CN109117019A - Variable report point rate handwriting pad and its report point rate adjusting method - Google Patents
Variable report point rate handwriting pad and its report point rate adjusting method Download PDFInfo
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- CN109117019A CN109117019A CN201810771783.1A CN201810771783A CN109117019A CN 109117019 A CN109117019 A CN 109117019A CN 201810771783 A CN201810771783 A CN 201810771783A CN 109117019 A CN109117019 A CN 109117019A
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- report point
- point rate
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- 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
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- 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
- G06F13/4291—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a clocked protocol
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
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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)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses the variable report point rate handwriting pad of one kind and its report point rate adjusting methods, which includes central processing unit, induction touch-control module, communication module, which is connected with the induction touch-control module, the communication module；The central processing unit is used to the handwriting tracks data that the induction touch-control module exports being transmitted to external equipment by the communication module and every preset time period obtains the communication quality of the communication module；The induction touch modules are for detecting the report point rate that handwriting tracks and every preset time period adjust itself according to the communication quality of the communication module.Variable report point rate handwriting pad provided by the invention, it can be under the premise of Network status allows, using higher report point rate come work, when Network status is bad, report point rate can be suitably reduced, the data throughout of network is reduced, to maintain smooth writing, do not occur losing the serious errors such as stroke, to improve user experience.
Description
Technical field
The present invention relates to technical field of intelligent equipment, and in particular to the variable report point rate handwriting pad of one kind and its report point rate are adjusted
Method.
Background technique
Handwriting pad has been widely used in education sector at present, and common mode is with ink cartridge in writing pencil, in fact
While normally writing on present paper, electronic handwriting is recorded or is transferred out in real time, in actual use,
It needs multiple handwriting pad network consistings, for example, application No. is 2017203865731 patent documents to disclose a kind of intelligent class
Hall test system, student use handwriting pad as instructional terminal from equipment, teacher use a main equipment with it is each from equipment into
The alternative communication of row.
Under normal conditions, handwriting pad transmits a track data to main equipment with fixed data transfer rate from equipment.Wireless network
Communication protocol can be bluetooth, ZIGBEE, customized 2.4G network etc., in existing cloud education handwriting pad, usual EMR mould
Block (i.e. electromagnetic induction touch-control module) is with fixed report point rate to MCU unidirectional data transmission, and MCU will be hand-written with stream transmission mode
Track data is transferred to main equipment, if there is network congestion, causes data transmission fails, then abandons data, does not consider to retransmit,
To guarantee the real-time of data, when handwriting pad is more from equipment, the data traffic of network is increased, and wireless network environment
It is easy the interference by other wireless device signals, causes network congestion, at this point, the person's handwriting transmission on handwriting pad is slack-off, even
Pen is lost, using effect is influenced.
Summary of the invention
The purpose of the present invention is to provide the variable report point rate handwriting pad of one kind and its report point rate adjusting methods, and use can be improved
Family experience.
To achieve the above object, technical solution of the present invention provides a kind of variable report point rate handwriting pad, including centre
Device, induction touch-control module, communication module are managed, the central processing unit is connected with the induction touch-control module, the communication module；
The central processing unit is used to the handwriting tracks data of the induction touch-control module output passing through the communication mould
Block is transmitted to external equipment and every preset time period obtains the communication quality of the communication module；
The induction touch modules are for detecting handwriting tracks and every preset time period according to the communication module
Communication quality adjusts the report point rate of itself.
Further, the induction touch-control module used in the sample clock frequency of adjusting itself or adjusting by adopting
The quantity of sampling point realizes the adjusting of the report point rate.
Further, the variable report point rate handwriting pad further includes memory module, clock module, the central processing unit with
The memory module, the clock module are connected.
Further, the variable report point rate handwriting pad further includes display module, multimedia interface module, the centre
Reason device is connected with the display module, the multimedia interface module.
Further, the variable report point rate handwriting pad further includes page number identification module, USB HID interface module, described
Central processing unit is connected with the page number identification module, the USB HID interface module.
Further, the communication module includes at least one of bluetooth module, 2.4G wireless module.
To achieve the above object, technical solution of the present invention additionally provides a kind of report point of above-mentioned variable report point rate handwriting pad
Rate adjusting method, the report point rate adjusting method include that every preset time period executes a step S1~step S2；
Step S1: the central processing unit obtains the communication quality of presently described communication module；
Step S2: if the communication quality of presently described communication module is less than the first communication quality threshold, the induction touching
It controls module and the report point rate of itself is reduced into preset value, if the communication quality of presently described communication module is more than or equal to the first communication matter
It measures threshold value and is less than or equal to the second communication quality threshold, then the report point rate that the induction touch-control module keeps current is constant, if working as
The communication quality of the preceding communication module is greater than the second communication quality threshold, then the induction touch-control module judgement it is current itself
Whether report point rate is less than the first report point rate threshold value, if so, the report point rate of itself is increased preset value by the induction touch-control module,
If it is not, the report point rate that then the induction touch-control module keeps current is constant；
Wherein, first communication quality threshold is less than second communication quality threshold.
Further, the step S1 further include: the central processing unit obtains the report of presently described induction touch-control module
Point rate, if the report point rate of presently described induction touch-control module is less than or equal to the second report point rate threshold value and presently described communication module
Communication quality is less than first communication quality threshold, then the central processing unit executes alarm operation, wherein second report
Point rate threshold value is less than the first report point rate threshold value.
Variable report point rate handwriting pad provided by the invention, can be under the premise of Network status allows, using higher report
Point rate carrys out work, when Network status is bad, can suitably reduce report point rate, the data throughout of network be reduced, to maintain to flow
It is smooth to write, do not occur losing the serious errors such as stroke, to improve user experience.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram for variable report point rate handwriting pad that embodiment of the present invention provides；
Fig. 2 is the data sampling that touch-control module is incuded in embodiment of the present invention and the timing diagram of processing；
Fig. 3 is that the relationship of report the point rate and its data processing time for the induction touch-control module that embodiment of the present invention provides is shown
It is intended to.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
It is a kind of schematic diagram for variable report point rate handwriting pad that embodiment of the present invention provides referring to Fig. 1, Fig. 1, this is variable
Report point a rate handwriting pad include central processing unit 1, induction touch-control module 7, communication module, memory module 5, clock module (RTC) 6,
Display module 4, multimedia interface module (MMI) 9, page number identification module 10, USB HID interface module 8, the central processing unit
1 with induction touch-control module 7, communication module, memory module 5, clock module (RTC) 6, display module 4, multimedia interface module 9,
Page number identification module 10, USB HID interface module 8, communication module are connected；
Wherein, which is wireless communication module, including bluetooth module 3,2.4G wireless module 2, it is preferable that the indigo plant
Tooth module 3 can be low-power consumption bluetooth module (BLE), and the communication module with external equipment for being communicated, by hand-written rail
Mark data are transmitted to external equipment, for example, the variable report point rate handwriting pad in embodiment of the present invention can be used as from equipment, acquisition
The handwriting tracks of student, and the handwriting tracks data of acquisition are transmitted to the main equipment of teacher, realize intelligent tutoring；
Display module 4 can use liquid crystal display (LCD), and memory module 5 can be flash memory (Flash), when
Clock module (RTC) 6 is used to provide central processing unit real-time clock, and multimedia interface module (MMI) 9 can input defeated for voice
Module out, page number identification module 10 is for realizing auto page number detection；
The central processing unit 1 is used to the handwriting tracks data that the induction touch-control module 7 exports passing through the communication
Module transfer obtains the communication quality of the communication module to external equipment and every preset time period, for example, the centre
Managing device can be MCU；
The induction touch modules 7 are for detecting handwriting tracks and every preset time period according to the communication module
Communication quality adjust itself report point rate；
Report point rate (PPS, Point Per Second) the i.e. each second of handwriting pad is from Trackpad (i.e. induction touch-control module)
The track points that outflow comes, are made of for each o'clock a frame data, and a frame data length is to fix, for example, 8 bytes, including the point
X, Y and pressure information.Generally between 133 to 200, usual higher report point rate can have preferable current report point rate
Writing experience is educated on hand-written platform in current cloud, and the report point rate of handwriting pad directly affects the data traffic of network, the present invention
Embodiment provide variable report point rate handwriting pad, can Network status allow under the premise of, using higher report point rate come
Work can suitably reduce report point rate, reduce the data throughout of network when Network status is bad, to maintain smooth writing,
Do not occur losing the serious errors such as stroke, to improve user experience.
Wherein, in embodiments of the present invention, induction touch-control module 7 can by adjust itself sample clock frequency or
The quantity that person adjusts used sampled point realizes the adjusting of the report point rate, for example, between communication module and external equipment
Network quality it is preferable when, can form handwriting tracks data using more sampled point can throw when network quality is poor
The data of the sampled point of fixed intervals are abandoned, to guarantee the fluency write；
Wherein, the variable report point rate handwriting pad in embodiment of the present invention can be for using dot matrix pen, time writer or active
The handwriting pad of the various input technologies such as capacitance pen, for example, the induction touch-control module 7 can be electromagnetic induction touch-control module (EMR)；
Embodiment of the present invention additionally provides a kind of report point rate adjusting method of above-mentioned variable report point rate handwriting pad, the report point
Rate adjusting method includes that every preset time period executes a step S1~step S2；
Step S1: the central processing unit obtains the communication quality of presently described communication module；
Step S2: if the communication quality of presently described communication module is less than the first communication quality threshold, the induction touching
It controls module and the report point rate of itself is reduced into preset value, if the communication quality of presently described communication module is more than or equal to the first communication matter
It measures threshold value and is less than or equal to the second communication quality threshold, then the report point rate that the induction touch-control module keeps current is constant, if working as
The communication quality of the preceding communication module is greater than the second communication quality threshold, then the induction touch-control module judgement it is current itself
Whether report point rate is less than the first report point rate threshold value, if so, the report point rate of itself is increased preset value by the induction touch-control module,
If it is not, the report point rate that then the induction touch-control module keeps current is constant；
Wherein, first communication quality threshold is less than second communication quality threshold.
Preferably, in the above-mentioned methods, the step S1 further include: the central processing unit obtains presently described induction touching
The report point rate of module is controlled, if the report point rate of presently described induction touch-control module is less than or equal to the second report point rate threshold value and presently described
The communication quality of communication module is less than first communication quality threshold, then the central processing unit executes alarm operation, wherein
The second report point rate threshold value is less than the first report point rate threshold value.
For example, central processing unit 1 is with the communication matter between fixed intervals period detecting real-time communication module and external equipment
Amount (wireless network connection quality) Q=get_link_quality () is then said when Q value is less than the first communication quality threshold Q0
Bright communication quality is poor, the notice induction touch-control module 7 of central processing unit 1, wherein the mode of this notice is with pin external interrupt
Mode notifies induction touch-control module 7, Q value information can also be transmitted to induction touch-control module 7 with the fixed intervals period, so that induction is touched
Controlling module 7 automatically reduces report point rate, and reduced amount is preset value (namely step value) Pstep, executes PPS=PPS-Pstep；
When Q value is greater than the second communication quality threshold, then illustrate current better quality, notice induction touch-control module 7 is allowed to
Automatic to increase report point rate, reduced amount is preset value (namely step value) Pstep, executes PPS=PPS+Pstep；
For example, the second report point rate threshold value is 100, the first report point rate threshold value is 200, when the report point rate of induction touch-control module
For the value of PPS between 100-200, the value of Pstep can take 10, when the report point rate PPS of induction touch-control module is less than or equal to 100
When (for example 100), if Q value, still less than the first communication quality threshold Q0, central processing unit takes alarm mechanism, it will alarm
Information is output to display module or multimedia interface module (MMI) 9, with prompt user current network environment under, writing has
It is likely to occur and loses pen or larger delay.
By the above-mentioned means, the report point rate of induction touch-control module 7 can be adaptively adjusted according to Network status, guarantee hand
Fluency that writing on the blackboard is write is write to the maximum extent not by the influence of Network status, is combined report point rate and is optimized.
Wherein, in embodiments of the present invention, can by control induction touch-control module 7 the sampled-data processing time come
Control induction touch-control module report point rate, referring to fig. 2, Fig. 2 be induction touch-control module data sampling and processing timing diagram,
In, T1 is the channel sample time, and usually level and vertical direction respectively scans continuous 5 channel signal values, subsequently into number
It is fixed and invariable the time according to processing time T2, T1, and data processing time T2 is variable, but there are a minimum Tmin, ginsengs
See Fig. 3, corresponding maximum report point rate PPSmax=1/ (T1+Tmin) of this value, it should be noted that setting Tmin will guarantee enough
Data processing time, to complete the processing such as position and calculation of pressure, data smoothing, otherwise Tmax corresponds to most tabloid point rate
PPSmin, setting most tabloid point rate is to guarantee writing experience；
Specifically, can on the basis of ensuring data sampling time T1 and processing time Tmin, through timer setting,
T2 size is controlled, to control the report point rate of induction touch-control module 7, in actual use, PPS can be changed default
Value (namely step value) is mapped with the changing value of T2, forms a look-up table, puts a rate to report with can be convenient in a program
Adjustment amount modify；
The present invention may be implemented under the conditions of wireless networking, reliably be protected using the variable report point rate handwriting pad in the present invention
The handwriting trace for depositing user guarantees that handwriting trace is correctly processed, and is not in cause to judge by accident due to losing pen.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. the variable report point rate handwriting pad of one kind, which is characterized in that including central processing unit, induction touch-control module, communication module, institute
Central processing unit is stated to be connected with the induction touch-control module, the communication module；
The central processing unit is used to pass the handwriting tracks data of the induction touch-control module output by the communication module
It transports to external equipment and every preset time period obtains the communication quality of the communication module；
The induction touch modules are for detecting handwriting tracks and every preset time period according to the communication of the communication module
The report point rate of quality adjustment itself.
2. variable report point rate handwriting pad according to claim 1, which is characterized in that the induction touch-control module passes through adjusting
The sample clock frequency of itself or the quantity for adjusting used sampled point realize the adjusting of the report point rate.
3. variable report point rate handwriting pad according to claim 1, which is characterized in that the variable report point rate handwriting pad also wraps
Memory module, clock module are included, the central processing unit is connected with the memory module, the clock module.
4. variable report point rate handwriting pad according to claim 1, which is characterized in that the variable report point rate handwriting pad also wraps
Include display module, multimedia interface module, the central processing unit and the display module, the multimedia interface module phase
Even.
5. variable report point rate handwriting pad according to claim 1, which is characterized in that the variable report point rate handwriting pad also wraps
Page number identification module, USB HID interface module are included, the central processing unit connects with the page number identification module, the USB HID
Mouth mold block is connected.
6. variable report point rate handwriting pad according to claim 1, which is characterized in that the communication module includes bluetooth mould
At least one of block, 2.4G wireless module.
7. a kind of report point rate adjusting method of any variable report point rate handwriting pad of claim 1-6, which is characterized in that institute
Stating report point rate adjusting method includes that every preset time period executes a step S1~step S2；
Step S1: the central processing unit obtains the communication quality of presently described communication module；
Step S2: if the communication quality of presently described communication module is less than the first communication quality threshold, the induction touch-control mould
The report point rate of itself is reduced preset value by block, if the communication quality of presently described communication module is more than or equal to the first communication quality threshold
It is worth and is less than or equal to the second communication quality threshold, then the report point rate that the induction touch-control module keeps current is constant, if current institute
The communication quality for stating communication module is greater than the second communication quality threshold, then itself current report point of the induction touch-control module judgement
Whether rate is less than the first report point rate threshold value, if so, the report point rate of itself is increased preset value by the induction touch-control module, if
No, then the report point rate that the induction touch-control module keeps current is constant；
Wherein, first communication quality threshold is less than second communication quality threshold.
8. report point rate adjusting method according to claim 7, which is characterized in that the step S1 further include: in described
Central processor obtain it is presently described induction touch-control module report point rate, if it is presently described induction touch-control module report point rate be less than etc.
In the communication quality of the second report point rate threshold value and presently described communication module is less than first communication quality threshold, is then described
Central processor executes alarm operation, wherein the second report point rate threshold value is less than the first report point rate threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810771783.1A CN109117019A (en) | 2018-07-13 | 2018-07-13 | Variable report point rate handwriting pad and its report point rate adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771783.1A CN109117019A (en) | 2018-07-13 | 2018-07-13 | Variable report point rate handwriting pad and its report point rate adjusting method |
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| CN201810771783.1A Pending CN109117019A (en) | 2018-07-13 | 2018-07-13 | Variable report point rate handwriting pad and its report point rate adjusting method |
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| CN110032295A (en) * | 2019-03-29 | 2019-07-19 | 联想(北京)有限公司 | Control method, control device, electronic equipment and the medium of electronic equipment |
| CN110069170A (en) * | 2019-05-13 | 2019-07-30 | 京东方科技集团股份有限公司 | Touch screen report point rate processing method, device, electronic equipment and readable storage medium storing program for executing |
| CN112860136A (en) * | 2021-01-08 | 2021-05-28 | 北京字节跳动网络技术有限公司 | Method, device, terminal and storage medium for controlling electronic writing device |
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