CN107102729A - A kind of PPT Demonstration Control Systems based on CSI gesture identifications - Google Patents
A kind of PPT Demonstration Control Systems based on CSI gesture identifications Download PDFInfo
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- CN107102729A CN107102729A CN201710215880.8A CN201710215880A CN107102729A CN 107102729 A CN107102729 A CN 107102729A CN 201710215880 A CN201710215880 A CN 201710215880A CN 107102729 A CN107102729 A CN 107102729A
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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
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
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- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses a kind of PPT Demonstration Control Systems based on CSI gesture identifications, wifi wireless routers and the wireless network card of computer-internal set up system connection, computer-internal wireless network card and processing data information are electrically connected with control unit, PPT demonstrations control and processing data information are electrically connected with control unit, wifi wireless routers are used to launch wireless wifi signals, wireless network card is used to gather CSI gesture data information, processing data information is used for the unique mapping relations for the CSI values for storing gesture with control unit, and to the CSI values of the gesture to be identified of acquisition matched with the CSI values of the gesture of storage after noise filtering, PPT demonstration control devices are used to complete the response that gesture control PPT to be identified acts accordingly.Novel in structural design of the present invention is simple and more accurate relative to other technologies gesture identification.
Description
Technical field
The invention belongs to the applied technical field of gesture identification, and in particular to a kind of PPT demonstrations based on CSI gesture identifications
Control system.
Background technology
In existing teaching demonstration and meeting report system, increasing people carries out demonstration report, PPT using PPT
Demonstrating visual and conveniently, but most of mouse, keyboard or electronic teacher pointer control PPT of being limited to demonstrated, and defines user's
Position, is unfavorable for and spectators' exchange and interdynamic.Occur in that at present regarding to the issue above based on what gesture identification controlled PPT demonstrations and be
System, is mainly based upon camera and sensor, wherein the gesture identification based on camera is expensive, and camera has prison
Control blind area；Sensor-based gesture identification needs user to dress extra special installation, and process is cumbersome and there is certain office
It is sex-limited.Therefore, the present invention proposes a kind of wireless network card using in existing wifi equipment and computer and extracts CSI
（Channel State Information, radio channel status information）Method carry out gesture identification, without additional extra
Equipment, the CSI values control PPT apparatus for demonstrating after directly being handled using acquisition is demonstrated.
The content of the invention
Present invention solves the technical problem that there is provided a kind of novel in structural design and without additional extras based on
The PPT Demonstration Control Systems of CSI gesture identifications, the system causes CSI values to become using the motion of human body gesture in the environment
Change to control PPT demonstration, the transmission of wherein radio channel status information is multiple subcarrier parallel transmissions, and CSI includes transmission
The amplitude and phase information of signal, make gesture identification degree higher relative to other technologies and identification is more accurate.
The present invention adopts the following technical scheme that a kind of PPT based on CSI gesture identifications demonstrates to solve above-mentioned technical problem
Control system, it is characterised in that demonstrated including wifi wireless routers, wireless network card, processing data information and control unit, PPT
Control device, wherein wifi wireless routers are used to launch wireless wifi signals, the wireless network card sum of computer-internal it is believed that
Breath processing is electrically connected with control unit, and wireless network card is used to gather CSI gesture data information, and processing data information is single with control
Member is used for the unique mapping relations for storing gesture and CSI values, and to the CSI values of the gesture to be identified of acquisition after noise filtering with depositing
The CSI values of the gesture of storage are matched, and processing data information is electrically connected with control unit and PPT demonstration control devices, and PPT is drilled
Show that control device is used to complete the response that gesture control PPT to be identified acts accordingly.
The operation method of PPT Demonstration Control Systems of the present invention based on CSI gesture identifications, it is characterised in that specific
Process is：The foundation of initial model is carried out first, and wifi wireless routers launch wireless wifi signals, in stable wifi signals
The certain gestures action of different control PPT demonstrations is done in, and obtains the CSI data messages of each certain gestures action, meter
Wireless network card inside calculation machine gathers the CSI data messages of each certain gestures action, recycles Wavelet Denoising Method to carry out the filter of CSI values
Make an uproar processing, the CSI values of each certain gestures action after filtering are stored into the database of processing data information and control unit
In, the specific action demonstrated as one-to-one gesture control PPT；Then user does in wifi signal fields and drilled for PPT
The gesture motion shown, wireless network card gathers the CSI data messages of gesture to be identified, is treated by processing data information with control unit
Recognize gesture CSI values matched with the CSI values of the certain gestures control action of storage after noise filtering, if gesture to be identified
The CSI values of certain gestures control action of the CSI values of action with storing are matched, then PPT demonstration control devices make respective response,
Then user is waited to make the gesture motion of next manipulation PPT demonstrations, if the CSI values of gesture motion to be identified and storage
The CSI values of certain gestures control action are mismatched, then are postponed after 1s by processing data information and control unit control wireless network card
Reacquire the CSI data messages of user's gesture to be identified.
The present invention has the advantages that compared with prior art：The demonstrations of the PPT based on CSI gesture identifications of the present invention
Control system make use of existing wifi equipment, and wifi technologies are widely used and easily disposed, and improve practicality and convenience,
And the radio channel status information based on wifi can be obtained by existing wireless network card, novel in structural design and without attached
Plus extra equipment, structure is simpler, and the transmission of radio channel status information is multiple subcarrier parallel transmissions, comprising
The amplitude and phase information of each subcarrier, the degree of accuracy of gesture identification are higher.
Brief description of the drawings
Fig. 1 is the module connection figure of the present invention；
Fig. 2 is the operation logic figure of the present invention.
Embodiment
The particular content of the present invention is described in detail with reference to accompanying drawing.A kind of PPT demonstration controls system based on CSI gesture identifications
System, including wifi wireless routers, wireless network card, processing data information and control unit, PPT demonstration control devices, wherein
Wifi wireless routers are used to launch wireless wifi signals, and the wireless network card and processing data information of computer-internal and control are single
Member is electrically connected with, and wireless network card is used to gather CSI gesture data information, and processing data information is used to store gesture with control unit
With unique mapping relations of CSI values, and to the CSI values of the gesture to be identified of acquisition CSI after noise filtering with the gesture of storage
Value is matched, and processing data information is electrically connected with control unit and PPT demonstration control devices, and PPT demonstration control devices are used
The response acted accordingly in completion gesture control PPT to be identified.
Have been shown and described above the general principle of the present invention, principal character and advantage, do not depart from spirit of the invention and
On the premise of scope, the present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention
Scope.
Claims (2)
1. a kind of PPT Demonstration Control Systems based on CSI gesture identifications, it is characterised in that including wifi wireless routers, wirelessly
Network interface card, processing data information and control unit and PPT demonstration control devices, wherein wifi wireless routers are used to launch wireless
Wifi signals, wireless network card and processing data information and the control unit of computer-internal are electrically connected with, and wireless network card is used to adopt
Collect CSI gesture data information, processing data information is used for the unique mapping relations for the CSI values for storing gesture with control unit, and
To the CSI values of the gesture to be identified of acquisition matched with the CSI values of the gesture of storage after noise filtering, processing data information with
Control unit and PPT demonstration control devices are electrically connected with, and the PPT demonstration control devices are used to complete the PPT under gesture to be identified
Demonstration.
2. a kind of operation method of the PPT Demonstration Control Systems based on CSI gesture identifications described in claim 1, its feature exists
It is in detailed process：The foundation of initial model is carried out first, and wifi wireless routers launch wireless wifi signals, in stabilization
The certain gestures action of different control PPT demonstrations is done in wifi signal fields, and obtains the CSI data of each certain gestures action
Information, the wireless network card of computer-internal gathers the CSI data messages of each certain gestures action, recycles Wavelet Denoising Method to carry out
CSI value filters are made an uproar processing, and the CSI values of each certain gestures action after filtering are stored into processing data information and control unit
In database, the specific action demonstrated as one-to-one gesture control PPT；Then user does in wifi signal fields and is used for
The gesture motion of PPT demonstrations, wireless network card gathers the CSI data messages of gesture to be identified, single with control by processing data information
Member to the CSI values of gesture to be identified matched with the CSI values of the certain gestures control action of storage after noise filtering, if waiting to know
The CSI values of certain gestures control action of the CSI values of other gesture motion with storing are matched, then PPT demonstration control devices make phase
It should respond, then wait user to make the gesture motion of next manipulation PPT demonstrations, if the CSI values of gesture motion to be identified
Mismatch, then postpone after 1s by processing data information and control unit control with the CSI values of the certain gestures control action of storage
Wireless network card reacquires the CSI data messages of user's gesture to be identified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215880.8A CN107102729A (en) | 2017-04-05 | 2017-04-05 | A kind of PPT Demonstration Control Systems based on CSI gesture identifications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215880.8A CN107102729A (en) | 2017-04-05 | 2017-04-05 | A kind of PPT Demonstration Control Systems based on CSI gesture identifications |
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| CN107102729A true CN107102729A (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710215880.8A Withdrawn CN107102729A (en) | 2017-04-05 | 2017-04-05 | A kind of PPT Demonstration Control Systems based on CSI gesture identifications |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416974A (en) * | 2018-01-23 | 2018-08-17 | 中国矿业大学 | Autoalarm based on radio channel status information and method |
| CN110069134A (en) * | 2019-03-29 | 2019-07-30 | 北京大学 | A method of hand aerial mobile track is restored using radio-frequency signal |
| CN114208216A (en) * | 2020-07-15 | 2022-03-18 | 谷歌有限责任公司 | Detecting contactless gestures using radio frequency |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573498A (en) * | 2015-12-15 | 2016-05-11 | 西北大学 | Gesture recognition method based on Wi-Fi signal |
| CN105807935A (en) * | 2016-04-01 | 2016-07-27 | 中国科学技术大学苏州研究院 | Gesture control man-machine interactive system based on WiFi |
-
2017
- 2017-04-05 CN CN201710215880.8A patent/CN107102729A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573498A (en) * | 2015-12-15 | 2016-05-11 | 西北大学 | Gesture recognition method based on Wi-Fi signal |
| CN105807935A (en) * | 2016-04-01 | 2016-07-27 | 中国科学技术大学苏州研究院 | Gesture control man-machine interactive system based on WiFi |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416974A (en) * | 2018-01-23 | 2018-08-17 | 中国矿业大学 | Autoalarm based on radio channel status information and method |
| CN110069134A (en) * | 2019-03-29 | 2019-07-30 | 北京大学 | A method of hand aerial mobile track is restored using radio-frequency signal |
| CN114208216A (en) * | 2020-07-15 | 2022-03-18 | 谷歌有限责任公司 | Detecting contactless gestures using radio frequency |
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Application publication date: 20170829 |