CN102436724A - Sliding touch type power point (PPT) wireless controller - Google Patents
Sliding touch type power point (PPT) wireless controller Download PDFInfo
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- CN102436724A CN102436724A CN2011102621597A CN201110262159A CN102436724A CN 102436724 A CN102436724 A CN 102436724A CN 2011102621597 A CN2011102621597 A CN 2011102621597A CN 201110262159 A CN201110262159 A CN 201110262159A CN 102436724 A CN102436724 A CN 102436724A
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Abstract
The invention discloses a sliding touch type power point (PPT) wireless controller which comprises two parts including a sliding touch type wireless transmitter and a universal serial bus (USB) wireless receiver, wherein the sliding touch type wireless transmitter comprises a shell, a touch panel, a singlechip, a coding circuit, a radio frequency (RF) transmission circuit and a power module, wherein the touch panel is connected with the singlechip, and a control signal is transmitted into the singlechip; the singlechip is also connected with the coding circuit; after the received control signal passes through an input/ output (I/ O), a high-low level signal is output into the coding circuit, so that the coding circuit is controlled to encode a corresponding code; the singlechip is also connected with a RF emission circuit, and the control signal is sent out by the RF emission circuit; and the power module is used for supplying a power supply for a whole device. The sliding touch type PPT wireless controller is simple and reliable in structure, flexible and convenient in operation, low in cost and applicable to places such as a school and the like which usually use multimedia teaching.
Description
Technical field
The invention belongs to the Computer Control Technology field, the touch PPT wireless controller of particularly a kind of slip.
Background technology
PPT (power point) is one of maximum software of using in the teaching, because this Software Operation property and illustrative are more intense, is requisite application software in the school classroom.But need utilize mouse to operate in teacher's process at school, the demonstration of control PPT because the restriction of mouse has so just limited teacher's action, only teaches it near lectern, can not go to the central classroom interaction that carries out with it of student.
Some multi-functional telepilots have been arranged at present on the market; For example the patent No. is 200720119493.6 to disclose a kind of multi-functional multimedia remote controller; But the many uses of the control panel button of this part patent are more loaded down with trivial details, and human-computer interaction interface is stiff, are not very vivid; The patent No. is that 200920043086.0 patent discloses a kind of PPT Pen for turning page, and this part patent only is provided with a telescopic teacher's pointer on telepilot, and is little with traditional controller difference.
In a word, the PPT Pen for turning page of selling in the market, circuit structure is complicated, and volume is bigger, carries inconvenience, and the button that has is many, uses more loaded down with trivial detailsly, and human-computer interaction interface is stiff, is not very vivid.
Summary of the invention
The technical matters that the present invention solved is to provide a kind of practical slip touch PPT wireless controller.
The technical solution that realizes the object of the invention is: the touch PPT wireless controller of a kind of slip; Comprise slide touch radio transmitters and USB wireless receiver two parts, the touch radio transmitters of said slip comprises shell, touch panel, single-chip microcomputer, coding circuit, radio-frequency transmissions circuit, power module; Said touch panel is connected with single-chip microcomputer, and control signal is sent to single-chip microcomputer; This single-chip microcomputer also is connected with coding circuit, gives coding circuit with the control signal that receives through output high-low level signal behind the I/O, and the control coding circuit is write corresponding codes; Said single-chip microcomputer also is connected with the radio-frequency transmissions circuit, and control signal is sent through the radio-frequency transmissions circuit, and power module is that whole device provides power supply;
Said USB wireless receiver is arranged on the controlled computer; This receiver comprises detecting circuit, second singlechip; Said detecting circuit is connected with second singlechip; The radio signal that receives is become low-frequency square-wave signal and is transferred to second singlechip, and second singlechip is transferred to connected computer after with the signal demodulation coding that receives.
The present invention compared with prior art, its remarkable advantage is: 1) the touch PPT wireless controller of slip of the present invention, realized the PPT telepilot of slip touch function, four keys can be realized the implication more than ten; 2) adopt printed inductance technology, simplify the radio-frequency transmissions circuit structure; 3) adopt the software demodulation technology, omitted hardware demodulation circuit; 4) select the single-chip microcomputer that has the integration USB function for use, reduced the USB control circuit; 5) circuit structure of the present invention is very simple, and software program substitutes many circuit functions, and working stability is reliable, can be made into superthin structure, and the control circuit touch keyboard function of simply sliding is provided simultaneously; 6) the present invention is simple and reliable for structure, flexible and convenient operation, and cost is low, is applicable to frequent places of using multimedia teaching such as school.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is the radio operation apparatus system schematic diagram of a kind of control computer of the present invention.
Fig. 2 is a keyboard touch action exploded view.
Fig. 3 is membrane keyboard testing circuit figure.
Fig. 4 is printing-type radio-frequency transmissions circuit theory diagrams.
Fig. 5 is the decoding program process flow diagram.
Fig. 6 is the touch radio transmitters circuit theory diagrams that slide.
Fig. 7 is a USB wireless receiver circuits schematic diagram, and wherein (a) is the singlechip chip connection layout, (b) is detecting circuit and filtering circuit figure.
Fig. 8 is printing-type inductance type radio-frequency transmissions circuit PCB figure.
Embodiment
In conjunction with Fig. 1 ~ Fig. 8, the invention relates to a kind of radio operation device of control computer, be mainly used in the demonstration of multimedia documents such as computing machine lantern slide.The touch PPT wireless controller of a kind of slip of the present invention; Comprise slide touch radio transmitters and USB wireless receiver two parts, the touch radio transmitters of said slip comprises shell, touch panel, single-chip microcomputer, coding circuit, radio-frequency transmissions circuit, power module; Said touch panel is connected with single-chip microcomputer, and control signal is sent to single-chip microcomputer; This single-chip microcomputer also is connected with coding circuit, gives coding circuit with the control signal that receives through output high-low level signal behind the I/O, and the control coding circuit is write corresponding codes; Said single-chip microcomputer also is connected with the radio-frequency transmissions circuit, and control signal is sent through the radio-frequency transmissions circuit, and power module is that whole device provides power supply;
Said USB wireless receiver is arranged on the controlled computer; This receiver comprises detecting circuit, second singlechip; Said detecting circuit is connected with second singlechip; The radio signal that receives is become low-frequency square-wave signal and is transferred to second singlechip, and second singlechip is transferred to connected computer after with the signal demodulation coding that receives.
Said detecting circuit is superregenerative detection circuit or superhet detecting circuit.The coding chip that coding circuit adopted is eV1527.The model of the second singlechip in the USB wireless receiver is a SONIX-SN8P2200 series (like SN8P2202P or the like).
Control content in the touch panel in the radio operation device of control computer of the present invention can be provided with as required, is example with Fig. 2, but four multiple instruction implications of keyboard simple realization, and simple to operate, vivid.Specifically describe the circuit module in the touch radio transmitters that slides below:
Touch keyboard is the printing panel that metal material or other conductive materials constitute.Four touch areas are arranged, be respectively 1,2,3,4 districts.As shown in Figure 2, touch action process 1 → 2 → 3 → 4 or 4 → 3 → 2 → 1 representative are releases, and system does not have the situation of effective button can get into dormant state automatically after following five minutes, and this moment, extraneous slide no longer was identified; Touch action 1 → 4 or the downward page turning of 2 → 3 representatives; 4 → 1 or 3 → 2 upwards page turnings of representative; 1 → 3 or 2-4 the representative minimize; 3 → 1 or 4 → 2 representative maximizations.To code instruction is first release, operates the operation of any one page turning or minimax again and gets final product.
Single-chip microcomputer is responsible for handling the identification of slide keypad and to the coding circuit transmitting control commands.The touch recognition circuit is as shown in Figure 3.With some membrane keyboards is example, and an I/O (like the P2.0 mouth) of single-chip microcomputer produces a pulse, behind current-limiting resistance R1, gives the integrating circuit that R2 and C1 form, and delivers to single-chip microcomputer P1.0 mouth at last.P1.0 and P2.0 are configured to input port and delivery outlet respectively, and P1.0 regularly detects the high-low level signal.Charging produces high level to the square-wave signal of being seen off by P2.0 to electric capacity; This moment, P1.0 was a high level, and the body capacitance shunting voltage makes and is output as low level when human body touch, and P1.0 detects low level signal; P1.0 or high level when hand is decontroled; Parameter is by capacitance resistance and frequency decision, and optional frequency 500kHz produces with timer.
Coding chip in the coding circuit is eV1527, as long as the periphery adds several resistance capacitances, it need not be encoded in the circuit board, and decoding need only be decoded with software program, and each chip has one 20 address code, and the probability of repetition is minimum, and is safe.
The radio-frequency transmissions circuit part is in order to simplify circuit, and few original paper such as only sound table generator, C1, C2, C3, R1 and printed inductance constitutes.Wherein printed inductance has L1 and L2.Concrete schematic diagram is as shown in Figure 4.
In conjunction with Fig. 6, Fig. 7, USB wireless receiver of the present invention partly comprises:
(1) superregenerative detection circuit or superhet detecting circuit; The present invention reduces the higher hamonic wave effect of signals in order to improve receiving sensitivity, seals in secondary or above not gate at the output terminal of circuit; Experiment shows the raising signal gain; The high-low level variable signal is precipitous, and spuious higher hamonic wave signal seldom is very beneficial for single-chip microcomputer data are handled.
(2) have the single-chip microcomputer of USB kernel, model is a SONIX-SN8P2200 series (like SN8P2202P or the like), this two parts work of finishing dealing with, and the one, the level signal of bringing from detecting circuit to be decoded, program flow diagram is as shown in Figure 5; The 2nd, with software simulation usb circuit sequential, send keypad code to computing machine, like Page up, Page down, ESC, CTRL+F5 etc., represent downward page turning, upwards page turning respectively, minimize and maximize implication.
When using this equipment, the receiver that will have USB interface inserts on the USB of computer, and behind the machine initialization receiver to be calculated, touch radio transmitters operation is moved to sign indicating number sliding.Then, the user realizes page turning up and down, maximizes, minimizes or the like operation through different slip touch operation.In addition, computing machine can freely be changed the shortcut order of different sliding action representatives through client software.
By on can know; The present invention provides a kind of brand-new keyboard operation user experience; The tactile keyboard that promptly slides operation; The present invention adopts the I/O of single-chip microcomputer to be equipped with the function that simple peripheral circuit just can be realized touch key-press, then through the combination of actions of several membrane keyboards, represents the different commands implication.
The present invention utilizes the function of software replacement hardware circuit, realizes the optimization of circuit.USB wireless receiver part realizes modulation-demodulation circuit that also saved the USB control circuit simultaneously, this part is also realized with software with software.Receiver has only single-chip microcomputer, detecting circuit module and 1/4 wavelength antennas, and the volume of receiver is very little, has only the USB flash disk size.
The present invention simplifies the technology of radio-frequency transmissions circuit.Adopt the printed inductance mode to design a simple, reliable and stable radio-frequency transmissions circuit.Owing to do not have bulky wire wound inductance, transmitter can be designed to the very little ultra-thin card form telepilot of volume.
Claims (4)
1. touch PPT wireless controller that slides; It is characterized in that; Comprise slide touch radio transmitters and USB wireless receiver two parts, the touch radio transmitters of said slip comprises shell, touch panel, single-chip microcomputer, coding circuit, radio-frequency transmissions circuit, power module; Said touch panel is connected with single-chip microcomputer, and control signal is sent to single-chip microcomputer; This single-chip microcomputer also is connected with coding circuit, gives coding circuit with the control signal that receives through output high-low level signal behind the I/O, and the control coding circuit is write corresponding codes; Said single-chip microcomputer also is connected with the radio-frequency transmissions circuit, and control signal is sent through the radio-frequency transmissions circuit, and power module is that whole device provides power supply;
Said USB wireless receiver is arranged on the controlled computer; This receiver comprises detecting circuit, second singlechip; Said detecting circuit is connected with second singlechip; The radio signal that receives is become low-frequency square-wave signal and is transferred to second singlechip, and second singlechip is transferred to connected computer after with the signal demodulation coding that receives.
2. the touch PPT wireless controller of slip according to claim 1 is characterized in that, said detecting circuit is superregenerative detection circuit or superhet detecting circuit.
3. the touch PPT wireless controller of slip according to claim 1 and 2 is characterized in that the coding chip that coding circuit adopted is eV1527.
4. the touch PPT wireless controller of slip according to claim 1 and 2 is characterized in that, the model of the second singlechip in the USB wireless receiver is a SONIX-SN8P2200 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102621597A CN102436724A (en) | 2011-09-06 | 2011-09-06 | Sliding touch type power point (PPT) wireless controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102621597A CN102436724A (en) | 2011-09-06 | 2011-09-06 | Sliding touch type power point (PPT) wireless controller |
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| Publication Number | Publication Date |
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| CN102436724A true CN102436724A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102621597A Pending CN102436724A (en) | 2011-09-06 | 2011-09-06 | Sliding touch type power point (PPT) wireless controller |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020093424A1 (en) * | 2001-01-17 | 2002-07-18 | Travis Parry | Wireless multi-function communication device |
| CN1928942A (en) * | 2006-09-28 | 2007-03-14 | 中山大学 | Multifunctional remote controller |
| CN201820350U (en) * | 2010-08-05 | 2011-05-04 | 盛乐信息技术（上海）有限公司 | Remote control without button |
| CN201927166U (en) * | 2010-12-08 | 2011-08-10 | 苗连强 | Multimedia courseware playing remote controller |
| CN202257900U (en) * | 2011-09-06 | 2012-05-30 | 南京铁道职业技术学院 | Sliding touch type PPT (Power Point) wireless controller |
-
2011
- 2011-09-06 CN CN2011102621597A patent/CN102436724A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020093424A1 (en) * | 2001-01-17 | 2002-07-18 | Travis Parry | Wireless multi-function communication device |
| CN1928942A (en) * | 2006-09-28 | 2007-03-14 | 中山大学 | Multifunctional remote controller |
| CN201820350U (en) * | 2010-08-05 | 2011-05-04 | 盛乐信息技术（上海）有限公司 | Remote control without button |
| CN201927166U (en) * | 2010-12-08 | 2011-08-10 | 苗连强 | Multimedia courseware playing remote controller |
| CN202257900U (en) * | 2011-09-06 | 2012-05-30 | 南京铁道职业技术学院 | Sliding touch type PPT (Power Point) wireless controller |
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Application publication date: 20120502 |