An outdoor large-screen energy-saving system and method

Abstract

The present invention provides an outdoor large-screen energy-saving system and method. By determining the initial brightness adjustment parameters for the LED module based on environmental information and brightness parameters, it realizes adjustment according to the surrounding environment, reduces unnecessary resource waste, lowers energy consumption, and sets the brightness adjustment parameters considering performance parameters to ensure the normal operation of the outdoor large screen, avoiding affecting the light output characteristics of the LED and the lifespan of the device. Then, in combination with the heat dissipation parameters, the initial brightness adjustment parameters are adjusted to obtain the target brightness adjustment parameters, considering the influence of excessive heat dissipation on brightness setting to ensure the optimality of the obtained target brightness adjustment parameters, and ultimately ensuring the low-energy consumption and low-cost operation of the outdoor large screen.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving control, and particularly relates to an outdoor large-screen energy-saving system and method. Background Art

[0002] One application of ultra-high-definition video is the placement of outdoor large screens, which are set in various shopping malls, squares and other scenarios to achieve functions such as advertising and landmark display.

[0003] The light emission of the outdoor large screen is mainly realized by driving a plurality of LED modules. The traditional control method for LED modules is to uniformly control a plurality of LED modules, that is, to turn on or off simultaneously, and the control of the brightness of a plurality of LED modules will not be adaptively adjusted according to environmental changes. Moreover, LEDs are temperature-sensitive components. As the temperature rises, the light decay becomes larger, the color shifts, and the thermal expansion and contraction become more serious, affecting the airtightness of the LEDs, which seriously affects the light output characteristics and the lifespan of the devices, and increases energy consumption.

[0004] The above problems cause high energy consumption and high electricity costs during the use of outdoor large screens. Summary of the Invention

[0005] The present invention provides an outdoor large-screen energy-saving system and method to solve the problems raised in the background art.

[0006] An outdoor large-screen energy-saving system includes:

[0007] A parameter acquisition module, configured to acquire the environmental information around the outdoor large screen, and obtain the temperature parameters, brightness parameters and performance parameters of a plurality of LED modules inside the outdoor large screen;

[0008] A parameter adjustment module, configured to determine the initial brightness adjustment parameter for the LED module based on the environmental information and the brightness parameter;

[0009] A heat dissipation determination module, configured to determine the heat dissipation parameter for the outdoor large screen based on the temperature parameter and the performance parameter;

[0010] A secondary adjustment module, configured to adjust the initial brightness adjustment parameter in combination with the heat dissipation parameter to obtain the target brightness adjustment parameter;

[0011] A control module, configured to perform heat dissipation processing on the outdoor large screen according to the heat dissipation parameter, and perform brightness adjustment on the outdoor large screen according to the target brightness adjustment parameter.

[0012] Preferably, the parameter acquisition module includes:

[0013] An ambient brightness acquisition unit, configured to acquire the ambient brightness signal around the outdoor large screen to obtain the ambient brightness parameter;

[0014] The pedestrian flow collection unit is used to collect the pedestrian flow image information around the outdoor large screen to obtain the pedestrian flow parameters;

[0015] The ambient temperature collection unit is used to collect the temperature sensing signal of the outdoor large screen to obtain the ambient temperature parameter.

[0016] Preferably, the parameter collection module further includes:

[0017] The large screen temperature collection unit is used to collect the temperature sensing signals of several LED modules inside the outdoor large screen to obtain the outdoor large screen temperature parameter;

[0018] The large screen brightness collection unit is used to collect the brightness parameters of several LED modules inside the outdoor large screen;

[0019] The performance parameter collection unit is used to collect the light decay, color and airtightness parameters of several LED modules inside the outdoor large screen.

[0020] Preferably, the parameter adjustment module includes:

[0021] The parameter determination unit is used to obtain the ambient brightness parameter, pedestrian flow parameter and ambient temperature parameter from the environmental information, and determine the standard overall brightness of the outdoor large screen based on the ambient brightness parameter, determine the brightness floating weight of the outdoor large screen based on the pedestrian flow parameter, and determine the maximum set power of the outdoor large screen based on the ambient temperature parameter;

[0022] The adjustment parameter determination unit is used to determine the initial brightness adjustment parameter for the LED module based on the standard overall brightness, brightness floating weight and maximum set power.

[0023] Preferably, the adjustment parameter determination unit includes:

[0024] The difference determination unit is used to obtain the brightness difference between the brightness parameters of several LED modules inside the outdoor large screen and the standard overall brightness, and perform weighted calculation on the brightness difference based on the brightness floating weight to obtain the target brightness difference;

[0025] The local division unit is used to divide several LED modules into multiple LED module sets according to the control characteristics, and determine the local brightness parameter of each LED module set based on the brightness parameter of the LED module;

[0026] The difference judgment unit is used to judge whether the local brightness difference between the local brightness parameters of any LED module sets is greater than the preset local difference;

[0027] If so, it is determined that there is an abnormality in the local brightness between the LED module sets, and the correction coefficient for the LED module set is determined based on the local brightness difference;

[0028] Otherwise, determine that the local brightness between the LED module sets is normal, and determine that the correction coefficient is 1;

[0029] A correction unit, configured to determine an initial local adjustment parameter of the local brightness parameter of the LED module set based on the target brightness difference, and correct the local adjustment parameter based on the correction coefficient to obtain a second local adjustment parameter;

[0030] A power analysis unit, configured to obtain the operating power of the outdoor large screen under the second local adjustment parameter, and determine whether the operating power is greater than the maximum set power;

[0031] If so, obtain the power difference between the maximum set power and the operating power, obtain the position characteristics and color characteristics of the LED module set, determine the brightness weight for each LED module set, based on the power difference, convert it into a power reduction value for the LED module set based on the brightness weight, and adjust the second local adjustment parameter of the LED module set based on the power reduction value to obtain a target local adjustment parameter;

[0032] Otherwise, use the second local adjustment parameter as the target local adjustment parameter;

[0033] An integration unit, configured to use all the target local adjustment parameters as the initial brightness adjustment parameters of the LED modules.

[0034] Preferably, the heat dissipation determination module includes:

[0035] A performance judgment unit, configured to judge whether the performance parameters of the LED module are within the preset normal performance parameter range;

[0036] If so, determine that the normal operating temperature of the LED module is the first operating temperature;

[0037] Otherwise, determine that the normal operating temperature of the LED module is the second operating temperature;

[0038] A temperature judgment unit, configured to judge whether the temperature parameter of the LED module is less than the normal operating temperature;

[0039] If so, determine that the temperature during the operation of the LED module is normal, and determine that the heat dissipation parameter for the LED module is the conventional heat dissipation parameter;

[0040] Otherwise, determine that the temperature during the operation of the LED module is abnormal, determine a heat dissipation adjustment parameter based on the temperature difference between the temperature parameter and the normal operating temperature, and obtain the final heat dissipation parameter for the LED module based on the conventional heat dissipation parameter and the heat dissipation adjustment parameter.

[0041] Preferably, the secondary adjustment module includes:

[0042] A curve determination unit, configured to predict the heat dissipation condition of an outdoor large screen based on historical heat dissipation conditions, establish a temperature reduction curve that changes over time;

[0043] A feature determination unit, configured to determine real-time temperature parameters that change over time of a plurality of LED modules inside the outdoor large screen based on the temperature reduction curve and in combination with temperature parameters of the plurality of LED modules inside the outdoor large screen, and determine an initial influence feature of the temperature parameter on the brightness parameter and a real-time influence feature of the real-time temperature parameter on the brightness parameter based on a preset temperature-brightness influence relationship;

[0044] A sequence determination unit, configured to obtain a feature difference between the initial influence feature and the real-time influence feature, obtain a feature difference sequence that changes over time, and determine a target influence feature of the real-time temperature on a target brightness corresponding to an initial brightness adjustment parameter based on the feature difference sequence and in combination with the preset temperature-brightness influence relationship;

[0045] A dynamic determination unit, configured to inversely deduce a brightness difference sequence for the target brightness based on the target influence feature and the feature difference sequence, and determine a dynamic adjustment parameter sequence for the initial brightness adjustment parameter based on the brightness difference sequence, and use the dynamic adjustment parameter sequence as the target brightness adjustment parameter.

[0046] Preferably, the curve determination unit includes:

[0047] A numerical value determination unit, configured to determine influence numerical values of different historical heat dissipation parameters on the temperature parameters of the outdoor large screen based on historical heat dissipation conditions;

[0048] A matching unit, configured to match the heat dissipation parameter with all historical heat dissipation parameters, and determine a target influence numerical value from the influence numerical values according to the matching result;

[0049] A curve establishment unit, configured to establish a temperature reduction curve of the outdoor large screen that changes over time based on the target influence numerical value.

[0050] Preferably, the control module includes:

[0051] A heat dissipation control unit, configured to determine a heat dissipation control instruction for a heat dissipation device inside the outdoor large screen based on the heat dissipation parameter, and control the operation of the heat dissipation device inside the outdoor large screen according to the heat dissipation control instruction;

[0052] A brightness control unit, configured to determine a brightness control instruction for a plurality of LED modules inside the outdoor large screen based on the target brightness adjustment parameter, and control the operation of the plurality of LED modules inside the outdoor large screen according to the brightness control instruction.

[0053] An outdoor large screen energy-saving system, including:

[0054] S1: Collect the environmental information around the outdoor large screen, and obtain the temperature parameters, brightness parameters, and performance parameters of several LED modules inside the outdoor large screen;

[0055] S2: Determine the initial brightness adjustment parameters for the LED modules based on the environmental information and brightness parameters;

[0056] S3: Determine the heat dissipation parameters for the outdoor large screen based on the temperature parameters and performance parameters;

[0057] S4: Combine the heat dissipation parameters to adjust the initial brightness adjustment parameters to obtain the target brightness adjustment parameters;

[0058] S5: Perform heat dissipation treatment on the outdoor large screen according to the heat dissipation parameters, and perform brightness adjustment on the outdoor large screen according to the target brightness adjustment parameters.

[0059] Compared with the prior art, the present invention has the following beneficial effects:

[0060] By determining the initial brightness adjustment parameters for the LED modules based on the environmental information and brightness parameters, the adjustment according to the surrounding environment is realized, unnecessary resource waste is reduced, energy consumption is lowered, and the brightness adjustment parameters are set considering the performance parameters to ensure the normal operation of the outdoor large screen, avoiding affecting the light output characteristics of the LED and the lifespan of the device. Then, combining the heat dissipation parameters, the initial brightness adjustment parameters are adjusted to obtain the target brightness adjustment parameters, considering the influence of excessive heat dissipation on brightness setting to ensure the optimality of the obtained target brightness adjustment parameters, and finally ensuring the low energy consumption and low cost operation of the outdoor large screen.

[0061] Other features and advantages of the present invention will be described in the subsequent specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in this application document.

[0062] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Description of the Drawings

[0063] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0064] Figure 1 is a structural diagram of an energy-saving system for an outdoor large screen in an embodiment of the present invention;

[0065] Figure 2 is a structural diagram of a secondary adjustment module in an embodiment of the present invention;

[0066] Figure 3 This is a flowchart of an energy-saving method for an outdoor large screen in an embodiment of the present invention. Specific embodiments

[0067] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0068] Embodiment 1:

[0069] The embodiment of the present invention provides an energy-saving system for an outdoor large screen, as Figure 1 shown, including:

[0070] A parameter acquisition module, configured to acquire the environmental information around the outdoor large screen, and obtain the temperature parameters, brightness parameters, and performance parameters of several LED modules inside the outdoor large screen;

[0071] A parameter adjustment module, configured to determine the initial brightness adjustment parameters for the LED modules based on the environmental information and the brightness parameters;

[0072] A heat dissipation determination module, configured to determine the heat dissipation parameters for the outdoor large screen based on the temperature parameters and the performance parameters;

[0073] A secondary adjustment module, configured to adjust the initial brightness adjustment parameters in combination with the heat dissipation parameters to obtain the target brightness adjustment parameters;

[0074] A control module, configured to perform heat dissipation processing on the outdoor large screen according to the heat dissipation parameters, and perform brightness adjustment on the outdoor large screen according to the target brightness adjustment parameters.

[0075] In this embodiment, the environmental information around the outdoor large screen includes the environmental brightness, the number of people, and the environmental temperature.

[0076] In this embodiment, the performance parameters of several LED modules inside the outdoor large screen include light decay, color, and airtightness parameters.

[0077] In this embodiment, the heat dissipation parameters for the outdoor large screen are specifically the heat dissipation parameters for the heat dissipation device inside the outdoor large screen.

[0078] The beneficial effects of the above design solution are as follows: By determining the initial brightness adjustment parameters for the LED module based on environmental information and brightness parameters, adjustment according to the surrounding environment is achieved, unnecessary resource waste is reduced, energy consumption is lowered, and performance parameters are considered to set the brightness adjustment parameters to ensure the normal operation of the outdoor large screen, avoiding affecting the light output characteristics of the LED and the lifespan of the device. Then, in combination with the heat dissipation parameters, the initial brightness adjustment parameters are adjusted to obtain the target brightness adjustment parameters. Considering the impact of excessive heat dissipation on brightness setting, the optimality of the obtained target brightness adjustment parameters is ensured, and ultimately, low energy consumption and low cost operation of the outdoor large screen are guaranteed.

[0079] Embodiment 2:

[0080] Based on Embodiment 1, an outdoor large screen energy-saving system is provided in an embodiment of the present invention. The parameter acquisition module includes:

[0081] An ambient brightness acquisition unit for acquiring the ambient brightness signal around the outdoor large screen to obtain the ambient brightness parameter;

[0082] A pedestrian flow acquisition unit for acquiring the pedestrian flow image information around the outdoor large screen to obtain the pedestrian flow parameter;

[0083] An ambient temperature acquisition unit for acquiring the temperature sensing signal of the outdoor large screen to obtain the ambient temperature parameter.

[0084] The beneficial effects of the above design solution are as follows: By acquiring the ambient brightness signal around the outdoor large screen to obtain the ambient brightness parameter, acquiring the pedestrian flow image information around the outdoor large screen to obtain the pedestrian flow parameter, and acquiring the temperature sensing signal of the outdoor large screen to obtain the ambient temperature parameter, the acquisition of the environmental information around the outdoor large screen is realized, providing an information basis for the brightness energy-saving control of the outdoor large screen.

[0085] Embodiment 3:

[0086] Based on Embodiment 1, an outdoor large screen energy-saving system is provided in an embodiment of the present invention. The parameter acquisition module further includes:

[0087] A large screen temperature acquisition unit for acquiring the temperature sensing signals of several LED modules inside the outdoor large screen to obtain the outdoor large screen temperature parameter;

[0088] A large screen brightness acquisition unit for acquiring the brightness parameters of several LED modules inside the outdoor large screen;

[0089] A performance parameter acquisition unit for acquiring the light decay, color, and airtightness parameters of several LED modules inside the outdoor large screen.

[0090] The beneficial effects of the above design are as follows: By collecting the temperature sensing signals of several LED modules inside the outdoor large screen, the temperature parameters of the outdoor large screen are obtained, the brightness parameters of several LED modules inside the outdoor large screen are collected, and the light decay, color and airtightness parameters of several LED modules inside the outdoor large screen are collected, so as to obtain the performance parameters and operation parameters of the outdoor large screen with the large screen, realize the data acquisition of the operation of the outdoor large screen, and provide a data basis for further energy-saving control of the outdoor large screen.

[0091] Embodiment 4:

[0092] Based on Embodiment 1, an embodiment of the present invention provides an energy-saving system for an outdoor large screen. The parameter adjustment module includes:

[0093] A parameter determination unit for obtaining ambient brightness parameters, pedestrian flow parameters and ambient temperature parameters from environmental information, determining the standard overall brightness of the outdoor large screen based on the ambient brightness parameters, determining the brightness floating weight of the outdoor large screen based on the pedestrian flow parameters, and determining the maximum set power of the outdoor large screen based on the ambient temperature parameters;

[0094] An adjustment parameter determination unit for determining the initial brightness adjustment parameters for the LED modules based on the standard overall brightness, brightness floating weight and maximum set power.

[0095] In this embodiment, the smaller the pedestrian flow, the greater the corresponding brightness floating weight.

[0096] In this embodiment, the maximum set power is the maximum operable power of the outdoor large screen under the ambient temperature parameters.

[0097] The beneficial effects of the above design are as follows: By obtaining ambient brightness parameters, pedestrian flow parameters and ambient temperature parameters from environmental information, determining the standard overall brightness of the outdoor large screen based on the ambient brightness parameters, determining the brightness floating weight of the outdoor large screen based on the pedestrian flow parameters, and determining the maximum set power of the outdoor large screen based on the ambient temperature parameters, the determination of the normal operation parameters of the outdoor large screen is realized. Then, based on the standard overall brightness, brightness floating weight and maximum set power, the initial brightness adjustment parameters for the LED modules are determined, so as to realize the adjustment according to the surrounding environment, reduce unnecessary resource waste, reduce energy consumption, and consider the performance parameters to set the brightness adjustment parameters to ensure the normal operation of the outdoor large screen and avoid affecting the light output characteristics of the LED and the lifespan of the device.

[0098] Embodiment 5:

[0099] Based on Embodiment 4, an embodiment of the present invention provides an energy-saving system for an outdoor large screen. The adjustment parameter determination unit includes:

[0100] A difference determination unit, configured to obtain the brightness difference between the brightness parameters of several LED modules inside the outdoor large screen and the standard overall brightness, and perform weighted calculation on the brightness difference based on the brightness floating weight to obtain the target brightness difference;

[0101] A local division unit, configured to divide several LED modules into multiple LED module sets according to control characteristics, and determine the local brightness parameters of each LED module set based on the brightness parameters of the LED modules;

[0102] A difference judgment unit, configured to judge whether the local brightness difference between the local brightness parameters of any two LED module sets is greater than a preset local difference;

[0103] If so, determine that there is an abnormality in the local brightness between the LED module sets, and determine the correction coefficient for the LED module sets based on the local brightness difference;

[0104] Otherwise, determine that the local brightness between the LED module sets is normal, and determine the correction coefficient to be 1;

[0105] A correction unit, configured to determine the initial local adjustment parameter of the local brightness parameter of the LED module set based on the target brightness difference, and correct the local adjustment parameter based on the correction coefficient to obtain the second local adjustment parameter;

[0106] A power analysis unit, configured to obtain the operating power of the outdoor large screen under the second local adjustment parameter, and judge whether the operating power is greater than the maximum set power;

[0107] If so, obtain the power difference between the maximum set power and the operating power, obtain the position characteristics and color characteristics of the LED module sets, determine the brightness weight for each LED module set, convert the power difference into the power reduction value for the LED module sets based on the brightness weight, and adjust the second local adjustment parameter of the LED module sets based on the power reduction value to obtain the target local adjustment parameter;

[0108] Otherwise, use the second local adjustment parameter as the target local adjustment parameter;

[0109] An integration unit, configured to use all the target local adjustment parameters as the initial brightness adjustment parameters of the LED modules.

[0110] In this embodiment, each LED module set can be independently brightness-controlled.

[0111] In this embodiment, the greater the brightness weight, the more important the LED module set, and the lower the power reduction value.

[0112] The beneficial effects of the above design solution are as follows: By dividing several LED modules into multiple LED module sets according to control characteristics, grouped control of several LED modules is achieved, and different brightness parameters can be set for different combinations to achieve energy-saving effects. Then, considering the power difference between the maximum set power and the operating power to determine the initial brightness adjustment parameters of the final LED module, adjustment according to the surrounding environment is realized, unnecessary resource waste is reduced, energy consumption is lowered, and performance parameters are considered to set brightness adjustment parameters to ensure the normal operation of the outdoor large screen and avoid affecting the light output characteristics of the LED and the lifespan of the device.

[0113] Embodiment 6:

[0114] Based on Embodiment 1, an embodiment of the present invention provides an energy-saving system for an outdoor large screen. The heat dissipation determination module includes:

[0115] A performance judgment unit for judging whether the performance parameters of the LED module are within the preset normal performance parameter range;

[0116] If so, determine the normal operating temperature of the LED module as the first operating temperature;

[0117] Otherwise, determine the normal operating temperature of the LED module as the second operating temperature;

[0118] A temperature judgment unit for judging whether the temperature parameter of the LED module is less than the normal operating temperature;

[0119] If so, determine that the temperature of the LED module is normal during operation, and determine the heat dissipation parameter for the LED module as the conventional heat dissipation parameter;

[0120] Otherwise, determine that the temperature of the LED module is abnormal during operation, and based on the temperature difference between the temperature parameter and the normal operating temperature, determine the heat dissipation adjustment parameter on the basis of the conventional heat dissipation parameter. Based on the conventional heat dissipation parameter and the heat dissipation adjustment parameter, obtain the final heat dissipation parameter for the LED module.

[0121] The beneficial effects of the above design solution are as follows: By considering the performance parameters of the outdoor large screen to determine the operating temperature of the outdoor large screen under different performances, the rationality of determining the operating parameters of the outdoor large screen is ensured. Then, according to the difference between the actual operating temperature and the set operating temperature, reasonable heat dissipation parameters are set to achieve effective heat dissipation during the operation of the outdoor large screen and protect the lifespan of the device.

[0122] Embodiment 7:

[0123] Based on Embodiment 1, an embodiment of the present invention provides an energy-saving system for an outdoor large screen, as Figure 2 shown, the secondary adjustment module includes:

[0124] A curve determination unit, configured to predict the heat dissipation condition of an outdoor large screen based on historical heat dissipation conditions, and establish a temperature reduction curve that changes over time;

[0125] A feature determination unit, configured to determine real-time temperature parameters of several LED modules inside the outdoor large screen that change over time based on the temperature reduction curve and in combination with the temperature parameters of several LED modules inside the outdoor large screen, and determine an initial influence feature of the temperature parameter on the brightness parameter and a real-time influence feature of the real-time temperature parameter on the brightness parameter based on a preset temperature-brightness influence relationship;

[0126] A sequence determination unit, configured to obtain a feature difference between the initial influence feature and the real-time influence feature, obtain a feature difference sequence that changes over time, and determine a target influence feature of the real-time temperature on the target brightness corresponding to the initial brightness adjustment parameter based on the feature difference sequence and in combination with the preset temperature-brightness influence relationship;

[0127] A dynamic determination unit, configured to inversely deduce a brightness difference sequence for the target brightness based on the target influence feature and the feature difference sequence, and determine a dynamic adjustment parameter sequence for the initial brightness adjustment parameter based on the brightness difference sequence, and use the dynamic adjustment parameter sequence as the target brightness adjustment parameter.

[0128] The beneficial effects of the above design solution are as follows: By obtaining the feature difference between the initial influence feature and the real-time influence feature, obtaining a feature difference sequence that changes over time, and determining a target influence feature of the real-time temperature on the target brightness corresponding to the initial brightness adjustment parameter based on the feature difference sequence and in combination with the preset temperature-brightness influence relationship; inversely deducing a brightness difference sequence for the target brightness based on the target influence feature and the feature difference sequence, and determining a dynamic adjustment parameter sequence for the initial brightness adjustment parameter based on the brightness difference sequence, and using the dynamic adjustment parameter sequence as the target brightness adjustment parameter, realizing dynamic brightness adjustment of the outdoor large screen that changes over time, making the obtained target brightness adjustment parameter more real-time and accurate, considering the influence of overlong heat dissipation on brightness setting, ensuring the optimality of the obtained target brightness adjustment parameter, and finally ensuring the low energy consumption and low cost operation of the outdoor large screen.

[0129] Embodiment 8:

[0130] Based on Embodiment 7, an embodiment of the present invention provides an energy-saving system for an outdoor large screen. The curve determination unit includes:

[0131] A numerical value determination unit, configured to determine the influence numerical values of different historical heat dissipation parameters on the temperature parameters of the outdoor large screen based on historical heat dissipation conditions;

[0132] A matching unit, configured to match the heat dissipation parameter with all historical heat dissipation parameters, and determine a target influence numerical value from the influence numerical values according to the matching result;

[0133] A curve establishment unit that establishes a temperature reduction curve of the outdoor large screen changing with time based on the target influence value.

[0134] The beneficial effect of the above design solution is that by matching the heat dissipation parameters with all historical heat dissipation parameters, the target influence value is determined from the influence values according to the matching result; a temperature reduction curve of the outdoor large screen changing with time is established based on the target influence value, ensuring the accuracy of the predicted temperature reduction curve and providing an accurate data basis for determining the brightness adjustment parameters.

[0135] Embodiment 9:

[0136] Based on Embodiment 1, an embodiment of the present invention provides an energy-saving system for an outdoor large screen. The control module includes:

[0137] A heat dissipation control unit for determining a heat dissipation control instruction for the internal heat dissipation device of the outdoor large screen based on the heat dissipation parameters and controlling the operation of the internal heat dissipation device of the outdoor large screen according to the heat dissipation control instruction;

[0138] A brightness control unit for determining a brightness control instruction for several LED modules inside the outdoor large screen based on the target brightness adjustment parameters and controlling the operation of several LED modules inside the outdoor large screen according to the brightness control instruction.

[0139] The beneficial effect of the above design solution is that by determining the heat dissipation control instruction and the brightness control instruction, the heat dissipation control and brightness control of the outdoor large screen are realized, and the energy-saving operation of the outdoor large screen is achieved.

[0140] Embodiment 10:

[0141] An embodiment of the present invention provides an energy-saving system for an outdoor large screen, as Figure 3 shown, including:

[0142] S1: Collect the environmental information around the outdoor large screen and obtain the temperature parameters, brightness parameters, and performance parameters of several LED modules inside the outdoor large screen;

[0143] S2: Determine the initial brightness adjustment parameters for the LED modules based on the environmental information and the brightness parameters;

[0144] S3: Determine the heat dissipation parameters for the outdoor large screen based on the temperature parameters and the performance parameters;

[0145] S4: Combine the heat dissipation parameters to adjust the initial brightness adjustment parameters to obtain the target brightness adjustment parameters;

[0146] S5: Perform heat dissipation treatment on the outdoor large screen according to the heat dissipation parameters and perform brightness adjustment on the outdoor large screen according to the target brightness adjustment parameters.

[0147] In this embodiment, the environmental information around the outdoor large screen includes ambient brightness, pedestrian flow, and ambient temperature.

[0148] In this embodiment, the performance parameters of several LED modules inside the outdoor large screen include light decay, color, and airtightness parameters.

[0149] In this embodiment, the heat dissipation parameters of the outdoor large screen specifically refer to the heat dissipation parameters of the heat dissipation device inside the outdoor large screen.

[0150] The beneficial effects of the above design scheme are as follows: By determining the initial brightness adjustment parameters for the LED modules based on the environmental information and brightness parameters, the adjustment according to the surrounding environment is realized, unnecessary resource waste is reduced, energy consumption is lowered, and the brightness adjustment parameters are set considering the performance parameters to ensure the normal operation of the outdoor large screen, avoiding affecting the light output characteristics and the lifespan of the devices. Then, in combination with the heat dissipation parameters, the initial brightness adjustment parameters are adjusted to obtain the target brightness adjustment parameters, considering the influence of excessive heat dissipation on brightness setting to ensure the optimality of the obtained target brightness adjustment parameters, and finally ensuring the low energy consumption and low cost operation of the outdoor large screen.

[0151] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of this application document and its equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. An outdoor large-screen energy-saving system, characterized in that: include: Parameter acquisition module, used to collect environmental information around the outdoor large screen, and obtain temperature parameters, brightness parameters and performance parameters of several LED modules inside the outdoor large screen; The parameter adjustment module is used to determine the initial brightness adjustment parameters of the LED module based on the environmental information and the brightness parameters, including: A parameter determination unit is used to obtain an environmental brightness parameter, a human flow parameter and an environmental temperature parameter from environmental information, and determine a standard overall brightness of the outdoor large screen based on the environmental brightness parameter, determine a brightness floating weight of the outdoor large screen based on the human flow parameter, and determine a maximum setting power of the outdoor large screen based on the environmental temperature parameter; An adjustment parameter determination unit, used to determine an initial brightness adjustment parameter for the LED module based on a standard overall brightness, a brightness floating weight and a maximum set power; Wherein, the adjustment parameter determination unit includes: A difference determination unit is used to obtain the brightness difference between the brightness parameters of several LED modules inside the outdoor large screen and the standard overall brightness, and to perform weighted calculation on the brightness difference based on the brightness floating weight to obtain the target brightness difference; A local division unit, used to divide a plurality of LED modules into a plurality of LED module sets according to the control characteristics, and determine a local brightness parameter of each LED module set based on the brightness parameter of the LED module; A difference judgment unit, used to judge whether the local brightness difference of the local brightness parameters between any LED module sets is greater than a preset local difference; If so, determining that there is an abnormality in the local brightness between the LED module sets, and determining a correction coefficient for the LED module sets based on the local brightness difference; Otherwise, it is determined that the local brightness between the LED module sets is normal, and the correction coefficient is determined to be 1; A correction unit, configured to determine an initial local adjustment parameter of a local brightness parameter of the LED module set based on the target brightness difference, and to correct the local adjustment parameter based on a correction coefficient to obtain a second local adjustment parameter; A power analysis unit, used to obtain the operating power of the outdoor large screen under the second local adjustment parameter, and determine whether the operating power is greater than the maximum set power; If yes, obtain the power difference between the maximum set power and the operating power, and obtain the position characteristics and color characteristics of the LED module set, determine the brightness weight for each LED module set, convert the power difference into a power reduction value for the LED module set based on the brightness weight, adjust the second local adjustment parameter of the LED module set based on the power reduction value, and obtain the target local adjustment parameter; otherwise, taking the second local adjustment parameter as the target local adjustment parameter; An integration unit, used for taking all target local adjustment parameters as initial brightness adjustment parameters of the LED module; A heat dissipation determination module is used to determine heat dissipation parameters for the outdoor large screen based on temperature parameters and performance parameters; The secondary adjustment module is used to adjust the initial brightness adjustment parameter in combination with the heat dissipation parameter to obtain the target brightness adjustment parameter; The control module is used to perform heat dissipation processing on the outdoor large screen according to the heat dissipation parameters, and to adjust the brightness of the outdoor large screen according to the target brightness adjustment parameters.

2. An outdoor large screen energy saving system according to claim 1, characterized in that: The parameter acquisition module comprises: The ambient brightness acquisition unit is used to collect the ambient brightness signal around the outdoor large screen and obtain the ambient brightness parameters; A crowd flow collection unit is used to collect crowd flow image information around the outdoor large screen and obtain crowd flow parameters; The ambient temperature acquisition unit is used to collect the temperature sensor signal of the outdoor large screen to obtain the ambient temperature parameters.

3. The outdoor large-screen energy-saving system according to claim 1, characterized in that: The parameter acquisition module further includes: The large screen temperature acquisition unit is used to collect the temperature sensor signals of several LED modules inside the outdoor large screen to obtain the temperature parameters of the outdoor large screen; Large screen brightness acquisition unit, used to collect the brightness parameters of several LED modules inside the outdoor large screen; The performance parameter collection unit is used to collect the light decay, color and airtightness parameters of several LED modules inside the outdoor large screen.

4. The outdoor large-screen energy-saving system according to claim 1, characterized in that: The heat dissipation determination module includes: A performance judgment unit, used to judge whether the performance parameters of the LED module are within a preset normal performance parameter range; If so, determining that the normal operating temperature of the LED module is the first operating temperature; Otherwise, determining that the normal operating temperature of the LED module is the second operating temperature; A temperature judgment unit, used to judge whether the temperature parameter of the LED module is less than the normal operating temperature; If so, it is determined that the temperature of the LED module is normal during operation, and the heat dissipation parameters of the LED module are determined to be conventional heat dissipation parameters; Otherwise, it is determined that the temperature of the LED module is abnormal during operation. Based on the temperature difference between the temperature parameters and the normal operating temperature, the heat dissipation adjustment parameters based on the conventional heat dissipation parameters are determined. Based on the conventional heat dissipation parameters and the heat dissipation adjustment parameters, the final heat dissipation parameters for the LED module are obtained.

5. The outdoor large-screen energy-saving system according to claim 1, characterized in that: The secondary adjustment module comprises: A curve determination unit is used to predict the heat dissipation of the outdoor large screen by the heat dissipation parameters based on the historical heat dissipation conditions, and to establish a temperature reduction curve that changes over time; A characteristic determination unit is used to determine the real-time temperature parameters of several LED modules inside the outdoor large screen that change over time based on the temperature reduction curve and in combination with the temperature parameters of several LED modules inside the outdoor large screen, and to determine the initial influence characteristics of the temperature parameters on the brightness parameters and the real-time influence characteristics of the real-time temperature parameters on the brightness parameters based on a preset temperature-brightness influence relationship; A sequence determination unit is used to obtain a feature difference between an initial impact feature and a real-time impact feature, obtain a feature difference sequence that changes over time, and determine a target impact feature of the real-time temperature on the target brightness corresponding to the initial brightness adjustment parameter based on the feature difference sequence and a preset temperature-brightness impact relationship; The dynamic determination unit is used to reversely deduce a brightness difference sequence for the target brightness based on the target impact feature and the feature difference sequence, and dynamically adjust the parameter sequence of the initial brightness adjustment parameter based on the brightness difference sequence, and use the dynamic adjustment parameter sequence as the target brightness adjustment parameter.

6. An outdoor large screen energy saving system according to claim 5, characterized in that: The curve determination unit comprises: A value determination unit is used for historical heat dissipation conditions to determine the influence of different historical heat dissipation parameters on the temperature parameters of the outdoor large screen; A matching unit, used for matching the heat dissipation parameter with all historical heat dissipation parameters, and determining a target impact value from the impact value according to the matching result; The curve building unit builds a temperature reduction curve of the outdoor large screen over time based on the target impact value.

7. The outdoor large-screen energy-saving system according to claim 1, characterized in that: The control module comprises: A heat dissipation control unit, used to determine a heat dissipation control instruction for the internal heat dissipation device of the outdoor large screen based on the heat dissipation parameters, and control the operation of the internal heat dissipation device of the outdoor large screen according to the heat dissipation control instruction; The brightness control unit is used to determine the brightness control instructions for several LED modules inside the outdoor large screen based on the target brightness adjustment parameters, and control the operation of several LED modules inside the outdoor large screen according to the brightness control instructions.

8. An outdoor large screen energy saving method, specifically used in the system as claimed in any one of claims 1 to 7, characterized in that: include: S1: Collect environmental information around the outdoor large screen, and obtain temperature parameters, brightness parameters and performance parameters of several LED modules inside the outdoor large screen; S2: Determine initial brightness adjustment parameters for the LED module based on the environmental information and brightness parameters; S3: Determine the heat dissipation parameters for the outdoor large screen based on temperature parameters and performance parameters; S4: adjusting the initial brightness adjustment parameter in combination with the heat dissipation parameter to obtain the target brightness adjustment parameter; S5: Perform heat dissipation treatment on the outdoor large screen according to the heat dissipation parameters, and adjust the brightness of the outdoor large screen according to the target brightness adjustment parameters.

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