CN100407761C - Device of controlling receiving destance and authority for digital TV set - Google Patents
Device of controlling receiving destance and authority for digital TV set Download PDFInfo
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- CN100407761C CN100407761C CN2006100371793A CN200610037179A CN100407761C CN 100407761 C CN100407761 C CN 100407761C CN 2006100371793 A CN2006100371793 A CN 2006100371793A CN 200610037179 A CN200610037179 A CN 200610037179A CN 100407761 C CN100407761 C CN 100407761C
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Abstract
The apparatus senses and identifies different users by using an infrared scan device so as to remind users of the watching distance. It comprises an infrared scan device, a video camera, a distance and body-height calculating module, a buffer, a matching module, a processor, a controller, a database, a database read-write module and a timing module.
Description
Technical field
The present invention relates to a kind of viewing distance of control figure TV and the device of authority, specifically, relate to a kind of man-machine information interaction technology, promptly by the infrared scanning device perception and discern different users, thereby whether distance and the program of reminding the user to watch according to the parameter of prior setting be suitable.
Background technology
Development and popularization along with digital home, the function of Digital Television from strength to strength, programme content is greatly abundant, in people's life, occupy more and more important position, therefore Digital Television just can not be ignored the injury of people's eyes, particularly to the teenager, a lot of teenagers cause eyesight to descend because of not noting viewing distance and time.While, adult program, game shows and terrified programs or the like were all not beneficial to the teenager along with program is abundanter, and it is also extremely urgent therefore the program viewing authority to be set.The program viewing authority just is meant the programme content that the user is watched, defining of period of watching and the time span of watching or the like a series of conditions, popular just be meant the restriction specific user can see what program and channel, can not see what program and channel, and when the user can see, how long can see or the like.
The Wang Lei of China on September 14th, 2005 disclosed patent 200410008817. * proposition scheme can to carry out man-machine range information mutual; but weak point is arranged also; wherein do not consider some concrete conditions; such as; the user only passes by in front of television set; television set also can be indiscriminately imitated the information improperly of output on screen " distance is too near, notes a protection eyes " class, the alarm of also will sounding.The user of all ages and classes section also should be different to the requirement of viewing distance in addition, and treating the adult should be not the same with the teenager with the elderly.
Common program viewing authority is provided with by program being locked or remote controller being locked, but all will input password at every turn, and all is same password usually, trouble so not only, and easily be cracked, and dangerous.Simultaneously can not prevent that user other users when watching of authority from stealing a glance at.It is invalid at the restricted passage of watching period and viewing time length automatic shutdown being set, and the user opens once more and gets final product, and does not play effect.Present technology all can not reach the instant and automatic identification of the user being watched authority.
Summary of the invention
Deficiency at above situation, the present invention proposes a kind of viewing distance of control figure TV and the device of authority, make that the distance between people and the Digital Television is more accurate alternately, more humane, and do not need to input password and just can judge the watch authority of user automatically program, make the control user realize automation, prevent that effectively the teenager from stealing a glance at unsuitable healthy program, saw TV and seen many TV programme in inappropriate time the authority of watching of program.
A kind of viewing distance of control figure TV and the device of authority comprise infrared scanning device, camera head, distance and height computing module, buffer memory, matching module, processor, control module, database, database read writing module, timing module.
Described infrared scanning device is used to launch infrared ray, perception user's appearance.Wherein the induction zone of this scanning means is to be the center with the video screen, is a fan type zone in the certain radius before the television set of radius with the distance of distance screen.
Described camera head is used to absorb user's face-image.
Described distance and height computing module are used to measure the height that is positioned at the personage before the device and apart from the distance of TV.
Described buffer memory is used to store the information that distance and height computing module and camera head obtain.Wherein stored information specifically comprises the face-image of user apart from distance radius, position coordinates, height and the user of screen.
Described matching module is determined user identity by the information in comparison database and the buffer memory.Wherein matching algorithm comprise the maximum cross correlation algorithm, the image matching algorithm that cuts based on figure and based on the rapid image matching algorithm of template sampling.
Described processor is used to coordinate each module work, and the condition that arrives is analyzed and judged.
Described control module is used to receive the instruction of being sent by processor, and control of video and audio output apparatus are made correlated response.
Described database is used for storage system information.System information comprises user's aspectual character information table and program viewing authority list.
Described database read writing module is used for the database record is read and write.
The control procedure of the viewing distance of described control figure TV and the device of authority is:
1) when the user comes into infrared ray perception zone, all users in the infrared scanning device scanning induction zone;
2) by distance and height computing module calculate respectively each user height, apart from the distance of screen and the coordinate at place, these information are deposited in buffer memory, so that each user is handled one by one;
3) processor at each user notification timing module opening entry its in the time that current position coordinates stops, if the coordinate change is just again from zero timing.Being located at the current location time of staying is t ', and whether weigh the user is t in the time of staying of seeing TV.If t '＞t illustrates that this user is seeing TV, then, face-image is deposited in buffer memory by of the face shooting of processor notice camera head to this user, forward step 4) to.Otherwise the user may only pass by, and camera head is not made a response;
4) processor driving data storehouse module for reading and writing begins the record of all users of table 1 in the ergodic data storehouse, by matching module all records are complementary with this user's height and positive face-image one by one, if find the record of the matching rate that reaches regulation, then determine this user identity, forward step 5) to.Otherwise, have no right to watch TV with regard to this user, forward step 9) to;
5) this user's of table 2 record in the reading database reads " whether limited " list item earlier, if this user is not limited, then this user can skip the check of all restrictive conditions, and full powers are used this Digital Television, otherwise forward step 6) to;
6) obtain current program and the current system time of playing, if conflict mutually with the content of this user " do not allow watch channel " or " unallowed watch the period " list item of table 2 in database, illustrate that this user can not see TV or can not see this program in this time, then forwards step 9) to; Otherwise forward step 7) to;
7) from buffer memory, take out the distance of this user,, illustrate that then this hurts user's eyesight apart from meeting, forwards step 9) to if conflict mutually with the content of this user " viewing ratio scope " list item of table 2 in database apart from television set; Otherwise, forward step 8) to;
8) processor drives the time span that this user of timing module opening entry sees TV, if reached the restriction of table 2 couple this user in the database " allow watch time span " in certain time, illustrate that this user has seen too for a long time, then forwards step 9) to; Otherwise, the TV normal play.Recording user is seen the operation of the time span of TV: as long as this user in the viewing ratio scope, just continues timing,, then interrupt timing automatically midway if this user leaves this scope above certain hour, otherwise the accumulation timing;
9) processor sends control corresponding and instructs to control module, and the control module control display screen shows corresponding warning prompt information, the corresponding warning of control audio equipment output simultaneously voice suggestion, even can control power supply and cut off automatically and shut down.Warning several times or after each exceptional condition removal, analysis and processing module can be sent and recover instruction to control module, removes the display reminding information and the voice suggestion of being correlated with, and recovers normal play.
Effect of the present invention is as follows:
1) by increase the investigation of the time that the user is stopped in inappropriate viewing distance, judges that the user is seeing TV or only passing by, thereby make man-machine range information more accurate alternately, avoided too much miscue information.
2) by increasing different users is discerned in the scanning of user's aspectual character information, judge the viewing distance scope of the best of its correspondence, make man-machine range information more accurate alternately, embody hommization.
3) by setting up user right and the corresponding database of user's aspectual character information, utilize infrared scan to read user's aspectual character information and remove to look into database, thereby realized automation to the control of user's program viewing authority, avoided all inputing password and the trouble of password leakage at every turn, do not had the user of this authority to steal a glance in the time of can also preventing from watching, can be retrained the time of watching yet.
Description of drawings
Fig. 1 is user and the mutual flow chart of Digital Television range information;
Fig. 2 is a flow chart of controlling user's program viewing authority automatically;
Fig. 3 is the viewing distance of control figure TV and the schematic representation of apparatus of authority;
Fig. 4 is the viewing distance of control figure TV and the flow chart of authority;
Fig. 5 is the schematic diagram of database of setting up user's program viewing authority.
Embodiment
Below in conjunction with accompanying drawing this device is further introduced.
1, invention thought
Be illustrated in figure 1 as user and the mutual flow chart of Digital Television range information; according to convention; if the user is seeing that TV programme can rest on a position a period of time usually; iff being to pass by before television set that can not rest on a position usually too of a specified duration, judge whether the user is seeing TV so can whether move with the time of staying according to user's position.A time period t is set is used to weigh the user and whether is seeing TV,, illustrate that then the user is seeing TV, otherwise only pass by if the user surpasses this time period t in certain position time of staying.Set up a database, wherein preserve user's characteristic information and corresponding viewing ratio scope etc.Read the height of the user before the television set and apart from the distance and the position coordinates of video screen by noctovisor scan, when beginning to see TV, the user obtains the face-image in user front by camera head, judge according to storing user's height and face-image and each parameter in the database in advance whom this user is then, and whether in its viewing ratio scope, if just needn't make a response, if not further investigate the time t ' that this user stops in certain position.If t '＞t then illustrate that the user is seeing TV, this device will activating alarm information be given television set, TV on screen, increase the output information " * * * (name) too near from screen; note vision protection; please far away from screen ", also can send information to audio frequency apparatus simultaneously and send voice alarm; If t '＜=t then illustrate that the user only passes by need not to make a response.
Be illustrated in figure 2 as the flow chart of automatic control user's program viewing authority, the program viewing authority just is meant the programme content that the user is watched, defining of period of watching and the time span of watching or the like a series of conditions, popular just be meant the restriction specific user can see what program and channel, can not see what program and channel, and when the user can see, how long can see or the like.Read the face-image in user's height and front and be stored in database by an infrared scan, the authority of watching program of its correspondence is set simultaneously.When turning on, TV reads the height of the user before the television set and apart from the distance and the position coordinates of video screen by noctovisor scan, when beginning to see TV, the user obtains the face-image in user front by camera head, judge according to storing user's height and face-image and each parameter in the database in advance whom this user is then, draw their program viewing authority separately by reading database then.If the stranger that can not discern sees TV, then this device will shield video screen or shutdown.Be not suitable for certain user in case find current program, channel and the broadcast period of playing, this device just sends warning information to television set, television set in time shield this program (such as showing blue screen) and by the screen display information " this program is not suitable for * * * (name) watch; please note that soul is healthy " or " this period is not suitable for * * * (name) see TV ", perhaps export voice suggestion by audio frequency apparatus.If the time span that all are normally watched with regard to each user of opening entry, if arrived someone time restriction, just send warning information, screen display " * * * (name) see that the TV time is oversize; have a rest ", perhaps by audio frequency output voice suggestion.
2, module declaration
A kind of as shown in Figure 3 viewing distance of control figure TV and the device of authority comprise infrared scanning device, camera head, distance and height computing module, buffer memory, matching module, processor, control module, database, database read writing module, timing module.
1) infrared scanning device
Infrared scan is used to launch infrared ray, perception user's appearance.It is installed according to concrete television model, foundation is the center with the video screen, distance with the distance screen is the polar coordinates of radius, the interior fan type zone of certain radius was induction zone before television set then was set, by shielding being set at the emission source place, control infrared ray can only shine this zone, when the user comes into this zone at once by the infrared scanning device perception.
2) camera head
Camera head is used to absorb user's face-image.Because facial reflective the strongest, so it is facial to be easy to identification by intensity of reflected light.If judge that by timing module the user is seeing TV, then camera head starts its positive or approximate positive face-image of picked-up, because the user is when seeing TV, in the face of screen all is frontal face or approximate positive usually.
3) distance and height computing module
Distance and height computing module by measure infrared light and catoptrical phase difference calculate this user apart from the distance radius of screen, further determine user's polar coordinates position by radiative angle, the reverberation angle that reflects respectively by head (peak) and foot's (minimum point) calculate user's height.Five or six members only in the one family just can distinguish each member according to height, largely so height is an important parameter.Because the user may sit down or squat down, so can survey several times, getting its maximum height (height when standing) is correct height more.Distance radius, position coordinates and height are deposited in buffer memory.
4) buffer memory
Buffer memory is used to store the user transmitted by distance and height computing module distance radius, position coordinates and the height apart from screen, and the user's of camera head scanning face-image.
5) matching module
Matching module is by each user's who preserves in the database read writing module sense data storehouse face-image and height, one by one with buffer memory in this user's of transmitting face-image and height do coupling, images match can adopt multiple algorithm to realize, such as the maximum cross correlation algorithm, the image matching algorithm that cuts based on figure is based on rapid image matching algorithm of template sampling or the like.If find the record of the matching rate that reaches regulation, then determine this user identity.If do not find the record of the matching rate that reaches regulation, then deny this user.
6) processor
Processor is used to coordinate each module work, and the condition that arrives is analyzed and judged whether surpass setting such as judgement time and distance or the like.
7) control module
Control module receives the instruction of being sent by processor, and control of video and audio output apparatus are made correlated response.
8) database
As shown in Figure 5, database comprises two tables, table 1: user's aspectual character information table; Table 2: program viewing authority list.Initial parameter setting needs all users single pass before television set in the family, and device obtains separately height and face-image and is recorded in table 1, and the user fills in table 2 according to actual conditions, and information is provided with password locking after preserving.
9) database read writing module
The database read writing module is driven by processor and goes record in the database is read and write.
10) timing module
Timing module drives its writing time by processor.
3, Zhuan Zhi control flow
Be illustrated in figure 4 as the viewing distance and the authority flow chart of control figure TV.
Claims (6)
1. the device of the viewing distance of a control figure TV and authority is characterized in that this device comprises infrared scanning device, camera head, distance and height computing module, buffer memory, matching module, processor, control module, database, database read writing module, timing module:
Infrared scanning device is used to launch infrared ray, perception user's appearance;
Camera head is used to absorb user's face-image;
Distance and height computing module are used to measure the height that is positioned at the people before the device and apart from the distance of TV, and the residing coordinate position of people;
Buffer memory is used to store the information that distance and height computing module and camera head obtain;
Matching module is determined user identity by the information in comparison database and the buffer memory;
Processor is used to coordinate each module work, and the condition that arrives is analyzed and judged;
Control module is used to receive the instruction of being sent by processor, and control of video and audio output apparatus are made correlated response;
Database is used to deposit required characteristic information of identification user and user's authority configuration information;
The database read writing module is used for the database record is read and write.
2. the viewing distance of control figure TV according to claim 1 and the device of authority, the induction zone that it is characterized in that described infrared scanning device is for being the center with the video screen, is the fan type zone in the certain radius before the television set of radius with the distance of distance screen.
3. the viewing distance of control figure TV according to claim 1 and the device of authority, the information that it is characterized in that described buffer memory comprises user that distance and height computing module transmit distance radius, position coordinates and the height apart from screen, and the user's of camera head scanning face-image.
4. the viewing distance of control figure TV according to claim 1 and the device of authority is characterized in that described matching module matching algorithm comprises the maximum cross correlation algorithm, the image matching algorithm that cuts based on figure and based on the rapid image matching algorithm of template sampling.
5. the viewing distance of control figure TV according to claim 1 and the device of authority is characterized in that described database information comprises user's aspectual character information table and program viewing authority list.
6. the viewing distance of control figure TV according to claim 1 and the device of authority is characterized in that the control procedure of described device is:
1) when the user comes into infrared ray perception zone, all users in the infrared scanning device scanning induction zone;
2) by distance and height computing module calculate respectively each user height, apart from the distance of screen and the coordinate at place, these information are deposited in buffer memory, so that each user is handled one by one;
3) processor is at its time in the current position coordinates stop of each user notification timing module opening entry, whether if just again from zero timing, being located at the current location time of staying is t ' for coordinate change, weighing the user is t in the time of staying of seeing TV, if t '＞t, illustrate that this user is seeing TV, then, face-image is deposited in buffer memory by of the face shooting of processor notice camera head to this user, forward step 4) to, otherwise the user may only pass by, and camera head is not made a response;
4) processor driving data storehouse module for reading and writing begins the record of all users of table 1 in the ergodic data storehouse, by matching module all records are complementary with this user's height and positive face-image one by one, if find the record of the matching rate that reaches regulation, then determine this user identity, forward step 5) to, otherwise, have no right to watch TV with regard to this user, forward step 9) to;
5) this user's of table 2 record in the reading database reads " whether limited " list item earlier, if this user is not limited, then this user can skip the check of all restrictive conditions, and full powers are used this Digital Television, otherwise forward step 6) to;
6) obtain current program and the current system time of playing, if conflict mutually with the content of this user " do not allow watch channel " or " unallowed watch the period " list item of table 2 in database, illustrate that this user can not see TV or can not see this program in this time, then forwards step 9) to; Otherwise forward step 7) to;
7) from buffer memory, take out the distance of this user apart from television set, if conflict mutually, illustrate that then this hurts user's eyesight apart from meeting, forwards step 9) to the content of this user " viewing ratio scope " list item of table 2 in database, otherwise, forward step 8) to;
8) processor drives the time span that this user of timing module opening entry sees TV, if reached the restriction of table 2 couple this user in the database " allow watch time span " in certain time, illustrate that this user has seen too for a long time, then forward step 9) to, otherwise, the TV normal play, recording user is seen the operation of the time span of TV: as long as this user is in the viewing ratio scope, just continue timing, if this user leaves this scope above certain hour midway, then interrupt timing automatically, otherwise the accumulation timing;
9) processor sends control corresponding and instructs to control module, the control module control display screen shows corresponding warning prompt information, the corresponding warning of control audio equipment output simultaneously voice suggestion, even can control power supply and automatically cut off and shut down, after warning several times or each exceptional condition removes, analysis and processing module can be sent and recover instruction to control module, removes relevant display reminding information and voice suggestion, recovers normal play.
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| CN2006100371793A CN100407761C (en) | 2006-08-24 | 2006-08-24 | Device of controlling receiving destance and authority for digital TV set |
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| CN2006100371793A CN100407761C (en) | 2006-08-24 | 2006-08-24 | Device of controlling receiving destance and authority for digital TV set |
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| CN100407761C true CN100407761C (en) | 2008-07-30 |
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| WO2012153499A1 (en) * | 2011-05-10 | 2012-11-15 | パナソニック株式会社 | Display device, display method, integrated circuit, program |
| CN102679956B (en) * | 2012-04-24 | 2016-01-20 | 深圳Tcl新技术有限公司 | Detect user and watch the method for TV distance, system and televisor |
| CN103794191A (en) * | 2012-10-31 | 2014-05-14 | 乐金电子(中国)研究开发中心有限公司 | Method and display equipment for automatic delayed screen adjustment |
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| CN103634646A (en) * | 2013-11-15 | 2014-03-12 | 四川长虹电器股份有限公司 | Method for reminding viewing distance away from TV |
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| CN106028148A (en) * | 2016-06-29 | 2016-10-12 | 乐视控股（北京）有限公司 | Prompting method and device for television watching |
| DE112017003382T5 (en) * | 2016-07-04 | 2019-07-25 | Mohamed Dirani | DEVICE AND METHOD FOR MONITORING A DEVICE UTILIZATION |
| CN106454515A (en) * | 2016-10-31 | 2017-02-22 | 四川长虹电器股份有限公司 | Intelligent television playback control system and method |
| CN109963195A (en) * | 2019-04-01 | 2019-07-02 | 深圳聪明目智能科技有限公司 | A kind of sight protectio method and device thereof applied to television set |
| CN111639012A (en) * | 2020-06-12 | 2020-09-08 | 广西世纪创新显示电子有限公司 | Control system and control method of display for protecting eyesight of young and young children |
| CN112351339A (en) * | 2020-10-16 | 2021-02-09 | 海狸文创科技(深圳)有限公司 | Protection device and protection method for preventing children from watching television in short distance |
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