CN209199052U - Support the touch control keyboard wirelessly with wired two kinds of communication modes - Google Patents
Support the touch control keyboard wirelessly with wired two kinds of communication modes Download PDFInfo
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- CN209199052U CN209199052U CN201821138328.XU CN201821138328U CN209199052U CN 209199052 U CN209199052 U CN 209199052U CN 201821138328 U CN201821138328 U CN 201821138328U CN 209199052 U CN209199052 U CN 209199052U
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Abstract
Wireless and wired two kinds of communication modes touch control keyboard is supported the utility model discloses a kind of.Touch tablet, keyboard and radio-frequency enabled are integrated on a product by the touch control keyboard, simultaneously, realize touch detection, button operation detection and LED control function simultaneously by a main control chip, needing to reuse individually touch chip can be achieved with touch function, meanwhile, realize that LED control and button operation detect using time-sharing multiplex pin timesharing, reduce pin use, product structure is simplified, encapsulation overhead is effectively reduced, reduces cost of goods manufactured.In addition, the touch control keyboard is integrated with the wire communication of USB interface and two kinds of communication modes of wireless communication of radio frequency chip, user can choose any one communication mode and realize data communication, improve usage experience, simultaneously, when the failure of one of communication mode, another communication mode can be used and replace, improve product reliability.
Description
Technical field
The utility model relates to Wireless touch technology more particularly to a kind of support wireless and wired two kinds of communication modes touching
Controlled keyboard.
Background technique
The wireless input devices such as existing Wireless Keyboard, wireless touchpad, wireless mouse are usually by main control chip, radio frequency
Chip and touch three chips of chip are integrated, and Lai Jinhang data send and receive, or main control chip and radio frequency chip are sealed
After being fitted together again with touch integrated chip, Lai Jinhang data send and receive.This causes prior art that will use
One individually touches chip, this mode higher cost.Meanwhile existing wireless input device generally only supports wireless mode to pass
Transmission of data, when causing wireless transmission method to fail because of equipment internal radio communication module failure, the wireless input device is with regard to nothing
Method realizes its input function, therefore its functional reliability of existing wireless input device is also to be improved.
Utility model content
The utility model provide it is a kind of support wireless and wired two kinds of communication modes touch control keyboard, to solve existing skill
Art needs the problem of using individually touching chip and only supporting wireless way for transmitting data.
The utility model is achieved by the following technical solution:
It is a kind of to support wireless and wired two kinds of communication modes touch control keyboard, including main control chip, touch tablet, keyboard,
LED, USB interface and radio frequency chip；
The main control chip is connect by pin thereon with the touch tablet, keyboard, LED, USB interface and radio frequency chip,
For detecting the key being pressed on touch coordinate and the keyboard on the touch tablet, the control LED by each pin
Light on and off, control the USB interface and/or the radio frequency chip for the key assignments of the touch coordinate and the key being pressed
It sends；
In each pin of the main control chip, the pin that connect with the LED is time-sharing multiplex pin, also simultaneously with it is described
Keyboard connection, light on and off and the detection keyboard of the main control chip by LED described in the time-sharing multiplex pin Time-sharing control
On the key that is pressed.
Further, the radio frequency chip is the radio frequency chip of compatible 2.4GHz and 5GHz working frequency.
Further, it is described support wirelessly and wired two kinds of communication modes touch control keyboards be built-in with rechargeable lithium batteries,
Dry cell slot and power management module, the main control chip are connect with the power management module, the power management module with
The rechargeable lithium batteries are connected with the dry cell slot, and the USB interface is connect with the power management module, for passing through
The power management module is rechargeable lithium batteries charging.
Further, the keycap of each key of the keyboard is transparent or semitransparent, meanwhile, each of described keyboard
The LED is mounted below the keycap of key.
Further, the touch tablet includes multirow transverse electrode and multiple row longitudinal electrode, and the main control chip passes through logical
It is connect with input/output interface with each transverse electrode and longitudinal electrode, for detecting the parasitism electricity of each transverse electrode and longitudinal electrode
Hold variable quantity.
Further, the keyboard includes several keys, several transverse connecting lines and several longitudinally connected lines, every a pair of of cross
To connecting line one of key corresponding with the combination of longitudinally connected line, transverse connecting line in every a pair of of combination and longitudinally connected
Line is corresponding with the combination by key connection, and the main control chip is by universal input/output interface and each transverse connecting line and indulges
It is connected to connecting line, for detecting the level change of transverse connecting line and longitudinally connected line in each combination.
The utility model compared with prior art, have the following advantages and beneficial effects: the support wirelessly and wired two kinds
Touch tablet, keyboard and radio-frequency enabled are integrated on a product by the touch control keyboard of communication mode, meanwhile, pass through a master control core
Piece realizes touch detection, button operation detection and LED control function simultaneously, and needing to reuse individually touch chip can be achieved with
Touch function, meanwhile, it realizes that LED control and button operation detect using time-sharing multiplex pin timesharing, reduces pin use, letter
Change product structure, effectively reduced encapsulation overhead, reduces cost of goods manufactured.It is connect in addition, the touch control keyboard is integrated with USB
The wire communication of mouth and two kinds of communication modes of wireless communication of radio frequency chip, user can choose the realization of any one communication mode
Data communication improves usage experience, meanwhile, when the failure of one of communication mode, another communication mode generation can be used
It replaces, improves product reliability.
Detailed description of the invention
Fig. 1 is that the overall structure provided by the utility model for supporting wireless and wired two kinds of communication modes touch control keyboard is shown
It is intended to；
Fig. 2 is touch tablet and main control chip connection schematic diagram；
Fig. 3 is the connection schematic diagram of key Yu transverse connecting line and longitudinally connected line；
Fig. 4 is key, keycap and LED location relation schematic diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail.
As shown in Figure 1, provided by the embodiment of the utility model support the wirelessly touch control keyboard with wired two kinds of communication modes,
Including main control chip 1, touch tablet 2, keyboard 3, LED4, USB interface 6 and radio frequency chip 5；
Main control chip 1 is connect by pin thereon with touch tablet 2, keyboard 3, LED4, USB interface 6 and radio frequency chip 5, is used
The key 10 being pressed on through the touch coordinate and keyboard 3 on each pin detection touch tablet 2, the light on and off, the control that control LED4
USB interface 6 and/or radio frequency chip 5 processed send the key assignments of touch coordinate and the key 10 being pressed；
In each pin of main control chip 1, the pin connecting with LED4 is time-sharing multiplex pin, is also connect simultaneously with keyboard 3,
Main control chip 1 passes through the light on and off of time-sharing multiplex pin Time-sharing control LED4 and detects the key 10 being pressed on keyboard 3.By dividing
When multiplexing technology can realize adjust LED4 and detection key 10 operate dual function.
Main control chip 1 uses 8 single-chip microcontrollers based on 8051 instruction flow line cable architectures, possesses 8K flash, it can be achieved that journey
The inspection of the 16bit cyclic redundancy school (CRC) is supported in downloading, upgrading, the debugging of sequence.Containing there are two types of clocks may be selected inside single-chip microcontroller:
The normal mode of operation or battery saving mode of single-chip microcontroller may be implemented in the fast clock of 12MHz and the slow clock of 32KHz, switching clock source.It is main
After control chip 1 powers on, touch tablet 2, radio frequency chip 5, universal input/output interface are initialized, and timer internal are arranged
Period is 1ms, after the completion of initialization, main control chip 1 using timer 1ms as when base work.
The every 10ms run-down touch tablet 2 of main control chip 1, touch tablet 2 use self-capacitance principle of induction.As shown in connection with fig. 2,
Touch tablet 2 includes multirow transverse electrode and multiple row longitudinal electrode, and in Fig. 2, each prismatic of the column with slash indicates a longitudinal direction
Electrode, each line blank diamond shape indicate a transverse electrode.When finger touches a certain position on touch tablet 2, the position is corresponding
Transverse electrode and the parasitic capacitance of longitudinal electrode will change, variable quantity is than transverse electrode near the position and vertical
Parasitic capacitor variations amount to electrode is bigger.Main control chip 1 passes through universal input/output interface and each transverse electrode and longitudinal electricity
Pole connection, for detecting the parasitic capacitor variations amount of each transverse electrode and longitudinal electrode, according to each transverse electrode and longitudinal electrode
Integrated capacitance variable quantity can determine touch coordinate, the maximum transverse electrode of parasitic capacitor variations amount and parasitic capacitor variations amount
The crosspoint of maximum longitudinal electrode is touch coordinate, and the touch coordinate detected twice by front and back is, it can be achieved that touch
The detection of track, this touch coordinate testing principle are the well-known technique in capacitive touch screen field, and details are not described herein.
The every 10ms run-down keyboard 3 of main control chip 1, as shown in figure 3, keyboard 3 connects including several keys 10, several transverse directions
Wiring 11 and several longitudinally connected lines 12, it is every a pair of transverse connecting line 11 it is corresponding with the combination of longitudinally connected line 12 one of them press
Key 10, transverse connecting line 11 and the key 10 corresponding with the combination of longitudinally connected line 12 in every a pair of of combination connect, master control
Chip 1 is connect by universal input/output interface with each transverse connecting line 11 and longitudinally connected line 12, for detecting in each combination
Transverse connecting line 11 and longitudinally connected line 12 level change, according in each combination transverse connecting line 11 and longitudinally connected line
12 level change can determine which key 10 is pressed, this is the well-known technique of 10 technical field of key, and details are not described herein.
In the present embodiment, radio frequency chip 5 is the radio frequency chip 5 of compatible 2.4GHz and 5GHz working frequency, two kinds of channel radios
Letter frequency ensure that the unimpeded of communication.
It supports wirelessly and the touch control keyboard of wired two kinds of communication modes is built-in with rechargeable lithium batteries 7, dry cell slot 8 and electricity
Source control module 9, main control chip 1 are connect with power management module 9, power management module 9 and rechargeable lithium batteries 7 and dry cell
Slot 8 connects, and USB interface 6 is connect with power management module 9, for being the charging of rechargeable lithium batteries 7 by power management module 9.
In this way, three kinds of rechargeable lithium batteries 7, dry cell and circumscribed USB power supply modes can be supported for touch control keyboard power supply.
In the present embodiment, the keycap 13 of each key 10 of keyboard 3 is transparent or semitransparent, meanwhile, keyboard 3 it is every
A LED4 is mounted below the keycap 13 of a key 10, as shown in figure 4, the mountable side in key 10 LED4, keycap
13 cover key 10 and LED4.LED4 may include red-light LED 4, green light LED 4 and blue-ray LED 4, by adjust red-light LED 4,
Green light LED 4 and the respective size of current of blue-ray LED 4 can realize the brightness to LED4 and the adjusting of color, this is LED4 color tune
The well-known technique in section field, details are not described herein.
The support is wireless and the touch control keyboard set of wired two kinds of communication modes keyboard 3, mouse (i.e. touch tablet 2), nothing
Global function, keyboard 3 use QWERTY full keyboard to line (i.e. radio frequency chip 5), support up to 94 key mappings.It supports wireless
Rechargeable lithium batteries 7 and dry cell slot 8 are built-in with the touch control keyboard of wired two kinds of communication modes, rechargeable lithium both can be used
The power supply of battery 7 can also use dry cell power supply.The support is wirelessly and the touch control keyboard of wired two kinds of communication modes is a length of
148mm, width 100mm, with a thickness of 18mm, only hand size, both hands can be grasped easily, can connect desktop computer, notebook,
In-car TV, HTPC, large-size screen monitors TV, smart television, hard disc player, network player, X-BOX game machine etc..The support nothing
The touch tablet 2 of the touch control keyboard of line and wired two kinds of communication modes supports mouse roller, left mouse button, right mouse button, mouse to move
The functions such as dynamic, manipulation is convenient, and there is two-stage gear speed to adjust.The working frequency of radio frequency chip 5 is 2.4GHz.
Above-described embodiment is only preferred embodiment, the protection scope being not intended to limit the utility model, all in this reality
With made any modifications, equivalent replacements, and improvements within novel spirit and principle etc., the utility model should be included in
Within protection scope.
Claims (5)
1. a kind of support wireless and wired two kinds of communication modes touch control keyboard, which is characterized in that including main control chip, touch
Plate, keyboard, LED, USB interface and radio frequency chip；
The main control chip is connect by pin thereon with the touch tablet, keyboard, LED, USB interface and radio frequency chip, is used for
The key being pressed on touch coordinate and the keyboard on the touch tablet is detected by each pin, controls the bright of the LED
It goes out, control the USB interface and/or the radio frequency chip for the transmission of the key assignments of the touch coordinate and the key being pressed
It goes out；
In each pin of the main control chip, the pin that connect with the LED is time-sharing multiplex pin, also simultaneously with the keyboard
Connection, the main control chip pass through quilt on the light on and off of LED described in the time-sharing multiplex pin Time-sharing control and the detection keyboard
The key pressed；
The keycap of each key of the keyboard is transparent or semitransparent, meanwhile, under the keycap of each key of the keyboard
Side is mounted on the LED.
2. as described in claim 1 support the wirelessly touch control keyboard with wired two kinds of communication modes, which is characterized in that described to penetrate
Frequency chip is the radio frequency chip of compatible 2.4GHz and 5GHz working frequency.
3. as described in claim 1 support the wirelessly touch control keyboard with wired two kinds of communication modes, which is characterized in that the branch
The touch control keyboard for holding wireless and wired two kinds of communication modes is built-in with rechargeable lithium batteries, dry cell slot and power management module,
The main control chip is connect with the power management module, the power management module and the rechargeable lithium batteries and described dry
Battery case connection, the USB interface are connect with the power management module, for being described fill by the power management module
The charging of electric-type lithium battery.
4. as described in claim 1 support the wirelessly touch control keyboard with wired two kinds of communication modes, which is characterized in that the touching
Template includes multirow transverse electrode and multiple row longitudinal electrode, and the main control chip passes through universal input/output interface and each laterally electricity
Pole is connected with longitudinal electrode, for detecting the parasitic capacitor variations amount of each transverse electrode and longitudinal electrode.
5. as claimed in claim 4 support the wirelessly touch control keyboard with wired two kinds of communication modes, which is characterized in that the key
Disk includes several keys, several transverse connecting lines and several longitudinally connected lines, every a pair of transverse connecting line and longitudinally connected line
Combination corresponds to one of key, transverse connecting line and longitudinally connected line key corresponding with the combination in every a pair of of combination
Connection, the main control chip is connect by universal input/output interface with each transverse connecting line and longitudinally connected line, for detecting
The level change of transverse connecting line and longitudinally connected line in each combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138328.XU CN209199052U (en) | 2018-07-18 | 2018-07-18 | Support the touch control keyboard wirelessly with wired two kinds of communication modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138328.XU CN209199052U (en) | 2018-07-18 | 2018-07-18 | Support the touch control keyboard wirelessly with wired two kinds of communication modes |
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| Publication Number | Publication Date |
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| CN209199052U true CN209199052U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821138328.XU Active CN209199052U (en) | 2018-07-18 | 2018-07-18 | Support the touch control keyboard wirelessly with wired two kinds of communication modes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530067A (en) * | 2020-04-02 | 2020-08-14 | 努比亚技术有限公司 | Method for controlling game by multiple keys, mobile terminal and computer readable storage medium |
-
2018
- 2018-07-18 CN CN201821138328.XU patent/CN209199052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530067A (en) * | 2020-04-02 | 2020-08-14 | 努比亚技术有限公司 | Method for controlling game by multiple keys, mobile terminal and computer readable storage medium |
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