CN114639357A - System and method for triggering ghost elimination and refreshing on electronic ink screen - Google Patents
System and method for triggering ghost elimination and refreshing on electronic ink screen Download PDFInfo
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- CN114639357A CN114639357A CN202210269856.3A CN202210269856A CN114639357A CN 114639357 A CN114639357 A CN 114639357A CN 202210269856 A CN202210269856 A CN 202210269856A CN 114639357 A CN114639357 A CN 114639357A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008030 elimination Effects 0.000 title claims abstract description 15
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 15
- 230000001960 triggered effect Effects 0.000 claims description 18
- 238000002592 echocardiography Methods 0.000 claims description 12
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 206010047571 Visual impairment Diseases 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a system and a method for triggering ghost elimination refreshing on an electronic ink screen. By utilizing the radar sensor and the face recognition module, the timing control of the refreshing of the residual shadow of the ink screen can be more accurately mastered, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a system and a method for triggering ghost elimination and refreshing on an electronic ink screen.
Background
The display modes of the electronic ink screen at present comprise a complete refresh mode and a quick refresh mode. The full refresh mode displays the best results, but the refresh frequency is slow. The fast refresh mode has fast display speed, but has the residual image of the upper picture, and after the screen is refreshed for many times, the display effect can be obviously influenced because the accumulation of the residual image is more and more serious. If the two refreshing modes can be reasonably combined, the user experience can be improved.
Chinese patent applications CN105702217A, CN107277239A, CN107105106A, and CN106249919A respectively propose to perform an intelligent control of removing the ghost of the ink screen based on the eye state, the brightness measured by the light intensity, the distance measurement to detect the obstacle, and the shake measured by the acceleration sensor, but all have some disadvantages, such as the recognition rate of the eye to be detected, the distance measurement cannot exclude the user from using the ink screen in a close distance, and the acceleration cannot effectively exclude the misoperation.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention is directed to a system and method for triggering ghost elimination refresh on an electronic ink screen.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system for triggering a ghost elimination refresh on an electronic ink screen, comprising:
radar sensor: the electronic ink screen is arranged on one side of the electronic ink screen and used for sending out radar waves and receiving radar echoes;
a main control module: the distance value of the shelter in front of the electronic ink screen is calculated according to the difference value between the time of sending radar waves and the time of receiving radar echoes by the radar sensor, and whether the shelter in front of the electronic ink screen is a human face or not is identified according to the radar echoes; the electronic ink screen refreshing device is used for triggering the electronic ink screen to stop complete refreshing when no shielding object is detected in front of the electronic ink screen, or the distance value of the shielding object is smaller than a first preset distance threshold value, or the distance value of the shielding object is larger than a second preset distance threshold value; when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value, whether the shielding object is a human face is further judged, if the shielding object is the human face, the electronic ink screen is triggered to be completely refreshed according to a preset refreshing mechanism so as to eliminate the ghost, and if not, the electronic ink screen is triggered to stop complete refreshing.
Furthermore, the main control module is used for identifying whether the current shelter is a face right opposite to the face according to the radar echo, and when the fact that the shelter distance value in front of the electronic ink screen is larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value and the shelter is the face right opposite to the face is detected, the electronic ink screen is triggered to carry out ghost elimination refreshing according to a preset refreshing mechanism.
Furthermore, the main control module is used for triggering the electronic ink screen to perform GC refreshing once before triggering the electronic ink screen to stop refreshing, namely performing reset refreshing once when a user does not use the electronic ink screen in an interactive state, and completely removing the ghost.
The invention also provides a method for utilizing the system, which comprises the following specific processes:
the radar sensor sends out radar waves in real time or at regular time and receives radar echoes;
when the radar sensor does not receive radar echo within a set time length after sending a radar wave once, the main control module judges that no shelter exists in front of the electronic ink screen, and when the radar sensor receives the radar echo within the set time length, the distance value of the shelter in front of the electronic ink screen is calculated according to the difference value between the time of sending the radar wave and the time of receiving the radar echo by the radar sensor;
when detecting that no shielding object exists in front of the electronic ink screen, or the distance value of the shielding object is smaller than a first preset distance threshold value, or the distance value of the shielding object is larger than a second preset distance threshold value, triggering the electronic ink screen to stop complete refreshing; when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value, whether the shielding object is a human face is further identified according to radar echo, if the shielding object is the human face, the electronic ink screen is triggered to be completely refreshed according to a preset refreshing mechanism so as to eliminate the ghost, and otherwise, the electronic ink screen is triggered to stop complete refreshing.
Further, in the method, when the main control module identifies the shielding object, it is specifically identified whether the current shielding object is a face facing right, and when it is detected that the distance value of the shielding object in front of the electronic ink screen is greater than or equal to a first preset distance threshold value and less than or equal to a second preset distance threshold value and the shielding object is a face facing right, the electronic ink screen is triggered to perform ghost elimination and refresh according to a preset refresh mechanism.
Further, in the method, before triggering the electronic ink screen to stop refreshing, the main control module triggers the electronic ink screen to perform a GC refreshing, that is, performs a reset refreshing when the user does not use the electronic ink screen in an interactive state, so as to completely remove the ghost.
The invention has the beneficial effects that: according to the invention, by utilizing the radar sensor and the face recognition module, the timing control of the residual image refreshing of the ink screen can be more accurately mastered, the complete refreshing mode and the quick refreshing mode are better combined, and the user experience is improved.
Detailed Description
The present invention will be further described below, and it should be noted that the present embodiment is based on the technical solution, and a detailed implementation manner and a specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
The embodiment provides a system for triggering ghost elimination refresh on an electronic ink screen, which includes:
radar sensor: and the electronic ink screen is arranged on one side of the electronic ink screen and is used for sending out radar waves and receiving radar echoes.
The main control module: the distance value of the shelter in front of the electronic ink screen is calculated according to the difference value between the time of sending radar waves and the time of receiving radar echoes by the radar sensor, and whether the shelter in front of the electronic ink screen is a human face or not is identified according to the radar echoes; the electronic ink screen refreshing method comprises the steps of triggering the electronic ink screen to stop complete refreshing when detecting that no shielding object exists in front of the electronic ink screen (no person reads the electronic ink screen), or the distance value of the shielding object is smaller than a first preset distance threshold (the shielding object is too close), or the distance value of the shielding object is larger than a second preset distance threshold (the shielding object is too far); when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value (the reading range of the ink screen is normally used), whether the shielding object is a human face is further judged, if the shielding object is the human face, the electronic ink screen is triggered to carry out complete refreshing according to a preset refreshing mechanism so as to eliminate the ghost (the ghost elimination refreshing can be carried out at fixed time intervals, or the refreshing can be carried out when the set number of pages is turned over), and otherwise, the electronic ink screen is triggered to stop complete refreshing.
Furthermore, the main control module is used for identifying whether the current shelter is a face right opposite to the face according to the radar echo, and when the fact that the shelter distance value in front of the electronic ink screen is larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value and the shelter is the face right opposite to the face is detected, the electronic ink screen is triggered to carry out ghost elimination refreshing according to a preset refreshing mechanism. The refreshing is triggered when the face of the person is opposite to the electronic ink screen, so that the refreshing accuracy can be further improved.
It should be noted that a pre-trained face recognition model is preset in the main control module, specifically, a large amount of radar echo face data is used as training data in advance, and machine learning is performed through a neural network, so that whether the shelter in front of the current electronic ink screen is a face or not can be recognized according to the radar echo received by the radar sensor.
In this embodiment, the main control module is configured to trigger the electronic ink screen to perform a GC refresh before triggering the electronic ink screen to stop the refresh, that is, perform a reset refresh when the user does not use the electronic ink screen, so as to completely remove the ghost.
Example 2
The present embodiment provides a method using the system described in embodiment 1, which includes the following specific steps:
the radar sensor sends out radar waves in real time or at regular time and receives radar echoes;
when the radar sensor does not receive radar echo within a set time length after sending a radar wave once, the main control module judges that no shielding object exists in front of the electronic ink screen, and when the radar sensor receives the radar echo within the set time length, the distance value of the shielding object in front of the electronic ink screen is calculated according to the difference value of the time when the radar sensor sends the radar wave at this time and the time when the radar echo is received;
when detecting that no shielding object exists in front of the electronic ink screen, or the distance value of the shielding object is smaller than a first preset distance threshold value, or the distance value of the shielding object is larger than a second preset distance threshold value, triggering the electronic ink screen to stop complete refreshing; when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value, whether the shielding object is a human face is further identified according to radar echo, if the shielding object is the human face, the electronic ink screen is triggered to be completely refreshed according to a preset refreshing mechanism so as to eliminate the ghost, and otherwise, the electronic ink screen is triggered to stop complete refreshing.
Further, when the main control module identifies the shielding object, whether the current shielding object is the face right opposite is specifically identified, and when the shielding object distance value in front of the electronic ink screen is detected to be greater than or equal to a first preset distance threshold value and less than or equal to a second preset distance threshold value and the shielding object is the face right opposite, the electronic ink screen is triggered to carry out ghost elimination refreshing according to a preset refreshing mechanism.
In this embodiment, before triggering the electronic ink screen to stop refreshing, the main control module triggers the electronic ink screen to perform a GC refreshing, that is, performs a reset refreshing when the user does not use the electronic ink screen in an interactive state, so as to completely remove the ghost.
Various changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (6)
1. A system for triggering a ghost elimination refresh on an electronic ink screen, comprising:
radar sensor: the electronic ink screen is arranged on one side of the electronic ink screen and used for sending out radar waves and receiving radar echoes;
a main control module: the distance value of the shelter in front of the electronic ink screen is calculated according to the difference value between the time of sending radar waves and the time of receiving radar echoes by the radar sensor, and whether the shelter in front of the electronic ink screen is a human face or not is identified according to the radar echoes; the electronic ink screen refreshing device is used for triggering the electronic ink screen to stop complete refreshing when no shielding object is detected in front of the electronic ink screen, or the distance value of the shielding object is smaller than a first preset distance threshold value, or the distance value of the shielding object is larger than a second preset distance threshold value; when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value, whether the shielding object is a human face is further judged, if the shielding object is the human face, the electronic ink screen is triggered to be completely refreshed according to a preset refreshing mechanism so as to eliminate the ghost, and if not, the electronic ink screen is triggered to stop complete refreshing.
2. The system of claim 1, wherein the main control module is configured to recognize whether a current obstruction is a face facing right according to a radar echo, and when it is detected that an obstruction distance value before the electronic ink screen is greater than or equal to a first preset distance threshold and less than or equal to a second preset distance threshold and the obstruction is the face facing right, trigger the electronic ink screen to perform ghost elimination refresh according to a preset refresh mechanism.
3. The system of claim 1, wherein the main control module is configured to trigger the electronic ink screen to perform a GC refresh before triggering the electronic ink screen to stop refreshing, that is, perform a reset refresh when a user does not use the electronic ink screen in an interactive state, so as to completely remove an afterimage.
4. A method using the system of any one of claims 1-3, characterized by the specific process of:
the radar sensor sends out radar waves in real time or at regular time and receives radar echoes;
when the radar sensor does not receive radar echo within a set time length after sending a radar wave once, the main control module judges that no shielding object exists in front of the electronic ink screen, and when the radar sensor receives the radar echo within the set time length, the distance value of the shielding object in front of the electronic ink screen is calculated according to the difference value of the time when the radar sensor sends the radar wave at this time and the time when the radar echo is received;
when detecting that no shielding object exists in front of the electronic ink screen, or the distance value of the shielding object is smaller than a first preset distance threshold value, or the distance value of the shielding object is larger than a second preset distance threshold value, triggering the electronic ink screen to stop complete refreshing; when the distance value of the shielding object in front of the electronic ink screen is detected to be larger than or equal to a first preset distance threshold value and smaller than or equal to a second preset distance threshold value, whether the shielding object is a human face is further identified according to radar echo, if the shielding object is the human face, the electronic ink screen is triggered to be completely refreshed according to a preset refreshing mechanism so as to eliminate the ghost, and otherwise, the electronic ink screen is triggered to stop complete refreshing.
5. The method as claimed in claim 4, wherein when the main control module performs the obstruction recognition, it is specifically recognized whether the current obstruction is a face facing right, and when it is detected that the obstruction distance value before the electronic ink screen is greater than or equal to a first preset distance threshold value and less than or equal to a second preset distance threshold value and the obstruction is the face facing right, the electronic ink screen is triggered to perform the ghost elimination refresh according to a preset refresh mechanism.
6. The method as claimed in claim 4, wherein the main control module triggers the electronic ink screen to perform a GC refresh before triggering the electronic ink screen to stop refreshing, that is, performs a reset refresh when the user does not use the electronic ink screen in an interactive state, thereby completely removing the ghost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269856.3A CN114639357B (en) | 2022-03-18 | System and method for triggering ghost elimination refreshing on electronic ink screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269856.3A CN114639357B (en) | 2022-03-18 | System and method for triggering ghost elimination refreshing on electronic ink screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114639357A true CN114639357A (en) | 2022-06-17 |
| CN114639357B CN114639357B (en) | 2024-07-16 |
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| US20150179150A1 (en) * | 2013-12-23 | 2015-06-25 | Nathan R. Andrysco | Monitor resolution and refreshing based on viewer distance |
| CN105632416A (en) * | 2016-01-14 | 2016-06-01 | 龚东 | Electronic ink screen ghost shadow removing method, display method and corresponding electronic device |
| CN105702217A (en) * | 2016-01-14 | 2016-06-22 | 龚东 | Electronic ink screen ghosting removing method and display method, and corresponding electronic equipment |
| CN106249919A (en) * | 2016-08-24 | 2016-12-21 | 长沙丰灼通讯科技有限公司 | Electronic ink screen triggers ghost and eliminates the method refreshed |
| CN106951084A (en) * | 2017-03-20 | 2017-07-14 | 广东小天才科技有限公司 | Eyesight protection method and device |
| WO2020080403A1 (en) * | 2018-10-16 | 2020-04-23 | 国立大学法人筑波大学 | Image display device and image display method |
| CN111611192A (en) * | 2020-05-20 | 2020-09-01 | 掌阅科技股份有限公司 | Refreshing method of color screen reader, color screen reader and computer storage medium |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150179150A1 (en) * | 2013-12-23 | 2015-06-25 | Nathan R. Andrysco | Monitor resolution and refreshing based on viewer distance |
| CN104202483A (en) * | 2014-08-20 | 2014-12-10 | 厦门美图移动科技有限公司 | Display screen switch controller of mobile terminal |
| CN105632416A (en) * | 2016-01-14 | 2016-06-01 | 龚东 | Electronic ink screen ghost shadow removing method, display method and corresponding electronic device |
| CN105702217A (en) * | 2016-01-14 | 2016-06-22 | 龚东 | Electronic ink screen ghosting removing method and display method, and corresponding electronic equipment |
| CN106249919A (en) * | 2016-08-24 | 2016-12-21 | 长沙丰灼通讯科技有限公司 | Electronic ink screen triggers ghost and eliminates the method refreshed |
| CN106951084A (en) * | 2017-03-20 | 2017-07-14 | 广东小天才科技有限公司 | Eyesight protection method and device |
| WO2020080403A1 (en) * | 2018-10-16 | 2020-04-23 | 国立大学法人筑波大学 | Image display device and image display method |
| CN111611192A (en) * | 2020-05-20 | 2020-09-01 | 掌阅科技股份有限公司 | Refreshing method of color screen reader, color screen reader and computer storage medium |
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