CN102339149A - Space mouse and control method thereof - Google Patents
Space mouse and control method thereof Download PDFInfo
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- CN102339149A CN102339149A CN2011103289217A CN201110328921A CN102339149A CN 102339149 A CN102339149 A CN 102339149A CN 2011103289217 A CN2011103289217 A CN 2011103289217A CN 201110328921 A CN201110328921 A CN 201110328921A CN 102339149 A CN102339149 A CN 102339149A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
- H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960705—Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/96071—Capacitive touch switches characterised by the detection principle
- H03K2217/960725—Charge-transfer
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Abstract
The invention discloses a space mouse and a control method thereof. The space mouse comprises a touch button structure and a control device; the touch button structure comprises a metal touch panels on which a plurality of metal buttons are arranged, the buttons are insulated from the touch panel by virtue of an insulating layer, the touch panel is grounded; a detecting plate under the touch panel is provided with a plurality of electrodes corresponding to the buttons in position, the detecting plate is insulated from the touch panel; the control device is connected with each electrode on the detecting plate to detect a charge transfer condition of each electrode so as to obtain a corresponding charge sample value, the corresponding charge sample value is used for identifying the touch operation, and an identification control signal is generated according to an identification result so as to control the operation of the space mouse. The space mouse has good restraint effect in a sensing range, and avoids the interference of adjacent buttons in touch recognition.
Description
Technical field
The present invention relates to the touch sensing technology, particularly a kind of space mouse and control method thereof.
Background technology
At present, the mouse apparatus on the market can be divided into two kinds according to the principle difference of its running, first roller-ball mouse, and another kind then is an optical mouse.Wherein, roller-ball mouse is to utilize the sensing position of the vernier that moving direction and the path of conversion spin on desktop of being placed or plane come to be shown in the control computer system; Optical mouse then is that the reflection case of utilizing the light produced on desktop or plane, to be caused is carried out its control.Yet present mouse apparatus major part still adopts the traditional mechanical press-key structure, has influenced user's use experience.
In fact, gradually adopted in the market the touch sensible button to substitute the traditional mechanical button.Wherein, the design of capacitance type touch key also is that touch sensible is by a focus in the key technology.
The capacitance type touch key system that generally uses now all is to use the material of plastics as touch panel, and general containing metal composition not is in order to avoid cause the triggering of dislocation.Have pcb board (printed circuit board) inductive disks under the said plastic front board,, just can trigger button, to realize touch control operation through touching the plastic front board directly over the pcb board inductive disks.Yet; For existing capacitance type touch key system; If panel material adopts metal material or panel material containing metal composition, then touch in any position of panel and all will trigger button, this just can't discern certain triggering once is to belong to which button; Thereby will cause the touch operation mistake, influence user's use.
Therefore, how in the touch key-press structure of space mouse, to realize adopting the panel of metal material or containing metal composition, and reach the purpose of accurate recognizing touch operation, just become technical problem demanding prompt solution.
Summary of the invention
The present invention provides a kind of space mouse and control method thereof that adopts the panel of metal material or containing metal composition, to improve the accuracy of touch recognition.
For addressing the above problem, the present invention provides a kind of space mouse, comprising: touch key-press structure and control device,
Said touch key-press structure comprises: the metal touch panel, have a plurality of metal key-press on the said touch panel, and isolate said touch panel ground connection between said button and said touch panel through insulation course; Detecting plate under the said touch panel has a plurality of electrodes corresponding with key position on the said detecting plate, insulation is isolated between said detecting plate and said touch panel, and the zone between said a plurality of buttons and counter electrode constitutes capacity plate antenna;
Said control device links to each other with each electrode on the said detecting plate; Detect electric charge transfer case on each electrode to obtain corresponding electric charge sample value; Said touch operation is discerned; And produce the identification control signal to control the operation of said space mouse according to recognition result, wherein, said detection comprises:
When the touch key-press structure faced touch or closes on touch, the corresponding voltage of total amount of electric charge that record shifts from each electrode reached the number of times of reference voltage;
The number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value.
Alternatively, said control device comprises:
A plurality of specific capacitances, respectively with the touch key-press structure in each electrode pair should be connected;
A plurality of voltage detecting and comparing unit with the corresponding connection of said a plurality of specific capacitances, detect corresponding specific capacitance voltage respectively, when said specific capacitance voltage reaches reference voltage, and the output count signal;
Counting unit connects a plurality of voltage detecting and comparing unit, the count signal of each voltage detecting and comparing unit output is counted, and the count value of the count signal of each voltage detecting and comparing unit output is sent to the discriminance analysis unit;
The discriminance analysis unit faces in said touch key-press structure as each electrode corresponding key with the count value of the count signal of each voltage detecting and comparing unit output and to touch or close on the electric charge sample value when touching; The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value; Said identifying information is sent to operation control unit;
Operation control unit receives said identifying information, and produces the identification control signal to control the operation of said space mouse according to the said preset function that is identified as the button that is touched.
Alternatively, said space mouse also comprises: be positioned at the light source of a plurality of buttons below, said light source links to each other with control device;
The material of said insulation course is a transparent insulation material;
Said control device less than near the induction threshold value and greater than the touch sensible threshold value time, is opened the said light source of said button below in the electric charge sample value of each button.
Alternatively, said control device also comprises: the induction threshold adjustment unit, receive the electric charge sample value that the discriminance analysis unit calculates, and according to the long-term average adjustment touch sensible threshold value of electric charge sample value in the schedule time with near the induction threshold value; Be sent to said discriminance analysis unit with adjusted touch sensible threshold value with near the induction threshold value.
The present invention also provides the control method of a kind of space mouse, comprising: when the touch key-press structure of space mouse faced touch or closes on touch, the corresponding voltage of total amount of electric charge that the control device record shifts from each electrode reached the number of times of reference voltage;
The number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value;
The control device of space mouse is according to the said operation that is identified as the preset function control space mouse of the button that is touched.
Alternatively, the control method of said space mouse also comprises: when the electric charge sample value less than near the induction threshold value and during greater than the touch sensible threshold value, open the light source of corresponding key below.
Alternatively, said touch sensible threshold value and the said long-term average that all is associated with electric charge sample value in the schedule time near the induction threshold value.
Compared with prior art, technique scheme disclosed space mouse and control method thereof have the following advantages at least:
1) the space mouse of present technique scheme has the metal touch panel, through isolating through insulation course with said metal touch panel ground connection and with a plurality of buttons on the metal touch panel, makes said a plurality of button be able to mutual differentiation.And, because metal touch panel ground connection, have only when user's finger and just can trigger button by to metal key-press the time, do not have any response between adjacent two keys, the binding effect of induction range is also better, has avoided the interference of adjacent key when touch recognition.
And, when touch action takes place, calculate owing to touch the standard that the charge transfer quantity that produces is used as recognizing touch operation.Therefore, feasible more accurate for the touch recognition of touch action.
And the touch recognition of above-mentioned space mouse has realized the touch key-press structure of zero pressure in fact, has promoted the experience of user when the usage space mouse.
2) in the possibility; Said space mouse can also comprise a plurality of light sources that are positioned at each button below; The electric charge sample value that detects each button when the control device of space mouse is less than near the induction threshold value and greater than the touch sensible threshold value time, and said control device can be controlled the unlatching of its light source, makes the user in the environment of dark, can see each button clearly; Thereby increased user's operating experience, improved user's use experience further.
3) in the possibility; The control device of said space mouse can also comprise the induction threshold adjustment unit; Make touch sensible threshold value and can follow the variation of environment and change near the induction threshold value; And then make and can detect the triggering near sense events and touch sensible incident more accurately when said space mouse is in complex environment, improved user's experience further.
Description of drawings
Fig. 1 is the structural representation of space of the present invention mouse;
Fig. 2 is the schematic top plan view of a kind of embodiment of touch key-press structure in the mouse of space of the present invention;
Fig. 3 is the cross-sectional schematic of touch key-press structure shown in Figure 2 along the A-A direction;
Fig. 4 uses a kind of implementation procedure synoptic diagram that space of the present invention mouse carries out touch recognition;
Fig. 5 uses a kind of realization synoptic diagram that space of the present invention mouse carries out touch recognition;
Fig. 6 in touch recognition process shown in Figure 5, the simple and easy synoptic diagram that the specific capacitance of electric charge in control device shifts.
Embodiment
Be elaborated for space mouse and control method thereof respectively below in conjunction with embodiment and accompanying drawing.
Embodiment one
As shown in Figure 1, in the present embodiment, the space mouse comprises touch key-press structure and control device.
Referring to figs. 2 and 3; A kind of embodiment of said touch key-press structure comprises: metal touch panel 100; Have a plurality of metal key-press 1～5 on the said metal touch panel 100; 100 of said metal key-press and said metal touch panels pass through insulation course 200 and isolate said metal touch panel 100 ground connection;
Detecting plate under the said metal touch panel 100 has a plurality of electrode A～Es corresponding with key position on the said detecting plate, 100 insulation of said detecting plate and said metal touch panel are isolated; Zone between said a plurality of button and counter electrode constitutes capacity plate antenna.
Among the embodiment of above-mentioned touch key-press structure, each button and metal touch panel 100 are isolated, formed the independently a plurality of buttons in key position separately through insulation course.And through with metal touch panel 100 ground connection, have only when user's finger and just can trigger button by to metal key-press the time, not having any response between adjacent two metal key-press, the binding effect of induction range is also better.
And when user's finger touch was on metal key-press, electric charge will some be escaped through human body, and carried out electric charge via the corresponding electrode of metal key-press and shift, thereby shifted the touch recognition that realizes said metal key-press through detecting electric charge.This shows that above-mentioned touch key-press structure has realized the touch key-press structure of zero pressure in fact, the user need not firmly to push said metal key-press just can be detected the touch behavior comparatively exactly, thereby has promoted user's use experience.
In concrete embodiment, the touch face of said metal key-press can be concordant with said metal touch panel 100, also can be higher or lower than said metal touch panel 100.
In concrete embodiment, said metal key-press and said metal touch panel 100 can adopt commaterial, to practice thrift manufacturing cost and to optimize manufacturing process.For example, the material of said metal key-press and said metal touch panel 100 all can be copper.When reality is made, can form metal touch panel 100 earlier, and size and the distribution of key position by each button punched on said metal touch panel 100, the pore size of punching should be greater than the size of each button.Subsequently, form each metal key-press again, and each metal key-press and metal touch panel 100 are carried out fixing after the contraposition, fill insulant forms insulation course 200 to isolate in the gap of each metal key-press and metal touch panel 100.
In concrete embodiment, each metal key-press can be the solid metal dish.The shape of then said solid metal dish can be for being fit to the shape of said touch key-press structure arbitrarily, and for example circle or square does not limit with this here.
In concrete embodiment, each metal key-press also can be metallic characters, and then said metal key-press can be realized touch detecting and the prompting keypress function simultaneously, need not on metal touch panel 100 silk-screen button character again again.
In concrete embodiment, the material of said insulation course 200 can be glass, perhaps also can be other known various insulating material.Said electrode is a Copper Foil, perhaps also can be other known various conductive materials.
Need to prove that the button on the said metal touch panel 100 is 5 and is merely for example, do not tackle its implementation and limit.The number of said button and the distribution of function can be according to the touch function of the required realization of reality relative set, for example, in other embodiment, the button on the said metal touch panel 100 can be 8,20 or more.
In addition, the touch function that can preestablish a certain button (for example, button 1) in the present embodiment is the start-up space mouse, then after said button 1 is touched, just can said space mouse be started; Otherwise if said button 1 is not touched, the space mouse then can not be activated.Like this; The user is in practical operation; Have only through touch key-press 1 and could realize startup said space mouse; Touch other buttons and can not cause interference the startup of space mouse, thereby the maloperation that can avoid the user in practical application, to produce effectively, and reduced the energy loss that maloperation causes effectively.
Need to prove that in the present embodiment, what the startup function button of space mouse adopted is that metal touches press-key structure, but it should not limit protection scope of the present invention.In other embodiments; Can also adopt other press-key structures; For example air button, mechanical key or the like, this press-key structure is connected with control device, has the space mouse when starting the function button structure and being triggered (pressing) when control device detects; Can produce the control signal of start-up space mouse equally, to start said space mouse.
Explanation through above-mentioned touch key-press structure can be seen; In the time will operating to said touch key-press structure; User's finger is not directly to touch charged electrode to realize to the influence of the quantity of electric charge in the charge accumulation area, but has contacted metal key-press.
The principle that causes above-mentioned situation to occur is, when each electrode has produced the source electric field separately after charging, said source electric field is an electrostatic field, and forms charge accumulation area at each electrode surface.When user's finger touches metal key-press, can make said Electric Field Distribution change, cause the transfer of electric charge in the charge accumulation area, thereby variation has taken place in the quantity of electric charge in the charge accumulation area.
This shows, change, generally just can think that touch operation has taken place said electrode corresponding key in case the violent quantity of electric charge has taken place in the charge accumulation area of certain electrode.Thereby; Just can obtain button in the quantity of electric charge sample value that faces charge accumulation area corresponding when touching based on this situation, and definite electric charge sample value is the generation of touch event less than the situation of touch sensible threshold value through charge accumulation area being carried out mode that electric charge replenishes.
Correspondingly; The control device of space mouse links to each other with each electrode on the said detecting plate; Detect electric charge transfer case on each electrode to obtain corresponding electric charge sample value, said touch operation is discerned, and produced the identification control signal to control the operation of said space mouse according to recognition result; Wherein, said detection comprises:
When the touch key-press structure faced touch or closes on touch, the corresponding voltage of total amount of electric charge that record shifts from each electrode reached the number of times of reference voltage;
The number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value.
Said control device comprises: a plurality of specific capacitances, a plurality of voltage detecting and comparing unit, counting unit, discriminance analysis unit, operation control unit, wherein,
A plurality of specific capacitances, respectively with the touch key-press structure in each electrode pair should be connected;
A plurality of voltage detecting and comparing unit with the corresponding connection of said a plurality of specific capacitances, detect corresponding specific capacitance voltage respectively, when said specific capacitance voltage reaches reference voltage, and the output count signal;
Counting unit connects a plurality of voltage detecting and comparing unit, the count signal of each voltage detecting and comparing unit output is counted, and the count value of the count signal of each voltage detecting and comparing unit output is sent to the discriminance analysis unit;
The discriminance analysis unit faces in said touch key-press structure as each electrode corresponding key with the count value of the count signal of each voltage detecting and comparing unit output and to touch or close on the electric charge sample value when touching; The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value; Said identifying information is sent to operation control unit;
Operation control unit receives said identifying information, and produces the identification control signal to control the operation of said space mouse according to the said preset function that is identified as the button that is touched.
Correspondingly, with reference to shown in Figure 4, a kind of embodiment of the control method of space of the present invention mouse comprises:
Step s1, when the touch key-press structure of space mouse faced touch or closes on touch, the corresponding voltage of total amount of electric charge that the control device record shifts from each electrode reached the number of times of reference voltage;
Step s2, the number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
Step s3 is identified as the button that is touched with the electric charge sample value less than the button of touch sensible threshold value;
Step s4, the control device of space mouse is according to the said operation that is identified as the preset function control space mouse of the button that is touched.
Particularly; In the present embodiment; The touch function of button 1 is preset as the start-up space mouse, and the electric charge sample value of working as button 1 correspondence so is less than the touch sensible threshold value, and then said button 1 is identified as the button that is touched; The output unit of said control device is realized the operation to the space mouse based on said identifying information, is about to said space mouse and starts.
Wherein, Before carrying out said touch recognition; Also need carry out some initialization procedures, comprise: detection background ambient signal, the extraneous signal of shielding first frequency (being 80KHz in the present embodiment) to second frequency (being 120KHz in the present embodiment); Behind the signal in detecting said first frequency to second frequency scope, produce trigger pip.Said trigger pip triggers said touch recognition process.
Fig. 5 shows a kind of realization synoptic diagram of the control method of space of the present invention mouse; In the touch key-press structure of said space mouse; The material of metal touch panel and button is copper; The material of the insulation course between button and metal touch panel is a glass, and the electrode corresponding with key position is Copper Foil on the detecting plate.
When finger touch or close on when touching on the copper film a certain button, electric charge will some be escaped through human body, and produces electric charge via the corresponding Copper Foil of said key position and shift.For the situation of learning that said electric charge shifts, can adopt the means of voltage detecting.
With reference to shown in Figure 6, can each Copper Foil in the said touch key-press structure be linked to each other with said control device, include a plurality of specific capacitances in the said control device, each Copper Foil respectively with said control device in the corresponding connection of a specific capacitance.As aforementioned, when finger touch or close on when touching on the copper film a certain button, the electric charge of escaping from human body is understood some and is produced electric charge via said Copper Foil and shift.And because specific capacitance has existed with said Copper Foil and has been electrically connected, electric charge will shift by the specific capacitance in control device, and this process promptly is equivalent to the specific capacitance in the control device is charged.Because the voltage at electric capacity two ends is easy to record, therefore can detect the situation that electric charge shifts that obtains through voltage to the specific capacitance two ends.
Particularly, adopt the less specific capacitance of electric capacity, can adopt the electric capacity of pF level usually, for example 0.5pF.Like this, specific capacitance is full of by the electric charge that shifts from Copper Foil with regard to being easier to.Based on this, through voltage detecting in the control device and comparing unit, the voltage (reference voltage) at two ends compared when the voltage at specific capacitance two ends and said specific capacitance were full of, and just can learn whether said specific capacitance is full of.Because finger touch or close on touches on the copper film in a certain button process, the electric charge that shifts via said Copper Foil possibly be full of required electric charge greater than specific capacitance, and a plurality of discharge circuits corresponding with specific capacitance quantity also can be set in control device.When voltage detecting in control device and comparing unit detected the specific capacitance voltage and reach reference voltage, said discharge circuit just started the discharge to specific capacitance.Because the electric capacity of specific capacitance is less, therefore also be easier to, and then the discharge required time seldom by said discharge circuit rapid discharge.Thereby, can guarantee the accuracy of whole touch recognition process.After to the specific capacitance discharge, specific capacitance will be full of by the electric charge that shifts via Copper Foil again, will experience discharge once more subsequently again, and this process circulates until finger touch always or closes on the release that touches a certain button on the copper film.
Because voltage detecting and comparing unit can be exported count signal when the specific capacitance voltage reaches reference voltage, then at above-mentioned finger touch or close on touch action when finishing, voltage detecting and comparing unit will be exported a plurality of count signals.Based on this, just can record the count value of corresponding count signal through the counting unit in the control device, said count value just can be used as said touch key-press structure and faces the electric charge sample value that touches or close on respective keys when touching.
After obtaining the corresponding electric charge sample value of each button, just can analyze through the discriminance analysis unit in the control device, the electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value.Thereby, accomplish this touch recognition process.
Embodiment two
In the present embodiment, with respect to previous embodiment one, said space mouse also comprises: be positioned at the light source of a plurality of buttons below, said light source links to each other with control device;
The material of said insulation course is a transparent insulation material;
Said control device less than near the induction threshold value and greater than the touch sensible threshold value time, is opened the said light source of said button below in the corresponding electric charge sample value of each button.
In the present embodiment; Light source has been set up in the button below of said space mouse; The electric charge sample value that detects a certain button when control device is less than near the induction threshold value and greater than the touch sensible threshold value time, and actual situation about taking place is a user's finger during near said space mouse, opens light source through control device this moment and just can make the user in the environment of dark, see each button clearly; Strengthen user's operating experience, further improved user's use experience.
In addition, after said control device is being discerned the button that obtains to be touched, can also lighten the light source of the said button below that is touched; Thereby when the user touches certain button; Can the light at this place, key position is brighter, with the prompting button, make user's operating experience further obtain to strengthen.
Below the control method of space mouse in the present embodiment is further specified.The control method of present embodiment can realize when user finger during near the touch key-press structure of space mouse and touch key-press said light source being carried out corresponding control.
Describe for convenient, user's finger is defined as near sense events near the corresponding situation of touch key-press structure triggers, situation corresponding during with user's finger touch button is defined as the touch sensible Event triggered; Said touch sensible threshold value is preset as first predetermined value, is preset as second predetermined value with said near the induction threshold value, said first predetermined value and second predetermined value are fixed value.
Specifically, when user finger during near a certain button of said metal touch panel, electric charge will some be escaped through human body.And this moment, said control device will detect consequent electric charge transfer case, obtains the number of times that the corresponding specific capacitance of this button is filled, and the said number of times that is filled is pointed near the electric charge sample value in the process as the user.Thereby said control device just can carry out the judgement near sense events.Usually, accurate near the judgement of sense events for making, said control device can be judged based on a plurality of electric charge sample datas, to obtain result of determination.
For example, the electric charge sample value of continuous 8 acquisitions satisfies:
T
th＜CS＜P
th (1)
Then, said control device is judged near the sense events triggering, is carried out the operation of above-mentioned unlatching light source.Wherein, CS is the electric charge sample value of each time, P
ThBe near induction threshold value, T
ThIt is the touch sensible threshold value.
Certainly, not merely be that the user points near the touch key-press structure owing to causing the reason that electric charge changes in the above-mentioned charge accumulation area, possibly also have the influence of other environmental disturbances.In order to obtain result of determination more accurately, can comprehensively judge more frequently come final obtain near the triggering of sense events whether corresponding the situation of user's finger near the touch key-press structure.For example; The electric charge sample value of aforementioned continuous 8 acquisitions is satisfied the back result of determination that obtains of formula (1) as the preliminary judgement result;, continuous 5 times preliminary judgement result triggers the situation of user's finger that then definite triggering near sense events is corresponding if all showing near sense events near the touch key-press structure.At this moment, open the light source that is positioned at a plurality of buttons below by said control device, so that the user sees each button clearly in the environment of dark.And it is follow-up in order to guarantee to the accuracy of user's finger to the touch recognition of button; Said control device can stop the detection to the electric charge transfer case; Promptly forbid the induction channels that the metal touch panel is corresponding; So that the current potential of metal decking is reattached to earthing potential, guarantee that keypress function normally uses.
When the user points continuation near the metal touch panel during until one or more button of finally touching on the metal decking, said control device can carry out corresponding touch recognition, after identification obtains to be touched button, lightens the light source of the said button below that is touched.Similar near sense events with aforementioned judgement, for making the judgement of touch sensible incident accurate, said control device also can be judged based on a plurality of electric charge sample value data, to obtain result of determination.
For example, the electric charge sample value of continuous 8 acquisitions satisfies:
CS＜T
th (2)
Then, said control device is judged the touch sensible Event triggered, lightens the operation of the light source of the said button below that is touched.Wherein, CS still representes the electric charge sample value of each time, T
ThStill represent the touch sensible threshold value.
Further, in order to obtain result of determination more accurately, the situation of the said touch key-press structure of user's finger touch that comprehensively whether the triggering of the next final acquisition touch sensible incident of judgement more frequently is corresponding.For example; The electric charge sample value of aforementioned continuous 8 acquisitions is satisfied the back result of determination that obtains of formula (2) as the preliminary judgement result; If continuous 5 times preliminary judgement result all shows the touch sensible Event triggered, the situation of the said touch key-press structure of user's finger touch that then triggering of definite touch sensible incident is corresponding.
When touch accomplishing, user's finger is during gradually away from said touch key-press structure, and electric charge sample value (CS) also begins slowly to raise.When the electric charge sample value satisfies:
CS>=(T
Th+ LTA) * 75% o'clock,
Then, said control device judges that touch sensible stops, and recovers the brightness before the said light source that is touched the button below lightens.Wherein, when LTA (Long Term Average) expression does not trigger any condition, the long-term average of said electric charge sample value.And the parameter 75% when judging also can be adjusted to other numerical value, for example 87.5%, and mainly look environment the noise effect of said touch key-press structure is decided.
Along with the said further away from each other touch key-press structure of user's finger, the electric charge sample value continues to raise, when the electric charge sample value satisfies:
CS>=(P
Th+ LTA) * 75% o'clock,
Then, said control device is judged near induction also termination, and the light source of closing all buttons belows, is in the state of the said electric charge sample value of monitoring again, and correspondingly opens or lighten light source according to above-mentioned trigger condition.
Need to prove; In the present embodiment; Said touch sensible threshold value is preset as first predetermined value, said approaching induction threshold value is preset as second predetermined value is merely for example, and shall not be applied to restriction protection scope of the present invention; In other embodiments, can also be preset to other fixed value according to the actual requirements with said touch sensible threshold value with near the induction threshold value.
Embodiment three
In the present embodiment; With respect to previous embodiment two; The control device of said space mouse also comprises: the induction threshold adjustment unit; Receive the electric charge sample value that the discriminance analysis unit calculates, and according to the long-term average adjustment touch sensible threshold value of electric charge sample value in the schedule time with near the induction threshold value; Be sent to said discriminance analysis unit with adjusted touch sensible threshold value with near the induction threshold value.
Said induction threshold adjustment unit comprises: data acquisition unit, and gather the electric charge sample value in the given time, and calculate the long-term average of electric charge sample value; Export the long-term average of said electric charge sample value to induction threshold calculations unit;
Induction threshold calculations unit calculates said reception induction threshold value and touch sensible threshold value according to the long-term average of the said electric charge sample value that receives; Wherein, when the electric charge sample value less than near the induction threshold value and during greater than the touch sensible threshold value, saidly trigger near sense events, when electric charge sample value during less than the touch sensible threshold value, said touch sensible Event triggered.
In the present embodiment; Increased the induction threshold adjustment unit in the control device of said space mouse; Make touch sensible threshold value and can follow the variation of environment and change near the induction threshold value; And then make and can detect the triggering near sense events and touch sensible incident more accurately when said space mouse is in complex environment, improved user's experience.
Control method in the face of space mouse in the present embodiment elaborates down.The control method of present embodiment can be adjusted and compensate to the touch sensible threshold value of space mouse with near the induction threshold value automatically.
Describe for convenient, still user's finger is defined as near sense events near the corresponding situation of touch key-press structure and triggers, situation corresponding during with user's finger touch button is defined as the touch sensible Event triggered.
Particularly, the process of data acquisition unit work comprises: in the given time, and with predetermined image data interval time (promptly gathering the electric charge sample value); With the summation that adds up of its a plurality of electric charge sample values that collect; Draw the long-term average of electric charge sample value after asking it average again; Long-term average with said electric charge sample value is sent to induction threshold calculations unit at last.
Respond to the threshold calculations unit, receive the long-term average of said electric charge sample value, and calculate near induction threshold value and touch sensible threshold value according to the long-term average of the electric charge sample value that receives.
Below in conjunction with concrete data said process is described further.
For example, in the present embodiment, will the schedule time be set at 1s; With being preset as 10ms predetermined interval time; Then said data acquisition unit will collect 100 data in 1s.When data acquisition unit carried out work, the long-term average that draws the electric charge sample value behind its mean value was calculated in 100 data that are about to collect in 1s summation that adds up, and the long-term average of said electric charge sample value is sent in responds to the threshold calculations unit.
And said induction threshold calculations unit calculates near induction threshold value and touch sensible threshold value according to the long-term average of the electric charge sample value that receives.For example, in the present embodiment, will near the induction threshold value be defined as the electric charge sample value long-term average 1/8th; The touch sensible threshold value is defined as ten sixths of the long-term average of electric charge sample value.Therefore, when control device detect the electric charge sample value less than said induction threshold calculations unit draw near the induction threshold value and during greater than the touch sensible threshold value, will trigger and accept sense events; And when touch sensible threshold value that the electric charge sample value draws less than said induction threshold calculations unit, will trigger the touch sensible incident.Need to prove, in practical application, can adjust the said schedule time, predetermined interval time and the concrete numerical value of second schedule time according to the actual requirements; In addition, the calculating near induction threshold value and touch sensible threshold value of present embodiment can also take other computing method to confirm, is merely in the present embodiment to illustrate, and it should not limit protection scope of the present invention.
More than disclose many aspects of the present invention and embodiment, it will be understood by those skilled in the art that others of the present invention and embodiment.Disclosed many aspects and embodiment just are used to illustrate among the present invention, are not to be to qualification of the present invention, and real protection domain of the present invention and spirit should be as the criterion with claims.
Claims (12)
1. a space mouse is characterized in that, comprises touch key-press structure and control device,
Said touch key-press structure comprises: the metal touch panel, have a plurality of metal key-press on the said touch panel, and isolate said touch panel ground connection between said button and said touch panel through insulation course; Detecting plate under the said touch panel has a plurality of electrodes corresponding with key position on the said detecting plate, insulation is isolated between said detecting plate and said touch panel; Zone between said a plurality of metal key-press and counter electrode constitutes capacity plate antenna;
Said control device links to each other with each electrode on the said detecting plate; Detect electric charge transfer case on each electrode to obtain corresponding electric charge sample value; Touch operation is discerned; And produce the identification control signal to control the operation of said space mouse according to recognition result, wherein, said detection comprises:
When the touch key-press structure faced touch or closes on touch, the corresponding voltage of total amount of electric charge that record shifts from each electrode reached the number of times of reference voltage;
The number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value.
2. space as claimed in claim 1 mouse is characterized in that, said control device comprises:
A plurality of specific capacitances, respectively with the touch key-press structure in each electrode pair should be connected;
A plurality of voltage detecting and comparing unit with the corresponding connection of said a plurality of specific capacitances, detect corresponding specific capacitance voltage respectively, when said specific capacitance voltage reaches reference voltage, and the output count signal;
Counting unit connects a plurality of voltage detecting and comparing unit, the count signal of each voltage detecting and comparing unit output is counted, and the count value of the count signal of each voltage detecting and comparing unit output is sent to the discriminance analysis unit;
The discriminance analysis unit faces in said touch key-press structure as each electrode corresponding key with the count value of the count signal of each voltage detecting and comparing unit output and to touch or close on the electric charge sample value when touching; The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value; Said identifying information is sent to operation control unit;
Operation control unit receives said identifying information, and produces the identification control signal to control the operation of said space mouse according to the said preset function that is identified as the button that is touched.
3. according to claim 1 or claim 2 space mouse is characterized in that, also comprises: be positioned at the light source of a plurality of buttons below, said light source links to each other with control device;
The material of said insulation course is a transparent insulation material;
Said control device less than near the induction threshold value and greater than the touch sensible threshold value time, is opened the said light source of said button below in the electric charge sample value of each button.
4. space as claimed in claim 3 mouse is characterized in that, said control device lightens the light source of the said button below that is touched after identification obtains to be touched button.
5. space as claimed in claim 2 mouse; It is characterized in that; Said control device also comprises: the induction threshold adjustment unit, receive the electric charge sample value that the discriminance analysis unit calculates, and according to the long-term average adjustment touch sensible threshold value of electric charge sample value in the schedule time with near the induction threshold value; Be sent to said discriminance analysis unit with adjusted touch sensible threshold value with near the induction threshold value.
6. space as claimed in claim 5 mouse is characterized in that, said induction threshold adjustment unit comprises: data acquisition unit and induction threshold calculations unit,
Data acquisition unit is gathered the electric charge sample value in the given time, and calculates the long-term average of electric charge sample value; Export the long-term average of said electric charge sample value to induction threshold calculations unit;
Induction threshold calculations unit calculates near induction threshold value and touch sensible threshold value according to the long-term average of the said electric charge sample value that receives; When the electric charge sample value less than near the induction threshold value and during greater than the touch sensible threshold value, saidly trigger near sense events; When electric charge sample value during less than the touch sensible threshold value, said touch sensible Event triggered.
7. space as claimed in claim 6 mouse; It is characterized in that; The long-term average that calculates the electric charge sample value comprises: to a plurality of electric charge sample values that collect the in the given time summation that adds up, and calculate its mean value, to draw the long-term average of said electric charge sample value.
8. the control method like each described space mouse of claim 1～7 is characterized in that, comprising:
When the touch key-press structure of space mouse faced touch or closes on touch, the corresponding voltage of total amount of electric charge that the control device record shifts from each electrode reached the number of times of reference voltage;
The number of times that reaches reference voltage with the corresponding voltage of total amount of electric charge that shifts on each electrode is as the electric charge sample value of said electrode corresponding key when said touch key-press structure faces touch or closes on touch;
The electric charge sample value is identified as the button that is touched less than the button of touch sensible threshold value;
The control device of space mouse is according to the said operation that is identified as the preset function control space mouse of the button that is touched.
9. the control method of space as claimed in claim 8 mouse is characterized in that, also comprises: when the electric charge sample value less than near the induction threshold value and during greater than the touch sensible threshold value, open the light source of corresponding key below.
10. the control method of space as claimed in claim 9 mouse is characterized in that, the control device of space mouse lightens the light source of the said button below that is touched after identification obtains to be touched button.
11. the control method like claim 8 or 9 described space mouses is characterized in that, said touch sensible threshold value and the said long-term average that all is associated with electric charge sample value in the schedule time near the induction threshold value.
12. the control method of space as claimed in claim 11 mouse; It is characterized in that; The long-term average of electric charge sample value through summation that a plurality of electric charge sample values that collect are in the given time added up, and draws after calculating its mean value in the said schedule time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110328921.7A CN102339149B (en) | 2011-10-25 | 2011-10-25 | Space mouse and control method thereof |
| PCT/CN2011/082516 WO2013060059A1 (en) | 2011-10-25 | 2011-11-21 | Air mouse and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110328921.7A CN102339149B (en) | 2011-10-25 | 2011-10-25 | Space mouse and control method thereof |
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| CN102339149B CN102339149B (en) | 2014-04-02 |
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| WO (1) | WO2013060059A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102339150A (en) * | 2011-11-02 | 2012-02-01 | 江苏惠通集团有限责任公司 | Control method of space mouse |
| CN104898854A (en) * | 2015-06-05 | 2015-09-09 | 苏州新奇迅网络有限公司 | Luminous keyboard |
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| CN101110001A (en) * | 2007-08-24 | 2008-01-23 | 华南理工大学 | Mouse wireless control device based on three-dimensional motion detecting and method thereof |
| CN101655747A (en) * | 2009-08-14 | 2010-02-24 | 四川大学 | Three-dimensional mouse |
| CN101727209A (en) * | 2008-10-21 | 2010-06-09 | 上海吉芯电子有限公司 | Method for designing wireless three-dimensional mouse |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201352336Y (en) * | 2009-01-06 | 2009-11-25 | 肖锋 | Novel touchable mouse |
| CN201804308U (en) * | 2010-09-30 | 2011-04-20 | 深圳雷柏科技股份有限公司 | Touch mouse |
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- 2011-11-21 WO PCT/CN2011/082516 patent/WO2013060059A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110001A (en) * | 2007-08-24 | 2008-01-23 | 华南理工大学 | Mouse wireless control device based on three-dimensional motion detecting and method thereof |
| CN101727209A (en) * | 2008-10-21 | 2010-06-09 | 上海吉芯电子有限公司 | Method for designing wireless three-dimensional mouse |
| CN101655747A (en) * | 2009-08-14 | 2010-02-24 | 四川大学 | Three-dimensional mouse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339150A (en) * | 2011-11-02 | 2012-02-01 | 江苏惠通集团有限责任公司 | Control method of space mouse |
| CN104898854A (en) * | 2015-06-05 | 2015-09-09 | 苏州新奇迅网络有限公司 | Luminous keyboard |
Also Published As
| Publication number | Publication date |
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| CN102339149B (en) | 2014-04-02 |
| WO2013060059A1 (en) | 2013-05-02 |
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