CN103491301A - System and method for regulating and controlling camera of electronic equipment - Google Patents
System and method for regulating and controlling camera of electronic equipment Download PDFInfo
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- CN103491301A CN103491301A CN201310433257.1A CN201310433257A CN103491301A CN 103491301 A CN103491301 A CN 103491301A CN 201310433257 A CN201310433257 A CN 201310433257A CN 103491301 A CN103491301 A CN 103491301A
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Abstract
The invention relates to the technical field of electronic equipment, and provides a system and method for regulating and controlling a camera of electronic equipment. The system comprises a microphone array, a decoder, a microprocessor, a camera position regulation unit and a manual regulation device. According to the system for regulating and controlling the camera of the electronic equipment, the built-in camera is automatically regulated through the microphone array, the decoder, the microprocessor and the camera position regulation unit, meanwhile, the built-in camera is manually regulated through the manual regulation device, the microprocessor and the camera position regulation unit, and therefore the mode that automatic regulation and manual regulation of the camera are combined is achieved. When errors exist in the automatic regulation and the required effect can not be achieved, fine regulation can be conducted through the manual regulation, the effect can be better, and auditory sense experience with the better effect is provided for users.
Description
Technical field
The invention belongs to technical field of electronic equipment, relate in particular to a kind of electronic equipment camera regulator control system and method.
Background technology
The auditory localization technology is to utilize acoustics and electronic installation to receive and process acoustic field signal, to determine a kind of technology of nature sound source or artificial sound source position, very wide application prospect is arranged.According to the difference of detection mode, the auditory localization technology is divided into two kinds of Active Acoustic location and passive acoustic fix rangings, and the Active Acoustic location comprises emitter and receiving system, for example uses radar outwards to transmit, and judges the position of target according to the character of echo; The Passive Positioning technology only has receiving system and there is no emitter, with traditional Active Acoustic location technology, compares, and it has the disguised characteristics that by force, are not subject to Electromagnetic Interference.
Most electronic product equipments on market, for example smart TV and PC hold, the built-in camera all used, its visual angle is fixed, and needs the artificial angle of adjusting as required camera, can't realize the automation adjusting.But some current cutting edge technologies (man-machine interaction based on gesture) are all linked up with electronic components such as camera and MIC, if the accessory product can't be realized intellectuality, will certainly affect visual impact and comfortable enjoyment that the complete machine of electronic product equipment brings to the consumer.
Summary of the invention
The object of the present invention is to provide a kind of electronic equipment camera regulator control system, be intended to solve the built-in camera of electronic equipment in prior art and need manual adjustments, it realizes that intelligent degree is lower, incompatible with current techniques development, affect the problem of electronic equipment user's visual impact and comfortable enjoyment.
The present invention is achieved in that a kind of electronic equipment camera regulator control system, and described system specifically comprises:
Arrange and be arranged on electronic equipment according to certain geometric position, for receiving the microphone array of sound-source signal, described microphone array comprises several transaudient unit;
The decoder be electrically connected to microphone array, decoder carries out respectively filtering, pattern conversion for the sound-source signal that described microphone array is received, and obtains the signal of telecommunication;
The microprocessor be electrically connected to decoder, the signal of telecommunication that described microprocessor obtains described decoder carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted;
The camera position adjustment unit be connected with described microprocessor, described camera position adjustment unit connects described camera, and the angle parameter that the camera that the camera position adjustment unit calculates according to described microprocessor need to be adjusted carries out the angle orientation adjustment to described camera;
Be connected with microprocessor, for receiving user's input message, generate the manual adjusting device of camera manual adjustments control signal.
As a kind of improved plan, described decoder specifically comprises:
The sound-source signal that described microphone array is received carries out filtering, obtains the filtration module of voice signal;
Be connected with described filtration module, for the voice signal that described filtration module filtering is finished dealing with, carry out the pattern conversion, obtain the modular converter of the signal of telecommunication.
As a kind of improved plan, described microprocessor specifically comprises:
The time delay estimation module, for calculating the time difference of the different transaudient unit of sound-source signal arrival microphone array;
The orientation estimation module is connected with described time delay estimation module, estimates the position of sound source for the geometric position of time difference of calculating according to described time delay estimation module and described microphone array.
As a kind of improved plan, described camera position adjustment unit specifically comprises:
The driving chip be electrically connected to described microprocessor;
With the stepping motor that described driving chip is connected, described stepping motor connects described camera.
As a kind of improved plan, described manual adjusting device specifically comprises:
Be arranged in electronic equipment, the signal be connected with described microprocessor receives hair device, and described signal receives hair device for receiving the camera angle adjustment instruction that the far-end remote control device is output or control panel electronic equipment produces;
Receive with described signal the remote controller that the hair device wireless telecommunications are connected, be provided with in described remote controller with described signal and receive the corresponding signal generator of hair device;
Receive hair device with described signal and be electrically connected to, for receiving the key information of user's input, generate the control panel of camera angle adjustment instruction.
Another object of the present invention is to provide electronic equipment camera regulate and control method, described method comprises the steps:
Microphone array receives and exports sound-source signal;
Decoder carries out respectively filtering, pattern conversion to the sound-source signal of described microphone array output, obtains the signal of telecommunication;
The signal of telecommunication that microprocessor obtains described decoder carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted;
The angle parameter that the camera that the camera position adjustment unit calculates according to described microprocessor need to be adjusted carries out the angle orientation adjustment to described camera.
As a kind of improved plan, described decoder carries out respectively filtering, pattern conversion to the sound-source signal of described microphone array output, and the step that obtains the signal of telecommunication specifically comprises:
The sound-source signal that filtration module receives described microphone array carries out filtering, obtains voice signal;
The voice signal that modular converter is finished dealing with described filtration module filtering carries out the pattern conversion, obtains the signal of telecommunication.
As a kind of improved plan, the signal of telecommunication that described microprocessor obtains described decoder carries out that time delay is estimated and the orientation estimation, and the step that obtains the angle parameter that camera need to adjust specifically comprises the steps:
The time delay estimation module is calculated the time difference that sound-source signal arrives the different transaudient unit of microphone array;
The time difference that the orientation estimation module calculates according to described time delay estimation module and the geometric position of described microphone array estimate the position of sound source.
As a kind of improved plan, described method also comprises the steps:
When receiving the camera angle adjustment instruction that described manual adjusting device is carried, described microprocessor is resolved the instruction of described camera angle adjustment, controls described camera position adjustment unit camera is carried out to angle orientation control adjustment.
The electronic equipment camera regulator control system that the embodiment of the present invention provides passes through microphone array, decoder, microprocessor and camera position adjustment unit are realized the automatic adjusting to built-in camera, simultaneously, pass through manual adjusting device, microprocessor and camera position adjustment unit are realized the manual adjustments to built-in camera, thereby realize to camera automatically and the mode that combines of manual adjustments, when automatic adjusting has error not reach the effect needed, can carry out fine tuning by manual adjustments, make effect better, for providing the sense of hearing of better effects if, the user experiences.
The accompanying drawing explanation
Fig. 1 is the structural framing figure of the electronic equipment camera regulator control system that provides of the embodiment of the present invention;
Fig. 2 is microphone array and the sound source position relational model schematic diagram that the embodiment of the present invention provides;
Fig. 3 is the circuit diagram of the MSP430 single-chip microcomputer that provides of the embodiment of the present invention;
Fig. 4 is the circuit diagram of the DRV8834 chip that provides of the embodiment of the present invention;
Fig. 5 is the realization flow figure of the electronic equipment camera regulate and control method that provides of the embodiment of the present invention;
To be the decoder that provides of the embodiment of the present invention carry out respectively filtering, pattern conversion to the sound-source signal of described microphone array output to Fig. 6, obtains the specific implementation flow chart of the step of the signal of telecommunication;
Fig. 7 is that the signal of telecommunication that microprocessor that the embodiment of the present invention provides obtains described decoder carries out that time delay is estimated and the orientation estimation, obtains the specific implementation flow chart of the step of the angle parameter that camera need to adjust;
Wherein, 1-microphone array, 2-decoder, the 21-filtration module, 22-modular converter, 3-microprocessor, 31-time delay estimation module, 32-orientation estimation module, 4-camera position adjustment unit, 41-drives chip, 42-stepping motor, 5-camera, the 6-manual adjusting device, the 61-signal receives hair device, 62-remote controller, the 621-signal generator, the 63-control panel.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the structural framing figure that the embodiment of the present invention provides electronic equipment camera regulator control system, for convenience of explanation, has only provided the part relevant to the embodiment of the present invention in figure.
In embodiments of the present invention, electronic equipment camera regulator control system specifically comprises:
According to certain geometric position, arrange and be arranged on electronic equipment, for receiving the microphone array 1 of sound-source signal, described microphone array 1 comprises several transaudient unit, wherein, this microphone array 1 can arrange 2 transaudient unit, 4 transaudient unit or how transaudient unit, the number of its setting is more, the geometry of the microphone array 1 that these several transaudient unit forms requires higher, the sound source position that its estimation obtains is more accurate, only provided an illustration in figure, its concrete geometric figure is arranged according to actual conditions;
The decoder 2 be electrically connected to microphone array 1, decoder 2 carries out respectively filtering, pattern conversion for the sound-source signal that described microphone array 1 is received, and obtains the signal of telecommunication;
The microprocessor 3 be electrically connected to decoder 2, the signal of telecommunication that 3 pairs of described decoders 2 of described microprocessor obtain carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted;
The camera position adjustment unit 4 be connected with described microprocessor 3, the described camera 5(of described camera position adjustment unit 4 connection connected mode herein is mechanical connection and electrical connection), the angle parameter that the camera that camera position adjustment unit 4 calculates according to described microprocessor 3 need to be adjusted carries out the angle orientation adjustment to described camera 5;
Be connected with microprocessor 3, for receiving user's input message, generate the manual adjusting device 6 of camera manual adjustments control signal.
The automatic adjusting that the electronic equipment camera regulator control system that the embodiment of the present invention provides is realized built-in camera 5 by microphone array 1, decoder 2, microprocessor 3 and camera position adjustment unit 4, simultaneously, the manual adjustments realized built-in camera 5 by manual adjusting device 6 and microprocessor 3, thereby realize to camera automatically and the mode that combines of manual adjustments, when automatic adjusting has error not reach the effect needed, can carry out fine tuning by manual adjustments, make effect better.
Wherein, above-mentioned electronic equipment comprises television set, PC end and other consumer electronics products, do not repeat them here, but not in order to limit the present invention.
In embodiments of the present invention, decoder 2 specifically comprises:
The sound-source signal that described microphone array 1 is received carries out filtering, obtains the filtration module 21 of voice signal;
Be connected with described filtration module 21, for the voice signal that described filtration module 21 filtering are finished dealing with, carry out the pattern conversion, obtain the modular converter 22 of the signal of telecommunication.
Wherein, this decoder 2 can select conventional audio frequency CODEC to get final product, as long as can reach the effect of the embodiment of the present invention.
In embodiments of the present invention, microprocessor 3 specifically comprises:
Time delay estimation module 31, for calculating the time difference of the different transaudient unit of sound-source signal arrival microphone array;
Wherein, according to the number difference that is arranged on the transaudient unit in microphone array 1, in this microprocessor 3, operation has multiple algorithm for estimating, these algorithms can be realized the estimation to the adjustment angle of camera, its precision depends on the geometry of microphone array 1, and the algorithm that these algorithms can adopt prior art to provide gets final product, do not repeat them here.
In embodiments of the present invention, above-mentioned microprocessor 3 is also controlled and is carried out both-way communication with the electronic equipment mainboard, guarantees the normal operation of electronic equipment camera regulator control system, does not repeat them here.
To be provided with two transaudient unit in microphone array 1, these two transaudient unit move horizontally and describe for example in order to control camera:
As shown in Figure 2, the mid point of two transaudient unit M1 of omnidirectional and M2 line of take is initial point, their line is X-axis, sound source is T12 to the hypothesis of the time difference between these two transaudient unit, the position that means these two microphones with vector m1 and m2, the position that means sound source with vector Rs, sound source S should meet vector equation:
||Rs-m1||-||Rs-m2||=T12×C;
Wherein C is the velocity of sound;
From bi-curved definition, the solution that meets this equation must drop on hyperboloid, and sound source S (r, θ, φ) is polar form;
Further, suppose it is the far field model, now sound source is distant apart from microphone, thus when between the time delay between known microphone and microphone apart from the time, just can be similar to the θ angle of trying to achieve in Fig. 2:
θ=cos-1(C*T12/|m1-m2|);
Should steering angle thereby calculate camera.
Wherein an above-mentioned concrete implementation procedure and the computing formula of only having provided, can adopt other modes and formula to be calculated certainly, to realize the calculating of this angle, do not repeat them here, but not in order to limit the present invention.
Certainly, in embodiments of the present invention, also can adopt these two transaudient unit to be adjusted the angle longitudinally of camera, simultaneously, can adopt the mode that a plurality of transaudient unit are set, camera be carried out to three dimensions and adjusted, vertical and horizontal are adjusted simultaneously, its adjustment mode is similar, does not repeat them here.
In embodiments of the present invention, camera position adjustment unit 4 specifically comprises:
The driving chip 41 be electrically connected to described microprocessor 3;
With the stepping motor 42 that described driving chip 41 is connected, described stepping motor 42 connects described camera.
In embodiments of the present invention, stepping motor 42 is in order to realize the angle adjustment to camera, and the mode that its concrete structure can adopt screw rod and gear to match realizes adjusting, and does not repeat them here, the stepping motor of prior art can be realized this adjustment, but not in order to limit the present invention.
In embodiments of the present invention, manual adjusting device 6 specifically comprises:
Be arranged in electronic equipment, the signal be connected with described microprocessor 3 receives hair device 61, and described signal receives hair device 61 for receiving and forward the camera angle adjustment instruction that the far-end remote control device is output or control panel electronic equipment produces;
Receive with described signal the remote controller 62 that hair device 61 wireless telecommunications are connected, be provided with in described remote controller 62 with described signal and receive the corresponding signal generator 621 of hair device 61;
Receive hair device 61 with described signal and be electrically connected to, for receiving the key information of user's input, generate the control panel 63 of camera angle adjustment instruction.
Wherein, from the scheme of above-described embodiment, can draw, the camera angle adjustment instruction manually generated can have two kinds of implementations, can carry out organic adjustment by the key up and down of remote controller or the button of other settings, also can be adjusted by the button on control panel.
In embodiments of the present invention, this microprocessor 3 can adopt super low-power consumption, the mixed-signal processor of (RISC) gets final product to have reduced instruction set computer, MSP430 single-chip microcomputer for example, and its concrete circuit diagram is as shown in Figure 3.
In embodiments of the present invention, above-mentioned driving chip 41 can adopt common DRV8834 chip, certainly can adopt the chip of other types, do not repeat them here, as long as can realize driving the effect enabled, wherein, the circuit diagram of this 8834 chip as shown in Figure 4.
The MSP430 single-chip microcomputer enables the camera position adjustment unit by controlling the motor_ENABLE pin, control action and the direction of camera position adjustment unit by TILT_STEP and TILT_DIRECTION, wherein, the MOTOR_NSLEEP pin is that the chip resting state is controlled pin, and low level makes equipment enter resting state.In this state, H-Bridges does not enable, and all internal logics reset, internal clocking stops, all inputs all are left in the basket until MOTOR_NSLEEP becomes high level, and ADECAY and BDECAY pin are set to low level, generally in the micro-stepping pattern, use the slow-decay pattern.
In embodiments of the present invention, DRV8834 is not used to current limit, so AISEN and BISEN pin are by 1.1R1% precision grounding through resistance.The TILT_NFAULT pin is chip overcurrent, overvoltage, temperature protection signal output pin, is high level under normal circumstances, and when having abnormal conditions to occur as the overcurrent phenomenon, meeting output low level signal is to MSP430.
In embodiments of the present invention, Fig. 5 has provided the realization flow figure of the electronic equipment camera regulate and control method that the embodiment of the present invention provides, and its concrete step is as described below:
In step S101, microphone array receives and exports sound-source signal.
In step S102, decoder carries out respectively filtering, pattern conversion to the sound-source signal of described microphone array output, obtains the signal of telecommunication.
In step S103, the signal of telecommunication that microprocessor obtains described decoder carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted.
In step S104, the angle parameter that the camera that the camera position adjustment unit calculates according to described microprocessor need to be adjusted carries out the angle orientation adjustment to described camera.
The sound-source signal that the decoder that Fig. 6 shows the embodiment of the present invention to be provided is exported described microphone array carries out respectively filtering, pattern conversion, obtains the specific implementation flow process of the step of the signal of telecommunication, and its concrete step is as described below:
In step S201, the sound-source signal that filtration module receives described microphone array carries out filtering, obtains voice signal.
In step S202, the voice signal that modular converter is finished dealing with described filtration module filtering carries out the pattern conversion, obtains the signal of telecommunication.
The signal of telecommunication that the microprocessor that Fig. 7 shows the embodiment of the present invention to be provided obtains described decoder carries out that time delay is estimated and the orientation estimation, obtains the specific implementation flow process of the step of the angle parameter that camera need to adjust, and its concrete step is as described below:
In step S301, the time delay estimation module is calculated the time difference that sound-source signal arrives the different transaudient unit of microphone array.
In step S302, the time difference that the orientation estimation module calculates according to described time delay estimation module and the geometric position of described microphone array estimate the position of sound source.
Above are only the embodiment of the method that the embodiment of the present invention provides, the details that realizes that it is concrete is put down in writing as above-mentioned system embodiment, do not repeat them here, but not in order to limit the present invention.
The electronic equipment camera regulator control system microphone array that the embodiment of the present invention provides, decoder, microprocessor and camera position adjustment unit are realized the automatic adjusting to built-in camera, simultaneously, pass through manual adjusting device, microprocessor and camera position adjustment unit are realized the manual adjustments to built-in camera, thereby realize to camera automatically and the mode that combines of manual adjustments, when automatic adjusting has error not reach the effect needed, can carry out fine tuning by manual adjustments, make effect better, for providing the sense of hearing of better effects if, the user experiences.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. an electronic equipment camera regulator control system, is characterized in that, described system specifically comprises:
Arrange and be arranged on electronic equipment according to certain geometric position, for receiving the microphone array of sound-source signal, described microphone array comprises several transaudient unit;
The decoder be electrically connected to microphone array, decoder carries out respectively filtering, pattern conversion for the sound-source signal that described microphone array is received, and obtains the signal of telecommunication;
The microprocessor be electrically connected to decoder, the signal of telecommunication that described microprocessor obtains described decoder carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted;
The camera position adjustment unit be connected with described microprocessor, described camera position adjustment unit connects described camera, and the angle parameter that the camera that the camera position adjustment unit calculates according to described microprocessor need to be adjusted carries out the angle orientation adjustment to described camera;
Be connected with microprocessor, for receiving user's input message, generate the manual adjusting device of camera manual adjustments control signal.
2. electronic equipment camera regulator control system according to claim 1, is characterized in that, described decoder specifically comprises:
The sound-source signal that described microphone array is received carries out filtering, obtains the filtration module of voice signal;
Be connected with described filtration module, for the voice signal that described filtration module filtering is finished dealing with, carry out the pattern conversion, obtain the modular converter of the signal of telecommunication.
3. electronic equipment camera regulator control system according to claim 1, is characterized in that, described microprocessor specifically comprises:
The time delay estimation module, for calculating the time difference of the different transaudient unit of sound-source signal arrival microphone array;
The orientation estimation module is connected with described time delay estimation module, estimates the position of sound source for the geometric position of time difference of calculating according to described time delay estimation module and described microphone array.
4. electronic equipment camera regulator control system according to claim 1, is characterized in that, described camera position adjustment unit specifically comprises:
The driving chip be electrically connected to described microprocessor;
With the stepping motor that described driving chip is connected, described stepping motor connects described camera.
5. electronic equipment camera regulator control system according to claim 1, is characterized in that, described manual adjusting device specifically comprises:
Be arranged in electronic equipment, the signal be connected with described microprocessor receives hair device, and described signal receives hair device for receiving and forward the camera angle adjustment instruction that the far-end remote control device is output or control panel electronic equipment produces;
Receive with described signal the remote controller that the hair device wireless telecommunications are connected, be provided with in described remote controller with described signal and receive the corresponding signal generator of hair device;
Receive hair device with described signal and be electrically connected to, for receiving the key information of user's input, generate the control panel of camera angle adjustment instruction.
6. an electronic equipment camera regulate and control method, is characterized in that, described method comprises the steps:
Microphone array receives and exports sound-source signal;
Decoder carries out respectively filtering, pattern conversion to the sound-source signal of described microphone array output, obtains the signal of telecommunication;
The signal of telecommunication that microprocessor obtains described decoder carries out the time delay estimation and orientation is estimated, obtains the angle parameter that camera need to be adjusted;
The angle parameter that the camera that the camera position adjustment unit calculates according to described microprocessor need to be adjusted carries out the angle orientation adjustment to described camera.
7. electronic equipment camera regulate and control method according to claim 6, is characterized in that, described decoder carries out respectively filtering, pattern conversion to the sound-source signal of described microphone array output, and the step that obtains the signal of telecommunication specifically comprises:
The sound-source signal that filtration module receives described microphone array carries out filtering, obtains voice signal;
The voice signal that modular converter is finished dealing with described filtration module filtering carries out the pattern conversion, obtains the signal of telecommunication.
8. electronic equipment camera regulate and control method according to claim 6, it is characterized in that, the signal of telecommunication that described microprocessor obtains described decoder carries out that time delay is estimated and the orientation estimation, and the step that obtains the angle parameter that camera need to adjust specifically comprises the steps:
The time delay estimation module is calculated the time difference that sound-source signal arrives the different transaudient unit of microphone array;
The time difference that the orientation estimation module calculates according to described time delay estimation module and the geometric position of described microphone array estimate the position of sound source.
9. electronic equipment camera regulate and control method according to claim 6, is characterized in that, described method also comprises the steps:
When receiving the camera angle adjustment instruction that described manual adjusting device is carried, described microprocessor is resolved the instruction of described camera angle adjustment, controls described camera position adjustment unit camera is carried out to angle orientation control adjustment.
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| CN201310433257.1A CN103491301A (en) | 2013-09-18 | 2013-09-18 | System and method for regulating and controlling camera of electronic equipment |
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| CN201310433257.1A CN103491301A (en) | 2013-09-18 | 2013-09-18 | System and method for regulating and controlling camera of electronic equipment |
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| CN109886070A (en) * | 2018-12-24 | 2019-06-14 | 珠海格力电器股份有限公司 | A kind of apparatus control method, device, storage medium and equipment |
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Application publication date: 20140101 |