CN104615275A - Character input method and device - Google Patents
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Abstract
The invention discloses a character input method which is used for wearable equipment comprising a processing chip, a touch screen and an acceleration sensor. Both the acceleration sensor and the touch screen are connected with the processing chip. When the input method is started, manual operation is carried out at the peripheral side of the touch screen; at the side of the processing chip, a three-axis acceleration data sequence acquired by the acceleration sensor in the manual operating process is received; according to the acquired three-axis acceleration data sequence, a manual operation characteristic value is obtained; according to the manual operation characteristic value, a control signal mapped with the manual operation characteristic value is obtained; the control signal is executed and an execution result corresponding to the control signal is displayed in the touch screen. According to the character input method, character inputting is carried out by carrying out manual operation at the peripheral side of the touch screen, without carrying out operation on the touch screen, and thus, the technical problem of inconvenience for operation, which is caused by the excessively small touch screen of the wearable equipment, is solved and convenience for character inputting is greatly improved. The invention also discloses a character input device.
Description
Technical field
The present invention relates to wearable device technical field, particularly relate to a kind of character input method and device.
Background technology
Along with the development of electronic technology, body sense recognition technology is more and more applied in smart machine, brings great convenience to the tasks such as conventional communication and information retrieval.
In prior art, the text event detection in smart machine is generally realized, as clicked by user's operation on the touchscreen.In order to support this function, in existing smart machine, obtain outer signals by being located at touch-screen in smart machine and motion sensor obtains.Wherein, touch-screen produces click signal according to the click action of user; Motion sensor comprises gyro sensor, acceleration transducer etc., thus catches user's motor message on the touchscreen.
By obtaining this click signal and motor message, the service routine in smart machine system judges the control action at present to equipment, then performs different input method input instructions according to control action, and this control be the results are shown in touch-screen.
Above-mentioned comparatively conventional in existing hand-held intelligent equipment, but in wearable device, as intelligent watch, because its screen is less, if user carries out clicking of word on the touchscreen, very easily produce and obscure, which substantially increases the possibility of erroneous input.
Summary of the invention
In view of this, the present invention proposes a kind of character input method and device, to solve the problem.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of character input method, and for comprising in the wearable device of process chip, touch-screen and acceleration transducer, described acceleration transducer, described process chip are all connected with described process chip,
When input method starts, carry out manual operation in all sides of touch-screen,
In described process chip side, comprise the following steps:
A1, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation, and reach step a2; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen;
The 3-axis acceleration data sequence that a2, basis collect obtains manual operation eigenwert, and reaches step a3;
A3, obtain the control signal that maps mutually with it according to this manual operation eigenwert, and reach step a4; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described process chip;
A4, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
Alternatively, between step a1 and a2, also comprise step:
A0, pre-service is carried out to the 3-axis acceleration data sequence collected, to remove redundant data, and the 3-axis acceleration data sequence removing redundant data is reached step a2.
Alternatively, the gyro sensor be connected with described process chip is also provided with in described intelligent watch;
In step a1, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values be set,
When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
Alternatively, in step a2, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises:
Any one direction along x-axis or y-axis is equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
Along the both direction of z-axis being respectively equipped with the 3rd contrary acceleration threshold values of direction and the 4th acceleration threshold values;
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the click action along the acceleration direction produced first.
Alternatively, in step a2, be also provided with double-press time threshold values,
In this double-press time threshold values:
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
Alternatively, in step a3, described control signal comprises: Page forward, backward page turning, submission, deletion.
The embodiment of the present invention also provides a kind of input device, it is characterized in that, for comprising in the wearable device of process chip, touch-screen and acceleration transducer, described acceleration transducer, described touch-screen are all connected with described process chip;
Wherein, when input method starts, carry out manual operation in all sides of touch-screen,
This device is located in described process chip, comprising:
Data acquisition unit, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation, and reach operation recognition unit; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen;
The 3-axis acceleration data sequence that operation recognition unit, basis collect obtains manual operation eigenwert, and reaches map unit;
Map unit, according to described manual operation eigenwert, obtain the control signal mapped mutually with it, and reach performance element; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described map unit;
Action execution unit, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
Alternatively, between described data acquisition unit and described operation recognition unit, also comprise:
Pretreatment unit, pre-service is carried out to the 3-axis acceleration data sequence collected, to remove redundant data, and the 3-axis acceleration data sequence removing redundant data is reached operation recognition unit.
Alternatively, the gyro sensor be connected with described process chip is also provided with in described intelligent watch;
In described data acquisition unit, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values be set,
When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
Alternatively, in described operation recognition unit, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises:
Any one direction along x-axis or y-axis is equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
Along the both direction of z-axis being respectively equipped with the 3rd contrary acceleration threshold values of direction and the 4th acceleration threshold values;
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the click action along the acceleration direction produced first.
Alternatively, in described operation recognition unit, be also provided with double-press time threshold values,
In this double-press time threshold values:
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
Alternatively, in described map unit, described control signal comprises: Page forward, backward page turning, submission, deletion.
Beneficial effect of the present invention is, by carrying out in all sides of touch-screen the input that word is carried out in manual operation, and not by operation on the touchscreen, so just, overcome because the technical matters of the too small and inconvenient operation of touch-screen of wearable device, substantially increase the convenience of text event detection.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the character input method of the embodiment of the present invention;
Fig. 2 is the schematic diagram carrying out text event detection in the touch-screen side of intelligent watch of the embodiment of the present invention;
Acceleration change schematic diagram when Fig. 3 is a kind of manual operation of the embodiment of the present invention;
Fig. 4 is the structured flowchart of the input device of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below by way of specific embodiment and see accompanying drawing, the present invention is described in detail.
In order to the touch-screen solving wearable device of the prior art is less, the technical matters not easily directly operated on the touchscreen when input characters, the embodiment of the present invention provides a kind of method of text event detection, as shown in Figure 1, manually to operate the input realizing word.
Particularly, the method of the text event detection of the present embodiment is for comprising in the smart machine of process chip, touch-screen, gyro sensor and acceleration transducer, wherein, described gyro sensor, acceleration transducer, touch-screen are all connected with described process chip.
When input method starts, carry out manual operation in all sides of touch-screen.See the touch-screen 101 shown in Fig. 2, Fig. 2 for being located at common wearing smart machine---a kind of touch-screen on intelligent watch, the present embodiment is just described in detail for it.Wherein, for convenience of description, left and right, the upper and lower side of touch-screen is defined.Wherein, according to use habit, the left and right side of touch-screen is along orientation arm, and the upper and lower side of touch-screen is perpendicular to orientation arm.
Wherein, manual operation includes but not limited to that touch-screen is clicked in left side, touch-screen is clicked on right side, touch-screen is clicked in upside, touch-screen is clicked in downside, touch-screen is double-clicked in left side, touch-screen etc. is double-clicked on right side.
Below the character input method of process chip side is described in detail.Need to illustrate in advance, at software view, the process of this text event detection is exactly be arranged on application on wearable device or background service program by one.This application or background service program are once after installing, will the input state of monitoring users, and obtain the related data of gyro sensor and acceleration transducer, and judge user's gesture motion according to these data, then will judge that the gesture motion obtained is converted into the input command of input method.
In described process chip side, comprise the following steps:
A00, input method procedure start, and user carries out manual operation in all sides of touch-screen.
A1, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen.In the present embodiment, definition is the x-axis of touch-screen in left-right direction, and above-below direction is the y-axis of touch-screen.
User is when carrying out manual operation, the touch-screen of usual intelligent watch there will not be the spinning movement of larger angle, in order to the erroneous judgement preventing user from occurring due to arm large angle pendulum sporadic in input process, in such as user's input process, the wrist posture of intelligent watch is worn in adjustment, or rotates the touch-screen position etc. of intelligent watch.So, the present embodiment needs the angular velocity situation of change of the gyro sensor by judging intelligent watch, namely by three axis angular rate variable condition of gyro sensor under statistics stationary state, and the scope of filtering threshold values is set according to this, determines whether to belong to effective identification maneuver.
In this step a1, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values is set; When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
For the setting of this angular velocity threshold values, those skilled in the art can use according to reality and arrange voluntarily, and the present embodiment just no longer illustrates.
A0, pre-service is carried out, to remove redundant data to the 3-axis acceleration data sequence collected.
Wherein, the pretreated object in this step is the redundant data affecting the identification of manual operation eigenwert in the acceleration information sequence of removal three axle, mainly comprises idle data rejecting, rejecting abnormal data and data smoothing filtering.
Below the processing procedure of redundant data is introduced respectively.
Idle data is rejected: user starts or ending phase in manual operation, there is the stationary state of short time, and meanwhile, user can exist interval and pause in continuous action process, and these data under stationary state are called idle data.Idle data does not comprise any operation information, and be invalid in manually operated identifying, and can have influence on the accuracy of manual operation identification, therefore this part data needs to be filtered rejecting.Idle data is filtered out by arranging wave filter in the present embodiment, under static state the average of acceleration information and variance set by statistics acceleration transducer for the threshold values of wave filter, by arranging the range intervals of acceleration under stationary state, if the acceleration information gathered drops on outside threshold range, then think that these data are normal data, otherwise, then think idle data, need to reject from the acceleration information sequence of three axles.
Rejecting abnormal data: all can produce abnormal data because intelligent watch exists shake and sensor power spread of voltage etc. in motion process, such as when stationary state, accekeration becomes suddenly large, or when motion state, the change of adjacent data becomes suddenly large, this abnormal data has a significant impact for manually operated identification and precision, still adopt Statistics-Based Method to reject these abnormal datas in the present embodiment, in the process of acceleration information collection, statistical study is carried out to historical data, obtain average, then according to certain fluctuation range, obtain corresponding normal data interval.If a certain item drops in this data interval in image data, then think that these data are normal data, otherwise, then think abnormal data, reject from the data sequence generated.
Data smoothing filtering: the shortcoming that the data that acceleration transducer gathers have data level and smooth not usually, therefore needs the smoothing filtering of data to gathering.The method of smothing filtering has a variety of, as median filtering algorithm, sliding window algorithm, Kalman filtering algorithm etc., can adopt any one, or other filtering algorithms.If the data itself that equipment Acceleration sensor gathers are smoother, then this step can be omitted.
The 3-axis acceleration data sequence that a2, basis collect obtains manual operation eigenwert, and reaches step a3;
Consider for same manual operation, the movement range difference (dynamics of promotion varies) of different user, the time continued is different (faster or slower) also, uniquely identical is the directivity of motion and the feature of acceleration concussion change, therefore the directional information of degree of will speed up and the change information of accekeration are as core feature, can eliminate the identical manually operated difference of different people, this feature also reflects different manually operated essential distinction.Meanwhile, when promoting the touch-screen motion of intelligent watch, owing to being subject to pining down of skin friction and intelligent watch watchstrap, can there is the process of repeatedly shaking in intelligent watch on pushing direction.
See in Fig. 3, Fig. 3, horizontal axis plots time T, the longitudinal axis represents acceleration A.In the process that user right is clicked, because the right side stressed short time becomes suddenly large, intelligent watch has the larger accekeration (as Suo Shi A1 point in Fig. 3) of a left direction, when the dislocation of finger joint is from the process of all sides of touch-screen, the acceleration value of left direction can diminish gradually until left direction acceleration is 0, simultaneously, because the watchband being subject to skin friction and intelligent watch pins down, intelligent watch can produce a reciprocal tractive force, thus can obtain a reciprocal accekeration (as Suo Shi A2 point in Fig. 3).So, according to the concussion variation characteristic of the accekeration of intelligent watch after stressed, to the acceleration information sequential extraction procedures acceleration change proper vector of three axles after process, and according to these proper vectors and the predefined acceleration threshold values of manual operation template, determine the manual operation type of generation with this.Wherein, the predefined acceleration threshold values of template independently can carry out action training in advance, according to the data statistics related threshold gathered in training.
In this step a2, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises: on any one direction along x-axis or y-axis, be equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
When considering practical operation, intelligent watch is worn in wrist, and the present embodiment is all operate in all sides of the touch-screen of intelligent watch, can't carry out manual operation initiatively along z-axis.But in order to avoid maloperation, as when accidentally intelligent watch hand being triggered or operated, wrist is not in parallel position etc., so for the acceleration along z-axis, also need to distinguish the 3rd contrary acceleration threshold values of setting direction and the 4th acceleration threshold values.When determining manual operation eigenwert, the acceleration along the both direction of z-axis respectively can not more than the 3rd acceleration threshold values and the 4th acceleration threshold values.Again it should be noted that, owing to not being initiatively obtain along the acceleration of z-axis, but by along the additional generation during manual operation of x or y-axis, so in order to distinguish with the acceleration of x or y-axis, ad hoc 3rd acceleration threshold values and the 4th acceleration threshold values calmly.
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and along the acceleration in the both direction of z-axis more than the 3rd acceleration threshold values and the 4th acceleration threshold values constantly respectively, then corresponding manual operation is the click action along the acceleration direction produced first.
In addition, in this step a2, be also provided with double-press time threshold values.In this double-press time threshold values: if exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
For example, the first acceleration threshold values arranged along x-axis forward is 5m/s
2, the second acceleration threshold values of negative sense is 3m/s
2; The first acceleration threshold values along y-axis forward is 5m/s
2, the second acceleration threshold values of negative sense is 3m/s
2; The 3rd acceleration threshold values along z-axis forward is 1m/s
2, the 4th acceleration threshold values of negative sense is 1m/s
2.If now along the click action of x-axis forward, when its satisfied acceleration first along x-axis forward is more than 5m/s
2, and the acceleration along x-axis negative sense caused due to inertia is no more than 3m/s
2, be no more than the 3rd acceleration threshold values 1m/s respectively along z-axis forward and negative sense
2with the 4th acceleration threshold values 1m/s
2, then just can think that the manual operation of this correspondence is the click action along x-axis forward.
All the other actions are just illustrated no longer one by one and are repeated.
In the present embodiment, double-press time threshold values can be set to 0.5s.
A3, obtain the control signal that maps mutually with it according to this manual operation eigenwert, and reach step a4; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described process chip.
In the present embodiment, the control signal prestoring often kind of manual operation eigenwert mapping in process chip comprises:
Touch-screen is clicked in left side, the control signal of mapping is that cursor moves right;
Touch-screen is double-clicked in left side, the control signal of mapping is candidate word page turning backward;
Touch-screen is clicked on right side, the control signal of mapping is that cursor is moved to the left;
Touch-screen is double-clicked on right side, the control signal of mapping is candidate word Page forward;
Touch-screen is clicked in upside, the control signal of mapping is the candidate word of deleting current selected;
Touch-screen is clicked in downside, the control signal of mapping is submit the candidate word of current cursor indication to.
Certainly, be not restricted to the defining mode of above-mentioned control signal during actual use, user can be arranged voluntarily according to concrete service condition.
In addition, it should be noted that, manual operation can be closed in the arranging of input method by Menu key.
A4, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
Alternatively, the method for the present embodiment also can realize in secondary combined manual operation on the touchscreen.For the manual operation on touch-screen, those skilled in the art can obtain according to existing disclosed technology completely, and the present embodiment just repeats no more.
By above-mentioned visible, the method of the text event detection of the present embodiment is by carrying out in all sides of touch-screen the input that word is carried out in manual operation, and not by operation on the touchscreen, so just, overcome because the technical matters of the too small and inconvenient operation of touch-screen of wearable device, greatly provide the convenience of text event detection.
It is more than the method for the text event detection of the embodiment of the present invention.Below by the device of introduction text event detection corresponding thereto.
The embodiment of the present invention also provides a kind of device of text event detection, as shown in Figure 4, for comprising in the wearable device of process chip, touch-screen, gyro sensor and acceleration transducer, gyro sensor, acceleration transducer, described touch-screen are all connected with process chip
Wherein, when input method starts, carry out manual operation in all sides of touch-screen,
This device is located in described process chip, comprises the data acquisition unit, data pre-processing unit, operation recognition unit, map unit and the action execution unit that connect successively.
Wherein,
Data acquisition unit, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation, and reach pretreatment unit; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen.In the present embodiment, definition is the x-axis of touch-screen in left-right direction, and above-below direction is the y-axis of touch-screen.
In described data acquisition unit, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values is set;
When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
Pretreatment unit, pre-service is carried out to the 3-axis acceleration data sequence collected, to remove redundant data, and the 3-axis acceleration data sequence removing redundant data is reached operation recognition unit.
Wherein, the object that pretreatment unit is arranged is the redundant data affecting the identification of manual operation eigenwert in the acceleration information sequence of removal three axle, mainly comprises idle data rejecting, rejecting abnormal data and data smoothing filtering.Wherein, the concrete process about redundant data is described in detail in the part of said method, so just no longer launch to describe at this.
The 3-axis acceleration data sequence that operation recognition unit, basis collect obtains manual operation eigenwert, and reaches map unit.
Wherein, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises: on any one direction along x-axis or y-axis, be equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
When considering practical operation, intelligent watch is worn in wrist, and the present embodiment is all operate in all sides of the touch-screen of intelligent watch, can't carry out manual operation initiatively along z-axis.But in order to avoid maloperation, as when accidentally intelligent watch hand being triggered or operated, wrist is not in parallel position etc., so for the acceleration along z-axis, also need to distinguish the 3rd contrary acceleration threshold values of setting direction and the 4th acceleration threshold values.When determining manual operation eigenwert, the acceleration along the both direction of z-axis respectively can not more than the 3rd acceleration threshold values and the 4th acceleration threshold values.Again it should be noted that, owing to not being initiatively obtain along the acceleration of z-axis, but by along the additional generation during manual operation of x or y-axis, so in order to distinguish with the acceleration of x or y-axis, ad hoc 3rd acceleration threshold values and the 4th acceleration threshold values calmly.
3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises:
Any one direction along x-axis or y-axis is equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
Along the both direction of z-axis being respectively equipped with the 3rd contrary acceleration threshold values of direction and the 4th acceleration threshold values;
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the click action along the acceleration direction produced first.
Further, in described operation recognition unit, double-press time threshold values is also provided with.
In this double-press time threshold values: if exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
In the present embodiment, double-press time threshold values can be set to 0.5s.
Map unit, according to described manual operation eigenwert, obtain the control signal mapped mutually with it, and reach performance element; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described map unit.
In the present embodiment, the control signal prestoring often kind of manual operation eigenwert mapping in process chip comprises:
Touch-screen is clicked in left side, the control signal of mapping is that cursor moves right;
Touch-screen is double-clicked in left side, the control signal of mapping is candidate word page turning backward;
Touch-screen is clicked on right side, the control signal of mapping is that cursor is moved to the left;
Touch-screen is double-clicked on right side, the control signal of mapping is candidate word Page forward;
Touch-screen is clicked in upside, the control signal of mapping is the candidate word of deleting current selected;
Touch-screen is clicked in downside, the control signal of mapping is submit the candidate word of current cursor indication to.
Certainly, be not restricted to the defining mode of above-mentioned control signal during actual use, user can be arranged voluntarily according to concrete service condition.
In addition, it should be noted that, manual operation can be closed in the arranging of input method by Menu key.
Action execution unit, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
Alternatively, the present embodiment also can realize in secondary combined manual operation on the touchscreen.For the manual operation on touch-screen, those skilled in the art can obtain according to existing disclosed technology completely, and the present embodiment just repeats no more.
By above-mentioned visible, the device of the text event detection of the present embodiment is by carrying out in all sides of touch-screen the input that word is carried out in manual operation, and not by operation on the touchscreen, so just, overcome because the technical matters of the too small and inconvenient operation of touch-screen of wearable device, greatly provide the convenience of text event detection.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (12)
1. a character input method, for comprising in the wearable device of process chip, touch-screen and acceleration transducer, described acceleration transducer, described process chip are all connected with described process chip, it is characterized in that,
When input method starts, carry out manual operation in all sides of touch-screen,
In described process chip side, comprise the following steps:
A1, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation, and reach step a2; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen;
The 3-axis acceleration data sequence that a2, basis collect obtains manual operation eigenwert, and reaches step a3;
A3, obtain the control signal that maps mutually with it according to this manual operation eigenwert, and reach step a4; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described process chip;
A4, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
2. character input method according to claim 1, is characterized in that, between step a1 and a2, also comprises step:
A0, pre-service is carried out to the 3-axis acceleration data sequence collected, to remove redundant data, and the 3-axis acceleration data sequence removing redundant data is reached step a2.
3. character input method according to claim 1, is characterized in that, is also provided with the gyro sensor be connected with described process chip in described intelligent watch;
In step a1, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values be set,
When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
4. character input method according to claim 1, is characterized in that, in step a2, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises:
Any one direction along x-axis or y-axis is equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
Along the both direction of z-axis being respectively equipped with the 3rd contrary acceleration threshold values of direction and the 4th acceleration threshold values;
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the click action along the acceleration direction produced first.
5. character input method according to claim 4, is characterized in that, in step a2, is also provided with double-press time threshold values,
In this double-press time threshold values:
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
6. character input method according to claim 1, is characterized in that, in step a3, described control signal comprises: Page forward, backward page turning, submission, deletion.
7. an input device, is characterized in that, for comprising in the wearable device of process chip, touch-screen and acceleration transducer, described acceleration transducer, described touch-screen are all connected with described process chip;
Wherein, when input method starts, carry out manual operation in all sides of touch-screen,
This device is located in described process chip, comprising:
Data acquisition unit, receive the acceleration information sequence of three axles that described acceleration transducer collects when described manual operation, and reach operation recognition unit; Wherein, described three axles are respectively along perpendicular to the z-axis of described touch-screen and orthogonal and be all parallel to x-axis and the y-axis of described touch-screen;
The 3-axis acceleration data sequence that operation recognition unit, basis collect obtains manual operation eigenwert, and reaches map unit;
Map unit, according to described manual operation eigenwert, obtain the control signal mapped mutually with it, and reach performance element; Wherein, the control signal that often kind of manual operation eigenwert maps is prestored in described map unit;
Action execution unit, perform described control signal, and will the results are shown in touch-screen corresponding to this control signal be performed.
8. input device according to claim 7, is characterized in that, between described data acquisition unit and described operation recognition unit, also comprises:
Pretreatment unit, pre-service is carried out to the 3-axis acceleration data sequence collected, to remove redundant data, and the 3-axis acceleration data sequence removing redundant data is reached operation recognition unit.
9. input device according to claim 7, is characterized in that, is also provided with the gyro sensor be connected with described process chip in described intelligent watch;
In described data acquisition unit, receive the three axis angular rate data sequences that described gyro sensor collects when described manual operation, and angular velocity threshold values be set,
When the angular velocity of any axle exceedes this angular velocity threshold values, stop gathering described 3-axis acceleration data sequence; And after the angular velocity of this any axle is lower than angular velocity threshold values, restart to gather described 3-axis acceleration data sequence.
10. input device according to claim 7, is characterized in that, in described operation recognition unit, the 3-axis acceleration data sequence according to collecting obtains manual operation eigenwert, specifically comprises:
Any one direction along x-axis or y-axis is equipped with the first acceleration threshold values, and the second acceleration threshold values contrary with its direction;
Along the both direction of z-axis being respectively equipped with the 3rd contrary acceleration threshold values of direction and the 4th acceleration threshold values;
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is contrary and more than the second acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the click action along the acceleration direction produced first.
11. input devices according to claim 10, is characterized in that, in described operation recognition unit, are also provided with double-press time threshold values,
In this double-press time threshold values:
If exceed described first acceleration threshold values along the acceleration that any one direction of x-axis or y-axis produces first, any one direction of acceleration and this that second time produces is identical and also more than the first acceleration threshold values, and during along the acceleration in the both direction of z-axis respectively more than the 3rd acceleration threshold values and the 4th acceleration threshold values, then corresponding manual operation is the double-click action along the acceleration direction produced first.
12. input devices according to claim 7, is characterized in that, in described map unit, described control signal comprises: Page forward, backward page turning, submission, deletion.
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