CN109375800A - Scan frequency setting method and scan method, device, equipment and infrared touch frame - Google Patents
Scan frequency setting method and scan method, device, equipment and infrared touch frame Download PDFInfo
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- CN109375800A CN109375800A CN201811102745.3A CN201811102745A CN109375800A CN 109375800 A CN109375800 A CN 109375800A CN 201811102745 A CN201811102745 A CN 201811102745A CN 109375800 A CN109375800 A CN 109375800A
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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- Theoretical Computer Science (AREA)
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Abstract
The present invention relates to a kind of setting method of scan frequency and devices, this method determines that scanning means generates the interfering frequency of electromagnetic interference, then scan frequency section is set according to the interfering frequency, obtain the scan frequency of scanning means, to which the scan frequency is set as jumping in scan frequency section according to the frequency change step and frequency change period of setting, so that the scan frequency of scanning means has been effectively shielded from the Frequency point of interfering frequency, scanning means can be allowed not generate electromagnetic interference to the electronic equipment of surrounding during being scanned, avoid the generation of electromagnetic interference phenomenon, and to change cost smaller for this mode.Additionally provide the scan frequency setting method and device, the control equipment of infrared touch frame, infrared touch frame and computer readable storage medium of a kind of infrared touch frame.
Description
Technical field
The present invention relates to touch apparatus technical fields, setting method, scan frequency more particularly to a kind of scan frequency
Setting device, the scan method of infrared touch frame, the control equipment, red of the scanning means of infrared touch frame, infrared touch frame
Outer touching box and computer readable storage medium.
Background technique
In touch apparatus technical field, touch apparatus usually requires to be scanned touch area by scanning means,
To detect in the touch area whether touch event occurs.For example, high-precision infrared touch frame can pass through infrared transceiver device pair
Touch area in touching box is scanned, and hot outer sending device, which issues, to be illustrated to occur in the region when infrared light is blocked
Touch event.The scanning means of touch apparatus can give off electromagnetic signal when being scanned, and in the radiation of certain frequency points
Electromagnetic radiation over-standard phenomenon can occur for electromagnetic signal, cause to cause electromagnetic interference to the electronic equipment of surrounding.
Traditional technology is usually touch apparatus configuration filter circuit to avoid the scanning means of touch apparatus in certain frequency points
The electromagnetic radiation of upper generation is exceeded, but due to touch apparatus be related to generate electromagnetic radiation it is exceeded hardware circuit it is very more, and
Route is extremely complex, and this technology is caused to be difficult to avoid that electromagnetic radiation over-standard phenomenon, and this technology pair occur for touch apparatus
The rectification of equipment is very difficult, and change cost is very high.
Summary of the invention
Based on this, it is necessary to for the above problem of traditional technology, provide setting method, the scanning frequency of a kind of scan frequency
Rate setting device, the scan method of infrared touch frame, the scanning means of infrared touch frame, infrared touch frame control equipment,
Infrared touch frame and computer readable storage medium.
A kind of setting method of scan frequency, comprising steps of
Determine that scanning means generates the interfering frequency of electromagnetic interference；
The scan frequency section of the scanning means is set according to the interfering frequency；Wherein, the scan frequency section
For the frequency separation not comprising the interfering frequency；
Obtain the scan frequency of the scanning means；
It is set the scan frequency in the scanning frequency according to the frequency change step of setting and frequency change period
It is jumped in rate section.
In one embodiment, the step of scan frequency for obtaining the scanning means includes:
Detect the operating status of the scanning means；If the operating status of the scanning means is in working condition, by institute
It states working frequency of the scanning means under the working condition and is set as the scan frequency.
In one embodiment, it further comprises the steps of:
When the operating status of the scanning means switches to dormant state from the working condition, then the scanning is filled
The scan frequency set is reduced to low-velocity scanning frequency, so that the scanning means is in low-velocity scanning state.
In one embodiment, it further comprises the steps of:
When the operating status of the scanning means switches to the working condition from the dormant state, by the scanning
Working frequency of the scan frequency of device under from low-velocity scanning frequency upgrading to the working condition.
In one embodiment, the frequency change step and frequency change period according to setting is by the scan frequency
Be set as in the scan frequency section jump the step of include:
The scan frequency is adjusted into the scan frequency section according to the frequency change step；It is swept based on described
The scan frequency in frequency separation is retouched, changes the scanning frequency according to the frequency change step and frequency change period
Rate, so that the scan frequency jumps back and forth in the scan frequency section.
In one embodiment, it further comprises the steps of:
Obtain the configuration information of the scanning means；The scanning week of the scanning means is determined according to the configuration information
Phase；According to the scan period, the frequency change step is set.
In one embodiment, a kind of scan method of infrared touch frame is provided, comprising steps of
According to the scan frequency of the setting method setting infrared touch frame of scan frequency described in embodiment any one of as above；
It is scanned according to touch area of the scan frequency to the infrared touch frame.
In one embodiment, a kind of setting device of scan frequency is provided, comprising:
Determining module, for determining that scanning means generates the interfering frequency of electromagnetic interference；
Setting module, for setting the scan frequency section of the scanning means according to the interfering frequency；Wherein, described
Scan frequency section is the frequency separation not comprising the interfering frequency；
Module is obtained, for obtaining the scan frequency of the scanning means；
Setup module, for being set the scan frequency to according to the frequency change step and frequency change period of setting
It is jumped in the scan frequency section.
In one embodiment, a kind of scanning means of infrared touch frame is provided, comprising:
Scan frequency setup module, the setting method setting for the scan frequency according to embodiment any one of as above
The scan frequency of infrared touch frame；
Touch area scan module, for being swept according to touch area of the scan frequency to the infrared touch frame
It retouches.
In one embodiment, a kind of control equipment of infrared touch frame is provided, including memory, processor and is stored in
On memory and the computer program that can run on a processor, the processor are realized as above when executing the computer program
The setting method of scan frequency described in any one embodiment or the scan method of infrared touch frame.
In one embodiment, a kind of infrared touch frame, including infrared touch frame ontology are provided, and for described red
The control equipment of infrared touch frame described in the embodiment as above that outer touching box ontology is controlled.
In one embodiment, a kind of computer readable storage medium is provided, computer program, the meter are stored thereon with
As above any one of the setting method of scan frequency described in embodiment or infrared touch frame when calculation machine program is executed by processor
Scan method.
The control of the setting method of above-mentioned scan frequency, the scan method of infrared touch frame, device, infrared touch frame is set
Standby, infrared touch frame and computer readable storage medium determine that scanning means generates the interfering frequency of electromagnetic interference, then basis
The interfering frequency sets scan frequency section, the scan frequency of scanning means is obtained, thus according to the frequency change step of setting
The scan frequency is set as jumping in scan frequency section with frequency change period, so that the scanning frequency of scanning means
Rate has been effectively shielded from the Frequency point of interfering frequency, can allow scanning means will not be to the electronics of surrounding during being scanned
Equipment generates electromagnetic interference, avoids the generation of electromagnetic interference phenomenon, and to change cost smaller for this mode.
Detailed description of the invention
Fig. 1 is the applied environment figure of the setting method of scan frequency in one embodiment；
Fig. 2 is the flow diagram of the setting method of scan frequency in one embodiment；
Fig. 3 is the flow diagram of the scan frequency setting method of one embodiment China and foreign countries touching box；
Fig. 4 is the flow diagram of the scan method of infrared touch frame in one embodiment；
Fig. 5 is the structural block diagram of the setting device of scan frequency in one embodiment；
Fig. 6 is that the structural block diagram of device is arranged in the scan frequency of one embodiment China and foreign countries touching box；
Fig. 7 is the structural block diagram of the scan setting device of infrared touch frame in one embodiment；
Fig. 8 is the internal structure chart of the control equipment of infrared touch frame in one embodiment；
Fig. 9 is the structural schematic diagram of infrared touch frame in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
The setting method of scan frequency provided by the invention can be applied in application scenarios as shown in Figure 1, Fig. 1
For the applied environment figure of the setting method of scan frequency in one embodiment, wherein can be equipped with and touch in infrared touch frame 100
Region 110, infrared touch frame 100 can be scanned touch area 110 by the infrared transceiver device being set in touching box
To determine in the touch area 110 whether there is touch event, infrared touch frame 100 is swept by infrared transceiver device
When retouching, it will usually generation electromagnetic radiation is exceeded at the multiple harmonic (1,3,5,7 ... ..., 2N-1) of 12MHz clock frequency, and
The I2S-CLOCK route of infrared touch frame 100 is very more, and interconnection circuit is extremely complex, be easy it is exceeded, rectify and improve it is extremely difficult, i.e.,
Make configuring corresponding filter circuit for infrared touch frame 100, it is also difficult to avoid in certain frequency points (electricity of infrared touch frame 100
The exceeded frequency point of magnetic radiation mainly exists: it is exceeded that electromagnetic radiation occurs for 30MHz to 1GHz), and this mode is to infrared touch frame 100
Rectification it is very difficult, change cost it is very high.The setting method of scan frequency provided by the invention enables to
The scan frequency of the touch apparatus such as infrared touch frame 100 is effectively shielded from the Frequency point of interfering frequency, avoids infrared touch frame 100
The generation of electromagnetic interference phenomenon, and it is smaller to change cost.
In one embodiment, a kind of setting method of scan frequency is provided, is in one embodiment with reference to Fig. 2, Fig. 2
The flow diagram of the setting method of scan frequency can pass through infrared touch frame 100 with the setting method of the scan frequency
It controls equipment to execute, the setting method of the scan frequency may comprise steps of:
Step S101 determines that scanning means generates the interfering frequency of electromagnetic interference.
This step is mainly to determine the interfering frequency of scanning means, and interfering frequency refers to scanning means generation in scanning
The exceeded Frequency point of electromagnetic radiation can be to the electronic equipment of surrounding when scanning means is scanned with exceeded Frequency point
Generate electronic interferences.Wherein, the exceeded statutory standard for typically referring to electromagnetic radiation and being not up to 3C/FCC/CE；It can be specified
In mechanism or test experience, detected with the detection device of the profession Frequency point exceeded to the electromagnetic radiation of scanning means.
Step S102 sets the scan frequency section of scanning means according to interfering frequency.
This step can generate scan frequency area of the interfering frequency to the scanning means of electromagnetic interference according to scanning means
Between be configured, which is usually the frequency separation for not including these interfering frequencies so that scanning means with
When Frequency point in scan frequency section is scanned, electromagnetic interference will not be produced.
For example, the interfering frequency of scanning means is mainly the multiple frequence of 12MHz, and interfering frequency is concentrated mainly on 80MHz
To 900MHz, in order to avoid scanning means generates electromagnetic interference in these interfering frequencies in scanning, it is possible to will scan
The scan frequency section of device is arranged in 11MHz to 13MHz.Optionally, it when scan frequency section is arranged, can be combined with sweeping
The IC of imaging apparatus can receive frequency range and be configured.
Step S103 obtains the scan frequency of scanning means.
This step is mainly to obtain the scan frequency of scanning means in the operating condition, if infrared touch frame is in working condition
Under scan frequency be usually 12MHz, the scan frequency of the available infrared touch frame of this step is 12MHz.
Step S104 sets scan frequency in scanning frequency according to the frequency change step of setting and frequency change period
It is jumped in rate section.
Wherein, frequency change step refers to when being jumped scan frequency, changes how many frequency every time；Frequency variation
Period refers to the period of change of scan frequency, i.e. how long scan frequency jumps once, can also be with respective frequencies change frequency；Jump
Refer to that the numerical value of scan frequency is beated according to certain frequency change step so that being scanned under certain frequency period of change
Frequency changes.
This step can make the numerical value of scan frequency sweep according to the frequency change step and frequency change period of setting
It retouches and carries out constantly bounce variation in frequency separation, the main function in scan frequency section is that scan frequency is limited in scanning frequency
In rate section, scanning means during scan frequency jumps is avoided with interfering frequency to be scanned generation electromagnetic interference.
For example, the frequency change step set is 100KHz, frequency change frequency is 1KHz, and scan frequency section is
11MHz to 13MHz, if scan frequency is 12MHz, this step can change according to frequency change step 100KHz and frequency
Frequency 1KHz by scan frequency 12MHz in scan frequency section 11MHz to being constantly changed between 13MHz, to effectively keep away
Open the interference frequency point for generating electromagnetic interference.
The setting method of above-mentioned scan frequency determines that scanning means generates the interfering frequency of electromagnetic interference, and then basis should
Interfering frequency sets scan frequency section, obtains the scan frequency of scanning means, thus according to the frequency change step of setting and
The scan frequency is set as jumping in scan frequency section by frequency change period, so that the scan frequency of scanning means
It has been effectively shielded from the Frequency point of interfering frequency, scanning means can be allowed not set to the electronics of surrounding during being scanned
It is standby to generate electromagnetic interference, avoid the generation of electromagnetic interference phenomenon, and to change cost smaller for this mode.
In one embodiment, can also include the following steps:
Obtain the configuration information of scanning means；The scan period of scanning means is determined according to configuration information；According to scanning week
Frequency change step is arranged in phase.
The present embodiment is mainly the frequency change period that scan frequency is arranged according to the configuration information of scanning means.Wherein,
Configuration information includes the software configuration information and hardware configuration information of scanning means, due to usually will record in the configuration information
Scanning means needed when being scanned to specified region how long, the scanning information such as energy consumption, it is possible to according to matching confidence
The scan period for determining scanning means is ceased, so that it is determined that scanning a cycle most when scanning means is scanned specified region
The minimum time for scanning a cycle can be set as frequency change step by the small time.Scan frequency is set in this way
Frequency change step, enable to jump scan frequency every time can to specified region carry out complete scan, avoid producing
The region omitted and need to scan also is avoided that while raw electromagnetic interference.
In one embodiment, the step of scan frequency of the acquisition scanning means in step S103 may include:
Detect the operating status of scanning means；If the operating status of scanning means is in working condition, scanning means is existed
Working frequency under working condition is set as scan frequency.
The present embodiment mainly detects the operating status of scanning means, when detecting that scanning means is in work shape
When state, working frequency of the scanning means under current working condition is set as scan frequency, is completed to the first of scan frequency
Beginningization.Wherein, if detect that scanning means is in the states such as writing, scribing line, it can be determined that the operation shape of the scanning means
The present operating frequency of scanning means can be set as scan frequency at this time by state working condition.
It is further in one of the embodiments, it can also include the following steps:
When the operating status of scanning means switches to dormant state from working condition, the scan frequency of scanning means is dropped
Low is low-velocity scanning frequency, so that scanning means is in low-velocity scanning state.
Mainly when the operating status of scanning means switches to dormant state from working condition, scanning is filled for the present embodiment
It installs as low-velocity scanning state, can not only avoid interference frequency, but also can be energy saving.
It wherein, can be with if the time that scanning means is in non-writing or non-scribing line state reaches certain time threshold value
Scanning means is switched into dormant state from working condition.By taking infrared touch frame as an example, under normal circumstances, infrared touch frame is swept
Frequency is retouched near 12MHz, it, can when all received light of infrared receiver lamp for detecting infrared touch frame are not blocked
To start timing, reach certain time threshold value to timing, this time threshold can be according to equipment debugging time and conventional writing
Operating habit determines, such as 3 to 5 minutes, then infrared touch frame can be switched to dormant state from working condition, and will be infrared
Touching box is set as low-velocity scanning state, specifically, since present RF exceeded frequency point is all 12MHz multiple frequence, and it is exceeded
Frequency point is concentrated mainly on 80MHz-900MHz, so the scan frequency of infrared touch frame is down to hundred K grades near 12MHz, from
And the frequency that avoids interference.
In another embodiment, further, can also include the following steps:
When the operating status of scanning means switches to working condition from dormant state, by the scan frequency of scanning means from
Working frequency under low-velocity scanning frequency upgrading to working condition.
Mainly when the operating status of scanning means switches to working condition from dormant state, scanning is filled for the present embodiment
The scan frequency set is promoted to rapidly the working frequency under working condition.
Scanning means in a dormant state under, can when there is touch action to be in the scanning area for detect scanning means
The scan frequency of scanning means to be promoted to rapidly to the working frequency under working condition from the corresponding frequency of low-velocity scanning state.
By taking infrared touch frame as an example, infrared touch frame in a dormant state when, have when in the touch area for detecting infrared touch frame
When touch action is gone down, the scan frequency of infrared touch frame is mentioned to 12MHz rapidly.The technical solution of the present embodiment can will be low
Scanning means under fast scanning mode carries out fast wake-up, and its scan frequency is promoted to rapidly corresponding work under working condition
Working frequency not only can guarantee and restore quickly to scan scanning area rapidly, but also has been avoided that generation electromagnetic interference.
In one embodiment, the frequency change step and frequency change period according to setting in step S104 will scan
Set of frequency is the step of jump in scan frequency section
Scan frequency is adjusted into scan frequency section according to frequency change step；Based on sweeping in scan frequency section
Frequency is retouched, changes scan frequency according to frequency change step and frequency change period, so that the scan frequency is in scan frequency area
It is interior to jump back and forth.
In the present embodiment, the scan frequency of acquisition may not be the Frequency point positioned at scan frequency section, so it may
It is the Frequency point that can generate electromagnetic interference, so scan frequency is first set in scan frequency section by the present embodiment, and utilizes
Frequency change step adjusts scan frequency into scan frequency section, advantageously ensures that scan frequency adjusted still can be right
Scanning area carries out complete scan, will not generate the scanning area of omission, then recycles frequency change step and frequency variation
Period sets transitional states back and forth for scan frequency in scan frequency section, i.e., when scan frequency becomes according to the frequency of setting
When changing maximum/minimum of the step-length increase/reduction to scan frequency section, reversely become with identical frequency change step
Change, and so on, to realize the jump back and forth of scan frequency, this hop mode enables to scan frequency will not be because of sweeping
It retouches frequency and the performance for being significantly mutated very much and influencing scanning means occurs.
In one embodiment, a kind of scan frequency setting method of infrared touch frame is provided, is one with reference to Fig. 3, Fig. 3
The flow diagram of the scan frequency setting method of embodiment China and foreign countries touching box, the scan frequency setting method of the infrared touch frame
It can be executed by the control equipment of infrared touch frame, the scan frequency setting method of the infrared touch frame may include walking as follows
It is rapid:
Step S201 determines that infrared touch frame generates the interfering frequency of electromagnetic interference.
This step is mainly to determine the interfering frequency of infrared touch frame, and interfering frequency refers to the infrared touch frame in scanning
The exceeded Frequency point of the electromagnetic radiation of generation can be to the electricity of surrounding when infrared touching box is scanned with exceeded Frequency point
Sub- equipment generates electronic interferences.Wherein, it is exceeded typically refer to electromagnetic radiation be not up to 3C FCC CE statutory standard；It can be
In specified mechanism or test experience, clicked through with the detection device of the profession frequency exceeded to the electromagnetic radiation of infrared touch frame
Row detection.
Step S202 sets the scan frequency section of infrared touch frame according to interfering frequency.
This step can generate scanning frequency of the interfering frequency to the infrared touch frame of electromagnetic interference according to infrared touch frame
Rate section is configured, which is usually the frequency separation for not including these interfering frequencies, so that infrared touch
Frame will not produce electromagnetic interference when being scanned with the Frequency point in scan frequency section.
For example, the interfering frequency of infrared touch frame is mainly the multiple frequence of 12MHz, and interfering frequency is concentrated mainly on
80MHz-900MHz, in order to avoid infrared touch frame generates electromagnetic interference in these interfering frequencies in scanning, it is possible to
The scan frequency section of infrared touch frame is arranged in 11MHz-13MHz.Optionally, when scan frequency section is arranged, may be used also
It is configured with combining the IC of infrared touch frame that can receive frequency range.
Step S203 obtains the scan frequency of infrared touch frame.
This step is mainly to obtain the scan frequency of infrared touch frame in the operating condition, if infrared touch frame is in work shape
Scan frequency under state is usually 12MHz, and the scan frequency of the available infrared touch frame of this step is 12MHz.
Step S204 sets scan frequency in scanning frequency according to the frequency change step of setting and frequency change period
It is jumped in rate section.
Wherein, frequency change step refers to when being jumped scan frequency, changes how many frequency every time；Frequency variation
Period refers to the period of change of scan frequency, i.e. how long scan frequency jumps once, can also be with respective frequencies change frequency；Jump
Refer to that the numerical value of scan frequency is beated according to certain frequency change step so that being scanned under certain frequency period of change
Frequency changes.
This step can make the numerical value of scan frequency sweep according to the frequency change step and frequency change period of setting
It retouches and carries out constantly bounce variation in frequency separation, the main function in scan frequency section is that scan frequency is limited in scanning frequency
In rate section, infrared touch frame during scan frequency jumps is avoided with interfering frequency to be scanned generation electromagnetic interference.
For example, the frequency change step set is 100KHz, frequency change frequency is 1KHz, and scan frequency section is
11MHz to 13MHz, if scan frequency is 12MHz, this step can change according to frequency change step 100KHz and frequency
Frequency 1KHz by scan frequency 12MHz in scan frequency section 11MHz to being constantly changed between 13MHz, to effectively keep away
Open the interference frequency point for generating electromagnetic interference.
The scan frequency setting method of above-mentioned infrared touch frame determines that infrared touch frame generates the interference frequency of electromagnetic interference
Then rate sets scan frequency section according to the interfering frequency, the scan frequency of infrared touch frame is obtained, thus according to setting
The scan frequency is set as jumping in scan frequency section by frequency change step and frequency change period, so that infrared
The scan frequency of touching box has been effectively shielded from the Frequency point of interfering frequency, can allow infrared touch frame during being scanned
Electromagnetic interference will not be generated to the electronic equipment of surrounding, avoid the generation of electromagnetic interference phenomenon, and this mode is modified to
This is smaller.
In one embodiment, can also include the following steps:
Obtain the configuration information of infrared touch frame；The scan period of infrared touch frame is determined according to configuration information；According to sweeping
Retouch period setting frequency change step.
The present embodiment is mainly the frequency change period that scan frequency is arranged according to the configuration information of infrared touch frame.Its
In, configuration information includes the software configuration information and hardware configuration information of infrared touch frame, due to usual in the configuration information
Will record infrared touch frame needed when being scanned to specified region how long, the scanning information such as energy consumption, it is possible to root
The scan period of infrared touch frame is determined according to configuration information, so that it is determined that scanning means scans one when being scanned to specified region
The minimum time for scanning a cycle can be set as frequency change step by the minimum time in a period.It sets in this way
The frequency change step for setting scan frequency enables to the scan frequency of jump that can completely be swept to specified region every time
It retouches, the region omitted and need to scan also is avoided that while avoiding generating electromagnetic interference.
In one embodiment, the step of scan frequency of the acquisition infrared touch frame in step S203 may include:
Detect the operating status of infrared touch frame；If the operating status of infrared touch frame is in working condition, by infrared touching
It touches the working frequency of frame in the operating condition and is set as scan frequency.
The present embodiment mainly detects the operating status of infrared touch frame, when detecting that infrared touch frame is in work
When making state, which is set as scan frequency, is completed to scanning frequency
The initialization of rate.Wherein, if detect that infrared touch frame is in the states such as writing, scribing line, it can be determined that the infrared touch
The present operating frequency of infrared touch frame can be set as scan frequency at this time by the operating status working condition of frame.
It is further in one of the embodiments, it can also include the following steps:
When the operating status of infrared touching box switches to dormant state from working condition, by the scanning frequency of infrared touch frame
Rate is reduced to low-velocity scanning frequency so that infrared touch frame is in low-velocity scanning state.
The present embodiment mainly when the operating status of infrared touch frame switches to dormant state from working condition, will be infrared
Touching box is set as low-velocity scanning state, and can not only avoid interference frequency, but also can be energy saving.
It wherein, can if the time that infrared touch frame is in the state of non-writing or non-scribing line reaches certain time threshold value
Infrared touch frame is switched to dormant state from working condition.Under normal circumstances, the scan frequency of infrared touch frame is in 12MHz
Near, when all received light of infrared receiver lamp for detecting infrared touch frame are not blocked, timing can be started, to
Timing reaches certain time threshold value, this time threshold can determine according to equipment debugging time and conventional writing operating habit
It is fixed, such as 3 to 5 minutes, then infrared touch frame can be switched into dormant state from working condition, and infrared touch frame is set as low
Fast scanning mode, specifically, since present RF exceeded frequency point is all 12MHz multiple frequence, and exceeded frequency point is mainly concentrated
In 80MHz-900MHz, so the scan frequency of infrared touch frame is down to hundred K grades near 12MHz, thus the frequency that avoids interference
Rate.
In another embodiment, further, can also include the following steps:
When the operating status of infrared touching box switches to working condition from dormant state, by the scanning frequency of infrared touch frame
Rate from low-velocity scanning frequency upgrading to working condition under working frequency.
The present embodiment is mainly when the operating status of scanning means switches to working condition from dormant state, by infrared touching
The scan frequency for touching frame is promoted to rapidly working frequency under working condition.
Infrared touch frame in a dormant state under, when having touch action in the scanning area for detecting infrared touch frame
It is the work that can be promoted to the scan frequency of infrared touch frame rapidly from the corresponding frequency of low-velocity scanning state under working condition
Working frequency.Infrared touch frame in a dormant state when, have under touch action when in the touch area for detecting infrared touch frame
When going, the scan frequency of infrared touch frame is mentioned to 12MHz rapidly.The technical solution of the present embodiment can be by low-velocity scanning state
Under scanning means carry out fast wake-up, and its scan frequency is promoted to rapidly corresponding working frequency under working condition, both
It can guarantee and restore quickly to scan scanning area rapidly, and be avoided that generation electromagnetic interference.
In one embodiment, the frequency change step and frequency change period according to setting in step S204 will scan
Set of frequency is the step of jump in scan frequency section
Scan frequency is adjusted into scan frequency section according to frequency change step；Based on sweeping in scan frequency section
Frequency is retouched, changes scan frequency according to frequency change step and frequency change period, so that the scan frequency is in scan frequency area
It is interior to jump back and forth.
In the present embodiment, the scan frequency of acquisition may not be the Frequency point positioned at scan frequency section, so it may
It is the Frequency point that can generate electromagnetic interference, so scan frequency is first set in scan frequency section by the present embodiment, and utilizes
Frequency change step adjusts scan frequency into scan frequency section, advantageously ensures that scan frequency adjusted still can be right
Scanning area carries out complete scan, will not generate the scanning area of omission, then recycles frequency change step and frequency variation
Period sets transitional states back and forth for scan frequency in scan frequency section, i.e., when scan frequency becomes according to the frequency of setting
When changing maximum/minimum of the step-length increase/reduction to scan frequency section, reversely become with identical frequency change step
Change, and so on, to realize the jump back and forth of scan frequency, this hop mode enables to scan frequency will not be because of sweeping
It retouches frequency and the performance for being significantly mutated very much and influencing scanning means occurs.
In one embodiment, a kind of scan method of infrared touch frame is provided, is in one embodiment with reference to Fig. 4, Fig. 4
The scan method of the flow diagram of the scan method of infrared touch frame, the infrared touch frame can pass through the control of infrared touch frame
Control equipment executes, and the scan method of the infrared touch frame may include steps of:
Step S301, according to the setting method of scan frequency or sweeping for infrared touch frame described in embodiment any one of as above
Retouch the scan frequency of frequency setting method setting infrared touch frame；
Step S302 is scanned according to touch area of the scan frequency to infrared touch frame.
The scan method of above-mentioned infrared touch frame, so that the scan frequency of infrared touch frame has been effectively shielded from interfering frequency
Frequency point, can allow infrared touch frame during being scanned will not to the electronic equipment of surrounding generate electromagnetic interference, keep away
The generation of electromagnetic interference phenomenon is exempted from, and to change cost smaller for this mode.
In one embodiment, a kind of setting device of scan frequency is provided, is in one embodiment with reference to Fig. 5, Fig. 5
The structural block diagram of the setting device of scan frequency, the setting device of the scan frequency may include:
Determining module 101, for determining that scanning means generates the interfering frequency of electromagnetic interference；
Setting module 102, for setting the scan frequency section of the scanning means according to the interfering frequency；Wherein,
The scan frequency section is the frequency separation not comprising the interfering frequency；
Module 103 is obtained, for obtaining the scan frequency of the scanning means；
Setup module 104, for being set the scan frequency according to the frequency change step and frequency change period of setting
It is set to and is jumped in the scan frequency section.
In one embodiment, obtaining module 103 can be further used for:
Detect the operating status of scanning means；If the operating status of scanning means is in working condition, scanning means is existed
Working frequency under working condition is set as scan frequency.
In one embodiment, obtaining module 103 can be also used for:
When the operating status of scanning means switches to dormant state from working condition, the scan frequency of scanning means is dropped
Low is low-velocity scanning frequency, so that scanning means is in low-velocity scanning state.
In one embodiment, obtaining module 103 can be also used for:
When the operating status of scanning means switches to working condition from dormant state, by the scan frequency of scanning means from
Working frequency under low-velocity scanning frequency upgrading to working condition.
In one embodiment, setup module 104 can be further used for:
Scan frequency is adjusted into scan frequency section according to frequency change step；Based on sweeping in scan frequency section
Frequency is retouched, changes scan frequency according to frequency change step and frequency change period, so that the scan frequency is in scan frequency area
It is interior to jump back and forth.
In one embodiment, can also include:
Acquiring unit, for obtaining the configuration information of scanning means；Determination unit is scanned for being determined according to configuration information
The scan period of device；Setting unit, for the frequency change step to be arranged according to the scan period.
The setting device of scan frequency of the invention and the setting method of scan frequency of the invention correspond, about sweeping
It retouches the specific of the setting device of frequency and limits the restriction that may refer to the setting method above for scan frequency, swept above-mentioned
The technical characteristic and its advantages of retouching the embodiment elaboration of the setting method of frequency are suitable for the setting device of scan frequency
Embodiment in, details are not described herein.Modules in the setting device of above-mentioned scan frequency can be fully or partially through soft
Part, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the processing in computer equipment
It in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution above each
The corresponding operation of a module.
In one embodiment, a kind of scan frequency setting device of infrared touch frame is provided, with reference to Fig. 6, Fig. 6 mono-
Device is arranged in the structural block diagram of the scan frequency setting device of a embodiment China and foreign countries touching box, the scan frequency of the infrared touch frame
May include:
Frequency determining module 201, for determining that infrared touch frame generates the interfering frequency of electromagnetic interference；
Section setting module 202, for setting the scan frequency section of the infrared touch frame according to the interfering frequency；
Wherein, the scan frequency section is the frequency separation not comprising the interfering frequency；
Frequency acquisition module 203, for obtaining the scan frequency of the infrared touch frame；
Frequency setting module 204, for according to the frequency change step of setting and frequency change period by the scanning frequency
Rate is set as jumping in the scan frequency section.
The scan frequency of scan frequency the setting device and infrared touch frame of the invention of infrared touch frame of the invention is set
Method one-to-one correspondence is set, the specific restriction of the scan frequency setting device about infrared touch frame may refer to above for red
The restriction of the scan frequency setting method of outer touching box is explained in the embodiment of the scan frequency setting method of above-mentioned infrared touch frame
The technical characteristic and its advantages stated are suitable for the embodiment of the scan frequency of infrared touch frame setting device, herein not
It repeats again.Modules in the scan frequency setting device of above-mentioned infrared touch frame can be fully or partially through software, hardware
And combinations thereof realize.Above-mentioned each module can be embedded in the form of hardware or independently of in the processor in computer equipment,
It can be stored in a software form in the memory in computer equipment, execute the above modules pair in order to which processor calls
The operation answered.
In one embodiment, a kind of scanning means of infrared touch frame is provided, is one embodiment with reference to Fig. 7, Fig. 7
The structural block diagram of the scan setting device of middle infrared touch frame, the scan frequency of the infrared touch frame are arranged device and may include:
Scan frequency setup module 301, the setting method for the scan frequency according to embodiment any one of as above
Or the scan frequency of the scan frequency setting method setting infrared touch frame of infrared touch frame；
Touch area scan module 301, for being scanned according to touch area of the scan frequency to infrared touch frame.
The scan method of the scanning means of infrared touch frame of the invention and infrared touch frame of the invention corresponds, and closes
It may refer to the restriction of the scan method above for infrared touch frame in the specific restriction of the scanning means of infrared touch frame,
It is suitable for infrared touch in the technical characteristic and its advantages of the embodiment elaboration of the scan method of above-mentioned infrared touch frame
In the embodiment of the scanning means of frame, details are not described herein.Modules in the scanning means of above-mentioned infrared touch frame can be complete
Portion or part are realized by software, hardware and combinations thereof.Above-mentioned each module can be embedded in the form of hardware or independently of calculating
In processor in machine equipment, it can also be stored in a software form in the memory in computer equipment, in order to processor
It calls and executes the corresponding operation of the above modules.
In one embodiment, a kind of control equipment of infrared touch frame, the control equipment of the infrared touch frame are provided
It can be the terminal device that personal computer etc. has data-handling capacity, internal structure chart can be as shown in figure 8, Fig. 8 be
The internal structure chart of the control equipment of infrared touch frame in one embodiment.The control equipment of the infrared touch frame may include leading to
Cross the processor and memory of system bus connection.Wherein, the processor of the control equipment of the infrared touch frame is based on providing
Calculation and control ability.The memory of the control equipment of the infrared touch frame includes non-volatile memory medium, built-in storage.This is non-
Volatile storage medium is stored with operating system and computer program.The built-in storage is the operation in non-volatile memory medium
The operation of system and computer program provides environment.To realize a kind of as above any one when the computer program is executed by processor
The scanning of the setting method of scan frequency described in embodiment, the scan frequency setting method of infrared touch frame or infrared touch frame
Method.
It will be understood by those skilled in the art that structure shown in Fig. 8, only part relevant to the present invention program is tied
The block diagram of structure does not constitute the restriction of the control equipment for the infrared touch frame being applied thereon to the present invention program, specifically
The control equipment of infrared touch frame may include than more or fewer components as shown in the figure, perhaps combine certain components or
With different component layouts.
In one embodiment, a kind of control equipment of infrared touch frame, the control equipment of the infrared touch frame are provided
Including memory, processor and store the computer program that can be run on a memory and on a processor, wherein processor is held
Setting method, the scan frequency of infrared touch frame of scan frequency described in as above any one embodiment are realized when row described program
The scan method of setting method or infrared touch frame.
In one embodiment, a kind of control equipment of infrared touch frame, including memory, processor and storage are provided
On a memory and the computer program that can run on a processor, processor perform the steps of when executing computer program
Determine that scanning means generates the interfering frequency of electromagnetic interference；The scan frequency of scanning means is set according to interfering frequency
Section；Obtain the scan frequency of scanning means；Scan frequency is set according to the frequency change step and frequency change period of setting
It is set to and is jumped in scan frequency section.
In one embodiment, it is also performed the steps of when processor executes computer program
Obtain the configuration information of scanning means；The scan period of scanning means is determined according to configuration information；According to scanning week
Frequency change step is arranged in phase.
In one embodiment, it is also performed the steps of when processor executes computer program
Detect the operating status of scanning means；If the operating status of scanning means is in working condition, scanning means is existed
Working frequency under working condition is set as scan frequency.
In one embodiment, it is also performed the steps of when processor executes computer program
When the operating status of scanning means switches to dormant state from working condition, the scan frequency of scanning means is dropped
Low is low-velocity scanning frequency, so that scanning means is in low-velocity scanning state.
In one embodiment, it is also performed the steps of when processor executes computer program
When the operating status of scanning means switches to working condition from dormant state, by the scan frequency of scanning means from
Working frequency under low-velocity scanning frequency upgrading to working condition.
In one embodiment, it is also performed the steps of when processor executes computer program
Scan frequency is adjusted into scan frequency section according to frequency change step；Based on sweeping in scan frequency section
Frequency is retouched, changes scan frequency according to frequency change step and frequency change period, so that the scan frequency is in scan frequency area
It is interior to jump back and forth.
In one embodiment, a kind of control equipment of infrared touch frame, including memory, processor and storage are provided
On a memory and the computer program that can run on a processor, processor perform the steps of when executing computer program
Determine that infrared touch frame generates the interfering frequency of electromagnetic interference；The scanning of infrared touch frame is set according to interfering frequency
Frequency separation；Obtain the scan frequency of infrared touch frame；It will be scanned according to the frequency change step and frequency change period of setting
Set of frequency is to jump in scan frequency section.
In one embodiment, a kind of control equipment of infrared touch frame, including memory, processor and storage are provided
On a memory and the computer program that can run on a processor, processor perform the steps of when executing computer program
It is set according to the setting method of scan frequency described in embodiment any one of as above or the scan frequency of infrared touch frame
Set the scan frequency of method setting infrared touch frame；It is scanned according to touch area of the scan frequency to infrared touch frame.
The control equipment of above-mentioned infrared touch frame, by the computer program run on the processor, so that infrared touching
The scan frequency for touching frame has been effectively shielded from the Frequency point of interfering frequency, can allow infrared touch frame during being scanned not
Meeting generates electromagnetic interference to the electronic equipment of surrounding, avoids the generation of electromagnetic interference phenomenon, and this mode changes cost
It is smaller.
In one embodiment, a kind of infrared touch frame is provided, is infrared touch in one embodiment with reference to Fig. 9, Fig. 9
The structural schematic diagram of frame, the infrared touch frame may include: infrared touch frame ontology 100, and for infrared touch frame sheet
The control equipment 200 of infrared touch frame described in any one embodiment as above that body 100 is controlled.
Wherein, infrared touch frame ontology 100 includes the infrared transceiver device for being scanned to touch area 110, red
The control equipment 200 of outer touching box can control the infrared transceiver device of infrared touch frame ontology 100, according to setting
The infrared transceiver device of scan frequency control infrared touch frame ontology 100 is scanned touch area 110, so that infrared touch
The scan frequency of frame ontology 100 has been effectively shielded from the Frequency point of interfering frequency, and infrared touch frame ontology 100 can be allowed to carry out
Electromagnetic interference will not be generated to the electronic equipment of surrounding in scanning process, avoid the generation of electromagnetic interference phenomenon, and this
It is smaller that mode changes cost.
Those of ordinary skill in the art will appreciate that realizing the setting side of scan frequency described in as above any one embodiment
All or part of the process in the scan method of method, the scan frequency setting method of infrared touch frame or infrared touch frame, being can
It is completed with instructing relevant hardware by computer program, the computer program can be stored in a non-volatile calculating
In machine read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Its
In, to any reference of memory, storage, database or other media used in each embodiment provided by the present invention,
It may each comprise non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), may be programmed
ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory can wrap
Include random access memory (RAM) or external cache.By way of illustration and not limitation, RAM in a variety of forms may be used
, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), increase
Strong type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Accordingly, a kind of computer readable storage medium is also provided in one embodiment, is stored thereon with computer program,
Wherein, the setting method of scan frequency described in realization any one embodiment as above, infrared touching when which is executed by processor
Touch the scan frequency setting method of frame or the scan method of infrared touch frame.
A kind of computer readable storage medium is provided in one embodiment, is stored thereon with computer program, is calculated
Machine program performs the steps of when being executed by processor
Determine that scanning means generates the interfering frequency of electromagnetic interference；The scan frequency of scanning means is set according to interfering frequency
Section；Obtain the scan frequency of scanning means；Scan frequency is set according to the frequency change step and frequency change period of setting
It is set to and is jumped in scan frequency section.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Obtain the configuration information of scanning means；The scan period of scanning means is determined according to configuration information；According to scanning week
Frequency change step is arranged in phase.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Detect the operating status of scanning means；If the operating status of scanning means is in working condition, scanning means is existed
Working frequency under working condition is set as scan frequency.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When the operating status of scanning means switches to dormant state from working condition, the scan frequency of scanning means is dropped
Low is low-velocity scanning frequency, so that scanning means is in low-velocity scanning state.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When the operating status of scanning means switches to working condition from dormant state, by the scan frequency of scanning means from
Working frequency under low-velocity scanning frequency upgrading to working condition.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Scan frequency is adjusted into scan frequency section according to frequency change step；Based on sweeping in scan frequency section
Frequency is retouched, changes scan frequency according to frequency change step and frequency change period, so that the scan frequency is in scan frequency area
It is interior to jump back and forth.
A kind of computer readable storage medium is provided in one embodiment, is stored thereon with computer program, is calculated
Machine program performs the steps of when being executed by processor
Determine that infrared touch frame generates the interfering frequency of electromagnetic interference；The scanning of infrared touch frame is set according to interfering frequency
Frequency separation；Obtain the scan frequency of infrared touch frame；It will be scanned according to the frequency change step and frequency change period of setting
Set of frequency is to jump in scan frequency section.
A kind of computer readable storage medium is provided in one embodiment, is stored thereon with computer program, is calculated
Machine program performs the steps of when being executed by processor
It is set according to the setting method of scan frequency described in embodiment any one of as above or the scan frequency of infrared touch frame
Set the scan frequency of method setting infrared touch frame；It is scanned according to touch area of the scan frequency to infrared touch frame.
Above-mentioned computer readable storage medium, by the computer program that it is stored, so that the scan frequency of scanning means
It has been effectively shielded from the Frequency point of interfering frequency, scanning means can be allowed not set to the electronics of surrounding during being scanned
It is standby to generate electromagnetic interference, avoid the generation of electromagnetic interference phenomenon, and to change cost smaller for this mode.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (12)
1. a kind of setting method of scan frequency, which is characterized in that comprising steps of
Determine that scanning means generates the interfering frequency of electromagnetic interference；
The scan frequency section of the scanning means is set according to the interfering frequency；Wherein, the scan frequency section is not
Frequency separation comprising the interfering frequency；
Obtain the scan frequency of the scanning means；
It is set the scan frequency in the scan frequency area according to the frequency change step of setting and frequency change period
Interior jump.
2. the setting method of scan frequency according to claim 1, which is characterized in that the acquisition scanning means
The step of scan frequency includes:
Detect the operating status of the scanning means；
If the operating status of the scanning means is in working condition, by work of the scanning means under the working condition
Frequency is set as the scan frequency.
3. the setting method of scan frequency according to claim 2, which is characterized in that further comprise the steps of:
When the operating status of the scanning means switches to dormant state from the working condition, by sweeping for the scanning means
It retouches frequency and is reduced to low-velocity scanning frequency, so that the scanning means is in low-velocity scanning state.
4. the setting method of scan frequency according to claim 2, which is characterized in that further comprise the steps of:
When the operating status of the scanning means switches to the working condition from the dormant state, by the scanning means
Working frequency of the scan frequency under from low-velocity scanning frequency upgrading to the working condition.
5. the setting method of scan frequency according to claim 1, which is characterized in that described to be changed according to the frequency of setting
The scan frequency is set the step of jumping in the scan frequency section by step-length and frequency change period
The scan frequency is adjusted into the scan frequency section according to the frequency change step；
Based on the scan frequency in the scan frequency section, change according to the frequency change step and frequency change period
Become the scan frequency, so that the scan frequency jumps back and forth in the scan frequency section.
6. the setting method of scan frequency according to any one of claims 1 to 5, which is characterized in that further comprise the steps of:
Obtain the configuration information of the scanning means；
The scan period of the scanning means is determined according to the configuration information；
According to the scan period, the frequency change step is set.
7. a kind of scan method of infrared touch frame, which is characterized in that comprising steps of
The scan frequency of infrared touch frame is set according to the setting method of scan frequency such as claimed in any one of claims 1 to 6；
It is scanned according to touch area of the scan frequency to the infrared touch frame.
8. a kind of setting device of scan frequency characterized by comprising
Determining module, for determining that scanning means generates the interfering frequency of electromagnetic interference；
Setting module, for setting the scan frequency section of the scanning means according to the interfering frequency；Wherein, the scanning
Frequency separation is the frequency separation not comprising the interfering frequency；
Module is obtained, for obtaining the scan frequency of the scanning means；
Setup module, for being set the scan frequency in institute according to the frequency change step and frequency change period of setting
It states in scan frequency section and jumps.
9. a kind of scanning means of infrared touch frame characterized by comprising
Scan frequency setup module, for being arranged according to the setting method such as scan frequency as claimed in any one of claims 1 to 6
The scan frequency of infrared touch frame；
Touch area scan module, for being scanned according to touch area of the scan frequency to the infrared touch frame.
10. a kind of control equipment of infrared touch frame, including memory, processor and storage are on a memory and can be in processor
The computer program of upper operation, which is characterized in that the processor realizes claim 1 to 7 when executing the computer program
The setting method of described in any item scan frequencies or the scan method of infrared touch frame.
11. a kind of infrared touch frame, which is characterized in that including infrared touch frame ontology, and for the infrared touch frame
The control equipment for the infrared touch frame as claimed in claim 10 that ontology is controlled.
12. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The setting method of the described in any item scan frequencies of claim 1 to 7 or sweeping for infrared touch frame are realized when being executed by processor
Retouch method.
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