneously the sound of discussion, in order to form complete technical documentation or lively situation of reappearing the scene, be conducive to the interchange of the information of carrying out;
3. control module is arranged in the box body of input media one end, and complete machine is similar to a Writing underlay plate, and is simple in structure, easy to use.
4. adopt electronic notebook of the present utility model, can improve the efficient of classroom learning, meeting work, meet the requirement of information age, be conducive to people's interchange, transmission and storage.
Description of drawings
Fig. 1 is the product appearance structural representation of the utility model embodiment and a kind of synoptic diagram of ways of writing;
Fig. 2 is the synoptic diagram of another kind of ways of writing;
Fig. 3 is the structural representation of product among the embodiment;
Fig. 4 is the principle of work system diagram;
Fig. 5 is the pressure sensitive film module circuit diagram;
Fig. 6 is the system flowchart of audio processing modules;
Fig. 7 is the program flow diagram of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to shown in Figure 1, the contour structures synoptic diagram for present embodiment mainly comprises: paper 100, pressure sensitive film 200, hardboard 300, control panel 400, human-computer interaction interface 500.Be provided with between pressure sensitive film 200 and the control panel 400 clip with this placement that makes things convenient for paper with fixing.
See also shown in Figure 1, this is a kind of synoptic diagram of ways of writing, the paper 100 that wherein is used for writing is positioned on the pressure sensitive film 200, by a clip that paper 100 is fixing between pressure sensitive film 200 and the control panel 400, when the paper at notepad writes, preserve simultaneously written contents by pressure sensitive film and microprocessor, hand-written notes are saved as e-file.To write the pen with paper without specific (special) requirements.
See also shown in Figure 2ly, this is the synoptic diagram of another kind of ways of writing, and not needing paper 100 is without the master mode notebook, directly writes at pressure sensitive film 200, only keeps e-file.Can select erasable oil pen directly to write at pressure sensitive film 200, be stored as e-file after, wipe and to get final product (wipe and press the CLEAR key after finishing, the buffer area erasing of information that erasing move is just now generated) with cloth or blackboard eraser.
See also shown in Figure 3, be a kind of structural representation of present embodiment: human-computer interaction interface 500 is provided with four buttons in the present embodiment, wherein be provided with three prompt operation buttons, later stage can increase voluntarily or reduce according to actual conditions: (whether the control microphone needs recording to button 521 for the recording switch key, be whether the user needs the isochronous audio recording file), button 522 is SAVE key (content of having write is saved to the storage unit module), and button 523 is CLEAR key (clear operation of carrying out when the content that does not need to have write is preserved); Also be provided with button 524, be on ﹠ off switch (control system electrifying startup or outage are closed).Human-computer interaction interface 500 is provided with a power light 530, be used for reactive system electric weight reminding user whether need the charging, also be the indicator signal whether system starts shooting.The power light 530 right-hand microphones 510 that are provided with are used for recording and realize voice synchronous function of the present utility model.USB interface 540 is located at the side of control panel 400, is used for communicating by letter with host computer and charging.The inside of control panel 400 also is provided with main control board 410, is each control module and central processing module.The inside of control panel 400 is provided with power supply 420, is rechargeable battery.
See also shown in Figure 4, this is the utility model principle of work system diagram, mainly comprise pressure sensitive film 200, power supply 420, microphone 510, button 520, pilot lamp 530, USB interface 540 and main control board 410, wherein main control board 410 comprises central processing module 411, clock module 412, memory module 413, presser sensor film module 414, audio processing modules 415, keyboard input module 416, supply voltage feedback module 417, usb data interface module 418, power management module 419.
Described pressure sensitive film 200 can be resistance-type pressure sensitive film or capacitive pressure sensitive membrane.
Pressure sensitive film 200 embodiments one: select the resistance-type pressure sensitive film, described resistance-type pressure sensitive film utilizes pressure sensitive to control, and mainly is divided into four lines and five lines two kinds.The basic structure of its pressure sensitive film generally includes three parts: two-layer transparent resistive conductor layer, separation layer, the electrode between the two-layer conductor.Resistive conductor layer is selected resistive material, be coated on the substrate such as indium tin oxide (ITO) and consist of, the upper strata substrate can be with outside surface cure process, smooth anti-friction plastic layer (being the superficial layer of pressure sensitive film), underlying substrate useable glass or duroplasts dull and stereotyped (namely as basic unit).Separation layer is viscosity iknsulating liquid material, such as mylar.Electrode is selected the fabulous material of electric conductivity, such as silver powder China ink, Copper Foil.The principle of work of pressure sensitive film: the resistive film of every one deck is a workplace of pressure sensitive film, be respectively X workplace and Y workplace, (the X workplace is transverse ends at the two ends of each workplace, the Y workplace is vertical two ends) conductive electrode respectively arranged, the pair of electrodes that is called this workplace, being called X " electrode pair " is X+, X-, and Y " electrode pair " is Y+, Y-.Controller by electronic memo applies a voltage of determining at X " electrode pair " again, and on the Y " electrode pair " not during making alive, the workplace at X " electrode pair " place will form evenly continuous parallel electric field.When with finger or style of writing paper 100 or pressure sensitive film superficial layer, the voltage at contact place has reflected the position of contact at the X workplace, with this voltage by Y+(or Y-) electrode guides to the pressure sensitive film controller, and changes through A/D, just can obtain the digital quantity of contact voltage, i.e. the X coordinate.In like manner, applying voltage at Y " electrode pair ", take X+(or X-) electrode is potential electrode, just can obtain the Y coordinate.When with finger or style of writing and paper 100 or pressure sensitive film superficial layer, two-layer transparent resistive conductor layer links together at the place of pressing, electric current will change by the voltage of conducting film, read by circuit for detecting, this voltage is relevant with the position of touch point, according to the voltage that reads from the horizontal and vertical direction, can be scaled X, the Y coordinate position at place, touch point, and then can get access to finger or an actual coordinate value of pressing on the pressure sensitive film surface, both can follow the trail of notes and carry out Electronic saving.
Pressure sensitive film 200 embodiments two: select the capacitive pressure sensitive membrane, the capacitive pressure sensitive membrane is substantially identical with the basic structure of resistance-type pressure sensitive film, and just its resistive conductor layer is selected the capacitive material.The principle of work of capacitive pressure sensitive membrane and resistance-type pressure sensitive film is also basic identical when namely using finger or style of writing and paper 100 or pressure sensitive film superficial layer, the electric capacity of this point changes, cause the voltage of this point to change, read by circuit for detecting, be scaled the actual coordinate value of this point.
Described central processing module 411 embodiments: can be 16 single-chip microcomputer MSP430 series in industrial widespread use; Can be for current popular embedded 32 single-chip microcomputer series, such as ARM7, ARM9, STM32 etc.; Also can adopt high speed, low-power consumption, jumbo FPGA(field programmable gate array) chip realizes central processing module 411 all functions, such as the Cyclone series of altera corp, the Spartan series of Xilinx company, the ProASIC series of Actel company etc.; Also can be realized by the single-chip microcomputer of the high performance-price ratio with peculiar audio frequency processing capacity, such as following 16 the single-chip microcomputer SPCE061A that the Ling Yang science and technology research and development of arriving produce etc. that discuss for example.The scheme that other modules can adapt with it according to different central processing module enforcement.
Described real-time clock module 412 embodiments: selecting according to the particular hardware condition that central processing module 411 has, can be the special clock chip, also peripheral active and passive crystal oscillator.
Described storage unit module 413 embodiments: described storage unit does not refer to that on-chip memory that central processing module 411 carries is (such as ram in slice, as buffer area), and refer to that sheet that power down is not lost deposits the unit of data outward, can be realized by FLASH, SRAM, SDRAM, and host computer can be read and write storer with after USB interface is connected.
See also shown in Figure 5ly, be a kind of implementing circuit figure of presser sensor film module 414, described presser sensor film module 414 is the interface circuit of pressure sensitive film and central processing module, and namely the A/D change-over circuit is converted to image data with coordinate signal.Concrete a kind of embodiment is: take 4 wire resistance type pressure sensitive films as example, having provided presser sensor film module 200 is the interface circuit of resistance-type pressure sensitive film and MCU.4 wire resistance type pressure sensitive films are made of two transparent resistance films, and resistance is linear distribution at directions X and Y direction, and 4 lines are connected to respectively X+, Y+, X-, the Y-mouth line of ADS7843.When screen was touched, two conductive layers contacted in the touch point, and resistance changes.ADS7843 is a 12 bit A/D converters with the SPI interface that aim at the pressure sensitive film design, and inside contains simulant electronic switch and successive comparison type AD converter.When the AD value of the Y-direction of will sampling, by Y+, Y-end is applied voltage, X+ is sent into the AD value that AD converter obtains Y-direction; In like manner can get the AD value of directions X.And these conversions are finished to ADS7843 transmission order by the SPI mode by MCU.It is the external clock input that the DCLK of ADS7843, CS, DIN, DOUT, BUSY are connected to the SPI interface of MCU: DCLK; CS is chip selection signal, and is effectively low; DIN is the serial data input end; DOUT is the serial data output terminal; BUSY is busy signal.Single-chip microcomputer sends order by the SPI mode to touching chip, can read the directions X of current point and 12 AD values of Y-direction.This value becomes linear approximate relationship with style of writing point position, so the X that reads of single-chip microcomputer and Y value just can describe the position of style of writing point on screen, and the value that single-chip microcomputer will collect is saved to buffer area (available ram in slice is as buffer area).
See also shown in Figure 6ly, be the system flowchart of audio processing modules 415.Described audio processing modules 415 links to each other with microphone 510, and namely to sound signal amplification, A/D conversion, coding and format conversion, codified converts MP3 or WAV form to, then preserves.Specific embodiments is as follows:
Audio processing modules 415 embodiments one: can use the microprocessor with peculiar audio frequency processing capacity, take 16 single-chip microcomputer SPCE061A of Ling Yang as example, be integrated in to its each functional parts moduleization in the chip, the inner bus structure that adopt, reduce the line between each functional part, improved reliability and antijamming capability.SPCE061A can the very convenient input function of realizing neatly voice for the utility model, and this chip has the ADC of 8 tunnel 10 precision, and wherein one the tunnel is the audio conversion passage, and is built-in with the automatic gain agc circuit.This provides easily hardware condition for realizing the voice typing.
Audio processing modules 415 embodiments two: use special-purpose audio processing chip, describe as an example of chip D6571E11 example, D6571E11 is a voice signal process chip.Though D6571E1l is a single-chip digital signal processor just, comprised the interface circuit of all and controller, flash memory, coder CODEC.D6571E11 is controlled by some simple instructions by control system fully for the utility model, thereby realizes its systemic-function, such as recording, storage etc.Mainly be divided into 4 major parts: speech data collection module, data encoding compression module, Data Transmission Controlling module, data memory module.
Described keyboard input module 416 embodiments: keyboard input module 416 links to each other with button 40, if central processing module 411 resource-constraineds, keyboard input module 416 can be designed to incorporate into string and out be central processing module 411 saving resources, if central processing module 411 resources are enough, then keyboard input module 416 is just for incorporating into and going out, be that button directly links to each other with central processing module 411, central processing module 411 is carried out corresponding function according to the signal that button produces.
Described supply voltage feedback module 417 embodiments: real is the A/D conversion circuit, power management module 419 is ceaselessly gathered voltage, the value that to adopt again is transferred to central processing module 411 and processes, 411 pairs of data that receive of central processing module are carried out formula and are transformed into original voltage value, then compare with reference voltage, if be higher than reference voltage, the red indication of central processing module 411 control led, if be lower than reference voltage, the yellow indication of central processing module 411 control led is with the state of this pilot lamp display power supply voltage.
Described usb data interface module 418 embodiments: can realize by special-purpose USB interface chip, USB turn serial port chip commonly used CH341, PL2303HX etc. are arranged; It also can be the module that central processing module 411 carries, such as single-chip microcomputer STM32F103ZET6 self-carried USB SLAVE interface, when this device is connected with host computer by USB device, system detects USB device, finish corresponding initial work, can from Nand Flash, read the .txt file; Can also build realization by serial port circuit.
Described power supply 420 embodiments: rechargeable battery for lithium battery provides, can be lithium ion battery or lithium polymer battery; Also can be Ni-MH battery, nickel-cadmium battery, plumbic acid maintenance-free battery etc.Power management module 419 links to each other to come the charging for system with USB interface 540.
Described microphone 510 embodiments: can be single microphone or use microphone array technology tracing and positioning.Microphone array refers to arrange at a certain distance one group of microphone of placement, by sound wave arrive at each microphone in the array the interaction of the small time difference, microphone array can obtain than single microphone directive property better.By the overall treatment to all microphone signals, microphone array can be combined into desired highly directive microphone, forms the directional property that is called as " wave beam ".The wave beam of microphone array can via special circuit or programmed algorithm software control, make its sensing Sounnd source direction and strengthen the audio collection effect.Directional wave beam after array algorithm is processed forms technology can form a taper narrow beam accurately, and the sound of only accepting the speaker suppresses noise and the interference in the environment simultaneously.By algorithm control, microphone array be listed in can beam position is current after the position that searches the talker the talker.This extremely strong Intelligent finger of microphone array can significantly reduce the impact of surrounding enviroment noise and echo to sexual function.
See also shown in Figure 7, be program flow diagram of the present utility model, Software for Design module 600 mainly comprises 5 modules: scanning recording switch key module 610, scanning SAVE key module 620, scanning CLEAR key module 630, scanning presser sensor film module 640, scanning power supply Voltage Feedback module 650.After system boot powers on:
(1) execution module 610, begin to scan recording switch key 521, if scan the button operation signal, then execution module 611, and namely central processing module 411 response audio processing modules 414 receive and storage conversion voice data well; Then do not skip to step (2) if do not scan the button operation signal.
(2) execution module 620, if scan the button operation signal of SAVE key 522, then execution module 621, and namely central processing module 411 is saved to the outer memory block 413 of sheet with the buffer area data; Then do not skip to step (3) if do not scan the button operation signal.
(3) execution module 630, if scan the button operation signal of CLEAR key 523, then execution module 631, and namely central processing module 411 empties the buffer area data; Then do not skip to step (4) if do not scan the button operation signal.
(4) execution module 640, if scan presser sensor film module 414 pumping signal arranged, and then execution module 641, and namely central processing module 411 receives and will change good data and is stored to buffer area; If do not scan presser sensor film module 414 pumping signal is not arranged, then skip to step (5).
(5) execution module 650, if scan the value of feedback of supply voltage feedback module 416 greater than reference voltage (reference voltage is for guaranteeing the minimum voltage value of system works), then execution module 651, and namely then the red indication of central processing module 411 control pilot lamp skips to step (1); If scan the value of feedback of supply voltage feedback module 416 less than reference voltage, then execution module 652, and namely then the yellow indication of central processing module 411 control pilot lamp skips to step (1).

Claims (6)

1. the electronic notebook with the pressure sensitive membrane comprises load module and control module, it is characterized in that: described load module mainly is made of hardboard and the pressure sensitive film that is compounded on the hardboard, but the operating area of described pressure sensitive film is not less than B5; Forming electricity between the output signal end of described pressure sensitive film and the input port of described control module is connected; Be provided with control panel in the described control module, control panel is provided with human-computer interaction interface.
2. the electronic notebook with the pressure sensitive membrane according to claim 1, it is characterized in that: described control module is positioned at a box body, and the upper surface of box body consists of control panel, and described box body is connected the location with an end of load module.
3. the electronic notebook with the pressure sensitive membrane according to claim 1, it is characterized in that: the upper surface at described pressure sensitive film is provided with removable paper.
4. the electronic notebook with the pressure sensitive membrane according to claim 2 is characterized in that: for being rotationally connected, and make the clamp structure that is configured for the clamping paper between box body lower surface and load module upper surface through elastic component between described box body and load module.
5. the electronic notebook with the pressure sensitive membrane according to claim 1, it is characterized in that: comprise microphone and audio processing modules in the described control module, microphone is located at the control panel place, the output of microphone links to each other with audio processing modules, and the output of audio processing modules is connected with the input port of control module.
6. the electronic notebook with the pressure sensitive membrane according to claim 5 is characterized in that: be provided with central processing module, clock module, memory module, keyboard input module, usb data interface module and power management module in the described control module.
CN 201220559092 2012-10-29 2012-10-29 Electronic notebook with pressure sensitive film Expired - Fee Related CN202854664U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102945066A (en) * 2012-10-29 2013-02-27 苏州大学 Electronic notebook with pressure-sensitive film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102945066A (en) * 2012-10-29 2013-02-27 苏州大学 Electronic notebook with pressure-sensitive film
CN102945066B (en) * 2012-10-29 2015-06-10 苏州大学 Electronic notebook with pressure-sensitive film

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