Temperature control method and device for medical refrigerated container, medical refrigerated container and storage medium

Abstract

The invention discloses a temperature control method and device for a medical refrigerator, the medical refrigerator and a storage medium. The method comprises the steps that the temperature in the medical refrigerating box is obtained, and the temperature difference between the temperature in the box and the set temperature is calculated; when the temperature difference is in the preset regulation and control interval, determining a preset temperature range of the temperature difference, and obtaining temperature difference stagnation time when the temperature difference is in the preset temperature range; determining a temperature control coefficient according to the temperature difference and the temperature difference dead time; and adjusting the rotating speed of the compressor according to the temperature control coefficient. According to the concept that the temperature difference between the temperature in the refrigerator and the set temperature and the temperature difference stagnation time are introduced into the temperature control coefficient, the rotating speed of the compressor is adjusted according to the temperature control coefficient, and the compressor of the medical refrigerator is controlled to operate at the rotating speed. Therefore, the rotating speed of the compressor can be correspondingly adjusted according to the change of the temperature in the refrigerator, the requirement for rapid cooling of the medical refrigerator is met, fluctuation of the temperature in the refrigerator is reduced, and the requirement of the medical refrigerator for the uniformity of the temperature in the refrigerator is met.

Description

Technical Field

[0001] The present invention relates to the field of medical refrigeration technology, and in particular to a temperature control method and device for a medical refrigerator, a medical refrigerator and a storage medium. Background Art

[0002] The industry standard for medical refrigerators has strict requirements on the temperature control inside the refrigerator. Generally, the set temperature of the refrigerator is 5°C. Under the test conditions, the temperature inside the refrigerator is required to reach a stable state. The temperature of each measuring point (the temperature measured by the thermocouples arranged in the box according to the standard requirements) should not deviate from 2 to 8°C, and the temperature inside the box (the average temperature of each measuring point) should not deviate from 3.5 to 6.5°C. At the same time, the temperature fluctuation of the refrigerator (the difference between the maximum and minimum instantaneous temperatures of each measuring point in the box during the test time period) is required to be ≤4.5°C, and the temperature uniformity in the box (the temperature of each measuring point in the box during the test time period, where the difference between the highest measuring point temperature and the temperature setting value is the upper deviation value, and the difference between the minimum measuring point temperature and the temperature setting value is the lower deviation value, and the difference between the upper deviation value and the lower deviation value becomes the temperature uniformity of the refrigerator) is required to be 4°C (+2°C / -2°C).

[0003] Taking into account the particularity of the use of medical refrigerators, the industry standard also stipulates that during the door opening and closing test of the refrigerator, the instantaneous temperature of all measuring points should return to below 8°C within 20 minutes.

[0004] The current medical refrigerators have large temperature fluctuations and poor uniformity during the refrigeration process, making it difficult to control within industry standards.

[0005] With regard to the problems of large temperature fluctuation and poor temperature uniformity in the traditional Chinese medicine refrigerator in the prior art, no effective solution has been proposed yet. Summary of the invention

[0006] The embodiments of the present invention provide a temperature control method and device for a medical refrigerator, a medical refrigerator and a storage medium to solve the problems of large temperature fluctuation and poor temperature uniformity in the medical refrigerator in the prior art.

[0007] In order to solve the above technical problems, the present invention provides a temperature control method for a medical refrigerator, wherein the method comprises: obtaining the temperature inside the medical refrigerator, and calculating the temperature difference between the temperature inside the refrigerator and the set temperature; when the temperature difference is in a preset control range, determining the preset temperature range in which the temperature difference is located, and obtaining the temperature difference stagnation time when the temperature difference is in the preset temperature range; determining a temperature control coefficient according to the temperature difference and the temperature difference stagnation time; and adjusting the compressor speed according to the temperature control coefficient.

[0008] Further, determining a temperature control coefficient according to the temperature difference and the temperature difference stagnation time includes:

[0009] A corresponding first parameter is determined according to a preset temperature range in which the temperature difference is located; a corresponding second parameter is determined according to the temperature difference stagnation time; and a temperature control coefficient is determined according to the first parameter and the second parameter.

[0010] Further, determining the corresponding first parameter according to the preset temperature range in which the temperature difference is located includes:

[0011] According to the correspondence between different preset temperature ranges and the first parameter, the first parameter corresponding to the preset temperature range in which the temperature difference is located is determined; wherein the preset control interval is divided into at least one preset temperature range.

[0012] Further, determining a corresponding second parameter according to the temperature difference stagnation time includes:

[0013] Obtain the changing trend of the temperature in the box; wherein the changing trend includes approaching the set temperature and moving away from the set temperature; determine the corresponding second parameter according to the preset time range of the temperature difference stagnation time and the changing trend of the temperature in the box; wherein different corresponding relationships among the preset time ranges, changing trends and second parameters are preset.

[0014] Further, determining a temperature control coefficient according to the first parameter and the second parameter includes:

[0015] The temperature control coefficient corresponding to the first parameter and the second parameter is determined according to a mapping relationship table; wherein a mapping relationship table of the first parameter, the second parameter and the temperature control coefficient is preset.

[0016] Furthermore, the compressor speed is adjusted according to the temperature control coefficient, which is achieved by the following formula:

[0017] R n =R n-1 *(60+k) / 60;

[0018] Among them, R n is the adjusted compressor speed, R n-1 is the compressor speed before adjustment, and k is the temperature control coefficient.

[0019] Furthermore, after calculating the temperature difference between the temperature inside the box and the set temperature, the method further includes:

[0020] If the temperature difference exceeds the maximum value of the preset control interval, the compressor speed is adjusted to a preset maximum speed; if the temperature difference is less than the minimum value of the preset control interval, the compressor is controlled to stop.

[0021] The present invention also provides a temperature control device for a medical refrigerator, wherein the device comprises:

[0022] A calculation module, used to obtain the temperature inside the medical refrigerator and calculate the temperature difference between the temperature inside the refrigerator and the set temperature;

[0023] A processing module, used for determining the preset temperature range in which the temperature difference is located when the temperature difference is in the preset control interval, and obtaining the temperature difference stagnation time when the temperature difference is in the preset temperature range;

[0024] The adjustment module is used to adjust the compressor speed according to the temperature difference and the temperature difference dead time.

[0025] The present invention also provides a medical refrigerator, wherein the medical refrigerator comprises the above-mentioned temperature control device of the medical refrigerator.

[0026] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program implements the above method when executed by a processor. The present invention also provides an electronic device, which includes: one or more processors; a storage device for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above method.

[0027] By applying the technical solution of the present invention, the temperature inside the medical refrigerator is obtained, and the temperature difference between the temperature inside the refrigerator and the set temperature is calculated. When the temperature difference is in the preset control range, the concept of temperature control coefficient is introduced through the temperature difference and the temperature difference stagnation time. The compressor speed is adjusted according to the temperature control coefficient, and the compressor of the medical refrigerator is controlled to run at the speed. In this way, the speed of the compressor can be adjusted accordingly according to the change of the temperature inside the refrigerator, so as to meet the requirement of rapid cooling of the medical refrigerator, reduce the fluctuation of the temperature inside the refrigerator, and meet the requirement of the medical refrigerator for the uniformity of the temperature inside the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a flow chart of a temperature control method for a medical refrigerator according to an embodiment of the present invention;

[0029] Figure 2 is a flow chart of a method for controlling the temperature inside a medical refrigerator according to an embodiment of the present invention;

[0030] Figure 3 4 is a structural block diagram of a temperature control device for a medical refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0033] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0035] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0036] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] According to an embodiment of the present invention, an embodiment of a temperature control method for a medical refrigerator is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0039] Figure 1 is a flow chart of a temperature control method for a medical refrigerator according to an embodiment of the present invention. Figure 1 As shown, the method comprises the following steps:

[0040] Step S101, obtaining the temperature inside the medical refrigerator and calculating the temperature difference between the temperature inside the refrigerator and the set temperature;

[0041] Step S102, when the temperature difference is within the preset control interval, determining the preset temperature range in which the temperature difference is located, and obtaining the temperature difference stagnation time when the temperature difference is within the preset temperature range;

[0042] Step S103, determining a temperature control coefficient according to the temperature difference and the temperature difference stagnation time;

[0043] Step S104, adjusting the compressor speed according to the temperature control coefficient.

[0044] The above-mentioned preset control interval can be preferably set to -1℃≤ΔT≤2℃, and the temperature difference ΔT=temperature inside the box-set temperature. If the temperature difference exceeds the maximum value of the preset control interval, for example, ΔT>2℃, it means that the temperature inside the box exceeds the set temperature by a large amount and needs to be cooled down quickly, then the compressor speed is adjusted to the preset maximum speed (for example, 4200rpm), so as to achieve rapid cooling of the temperature inside the medical refrigerator. If the temperature difference is less than the minimum value of the preset control interval, for example, ΔT<-1℃, it means that the temperature inside the box is already lower than the set temperature, then the compressor is controlled to stop to prevent the temperature inside the box from being too low, and after the temperature difference returns to the preset control interval, the operation of step S102 is performed again.

[0045] In this embodiment, when the temperature difference between the medical refrigerator and the set temperature is within the preset control range, the temperature difference and the temperature difference stagnation time are used to introduce the concept of temperature control coefficient, and the compressor speed is adjusted according to the temperature control coefficient to control the compressor of the medical refrigerator to operate at the speed. Thus, the compressor speed can be adjusted accordingly according to the change of the temperature inside the refrigerator, so as to meet the requirement of rapid cooling of the medical refrigerator, reduce the fluctuation of the temperature inside the refrigerator, and meet the requirement of the medical refrigerator for the uniformity of the temperature inside the refrigerator.

[0046] In the specific implementation of this embodiment, the concept of temperature control coefficient is introduced through temperature difference and temperature difference stagnation time. Specifically, the corresponding first parameter is determined according to the preset temperature range of the temperature difference; the corresponding second parameter is determined according to the temperature difference stagnation time; and the temperature control coefficient is determined according to the first parameter and the second parameter. Through the above preferred implementation, the temperature control coefficient can be accurately calculated, so that the compressor speed can be adjusted according to the temperature control coefficient, so that the compressor speed can be adjusted accordingly according to the change of the temperature inside the box, avoiding large fluctuations in the temperature inside the medical refrigerator.

[0047] When determining the corresponding first parameter according to the preset temperature range in which the temperature difference is located, it can be achieved through the following preferred implementation: according to the corresponding relationship between different preset temperature ranges and the first parameter, the first parameter corresponding to the preset temperature range in which the temperature difference is located is determined; wherein the above preset control interval is divided into at least one preset temperature range. Based on this, the temperature difference can be quantified as one of the influencing parameters of the compressor speed.

[0048] Table 1 is a schematic diagram of the correspondence between different preset temperature difference ranges and the first parameter. As shown in Table 1, assuming that the preset control range is -1℃≤ΔT≤2℃, the preset control range can be divided into four preset temperature ranges: 1.5℃<ΔT≤2℃, 0.5℃<ΔT≤1.5℃, -0.5℃<ΔT≤0.5℃, -1℃<ΔT≤-0.5℃, and the corresponding first parameters are: A, B, C, and D.

[0049] Table 1

[0050] Condition First parameter Temperature difference ΔT(℃) 1 A 1.5<ΔT≤2 2 B 0.5<ΔT≤1.5 3 C -0.5<ΔT≤0.5 4 D -1<ΔT≤-0.5

[0051] When determining the corresponding second parameter according to the temperature difference stagnation time, it can be achieved through the following preferred implementation: obtaining the changing trend of the temperature in the box; wherein the changing trend includes approaching the set temperature and moving away from the set temperature; determining the corresponding second parameter according to the preset time range of the temperature difference stagnation time and the changing trend of the temperature in the box; wherein different corresponding relationships between preset time ranges, changing trends and second parameters are preset. The temperature difference stagnation time refers to the length of time that the temperature difference between the temperature in the box and the set temperature stays when it falls into the preset temperature range. Based on this, the temperature difference stagnation time can be quantified as one of the influencing parameters of the compressor speed.

[0052] Table 2 is a schematic diagram of the correspondence between different preset time ranges, change trends and second parameters. As shown in Table 2, it is assumed that three preset time ranges are divided: Δt≤3min, 3min<Δt≤6min, 6min<Δt≤10min. However, considering that the change trend of the temperature in the box includes approaching the set temperature and moving away from the set temperature, it is recorded as Δt(+) when approaching the set temperature, and Δt(-) when moving away from the set temperature. Therefore, combined with the above three preset time ranges and change trends, five second parameters are finally corresponding: E, F, G, H, I. Among them, when 6<Δt≤10, the temperature difference stagnation time Δt is longer, and the influence of the change trend can no longer be considered.

[0053] Table 2

[0054] Condition Second parameter Temperature difference stagnation time Δt(min) 1 E Δt(+)≤3 2 F 3<Δt(+)≤6 3 G 6<Δt≤10 4 H 3<Δt(-)≤6 5 I Δt(-)≤3

[0055] After determining the first parameter and the second parameter, determining the temperature control coefficient according to the first parameter and the second parameter can be achieved through the following preferred implementation: determining the temperature control coefficient corresponding to the first parameter and the second parameter according to a mapping relationship table; wherein a mapping relationship table of the first parameter, the second parameter and the temperature control coefficient is preset.

[0056] Considering the operating characteristics of the compressor of the medical refrigerator, the k value can be set within a range of -30 to 30. Table 3 is a mapping relationship table of the first parameter, the second parameter and the temperature control coefficient.

[0057] Table 3

[0058]

[0059] After determining the temperature control coefficient, adjust the compressor speed according to the temperature control coefficient, which can be achieved through the following formula:

[0060] R n =R n-1 *(60+k) / 60; where R n is the adjusted compressor speed, R n-1 is the compressor speed before adjustment, and k is the temperature control coefficient.

[0061] It should be noted that, when determining the temperature control coefficient according to the temperature difference and the temperature difference stagnation time, this embodiment also takes into account that the changing trend of the temperature inside the box will also affect the regulation of the compressor speed. For example, in the above Table 2, the second parameter corresponding to Δt(+)≤3 is E, and the second parameter corresponding to Δt(-)≤3 is I. In Table 3, the k values ​​corresponding to E are all negative numbers (or negative numbers and smaller positive numbers), and the k values ​​corresponding to I are positive numbers and smaller negative numbers (or can also be set to: all positive numbers). When the k value is negative, Rn calculated according to the formula for adjusting the compressor speed according to the temperature control coefficient is less than R n-1When the k value is positive, the Rn calculated by the formula for adjusting the compressor speed according to the temperature control coefficient is greater than R n-1 According to the above analysis, when it is determined that the trend of the temperature change in the box is approaching the set temperature, the final adjustment strategy for the compressor speed in this embodiment is to reduce the compressor speed, that is, at the current compressor speed, the temperature in the box is approaching the set temperature, then the compressor speed can be appropriately reduced to save energy while ensuring that the temperature in the box is stably approaching the set temperature. When it is determined that the trend of the temperature change in the box is away from the set temperature, the final adjustment strategy for the compressor speed is to increase the compressor speed, so as to ensure that the temperature in the box is quickly cooled down and quickly adjusted to the set temperature, avoiding obvious temperature fluctuations.

[0062] When the temperature difference stagnation time is in the range of [10,6), that is, when the second parameter is G, it indicates that the temperature difference exists for a long time, which does not meet the temperature uniformity characteristics of the medical refrigerator. Therefore, it is necessary to quickly adjust the compressor speed and increase the speed as soon as possible to reduce the temperature difference at a faster speed. Therefore, the k value corresponding to G set in Table 3 (regardless of whether the first parameter is A or B or C or D) is positive and the value is large. The larger the temperature difference, for example, the first parameter is A, and the temperature difference stagnation time is longer (the second parameter is G), then the K value corresponding to A and G is set to 30. That is, the larger the temperature difference and the longer the temperature difference stagnation time, the corresponding K value is a positive number and the larger the value. This enables rapid temperature adjustment and rapid reduction of temperature differences.

[0063] According to the data shown in Table 3, it can be determined that when the trend of the temperature change in the box is approaching the set temperature, the k value is negative, and the compressor speed can be appropriately reduced; when the trend of the temperature change in the box is away from the set temperature, the k value is positive, and the compressor speed can be increased to achieve rapid cooling. On this basis, assuming that the second parameter is E, as the first parameter changes from A to D, the corresponding k value (for example, all set to negative values) tends to be smaller and smaller, that is, as the temperature difference becomes smaller and smaller, the compressor speed can be reduced more. Assuming that the second parameter is I, as the first parameter changes from A to D, the corresponding k value tends to be smaller and smaller, that is, as the temperature difference becomes smaller and smaller, the compressor speed increases less, which can slow down the cooling rate, and there is no need to cool too quickly to avoid the temperature in the box being too low.

[0064] Therefore, in order to achieve more accurate temperature control of the medical refrigerator, reduce temperature fluctuations, meet the requirements of the medical refrigerator for temperature uniformity inside the refrigerator, and save energy on this basis and other considerations, when determining the temperature control coefficient according to the temperature difference and the temperature difference stagnation time, this embodiment can preferably finally determine the temperature control coefficient according to the temperature difference, the temperature difference stagnation time and the changing trend of the temperature inside the refrigerator.

[0065] Example 2

[0066] The specific implementation modes of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are only used to illustrate the present invention but are not used to limit the scope of the present invention.

[0067] Figure 2 FIG. 1 is a flow chart of a method for controlling the temperature inside a medical refrigerator according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0068] Step 1: Collect the real-time temperature of each area in the box through the temperature control sensor installed in the box, and then obtain the temperature inside the box.

[0069] Step 2: Based on the obtained temperature inside the box, calculate the measured value of the temperature difference between the temperature inside the box and the set temperature as an input parameter for the temperature control inside the box.

[0070] Step 3: When the measured value of the temperature difference is within the first temperature difference range [-1℃<ΔT≤2℃], calculate the measured value of the temperature difference stagnation time between the temperature inside the box and the set temperature (temperature inside the box - set temperature) as another input parameter for the temperature control inside the box; quantify the measured values ​​of the temperature difference and the temperature difference stagnation time respectively, and obtain the preset threshold value of the corresponding relationship between the temperature difference and the temperature difference stagnation time within the corresponding range [i.e., the temperature control coefficient table of the k value, see the numerical part in the table below, which is the preset threshold value corresponding to the temperature difference and the temperature difference stagnation time within the corresponding range], and then execute the fourth step; when the measured value of the temperature difference is within the second temperature difference range [ΔT>2℃], control the refrigerator compressor to run at its maximum speed [for example, 4200rpm], and then return to the first step; when the measured value of the temperature difference is within the third temperature difference range [ΔT<-1℃], control the refrigerator compressor to stop running, and then return to the first step.

[0071] Step 4: According to the preset threshold of the corresponding relationship between the temperature difference and the temperature difference stagnation time, and in accordance with the set in-box temperature control rules, calculate and output the in-box temperature control coefficient.

[0072] Step 5: Calculate the operating speed of the medical refrigerator compressor according to the temperature control coefficient inside the box, control the medical refrigerator compressor to run at the operating speed, and then return to the first step.

[0073] The following further describes in detail the method for controlling the temperature inside the medical refrigerator. After the refrigerator controller collects real-time temperature data inside the refrigerator through the temperature control sensor, it sends a frequency signal to the compressor controller through the signal output.

[0074] There are three important parameters in the box temperature control algorithm, namely the difference ΔT between the box temperature Tm and the set temperature Ts, the temperature difference stagnation time Δt, and the temperature control coefficient k.

[0075] In cooling mode, ΔT=Tm-Ts. If the temperature inside the box is high, that is, ΔT>2℃, the compressor runs at the highest speed to achieve rapid cooling inside the box. When ΔT<-1℃, the compressor stops working to prevent overcooling inside the box. When -1℃<ΔT≤2℃, the compressor speed is determined by the temperature control coefficient k.

[0076] The temperature difference stagnation time Δt is expressed as the time required for the temperature difference ΔT to enter the temperature control range (assuming it is A) ±0.5℃, and the unit is minutes. When the temperature change is close to the set temperature, it is recorded as (+), and when the temperature change is far from the set temperature, it is recorded as (-).

[0077] It should be noted that after the refrigeration is started for the first time, the temperature difference stagnation time is detected only when the temperature difference is within the preset temperature range, and a temperature control coefficient table is compiled according to the temperature difference and the temperature difference stagnation time. The temperature control coefficient k is obtained by querying the temperature control coefficient table.

[0078] Considering the operating characteristics of the medical refrigerator compressor, the k value range can be set between -30 and 30.

[0079] After calculating the temperature control coefficient k, the method for calculating the operating speed of the medical refrigerator compressor includes:

[0080] The speed range of the medical refrigerator compressor is 1320rpm~4200rpm, and the normal startup speed is 2550rpm. When the medical refrigerator system enters the temperature control range, the compressor controller obtains the temperature control coefficient k according to the temperature control coefficient table, and obtains the working speed of the medical refrigerator compressor through formula conversion. The specific formula is:

[0081] Rn=R n-1 *(60+k) / 60;

[0082] Among them, Rn is the operating speed of the compressor of the medical refrigerator, R n-1 is the speed of the medical refrigerator compressor in the previous speed control cycle, and k is the temperature control coefficient.

[0083] When the calculated speed exceeds the maximum speed, the system will default the current speed to the maximum speed [for example, 4200rpm]; when the calculated speed is lower than the minimum speed [for example, 1320rpm], the system will default the current speed to the minimum speed; the speed control period is 30s.

[0084] In the specific implementation of this embodiment, the temperature inside the box is obtained, and the temperature difference between the temperature inside the box and the set temperature is calculated based on the temperature inside the box. When the temperature difference is within the first temperature difference range, the temperature difference stagnation time is calculated, and the temperature difference and the temperature difference stagnation time are quantified respectively. In combination with the set temperature control rules, the output temperature control coefficient is calculated, and the working speed of the medical refrigerator compressor is calculated based on the temperature control coefficient, and the medical refrigerator compressor is controlled to operate at the working speed. The speed of the compressor is changed accordingly according to a certain trend according to the change of the temperature inside the box, so as to meet the requirement of rapid cooling of the refrigerator, and at the same time reduce the fluctuation of the temperature inside the box, so as to meet the requirement of uniformity of the temperature inside the medical refrigerator. The problem of slow recovery of the temperature inside the medical refrigerator during the opening and closing of the door is solved, and rapid cooling can be achieved during the opening and closing of the door of the medical refrigerator.

[0085] Example 3

[0086] Corresponds to Figure 1 The present embodiment provides a temperature control device for a medical refrigerator, such as Figure 3 The structural block diagram of the temperature control device of the medical refrigerator shown in the figure includes:

[0087] The calculation module 10 is used to obtain the temperature inside the medical refrigerator and calculate the temperature difference between the temperature inside the refrigerator and the set temperature;

[0088] The processing module 20 is connected to the calculation module 10 and is used to determine the preset temperature range of the temperature difference when the temperature difference is in the preset control range, and obtain the temperature difference stagnation time when the temperature difference is in the preset temperature range;

[0089] The adjustment module 30 is connected to the processing module 20 and is used to adjust the compressor speed according to the temperature difference and the temperature difference dead time.

[0090] The temperature control device of the medical refrigerator of this embodiment can realize the temperature control scheme of the medical refrigerator introduced in the above embodiment. When the temperature difference between the medical refrigerator and the set temperature is in the preset control range, the concept of temperature control coefficient is introduced through temperature difference and temperature difference stagnation time, and the compressor speed is adjusted according to the temperature control coefficient to control the compressor of the medical refrigerator to run at the speed. Thus, the speed of the compressor can be adjusted accordingly according to the change of the temperature inside the refrigerator, so as to meet the requirement of rapid cooling of the medical refrigerator, reduce the fluctuation of the temperature inside the refrigerator, and meet the requirement of the medical refrigerator for the uniformity of the temperature inside the refrigerator.

[0091] This embodiment also provides a medical refrigerator, wherein the medical refrigerator includes the temperature control device of the medical refrigerator introduced above.

[0092] Example 4

[0093] This embodiment provides an electronic device, which is used in a temperature control method for a medical refrigerator, and the electronic device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein:

[0094] The memory stores instructions executable by the one processor, the instructions being executed by the at least one processor to enable the at least one processor to:

[0095] Obtain the temperature inside the medical refrigerator, and calculate the temperature difference between the temperature inside the refrigerator and the set temperature; when the temperature difference is in a preset control range, determine the preset temperature range in which the temperature difference is located, and obtain the temperature difference stagnation time when the temperature difference is in the preset temperature range; determine the temperature control coefficient according to the temperature difference and the temperature difference stagnation time; and adjust the compressor speed according to the temperature control coefficient.

[0096] Example 5

[0097] The embodiment of the present invention provides a software, which is used to execute the technical solutions described in the above embodiment and preferred implementation manner.

[0098] An embodiment of the present invention provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the temperature control method for a medical refrigerator in any of the above method embodiments.

[0099] The above-mentioned software is stored in the above-mentioned storage medium, which includes but is not limited to: a CD, a floppy disk, a hard disk, an erasable memory, etc.

[0100] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0101] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0102] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0103] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0104] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0105] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0106] The above product can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0107] The electronic devices of the embodiments of the present invention exist in various forms, including but not limited to:

[0108] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0109] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0110] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys and portable car navigation devices.

[0111] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to the general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, manageability, etc.

[0112] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0113] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature control method for a medical refrigerator, characterized in that: The method comprises: Obtain the temperature inside the medical refrigerator and calculate the temperature difference between the temperature inside the refrigerator and the set temperature; When the temperature difference is within the preset control interval, determining the preset temperature range in which the temperature difference is located, and obtaining the temperature difference stagnation time when the temperature difference is within the preset temperature range; Determine a temperature control coefficient according to the temperature difference and the temperature difference stagnation time; The speed of the compressor is adjusted according to the temperature control coefficient.

2. The method according to claim 1, characterized in that Determining a temperature control coefficient according to the temperature difference and the temperature difference stagnation time includes: Determine a corresponding first parameter according to a preset temperature range within which the temperature difference lies; Determine a corresponding second parameter according to the temperature difference stagnation time; A temperature control coefficient is determined according to the first parameter and the second parameter.

3. The method according to claim 2, characterized in that Determining a corresponding first parameter according to a preset temperature range in which the temperature difference is located includes: According to the correspondence between different preset temperature ranges and the first parameter, the first parameter corresponding to the preset temperature range in which the temperature difference is located is determined; wherein the preset control interval is divided into at least one preset temperature range.

4. The method according to claim 2, characterized in that: Determining a corresponding second parameter according to the temperature difference stagnation time includes: Obtaining a change trend of the temperature in the box; wherein the change trend includes approaching a set temperature and moving away from a set temperature; The corresponding second parameter is determined according to the preset time range of the temperature difference stagnation time and the change trend of the temperature in the box; wherein different corresponding relationships between the preset time ranges, change trends and the second parameter are preset.

5. The method according to claim 2, characterized in that: Determining a temperature control coefficient according to the first parameter and the second parameter includes: The temperature control coefficient corresponding to the first parameter and the second parameter is determined according to a mapping relationship table; wherein a mapping relationship table of the first parameter, the second parameter and the temperature control coefficient is preset.

6. The method according to claim 1, characterized in that The compressor speed is adjusted according to the temperature control coefficient, which is achieved by the following formula: R n =R n-1 *(60+k) / 60; Among them, R n is the adjusted compressor speed, R n-1 is the compressor speed before adjustment, and k is the temperature control coefficient.

7. The method according to claim 1, characterized in that After calculating the temperature difference between the temperature in the box and the set temperature, the method further includes: If the temperature difference exceeds the maximum value of the preset control interval, adjusting the compressor speed to a preset maximum speed; If the temperature difference is smaller than the minimum value of the preset control interval, the compressor is controlled to stop.

8. A temperature control device for a medical refrigerator, characterized in that: The device comprises: A calculation module, used to obtain the temperature inside the medical refrigerator and calculate the temperature difference between the temperature inside the refrigerator and the set temperature; A processing module, used for determining the preset temperature range in which the temperature difference is located when the temperature difference is in the preset control interval, and obtaining the temperature difference stagnation time when the temperature difference is in the preset temperature range; The adjustment module is used to adjust the compressor speed according to the temperature difference and the temperature difference dead time.

9. A medical refrigerator, characterized in that: The medical refrigerator comprises the temperature control device of the medical refrigerator according to claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

11. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 7.

Images