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CN-122002019-A - Energy-saving interactive screen-throwing control system based on image perception

CN122002019ACN 122002019 ACN122002019 ACN 122002019ACN-122002019-A

Abstract

The invention relates to the technical field of stereoscopic video signal processing and interactive television terminal energy efficiency management, and discloses an energy-saving interactive screen-throwing control system based on image perception, which comprises a multichannel load demand mapping unit, a control unit and a control unit, wherein the multichannel load demand mapping unit analyzes an input signal stream into power demand space distribution of each node of a load network; the invention constructs a physical-level differential power supply protocol, and cuts off redundant electric energy input in a low-demand background area while ensuring dynamic voltage stabilization precision of a core load node, thereby improving energy utilization efficiency of an interactive three-dimensional display system and stability of depth reconstruction of video pictures.

Inventors

  • ZHOU LIUQING
  • HUANG HAIHUA
  • LUO ZHILING

Assignees

  • 北京视果空间智能科技有限公司

Dates

Publication Date
20260508
Application Date
20260210

Claims (10)

  1. 1. An energy-saving interactive screen projection control system based on image perception, which is characterized by comprising: The multichannel load demand mapping unit is used for accessing the space scalar field data in the input signal stream and the migration vector data of the dynamic instruction, and converting the space scalar field data into a space distribution signal representing the power demand of each node in the arrayed electric load network according to a preset energy efficiency mapping protocol; The gradient threshold power isolation logic unit is connected with the multichannel load demand mapping unit and is used for acquiring a space distribution signal and performing discrete space convolution operation to generate a power demand gradient field, defining a region with a gradient modulus exceeding a preset electric response critical threshold value in the power demand gradient field as a power abrupt change boundary, and further generating a power supply cut-off region control signal with a physical width by taking the power abrupt change boundary as a reference; And the differential power supply protocol is configured to apply the highest-priority truncated zero-level operation to the driving current of the power load node positioned in the power supply cut-off region, and simultaneously perform time-domain damping modulation to the driving current of the non-cut-off region according to migration vector data.
  2. 2. The image-aware-based energy-efficient interactive screen-projection control system of claim 1, wherein the gradient threshold power isolation logic comprises a solidified logic operation circuit configured to process the spatially distributed signal according to a specific gradient decision operator to determine a physical load partition coordinate set of the power supply cut-off region, wherein the gradient decision operator and the set definition logic executed by the logic operation circuit satisfy the following relation: , wherein, The system comprises a power supply cut-off region, a physical load partition coordinate set, a ∇ P (x, y) and a power demand gradient vector, wherein the physical load partition coordinate set is a power supply cut-off region; Modulo arithmetic representing a vector; An electrical response critical threshold preset for a minimum power step limit allowed based on a load network; and the structure element set is preset based on the physical and electrical coupling characteristics of the load nodes and is used for limiting the physical width of the power supply cut-off region extending to the low power consumption side along the power abrupt change boundary.
  3. 3. The image-sensing-based energy-saving interactive screen projection control system according to claim 1, wherein the distributed current injection regulator comprises a load vector time domain damping filter, the load vector time domain damping filter is used for monitoring the space migration rate of a dynamic instruction in a load matrix coordinate system in real time and dynamically adjusting the time response constant of drive current update according to the space migration rate, when the space migration rate is monitored to exceed a preset transient disturbance threshold value, the load vector time domain damping filter increases the time response constant to introduce over-damping filtering to restrain transient current oscillation of a load node, and when the dynamic instruction stops updating, the load vector time domain damping filter controls the drive current to enter an energy attenuation maintaining state and linearly reduces to a standby current level after a preset hysteresis buffer time window is finished.
  4. 4. The image-sensing-based energy-saving interactive screen projection control system according to claim 1, wherein the gradient threshold power isolation logic unit executes one-way side suppression logic when generating a power supply cut-off region control signal, the one-way side suppression logic limits the power supply cut-off region to expand only to one side with a larger absolute value of a power demand value in a power abrupt change boundary, the expanded physical width corresponds to an electrical interference radius parameter of a single load node, and the distributed current injection regulator only reduces the power supply duty ratio of the load node corresponding to a low-power consumption background region according to the one-way side suppression logic and maintains the rated input power of the load node corresponding to a high-power consumption core region.
  5. 5. The image-sensing-based energy-saving interactive screen-throwing control system according to claim 1, further comprising a bus power dynamic equalizer connected with the distributed current injection regulator, wherein the bus power dynamic equalizer is used for monitoring total input power of the arrayed power load network in real time, and redistributes the electric energy quota saved in the power supply cut-off region to a high-impedance core load region pointed by the dynamic instruction when the total input power is lower than a preset energy-saving datum line, and the redistribution operation is realized by lifting a driving current peak value of a load node corresponding to the high-impedance core load region, and the lifting amplitude is limited by a rated heat failure boundary of the load node.
  6. 6. The energy-saving interactive screen projection control system based on image perception according to claim 1 is characterized in that the multichannel load demand mapping unit specifically comprises a hardware Sobel operator accelerator, wherein the Sobel operator accelerator is physically integrated in a central time sequence control circuit of the system and is used for carrying out parallel convolution processing on input frame-by-frame load characteristic data and directly outputting gradient voltage signals representing the power change rate of each node, and the gradient threshold power isolation logic unit directly collects the gradient voltage signals and compares the gradient voltage signals with a reference voltage to generate a power supply cut-off area control signal in a hardware triggering mode.
  7. 7. The image-sensing-based energy-saving interactive screen projection control system according to claim 3, wherein a group of current recovery curve lookup tables based on nonlinear electrical response characteristics are preset in the load vector time domain damping filter, and in the energy attenuation maintaining state after the dynamic instruction stops updating, the distributed current injection regulator retrieves the current recovery curve lookup tables according to the current environment electrical parameters, selects a current falling slope matched with the current environment electrical parameters, and controls the driving current of the arrayed power load network to smoothly transition from a high power state to a low power state according to the slope.
  8. 8. The image-aware-based energy efficient interactive screen control system of claim 1, wherein the differential power supply protocol implemented by the distributed current injection regulator comprises a highest priority current fusing mechanism configured to force a duty cycle of the pwm signal of the load driving leg corresponding to a current region to be locked below a preset dead zone cut-off threshold corresponding to an on-voltage of the semiconductor power device once the power cut-off region control signal indicates that the current region is within the power cut-off region, regardless of a change in the spatial distribution signal.
  9. 9. The energy-saving interactive screen-throwing control system based on image perception according to claim 1, further comprising an environment parameter compensation circuit, wherein the environment parameter compensation circuit is connected in series with the output end of the distributed current injection regulator, the environment parameter compensation circuit is used for detecting radiation intensity of an external environment and superposing a global direct current bias component on driving current output by the distributed current injection regulator, the magnitude of the global direct current bias component is positively correlated with the radiation intensity of the external environment so as to compensate signal identification loss in a strong radiation environment, and the superposition operation does not change current clamping state in a power supply cut-off region.
  10. 10. The image-sensing-based energy-saving interactive screen projection control system according to claim 1, wherein the arrayed power load network is composed of a plurality of independent power electronic driving blocks, each power electronic driving block is provided with an independent power supply bus and a current feedback loop, the distributed current injection modulator is used for respectively controlling the switching state of each power electronic driving block through an independent addressing bus, a power supply cut-off area control signal generated by the gradient threshold power isolation logic unit is encoded into a group of binary mask streams, and the distributed current injection modulator is used for directly carrying out logic and operation on enable pins of the power electronic driving blocks by utilizing the binary mask streams, so that the cut-off zero level operation is realized in a hardware-level signal blocking mode.

Description

Energy-saving interactive screen-throwing control system based on image perception Technical Field The invention relates to an energy-saving interactive screen-throwing control system based on image perception, and belongs to the technical field of stereoscopic video signal processing and interactive television terminal energy efficiency management. Background In the current power supply and drive control technology of modern high-performance display equipment, partition backlight control has become the mainstream technical means for realizing high dynamic range and energy efficiency management, the basic operation logic of the technology is to dynamically adjust the driving current or duty ratio of each independent luminous partition in a backlight module according to the brightness statistical distribution of input image signals, so that the overall power consumption is reduced while the contrast of a picture is improved, in the traditional two-dimensional plane display scene, the power supply strategy based on the brightness power linear mapping can better balance the display quality and energy consumption index, the partition density is improved for improving the display effect under the limited cost, a plurality of exploration are performed in the hardware driving architecture level, for example, the Chinese patent with the authorized bulletin number of CN111445867B discloses a backlight partition driving module, a backlight device and a display device, the driving module is designed and selected, the hardware cost of the driving module is reduced, the physical basis is provided for increasing the number of the backlight partitions, the core control logic is still limited by the matching of two-dimensional plane signals and time sequences, the brightness following traditional category is not separated, the hardware topology repeated utilization strategy can not be utilized, the high-level visual parallax cannot be completely and the high-level visual-depth can not be completely-interacted, and the high-level visual-quality can not be completely-interacted with the depth-separated from the background level, and the high-level visual-depth can not be completely-separated, and the high-quality can not be clearly-separated from the depth situation can not be clearly and completely-separated, and completely-separated from the visual situation can not be completely, and completely. However, with the popularization of stereoscopic video communication, an interactive intelligent television system and a high-frequency human-computer interactive application scene, the parallax flow of the stereoscopic television system is reconstructed in real time, multi-view rendering and hardware driving characteristics are fundamentally changed, under the working condition of stereoscopic imaging or interactive projection, the visual attention of an observer presents strong depth focusing characteristics, namely, the sight is highly concentrated on a main plane or an interactive hot zone with zero parallax, physiological visual inhibition is generated on a background area with high parallax, the conventional stereoscopic television terminal driving system lacks the sensing capability of the parallax characteristics of the video, brightness driving logic with weight such as a full plane is still used, serious video signal rendering and driving consumption strategy mismatch is caused, the mismatch is reflected on power consumption, the system response speed is more influenced when the stereoscopic television terminal processes complex depth scenes, on one hand, the system continuously supplies high-power electric energy to a deep depth background area with non-focused human eyes, so that invalid dissipation of physical energy is caused, on the other hand, the conventional backlight driving unit is more limited by physical packaging size, photons emitted by the conventional backlight driving unit cannot be laterally diffused, the phenomenon is prevented from being caused, the phenomenon that the stereoscopic depth is highly-diffused on the side of the boundary of the background area, and the stereoscopic depth is highly-focused, and the shadow is not fully diffused, so that the stereoscopic depth is highly-focused on the boundary of the background area, and the stereoscopic image is formed, and the shadow is highly-intense, and the shadow image is not influenced, and the shadow is formed, and the shadow is highly-intense in the shadow region, and the shadow image is formed. Therefore, how to construct a power supply control scheme capable of analyzing depth parallax and interaction intention and realizing accurate space energy topology reconstruction and dynamic light energy isolation in a physical driving layer becomes a technical problem to be solved by the invention. Disclosure of Invention In order to solve the problems in the background technology, the technical scheme of the invention is as follows, an energy-saving inter