CN104049830B - For time writer and the exchange method of magnetic board - Google Patents
For time writer and the exchange method of magnetic board Download PDFInfo
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- CN104049830B CN104049830B CN201410287362.3A CN201410287362A CN104049830B CN 104049830 B CN104049830 B CN 104049830B CN 201410287362 A CN201410287362 A CN 201410287362A CN 104049830 B CN104049830 B CN 104049830B
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Abstract
One aspect of the present invention provides a kind of exchange method for time writer and electromagnetism, and magnetic board is to the time writer sending signal, and time writer receives the signal that magnetic board is sent, and sends feedback signal to magnetic board according to the signal of reception, and the exchange method includes：Magnetic board judges the step of whether chip starts working in the pen of time writer；The step of magnetic board sends data according to judged result superior system, if wherein magnetic board judges that chip does not start to work in the pen of time writer, then magnetic board superior system sends the position data of time writer, if magnetic board judges that chip is started working in the pen of time writer, magnetic board superior system sends the related data of the time writer including position, button, pressure sensitivity, type.It is orientable characteristic using the not upper electricity of the chip of time writer, superior system sends the position data of pen, is easy to superior system to track the position of pen, reduces power consumption provided by the present invention for time writer and the exchange method of magnetic board.
Description
Technical field
The present invention relates to magnetic board interaction technique.
Background technology
Electromagnetism plate technique is a kind of human-computer interaction technology, using the system of electromagnetism plate technique by magnetic board and time writer group
Into.When user is drawn or write on magnetic board with time writer, magnetic board can be directly by the person's handwriting and nib of user
The data such as pressure are transmitted to the devices such as computer, so as to simulate the function of real drawing writing.Fig. 1 is fixed for magnetic board in the prior art
Position principle schematic, shown in Fig. 1, magnetic board 200 is disposed with crisscross coil with y directions in the x-direction, and coil can be sent
Electromagnetic wave, time writer 100 is received after the electromagnetic wave of the transmission of magnetic board 200, the LC oscillating circuit starting of oscillations in pen.Work as magnetic board
After the transmission of 200 coils terminates, LC oscillating circuits still keep concussion in pen, and now the coil of magnetic board 200 can receive electricity
Concussion electromagnetic signal in magnetic pen 100, and by scanning the received signal strength of each coil of x and y directions, you can it is fixed respectively
Position goes out x and y-axis coordinate of the time writer 100 on magnetic board 200, so as to realize positioning.
Fig. 2 is the operation principle schematic diagram in magnetic board each cycle in the prior art.As shown in Fig. 2 being drawn respectively in figure
The waveform for sending LC oscillating circuits in waveform and pen on plate, (LC shakes by the waveform composition of a fixed frequency for two kinds of waveforms
Swing circuit resonance frequency).The waveform of these fixed frequencies, according to the time length of transmission can be divided into it is short, in, long 3 kinds it is different
Envelope waveform.Each cycling flow is as follows：Before long envelope waveform, magnetic board 200 passes through short envelope and middle Envelop waves
The combination of shape sends different command.Pen is connected to after order, is parsed by circuit in pen.Pen has been parsed after order, in Chang Bao
During network waveform, pen carries out the measurement of pen point pressure, button etc..After long envelope waveform, magnetic board sends short envelope waveform, electromagnetism
Pen 100, which receives resonant circuit after this waveform, to be shaken, and feeds back the concussion.If resonant circuit is shorted into ground, it will not feed back
The concussion.The purpose of feedback data can be reached with feedback data 0 and 1 using both differences.When data transfer is finished, carry out
Positioning.Magnetic board equally sends multigroup short envelope waveform, by measuring the feedback impact strength of every group of short envelope waveform, pen with means for holding it in right position
Position.
The normal workflow of magnetic board 200 is the circulation of above-mentioned each cycling flow, real by different orders
Existing different function.Be provided with chip in time writer 100, for complete pen point pressure, button measurement, and order knowledge
Not, data transmission etc., the power supply of chip is supplied by electromagnetic viscosimeter, and when the height of time writer 100, (that is, time writer 100 is apart from electricity
The distance of magnetic sheet 200) it is higher when, oscillation energy not enough, chip will not start.When the height reduction of time writer 100, oscillation energy
After increase, chip starts and gives the feedback data of magnetic board 200.
Thus, magnetic board 200 before normal work it needs to be determined that the chip of time writer 100 whether on electricity, i.e. magnetic board
There is individual pairing process with time writer, its whole workflow is as shown in Figure 3：Unidentified to arrive before a feedback signal, magnetic board 200 is sent out
A particular command A is sent, and waits the feedback of pen.If chip electrifying startup in pen, the status information of pen can be fed back.Than such
The type of pen, state etc..Receive after pen feedback, magnetic board sends order B, receives the id information of pen.After the completion of pairing, magnetic board
Order C is cycled through, starts to track the data such as pen, and feedback pressure button.
From the above it can be seen that the current workflow of magnetic board and time writer is more complicated, time writer and magnetic board are matched somebody with somebody
It is cumbersome to process, at least need two cycles, that is to say, that it is in order that user, which really realizes time writer 100 and started working,
After A, B are completed, when magnetic board starts transmission order C, so, although do not feel to come when normally using, but if
User quickly clicks, and causes time writer ceaselessly to match, and due to entering input quickly, data feedback may be caused to ask
Topic, influences usage experience.Meanwhile, in order to ensure to be unlikely to power-off in pen on chip after electricity, magnetic board must ceaselessly be sent
Signal, but magnetic board does not judge whether time writer is using, even if user does not use time writer, can ceaselessly send out yet
Send, so as to cause magnetic board and power consumption larger.In addition, electric on existing flow, the chip of time writer, and with magnetic board pairing with
Just start working afterwards (feedback button pressure sensitivity data), i.e. orientable spy when magnetic board does not utilize the chip of time writer not upper electric
Property, the position for tracking pen is reported to host computer.
The content of the invention
The present invention is in view of problem above is used for the exchange method of time writer and magnetic board there is provided a kind of, and it is using electricity
The chip of magnetic pen is orientable characteristic when not upper electric, and superior system sends the position data of pen, is easy to superior system to track
The position of pen, and simplify the pairing of time writer and electroplax, reduce power consumption.
One aspect of the present invention provides a kind of for time writer (100) and the exchange method of magnetic board (200), the electricity
Magnetic sheet (200) receives the signal that magnetic board (200) is sent to the time writer (100) sending signal, the time writer (100),
And feedback signal is sent to the magnetic board (200) according to the signal of reception, the exchange method includes：The magnetic board (200)
The step of whether chip starts working in the pen of the time writer (100) judged；The magnetic board (200) according to judged result to
The step of superior system sends data, if wherein the magnetic board (200) judges that chip does not have in the pen of the time writer (100)
There is start-up operation, then magnetic board (200) the superior system sends the position data of the time writer (100), if described
Magnetic board (200) judges that chip is started working in the pen of the time writer (100), then magnetic board (200) the superior system
Send the related data of the time writer (100) including position, button, pressure sensitivity, type.
Wherein, the magnetic board (200) judges that the step of whether chip starts working in the pen of the time writer (100) is wrapped
Include：The step of magnetic board (200) is to the time writer (100) transmission command signal, the command signal indicates the electricity
Magnetic pen (100) is sent to the magnetic board (200) includes type, pressure sensitivity, button, state in interior feedback data；The magnetic board
(200) the step of whether chip starts working in the pen of the time writer (100) is judged according to the feedback data of the time writer.
Preferably, the feedback data includes being used to represent whether chip starts working in the pen of the time writer (100)
Status data.
Preferably, this method also includes：The magnetic board (200) judges that the magnetic board (200) superior system is sent
The step of the related data number of times of the time writer (100) including position, button, pressure sensitivity, type, if the electromagnetism
Plate (200) superior system sends the related data time of the time writer (100) including position, button, pressure sensitivity, type
Number is more than setting value, then the position of magnetic board (200) the superior system transmission time writer (100), button, pressure sensitivity number
According to if the magnetic board (200) superior system sends the time writer including position, button, pressure sensitivity, type
(100) related data number of times is less than setting value, then the magnetic board (200) continue up grade system send include position, button,
The related data of the time writer (100) including pressure sensitivity, type.
The magnetic board of present embodiment and the exchange method of time writer, include state by setting time writer feedback data
Data, the data may indicate that the whether upper electricity of time writer, thus magnetic board can judge that time writer is according to the feedback data of time writer
No upper electricity, and using time writer in pen chip not on electricity when can also feed back the characteristic of framing signal, realize the chip in pen
The position of pen can be just sent when not working on power with superior system, once and chip starts power up work in the pen of time writer
Make, magnetic board can determine the data such as pressure sensitivity, button, type according to the feedback signal of time writer, and by these data and pen
Position is together sent to superior system.The magnetic board of present embodiment and the exchange method of time writer, eliminate magnetic board and electricity
The pairing process of magnetic pen, and the smooth switching between chip operation and power down.
Another aspect of the present invention also provides a kind of for time writer (100) and the exchange method of magnetic board (200), the electricity
Magnetic sheet (200) receives the signal that magnetic board (200) is sent to the time writer (100) sending signal, the time writer (100),
And feedback signal is sent to the magnetic board (200) according to the signal of reception, the exchange method also includes：The magnetic board
(200) the step of whether chip works in the pen of the time writer (100) judged；The magnetic board (200) is according to judged result
Mode of operation is selected, if wherein the magnetic board (200) judges that chip is not in work in the pen of the time writer (100)
Make, then the magnetic board (200) enters station-keeping mode, if the magnetic board (200) is judged in the pen of the time writer (100)
Chip is in work, then the magnetic board (200) enters normal mode of operation.
In the station-keeping mode, the magnetic board (200) performs following steps：The magnetic board (200) is to the electromagnetism
The step of pen (100) sends framing signal；The magnetic board (200) judges the time writer according to the intensity for receiving signal
(100) whether chip is the step of work in pen, if wherein the intensity that the magnetic board (200) receives signal is more than first
Given threshold, then judge chip operation in the pen of the time writer (100), and the magnetic board (200) enters normal mode of operation,
If the intensity that the magnetic board (200) receives signal is less than in the first given threshold, the pen for judging the time writer (100)
Chip is not in work, and the magnetic board (200) is continually maintained in station-keeping mode.
In the normal mode of operation, following steps are performed：The magnetic board (200) is sent out to the time writer (100)
The step of sending command signal, framing signal and other corresponding signals；Magnetic board (200) basis connects the time writer
(100) feedback signal determines position, pressure sensitivity, button and the categorical data of the time writer (100), and superior system is sent
The step of stating position, pressure sensitivity, button and the categorical data of time writer (100)；The magnetic board (200) is strong according to reception signal
Degree judges that chip is whether the step of work in the pen of the time writer (100), if wherein the magnetic board (200) receives letter
Number intensity be more than the second given threshold, then judge in the pen of the time writer (100) that chip is started working, the magnetic board
(200) normal mode of operation is continually maintained in, if the intensity that the magnetic board (200) receives signal is less than the second setting threshold
Value, then judge that chip does not work in the pen of the time writer (100), the magnetic board (200) enters station-keeping mode.
Preferably, the Second Threshold is less than or equal to the first threshold.
Preferably, the command signal indicate time writer (100) feedback include the types of time writer (100), pressure sensitivity,
Data including button.
The magnetic board of present embodiment and the exchange method of time writer, in the pen of time writer chip not on electricity when just can be with
The position of time writer is reported and submitted to superior system, is easy to superior system to track the location track of pen.Simultaneously as being connect by magnetic board
Whether chip works on power in pen of the intensity to judge time writer collected mail number, thus in pen on chip before electricity magnetic board without
Order and/or other pulses (such as ordering A) need to be ceaselessly sent as prior art, only framing signal need to be sent, therefore
Magnetic board can carry out the transmission framing signal of batch (-type) in station-keeping mode, substantially reduce the power consumption of magnetic board 200.Namely
Say, using the magnetic board and the exchange method of time writer of present embodiment, as long as time writer apart from magnetic board farther out, it is fixed to be put into
Bit pattern, and in station-keeping mode can intermittence send framing signal, substantially reduce the power consumption of magnetic board.
Brief description of the drawings
Fig. 1 is magnetic board positioning principle schematic diagram in the prior art；
Fig. 2 is the operation principle schematic diagram in magnetic board each cycle in the prior art；
Fig. 3 is the principle schematic of the whole work process of magnetic board in the prior art；
Fig. 4 is the principle schematic of the exchange method for being used for time writer and magnetic board of first embodiment of the invention；
Fig. 5 is the data of the exchange method for being used for magnetic board and time writer of prior art and first embodiment of the invention
The explanation figure of host-host protocol；
Fig. 6 is a kind of workflow signal for the exchange method that first embodiment of the invention is used for time writer and magnetic board
Figure；
Fig. 7 is that another workflow for the exchange method that first embodiment of the invention is used for time writer and magnetic board is shown
It is intended to；
Fig. 8 is the principle schematic of the exchange method for being used for time writer and magnetic board of second embodiment of the invention；
Fig. 9 second embodiment of the invention is used for a kind of workflow signal of the exchange method of time writer and magnetic board
Figure.
Embodiment
The present invention is improved for problem present in existing electromagnetism plate technique, proposes a kind of new interaction side
The structure of method, time writer of the present invention and magnetic board is of the invention main to time writer and magnetic board compared with similar in technology
Exchange method improved, to make those skilled in the art more fully understand technical scheme, with reference to attached
The exchange method provided by the present invention for time writer and magnetic board is described in detail for figure and embodiment.At these
In accompanying drawing, for inscape identically or comparably, identical label is marked.Below be only the present invention be used for time writer and electricity
The preferred forms of the exchange method of magnetic sheet, the present invention is not limited in following structures.
As it was previously stated, it is necessary to complete the pairing of time writer 100 and magnetic board 200 before the normal work of time writer 100,
During pairing, the data that time writer 100 feeds back to magnetic board 200 are essentially fixed value (for order A and B feedback coefficient
According to), after successful matching, magnetic board 200 can send measuring command, it is desirable to the pressure sensitivity of the feedback measurement of time writer 100, key value
Deng to magnetic board 200, while these data messages are fed back to Upper system by magnetic board 200.In order to simplify time writer 100 and electricity
The pairing process of magnetic sheet 200, improves the usage experience of user, and an embodiment of the present invention has redesigned magnetic board and time writer
Exchange method and interaction protocol.In the present embodiment, order A, order B, order C are merged into 1 order D, i.e. electricity
Magnetic sheet 200 only can send order D in whole work process.And in time writer 100, the letter that A and order B will be ordered to feed back
Breath is simplified to minimal data amount, then merges the same pressure sensitivity of this data/button data, when time writer receives order D, just
Data after feedback merging；Or the number in the pen of time writer 100 on chip after electricity after the internal feedback merging of several orders
According to.Magnetic board 200 is received after the feedback data of time writer 100, and the type of pen, state can be determined according to the data and is pressed
Key and pressure etc., and can determine whether whether chip works on power in the pen of time writer 100 by the feedback data.With reference to figure
The interaction flow of 4 pairs of present embodiment magnetic boards and time writer is described.
Fig. 4 is the principle schematic of the exchange method for being used for magnetic board and time writer of first embodiment of the invention.Figure
In show time writer 100 in present embodiment LC oscillating circuits envelope waveform schematic diagram.Waveform is lc circuit in pen in figure
Envelope waveform.When the height of time writer 100 is higher, oscillator signal insufficient strength is not enough to chip power supply in pen, but now
Magnetic board 200 can determine the position of time writer 100 according to the framing signal of time writer 100, as shown in front half section in Fig. 4.When
When the height of time writer 100 is close to magnetic board 200, signal intensity is improved, and chip is started working in pen, and is sent to magnetic board 200
Feedback data, magnetic board 200 recognizes this feedback data, and valid data are fed back into Upper system, such as second half section institute in Fig. 4
Show.
In order that magnetic board 200 is received after the feedback data of time writer 100, the class of pen can be determined according to the data
Type, working condition (that is, whether chip works on power in pen) and button and pressure etc., and can determine whether by the feedback data
Whether chip works on power in the pen of time writer 100, and present embodiment has formulated new Data Transport Protocol.
Fig. 5 is the data of the exchange method for being used for magnetic board and time writer of prior art and first embodiment of the invention
The explanation figure of host-host protocol.Waveform in figure is the waveform of the LC oscillating circuits on time writer 100 in course of normal operation,
Wherein, Fig. 5 (A) is the waveform of the LC oscillating circuits on time writer 100 in the course of normal operation of prior art, Fig. 5 (B)
For the waveform of the LC oscillating circuits on time writer 100 in the course of normal operation of present embodiment.
As shown in figure 5, in the prior art, magnetic board 200 is sent after the order of measurement pressure sensitivity, and time writer 100 can feed back
Give magnetic board 200 1 16 data, including 11 pressure datas, 2 button datas and 3 retention datas.When user does not have
Button, and in the case that nib does not touch magnetic board, its data is 0, such as time writer 100 sends the tool of a data
Style is：0b ' 0000_0000_0000_0000 (0b ' represents binary system), reaction in waveform i.e. as shown in Fig. 5 (A),
In this case, magnetic board 200 can not determine whether chip starts working in the pen of time writer 100.So in whole flow process
In, magnetic board 200 can first send other orders as previously described and time writer 100 is matched, it is determined that whether chip starts in pen
Work.
And in the present embodiment, by the 000 of retention data, xxp being changed to, wherein xx represents the type of time writer 100, p
For distinguishing nib and rubber, that is, it is nib or rubber end close to magnetic board to represent.And in xx at least 1 be 1, such as it is electric
Magnetic pen 100 sends one instantiation of data：0b ' 0000_0000_0000_0010, reaction such as Fig. 5 (B) institute in waveform
Show.In this case, even if the nib of user does not have pressure, and user does not have operating pen, there is a meeting of data 1 all the time yet
Feed back to magnetic board 200.If in the presence of this data, illustrating that chip is started working in pen.If being not present, illustrate in pen on chip
Electricity is not completed.
That is, in the interaction protocol of present embodiment, being wrapped in the data that time writer 100 is sent to magnetic board 200
Containing status data, the status data may indicate that whether the chip of time writer 100 works on power.
Because magnetic board 200 can determine the pen of time writer 100 according to the feedback data of time writer 100 in the interaction protocol
Whether interior chip works on power, and because magnetic board 200 also can determine that when chip does not work on power in the pen of time writer 100
The position of time writer 100, therefore a kind of magnetic board of simplification and the exchange method of time writer are provided in present embodiment, tie below
Fig. 6 is closed this method is described.
Fig. 6 is the workflow schematic diagram for the exchange method that an embodiment of the present invention is used for magnetic board and time writer.Such as
Shown in Fig. 6, in step S50, magnetic board 200 starts and initialized, subsequently into step S51.In step s 51, magnetic board 200
Into normal mode of operation.In normal mode of operation, magnetic board 200 cycles through measuring command D, represents to send the bag of data
Network and positioning envelope, while receiving the feedback signal of time writer 100.At the same time, magnetic board 200 also performs step S52, judges
The whether upper electricity of chip in the pen of time writer 100.As for specific determination methods, then as it was previously stated, according to the transmission of time writer 100
Status data is judged in data, if it is decided that chip does not work on power in the pen of time writer 100, then it represents that time writer 100
Height it is higher, chip is not actuated in pen, then performs step S53.It is true according to the feedback signal of time writer 100 in step S53
Determine the position of time writer 100, and superior control system sends the position data of time writer 100.If it is determined that time writer 100
Chip works on power in pen, then it represents that the height of time writer 100 is relatively low, and chip starts in pen, then performs step S54.In step
In S54, the position of time writer 100 is determined according to the feedback signal of time writer 100, and the data sent according to time writer 100 are true
Determine the data such as pressure sensitivity, button, the type of time writer 100, and these data and positional information are sent to superior control system.
The whole work process of magnetic board 200 is to repeat step S51 to S53 or S54.
More than be present embodiment one in workflow schematic diagram, present embodiment is not limited to this, with reference to
Fig. 7 describes another workflow of present embodiment.
Fig. 7 is another workflow schematic diagram for the exchange method that first embodiment of the invention is used for magnetic board.Such as
Shown in Fig. 7, in step S60, magnetic board 200 starts and initialized, subsequently into step S61.In step S61, magnetic board
200 enter normal mode of operation.In normal mode of operation, magnetic board 200 cycles through measuring command D, represents to send data
Envelope and positioning envelope, while receive time writer 100 feedback signal.At the same time, magnetic board 200 also performs step S62,
Judge the whether upper electricity of chip in the pen of time writer 100.If it is determined that chip does not work on power in the pen of time writer 100, then it represents that
The height of time writer 100 is higher, and chip is not actuated in pen, then performs step S63.In step S63, according to time writer 100
Feedback signal determines the position of time writer 100, and superior control system sends the position data of time writer 100.If it is determined that
Chip works on power in the pen of time writer 100, then it represents that the height of time writer 100 is relatively low, and chip starts in pen, then performs step
S64.In step S64, judge whether K is equal to setting value, wherein K, which represents that the superior system of magnetic board 200 is sent, includes pen
The count value of the number of times of all data such as position, the type of pen, pressure sensitivity, button, wherein setting value are according to need to set one
Individual numerical value, it, which represents that the superior system of magnetic board 200 is sent, includes all data such as position, the type of pen, pressure sensitivity, the button of pen
Number of times enough, send all data without superior system again later, need to only send the position of time writer, pressure sensitivity, press
Key data.So if K is not equal to setting value, then step S65, in step S65, the superior system of magnetic board 200 are performed
System sends all data, and makes K=K+1, i.e. the superior system of expression magnetic board 200 is sent the position that includes pen, pen
The count value K of the number of times of all data such as type, pressure sensitivity, button adds 1, and K is started counting up from 0.If K is equal to setting value, hold
Row step S66, in step S66, the position of 200 superior systems transmission time writers of magnetic board, pressure sensitivity, button data.Electricity
The whole work process of magnetic sheet 200 is to repeat step S61 to S63, S64 or S66.
The magnetic board of present embodiment and the exchange method of time writer, include state by setting time writer feedback data
Data, the data may indicate that the whether upper electricity of time writer, thus magnetic board can judge that time writer is according to the feedback data of time writer
No upper electricity, and using time writer in pen chip not on electricity when can also feed back the characteristic of framing signal, realize the chip in pen
The position of pen can be just sent when not working on power with superior system, once and chip starts power up work in the pen of time writer
Make, magnetic board can determine the data such as pressure sensitivity, button, type according to the feedback signal of time writer, and by these data and pen
Position is together sent to superior system.The magnetic board of present embodiment and the exchange method of time writer, eliminate magnetic board and electricity
The pairing process of magnetic pen, and the smooth switching between chip operation and power down.
As it was previously stated, when time writer 100 apart from magnetic board 200 farther out when, the signal of sensing is than relatively low (before in Fig. 4 in pen
Half part), it is insufficient to allow in pen on chip electric.Now, the resonance coil in pen feed back to magnetic board 200 signal it is relatively low.
The intensity of this measurable feedback signal of magnetic board 200, and then judge whether chip starts working in pen.Based on the principle, this hair
The bright exchange method there is provided another magnetic board and time writer, time writer apart from magnetic board farther out when, magnetic board is only sent
Waveform is positioned, and only gives host computer transmission location data.When time writer is nearer apart from magnetic board, magnetic board is switched to normal work
Operation mode, starts to send to pen and orders and receive feedback data.Whether the interior chip of time writer pen starts working can be by electromagnetism
The power of the concussion feedback signal received on plate judges, is illustrated with reference to Fig. 8 and Fig. 9.
Fig. 8 is the principle schematic of the exchange method for being used for magnetic board and time writer of second embodiment of the invention.Fig. 8
Show two embodiments of present embodiment.A waveforms are LC vibrations electricity in the pen of present embodiment one embodiment in Fig. 8
B waveforms are the waveform of LC oscillating circuits in the pen of second embodiment of present embodiment in the waveform on road, Fig. 8.Figure
Middle threshold value is that the intensity of induced signal in pen can make threshold value electric on chip in pen, it is noted that threshold value herein is sensing letter in pen
Number threshold value, and in interaction due to be magnetic board judge the intensity of feedback signal judge in pen chip whether on electricity,
Thus really threshold value is the threshold value for the feedback signal strength that magnetic board 200 is received.
As shown in A waveforms in Fig. 8, pen apart from magnetic board farther out when, the signal of sensing is than relatively low (Fig. 8 A first halfs in pen
Point), it is not enough to allow electricity on chip.Now, an internal resonance coil feed back to magnetic board signal it is relatively low.Magnetic board it is measurable this
The intensity of feedback signal, judges that chip is not started working in pen.At this moment, magnetic board only sends the signal of positioning, does not send order
With the signal of data.When pen is close to magnetic board, induced signal intensity increase (Fig. 8 A latter halfs) in pen.Magnetic board is sensed
Feedback signal strength also accordingly increase.When this feedback exceedes threshold value 1, magnetic board is found out, and actively sends normal life
Order, and it is switched to normal mode of operation.Hereafter, magnetic board cycles through order always, and tracks pen.When pen leaves the spacing of plate one
From rear, induced signal intensity reduces in pen, and the feedback signal strength that magnetic board is sensed also accordingly reduces.When signal intensity is less than
During threshold value 2, magnetic board thinks that the chip of pen has been stopped, and is returned to the state for only sending framing signal.
It is understood that threshold value 1 or threshold value 2 herein, magnetic board are used for the threshold value for judging whether chip works in pen,
That is, in normal mode of operation, as long as the feedback signal strength (magnetic board sense received signal strength) that magnetic board is sensed is more than
Threshold value 1, it has been actually no in work but regardless of chip in pen in work to be considered as chip in pen, equally, as long as magnetic board
The feedback signal strength (magnetic board sense received signal strength) sensed is less than threshold value 1, is considered as in pen chip not in work
No matter chip is actually no in work in pen.Setting for threshold value 2 is also similar, in fact, what magnetic board was sensed
Feedback signal strength (magnetic board sense received signal strength) is even be also possible to during threshold value 2 in work, but now electromagnetism
Plate thinks that it does not work, and corresponding processing is not done.
As shown in B waveforms in Fig. 8, specific workflow is with shown in A waveforms.Unlike, the shake received in magnetic board
The intensity for swinging feedback signal is reached before given threshold, is sent intermittently by positioning waveform, is reduced power consumption.And due to only sending positioning
Waveform, eliminates the waveform for sending order and data, even if so interval positioning, does not interfere with the hair point rate of pen yet.
Fig. 9 second embodiment of the invention is used for a kind of workflow signal of the exchange method of magnetic board and time writer
Figure.In step S90, magnetic board 200 starts and initialized, subsequently into step S91.In step S91, magnetic board 200 enters
Station-keeping mode.In station-keeping mode, 200 transmission framing signals of magnetic board, while receiving the feedback signal of time writer 100.With
This simultaneously, magnetic board 200 also performs step S92, judge magnetic board 200 receive signal intensity whether be more than threshold value 1.If connect
Collect mail number intensity less than threshold value 1 then represent time writer 100 apart from magnetic board 200 farther out, in the pen of time writer 100 chip not on
Electricity work, then continue executing with step S91 and S92.The distance of time writer 100 is represented if the intensity for receiving signal is more than threshold value 1
Magnetic board is nearer, and chip works on power in the pen of time writer 100, into step S93.In step S93, magnetic board 200 enters
Normal mode of operation, in normal mode of operation, magnetic board 200 sends order, represents to send the envelope of data and positioning envelope,
The feedback signal of time writer 100 is received simultaneously, and the position of time writer 100 is determined according to the feedback signal of time writer 100, pressed
The data such as sense, button, type, and these information are sent to higher level's control system.At the same time magnetic board 200 performs step
S94, judges that whether magnetic board 200 receives the intensity of signal less than threshold value 2.If the intensity for receiving signal is greater than threshold value 2,
Represent that time writer 100 is closer to the distance apart from magnetic board 200, chip works on power in the pen of time writer 100, thus continues executing with step
Rapid S93 and S94.If receive signal intensity be less than threshold value 2, then it represents that time writer 100 apart from the distance of magnetic board 200 compared with
Far, chip does not work on power in the pen of time writer 100, therefore magnetic board 200 is transferred to step S91, into station-keeping mode.
It is understood that the big I of threshold value 1 and threshold value 2 is determined according to actual debugging result, can be equally big,
Can be with different big.In general, chip power up needs the energy to need energy more than normal work in pen.More than institute electric mistake
Journey, which needs to receive energy, reaches certain intensity, but during normal work, required energy may be smaller than this energy, so threshold
Value 1>Threshold value 2.I.e. pen starts after normal work, and it can keep the height of normal work to be omited than entering the height of normal work
It is high.
It will also be appreciated that in station-keeping mode, magnetic board 200 as shown in figure 8, framing signal can be sent always,
Framing signal can also be sent in order to reduce power consumption intermittence.
The magnetic board of present embodiment and the exchange method of time writer, in the pen of time writer chip not on electricity when just can be with
The position of time writer is reported and submitted to superior system, is easy to superior system to track the location track of pen.Simultaneously as being connect by magnetic board
Whether chip works on power in pen of the intensity to judge time writer collected mail number, thus in pen on chip before electricity magnetic board without
Order and/or other pulses (such as ordering A) need to be ceaselessly sent as prior art, only framing signal need to be sent, therefore
Magnetic board can carry out the transmission framing signal of batch (-type) in station-keeping mode, substantially reduce the power consumption of magnetic board 200.Namely
Say, using the magnetic board and the exchange method of time writer of present embodiment, as long as time writer apart from magnetic board farther out, it is fixed to be put into
Bit pattern, and in station-keeping mode can intermittence send framing signal, substantially reduce the power consumption of magnetic board.
Principle that embodiment of above is intended to be merely illustrative of the present and the illustrative embodiments used, but this hair
It is bright to be not limited thereto.For those skilled in the art, the feelings of spirit and substance of the present invention are not being departed from
Under condition, various changes and modifications can be made therein.These variations and modifications are also considered as the guard interval of the present invention.
Claims (6)
1. exchange method of the one kind for time writer (100) and magnetic board (200), the magnetic board (200) is to the time writer
(100) sending signal, the time writer (100) receives the signal that magnetic board (200) is sent, and according to the signal of reception to described
Magnetic board (200) sends feedback signal, it is characterised in that the exchange method includes：
The magnetic board (200) judges chip in the pen of the time writer (100) according to the feedback signal of the time writer (100)
The step of whether starting working；
The step of magnetic board (200) sends data according to judged result superior system, wherein
If the magnetic board (200) judges that chip does not start to work, the magnetic board in the pen of the time writer (100)
(200) framing signal is sent to the time writer (100), and by the time writer (100) included in the feedback signal
Position data is sent to superior system,
If the magnetic board (200) judges that chip is started working in the pen of the time writer (100), the magnetic board
(200) framing signal and command signal, and the electromagnetism that will be included in the feedback signal are sent to the time writer (100)
Related data including the pen button data of (100), pressure sensitivity data, categorical data, position data is sent to superior system；
The magnetic board (200), which judges that the magnetic board (200) superior system is sent, to be included position, button, pressure sensitivity, type and exists
The step of number of times of the related data of the interior time writer (100), wherein
If magnetic board (200) the superior system sends the time writer including position, button, pressure sensitivity, type
(100) number of times of related data is more than setting value, then magnetic board (200) the superior system sends the time writer
(100) position, button, pressure sensitivity data,
If magnetic board (200) the superior system sends the time writer including position, button, pressure sensitivity, type
(100) related data number of times is less than setting value, then the magnetic board (200) continue up grade system send include position, by
The related data of the time writer (100) including key, pressure sensitivity, type.
2. as claimed in claim 1 for time writer (100) and the exchange method of magnetic board (200), it is characterised in that described
Magnetic board (200) judges whether chip starts in the pen of the time writer (100) according to the feedback signal of the time writer (100)
The step of work, includes：
The magnetic board (200) indicates the time writer (100) to the magnetic board to the time writer (100) sending signal
(200) feedback signal including operating state data is sent；
The operating state data of the magnetic board (200) in the feedback signal judges the time writer (100)
Whether chip starts working in pen.
3. exchange method of the one kind for time writer (100) and magnetic board (200), the magnetic board (200) is to the time writer
(100) sending signal, the time writer (100) receives the signal that magnetic board (200) is sent, and according to the signal of reception to described
Magnetic board (200) sends feedback signal, it is characterised in that the exchange method includes：
The magnetic board (200) judges chip in the pen of the time writer (100) according to the feedback signal of the time writer (100)
The step of whether working；
The step of magnetic board (200) selects mode of operation according to judged result, wherein
If the magnetic board (200) judges that chip does not work in the pen of the time writer (100), the magnetic board
(200) station-keeping mode is entered,
If the magnetic board (200) judges that chip is in work, the magnetic board (200) in the pen of the time writer (100)
Into normal mode of operation, wherein
In the station-keeping mode, the magnetic board (200) performs following steps：
The step of magnetic board (200) is to the time writer (100) transmission framing signal；
The magnetic board (200) judges whether chip starts work in the pen of the time writer (100) according to the intensity for receiving signal
The step of making, wherein
If the intensity that the magnetic board (200) receives signal is more than the first given threshold, the time writer (100) is judged
Chip is in work in pen, and the magnetic board (200) enters normal mode of operation,
If the intensity that the magnetic board (200) receives signal is less than the first given threshold, the time writer (100) is judged
Chip is not in work in pen, and the magnetic board (200) is continually maintained in station-keeping mode.
4. as claimed in claim 3 for time writer (100) and the exchange method of magnetic board (200), it is characterised in that in institute
State in normal mode of operation, perform following steps：
The magnetic board (200) sends command signal, framing signal and other corresponding signals to the time writer (100)
Step；
The magnetic board (200) determines the position of the time writer (100), pressure according to the feedback signal of the time writer (100)
Sense, button and categorical data, and superior system sends position, pressure sensitivity, button and the categorical data of the time writer (100)
Step；
The magnetic board (200) judges that whether chip is in work in the pen of the time writer (100) according to the intensity for receiving signal
The step of, wherein
If the intensity that the magnetic board (200) receives signal is more than the second given threshold, the time writer (100) is judged
Chip is in work in pen, and the magnetic board (200) is continually maintained in normal mode of operation,
If the intensity that the magnetic board (200) receives signal is less than the second given threshold, the time writer (100) is judged
Chip is not in work in pen, and the magnetic board (200) enters station-keeping mode.
5. as claimed in claim 4 for time writer (100) and the exchange method of magnetic board (200), it is characterised in that
Second given threshold is less than or equal to first given threshold.
6. as claimed in claim 4 for time writer (100) and the exchange method of magnetic board (200), it is characterised in that
The command signal indicates time writer (100) feedback including the type, pressure sensitivity, button of time writer (100)
Data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410287362.3A CN104049830B (en) | 2014-06-24 | 2014-06-24 | For time writer and the exchange method of magnetic board |
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|---|---|---|---|
| CN201410287362.3A CN104049830B (en) | 2014-06-24 | 2014-06-24 | For time writer and the exchange method of magnetic board |
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| CN104049830A CN104049830A (en) | 2014-09-17 |
| CN104049830B true CN104049830B (en) | 2017-07-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9977519B2 (en) * | 2015-02-25 | 2018-05-22 | Synaptics Incorporated | Active pen with bidirectional communication |
| CN109164926B (en) * | 2018-08-01 | 2021-11-19 | 广州视源电子科技股份有限公司 | Electromagnetic pen control method and system, readable storage medium and electromagnetic pen |
| CN115185389B (en) * | 2022-09-09 | 2022-12-06 | 广州市保伦电子有限公司 | Method, device, storage medium and system for identifying state of pen in lifting and placing process |
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| CN102004566A (en) * | 2010-11-30 | 2011-04-06 | 汉王科技股份有限公司 | Electromagnetic handwritten device |
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| CN102262312A (en) * | 2010-05-26 | 2011-11-30 | 汉王科技股份有限公司 | Liquid crystal display equipment having electromagnetic induction function and control method thereof |
| CN102004566A (en) * | 2010-11-30 | 2011-04-06 | 汉王科技股份有限公司 | Electromagnetic handwritten device |
| CN202939590U (en) * | 2012-10-23 | 2013-05-15 | 北京康迪电子设备有限公司 | Interactive electronic white board |
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Effective date of registration: 20161031 Address after: 100193 Beijing, Haidian District, northeast Wang West Road, building 3, floor 363, room 5, room 8 Applicant after: BEIJING HANVON PENGTAI TECHNOLOGY CO., LTD. Address before: 100193 Beijing city Haidian District Dongbeiwang West Road No. 8 Building Hanvon Applicant before: Hanwang Tech Co., Ltd. |
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Address after: 100193 363, 3 floor, 5 building, 8 Northeast Road, Haidian District, Beijing. Patentee after: Beijing Hanvon Peng Thai Polytron Technologies Inc Address before: 100193 363, 3 floor, 5 building, 8 Northeast Road, Haidian District, Beijing. Patentee before: BEIJING HANVON PENGTAI TECHNOLOGY CO., LTD. |
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