CN106970721A - A kind of control system of Intelligent input device - Google Patents
A kind of control system of Intelligent input device Download PDFInfo
- Publication number
- CN106970721A CN106970721A CN201710189378.4A CN201710189378A CN106970721A CN 106970721 A CN106970721 A CN 106970721A CN 201710189378 A CN201710189378 A CN 201710189378A CN 106970721 A CN106970721 A CN 106970721A
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- China
- Prior art keywords
- parts
- main control
- mcu
- touch
- input device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of control system of Intelligent input device, including main control MCU part, 2.4G RF parts and touch sensor parts, the main control chip performs keyboard matrix scanning, RF agreement and touch algorithm, the touch sensor parts are sensed by capacitance touch, gather finger and cursor of mouse data are calculated by algorithm with touching the sensed data of sensor sensitive surfaces, main control chip MCU；Wireless digital signal transmission is responsible in the 2.4G RF parts, and keyboard is transferred into 2.4G RF parts with touching the cursor data that sensor sensings are converted into by algorithm.The present invention realizes the function of the chips of like product two by individually this touch integrated chip to MCU by a MCU.And MCU pin position does not increase, a variety of functions are realized in ingenious utilization I/O port multiplexing, reduce packaging cost.
Description
Technical field
The present invention relates to a kind of control system, specifically a kind of control system of Intelligent input device.
Background technology
Existing scheme is usually that, using a main control chip+RF transmitting chips+touch chip, three chips launch data
To reception, or main control chip is packaged together with RF transmitting chips and makes one chips+touch chip, and two chips are by number
According to being transmitted into reception.Above-mentioned like product is because will use one individually to touch chip, and cost can be higher by a lot.
The content of the invention
It is an object of the invention to provide a kind of control system of Intelligent input device, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides following technical scheme：
A kind of control system of Intelligent input device, including main control MCU part, 2.4G RF parts and touch sensor portions
Point, the main control chip performs keyboard matrix scanning, RF agreement and touch algorithm, and the touch sensor parts pass through capacitive touch
Sensing, collection finger and the sensed data for touching sensor sensitive surfaces are touched, main control chip MCU calculates cursor of mouse by algorithm
Data；Wireless digital signal transmission is responsible in the 2.4G RF parts, and keyboard is converted into touching sensor sensings by algorithm
Cursor data be transferred to 2.4G RF parts.
It is used as further scheme of the invention：The main control MCU part, 2.4G RF parts and touch sensor segment sets
In Cheng Yi chip.
It is used as further scheme of the invention：Also include receiving main control chip part, the reception main control chip part with
2.4G RF parts receive communication and data are sent into host computer by USB.
It is used as further scheme of the invention：The 2.4G RF parts use 2.4G transport modules, 2.4G transport modules
Pass sequentially through SPI interface and GPIO is connected to main control MCU part.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention individually this will touch integrated chip to MCU
In, the function of the chips of like product two is realized by a MCU.And MCU pin position does not increase, and ingenious utilization I/O port is answered
With a variety of functions are realized, packaging cost is reduced.
Brief description of the drawings
Fig. 1 is the structural representation of the control system of Intelligent input device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of control system of Intelligent input device, including main control MCU part,
2.4G RF parts and touch sensor parts, the main control chip perform keyboard matrix scanning, RF agreement and touch algorithm, institute
State touch sensor parts by capacitance touch to sense, collection finger and the sensed data for touching sensor sensitive surfaces, master control core
Piece MCU calculates cursor of mouse data by algorithm；The 2.4G RF are responsible for part wireless digital signal transmission, by keyboard with
The cursor data that touch sensor sensings are converted into by algorithm is transferred to 2.4G RF parts.
The main control MCU part, 2.4G RF parts and touch sensor are partially integrated in a chip.
Also include receiving main control chip part, the reception main control chip part receives communication by number with 2.4G RF parts
Host computer is sent to according to by USB.
The 2.4G RF parts use 2.4G transport modules, and 2.4G transport modules pass sequentially through SPI interface and GPIO connections
To main control MCU part.
Main control MCU part is 8 single-chip microcomputers based on 8051 instruction flow line cable architectures, possesses 8K flash, passes through VCC/
Tetra- lines of GND/RST/Y2D can realize the download, upgrading, debugging of program, support to contain two kinds inside the inspection of 16bit CRC schools, MCU
Clock may be selected:The fast clocks of 12M the slow clocks of 32K, switching clock source can realize MCU normal work and battery saving mode.MCU
Containing watchdog reset and low-voltage reset function, program can set exceptional condition to enter reset state.GPIO includes 8 matrixes
R networks and 12 C networks, can be achieved most 96 Independent keys keyboards, and realize by I O multiplexing multiple LED control.
AD2 can detect real-time voltage value.XTALO/XTALI be 2.4G transport modules external crystal input and output pin, connect 16M without
Source crystal makes 2.4G transport module normal works.VCC_RF provides power supply for 2.4G transport modules.
In main control MCU after electricity, capacitance touch module, 2.4G transport modules, GPIO are initialized, setting timer period is
1ms.After the completion of initialization, MCU using timer 1ms as when base work：
1) per 10ms run-down capacitance touch modules.Touch modules use self-capacitance principle of induction, control 14 to touch
Passage is touched, a passage part is touched and does transverse axis, a part does the longitudinal axis, cross arrangement.When finger is put on touch pad, correspondence
The influence value that the transverse axis longitudinal axis touches passage will change, so as to judge particular location of the finger in touch surface, and it is front and rear twice
The change of the touch location scanned can be converted to the displacement of touch, be both the cursor displacement of mouse；
2) per 10ms run-down matrixing networks, GPIO points of 8 row network R0~R7, and 12 horizontal 0~C11 of network C, often
Piece C and R can connect a button, when button is pressed, and software is by controlling the R nets of the low level, then button connection of C networks
Network can be also pulled low, software by judge the change for dragging down correspondence C network R networks just can know that C buttons corresponding with R whether by
Press, be so achieved that keypad function；
3) MCU each when base 1ms enter 2.4G communication protocol stacks.Transmitting to 2.4G modules is set equally with receiving
Parameter (including address, channel, carriers rate), transmitter module can then be carried out in emission state, receiving module in reception state
The communication of data, data format is sent to reception, receives data deciphering school according to the agreement of setting, and encryption
Test, according still further to protocol-decoding, host computer is uploaded to by USB.
MCU is not when free time uses GPIO, MOT_G feet-controlleds element (triode, mos pipes) open shape
LED multiplexings pin on state, C networks then can control low and high level to realize LED light on and off as state instruction.When MCU scans square
During battle array, the switch element closed mode of MOT_G foot controls, then the LED multiplexing pin on C networks will not be caused to LED state
Influence, LED is always to go out, and LED state existing in short-term within the 10ms cycles of going out does not interfere with the visual impression of observation then
By such LED is achieved that multiplexing.
MCU is every a 100ms AD2 magnitude of voltage of sampling, and when scan matrix, AD can be closed, and do GPIO C Web vector graphics,
AD sample voltage values are opened during AD values of sampling.
MCU passes through Time-sharing control：Touch modules are controlled respectively, are done algorithm and are converted to cursor value；Control matrix network is scanned
Button value；2.4G modules are controlled, cursor value and button value are sent to reception according to agreement, USB is uploaded to, realizes keyboard
The three-in-one schemes of+Touchpad+RF.
Similar scheme, which is used alone, touches IC, and cursor transfer algorithm is done using special touch IC, then by interface light
Mark data transfer is sent to reception by 2.4G transport modules again to MCU, MCU.LED is also controlled using single IO, either
All relatively easy in the complexity of algorithm and IO multifunctional multiplexing, this programme is complete by special touch IC algorithm integrations to MCU
The whole province removes a touch IC, and MCU is as similar scheme pin number, without encapsulation IC pin position more, also saves encapsulation overhead,
Make this programme touch IC more whole than similar scheme cost savings price, and the more similar scheme of list MCU costs becomes without larger
Change.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of control system of Intelligent input device, it is characterised in that including main control MCU part, 2.4G RF parts and touch
Sensor parts, the main control chip performs keyboard matrix scanning, RF agreement and touch algorithm, and the touch sensor parts are logical
Capacitance touch sensing, collection finger and the sensed data for touching sensor sensitive surfaces are crossed, main control chip MCU is calculated by algorithm
Cursor of mouse data；Wireless digital signal transmission is responsible in the 2.4G RF parts, by keyboard with touching sensor sensings by calculating
The cursor data that method is converted into is transferred to 2.4G RF parts.
2. the control system of Intelligent input device according to claim 1, it is characterised in that the main control MCU part,
2.4G RF parts and touch sensor are partially integrated in a chip.
3. the control system of Intelligent input device according to claim 1, it is characterised in that also including receiving main control chip
Data are sent to host computer by part, the reception main control chip part with the reception communication of 2.4G RF parts by USB.
4. the control system of Intelligent input device according to claim 1, it is characterised in that adopt the 2.4G RF parts
2.4G transport modules are used, 2.4G transport modules pass sequentially through SPI interface and GPIO is connected to main control MCU part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189378.4A CN106970721A (en) | 2017-03-27 | 2017-03-27 | A kind of control system of Intelligent input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189378.4A CN106970721A (en) | 2017-03-27 | 2017-03-27 | A kind of control system of Intelligent input device |
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| Publication Number | Publication Date |
|---|---|
| CN106970721A true CN106970721A (en) | 2017-07-21 |
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ID=59335686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710189378.4A Pending CN106970721A (en) | 2017-03-27 | 2017-03-27 | A kind of control system of Intelligent input device |
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| Country | Link |
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| CN (1) | CN106970721A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110173424A1 (en) * | 2010-01-12 | 2011-07-14 | Atmel Rousset | Integrated circuit device configuration |
| CN102541381A (en) * | 2011-09-16 | 2012-07-04 | 骏升科技(中国)有限公司 | Processing method for implementation of capacitive touchpad high-resolution output on low-end single-chip microcomputer |
| US20140210785A1 (en) * | 2008-10-02 | 2014-07-31 | Wacom Co., Ltd. | Combination touch and transducer input system and method |
| CN104521327A (en) * | 2012-04-13 | 2015-04-15 | 丰唐物联技术（深圳）有限公司 | Electrical device with low voltage output and low voltage touch panel |
| CN104898519A (en) * | 2015-05-23 | 2015-09-09 | 上海地根实业发展有限公司 | Intelligent scenario power switch |
| CN204990203U (en) * | 2015-10-10 | 2016-01-20 | 东莞市康茂电子有限公司 | Mini wired keyboard of hand -held type with touch pad |
-
2017
- 2017-03-27 CN CN201710189378.4A patent/CN106970721A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140210785A1 (en) * | 2008-10-02 | 2014-07-31 | Wacom Co., Ltd. | Combination touch and transducer input system and method |
| US20110173424A1 (en) * | 2010-01-12 | 2011-07-14 | Atmel Rousset | Integrated circuit device configuration |
| CN102541381A (en) * | 2011-09-16 | 2012-07-04 | 骏升科技(中国)有限公司 | Processing method for implementation of capacitive touchpad high-resolution output on low-end single-chip microcomputer |
| CN104521327A (en) * | 2012-04-13 | 2015-04-15 | 丰唐物联技术（深圳）有限公司 | Electrical device with low voltage output and low voltage touch panel |
| CN104898519A (en) * | 2015-05-23 | 2015-09-09 | 上海地根实业发展有限公司 | Intelligent scenario power switch |
| CN204990203U (en) * | 2015-10-10 | 2016-01-20 | 东莞市康茂电子有限公司 | Mini wired keyboard of hand -held type with touch pad |
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Application publication date: 20170721 |
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| RJ01 | Rejection of invention patent application after publication |