CN104378164B

CN104378164B - Visible light signal reception control method, control device and receiving device

Info

Publication number: CN104378164B
Application number: CN201410652742.2A
Authority: CN
Inventors: 徐然; 杜琳
Original assignee: Beijing Zhigu Ruituo Technology Services Co Ltd
Current assignee: Beijing Zhigu Ruituo Technology Services Co Ltd
Priority date: 2014-11-17
Filing date: 2014-11-17
Publication date: 2018-12-25
Anticipated expiration: 2034-11-17
Also published as: CN104378164A

Abstract

The embodiment of the present application provides a kind of visible light signal reception control method, control device and receiving device.The described method includes: determining the communication performance of visible light signal receiving device and at least visible light signal transmitting equipment；It improves, at least reduces and the pixel density that emits at least one relevant region in equipment on the imaging sensor of the visible light signal receiving device with an at least visible light signal in response to the communication performance of the visible light signal receiving device and at least visible light signal transmitting at least one of equipment.The method, device and equipment of the embodiment of the present application is able to respond the variation in communication performance, by the pixel density for changing the imaging sensor at least partly region of visible light signal receiving device, the power consumption for reducing visible light signal receiving device is more suitable for the visible light communication of complicated mobile context.

Description

Visible light signal reception control method, control device and receiving device

Technical field

Each embodiment of the application is related to technical field of visible light communication more particularly to a kind of visible light signal receives controlling party Method, control device and receiving device.

Background technique

Visible light communication (VLC) is the carrier propagated using the light of visible light wave range as information, issues meat using light source The imperceptible high speed light and shade blinking light of eye transmits the technology of the wireless light communication of information, has that transmission power is high, nothing Electromagnetic interference, without frequency spectrum certification, it is environmentally protective the advantages that, the problem that Radio Spectrum Resource tends to be exhausted can be effectively relieved, It is increasingly valued by people in recent years.

With the development of mobile communication technology, more and more visible light communication technologies are applied in mobile context, due to Visible light transceiver is likely to occur mobile and mobile communication complexity transmission environment, and the visible light in mobile context is received Communication performance between hair equipment is easier to be affected.

Summary of the invention

In view of this, a kind of one of the embodiment of the present application visible light communication side being designed to provide in mobile context Case.

To achieve the above object, according to a first aspect of the embodiments of the present invention, a kind of visible light signal reception control is provided Method, which comprises

Determine the communication performance of visible light signal receiving device and at least visible light signal transmitting equipment；

In response at least one in the visible light signal receiving device and at least visible light signal transmitting equipment A communication performance improves, and at least reducing can with described at least one on the imaging sensor with the visible light signal receiving device See the pixel density at least one relevant region in optical signal launch equipment.

According to a second aspect of the embodiments of the present invention, a kind of visible light signal receiving control device, described device packet are provided It includes:

One determining module, for determining the communication of visible light signal receiving device and at least visible light signal transmitting equipment Performance；

One control module, for emitting in response to the visible light signal receiving device and an at least visible light signal The communication performance of at least one of equipment improves, and at least reduces on the imaging sensor with the visible light signal receiving device The pixel density at least one relevant region described in emitting in equipment to an at least visible light signal.

According to a third aspect of the embodiments of the present invention, a kind of visible light signal receiving device is provided, the equipment includes this Visible light signal receiving control apparatus described in inventive embodiments second aspect.

The method, device and equipment of the embodiment of the present application is able to respond the variation in communication performance, by changing visible light The pixel density in the imaging sensor of signal receiver at least partly region reduces the power consumption of visible light signal receiving device, It is more suitable for the visible light communication of complicated mobile context.

Detailed description of the invention

Fig. 1 is the visible light signal reception control method flow chart of the embodiment of the present application；

Fig. 2 (a) to Fig. 2 (b) is that the image for changing visible light signal receiving device according to the method for the embodiment of the present application passes The schematic illustration of the pixel density of sensor；

Fig. 3 (a) to Fig. 3 (i) is the structural block diagram of the imaging sensor of the embodiment of the present application；

Fig. 4 (a) to Fig. 4 (i) is a variety of implementations of the visible light signal receiving control device of the embodiment of the present application Structural block diagram；

Fig. 5 is the block diagram of the visible light signal receiving device of the embodiment of the present application；

Fig. 6 is the structural block diagram of the visible light signal receiving control device of the application another kind embodiment.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below Example is not intended to limit the scope of the invention for illustrating the present invention.

It is set it will be understood by those skilled in the art that the terms such as " first ", " second " in the application are only used for difference difference Standby, module or parameter etc., neither represent any particular technology meaning, also do not indicate the inevitable logical order between them.

Visible light communication technology is divided into visible light signal in physics realization using the light of visible light wave range as information carrier Transmitting and visible light signal receive two parts.Visible light signal in visible light signal emitting portion namely each embodiment of the application Transmitting equipment includes: that signal to be sent is converted into convenient for the input of the electric signal of optical channel transmission and processing circuit, by telecommunications Number change modulates drive modulation circuit at the visible light source of light carrier Strength Changes.Visible light signal receiving portion namely this Shen Please the visible light signal receiving device in each embodiment include: the optical system that optimum reception can be realized to signal optical source, by light Signals revivification at electric signal photoelectric conversion section and pre-amplification circuit, convert the electrical signal to can be by the signal of terminal recognition Handle and export circuit.Wherein, in each embodiment of the application, it is seen that the photoelectric conversion part of optical signal receiving device is divided into image Sensor (Image Sensor, also referred to as photosensitive element, for example, charge-coupled device (Charge Coupled Device, CCD), complementary metal oxide conductor (Complementary Metal-Oxide Semiconductor, CMOS)), image passes Light is transformed into charge inducing when sensor receives light irradiation, can be realized to from multiple visible light signals transmitting equipment The light of light source receives simultaneously, and has stronger anti-interference ability.Imaging sensor is made of multiple pixels.

As shown in Figure 1, the visible light signal reception control method of the embodiment of the present application includes:

S120. the communication performance of visible light signal receiving device and at least visible light signal transmitting equipment is determined.

Visible light signal receiving device by imaging sensor realize to from multiple visible light signals emit equipment can It is received while light-exposed signal.In communication process, change due to communicating either one movement or transmission environment, communication performance It will receive influence, for example, the interference between the variation of the communication distance between transceiver, visible light signal transmitting equipment The communication performance that variation etc. makes it possible between transceiver changes, it is seen that optical signal receiving device may be in response to lead to The raising of letter performance makes corresponding adjustment to save equipment power dissipation etc..

S140. emit in equipment extremely in response to the visible light signal receiving device and an at least visible light signal Few one communication performance improves, at least reduce on the imaging sensor with the visible light signal receiving device with it is described at least One visible light signal emits the pixel density at least one relevant region in equipment.

In the method for the embodiment of the present application, improved in response to the communication performance between visible light transceiver, by changing Become the mode of the pixel density in the imaging sensor at least partly region of current visible light signal receiving device, i.e., at least reduces institute State on the imaging sensor of visible light signal receiving device with an at least visible light signal transmitting equipment in it is described at least (the relevant region includes receiving the corresponding visible light signal of communication performance improved to the pixel density in one relevant region Emit the region of all pixels unit of the optical signal of equipment, it may for example comprise receive the corresponding visible light of communication performance of raising Signal emits at least partly region of the described image sensor of all pixels unit of the optical signal of equipment), reduce signal Receiving channel, to reduce the power consumption of visible light signal receiving device.And in the method for the embodiment of the present application, after changing density Region in pixel can for it is equally distributed be also uneven distribution.In the method for the embodiment of the present application, the pixel Unit is minimum unit when reading the charge of imaging sensor, and each pixel unit may include at least one described picture Element.For shown in Fig. 2 (a) to Fig. 2 (b), current time respectively includes six and four pixel (box institutes of oblique line filling Show) the corresponding region 200,220 of pixel unit be to emit the relevant region of equipment difference to two visible light signals.According to this The method for applying for embodiment, may be in response to region 200, and the pixel of the raising of 220 corresponding communication performances, reduction region 200 is close Degree, is reduced to the pixel density including equally distributed four pixels, as shown in Fig. 2 (a)；Reduce the pixel density in region 220 Be include uneven distribution three pixels pixel density, as shown in Fig. 2 (b).

To sum up, the method for the embodiment of the present application is by changing the imaging sensor of visible light signal receiving device at least partly The pixel density in region reduces the power consumption of visible light signal receiving device, and the visible light for being more suitable for complicated mobile context is logical Letter.

In the method for the embodiment of the present application, visible light signal receiving device and institute can be determined by a variety of possible modes State the communication performance of at least visible light signal transmitting equipment.For example, in one possible implementation, it can be from known to other Or it can determine and obtain the communication performance at the equipment of communication performance between visible light transceiver.Correspondingly, step S120 can include:

S122. the communication performance of the visible light signal receiving device and at least visible light signal transmitting equipment is obtained.

In alternatively possible implementation, it can also be connect by the main body of method itself basis for executing the embodiment of the present application The visible light signal received determines the communication performance.Correspondingly, step S120 can include:

S124. the visible light signal received according at least to each pixel unit of described image sensor determines described visible The communication performance of optical signal receiving device and at least visible light signal transmitting equipment.

For example, whether being come from according to the optical signal that the whether identical determination of the intensity of the optical signal received receives same Visible light signal emits equipment.Or it is connect according to the whether identical determination of the modulated signal that can be demodulated in the optical signal received Whether the optical signal received comes from the same visible light signal transmitting equipment, and correspondingly, step S124 can further comprise:

S1242. the visible light signal that each pixel unit of described image sensor receives is demodulated.

S1244. it according at least to the modulated signal demodulated, determines from least visible light signal transmitting equipment Visible light signal, and according at least to the determining visible light signal determine the visible light signal receiving device and it is described at least The communication performance of one visible light signal transmitting equipment.

It reads the charge inducing of each pixel unit and analog-to-digital conversion is carried out to charge inducing, from wherein demodulation visible light letter The modulated signal of number transmitting equipment transmitting, modulated signal, that is, visible light signal transmitting equipment are carrier signal to visible using visible light The information that optical signal receiving device is sent, it is seen that the visible light signal that optical signal receiving device receives is with the modulated signal The modulated signal modulated.It should be noted that in the charge that imaging sensor is sensed may some be from ring Border light can first remove the influence of environment light to preferably demodulate modulated signal, for example, being arranged when reading charge appropriate Threshold value filters out the influence of environment light, emits equipment from visible light signal alternatively, distinguishing by the intensity for receiving optical signal Optical signal and ambient light signal region, ignore only receive ambient light signal relevant range do not deal with.

In general, demodulation each pixel unit relevant at least visible light signal transmitting equipment, according to what is demodulated Whether signal is identical, can find out and receive each pixel unit from same visible light signal transmitting equipment, so that it is determined that coming from The visible light signal of at least visible light signal transmitting equipment.According to identified each visible light signal transmitting equipment can Light-exposed signal can determine corresponding communication performance.It in one possible implementation, can be by determining described visible Optical signal determines and the relevant region of each visible light signal transmitting equipment.

It should be noted that whether the intensity except through the optical signal received is identical, or according to the signal demodulated Whether it is identical determine except the visible light signal from same visible light signal transmitting equipment, also to can be used any other suitable Mode.

It has been determined that visible light signal receiving device and an at least visible light signal emit equipment according to the optical signal received Communication performance after, in step S140, change pixel density region may include receive improve communication performance it is corresponding Visible light signal emits the region of all pixels unit of the optical signal of equipment, it may for example comprise receives the communication performance pair of raising At least partly region of the described image sensor of all pixels unit of the optical signal for the visible light signal transmitting equipment answered, and The region can also be determined according to the optical signal that each pixel unit receives, that is, step S140 can include:

S142. the visible light signal received according at least to each pixel unit of described image sensor it is determining with it is described extremely Two pixel units of at least one relevant described image sensor in few visible light signal transmitting equipment.

It is similar with being discussed in conjunction with step S124, it can be according at least to the intensity of the optical signal received or according to connecing Whether the modulated signal that can be demodulated in the optical signal received is identical, determining to emit equipment with an at least visible light signal In at least one described relevant region, but not limited to this.By taking the modulated signal demodulated as an example, step S142 can be further Include:

S1422. determining to emit equipment with an at least visible light signal according at least to the determining visible light signal In at least one relevant described image sensor region.

In addition, can determine communication performance by a variety of possible evaluation indexes, and walk in the method for the embodiment of the present application Rapid S1244 can also further comprise:

S101. according at least to the determining visible light signal, an at least evaluation index for the communication performance is determined.

S102. the visible light signal receiving device and an at least visible light are determined according at least to the evaluation index The communication performance of signal transmitting equipment.

In one possible implementation, the evaluation index includes: at least visible light signal transmitting equipment The hot spot projected in described image sensor.The size of hot spot emits equipment with visible light signal and visible light signal reception is set It is the distance between standby, angle is related, in turn, the height of communication performance can be reacted to a certain extent.In this implementation In, the visible light signal of equipment can be emitted according to identified visible light signal in step s101, determine corresponding hot spot Size.E.g., including all pixels unit relevant to the identified visible light signal transmitting visible light signal of equipment The size in region be the visible light signal transmitting equipment project in described image sensor be hot spot size.Step S102 In may be in response to that the hot spot becomes larger or the increment of the hot spot be more than first threshold or the hot spot is more than second threshold, really The fixed communication performance improves.Wherein, first threshold and second threshold can be true according to communication requirement and/or historical communication information It is fixed, for example, when setting spot size for first threshold and increasing more than the first threshold, it is seen that the function of optical signal receiving device Consume the value that will be significantly increased；When setting hot spot for second threshold and increasing above the second threshold size, it is seen that optical signal connects The power consumption of receiving unit will significantly increase.For example, as shown in Fig. 2 (a), the size corresponding region of last moment hot spot 200 includes Six pixel units, become larger in response to the size of current time hot spot 200 or the increment of hot spot 200 is more than first threshold or light Spot 200 determines that visible light signal receiving device visible light signal transmitting corresponding with hot spot 200 is set more than a second threshold Standby communication performance improves.In turn, the pixel density of 200 corresponding region of hot spot is reduced by step S140.

In alternatively possible implementation, the evaluation index can include: the visible light signal receiving device connects Receive the signal-to-noise ratio of the visible light signal from least visible light signal transmitting equipment transmitting.The size of signal-to-noise ratio can be one Determine the height for reacting communication performance in degree, and determines that signal-to-noise ratio is the mature prior art in this field according to signal is received. In this implementation, may be in response in step S102 the signal-to-noise ratio become larger or the increment of the signal-to-noise ratio be more than third Threshold value or the signal-to-noise ratio are more than the 4th threshold value, determine that the communication performance improves.Wherein, third threshold value and the 4th threshold value are equal Can be determined according to communication requirement and/or historical communication information, for example, by third threshold value be set as signal-to-noise ratio increase more than this When three threshold values, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；By second threshold When being set as signal-to-noise ratio and increasing above four threshold values, indicate that the power consumption of visible light signal receiving device will significantly increase.It is logical Crossing step S140 reduces the pixel density of relevant range.

In another possible implementation, the evaluation index can include: the visible light signal receiving device connects Receive the bit error rate of the visible light signal from least visible light signal transmitting equipment transmitting.The size of the bit error rate can be one Determine the height for reacting communication performance in degree, and determines that the bit error rate is the mature prior art in this field according to signal is received. In this implementation, it may be in response to that the bit error rate reduces or the reduction amount of the bit error rate is more than the in step S102 Five threshold values or the bit error rate are lower than the 6th threshold value, determine that the communication performance improves.Wherein, the 5th threshold value and the 6th threshold value It can be determined according to communication requirement and/or historical communication information, for example, the 5th threshold value is set as the bit error rate to reduce being more than to be somebody's turn to do When five threshold values, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；By the 6th threshold When value is set as the bit error rate and is decreased below six threshold values, indicate that the power consumption of visible light signal receiving device can significantly be dropped It is low, without will affect communication.The pixel density of relevant range is reduced by step S140.

In another possible implementation, communication performance can not be directly determined by receiving signal, but pass through receipts The variation of the distance between hair equipment directly determines the communication performance between transceiver.The size of the distance between transceiver The height of communication performance can be reacted to a certain extent.For example, communication performance etc. may be improved apart from reducing.In this realization In mode, step S120 can further comprise:

S124. the distance between the visible optical receiving device and at least visible light signal transmitting equipment are determined, For example, the position of visible light signal transmitting equipment can be determined by modes such as GPS positionings, and then determine that visible light signal transmitting is set It is standby the distance between with visible light signal receiving device, or can be communicated by directly emitting equipment with visible light signal to obtain State distance.

S126. reduce in response to the distance or the reduction amount of the distance is more than that the 7th threshold value or the distance are lower than 8th threshold value determines that the communication performance improves.Wherein, the 7th threshold value and the 8th threshold value according to communication requirement and/or can be gone through The history communication information determines, for example, setting when reducing the size of more than seven threshold values of the distance for the 7th threshold value, indicates The power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；By the 8th threshold value be set as it is described away from When from being decreased below eight threshold values, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without shadow Ring communication.

In such implementation, it can still be determined as the description of step S142 and an at least visible light signal Emit at least one described relevant region in equipment, or directly reduces the pixel density of whole image sensor.

It should be noted that the method for the embodiment of the present application can comprehensively consider above-mentioned each evaluation index to determine communicativeness Can, for example, can not necessarily make the raising of communication performance when communication distance reduces, the signal-to-noise ratio for receiving signal can be comprehensively considered Deng.In addition, other than above-mentioned evaluation index, the method for the embodiment of the present application it is also possible to consider the index of other evaluation communication qualities, For example, channel estimation value, throughput of system and those skilled in the art it is conceivable that any index.

In conclusion the method for the embodiment of the present application be able to respond in communication quality variation adjustment imaging sensor at least The pixel density of partial region, and then the energy consumption of receiving device is saved, and control simple.

In addition, reducing the mode of the pixel density in the region can select according to actual needs, the embodiment of the present application is to this It is not intended to limit.In one possible implementation, can by control, deformation occurs in controllable deforming material portion, with by it is described can The deformation in control deformable material portion accordingly reduces the pixel density in the region.It is adjusted by controlling the deformation in controllable deforming material portion The pixel distribution of whole described image sensor, scheme are simply easily realized.Have speech, step S140 can include:

S144. deformation occurs in the controllable deforming material portion of control described image sensor, to pass through the controllable deforming material The deformation in material portion reduces the pixel density in the region.

Controllable deforming material portion is that can make it by certain the external action factor (such as outfield) of change effect thereon Deformation occurs, and when the outfield of effect thereon cancels or changes, the deformation in the controllable deforming material portion can restore.

Fig. 3 (a) is the structural schematic diagram of the adjustable imaging sensor of pixel density applied by each embodiment of the application.Such as Shown in Fig. 3 (a), the adjustable imaging sensor of the pixel density includes: multiple pixels 11 and a controllable deforming material portion 12, In, multiple pixels 11 are in array distribution, and controllable deforming material portion 12 is connect with multiple pixels 11 respectively；Controllable deforming material portion 12 Under outer field action can deformation occurs and the distribution of multiple pixels 11 is accordingly adjusted by the deformation in controllable deforming material portion 12, And then realize the adjustment of pixel density.

In technical solution provided by the embodiments of the present application, controllable deforming material portion is by changing the controllable deforming material Certain outer field action factor in material portion can bring it about deformation, when certain outer field action factor cancels or changes, the controllable deforming The deformation in material portion can restore, and the outfield can be directed to the deformation behavior selection index system in controllable deforming material portion thereon Corresponding control outfield, such as the outfield includes but is not limited to external electrical field, magnetic field, light field etc..Pixel may include but not It is limited to an at least photoelectric conversion unit.It can be used between each pixel and controllable deforming material portion but be not limited to the modes such as Nian Jie and carry out Close connection, in this way, will accordingly adjust the spacing between each pixel, thus when deformation occurs in controllable deforming material portion Change pixel density, the effect that imaging sensor different zones are distributed with differentiation pixel density can be assigned according to actual needs by reaching Fruit.

In practical application, can different zones by the outer field action of uneven distribution in controllable deforming material portion, make It obtains controllable deforming material portion different piece region and different degrees of deformation occurs, thus adjust the global density point of pixel Cloth.Optionally, can make in this way by the outer field action in controllable deforming material portion and the nonoverlapping region of multiple pixels Obtaining the controllable deforming material portion region Chong Die with the pixel, deformation occurs, but passes through controllable deforming material portion The deformation of other parts change pixel density, the program is conducive to that the deformation because of controllable deforming material portion is avoided to make pixel At damage.

In practical application, suitable at least one controllable deforming material can be selected to prepare the controllable deforming as needed Material portion, so that controllable deforming material portion has the deformable and recoverable characteristic of deformation.Optionally, the controllable deforming Material portion is at least prepared by one or more of controllable deforming material: piezoelectric material, electroactive polymer, photo-deformable Material, magnetostriction materials.

The piezoelectric material can generate mechanically deform because of electric field action.The controllable deforming prepared using the piezoelectric material Material portion hereinafter referred to as piezoelectric material.Using this physical characteristic of the piezoelectric material, the embodiment of the present application can be according to need It determines for electric field controls information needed for making piezoelectric material that corresponding mechanical deformation occur, according to the electric field controls information Control action passes through the piezoelectricity so that corresponding mechanical deformation occurs for the piezoelectric material in the electric field of piezoelectric material The mechanical deformation in material portion accordingly adjusts the pixel density of imaging sensor.The piezoelectric material may include but be not limited to down toward It is one of few: piezoelectric ceramics, piezo-electric crystal.The program can make full use of the physical characteristic of piezoelectric material to adjust imaging sensor Pixel density distribution.

The electroactive polymer (Electroactive Polymers, abbreviation EAP) is that one kind can be in electric field action The lower polymer material for changing its shape or size.Using the electroactive polymer preparation controllable deforming material portion hereinafter referred to as For electroactive polymer portion.Using this physical characteristic of the electroactive polymer, the embodiment of the present application can as needed really Determine to be controlled for electric field controls information needed for making electroactive polymer portion that corresponding deformation occur according to the electric field controls information The electric field of layer of electroactive polymer is acted on, so that corresponding deformation occurs for the layer of electroactive polymer, it is living by the electricity The deformation of property polymeric layer accordingly adjusts the pixel density of imaging sensor.The electroactive polymer may include but be not limited to It is at least one lower: electron type electroactive polymer, ionic electroactive polymer；The electron type electroactive polymer include with It is at least one lower: ferroelectric polymer (such as Kynoar), electrostriction grafted elastomeric, liquid crystal elastic body；It is described from Subtype electroactive polymer includes at least one of: ER fluid, ion polymer-metal composite material etc..The program can The physical characteristic of electroactive polymer is made full use of to adjust the distribution of the pixel density of imaging sensor.

The photo-deformable material is a kind of high molecular material that can change its shape or size under light field effect.It adopts The hereinafter referred to as photo-deformable material portion of controllable deforming material portion prepared with the photo-deformable material.Utilize the photo-deformable This physical characteristic of material, the embodiment of the present application can determine that photo-deformable material portion occurs needed for corresponding deformation as needed Light field controls information, controls information control action in the light field in photo-deformable material portion, so that described according to the light field Corresponding deformation occurs for photo-deformable material portion.Imaging sensor is accordingly adjusted by the deformation in photo-deformable material portion Pixel density.The photo-deformable material may include but be not limited at least one of: photo-induced telescopic ferroelectric ceramics, photo-deformable Polymer；The photo-induced telescopic ferroelectric ceramics includes but is not limited to lead lanthanum zirconate titanate (PLZT) ceramics, photo-deformable polymer packet It includes but is not limited to photo-deformable liquid crystal elastomer.The program can make full use of the physical characteristic of photo-deformable material to adjust image The pixel density of sensor is distributed.

The magnetostriction materials are that one kind can change its magnetized state under magnetic fields, and then its size occurs The magnetic material of variation.The controllable deforming material portion hereinafter referred to as magnetostriction material prepared using the magnetostriction material Portion.Using this physical characteristic of the magnetostriction materials, the embodiment of the present application can determine magnetostriction materials as needed Magnetic field needed for corresponding deformation occurs controls information, controls information control action in the magnetostriction material according to the magnetic field The magnetic field in portion, so that corresponding deformation occurs for magnetostriction material portion.Pass through the deformation phase in magnetostriction material portion The pixel density of imaging sensor should be adjusted.The magnetostriction material may include but be not limited to rare earth ultra-magnetostriction material, Such as with (Tb, Dy) Fe₂Compound is the alloy Tbo of matrix_0.3Dy_0.7Fe_1.95Material etc..The program can make full use of magnetostriction The physical characteristic of material is distributed to adjust the pixel density of imaging sensor.

In technical solution provided by the embodiments of the present application, the specific structure and connection side in each pixel and controllable deforming material portion Formula can determine according to actual needs, and practical ways are very flexible.

A kind of optional implementation, as shown in Fig. 3 (a), controllable deforming material portion 12 includes: a controllable deforming material The bed of material 121, multiple 11 array distributions of pixel and the one side for being connected to the controllable deforming material layer 121.It optionally, can root Multiple pixels are formed directly into the controllable deforming material layer 12 by factually border process conditions selection, alternatively, multiple pictures It is plain to be prepared respectively with the controllable deforming material layer 12 and the two can be used but be not limited to Nian Jie mode and closely connects.The party Case structure is simple, easily realizes.

Another optional implementation, as shown in Fig. 3 (b), controllable deforming material portion 12 includes multiple controllable changes Shape material connects sub-portion 122, and multiple controllable deforming materials connect 122 array distribution of sub-portion, to be correspondingly connected with array distribution Multiple pixels 11, i.e. multiple pixels of array distribution are connected by multiple controllable deforming materials of array distribution Sub-portion is connect to be connected as one.Optionally, it can be formed according to actual process in the interval region of the pixel of pixel array multiple described Controllable deforming material connects sub-portion, multiple controllable deforming materials connection sub-portions can be used with respective pixel but be not limited to It the modes such as connects, be bonded to connect.Image sensing can be adjusted by controlling the deformation that multiple controllable deforming materials connect sub-portion The density of device pixel, structure is simple, easily realizes.

Further, as shown in Fig. 3 (c) and Fig. 3 (d), described image sensor may also include that shape control portion 13, deformation Distribution of the control unit 13 for the outfield of adjustment effect to controllable deforming material portion 12, to control the controllable deforming Corresponding deformation occurs for material portion 12, in this way, will accordingly adjust each pixel when deformation occurs in controllable deforming material portion 12 Thus spacing between 11 changes the Density Distribution of pixel 11, imaging sensor not same district can be assigned according to actual needs by reaching The effect that domain is distributed with differentiation pixel density.

Optionally, as shown in Fig. 3 (c), the shape control portion may include light field control unit 131, and light field control unit 131 is used In adjustment effect to the external optical field distribution in controllable deforming material portion 12, to control the generation of controllable deforming material portion 12 Corresponding deformation.Under the situation, controllable deforming material portion 12 may include the light being at least prepared by photo-deformable material Shape-changing material portion is caused, such as photo-deformable material portion may include the photic shape being at least prepared by the photo-deformable material Change material layer, alternatively, controllable deforming material portion may include the multiple light being at least prepared by the photo-deformable material Shape-changing material is caused to connect sub-portion.Light field control unit 131 acts on the optical field distribution (figure in photo-deformable material portion by changing The light field of 12 varying strength of controllable deforming material portion distribution is acted in 3 (c) by the expression of arrow density), to motivate Different degrees of deformation occurs for the different zones for stating controllable deforming material portion 12, and passes through the shape in controllable deforming material portion 12 The spacing between each pixel 11 is in a disguised form answered, thus changes the Density Distribution of pixel 11, image can be assigned according to actual needs by reaching The effect that sensor different zones are distributed with differentiation pixel density.

Optionally, as shown in Fig. 3 (d), the shape control portion may include electric field controls portion 132, and electric field controls portion 132 uses It is distributed in the external electrical field of adjustment effect to controllable deforming material portion, is occurred accordingly with controlling controllable deforming material portion Deformation.Under the situation, controllable deforming material portion 12 may include the piezoelectric material being at least prepared by piezoelectric material (such as piezoelectric material layer or piezoelectric material connection sub-portion, etc.), alternatively, controllable deforming material portion 12 may include at least by Electroactive polymer portion (such as layer of electroactive polymer or electroactive polymer connexon that electroactive polymer is prepared Portion, etc.).As shown in Fig. 3 (d), electric field controls portion and controllable deforming material, electric field controls portion 132 can be connected by control line The field distribution in controllable deforming material portion is acted on, by changing to motivate the not same district in controllable deforming material portion 12 Different degrees of deformation occurs for domain.If acting on 12 electric field of controllable deforming material portion is zero electric field, the controllable change Deformation occurs in shape material portion (might as well be known as zero electric field excitation)；If changing the electricity for acting on controllable deforming material portion 12 Field strength distribution (field excitation of "+" positive electricity and the field excitation of "-" negative electricity as illustrated in the drawing), so that acting on the controllable deforming material The electric field strength of 12 different zones of material portion difference, as shown in Fig. 3 (e), in this way, the not same district in controllable deforming material portion Different degrees of deformation can occur for domain, and accordingly be adjusted between each pixel 11 by the deformation in controllable deforming material portion 12 Thus spacing changes the whole pixel Density Distribution of imaging sensor, imaging sensor can be assigned according to actual needs not by reaching The effect being distributed with region with differentiation pixel density.

Controllable deforming portion described in the embodiment of the present application can be directly connected to shape control portion, can also be indirectly connected with.It is described Shape control portion can be used as a part of described image sensor, alternatively, the shape control portion can also be not as described image A part of sensor, described image sensor can also the modes such as reserved pin, interface connect with the shape control portion.Effect Outfield in controllable deforming material portion may include but be not limited to electric field, magnetic field, light field etc..For generating the hard of electric field Part, software configuration, hardware, software configuration and hardware, software configuration for generating light field etc. for generating magnetic field, can Realize that details are not described herein for the embodiment of the present application using the corresponding prior art according to actual needs.

Optionally, described image sensor may also include flexible substrate, and the flexible substrate may include but be not limited to flexibility Plastic supporting base can change the shape of flexible substrate with certain flexibility as needed.Pixel, controllable deforming material portion can If flexible substrate is ipsilateral or not ipsilateral.Such as: as shown in Fig. 3 (f), multiple pixels 11 are connected to the one side of flexible substrate 14, Controllable deforming material portion (such as controllable deforming material layer 121) is connected to the another side of flexible substrate 14.Another example is: such as Fig. 3 (g) institute Show, multiple pixels 11 are connected to the one side of flexible substrate 14, controllable deforming material portion (such as controllable deforming material connects sub-portion 122) It connects corresponding pixel and is located at the same face of the flexible substrate 14 with pixel 11.The program not only can be by the way that act on can The outfield in control deformable material portion controls it deformation occurs the whole pixel Density Distribution for carrying out Indirect method imaging sensor, realizes figure As the picture degree density of sensor is adjustable, can also will such as be put down because which employs the shape that flexible substrate flexibly changes imaging sensor Thus the imaging sensor bending certain angle in face meets variety of images acquisition, decoration to obtain the imaging sensor of curved surface Etc. application demands.

Fig. 3 (h) is the structural schematic diagram of the adjustable imaging sensor of another pixel density.The image as shown in Fig. 3 (h) In sensor, controllable deforming material portion 12 includes: flexible substrate 123 and multiple permeability magnetic material portions 124；Multiple pixels 11 are divided It is not connect with flexible substrate 123, multiple permeability magnetic material portions 124 is at least partly connected in pixel 11, led by changing to act on The magnetic field in magnetic material portion 124 makes flexible substrate 123 that corresponding deformation occur and accordingly adjusts multiple pixels by the deformation 11 Density Distribution.Such as: can the side of each pixel 11 be arranged a permeability magnetic material portion 124, optionally, pixel 11 respectively with Flexible substrate 123 and permeability magnetic material portion 124 are bonded.The permeability magnetic material portion may include the magnetic pole of permeability magnetic material preparation, described to lead Magnetic material can be, but not limited to using soft magnetic material, silicon steel sheet, permalloy, ferrite, amorphous soft magnetic alloy, ultracrystallite One of magnetically soft alloy etc. is a variety of.The permeability magnetic material portion magnetic property prepared using soft magnetic material work is preferable, magnetic Remanent magnetism very little is convenient for adjusting next time after the revocation of field.

Further, optionally, shape control portion 13 described in the embodiment of the present application may also include that magnetic field control unit 133, magnetic External magnetic field of the field control unit 133 for adjustment effect to controllable deforming material portion is distributed, to control the controllable deforming Corresponding deformation occurs for material portion.For example, when magnetic field of 133 control action of magnetic field control unit in permeability magnetic material portion 124 (is swashed Exciting field) when changing, apply between the adjacent pixel as shown in Fig. 3 (h) certain magnetic field strength distribution same magnetic pole (NN or SS) repel magnetic field or different pole (NS or SN) attracts magnetic field, repulsive force or attraction can be accordingly generated between magnetic pole, which makees Make flexible substrate 123 that flexible equal deformation occur with flexible substrate 123 is transmitted to, and then causes between respective image sensor pixel Spacing change, realize adjustment pixel density purpose.The deformation behaviors such as scalable of program combination flexible substrate with And magnetic field control principle, realize that the pixel density on imaging sensor is adjustable.

Fig. 3 (i) is the structural schematic diagram of the adjustable imaging sensor of another pixel density.The image as shown in Fig. 3 (i) In sensor, controllable deforming material portion 12 includes: flexible substrate 123 and multiple permeability magnetic material portions 124；Multiple permeability magnetic materials The one side in portion 124 is connect with the flexible substrate 123 respectively, and the opposite face in multiple permeability magnetic material portions 124 respectively corresponds company Multiple pixels 11 are connect, make the flexible substrate 123 that corresponding shape occur by the magnetic field that change acts on the permeability magnetic material portion 124 Become and accordingly adjust by the deformation Density Distribution of multiple pixels 11.Optionally, permeability magnetic material portion 124 and flexible substrate 123 bondings, pixel 11 are Nian Jie with permeability magnetic material portion 124, act in permeability magnetic material portion 124 when flexible substrate 123 occurs to work as When magnetic field changes, magneticaction, which is transmitted to flexible substrate 123, makes flexible substrate 123 that flexible equal deformation occur, and then realizes Adjust the purpose of image sensor pixel density.The deformation behaviors such as scalable of program combination flexible substrate and magnetic field control Principle realizes that the pixel density on imaging sensor is adjustable.

It will be understood by those skilled in the art that in the above method of the application specific embodiment, the serial number of each step Size is not meant that the order of the execution order, and the execution sequence of each step should be determined by its function and internal logic, without answering Any restriction is constituted to the implementation process of the application specific embodiment.

In addition, the embodiment of the present application also provides a kind of computer-readable mediums, including following grasp is carried out when executed The computer-readable instruction of work: the operation of each step of the method in above-mentioned Fig. 1 illustrated embodiment is executed.

The embodiment of the present application also provides a kind of visible light signals for executing above-mentioned visible light signal reception control method to connect Control device is received, which can be the device independently of visible light signal receiving device, may belong to visible light signal reception and set Standby or device itself is the visible light signal receiving device.When the device itself is visible light signal receiving device When, other than the following each component part that will be described, which further includes other necessary groups for carrying out visible light communication At part.In addition, according to the needs of the above-mentioned different executive roles of the device, it is described in addition to each component part described below Device further includes that can realize the communication module communicated with arbitrary equipment outside device as needed.In addition to it is following will describe it is each Outside component part, which further includes other necessary components of visible light signal transmitting equipment.In addition, except described below Outside each component part, the equipment further includes that can realize as needed with external (in addition to visible light signal emits equipment) arbitrarily The communication module of equipment communication.As shown in Fig. 4 (a), the visible light signal receiving control device 400 of the embodiment of the present application includes:

Determining module 420, for determining that visible light signal receiving device and an at least visible light signal emit the logical of equipment Believe performance.

Control module 440, for being sent out in response to the visible light signal receiving device and an at least visible light signal The communication performance of at least one of jet device improves, and at least reduces the imaging sensor with the visible light signal receiving device The upper pixel density for emitting at least one relevant region in equipment to an at least visible light signal.

In the device of the embodiment of the present application, control module 440 is in response to the communication performance between visible light transceiver It improves, by way of changing the pixel density in imaging sensor at least partly region of current visible light signal receiving device, It at least reduces and emits equipment with an at least visible light signal on the imaging sensor of the visible light signal receiving device In the pixel density at least one relevant region (the relevant region includes that receive the communication performance improved corresponding Visible light signal transmitting equipment optical signal all pixels unit region, it may for example comprise receive the communication performance of raising At least partly area of the described image sensor of all pixels unit of the optical signal of corresponding visible light signal transmitting equipment Domain), the receiving channel of signal is reduced, to reduce the power consumption of visible light signal receiving device.And in the dress of the embodiment of the present application In setting, it is also uneven distribution that the pixel in region after changing density, which can be equally distributed,.In the embodiment of the present application In device, the pixel unit is minimum unit when reading the charge of imaging sensor, and each pixel unit may include At least one described pixel.For shown in Fig. 2 (a) to Fig. 2 (b), current time respectively includes six and four pixels is (oblique Shown in the box of line filling) the corresponding region 200,220 of pixel unit be and two visible light signals emit equipment and distinguish phases The region of pass.According to the device of the embodiment of the present application, control module 440 may be in response to region 200,220 corresponding communication performances Raising, reduce region 200 pixel density, the pixel density including equally distributed four pixels is reduced to, such as Fig. 2 (a) It is shown；Reduce region 220 pixel density be include uneven distribution three pixels pixel density, as shown in Fig. 2 (b).

To sum up, the device of the embodiment of the present application is by changing the imaging sensor of visible light signal receiving device at least partly The pixel density in region reduces the power consumption of visible light signal receiving device, and the visible light for being more suitable for complicated mobile context is logical Letter.

In the device of the embodiment of the present application, determining module 420 can determine visible light signal by a variety of possible modes The communication performance of receiving device and at least visible light signal transmitting equipment.For example, in one possible implementation, Can from known to other or can determine communication performance between visible light transceiver equipment from obtain the communication performance.Such as Shown in Fig. 4 (b), determining module 420 can include:

Acquisition submodule 422 is set for obtaining the visible light signal receiving device with the transmitting of an at least visible light signal Standby communication performance.

In alternatively possible implementation, it can also be received from device of the embodiment of the present application basis itself Optical signal determines the communication performance.Correspondingly, as shown in Fig. 4 (c), determining module 420 can include:

First determines submodule 424, receives for each pixel unit according at least to described image sensor visible Optical signal determines the communication performance of the visible light signal receiving device and at least visible light signal transmitting equipment.

For example, whether being come from according to the optical signal that the whether identical determination of the intensity of the optical signal received receives same Visible light signal emits equipment.Or it is connect according to the whether identical determination of the modulated signal that can be demodulated in the optical signal received Whether the optical signal received comes from the same visible light signal transmitting equipment, and correspondingly, as shown in Fig. 4 (d), first determines submodule Block 424 can further comprise:

Demodulating unit 4242, the visible light signal that each pixel unit for demodulating described image sensor receives.

First determination unit 4244, it is visible from described at least one for determining according at least to the modulated signal demodulated The visible light signal of optical signal launch equipment, and determine that the visible light signal connects according at least to the determining visible light signal The communication performance of receiving unit and at least visible light signal transmitting equipment.

It has been determined that visible light signal receiving device and an at least visible light signal emit equipment according to the optical signal received Communication performance after, control module 440 change pixel density region may include receive improve communication performance it is corresponding can See the region of all pixels unit of the optical signal of optical signal launch equipment, it may for example comprise the communication performance for receiving raising is corresponding Visible light signal transmitting equipment optical signal all pixels unit described image sensor at least partly region, and The region can be determined according to the optical signal that each pixel unit receives, that is, control module 440 can as shown in Fig. 4 (e) Include:

Second determines submodule 442, receives for each pixel unit according at least to described image sensor visible Determining at least one the described relevant described image sensor at least visible light signal transmitting equipment of optical signal Two pixel units.

It is similar with combining the first determining submodule 424 to be discussed, it can be according at least to the intensity of the optical signal received Or it is whether identical according to the modulated signal that can be demodulated in the optical signal received, it is determining to believe with an at least visible light Number transmitting equipment at least one described relevant region, but not limited to this.By taking the modulated signal demodulated as an example, such as Fig. 4 (f) shown in, second determines that submodule 442 can further comprise:

Second determination unit 4422, for according at least to the determining visible light signal, determining can with described at least one See the region of at least one relevant described image sensor in optical signal launch equipment.

In addition, can determine communication performance by a variety of possible evaluation indexes in the device of the embodiment of the present application, such as scheme Shown in 4 (g), the first determination unit 4244 may also include that

First determines subelement 401, for determining the communication performance according at least to the determining visible light signal An at least evaluation index.

Second determines subelement 402, for determining the visible light signal receiving device according at least to the evaluation index With the communication performance of at least visible light signal transmitting equipment.

In one possible implementation, the evaluation index includes: at least visible light signal transmitting equipment The hot spot projected in described image sensor.The size of hot spot emits equipment with visible light signal and visible light signal reception is set It is the distance between standby, angle is related, in turn, the height of communication performance can be reacted to a certain extent.In this implementation In, first determines that subelement 401 can emit the visible light signal of equipment according to identified visible light signal, determines corresponding light The size of spot.E.g., including all pixels list relevant to the identified visible light signal transmitting visible light signal of equipment Member region size be the visible light signal transmitting equipment project in described image sensor be hot spot size.Second Determine that subelement 402 may be in response to that the hot spot becomes larger or the increment of the hot spot is more than that first threshold or the hot spot are more than Second threshold determines that the communication performance improves.Wherein, first threshold and second threshold according to communication requirement and/or can be gone through The history communication information determines, for example, when setting spot size for first threshold and increasing more than the first threshold, it is seen that optical signal The value that the power consumption of receiving device will significantly increase；When setting hot spot for second threshold and increasing above the second threshold size, The power consumption of visible light signal receiving device will significantly increase.For example, as shown in Fig. 2 (a), the size of last moment hot spot 200 Corresponding region includes six pixel units, becomes larger in response to the size of current time hot spot 200 or the increment of hot spot 200 is more than More than a second threshold, determining that the visible light signal receiving device is corresponding with hot spot 200 can for first threshold or hot spot 200 See that the communication performance of optical signal launch equipment improves.In turn, the pixel of 200 corresponding region of hot spot is reduced by control module 440 Density.

In alternatively possible implementation, the evaluation index can include: the visible light signal receiving device connects Receive the signal-to-noise ratio of the visible light signal from least visible light signal transmitting equipment transmitting.The size of signal-to-noise ratio can be one Determine the height for reacting communication performance in degree, and determines that signal-to-noise ratio is the mature prior art in this field according to signal is received. In this implementation, second determine that subelement 402 may be in response to that the signal-to-noise ratio becomes larger or the increment of the signal-to-noise ratio is super It crosses third threshold value or the signal-to-noise ratio is more than the 4th threshold value, determine that the communication performance improves.Wherein, third threshold value and the 4th Threshold value can determine according to communication requirement and/or historical communication information, for example, by third threshold value be set as signal-to-noise ratio increase it is super When crossing the third threshold value, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；By When two threshold values are set as signal-to-noise ratio and increase above four threshold values, indicate that the power consumption of visible light signal receiving device can be shown Writing reduces, without will affect communication.The pixel density of relevant range is reduced by control module 440.

In another possible implementation, the evaluation index can include: the visible light signal receiving device connects Receive the bit error rate of the visible light signal from least visible light signal transmitting equipment transmitting.The size of the bit error rate can be one Determine the height for reacting communication performance in degree, and determines that the bit error rate is the mature prior art in this field according to signal is received. In this implementation, second determine that subelement 402 may be in response to the reduction amount of the bit error rate reduction or the bit error rate It is lower than the 6th threshold value more than the 5th threshold value or the bit error rate, determines that the communication performance improves.Wherein, the 5th threshold value and Six threshold values can be determined according to communication requirement and/or historical communication information, be reduced for example, setting the bit error rate for the 5th threshold value When more than five threshold values, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；It will When 6th threshold value is set as the bit error rate and is decreased below six threshold values, indicate that the power consumption of visible light signal receiving device can be by It significantly reduces, without will affect communication.The pixel density of relevant range is reduced by control module 440.

In another possible implementation, communication performance can not be directly determined by receiving signal, but pass through receipts The variation of the distance between hair equipment directly determines the communication performance between transceiver.The size of the distance between transceiver The height of communication performance can be reacted to a certain extent.For example, communication performance etc. may be improved apart from reducing.In this realization In mode, as shown in Fig. 4 (h), determining module 420 can further comprise:

Third determines submodule 426, for determining that the visible optical receiving device and an at least visible light signal are sent out The distance between jet device, for example, the position of visible light signal transmitting equipment can be determined by modes such as GPS positionings, and then really Determine visible light signal transmitting the distance between equipment and visible light signal receiving device, or can be by directly sending out with visible light signal Jet device communicates to obtain the distance.

4th determines submodule 428, is more than the 7th threshold for the reduction amount in response to the distance reduction or the distance Value or the distance are lower than the 8th threshold value, determine that the communication performance improves.Wherein, the 7th threshold value and the 8th threshold value can roots It is determined according to communication requirement and/or historical communication information, for example, setting reducing the size of for the distance for the 7th threshold value and being more than When seven threshold values, indicate that the power consumption of visible light signal receiving device can be significantly reduced, without will affect communication；By the 8th When threshold value is set as the distance and is decreased below eight threshold values, indicate that the power consumption of visible light signal receiving device can be shown Writing reduces, without will affect communication.

In such implementation, control module 440 still can as second determine submodule 442 description determine with At least one described relevant region in at least visible light signal transmitting equipment, or directly reduce whole image sensing The pixel density of device.

It should be noted that the device of the embodiment of the present application can comprehensively consider above-mentioned each evaluation index to determine communicativeness Can, for example, can not necessarily make the raising of communication performance when communication distance reduces, the signal-to-noise ratio for receiving signal can be comprehensively considered Deng.In addition, other than above-mentioned evaluation index, the device of the embodiment of the present application it is also possible to consider the index of other evaluation communication qualities, For example, channel estimation value, throughput of system and those skilled in the art it is conceivable that any index.

In conclusion the device of the embodiment of the present application be able to respond in communication quality variation adjustment imaging sensor at least The pixel density of partial region, and then the energy consumption of receiving device is saved, and control simple.

In addition, reducing the mode of the pixel density in the region can select according to actual needs, the embodiment of the present application is to this It is not intended to limit.In one possible implementation, can by control, deformation occurs in controllable deforming material portion, with by it is described can The deformation in control deformable material portion accordingly reduces the pixel density in the region.It is adjusted by controlling the deformation in controllable deforming material portion The pixel distribution of whole described image sensor, scheme are simply easily realized.Has speech, as shown in Fig. 4 (i), control module 440 can be wrapped It includes:

Control submodule 444, deformation occurs for the controllable deforming material portion for controlling described image sensor, to pass through The deformation for stating controllable deforming material portion reduces the pixel density in the region.

Controllable deforming material portion is that can make it by certain the external action factor (such as outfield) of change effect thereon Deformation occurs, and when the outfield of effect thereon cancels or changes, the deformation in the controllable deforming material portion can restore.Described image The structure of sensor can be as described in above-mentioned combination Fig. 3 (a) to Fig. 3 (i).

As shown in figure 5, the embodiment of the present application also provides a kind of visible light signal receiving device 500, which includes Visible light signal receiving control device 400 shown in Fig. 4 (a) to Fig. 4 (h), in addition, further including imaging sensor 520, the figure As sensor 520 can adjust pixel density under the visible light signal receiving control device 400 control

In one possible implementation, described image sensor 520 can be in conjunction with any knot of Fig. 3 (a) to Fig. 3 (i) The imaging sensor of structure description.

Fig. 6 is a kind of structural schematic diagram of visible light signal receiving control device 600 provided by the embodiments of the present application, this Shen Please specific embodiment the specific implementation of visible light signal receiving control device 600 is not limited.As shown in fig. 6, this is visible Optical signal receiving control device 600 may include:

Processor (processor) 610,620, memory communication interface (Communications Interface) (memory) 630 and communication bus 640.Wherein:

Processor 610, communication interface 620 and memory 630 complete mutual communication by communication bus 640.

Communication interface 620, for being communicated with the network element of such as client etc..

Visible light in the Installation practice of above-mentioned Fig. 4 (a) specifically may be implemented for executing program 632 in processor 610 The correlation function of signal receiving control device.

Specifically, program 632 may include program code, and said program code includes computer operation instruction.

Processor 610 may be a central processor CPU or specific integrated circuit ASIC (Application Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present application Road.Program 632 specifically can be used for so that the visible light signal launch control unit 600 executes following steps:

The specific implementation of each step may refer to corresponding in corresponding steps and unit in above-described embodiment in program 632 Description, this will not be repeated here.It is apparent to those skilled in the art that for convenience and simplicity of description, it is above-mentioned to retouch The specific work process of the equipment and module stated can refer to corresponding processes in the foregoing method embodiment description, herein no longer It repeats.

It is apparent to those skilled in the art that for convenience and simplicity of description, the equipment of foregoing description , can be with reference to the corresponding description in aforementioned device embodiment with the specific work process of module, details are not described herein.

Although subject matter described herein is held in the execution on the computer systems of binding operation system and application program It is provided in capable general context, but it will be appreciated by the appropriately skilled person that may also be combined with other kinds of program module To execute other realizations.In general, program module include routines performing specific tasks or implementing specific abstract data types, Program, component, data structure and other kinds of structure.It will be understood by those skilled in the art that subject matter described herein can It is practiced, including handheld device, multicomputer system, based on microprocessor or can compiled with using other computer system configurations Journey consumption electronic product, minicomputer, mainframe computer etc., it is possible to use in wherein task by being connected by communication network In the distributed computing environment that remote processing devices execute.In a distributed computing environment, program module can be located locally and far In the two of journey memory storage device.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and method and step can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part or the technical solutions that contribute to original technology can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And computer-readable storage medium above-mentioned include with store as computer readable instructions, data structure, program module or its Any mode or technology of the information such as his data are come the physics volatile and non-volatile, removable and can not be situated between because of east realized Matter.Computer-readable storage medium specifically includes, but is not limited to, USB flash disk, mobile hard disk, read-only memory (ROM, Read- Only Memory), random access memory (RAM, Random Access Memory), Erasable Programmable Read Only Memory EPROM (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), flash memory or other solid-state memory technologies, CD-ROM, number are more Functional disc (DVD), HD-DVD, blue light (Blue-Ray) or other light storage devices, tape, disk storage or other magnetic storages Equipment or any other medium that can be used to store information needed and can be accessed by computer.

The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.

Claims

1. a kind of visible light signal method of reseptance, which is characterized in that the described method includes:

In response at least one of the visible light signal receiving device and at least visible light signal transmitting equipment Communication performance improves, at least reduce on the imaging sensor of the visible light signal receiving device with an at least visible light Signal emits the pixel density at least one relevant region in equipment.

2. the method according to claim 1, wherein the determining visible light signal receiving device and at least one can The communication performance for seeing optical signal launch equipment includes:

Determine that the visible light signal connects according at least to the visible light signal that each pixel unit of described image sensor receives The communication performance of receiving unit and at least visible light signal transmitting equipment.

3. according to the method described in claim 2, it is characterized in that, the determining visible light signal receiving device and at least one can The communication performance for seeing optical signal launch equipment includes:

The visible light signal that each pixel unit of demodulation described image sensor receives；

According at least to the modulated signal demodulated, the visible light letter from least visible light signal transmitting equipment is determined Number, and the visible light signal receiving device and an at least visible light are determined according at least to the determining visible light signal The communication performance of signal transmitting equipment.

4. according to the method described in claim 3, it is characterized in that, each pixel list according at least to described image sensor The visible light signal that member receives determines that the visible light signal receiving device and an at least visible light signal emit the logical of equipment Believe that performance includes:

According at least to the determining visible light signal, an at least evaluation index for the communication performance is determined；

Determine that the visible light signal receiving device and an at least visible light signal emit according at least to the evaluation index The communication performance of equipment.

5. according to the method described in claim 4, it is characterized in that, the evaluation index includes: at least visible light letter Number hot spot that is projected in described image sensor of transmitting equipment；

It is described to determine the visible light signal receiving device and an at least visible light signal according at least to the evaluation index In the communication performance for emitting equipment:

Become larger in response to the hot spot or the increment of the hot spot is more than first threshold or the hot spot is more than second threshold, really The fixed communication performance improves.

6. method according to claim 4 or 5, which is characterized in that the evaluation index includes: that the visible light signal connects Receiving unit receives the signal-to-noise ratio of the visible light signal from least visible light signal transmitting equipment transmitting；

Become larger in response to the signal-to-noise ratio or the increment of the signal-to-noise ratio is more than third threshold value or the signal-to-noise ratio is more than the 4th Threshold value determines that the communication performance improves.

7. according to the method described in claim 4, it is characterized in that, the evaluation index includes: that the visible light signal receives Equipment receives the bit error rate of the visible light signal from least visible light signal transmitting equipment transmitting；

It is reduced in response to the bit error rate or the reduction amount of the bit error rate is more than that the 5th threshold value or the bit error rate are lower than the Six threshold values determine that the communication performance improves.

8. the method according to claim 1, wherein the determining visible light signal receiving device and at least one can The communication performance for seeing optical signal launch equipment includes:

Determine the distance between the visible optical receiving device and at least visible light signal transmitting equipment；

Reduce in response to the distance or the reduction amount of the distance be more than that the 7th threshold value or the distance are lower than the 8th threshold value, Determine that the communication performance improves.

9. the method according to claim 1, wherein the determining visible light signal receiving device and at least one can The communication performance for seeing optical signal launch equipment includes:

Obtain the communication performance of the visible light signal receiving device and at least visible light signal transmitting equipment.

10. according to the method described in claim 3, it is characterized in that, described at least reduce sets with visible light signal reception Emit the picture at least one relevant region in equipment on standby imaging sensor to an at least visible light signal Plain density includes:

The visible light signal determination received according at least to each pixel unit of described image sensor is visible with described at least one Two pixel units of at least one relevant described image sensor in optical signal launch equipment.

11. according to the method described in claim 10, it is characterized in that, each pixel according at least to described image sensor Visible light signal that unit receives is determining emit with an at least visible light signal in equipment described at least one is related Two pixel units of described image sensor include:

According at least to the determining visible light signal, it is determining at least visible light signal transmitting equipment it is described extremely The region of a few relevant described image sensor.

12. the method according to claim 1, wherein described at least reduce sets with visible light signal reception Emit the picture at least one relevant region in equipment on standby imaging sensor to an at least visible light signal Plain density includes:

Deformation occurs in the controllable deforming material portion of control described image sensor, to pass through the deformation in controllable deforming material portion Reduce the pixel density in region.

13. according to the method for claim 12, which is characterized in that controllable deforming material portion at least by following a kind of or A variety of controllable deforming materials are prepared: piezoelectric material, electroactive polymer, photo-deformable material, magnetostriction materials.

14. a kind of visible light signal reception device, which is characterized in that described device includes:

One determining module, for determining the communicativeness of visible light signal receiving device and at least visible light signal transmitting equipment Energy；

One control module, for emitting equipment in response to the visible light signal receiving device and an at least visible light signal At least one of communication performance improve, at least reduce on the imaging sensor of the visible light signal receiving device with institute State the pixel density at least one relevant region at least visible light signal transmitting equipment.

15. device according to claim 14, which is characterized in that the determining module includes:

One first determines submodule, the visible light signal received for each pixel unit according at least to described image sensor Determine the communication performance of the visible light signal receiving device and at least visible light signal transmitting equipment.

16. device according to claim 15, which is characterized in that described first determines that submodule includes:

One demodulating unit, the visible light signal that each pixel unit for demodulating described image sensor receives；

One first determination unit, for determining from an at least visible light signal according at least to the modulated signal demodulated Emit the visible light signal of equipment, and determines the visible light signal receiving device according at least to the determining visible light signal With the communication performance of at least visible light signal transmitting equipment.

17. device according to claim 16, which is characterized in that first determination unit includes:

One first determines subelement, for determining the communication performance at least according at least to the determining visible light signal One evaluation index；

One second determine subelement, for according at least to the evaluation index determine the visible light signal receiving device with it is described The communication performance of at least visible light signal transmitting equipment.

18. device according to claim 17, which is characterized in that the evaluation index includes: an at least visible light The hot spot that signal transmitting equipment projects in described image sensor；

Described second determines that subelement becomes larger in response to the hot spot or the increment of the hot spot is more than first threshold or described Hot spot is more than second threshold, determines that the communication performance improves.

19. device described in 7 or 18 according to claim 1, which is characterized in that the evaluation index includes: the visible light letter Number receiving device receives the signal-to-noise ratio of the visible light signal from least visible light signal transmitting equipment transmitting；

It is described second determine subelement become larger in response to the signal-to-noise ratio or the increment of the signal-to-noise ratio be more than third threshold value or The signal-to-noise ratio is more than the 4th threshold value, determines that the communication performance improves.

20. device according to claim 17, which is characterized in that the evaluation index includes: that the visible light signal connects Receiving unit receives the bit error rate of the visible light signal from least visible light signal transmitting equipment transmitting；

It is described second determine subelement reduced in response to the bit error rate or the reduction amount of the bit error rate be more than the 5th threshold value, Or the bit error rate is lower than the 6th threshold value, determines that the communication performance improves.

21. device according to claim 14, which is characterized in that the determining module includes:

One third determines submodule, for determining that the visible optical receiving device and an at least visible light signal emit equipment The distance between；

One the 4th determine submodule, in response to it is described distance reduce or the distance reduction amount be more than the 7th threshold value or The distance is lower than the 8th threshold value, determines that the communication performance improves.

22. device according to claim 14, which is characterized in that the determining module includes:

One acquisition submodule emits the logical of equipment for obtaining the visible light signal receiving device and an at least visible light signal Believe performance.

23. device according to claim 16, which is characterized in that the control module includes:

One second determines submodule, the visible light signal received for each pixel unit according at least to described image sensor Determining two at least one relevant described image sensor at least visible light signal transmitting equipment Pixel unit.

24. device according to claim 23, which is characterized in that described second determines that submodule includes:

One second determination unit, for according at least to the determining visible light signal, a determining and at least visible light to be believed Number transmitting equipment at least one relevant described image sensor region.

25. device according to claim 14, which is characterized in that the control module includes:

One control submodule, deformation occurs for the controllable deforming material portion for controlling described image sensor, with by it is described can The deformation in control deformable material portion reduces the pixel density in the region.

26. device according to claim 25, which is characterized in that controllable deforming material portion at least by following a kind of or A variety of controllable deforming materials are prepared: piezoelectric material, electroactive polymer, photo-deformable material, magnetostriction materials.

27. a kind of visible light signal receiving device, which is characterized in that the equipment includes any one of claim 14-26 institute The visible light signal receiving control device stated.

28. equipment according to claim 27, which is characterized in that the equipment further include:

One imaging sensor, including multiple pixels, described image sensor can be in the visible light signal receiving control devices Control is lower to adjust pixel density.

29. equipment according to claim 28, which is characterized in that described image sensor further include:

Controllable deforming material portion, the controllable deforming material are connect with the multiple pixel respectively；Controllable deforming material portion It can deformation occurs and the pixel density of the multiple pixel is accordingly adjusted by the deformation under outer field action；The outfield It is controlled by described image acquisition control device.