Search

CN-122002015-A - Multistage dormancy and wakeup control system and method for projector

CN122002015ACN 122002015 ACN122002015 ACN 122002015ACN-122002015-A

Abstract

The invention relates to the technical field of projector control, in particular to a multistage dormancy and awakening control system and method of a projector, wherein the system comprises a user input detection unit, a power supply assembly, a state management module, an awakening lock management module, a timing monitoring module and a peripheral power supply control module; the state management module is respectively connected with the other three core modules through signals, the wake-up lock management module maintains a state bitmap, processes lock application and release, the timing monitoring module calculates duration without operation, the peripheral power control module executes differential power supply control on the three groups of peripheral units, and the state management module realizes three-level state conversion. The scheme solves the problems of single dormancy, task interruption and rough peripheral management in the prior art, realizes balance of power consumption and response speed, protects key tasks and improves energy efficiency.

Inventors

  • LIU YING
  • WANG ZEZHI
  • ZHANG JIE

Assignees

  • 沂普光电(福建)有限公司

Dates

Publication Date
20260508
Application Date
20260410

Claims (10)

  1. 1. A multistage dormancy and awakening control system of a projector comprises a user input detection unit for detecting user operation signals and a power supply assembly for supplying power to peripheral equipment of the projector, and is characterized by further comprising a state management module, an awakening lock management module, a timing monitoring module and a peripheral equipment power supply control module, wherein the state management module is respectively connected with the awakening lock management module, the timing monitoring module and the peripheral equipment power supply control module in a signal connection mode, the awakening lock management module maintains a state bitmap, provides an awakening lock application interface and a release interface, is used for receiving a lock application request of a task unit and updating the bitmap state, sends a bitmap state signal to the state management module, the timing monitoring module is used for monitoring a user operation time stamp, calculating non-operation duration time and sending the non-operation duration time to the state management module, the peripheral equipment power supply control module is connected with three groups of peripheral equipment units, respectively for instantly recovering peripheral equipment groups, rapidly recovering peripheral equipment groups and completely shutting down the peripheral equipment groups, the peripheral equipment power supply control module receives control signals of the state management module, and performs differentiated power supply control on the three groups of peripheral equipment units, and receives non-operation duration data and the bitmap state signals, and controls the power supply control module according to preset conditions to the peripheral equipment power supply control module to realize full-function running state, low dormancy state and low-power consumption state.
  2. 2. The system of claim 1, wherein the state bitmap maintained by the wake-up lock management module is a 32-bit state bitmap, wherein the wake-up lock management module performs validity verification on the lock application request, wherein verification contents include task unit identity verification, task authority matching and lock resource conflict detection, the bitmap state is updated only when the identity is valid, the authorities are matched and there is no resource conflict, and wherein the wake-up lock management module monitors a lock holding time and performs timeout releasing operation when the lock holding time reaches 60 minutes.
  3. 3. The system of claim 1, wherein the timing monitor module integrates a clock counter with a timing accuracy of 1 ms, presets two non-operation duration thresholds of 300 s and 1800 s, respectively, calculates a difference between a current time and a last effective operation time, sends a first threshold signal to the state management module when the difference reaches 300 s, sends a second threshold signal when the difference reaches 1800 s, and feeds back a signal by means of hardware interrupt, wherein the interrupt response time is 10 μs.
  4. 4. The multistage dormancy and wakeup control system of a projector according to claim 1, wherein the differentiated power supply control of the peripheral power supply control module is realized through three independent control channels, namely a direct connection channel, a fast switching circuit channel with a switching response time of 100 microseconds and a relay switching channel, the instant recovery peripheral group is connected through the direct connection channel, the instant recovery peripheral group comprises a user input detection unit and a network interface unit, the direct connection channel keeps continuously supplying power, the fast recovery peripheral group is connected through the fast switching circuit channel, the fast recovery peripheral group comprises a main processor unit and a display processing unit, the complete shutdown peripheral group is connected through the relay switching channel, the complete shutdown peripheral group comprises an optical machine light source unit and an audio power amplifier unit, and when the relay switching channel is disconnected, all power supply is cut off, and the standby power consumption is 0.5 milliwatt.
  5. 5. The projector multistage sleep and wake-up control system according to claim 1, further comprising an environment sensing unit, wherein the environment sensing unit comprises an illumination sensor and a temperature sensor, the measurement range of the illumination sensor is 0lux to 1000lux, the measurement precision is 1lux, the measurement range of the temperature sensor is 0 ℃ to 80 ℃, the measurement precision is +/-0.5 ℃, the measurement precision is used for collecting environment temperature data and sending the environment temperature data to the state management module, and when the state management module performs state transition, the condition that the environment temperature data is lower than 45 ℃ is required to be met.
  6. 6. The multistage dormancy and wakeup control system of a projector according to claim 2, wherein the wakeup lock management module divides task units into a critical task unit and a normal task unit, the critical task unit comprises a firmware update task unit, a hardware calibration task unit and a data synchronization task unit, the normal task unit comprises an interface refreshing task unit, a log recording task unit and an auxiliary function operation task unit, the wakeup lock applied by the critical task unit is higher than the wakeup lock applied by the normal task unit, the priority is divided into 3 stages, the critical task unit corresponds to 1 stage and 2 stage, the normal task unit corresponds to 3 stage, and the wakeup lock management module records task execution exception logs, wherein the exception logs comprise task identifications, timeout duration, system current state data and resource occupation data.
  7. 7. The system of claim 5, further comprising an adaptive learning module in signal communication with the state management module, wherein the adaptive learning module updates the state transition optimization parameter once per week for a learning period of 7 days, wherein the state management module receives a 300 second no-operation duration threshold signal and triggers a transition from the full-function operational state to the low-power sleep state when the illumination intensity data is greater than 650lux, wherein the state management module maintains the full-function operational state when the illumination intensity data is 80lux to 650lux, and simultaneously outputs a control signal to reduce the fan speed to 60% of the rated speed, and closes the redundant interface, and wherein the state management module triggers a transition from the full-function operational state to the deep low-power sleep state when the illumination intensity data is less than 10 lux.
  8. 8. The multistage sleep and wake-up control system of a projector according to claim 1, wherein in a full-function operation state, all peripheral units are in an operation state, an optical engine light source unit operates at rated power, an output power range of an audio power amplification unit is 0.5W to 20W, system operation power consumption is 185W, in a low-power sleep state, the optical engine light source unit stops operation, the audio power amplification unit stops outputting, a main processor unit is switched to a low-power mode, system operation power consumption is 25W, in a deep low-power sleep state, peripheral groups are completely turned off to stop power supply, and the main processor unit only retains a wake-up signal detection function, and system operation power consumption is 8W.
  9. 9. A multistage sleep and wake-up control method for a projector, applied to the multistage sleep and wake-up control system for a projector according to any one of claims 1 to 8, comprising the steps of: The method comprises the following steps of S1, a state monitoring step, namely, triggering according to a 100 millisecond period through timer hardware, executing sensor data acquisition, user operation record reading and peripheral unit state detection, collecting system state data, environment parameter data and peripheral working state data, and transmitting all acquired data to a state decision unit; S2, a condition judgment step, namely, executing threshold comparison and logic operation in a comparator circuit, wherein the threshold comparison and logic operation comprises comparison of non-operation duration time and a preset threshold value, wake-up lock state bitmap judgment, environment parameter threshold judgment and peripheral working state judgment, and the comprehensive judgment result forms a state transition instruction which comprises maintaining a current state, switching to a low-power-consumption sleep state, switching to a deep low-power-consumption sleep state or waking up to a full-function running state; S3, a state switching step, namely outputting a power supply control signal according to a state switching instruction, controlling the power supply on-off of each peripheral unit according to a preset time sequence, and writing current state data of the system, task execution progress data and configuration parameter data into a nonvolatile memory; And S4, a state maintaining step, namely executing power consumption level adjustment and wake-up signal monitoring under the corresponding running state, monitoring the wake-up trigger signal in real time, and jumping to the state monitoring step when the effective wake-up trigger signal is detected.
  10. 10. The multistage dormancy and wakeup control method of a projector according to claim 9, wherein in the step S1, environment parameter data comprise illumination intensity data and temperature data, the acquisition frequency is 1 time/second, in the step S1, peripheral working state data comprise power supply state data, operation parameter data and fault information data of all peripheral units, the power supply state data, the operation parameter data and the fault information data are transmitted to a state decision unit through state feedback signals, in the step S2, wakeup lock state bitmap judgment comprises inquiring a 32-bit state bitmap, when a key task unit is executed, corresponding bit positions in the 32-bit state bitmap are set to be in an effective state, the state decision unit outputs an instruction for maintaining a full-function operation state until the execution progress of a key task unit reaches 100% and no fault information feedback, in the step S3, state switching time sequence is that when the key task unit is converted into a low-power-consumption dormancy state, power consumption adjustment operation is executed according to the sequence of a light source unit, an audio power amplifier unit and a main processor unit, when the operation interval is 500 milliseconds, the wakeup is executed according to the sequence of the main processor unit, the corresponding bit positions in the 32-bit state bitmap are set to be in the order of the state decision unit, when the key task unit is executed, the key task unit is converted into the full-power supply state, and after the key task unit is executed into the full-power supply state, and the full-function is executed, and the power supply state is quickly returns to the full-function state after the key task unit is executed, and the key task module is executed to the full-state, and the power supply state is quickly returns to the full-state after the power supply state is executed according to the full-state, and the time 1, and the full-state is subjected to the full-function state is subjected to the time test time to the time test state and the full-state after the time test function is subjected to the time test state and the full-state is subjected to the full-state and the time to the time test time to the full-state.

Description

Multistage dormancy and wakeup control system and method for projector Technical Field The invention relates to the technical field of projector control, in particular to a multistage dormancy and awakening control system and method of a projector. Background The projector is used as a common display device and widely applied to scenes such as conferences, teaching and the like. In the prior art, the sleep control of the projector mostly adopts a single mode, and the unified sleep instruction is triggered only by monitoring the user operation signal, so that the sleep strategy cannot be adjusted according to the use scene difference. In the scenes needing quick recovery such as meeting intermittence, the deep dormancy causes longer wakeup delay and influences the use experience, and in the scene leaving for a short time, the lack of the shallow dormancy option causes energy waste. More importantly, the prior art lacks a task perception mechanism, and key background tasks such as firmware update, hardware calibration and the like are easily forcibly interrupted due to no user operation, so that the system stability and the data integrity are damaged. Meanwhile, all peripheral devices are controlled by unified power supply, the peripheral devices with high power consumption are not completely powered off in standby, the peripheral devices with low power consumption need to be reinitialized when being awakened, the energy efficiency and the recovery speed are difficult to be considered, and the using experience and the reliability of the projector are seriously affected. Based on the above-mentioned problems, a technical solution that can achieve differentiated sleep, critical task protection and refined peripheral management is needed. Disclosure of Invention The invention aims to provide a multistage dormancy and awakening control system of a projector, which comprises a user input detection unit for detecting user operation signals, a power supply assembly for supplying power to the peripheral equipment of the projector, a state management module, an awakening lock management module, a timing monitoring module and a peripheral equipment power supply control module, wherein the state management module is respectively in signal connection with the awakening lock management module, the timing monitoring module and the peripheral equipment power supply control module, the awakening lock management module maintains a state bitmap, provides an awakening lock application interface and a release interface, is used for receiving a lock application request of a task unit and updating the bitmap state, sends the bitmap state signal to the state management module, the timing monitoring module is used for monitoring a user operation timestamp, calculating non-operation duration time and sending the non-operation duration time to the state management module, the peripheral equipment power supply control module is connected with three groups of peripheral equipment units, is used for immediately recovering the peripheral equipment groups and completely shutting down the peripheral equipment groups respectively, the peripheral equipment power supply control module receives control signals of the state management module, differential power supply control is executed for the three groups of peripheral equipment units, the state management module receives non-operation duration data and the state signals, the peripheral equipment power supply control module is controlled according to preset conditions, and the peripheral equipment power supply control module is controlled to realize full-function running state, low-sleep state and low-power consumption state. Preferably, the state bitmap maintained by the wake-up lock management module is a 32-bit state bitmap, the wake-up lock management module performs validity verification on the lock application request, verification contents comprise task unit identity verification, task authority matching and lock resource conflict detection, the bitmap state is updated only when the identities are legal, the authorities are matched and no resource conflict exists, the wake-up lock management module monitors the lock holding time, and when the lock holding time reaches 60 minutes, the wake-up lock management module performs overtime release operation. Further preferably, the timing monitoring module integrates a clock counter with the timing precision of 1 millisecond, presets two non-operation duration time thresholds of 300 seconds and 1800 seconds respectively, calculates the difference value between the current time and the last effective operation time, sends a first threshold signal to the state management module when the difference value reaches 300 seconds and sends a second threshold signal when the difference value reaches 1800 seconds, and feeds back a signal in a hardware interrupt mode, wherein the interrupt response time is 10 microseconds. Further preferably, the differen