CN102271274A - Method for improving performance of three-dimensional (3D) shutter glasses and hardware system - Google Patents
Method for improving performance of three-dimensional (3D) shutter glasses and hardware system Download PDFInfo
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- CN102271274A CN102271274A CN2011102670540A CN201110267054A CN102271274A CN 102271274 A CN102271274 A CN 102271274A CN 2011102670540 A CN2011102670540 A CN 2011102670540A CN 201110267054 A CN201110267054 A CN 201110267054A CN 102271274 A CN102271274 A CN 102271274A
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Abstract
The invention discloses a method for improving the performance of three-dimensional (3D) shutter glasses and a hardware system. The method comprises a frame synchronization signal judging method, a power consumption control method for a frame synchronization process, a blur elimination method and a ghost elimination method. By the method and the hardware system, the aims of optimizing synchronization effects and bettering the visual effects of a user can be fulfilled by using a relatively simpler scheme, and system power consumption is reduced at the same time of ensuring good 3D effects.
Description
Technical field
The present invention relates to a kind of method and hardware system, particularly a kind of raising fast gate-type 3D glasses performance methodology and hardware system
Background technology
The 3D glasses of main flow adopt 3 kinds of solutions nothing more than on the market at present: aberration formula, polarization type and initiatively fast gate-type.Fast gate-type 3D glasses mainly are to realize 3D effect by the refresh rate that improves picture, by picture is divided into two frame by frame, form two group of pictures of corresponding left eye and right eye, staggered continuously showing, Infrared Projector or radio frequency transmitter make left and right eyes see respective picture in the correct moment on the left and right sides eyeglass switch of synchro-shutter formula 3D glasses simultaneously.This technology can keep the original resolution of picture, allows the user enjoy real full HD 3D effect very like a cork.Weak point is fast gate-type shutter formula 3D glasses commonly used in the market, adopts discrete element to build control system mostly, the implementation complexity, and poor synchronization, power consumption is excessive.
Summary of the invention
The objective of the invention is to, a kind of method and hardware system of low power consumption fast gate-type 3D glasses is provided, it can realize optimizing synchronous effect with better simply scheme, improves user's visual effect, reduces the purpose of system power dissipation.
Technical scheme of the present invention: a kind of method that improves fast gate-type 3D glasses performance is characterized in that: in the course of the work, utilize the method for the power consumption control in the frame synchronizing process to reduce the power consumption of 3D glasses.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, in the course of the work, the method that also adopts frame synchronizing signal to judge is optimized synchronous effect, and is adopted the method for eliminating ghost and the method for eliminating ghost image to improve user's visual effect.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, the step of the method that described frame synchronizing signal is judged is:
Obtain synchronizing signal;
Analyze the synchronizing signal legitimacy.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, the method for the method of the power consumption control in the described frame synchronizing process is:
The cycle of 3D TV synchronousing signal is T, and T1 is the buffer time of opening the synchronous communication module, and the general value of n is less than 1/T; At the frame synchronizing signal place, fast gate-type 3D glasses are gone up the frame of 3D TV synchronously and are play, master chip is incited somebody to action communication close module immediately so, open the timer in the microcontroller simultaneously, and the time of timing t=(n*T-T1), the time arrives when undetermined, the open communication module, at least keep the width of 2T, wait for the received frame synchronizing signal; If receive frame synchronizing signal along saltus step and confirm as legal synchronizing signal, communication close module immediately then, finish a simultaneous operation, after this right and left eyes eyeglass of n in the synchronizing cycle switches to be finished voluntarily by timer internal in the microcontroller in the master chip, when the next synchronization frame signal of pre-estimation arrives, open communication module once more, again it is once proofreaied and correct after the affirmation synchronizing signal is legal; If do not receive frame synchronizing signal, then can be in 2T communication close module after the time, after the time of opening timing device timing t=(n*T-T1), the open communication module is waited for the received frame synchronizing signal once more, by that analogy; If do not receive frame synchronizing signal in a period of time, close the DCDC booster system of fast gate-type 3D glasses, do not receive synchronizing signal again after a period of time yet then from being advanced into park mode, the stand-by period of closing the DCDC booster system of fast gate-type 3D glasses and being advanced into park mode certainly can be adjusted according to actual conditions.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, the method for described elimination ghost is:
Have two inputs to be respectively on the eyeglass, input A and input B, the voltage of input A are V
A, the voltage of input B is V
BThere are two kinds of different modes to make eyeglass light tight, V
A＞V
BOr V
A＜V
BMaster chip control eyeglass the light tight of two kinds of different modes of hocketing.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, the method for described elimination ghost image is:
The cycle of 3D TV synchronousing signal is T, and round numbers n is that the synchronizing signal of 1/T serves as to carry out the primary calibration operation at interval with every n frequency; Master chip records the timer count value of n under the actual conditions or n+1 frame synchronizing signal, compare with theoretical value, get immediate synchronizing signal number N, and think that current what receive is N synchronizing signal, and this section time average is assigned in ensuing N the control unit.
In aforesaid a kind of method that improves fast gate-type 3D glasses performance, the method for described analysis synchronizing signal legitimacy is:
When using infrared communication module, the period T and the low level time K of frame synchronizing signal is recorded in the master chip, obtain frame synchronizing signal after, measured temporal information and preset value are compared, the information unanimity be exactly legal frame synchronizing signal;
Maybe when using wireless radio frequency modules, wireless radio frequency modules is based on the Address Recognition mechanism of self, and wireless transmission all comprises top end stops, synchronization character, user-defined array, CRC check; The wireless module with receiving that sends must meet in identical frequency channel, identical transmission form, user-defined array wants consistent, and CRC calibrates by just thinking a legal synchronizing signal.
Realize preceding method a kind of hardware system that improves fast gate-type 3D glasses performance, it is characterized in that comprise: master chip, master chip are connecting communication module, status indicator lamp, lithium battery, button, external charging interface and eyeglass respectively.
In aforesaid a kind of hardware system that improves fast gate-type 3D glasses performance, inner integrated power supply management kernel of described master chip and micro-control unit, the power management kernel is integrated with lower module, lithium cell charging administration module, LDO power module, DCDC boost module and H bridge switch circuit.
In aforesaid a kind of hardware system that improves fast gate-type 3D glasses performance, described communication module adopts infrared communication module or wireless radio frequency modules.
Compared with prior art, the present invention can realize optimizing synchronous effect with better simply scheme, improves the purpose of user's visual effect, reduces system power dissipation when guaranteeing excellent 3D effect.
Utilize master chip that the signal of being received by communication module is carried out frame synchronizing signal and judge, can optimize synchronous effect; Utilize the method for elimination ghost integrated in the master chip and the software of elimination ghost image method can improve user's visual effect, guarantee excellent 3D effect; The method of the power consumption control in the master chip in the integrated frame synchronizing process can reduce system power dissipation when guaranteeing excellent 3D effect.
Description of drawings
Fig. 1 is the structural representation of hardware system of the present invention;
Fig. 2 is a workflow diagram of the present invention;
Fig. 3 is a master chip structural representation of the present invention;
Fig. 4 is the embodiments of the invention signal schematic representations;
Fig. 5 is an embodiments of the invention power consumption control sequential chart;
Fig. 6 is that embodiments of the invention are eliminated ghost image method schematic diagram.
Reference numeral:
The 1-master chip, 2-communication module, 3-status indicator lamp, 4-lithium battery, 5-button, 6-external charging interface, 7-eyeglass, 8-micro-control unit, 9-power management kernel, 10-lithium cell charging administration module, 11-LDO power module, 12-DCDC boost module, 13-H bridge switch circuit.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, but not as the foundation to the present invention's restriction.
Embodiment
A kind of hardware system of low power consumption fast gate-type 3D glasses as shown in Figure 1, comprising: master chip 1, master chip 1 are connecting communication module 2, status indicator lamp 3, lithium battery 4, button 5, external charging interface 6 and eyeglass 7 respectively.
The model of master chip 1 is TPS65835.TPS65835 is a kind of novel PMU that is used for active shutter 3D glasses, as shown in Figure 3, inner integrated power supply management kernel 9 and micro-control unit 8, its perfect power management kernel is integrated with lower module: lithium cell charging administration module 10, LDO power module 11, DCDC boost module 12 and H bridge switch circuit 13.
Utilize a kind of method that improves fast gate-type 3D glasses performance of this hardware system to comprise: the method that frame synchronizing signal is judged; The method of the power consumption control in the frame synchronizing process; Eliminate the method for ghost; Eliminate the method for ghost image.
The step of the method that frame synchronizing signal is judged is: obtain synchronizing signal; Analyze the synchronizing signal legitimacy.
The method of the method for the power consumption control in the frame synchronizing process is: the cycle of 3D TV synchronousing signal is T, and T1 is the buffer time of opening synchronization module, and the value of n is less than 1/T; At the frame synchronizing signal place, fast gate-type 3D glasses are gone up the frame of 3D TV synchronously and are play, master chip is incited somebody to action communication close module immediately so, open the timer in the microcontroller simultaneously, and the time of timing t=(n*T-T1), the time arrives when undetermined, the open communication module, at least keep the width of 2T, wait for the received frame synchronizing signal; If receive the rising edge of frame synchronizing signal and confirm as legal synchronizing signal, communication close module immediately then, finish a simultaneous operation, after this right and left eyes eyeglass switches to be finished voluntarily by timer internal in the microcontroller in the master chip, when next synchronization frame signal arrives, it is once proofreaied and correct; If do not receive frame synchronizing signal, then can be in 2T communication close module after the time, after the time of opening timing device timing t=(n*T-T1), the open communication module is waited for the received frame synchronizing signal once more, by that analogy; If do not receive frame synchronizing signal in a period of time, close the DCDC booster system, do not receive synchronizing signal again after a period of time yet then from being advanced into park mode.
What eliminate the ghost method is: have two inputs to be respectively on the eyeglass, input A and input B, the voltage of input A are V
A, the voltage of input B is V
BThere are two kinds of different modes to make eyeglass light tight, V
A＞V
BOr V
A＜V
BMaster chip control eyeglass the light tight of two kinds of different modes of hocketing.
Eliminate ghost image method be: adopt following backoff algorithm.The cycle of 3D TV synchronousing signal is T, and round numbers n is that the synchronizing signal of 1/T serves as to carry out the primary calibration operation at interval with every n frequency; Master chip records the timer count value of n under the actual conditions or n+1 frame synchronizing signal, compare with theoretical value, get immediate synchronizing signal number N, and think that current what receive is N synchronizing signal, and this section time average is assigned in ensuing N the control unit.
The method of identification frame synchronizing signal is: have low level in the frame synchronizing signal, when communication module was obtained low level, confirmation signal was a frame synchronizing signal.
The method of analyzing the synchronizing signal legitimacy is: when using infrared communication module, the period T and the low level time K of frame synchronizing signal are recorded in the master chip, after obtaining frame synchronizing signal, measured temporal information and preset value are compared, the information unanimity be exactly legal frame synchronizing signal; Maybe when using wireless radio frequency modules, wireless radio frequency modules is based on the Address Recognition mechanism of self, can accurately judge 3D TV end transmission whether be legal frame synchronizing signal.
The lithium cell charging process can be divided into three phases: precharge, quick charge and charging termination; LDO power module 11 provides power supply for micro-control unit 8; DCDC 12 module adjustable output voltage: the 8V to 16V that boost are for full H bridge analog switch 13 provides power supply; Full H bridge is simulated 13 switches and is carried out internal control to realize systemic-function by micro-control unit 8.Each module in the scheme has realized that by the power management kernel whole process power consumption is controlled, thereby makes the product power consumption reduce greatly.Moreover, adopt this scheme to make board area reduce, weight obviously alleviates, and has saved production cost simultaneously.
The invention provides easy intelligence and battery management scheme efficiently---battery electric quantity detects and the charging process of intelligent and high-efficiency.Battery electric quantity detects can inform the situation of current electric quantity, thereby has avoided the micro-control unit 8 continuous power consumptions that detect electric weight and produce.The charging process of intelligent and high-efficiency was divided into for three steps: precharge, quick charge and charging termination, shortened the charging interval, and effectively avoid phenomenons such as over-charging of battery, guaranteed the safety of battery, prolonged battery useful life.
LDO11 provides the supply voltage of two kinds of specifications, makes it have very strong compatibility.LDO11 closes under park mode, and active mode is opened down.Micro-control unit 8 and part peripheral components thereof can be powered by LDO11, can effectively reduce the system standby power consumption.
The output of DCDC12 boost module can be configured by peripheral components, and output area 8V to 16V has more compatibility and practicality, meets the power requirement of the full H bridge switch of the present invention.The opening and closing of DCDC12 module are controlled simultaneously, can effectively reduce system power dissipation.
During use, as shown in Figure 2, communication module received frame synchronizing signal, and send micro-control unit 8 among the TPS65835 to, after TPS65835 is confirmed to be frame synchronizing signal, proofread and correct the switching deviation of right and left eyes, then switching sequence is outputed on the lens, realize that right and left eyes switches.Moreover, the design of external charging interface, for the user provides easy charging modes, the user need not often to change battery because of fast gate-type 3D glasses dead battery.？
In the present embodiment, the method that frame synchronizing signal is judged specifically:
Synchronous signal frequency is 60Hz, and as shown in Figure 4, promptly 16.66ms is an one-period, and comprising left-eye frame picture and right eye frame picture in this cycle, respectively to account for half the time be 8.33ms.T=16.66ms, K=100～200us; Look the synchronizing information of K signal as left-eye frame or right eye frame; Fast gate-type 3D glasses crystal oscillator frequency is 32.768KHz.
Fast gate-type 3D glasses catch low level time K and cycle time T, measured temporal information is analyzed, judge whether this frame synchronizing signal legal.
Confirm to receive be frame synchronizing signal after, main control chip is proofreaied and correct the deviation that left and right sides eyeglass switches, and finishes with televise a time of frame of 3D to synchronous working, and optimizes synchronous effect.
In the present embodiment, the method for the power consumption control in the frame synchronizing process specifically is, as shown in Figure 5:
3D TV synchronousing signal frequency is 60Hz, i.e. T=16.66ms.T1 is the buffer time of opening synchronization module, and such as infrared communication modular power source stabilization time, the RF module enters the reaction time of accepting state from sleeping to.The value of n is less than 60, and is relevant with 3D TV refreshing frequency.It in sequence number 1 frame synchronizing signal place, fast gate-type 3D glasses are gone up the frame of 3D TV synchronously and are play, master chip is incited somebody to action communication close module immediately so, while opening timing device, and the time of ms of timing t=(n*T-T1), the time arrives when undetermined, the open communication module, at least keep the width of 2T, wait for the received frame synchronizing signal.If receive the rising edge of frame synchronizing signal and confirm as legal synchronizing signal, then communication close module is immediately finished a simultaneous operation, and right and left eyes eyeglass after this switches to be finished voluntarily by the master chip timer internal, when next synchronization frame signal arrives, it is once proofreaied and correct; If do not receive frame synchronizing signal, then can be in 2T communication close module after the time, after the time of opening timing device timing t=(n*T-T1), the open communication module is waited for the received frame synchronizing signal once more, by that analogy; If do not receive frame synchronizing signal in 30 seconds, close the DCDC booster system, do not receive synchronizing signal after 1 minute yet from being advanced into park mode, reduced system power dissipation.
In the present embodiment, eliminate the ghost method specifically: have two inputs to be respectively on the eyeglass, input A and input B, the voltage of input A are V
A, the voltage of input B is V
BThere are two kinds of different modes to make eyeglass light tight, V
A＞V
BOr V
A＜V
BMaster chip control eyeglass the light tight of two kinds of different modes of hocketing improved user's visual effect.
In the present embodiment, eliminate the ghost image method and specifically be, as shown in Figure 6:
Adopt following backoff algorithm.The cycle of 3D TV synchronousing signal is 60Hz, round numbers 32, and the synchronizing signal that is 60Hz with per 32 frequencies serves as to carry out the primary calibration operation at interval; Master chip records the timer count value of the 32nd or the 33rd frame synchronizing signal under the actual conditions, compare with theoretical value, get immediate synchronizing signal number 32, and think that current what receive is the 32nd synchronizing signal, and this section time average be assigned to ensuing 32 times control unit in, the control timing and the synchronizing signal that occur down with the compensation low power operation produce phase deviation, improve user's visual effect.。
Present embodiment has realized that based on TPS65835 low-voltage detection, charging end power supply detect and intelligent charge control.Full H bridge analog switch under the resting state, the power supply control of DCDC boost module and LDO module.Under the mode of operation, can be effectively and the 3D TV realize eliminating ghost synchronously, phenomenons such as flicker and ghost image are for the user provides good visual enjoyment.Infrared communication: the park mode power consumption is 10uA, and the mode of operation power consumption is＜700uA.Twireless radio-frequency communication: the park mode power consumption is 10uA, and the mode of operation power consumption is＜700uA.
Claims (10)
1. method that improves fast gate-type 3D glasses performance is characterized in that: in the course of the work, utilize the method for the power consumption control in the frame synchronizing process to reduce the power consumption of 3D glasses.
2. require 1 described a kind of method that improves fast gate-type 3D glasses performance as requested, it is characterized in that: in the course of the work, the method that also adopts frame synchronizing signal to judge is optimized synchronous effect, and adopts the method for eliminating ghost and the method for eliminating ghost image, improves user's visual effect.
3. require 1 described a kind of method that improves fast gate-type 3D glasses performance as requested, it is characterized in that, the step of the method that described frame synchronizing signal is judged is:
Obtain synchronizing signal;
Analyze the synchronizing signal legitimacy.
4. require 1 described a kind of method that improves fast gate-type 3D glasses performance as requested, it is characterized in that the method for the power consumption control in the described frame synchronizing process is:
The cycle of 3D TV synchronousing signal is T, and T1 is the buffer time of opening the synchronous communication module, and the general value of n is less than 1/T; At the frame synchronizing signal place, fast gate-type 3D glasses are gone up the frame of 3D TV synchronously and are play, master chip is incited somebody to action communication close module immediately so, open the timer in the microcontroller simultaneously, and the time of timing t=(n*T-T1), the time arrives when undetermined, the open communication module, at least keep the width of 2T, wait for the received frame synchronizing signal; If receive frame synchronizing signal along saltus step and confirm as legal synchronizing signal, communication close module immediately then, finish a simultaneous operation, after this right and left eyes eyeglass of n in the synchronizing cycle switches to be finished voluntarily by timer internal in the microcontroller in the master chip, when the next synchronization frame signal of pre-estimation arrives, open communication module once more, again it is once proofreaied and correct after the affirmation synchronizing signal is legal; If do not receive frame synchronizing signal, then can be in 2T communication close module after the time, after the time of opening timing device timing t=(n*T-T1), the open communication module is waited for the received frame synchronizing signal once more, by that analogy; If do not receive frame synchronizing signal in a period of time, close the DCDC booster system of fast gate-type 3D glasses, do not receive synchronizing signal again after a period of time yet then from being advanced into park mode.
5. require 2 described a kind of methods that improve fast gate-type 3D glasses performance as requested, it is characterized in that the method for described elimination ghost is:
Have two inputs to be respectively on the eyeglass, input A and input B, the voltage of input A are V
A, the voltage of input B is V
BThere are two kinds of different modes to make eyeglass light tight, V
A＞V
BOr V
A＜V
BMaster chip control eyeglass the light tight of two kinds of different modes of hocketing.
6. require 2 described a kind of methods that improve fast gate-type 3D glasses performance as requested, it is characterized in that the method for described elimination ghost image is:
The cycle of 3D TV synchronousing signal is T, and round numbers n is that the synchronizing signal of 1/T serves as to carry out the primary calibration operation at interval with every n frequency; Master chip records the timer count value of n under the actual conditions or n+1 frame synchronizing signal, compare with theoretical value, get immediate synchronizing signal number N, and think that current what receive is N synchronizing signal, and this section time average is assigned in ensuing N the control unit.
7. require 3 described a kind of methods that improve fast gate-type 3D glasses performance as requested, it is characterized in that the method for described analysis synchronizing signal legitimacy is:
When using infrared communication module, the period T and the low level time K of frame synchronizing signal is recorded in the master chip, obtain frame synchronizing signal after, measured temporal information and preset value are compared, the information unanimity be exactly legal frame synchronizing signal;
Maybe when using wireless radio frequency modules, wireless radio frequency modules is based on the Address Recognition mechanism of self, and wireless transmission all comprises top end stops, synchronization character, user-defined array, CRC check; The wireless module with receiving that sends must meet in identical frequency channel, identical transmission form, user-defined array wants consistent, and CRC calibrates by just thinking a legal synchronizing signal.
8. realize a kind of hardware system that improves fast gate-type 3D glasses performance of the described method of the arbitrary claim of claim 1～7, it is characterized in that, the hardware system of described low power consumption fast gate-type 3D glasses comprises: master chip (1), master chip (1) are connecting communication module (2), status indicator lamp (3), lithium battery (4), button (5), external charging interface (6) and eyeglass (7) respectively.
9. require 8 described a kind of hardware systems that improve fast gate-type 3D glasses performance as requested, it is characterized in that: inner integrated power supply management kernel (9) of described master chip (1) and micro-control unit (8), power management kernel (9) is integrated with lower module, lithium cell charging administration module (10), LDO power module (11), DCDC boost module (12) and H bridge switch circuit (13).
10. require 9 described a kind of hardware systems that improve fast gate-type 3D glasses performance as requested, it is characterized in that: described communication module (2) adopts infrared communication module or wireless radio frequency modules.
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| CN102271274B (en) | 2013-05-01 |
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