CN108827394B - Automatic device of intaking of storehouse storage environment spectrum - Google Patents
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Abstract
The invention provides an automatic storage environment spectrum intake device, which comprises a temperature and humidity sensor and computer equipment, wherein a processor of the computer equipment realizes the following steps when executing a program: receiving temperature and humidity data fed back by a temperature and humidity sensor in real time and storing the data in a data storage module; reading temperature and humidity data in the data storage module, calculating a coupling accumulated quantity value of temperature and humidity spectrum density along with time according to a time sequence, and storing the coupling accumulated quantity value in the data storage module according to the time sequence; and calculating an environment spectrum, decoupling and outputting accelerated test time. The obtained environmental spectrum is basically consistent with the environmental spectrum of each month and the accumulated value of the natural year, and the result is stable and reliable; the invention can automatically monitor the temperature and the humidity of the environment of the storehouse in real time at any time and any time period, and truly reflect the temperature and humidity values of the storage environment of the storehouse.
Description
Technical Field
The invention relates to an automatic spectrum taking device for a storehouse storage environment.
Background
The environment experienced by the product during use is one of the important reasons for affecting its performance, and for a particular area or space, the environment experienced by the product can be described in terms of a "spectrum", and the intensity of the corresponding environmental factors can be described in terms of "spectral density". Therefore, establishing a product use environment database and compiling a corresponding environment spectrum have important significance for researching the storage life or the use performance of the product. For the storage environment of products stored in a warehouse, the storage environment spectrum needs to be mastered, and the factors of temperature and humidity are the main factors in the storage environment of the products, so the temperature-humidity spectrum is often needed to be compiled. The existing temperature-humidity spectrum is characterized in that 5 ℃ is taken as a temperature interval, 10% is taken as a relative humidity interval, the action time of the temperature-humidity interval is subjected to interactive statistics, the statistics of the action time of the temperature-humidity interval is based on integral point temperature and humidity data, each integral point temperature and humidity data is subjected to statistics according to 1 hour, the ranges of the temperature interval and the humidity interval can be adjusted according to the actual condition of a warehouse, and the adjusted temperature and humidity interval must cover the extreme temperature and humidity value of the area. Because existing environmental spectra have long relied on manual acquisition, reading and programming. The traditional manual acquisition and compiling method is time-consuming, labor-consuming, low in efficiency and easily affected by human errors, so that the accuracy of the acquired environment spectrum is poor, and obviously, the method is not suitable for the development of modern environment tests and observation technologies.
Disclosure of Invention
The invention aims to provide an automatic acquisition device for a storehouse storage environment spectrum, so as to improve the acquisition efficiency and accuracy of the storehouse storage environment spectrum.
The purpose of the invention is realized by adopting the following technical scheme
An automatic intake device for storing environmental spectrums comprises a temperature and humidity sensor, wherein the temperature and humidity sensor is connected with computer equipment, the computer equipment comprises a memory, a processor and a program which is stored on the memory and can run on the processor, and the processor executes the program to realize the following steps:
step 1: receiving temperature and humidity data fed back by a temperature and humidity sensor in real time, and storing the temperature and humidity data in a data storage module;
step 2: reading the temperature and humidity data in the data storage module, and calculating the temperature and humidity spectral density p according to the formula (I) according to the time sequenceiCumulative magnitude W of coupling over time χnCoupling the temperature and humidity to the accumulated quantity WnStoring the data in a data storage module according to time sequence;
in the formula (I), the compound is shown in the specification,
t-absolute temperature of storage environment, Kelvin temperature, K;
h-is relative humidity,%;
r-absolute humidity;
H1、H2、H3……Hnrelative humidity, T, for different periods of time1、T2、T3……TnIs the thermodynamic absolute temperature in different periods, 273.15 is the difference between the degree centigrade and the thermodynamic absolute temperature;
χi-reading time (moment) for temperature and humidity;
i represents subscript, and the corresponding reading time interval times (i is more than 0 and less than or equal to n);
Δχithe time interval length of the reading time (moment) of any temperature and humidity and the last reading time is as follows when reading at equal intervalsi＝Δχ1；
A is a pre-exponential factor, and A is more than or equal to 0.050 and less than or equal to 0.058;
k is a pre-exponential factor, and K is more than or equal to 0.60 and less than or equal to 1;
eta. -storage period, hours;
n-total data sample size (number of continuous monitoring) of environmental factors in the storage period, wherein the total sample size is n ═ η/Δ χi；
Pi-temperature humidity spectral density;
Wn-a physical coupling value of temperature and humidity over time, mathematically meaning a convolution of temperature and humidity over time;
and step 3: according to the formula P ═ WnThe/η calculation generates an environmental spectrum with environmental spectrum density changing with time.
Further, the processor performs decoupling according to the formula (II) and outputs accelerated test time chiS. Namely, the processor reads the temperature and humidity coupling accumulated quantity value W in the data storage modulenLet WnAnd the coupling accumulated quantity value W under the accelerated test conditionSInputting test temperature Ts and test humidity Hs, decoupling and outputting accelerated test time chiS：
Order to
Wn＝Ws(II)
Then
In the formula, H1、H2、H3……HnRelative humidity, T, for different periods of time1、T2、T3……TnIs the thermodynamic absolute temperature in different periods, 273.15 is the difference between the degree centigrade and the thermodynamic absolute temperature; n is the total data sample size (continuous monitoring times) of environmental factors in the storage period, e is a natural constant, A is a pre-index factor, and A is more than or equal to 0.050 and less than or equal to 0.058; chi shapeiReading time (scale) for temperature and humidity; i is subscript, and the corresponding reading time interval times (i is more than 0 and less than or equal to n); delta xiWhen reading at equal intervals, delta chi is the time interval length between any temperature and humidity reading time (moment) and the last reading timei＝Δχ1(ii) a The test temperature Ts and the test humidity Hs are determined by those skilled in the art according to the relative physical properties of the test object, such as 70 ℃ of the tolerant temperature and 80% of the tolerant humidity of the nitrocellulose, the corresponding test temperature is 70 ℃ and the test humidity is 80% input, and the accelerated test time χ is outputS。
Further, the temperature and humidity data in step 1, the calculated temperature and humidity coupling accumulated quantity value WnEnvironment spectrum P and accelerated test time chi output in step 3SAnd displaying through a PC terminal or a human-computer interaction interface.
The temperature and humidity data acquisition frequency of the automatic storage environment spectrum intake device is controlled by the time module, and the data transmission of the automatic storage environment spectrum intake device adopts the standard communication module.
Preferably, each temperature and humidity sensor is provided with at least two channels; more preferably, each temperature and humidity sensor is provided with four temperature channels (four temperature and humidity acquisition points) and four humidity channels (four humidity acquisition points).
Further, the computer device is disposed in a protective frame.
The invention has the beneficial effects that: the device program of the invention adopts a brand-new temperature and humidity environment spectrum algorithm, the temperature and humidity environment spectrum is represented by convolution components (humidity-temperature is an exponential function relation, and temperature-time is a chord function relation). The automatic storage environment spectrum intake device can automatically monitor the temperature and the humidity of the environment of the storehouse in real time at any time and any time period, and truly reflect the temperature and humidity value levels of the storage environment of the storehouse; the automatic storage environment spectrum intake device can automatically, accurately and reliably acquire the storehouse storage environment spectrum, the acquisition efficiency of the environment spectrum is high, the acquired temperature and humidity coupling accumulated quantity value and the environment spectrum in the storage environment can be used as the key basis for developing a parallel storage test or an accelerated storage test, the accelerated storage test time can be quickly obtained through decoupling calculation after the environment spectrum is acquired, the accelerated storage test time is output through a human-computer interaction interface, a large amount of test preparation time is saved for the accelerated storage test, and the accelerated storage test time output by the automatic storage environment spectrum intake device completely meets the requirements of the accelerated test. In addition, the automatic intake device for the storage environment spectrum has the advantages of simple structure and low operation cost.
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FIG. 1 is a schematic view of an automatic intake apparatus for a storage environment profile according to the present invention;
fig. 2 is a schematic flow diagram of the storage environment spectrum automatic intake device of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the scope of the invention, and that modifications and variations that are not essential to the skilled artisan are intended to be included within the scope of the invention.
Example 1
The utility model provides a store automatic device of intaking of environment spectrum, as shown in figure 1, includes temperature sensor, and every temperature and humidity sensor of group is provided with four temperature channel (four ways temperature acquisition point, and every way temperature acquisition point sets up 8 temperature sensor probes), four humidity channel (four ways humidity acquisition point, every way humidity acquisition point sets up 8 humidity sensor probes), every temperature and humidity sensor's temperature acquisition precision: less than or equal to minus or plus (0.5+ T multiplied by 1 percent); humidity acquisition precision: RH is less than or equal to +/-5 percent; temperature acquisition range: -60 to 100 ℃; the temperature and humidity sensor is connected with a computer device, the computer device includes a memory, a processor and a program stored in the memory and capable of running on the processor, and the processor implements the following steps when executing the program, as shown in fig. 2:
step 1 (S101): receiving temperature and humidity data fed back by a temperature and humidity sensor in real time, and storing the temperature and humidity data in a data storage module;
step 2 (S102): reading the temperature and humidity data in the data storage module, and calculating the temperature and humidity spectral density p according to the formula (I) according to the time sequenceiCumulative magnitude W of coupling over time χnCoupling the temperature and humidity to the accumulated quantity WnStoring the data in a data storage module according to time sequence;
step 3 (S103): according to the formula P ═ Wn/η calculating and generating an environment spectrum with the environment spectrum density changing along with time;
step 4 (S104): the processor performs decoupling according to the formula (II) and outputs accelerated test time chiSI.e. the processor reads the accumulated value W of temperature and humidity coupling in the data storage modulenLet WnEqual to the coupling accumulated magnitude Ws under the accelerated test condition, inputting the test temperature Ts and the test humidity Hs, decoupling and outputting the accelerated test time chiS：
Order to
Wn＝Ws
Then
In the formula, H1、H2、H3……HnIs relative of different time periodsHumidity, T1、T2、T3……TnIs the thermodynamic absolute temperature in different periods, 273.15 is the difference between the degree centigrade and the thermodynamic absolute temperature; n is the total data sample size (continuous monitoring times) of environmental factors in the storage period, e is a natural constant, A is a pre-index factor, and A is more than or equal to 0.050 and less than or equal to 0.058; chi shapeiReading time (scale) for temperature and humidityiUsually hours, also minutes; i is subscript, and the corresponding reading time interval times (i is more than 0 and less than or equal to n); delta xiWhen reading at equal intervals, delta chi is the time interval length between any temperature and humidity reading time (moment) and the last reading timei＝Δχ1(ii) a The test temperature Ts and the test humidity Hs are determined by those skilled in the art according to the relative physical properties of the test object, such as 70 ℃ of the tolerant temperature and 80% of the tolerant humidity of the nitrocellulose, the corresponding test temperature is 70 ℃ and the test humidity is 80% input, and the accelerated test time χ is outputS；
Step 5 (S105): in step 1, the temperature and humidity data and the calculated temperature and humidity coupling accumulated quantity value WnEnvironment spectrum P and accelerated test time chi of outputSAnd displaying through a PC terminal or a human-computer interaction interface.
The temperature and humidity data acquisition frequency of the automatic storage environment spectrum intake device is controlled by the time module.
The data transmission of the automatic storage environment spectrum taking device adopts a standard communication module.
Further, the computer equipment is arranged in the aluminum alloy protective frame, and six surfaces of the aluminum alloy protective frame are provided with aluminum alloy protective plates.
The principle of the automatic intake device for the storage environment spectrum comprises the following steps: temperature and humidity data at each moment acquired by the temperature and humidity sensor are utilized, the continuously acquired temperature and humidity and corresponding time data are sequentially transmitted into computer equipment and are calculated according to formulas (I) and (II) of the invention, a corresponding environment spectrum is acquired, the storage and test time is accelerated, and a basis is provided for accelerated storage and test.
For further understanding, the automatic intake device and the use method thereof adopting the storage environment spectrum of the invention take a certain storehouse environment spectrum as a detailed description.
Firstly, the appearance and structural integrity of the automatic storage environment spectrum taking device are detected, a temperature and humidity sensor is corrected, the sensor is arranged at the center of a warehouse, and the height of the automatic storage environment spectrum taking device is adjusted to enable the bottom end of the automatic storage environment spectrum taking device to be spaced from the ground by more than 150 CM.
The storage environment spectrum automatic intake device is started, the storage period is set to be two years, the total data sample size of single environment factors in the storage period is set to be 365 (days) × 24 (hours) × 2 (years) ═ 17520, the sampling frequency of the temperature and humidity data is set to be times/1 hour, and the data are acquired every hour.
The temperature and humidity sensor collects temperature and humidity according to set collection frequency, collected temperature data are shown in a table 1 and collected humidity data are shown in a table 2, and the temperature and humidity data are transmitted to and stored in a data storage module of the computer equipment.
TABLE 1 storehouse temperature data (T/. degree. C.)
TABLE 2 storehouse humidity data (RH:%)
The processor executes the program: reading temperature and humidity data (namely data in tables 1 and 2) in the data storage module, calculating a warehouse temperature and humidity coupling accumulated quantity value according to a formula (I), storing the temperature and humidity coupling accumulated quantity value in the data storage module, and setting the temperature and humidity coupling accumulated quantity value to be W according to a formula PnAnd calculating to generate an environment spectrum with the environment spectrum density changing along with time, storing the environment spectrum in a data storage module, and displaying the calculated temperature and humidity coupling accumulated quantity value and the environment spectrum through a PC (personal computer) end or a human-computer interaction interface, wherein the table 3 shows the temperature and humidity coupling accumulated quantity value and the environment spectrum.
TABLE 3 temperature and humidity spectra of the environment of certain storehouses in the south coast
If the storehouse in south coast is used for storing nitrocellulose, the test temperature Ts (70 ℃) and the test humidity Hs (80%) of the accelerated test can be determined according to the relative physical properties of the temperature and the humidity of a test object (nitrocellulose), then the test temperature Ts (70 ℃) and the test humidity Hs (80%) are input into a computer, clicking to confirm, a memory reads the environmental temperature and humidity spectrum density in a data storage module, and the coupling quantity W of the whole year is gradually accumulated according to the time sequencenPerforming decoupling calculation according to formula (II) and outputting accelerated test time chiS218h, accelerated test time χSAnd displaying through a PC terminal or a human-computer interaction interface. According to the test temperature Ts 70 ℃, the test humidity Hs 80 ℃ and the accelerated test time chiSThe accelerated storage test can be carried out after 218 h.
Claims (4)
1. The utility model provides a store automatic device of intaking of environment spectrum, includes temperature and humidity sensor, temperature and humidity sensor connects computer equipment which characterized in that: the computer device comprises a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program:
step 1: receiving temperature and humidity data fed back by a temperature and humidity sensor in real time, and storing the temperature and humidity data in a data storage module;
step 2: reading the temperature and humidity data in the data storage module, and calculating the temperature and humidity spectral density p according to the formula (I) according to the time sequenceiCumulative magnitude W of coupling over time χnCoupling the temperature and humidity to the accumulated quantity WnStoring the data in a data storage module according to time sequence;
in the formula (I), the compound is shown in the specification,
t-absolute temperature of storage environment, Kelvin temperature, K;
h-is relative humidity,%;
r-absolute humidity;
H1、H2、H3… … is the relative humidity, T, at different periods of time1、T2、T3… … are thermodynamic absolute temperatures for different periods of time;
χi-is the temperature and humidity reading time;
i-the corresponding reading time interval times are more than 0 and i is less than or equal to n;
Δχithe interval length between any temperature and humidity reading time and the last reading time is delta chi when reading at equal intervalsi＝Δχ1；
A is a pre-exponential factor, and A is more than or equal to 0.050 and less than or equal to 0.058;
k is a pre-exponential factor, and K is more than or equal to 0.6 and less than or equal to 1;
eta. -storage period;
n is the total data sample size of environmental factors in the storage period, and the total sample size is n which is η/delta xi；
pi-temperature humidity spectral density;
Wn-a physical coupling value of temperature and humidity over time, mathematically meaning a convolution of temperature and humidity over time;
and step 3: according to the formula P ═ Wnη obtaining environment spectrum with environment spectrum density changing with time;
and 4, step 4: reading temperature and humidity coupling accumulated quantity value W in data storage modulenLet WnAnd the coupling accumulated quantity value W under the accelerated test conditionSInputting test temperature Ts and test humidity Hs, decoupling and outputting accelerated test time chiSNamely:
order to
Wn＝Ws
Then
In the formula, H1、H2、H3……HnRelative humidity, T, for different periods of time1、T2、T3……TnThermodynamic absolute temperatures for different periods of time; n is the total data sample size of environmental factors in the storage period, e is a natural constant, A is a pre-index factor, and A is more than or equal to 0.050 and less than or equal to 0.058; chi shapeiReading time of temperature and humidity; the test temperature Ts and the test humidity Hs are determined according to the relative physical properties of the temperature tolerance and the humidity tolerance of a test object;
and 5: temperature, humidity data, temperature and humidity coupling accumulated quantity WnEnvironmental spectrum P and accelerated test time χSAnd displaying through a human-computer interaction interface.
2. The storage environment profile automatic intake apparatus of claim 1, wherein: each temperature and humidity sensor is at least provided with a temperature acquisition point and a humidity acquisition point.
3. The storage environment profile automatic intake apparatus of claim 1, wherein: each temperature and humidity sensor is provided with four temperature acquisition points and four humidity acquisition points.
4. The storage environment spectrum automatic intake device of claim 1, 2, or 3, wherein: the computer equipment is arranged in the protective frame.
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