Heat dissipation optimization method and system for physiotherapy lamp

Abstract

The invention relates to the technical field of heat dissipation optimization, in particular to a heat dissipation optimization method and system for a physiotherapy lamp, and the method comprises the steps: determining whether to carry out the heat dissipation optimization or not according to a temperature reference value and a thermal load increment; in heat dissipation optimization, increasing adjustment is carried out on the rotating speed of the fan according to the abnormal evaluation value, and under the preset abnormal condition, it is determined that increasing adjustment or power adjustment analysis continues to be carried out on the rotating speed of the fan according to the rotating speed comparison value and the curve characterization value of the temperature change curve; in the power regulation analysis, determining an abnormal state according to the abnormal lamp bead distribution coefficient and the heat flow abnormal influence degree, and determining to carry out power regulation of part of abnormal lamp beads or power regulation of all abnormal lamp beads according to the abnormal state; and determining an adjustment coefficient according to the adjustment influence coefficient and the abnormal reference value, determining the power adjustment amount of each adjustment lamp bead based on the adjustment coefficient, and determining alternate adjustment or simultaneous adjustment according to the total power adjustment amount. The service life of the physiotherapy lamp can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat dissipation optimization, in particular to a heat dissipation optimization method and system for a physiotherapy lamp. BACKGROUND

[0002] As the core light-emitting element of a physiotherapy lamp, the lamp bead will inevitably generate a large amount of heat energy in the process of converting electrical energy into light energy of a specific wave band, resulting in a continuous increase in the temperature of the lamp panel. Therefore, how to improve the heat dissipation effect of the physiotherapy lamp is a technical problem that needs to be solved by those skilled in the art.

[0003] Chinese Patent Publication No. CN118189099A discloses a LED vehicle lamp heat dissipation method, device, electronic equipment and storage medium, which comprises: when the vehicle lamp is on, the system collects the vehicle lamp instruction, temperature, brightness, heat dissipation state and external environment temperature, and adjusts the heat dissipation strategy accordingly. If the temperature of the vehicle lamp exceeds the first temperature threshold, the fan is started to dissipate heat; if it continues to exceed the second temperature threshold, even if the fan is running at full speed, the liquid cooling system will be activated to cool down. When the external temperature reaches the set threshold, the fan and the liquid cooling system work simultaneously to ensure that the temperature is controlled within a safe range, optimize the performance of the vehicle lamp and prolong the service life. The heat dissipation fan and the liquid cooling state are adjusted by controlling the speed and flow rate respectively. It can be seen that the above technical solution has the following problems: when the heat dissipation device reaches the performance limit, it cannot actively reduce the heat from the heat source end adaptively in different ways according to the actual abnormal state, which may cause the temperature of the lamp to be out of control, resulting in poor service life of the lamp. SUMMARY

[0004] Therefore, the present application provides a heat dissipation optimization method and system for a physiotherapy lamp to overcome the problem in the prior art that when the heat dissipation device reaches the performance limit, it cannot actively reduce the heat from the heat source end adaptively in different ways according to the actual abnormal state, which may cause the temperature of the lamp to be out of control, resulting in poor service life of the lamp.

[0005] To achieve the above-mentioned purpose, the present application provides a heat dissipation optimization method for a physiotherapy lamp, comprising:

[0006] determining whether to perform heat dissipation optimization according to the temperature reference value and the heat load increment;

[0007] In the heat dissipation optimization, the fan speed is increased according to the abnormal evaluation value, and under the preset abnormal condition, the fan speed is continuously increased or power adjustment analysis is performed according to the speed ratio value and the curve representation value of the temperature change curve.

[0008] In the power adjustment analysis, the abnormal state is determined according to the abnormal lamp bead distribution coefficient and the heat flow abnormal influence degree, and partial abnormal lamp bead power adjustment or full abnormal lamp bead power adjustment is performed according to the abnormal state.

[0009] The adjustment coefficient is determined according to the adjustment influence coefficient and the abnormal reference value, and the power adjustment amount of each adjustment lamp bead is determined based on the adjustment coefficient, and the total power adjustment amount is determined to perform alternating adjustment or simultaneous adjustment;

[0010] The preset abnormal condition is that the temperature adjustment amount is less than the preset temperature adjustment amount.

[0011] Further, if the temperature reference value is greater than or equal to the preset temperature reference value or the heat load increment is greater than or equal to the preset heat load increment, heat dissipation optimization is performed.

[0012] Further, the fan speed is increased according to the abnormal evaluation value;

[0013] The increase value of the fan speed and the abnormal evaluation value are in a positive correlation.

[0014] Further, the fan speed is increased or power adjustment analysis is performed according to the speed ratio value and the curve representation value of the temperature change curve, including:

[0015] If the speed ratio value is less than the preset speed ratio value or the curve representation value is greater than or equal to the preset curve representation value, power adjustment analysis is performed;

[0016] If the speed ratio value is greater than or equal to the preset speed ratio value and the curve representation value is less than the preset curve representation value, the fan speed is continuously increased;

[0017] The curve representation value of the temperature change curve is determined based on the slope deviation and the abnormal duration.

[0018] Further, if the abnormal state is that the abnormal lamp bead distribution coefficient is greater than or equal to the preset abnormal lamp bead distribution coefficient and the heat flow abnormal influence degree is less than the preset heat flow abnormal influence degree, partial abnormal lamp bead power adjustment is performed.

[0019] When the partial abnormal lamp bead adjustment is performed, the lamp bead combination is determined based on the distance reference value, and the number of adjustment lamp beads corresponding to each lamp bead combination is determined based on the combination abnormality degree.

[0020] Further, if the abnormal state is that the abnormal lamp bead distribution coefficient is less than the preset abnormal lamp bead distribution coefficient or the heat flow abnormal influence degree is greater than or equal to the preset heat flow abnormal influence degree, total abnormal lamp bead power adjustment is performed.

[0021] Further, the power adjustment amount of each adjustment lamp bead is determined based on the adjustment coefficient;

[0022] The power adjustment amount of a single adjustment lamp bead and the adjustment coefficient of the adjustment lamp bead are in a positive correlation, and the adjustment coefficient and the adjustment influence coefficient and the abnormal reference value are in a positive correlation.

[0023] Furthermore, if the total power adjustment is less than the preset total power adjustment, then simultaneous adjustment is performed.

[0024] Furthermore, if the total power adjustment is greater than or equal to the preset total power adjustment, then alternating adjustment is performed;

[0025] In the alternating adjustment, the adjustment lamps are sorted in descending order of power adjustment amount. The adjustment lamps in odd-numbered order are recorded in the first adjustment set, and the adjustment lamps in even-numbered order are recorded in the second adjustment set. The two adjustment sets alternately reduce the power. The time for a single adjustment set to reduce the power is positively correlated with the abnormal temperature value corresponding to that adjustment set.

[0026] The present invention also provides a heat dissipation optimization system for a physiotherapy lamp, comprising:

[0027] Temperature acquisition module, used to acquire the temperature of the lamp beads in the physiotherapy lamp;

[0028] An optimization determination module, which is connected to the temperature acquisition module, is used to determine whether to perform heat dissipation optimization based on the temperature reference value and the heat load increment.

[0029] The heat dissipation optimization module is connected to the temperature acquisition module and the optimization determination module respectively. It is used to increase the fan speed according to the abnormal evaluation value in the heat dissipation optimization, and under the preset abnormal conditions, determine whether to continue to increase the fan speed or perform power adjustment analysis according to the speed comparison value and the curve characterization value of the temperature change curve.

[0030] The adjustment and analysis module is connected to the temperature acquisition module and the heat dissipation optimization module respectively. In the power adjustment analysis, it is used to identify abnormal LEDs based on the degree of temperature anomaly, determine the abnormal state based on the distribution coefficient of abnormal LEDs and the degree of influence of heat flow anomaly, and determine whether to adjust the power of some abnormal LEDs or all abnormal LEDs based on the abnormal state.

[0031] The power adjustment module, which is connected to the adjustment analysis module, is used to determine the adjustment coefficient based on the adjustment influence coefficient and the abnormal reference value, and to determine the power adjustment amount of each adjustment lamp based on the adjustment coefficient, and to determine whether to perform alternating adjustment or simultaneous adjustment based on the total power adjustment amount.

[0032] Compared with the prior art, the beneficial effects of the present invention are that the technical solution of the present invention effectively reflects the real-time thermal condition and heat accumulation trend of the physiotherapy lamp through the temperature reference value and the heat load increment, and then determines whether to optimize heat dissipation based on the temperature reference value and the heat load increment, making heat dissipation adjustment more targeted, which is conducive to ensuring the stable operation of the physiotherapy lamp and extending the service life of the lamp beads.

[0033] Furthermore, in this invention, the remaining potential of the fan's heat dissipation capacity and the actual effect of the current heat dissipation measures are effectively reflected by the speed comparison value and the curve characterization value of the temperature change curve. Then, based on the speed comparison value and the curve characterization value of the temperature change curve, the fan speed can be adaptively increased or the power can be adjusted, so that the adjustment method is more in line with the actual application scenario and is conducive to extending the life of the LED.

[0034] Furthermore, this invention effectively reflects the distribution status of abnormal LED beads and the adaptability of the heat dissipation environment by using the abnormal LED bead distribution coefficient and the abnormal heat flow influence degree. Then, based on the abnormal status, it adaptively determines whether to adjust the power of some abnormal LED beads or all abnormal LED beads, making the power adjustment strategy more precise. This helps to ensure the safe operation of the physiotherapy lamp, avoid LED bead damage due to high temperature, and maximize the effective physiotherapy output of the device, thereby improving the stability and practicality of the physiotherapy lamp operation.

[0035] Furthermore, this invention effectively reflects the influence weight of the regulating lamp beads in the heat accumulation correlation and the severity of their own overheating by adjusting the influence coefficient and abnormal reference value. Then, the adjustment coefficient is determined according to the adjustment influence coefficient and abnormal reference value, and the power adjustment amount of each regulating lamp bead is determined by the adjustment coefficient. This is conducive to achieving precise matching and hierarchical control of power adjustment. The total power adjustment amount effectively reflects the scale of the overall power adjustment demand and the potential impact on the total output power of the physiotherapy lamp. Then, according to the total power adjustment amount, alternating or simultaneous adjustment can be adaptively selected, which is conducive to establishing a dynamic balance between efficient temperature control and ensuring the physiotherapy effect, and ultimately achieving the dual goals of heat dissipation and effective physiotherapy. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the heat dissipation optimization method for a physiotherapy lamp according to the present invention;

[0037] Figure 2 This is a flowchart illustrating the process of determining whether to perform heat dissipation optimization based on temperature reference values ​​and heat load increments in this invention.

[0038] Figure 3 This is a flowchart illustrating the process of determining whether to further increase the fan speed or perform power adjustment based on the speed ratio comparison value and the curve characterization value of the temperature change curve in this invention.

[0039] Figure 4 This is a module connection diagram of the heat dissipation optimization system for physiotherapy lamps according to the present invention. Detailed Implementation

[0040] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0043] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Please see Figures 1 to 3 As shown, the present invention provides a heat dissipation optimization method for a physiotherapy lamp, comprising:

[0045] Step S1: Determine whether to optimize heat dissipation based on the temperature reference value and the heat load increment;

[0046] In step S2, during heat dissipation optimization, the fan speed is increased based on the abnormal assessment value. Under preset abnormal conditions, the fan speed is further increased or power adjustment is performed based on the speed comparison value and the curve characterization value of the temperature change curve.

[0047] In step S3, during the power adjustment analysis, abnormal LED beads are identified based on the degree of temperature anomaly, abnormal states are determined based on the distribution coefficient of abnormal LED beads and the degree of influence of abnormal heat flow, and power adjustment of some or all abnormal LED beads is determined based on the abnormal state.

[0048] Step S4: Determine the adjustment coefficient based on the adjustment influence coefficient and the abnormal reference value, and determine the power adjustment amount of each adjustment lamp based on the adjustment coefficient. Determine whether to perform alternating adjustment or simultaneous adjustment based on the total power adjustment amount.

[0049] The preset abnormal condition is that the temperature adjustment amount is less than the preset temperature adjustment amount.

[0050] The application scenario of this invention is the optimization of heat dissipation in physiotherapy lamps. This invention has several historical records, each of which records at least one instance of heat dissipation optimization of the physiotherapy lamp, including temperature adjustment, abnormal evaluation value, slope deviation, and abnormal duration. Each historical record also has a corresponding pass / fail mark, which records whether the heat dissipation optimization process of the physiotherapy lamp meets the user's needs. The pass / fail mark can be recorded manually. It is understood that the user can determine whether the heat dissipation optimization process of the physiotherapy lamp meets the requirements based on self-defined indicators. Self-defined indicators can be, but are not limited to, the number of abnormalities, which will not be elaborated here. The number of abnormalities is the number of times the temperature of the lamp beads of the physiotherapy lamp exceeds 45°C after temperature optimization. The temperature of the lamp beads is monitored by an NTC thermistor.

[0051] In this invention, all the LED beads in the physiotherapy lamp are connected in parallel to the circuit, and the fan is a heat dissipation fan.

[0052] Temperature adjustment amount = Temperature reference value - Maximum value of the temperature corresponding to each lamp bead of the physiotherapy lamp at the first reference time;

[0053] The first reference time is the time that is later than the target time but 5 minutes away from the target time;

[0054] The user can determine the value of the preset temperature adjustment amount according to the actual application scenario. The greater the user's requirement for improving the accuracy of heat dissipation optimization, the smaller the value of the preset temperature adjustment amount. A method for determining the preset temperature adjustment amount is provided, which detects the user's historical records of heat dissipation optimization and records the average value of the temperature adjustment amount corresponding to the historical records that meet the user's needs as the preset temperature adjustment amount.

[0055] Specifically, if the temperature reference value is greater than or equal to the preset temperature reference value or the heat load increment is greater than or equal to the preset heat load increment, then heat dissipation optimization is performed.

[0056] Specifically, if the temperature reference value is less than the preset temperature reference value and the heat load increment is less than the preset heat load increment, then no heat dissipation optimization is required.

[0057] The moment when it is determined whether to optimize heat dissipation based on the temperature reference value and the heat load increment is recorded as the target time. The temperature reference value is the maximum value of the temperature of each lamp bead of the physiotherapy lamp at the target time.

[0058] The second reference time is a time earlier than the target time and a preset time away from the target time; the greater the accuracy of the user's determination of the heat load increment, the smaller the value of the preset time. One preset time value is provided, which is 5 minutes.

[0059] Heat load increment = heat conversion coefficient × (power of the physiotherapy lamp at the target time - power of the physiotherapy lamp at the second reference time) / (5 × 60), the heat conversion coefficient is 0.75, the unit of heat load increment is W / s, the power of the physiotherapy lamp is the sum of the power of each lamp bead, the power of a single lamp bead = the current of that lamp bead × the current of that lamp bead, the voltage of a single lamp bead is indirectly obtained by connecting a 0.1Ω resistor in parallel across the lamp bead and amplifying the small voltage drop across the resistor through a differential amplifier circuit to a range that the microcontroller can collect; the current corresponding to a single lamp bead is collected by using a Hall current sensor;

[0060] Users can determine the preset temperature reference value and preset heat load increment based on the actual application scenario. The greater the user's need for accuracy in improving the timeliness of heat dissipation optimization of the physiotherapy lamp, the smaller the preset temperature reference value and preset heat load increment will be. One preset temperature reference value and preset heat load increment are provided, with a preset temperature reference value of 40℃ and a preset heat load increment of 0.3W / s.

[0061] Specifically, the fan speed is increased based on the abnormal assessment value;

[0062] The increase in fan speed is positively correlated with the abnormal assessment value.

[0063] Specifically, the abnormal assessment value = temperature reference value / preset temperature reference value × first weighting coefficient + heat load increment / preset heat load increment × second weighting coefficient, where the first weighting coefficient is 0.7 and the second weighting coefficient is 0.3;

[0064] The increase in fan speed = abnormal assessment value / average of the abnormal assessment values ​​corresponding to the historical records that can meet user needs × speed threshold, where the speed threshold is 1000 rpm;

[0065] It should be noted that a = a0 + a1, where a0 is the fan speed at the target time and a1 is the increase in fan speed. If a is greater than the fan's rated speed, the fan speed will be adjusted to the rated speed.

[0066] Specifically, based on the speed comparison value and the curve representation value of the temperature change curve, the analysis determines whether to continue increasing the fan speed or to perform power adjustment, including:

[0067] If the speed comparison value is less than the preset speed comparison value or the curve characterization value is greater than or equal to the preset curve characterization value, then power regulation analysis is performed;

[0068] If the speed comparison value is greater than or equal to the preset speed comparison value and the curve representation value is less than the preset curve representation value, then the fan speed will continue to be increased.

[0069] The curve characterization value of the temperature change curve is determined based on the slope deviation and the duration of the anomaly.

[0070] Specifically, the speed ratio = fan rated speed - a;

[0071] The temperature change curve is formed by collecting the temperature of each LED at various time points from the target time to the first reference time, filtering out the maximum value of the temperature of each LED at each time point, and connecting the "time point - maximum value of temperature of each LED" data to form a continuous curve; a method for setting time points is provided, with the target time as the starting point and an interval point set every 5 seconds, and the starting point and each interval point are recorded as time points.

[0072] Curve representation value = slope deviation / average slope deviation corresponding to historical records that can meet user needs × deviation weight coefficient + abnormal persistence / average abnormal persistence corresponding to historical records that can meet user needs × abnormal weight coefficient, where both deviation weight coefficient and abnormal weight coefficient are 0.5;

[0073] Among the time points between the target time and the first reference time, the time point adjacent to the target time is recorded as the first time point, and the time point adjacent to the first reference time is recorded as the second time point;

[0074] Slope deviation = Absolute value of the slope of the curve between the target time and the first time point - Absolute value of the slope of the curve between the second time point and the first reference time.

[0075] The curve between two adjacent time points in the temperature change curve is recorded as a curve segment. The slope of each curve segment is detected, and the curve segment with a slope greater than the preset slope is recorded as an abnormal curve segment.

[0076] The user can determine the value of the preset slope according to the actual application scenario. The greater the user's need for precision in improving the heat dissipation optimization effect, the smaller the value of the preset slope. A preset slope value is provided, which is the minimum value of the slope corresponding to each abnormal curve segment in the historical record that can meet the user's needs.

[0077] Abnormal duration = Number of abnormal curve segments in the temperature change curve / Total number of curve segments in the temperature change curve;

[0078] The user can determine the preset speed comparison value and preset curve characterization value according to the actual application scenario. The larger the preset speed comparison value and preset curve characterization value, the greater the user's need for power regulation analysis. A method for determining the preset speed comparison value and preset curve characterization value is provided, which detects the user's historical records of power regulation analysis, and records the average value of the speed comparison value and the average value of the curve characterization value corresponding to the historical records that meet the user's needs as the preset speed comparison value and preset curve characterization value, respectively.

[0079] If you continue to increase the fan speed, increase the fan speed to the fan's rated speed.

[0080] It is understandable that the speed comparison value and the curve characterization value of the temperature change curve can effectively reflect the remaining space of the fan's heat dissipation capacity and the actual cooling effect of the current heat dissipation measures. When the speed comparison value is less than the preset speed comparison value or the curve characterization value is greater than or equal to the preset curve characterization value, it indicates that the fan has no sufficient speed increase space, or the existing heat dissipation measures have failed to effectively curb the temperature rise. Continuing to rely on fan adjustment will not solve the heat problem. Therefore, power adjustment analysis is performed.

[0081] When the speed comparison value is greater than or equal to the preset speed comparison value and the curve characterization value is less than the preset curve characterization value, it indicates that the fan still has great potential for speed increase and the existing heat dissipation measures show a good cooling trend. Continuing to increase the fan speed can effectively alleviate the thermal anomaly. Therefore, the fan speed will continue to be increased.

[0082] Specifically, if the abnormal state is that the abnormal lamp distribution coefficient is greater than or equal to the preset abnormal lamp distribution coefficient and the heat flow abnormality influence degree is less than the preset heat flow abnormality influence degree, then the power of some abnormal lamps will be adjusted.

[0083] When adjusting some abnormal LED beads, the combination of LED beads is determined based on the distance reference value, and the number of LED beads to be adjusted for each combination is determined based on the degree of abnormality of the combination.

[0084] Specifically, the abnormal state includes a first abnormal state and a second abnormal state. The first abnormal state is when the abnormal LED distribution coefficient is greater than or equal to the preset abnormal LED distribution coefficient and the heat flow abnormality influence degree is less than the preset heat flow abnormality influence degree. The second abnormal state is when the abnormal LED distribution coefficient is less than the preset abnormal LED distribution coefficient or the heat flow abnormality influence degree is greater than or equal to the preset heat flow abnormality influence degree.

[0085] Abnormal LEDs are those whose temperature exceeds the preset temperature reference value at the first reference time.

[0086] The distribution coefficient of abnormal LED beads is the average of the average distances corresponding to each abnormal LED bead. For a single abnormal LED bead, this abnormal LED bead is designated as the target abnormal LED bead, and the other abnormal LED beads are designated as reference abnormal LED beads. The average distance corresponding to the target abnormal LED bead is the average of the reference distances between each reference abnormal LED bead and the target abnormal LED bead. It should be noted that if there are no reference abnormal LED beads, the average distance corresponding to the target abnormal LED bead is 0. The reference distance between any two LED beads is the shortest distance between the two LED beads.

[0087] The impact of abnormal heat flow = (average of the shortest distance from each abnormal LED to the fan / average of the shortest distance from each LED to the fan) × temperature correction factor, where the temperature correction factor is 1.3;

[0088] The user can determine the values ​​of the preset abnormal LED distribution coefficient and the preset heat flow abnormality impact degree according to the actual application scenario. The smaller the value of the preset abnormal LED distribution coefficient and the larger the value of the preset heat flow abnormality impact degree, the greater the user's need to adjust the power of some abnormal LEDs. A method for determining the values ​​of the preset abnormal LED distribution coefficient and the preset heat flow abnormality impact degree is provided. The historical records of the user's power adjustment of some abnormal LEDs are detected, and the average value of the abnormal LED distribution coefficient and the average value of the heat flow abnormality impact degree corresponding to the historical records that meet the user's needs are respectively recorded as the preset abnormal LED distribution coefficient and the preset heat flow abnormality impact degree.

[0089] When determining the LED combination based on the distance reference value, a combination analysis is performed on each abnormal LED. When performing a combination analysis on a single abnormal LED, the abnormal LED is recorded as the target abnormal LED, and other abnormal LEDs other than the target abnormal LED are recorded as reference abnormal LEDs. All reference abnormal LEDs whose distance reference value from the target abnormal LED is less than the preset distance reference value, as well as the target abnormal LED, are recorded into an LED combination. The combination analysis continues for abnormal LEDs not recorded into LED combinations until all abnormal LEDs are recorded into LED combinations, at which point the combination analysis stops.

[0090] The user can determine the preset distance reference value according to the actual application scenario. The greater the user's need for precision in improving the heat dissipation optimization effect, the smaller the preset distance reference value will be. One preset distance reference value is provided, which is 4cm.

[0091] The combination anomaly degree corresponding to a single LED combination = the number of abnormal LEDs corresponding to this combination / the average number of abnormal LEDs corresponding to all LED combinations + the combination temperature corresponding to this combination / the average combination temperature corresponding to all LED combinations.

[0092] The number of abnormal LEDs corresponding to a single LED combination is the total number of abnormal LEDs in that combination, and the LED combination temperature corresponding to a single LED combination is the maximum value of the temperature of each abnormal LED in that combination at the first reference time.

[0093] The number of adjustable LED beads, n, corresponding to a single LED bead combination is the smallest integer greater than or equal to n0.

[0094] If the combination anomaly degree is greater than the preset combination anomaly degree, then n0 = (combination anomaly degree - preset combination anomaly degree) / preset combination anomaly degree × number of abnormal LEDs corresponding to the LED combination;

[0095] If the combined anomaly degree is less than or equal to the preset combined anomaly degree, then n0=1;

[0096] The user can determine the value of the preset combination anomaly degree according to the actual application scenario. The greater the user's need for the precision of improving the heat dissipation optimization effect, the smaller the value of the preset combination anomaly degree. One preset combination anomaly degree is provided, with a preset combination anomaly degree of 1.2.

[0097] For a single LED combination, abnormal LEDs are selected as adjustment LEDs in descending order of temperature at the first reference time, until the n corresponding to that LED combination is reached.

[0098] Specifically, if the abnormal state is that the distribution coefficient of the abnormal LED beads is less than the preset distribution coefficient of the abnormal LED beads or the influence degree of the abnormal heat flow is greater than or equal to the preset influence degree of the abnormal heat flow, then the power of all abnormal LED beads will be adjusted.

[0099] In the adjustment of all abnormal LED power, each abnormal LED is recorded as an adjustable LED.

[0100] It is understandable that the abnormal LED distribution coefficient and the abnormal heat flow influence can effectively reflect the spatial distribution characteristics of abnormal LEDs in the physiotherapy lamp and whether they can be cooled by the existing heat dissipation system. When the abnormal state is that the abnormal LED distribution coefficient is greater than or equal to the preset abnormal LED distribution coefficient and the abnormal heat flow influence is less than the preset abnormal heat flow influence, it means that the abnormal LEDs are dispersed and there is no obvious local heat accumulation. The heat dissipation conditions near the fan are good, so there is no need to adjust all the abnormal LEDs. Therefore, the power of some abnormal LEDs is adjusted.

[0101] When the abnormal state is that the distribution coefficient of the abnormal LED beads is less than the preset distribution coefficient of the abnormal LED beads or the influence degree of the abnormal heat flow is greater than or equal to the preset influence degree of the abnormal heat flow, it indicates that the abnormal LED beads are concentrated in a local heat accumulation area, which is difficult to dissipate or is far from the fan and has poor heat dissipation conditions. Adjusting only some LED beads cannot eliminate the overall thermal risk, and it is necessary to adjust the power of all abnormal LED beads.

[0102] Specifically, the power adjustment amount of each adjustable lamp is determined based on the adjustment coefficient;

[0103] The power adjustment of a single adjustable LED bead is positively correlated with the adjustment coefficient of that LED bead, and the adjustment coefficient is positively correlated with both the adjustment influence coefficient and the abnormal reference value.

[0104] Specifically, for a single adjustable LED in a single LED combination, the adjustable LED is designated as the target LED, and the other abnormal LEDs in the LED combination other than the target LED are designated as reference LEDs. The influence distance value corresponding to the target LED is the average of the reference distance values ​​corresponding to the target LED and each reference LED. It should be noted that if there is no reference LED, the influence distance value corresponding to the target LED is 0.

[0105] The adjustment influence coefficient corresponding to the target LED bead = the influence distance value corresponding to the target LED bead / the average influence distance value corresponding to each adjustment LED bead in the LED bead combination;

[0106] The abnormal reference value corresponding to the target LED bead = the temperature of the target LED bead at the first reference moment / the preset temperature reference value;

[0107] The adjustment coefficient corresponding to the target LED bead = adjustment influence coefficient / average of the adjustment influence coefficients corresponding to each adjustment LED bead in the LED bead combination × third weight coefficient + abnormal reference value / average of the abnormal reference values ​​corresponding to each adjustment LED bead in the LED bead combination × fourth weight coefficient, where both the third weight coefficient and the fourth weight coefficient are 0.5;

[0108] The power adjustment amount of a single adjustable LED bead = the adjustment coefficient of the adjustable LED bead × the power threshold, where the power threshold is 0.03W.

[0109] Specifically, if the total power adjustment is less than the preset total power adjustment, then simultaneous adjustment will be performed.

[0110] Specifically, the total power adjustment is the sum of the power adjustments corresponding to each individual LED.

[0111] The user can determine the value of the preset total power adjustment amount according to the actual application scenario. The greater the user's requirement for the precision of the physiotherapy effect, the smaller the value of the preset total power adjustment amount. A method for determining the value of the preset total power adjustment amount is provided: detect the historical records of the user's simultaneous adjustment, and record the average value of the total power adjustment amount corresponding to the historical records that can meet the user's needs as the preset total power adjustment amount.

[0112] When making simultaneous adjustments, the power of each adjustment LED is reduced simultaneously, and the power reduction of a single adjustment LED is the same as the power adjustment amount corresponding to that adjustment LED.

[0113] Specifically, if the total power adjustment is greater than or equal to the preset total power adjustment, then alternating adjustment will be performed;

[0114] In the alternating adjustment, the adjustment lamps are sorted in descending order of power adjustment amount. The adjustment lamps in odd-numbered order are recorded in the first adjustment set, and the adjustment lamps in even-numbered order are recorded in the second adjustment set. The two adjustment sets alternately reduce the power. The time for a single adjustment set to reduce the power is positively correlated with the abnormal temperature value corresponding to that adjustment set.

[0115] The two adjustment sets alternately reduce power. First, the power reduction adjustment is performed on the first adjustment set. When reducing power for an adjustment set, the power of each adjustment lamp in that adjustment set is reduced at the same time. The power reduction value of a single adjustment lamp is the same as the power adjustment amount corresponding to that adjustment lamp.

[0116] The abnormal temperature value corresponding to a single control set is the average value of the temperature of each control lamp in that control set at the first reference time.

[0117] The time for a single control set to reduce the control is equal to the abnormal temperature value corresponding to that control set / the average of the abnormal temperature values ​​corresponding to the two control sets × the time threshold, where the time threshold is 5 minutes.

[0118] Please see Figure 4 The diagram shown is a module connection diagram of the heat dissipation optimization system for a physiotherapy lamp according to the present invention. The present invention also provides a heat dissipation optimization system for a physiotherapy lamp, comprising:

[0119] Temperature acquisition module, used to acquire the temperature of the lamp beads in the physiotherapy lamp;

[0120] An optimization determination module, which is connected to the temperature acquisition module, is used to determine whether to perform heat dissipation optimization based on the temperature reference value and the heat load increment.

[0121] The heat dissipation optimization module is connected to the temperature acquisition module and the optimization determination module respectively. It is used to increase the fan speed according to the abnormal evaluation value in the heat dissipation optimization, and under the preset abnormal conditions, determine whether to continue to increase the fan speed or perform power adjustment analysis according to the speed comparison value and the curve characterization value of the temperature change curve.

[0122] The adjustment and analysis module is connected to the temperature acquisition module and the heat dissipation optimization module respectively. In the power adjustment analysis, it is used to identify abnormal LEDs based on the degree of temperature anomaly, determine the abnormal state based on the distribution coefficient of abnormal LEDs and the degree of influence of heat flow anomaly, and determine whether to adjust the power of some abnormal LEDs or all abnormal LEDs based on the abnormal state.

[0123] The power adjustment module, which is connected to the adjustment analysis module, is used to determine the adjustment coefficient based on the adjustment influence coefficient and the abnormal reference value, and to determine the power adjustment amount of each adjustment lamp based on the adjustment coefficient, and to determine whether to perform alternating adjustment or simultaneous adjustment based on the total power adjustment amount.

[0124] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0125] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for optimizing heat dissipation in a physiotherapy lamp, characterized in that, include: Determine whether to optimize heat dissipation based on temperature reference values ​​and heat load increments; In the heat dissipation optimization, the fan speed is increased based on the abnormal assessment value. Under preset abnormal conditions, the fan speed is further increased or power adjustment is performed based on the speed comparison value and the curve characterization value of the temperature change curve. In the power regulation analysis, the abnormal state is determined based on the abnormal LED distribution coefficient and the degree of influence of abnormal heat flow, and the power regulation of some abnormal LEDs or all abnormal LEDs is determined based on the abnormal state. The adjustment coefficient is determined based on the adjustment influence coefficient and the abnormal reference value. The power adjustment amount of each adjustment lamp is determined based on the adjustment coefficient. The alternating adjustment or simultaneous adjustment is determined based on the total power adjustment amount. The preset abnormal condition is that the temperature adjustment amount is less than the preset temperature adjustment amount.

2. The heat dissipation optimization method for a physiotherapy lamp according to claim 1, characterized in that, If the temperature reference value is greater than or equal to the preset temperature reference value or the heat load increment is greater than or equal to the preset heat load increment, then heat dissipation optimization is performed.

3. The heat dissipation optimization method for a physiotherapy lamp according to claim 2, characterized in that, The fan speed was increased based on the abnormal assessment value. The increase in fan speed is positively correlated with the abnormal assessment value.

4. The heat dissipation optimization method for a physiotherapy lamp according to claim 3, characterized in that, Based on the speed comparison value and the curve representation value of the temperature change curve, determine whether to continue increasing the fan speed or perform power adjustment analysis, including: If the speed comparison value is less than the preset speed comparison value or the curve characterization value is greater than or equal to the preset curve characterization value, then power regulation analysis is performed; If the speed comparison value is greater than or equal to the preset speed comparison value and the curve representation value is less than the preset curve representation value, then continue to increase the adjustment of the fan speed; The curve characterization value of the temperature change curve is determined based on the slope deviation and the duration of the anomaly.

5. The heat dissipation optimization method for a physiotherapy lamp according to claim 4, characterized in that, If the abnormal state is that the abnormal lamp distribution coefficient is greater than or equal to the preset abnormal lamp distribution coefficient and the heat flow abnormality influence degree is less than the preset heat flow abnormality influence degree, then the power of some abnormal lamps will be adjusted. When adjusting some abnormal LED beads, the combination of LED beads is determined based on the distance reference value, and the number of LED beads to be adjusted for each combination is determined based on the degree of abnormality of the combination.

6. The heat dissipation optimization method for a physiotherapy lamp according to claim 5, characterized in that, If the abnormal state is that the abnormal LED distribution coefficient is less than the preset abnormal LED distribution coefficient or the abnormal heat flow influence degree is greater than or equal to the preset abnormal heat flow influence degree, then the power of all abnormal LEDs will be adjusted.

7. The heat dissipation optimization method for a physiotherapy lamp according to claim 6, characterized in that, The power adjustment amount of each adjustable lamp bead is determined based on the adjustment coefficient; The power adjustment of a single adjustable LED bead is positively correlated with the adjustment coefficient of that LED bead, and the adjustment coefficient is positively correlated with both the adjustment influence coefficient and the abnormal reference value.

8. The heat dissipation optimization method for a physiotherapy lamp according to claim 7, characterized in that, If the total power adjustment is less than the preset total power adjustment, then simultaneous adjustment will be performed.

9. The heat dissipation optimization method for a physiotherapy lamp according to claim 8, characterized in that, If the total power adjustment is greater than or equal to the preset total power adjustment, then alternating adjustment will be performed; In the alternating adjustment, the adjustment lamps are sorted in descending order of power adjustment amount. The adjustment lamps in odd-numbered order are recorded in the first adjustment set, and the adjustment lamps in even-numbered order are recorded in the second adjustment set. The two adjustment sets alternately reduce the power. The time for a single adjustment set to reduce the power is positively correlated with the abnormal temperature value corresponding to that adjustment set.

10. An optimization system for the heat dissipation optimization method for a physiotherapy lamp according to any one of claims 1 to 9, characterized in that, include: Temperature acquisition module, used to acquire the temperature of the lamp beads in the physiotherapy lamp; An optimization determination module, which is connected to the temperature acquisition module, is used to determine whether to perform heat dissipation optimization based on the temperature reference value and the heat load increment. The heat dissipation optimization module is connected to the temperature acquisition module and the optimization determination module respectively. It is used to increase the fan speed according to the abnormal evaluation value in the heat dissipation optimization, and under the preset abnormal conditions, determine whether to continue to increase the fan speed or perform power adjustment analysis according to the speed comparison value and the curve characterization value of the temperature change curve. The adjustment and analysis module is connected to the temperature acquisition module and the heat dissipation optimization module respectively. In the power adjustment analysis, it is used to identify abnormal LEDs based on the degree of temperature anomaly, determine the abnormal state based on the distribution coefficient of abnormal LEDs and the degree of influence of heat flow anomaly, and determine whether to adjust the power of some abnormal LEDs or all abnormal LEDs based on the abnormal state. The power adjustment module, which is connected to the adjustment analysis module, is used to determine the adjustment coefficient based on the adjustment influence coefficient and the abnormal reference value, and to determine the power adjustment amount of each adjustment lamp based on the adjustment coefficient, and to determine whether to perform alternating adjustment or simultaneous adjustment based on the total power adjustment amount.

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