CN112925439A - Frequency hopping system and frequency hopping processing method suitable for capacitive touch control - Google Patents
Frequency hopping system and frequency hopping processing method suitable for capacitive touch control Download PDFInfo
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- CN112925439A CN112925439A CN202110156467.5A CN202110156467A CN112925439A CN 112925439 A CN112925439 A CN 112925439A CN 202110156467 A CN202110156467 A CN 202110156467A CN 112925439 A CN112925439 A CN 112925439A
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- 230000010355 oscillation Effects 0.000 claims abstract description 142
- 230000001960 triggered effect Effects 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The invention discloses a capacitive touch frequency hopping system and a frequency hopping processing method, which comprise a microprocessor, a register and a frequency hopping module, wherein the microprocessor, the register and the frequency hopping module are electrically connected with each other, the frequency hopping module is provided with a plurality of different oscillation main frequencies, two different main frequencies are used in combination, a judgment signal is sent to the register through the microprocessor (1) according to different use environments, the register triggers the two corresponding main frequencies in the frequency hopping module to be mutually switched, so that the purpose of resisting interference is achieved, the register triggers the two corresponding oscillation modules through the microprocessor (1) according to the application environments, so that the main frequencies of the two oscillation modules are mutually switched, the aim of resisting interference is achieved, in addition, the oscillation modules can form a plurality of combinations, and the application range is wider.
Description
Technical Field
The invention belongs to the technical field of capacitive touch control, and particularly relates to a capacitive touch frequency hopping system and a frequency hopping processing method.
Background
In the field of touch technology, when an equivalent capacitance outside an oscillator changes, an output frequency of the oscillator changes, and when a user has a touch behavior, the oscillator senses the external capacitance, so that an oscillation frequency output by the oscillator decreases. Resulting in a false triggering of the system.
Disclosure of Invention
The present invention is directed to a capacitive touch frequency hopping system and a frequency hopping processing method, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a be applicable to capacitanc touch-control frequency hopping system, includes microprocessor, register and frequency hopping module of mutual electric connection, frequency hopping module has a plurality of different oscillation dominant frequencies, and wherein two different dominant frequencies use in combination, according to the service environment of difference, sends the judgement signal to the register through microprocessor, and the register triggers two different dominant frequencies that correspond in the frequency hopping module and switches each other to reach anti-jamming purpose.
According to the further technical scheme, the frequency hopping module comprises a first oscillation module, a second oscillation module, a third oscillation module and a fourth oscillation module which have different main frequencies, wherein the first oscillation module, the second oscillation module, the third oscillation module and the fourth oscillation module are mutually crossed and combined for use, and corresponding oscillation modules are triggered by a register to be combined for use.
According to the further technical scheme, the main frequency of the first oscillation module is 1MHz, the main frequency of the second oscillation module is 3MHz, the frequency of the third oscillation module is 7MHz, and the frequency of the fourth oscillation module is 11 MHz.
In a further technical scheme, the first oscillation module, the second oscillation module, the third oscillation module and the fourth oscillation module respectively have 8 sub-frequencies.
The technical scheme is that the device further comprises an input module, and a user can send a selection signal to the microprocessor through the input module according to actual requirements, so that the microprocessor sends a judgment signal to the register, and the corresponding oscillation modules are triggered by the register to be used in a combined mode.
According to a further technical scheme, the device further comprises an output module, wherein the output module is electrically connected with the first oscillation module, the second oscillation module, the third oscillation module and the fourth oscillation module respectively, and outputs corresponding signals according to the selected main frequencies of the two oscillation modules.
The invention has the beneficial effects that:
the invention provides a capacitive touch frequency hopping system which is provided with a plurality of oscillation modules, a judgment signal is sent to a register through a microprocessor according to an application environment, the register triggers two corresponding oscillation modules, the main frequencies of the two oscillation modules are mutually switched, and the purpose of resisting interference is achieved.
A frequency hopping processing method comprises the following steps:
s1: starting system
S2: input signal
The external interference frequency is difficult to detect, and the optimal combination can be obtained by trying different combinations, or if the source of the interference signal is known and a specific interference signal frequency is detected, the applicable combination can be directly selected, and the user can send a selection signal to the microprocessor 1 through the input module 4.
S3: judgment combination
The input module 4 sends a selection signal to the microprocessor 1, and the microprocessor 1 judges the oscillation module combination required to be used and sends the judgment result to the register 2.
S4: trigger combination
The register 2 receives the judgment signal sent by the microprocessor 1, the register 2 triggers the corresponding main frequencies in the frequency hopping module 3 to be combined, wherein the frequency hopping module 3 comprises a first oscillation module 31, a second oscillation module 32, a third oscillation module 33 and a fourth oscillation module 34 with different main frequencies, the first oscillation module 31, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 are mutually crossed and combined for use, and the corresponding oscillation modules are triggered to be combined for use through the register 2.
S5: output signal
The register 2 triggers the corresponding oscillation module to shield other oscillation modules, and the corresponding oscillation module is started to send a signal to the output module 5.
The invention has the beneficial effects that:
the invention also provides a processing method suitable for the capacitive touch frequency hopping system, which can improve the influence of external frequency interference on the touch system, thereby ensuring that the touch system can work normally and stably even in an environment with larger external interference.
Drawings
FIG. 1: the invention is a schematic operation diagram.
FIG. 2: the system of the invention is schematically shown.
FIG. 3: the invention discloses a main frequency oscillation switching schematic diagram.
FIG. 4: the sub-frequency scanning of the present invention is illustrated.
FIG. 5: the use method of the invention is shown schematically.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention,
referring to fig. 1-4 of the drawings,
the utility model provides a be applicable to capacitanc touch-control frequency hopping system, includes mutual electrically connected's microprocessor 1, register 2 and frequency hopping module 3, frequency hopping module 3 has a plurality of different oscillation dominant frequencies, and wherein two different dominant frequencies use in combination, according to the service environment of difference, sends the judgement signal through microprocessor 1 to register 2, and register 2 triggers two different dominant frequencies that correspond in the frequency hopping module 3 and switches each other to reach anti-jamming purpose.
In a further technical scheme, the frequency hopping module 3 includes a first oscillation module 31, a second oscillation module 32, a third oscillation module 33 and a fourth oscillation module 34 with different main frequencies, the first oscillation module 31, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 are mutually crossed and combined for use, and the corresponding oscillation modules are triggered to be combined for use through the register 2.
In one embodiment of the present invention, the substrate is,
the operation principle is as follows: according to different use environments, a selection signal is sent to a register 2 through a microprocessor 1, the register 2 triggers two corresponding oscillation modules to be combined for use, wherein the combination comprises a first oscillation module 31 and a second oscillation module 32 which are in a group, a first oscillation module 31 and a third oscillation module 33 which are in a group, a first oscillation module 31 and a fourth oscillation module 34 which are in a group, a second oscillation module 32 and a third oscillation module 33 which are in a group, a second oscillation module 32 and a fourth oscillation module 34 which are in a group, and a third oscillation module 33 and a fourth oscillation module 34 which are in a group, so that the main frequencies of the two triggered oscillation modules are mutually switched to achieve the purpose of resisting interference.
In a further technical scheme, the primary frequency of the first oscillation module 31 is 1MHz, the primary frequency of the second oscillation module 32 is 3MHz, the frequency of the third oscillation module 33 is 7MHz, and the frequency of the fourth oscillation module 34 is 11 MHz.
Preferably, the oscillation module one 31 and the oscillation module two 32 are selected as a group, that is, the main frequencies are 1MHz and 3MHz, and the oscillation module two 32 and the oscillation module three 33 are selected as a group, that is, the main frequencies are 3MHz and 7MHz, and the oscillation module three 33 and the oscillation module four 34 are selected as a group, that is, the main frequencies are 7MHz and 11MHz, and the oscillation module three 31 and the oscillation module four 32 are selected as a group, that is, the main frequencies are 1MHz and 3MHz, and the oscillation module three and the oscillation module four 34 are selected as a group.
In a further technical scheme, the first oscillation module 31, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 respectively have 8 sub-frequencies.
For example: the main frequency of the first oscillation module 31 is 1MHz, 8 sub-frequencies of the first oscillation module are 1.125MHz, 1.111MHz, 1.099MHz, 1.085MHz, 1.074MHz, 1.059MHz, 1.040MHz and 1.020MHz respectively, the 8 sub-frequencies can be scanned in a staggered mode, the anti-interference capability of the first oscillation module 31 is stronger, and in addition, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 are the same in principle.
The technical scheme is that the device further comprises an input module 4, and a user can send a selection signal to the microprocessor 1 through the input module 4 according to actual requirements, so that the microprocessor 1 sends a judgment signal to the register 2, and the corresponding oscillation modules are triggered through the register 2 to be used in a combined mode.
When the interference frequency detection device is used, the external interference frequency is difficult to detect, the optimal combination can be determined by trying different combinations, or the source of an interference signal is known, and the specific interference signal frequency is detected, so that the applicable combination can be directly selected, a user can send a selection signal to the microprocessor 1 through the input module 4, the microprocessor 1 sends a judgment signal to the register 2, and finally the corresponding two oscillation modules are triggered through the register 2 to be used in combination.
According to a further technical scheme, the device further comprises an output module 5, wherein the output module 5 is electrically connected with the first oscillation module 31, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 respectively, and outputs corresponding signals according to the selected main frequencies of the two oscillation modules.
A frequency hopping processing method, as shown in fig. 5, includes the following steps:
s1: starting system
S2: input signal
The external interference frequency is difficult to detect, and the optimal combination can be obtained by trying different combinations, or if the source of the interference signal is known and a specific interference signal frequency is detected, the applicable combination can be directly selected, and the user can send a selection signal to the microprocessor 1 through the input module 4.
S3: judgment combination
The input module 4 sends a selection signal to the microprocessor 1, and the microprocessor 1 judges the oscillation module combination required to be used and sends the judgment result to the register 2.
S4: trigger combination
The register 2 receives the judgment signal sent by the microprocessor 1, the register 2 triggers the corresponding main frequencies in the frequency hopping module 3 to be combined, wherein the frequency hopping module 3 comprises a first oscillation module 31, a second oscillation module 32, a third oscillation module 33 and a fourth oscillation module 34 with different main frequencies, the first oscillation module 31, the second oscillation module 32, the third oscillation module 33 and the fourth oscillation module 34 are mutually crossed and combined for use, and the corresponding oscillation modules are triggered to be combined for use through the register 2.
S5: output signal
The register 2 triggers the corresponding oscillation module to shield other oscillation modules, and the corresponding oscillation module is started to send a signal to the output module 5.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a be applicable to capacitanc touch-control frequency hopping system which characterized in that: the frequency hopping module comprises a microprocessor (1), a register (2) and a frequency hopping module (3) which are electrically connected with each other, wherein the frequency hopping module (3) has a plurality of different oscillation main frequencies, two different main frequencies are used in combination, a judgment signal is sent to the register (2) through the microprocessor (1) according to different use environments, and the register (2) triggers two corresponding different main frequencies in the frequency hopping module (3) to be mutually switched so as to achieve the purpose of resisting interference.
2. The system according to claim 1, wherein: the frequency hopping module (3) comprises a first oscillation module (31), a second oscillation module (32), a third oscillation module (33) and a fourth oscillation module (34) with different main frequencies, the first oscillation module (31), the second oscillation module (32), the third oscillation module (33) and the fourth oscillation module (34) are mutually crossed and combined for use, and the corresponding oscillation modules are triggered to be combined for use through the register (2).
3. The system of claim 2, wherein: the main frequency of the first oscillation module (31) is 1MHz, the main frequency of the second oscillation module (32) is 3MHz, the frequency of the third oscillation module (33) is 7MHz, and the frequency of the fourth oscillation module (34) is 11 MHz.
4. The system according to claim 3, wherein: the first oscillation module (31), the second oscillation module (32), the third oscillation module (33) and the fourth oscillation module (34) respectively have 8 sub-frequencies.
5. The system according to claim 4, wherein: a user can send a selection signal to the microprocessor (1) through the input module (4) according to actual requirements, so that the microprocessor (1) sends a judgment signal to the register (2), and the corresponding oscillation modules are triggered to be used in a combined mode through the register (2).
6. The system according to claim 5, wherein: the device is characterized by further comprising an output module (5), wherein the output module (5) is electrically connected with the first oscillation module (31), the second oscillation module (32), the third oscillation module (33) and the fourth oscillation module (34) respectively, and outputs corresponding signals according to the triggered main frequencies of the two oscillation modules.
7. A frequency hopping processing method is characterized in that:
s1: starting system
S2: input signal
The user sends a selection signal to the microprocessor 1 through the input module 4 as required.
S3: judgment combination
The input module 4 sends a selection signal to the microprocessor 1, and the microprocessor 1 judges the oscillation module combination required to be used and sends the judgment result to the register 2.
S4: trigger combination
The register 2 receives the judgment signal sent by the microprocessor 1, so that the register 2 triggers the corresponding main frequencies in the frequency hopping module 3 to be combined.
S5: output signal
The register 2 triggers the corresponding oscillation module to shield other oscillation modules, and the corresponding oscillation module is started to send a signal to the output module 5.
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| CN202110156467.5A CN112925439A (en) | 2021-02-04 | 2021-02-04 | Frequency hopping system and frequency hopping processing method suitable for capacitive touch control |
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2021
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| FI19991977A (en) * | 1999-09-16 | 2001-03-16 | Nokia Networks Oy | Method and apparatus for generating a signal |
| JP2010288129A (en) * | 2009-06-12 | 2010-12-24 | Nippon Dempa Kogyo Co Ltd | Oscillator |
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