A method for determining a bus hard disk box heating control algorithm

Abstract

The application discloses a kind of bus hard disk box heating control algorithm determination method, it is related to hard disk box heating field, by defining the linear relationship t=aT+b between the heating duration of hard disk and the initial temperature in hard disk box, and by selecting multiple sample points between the minimum limit of the environment where hard disk is located and the minimum working temperature limit of hard disk to form coordinate value, the constant value of a and b is calculated to simulate the corresponding function model by linearity, and with the mathematical model as algorithm, it is realized that only the initial temperature value of hard disk box is obtained, corresponding heating time can be obtained according to the above algorithm function, avoid the phenomenon that heating degree is not enough or over-heating, ensure the normal working state of hard disk, strengthen the protection to hard disk, prolong the service life of hard disk.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of hard disk case heating, and particularly relates to a determination method of a bus hard disk case heating control algorithm. BACKGROUND

[0002] At present, the bus monitoring system has been fully covered in the bus industry in China, but due to the large climate difference between the north and the south of China, the minimum temperature in the north city can be as low as about minus forty degrees Celsius, and the hard disk can only be stably powered on under the condition that the entire environment temperature of the hard disk reaches the normal working temperature range, but the extremely low temperature climate in the city is far below the minimum working temperature of the hard disk used for storing the bus monitoring data on the bus, so the hard disk needs to be heated to reach the normal working temperature range before it can start working. Due to the influence of the internal space of the hard disk case, the temperature distribution in the internal space of the hard disk case is uneven during the heating process, and the temperature sensor for temperature monitoring can only monitor the temperature in the vicinity of the sensor and cannot comprehensively reflect the temperature implementation of each point in the space of the hard disk case. Therefore, it is difficult to accurately control the heating process of the hard disk according to the sampling temperature value of the temperature sensor, and the following two potential problems may occur: 1) the heating degree is not enough, and the hard disk is started when the space around the hard disk body does not reach the normal working temperature range, so that the hard disk works unstably or abnormally, thereby causing the monitoring data to be unable to be written into the hard disk; 2) over-heating occurs, and the temperature of some spaces around the hard disk body exceeds the normal working temperature range, so that the hard disk works in an over-temperature state, which seriously affects the service life of the hard disk and even causes irreversible damage to the hard disk. SUMMARY

[0003] In view of the defects and problems in the existing hard disk heating process, such as the uneven temperature distribution in the internal space of the hard disk case, the temperature sensor for temperature monitoring can only monitor the temperature in the vicinity of the sensor and cannot comprehensively reflect the temperature implementation of each point in the space of the hard disk case, and it is difficult to accurately control the heating process of the hard disk according to the sampling temperature value of the temperature sensor, and the following two potential problems may occur: 1) the heating degree is not enough, and the hard disk is started when the space around the hard disk body does not reach the normal working temperature range, so that the hard disk works unstably or abnormally, thereby causing the monitoring data to be unable to be written into the hard disk; 2) over-heating occurs, and the temperature of some spaces around the hard disk body exceeds the normal working temperature range, so that the hard disk works in an over-temperature state, which seriously affects the service life of the hard disk and even causes irreversible damage to the hard disk, the application provides a determination method of a bus hard disk case heating control algorithm.

[0004] The solution adopted by this invention to solve its technical problem is: a method for determining a heating control algorithm for a bus hard disk enclosure, comprising the following steps:

[0005] Step 1: Define the heating time of the hard drive as t, and the initial temperature inside the hard drive enclosure as T, and establish a linear correspondence between t and T, i.e., t = aT + b, where a and b are constants;

[0006] Step 2: Determine the minimum temperature limit T of the environment where the hard drive enclosure is located. emin and the minimum operating temperature limit T of the selected hard drive. omin and in T emin and T omin The coordinate values ​​of t and T corresponding to any temperature point between these two points are A. x (T) x , t x ), to be used as test sample points;

[0007] Step 3: At T emin and T omin Multiple temperature points are evenly selected between the points, and a temperature monitoring device is used to set the selected temperature points accordingly. The heating function of the hard drive enclosure is used to keep track of the time until all temperatures monitored by the temperature monitoring device are greater than T. omin Stop timing when the timer is reached, and record the heating time corresponding to each temperature point.

[0008] Step 4: Arrange the coordinate values ​​of multiple sample points according to the heating time corresponding to each temperature point obtained in Step 3, i.e., A. n (T) n , t n );

[0009] Step 5: Based on the coordinate values ​​of multiple sample points obtained in Step 4, a function curve is linearly fitted, and the values ​​of a and b in t=aT+b can be calculated, thus obtaining the heating control algorithm function of the hard drive enclosure.

[0010] As a preferred embodiment of the present invention, the number of test sample points in step two is multiple, and the more sample points there are, the more accurate the function curve will be.

[0011] As a preferred technical solution of the present invention, in step three, a temperature monitoring instrument is used to simultaneously monitor the temperature of all six sides of the hard disk, and the temperature of five points at the four corners and the center of each side is monitored.

[0012] As a preferred embodiment of the present invention, in step two, the minimum temperature limit of the environment in which the hard drive enclosure is located is determined by a temperature sensor.

[0013] As a preferred technical scheme of the present application, the step five uses MATLAB simulation tool to plot points in the t-T coordinate system.

[0014] As a preferred technical scheme of the present application, after the step five plots the sample points in the coordinate system, the coordinate points are again linearly fitted by MATLAB simulation tool to generate a function curve about t and T.

[0015] Compared with the prior art, the present application has the beneficial effects that: the present application sets a linear relationship mathematical model between the heating time t of the hard disk and the initial temperature T detected by the temperature sensor in the hard disk case, takes the initial temperature of the hard disk case as a judgment condition, obtains a function relationship between the initial temperature and the required heating time, realizes that only the initial temperature value of the hard disk case needs to be obtained, and the corresponding heating time can be obtained according to the above algorithm function, avoids the phenomenon of insufficient heating or over-heating, so as to realize that when the hard disk starts to work, it can be determined that it has reached a normal temperature range, avoids the phenomenon of insufficient heating or over-heating, and at the same time, the risk of monitoring data being unable to be written into the hard disk due to abnormal working state of the hard disk or damage to the hard disk due to over-heating is minimized. The method of the present application can adjust the corresponding heating time under various different environmental temperature conditions, ensure the normal working state of the hard disk, strengthen the protection of the hard disk, prolong the service life of the hard disk, and at the same time, further improve the work efficiency, and has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is the overall flowchart of the present application;

[0017] Fig. 2 is the coordinate plot of the sample points plotted in the t-T coordinate system of the present application;

[0018] Fig. 3 is the coordinate plot of the sample points plotted in the t-T coordinate system of the present application. DETAILED DESCRIPTION

[0019] The present application is further illustrated below in combination with the drawings and examples.

[0020] Please refer to Figs. 1-3 The present application provides a determination method of a bus hard disk case heating control algorithm, which can realize heating the hard disk case for a corresponding time according to different initial temperatures, so as to effectively control the heating effect and ensure that there is no insufficient heating or over-heating.

[0021] Example one:

[0022] The application provides a bus hard disk box heating control algorithm determination method, which comprises the following steps: step one: first, the linear correspondence between the heating duration and the initial temperature of the hard disk box is determined, specifically, the heating duration of the hard disk is defined as t, and the initial temperature in the hard disk box is defined as T, thereby forming the linear correspondence between t and T, that is, t=aT+b, wherein a and b are constants, so that the corresponding heating duration can be calculated according to the linear relationship under different initial temperatures in the hard disk box, thereby effectively controlling the heating effect and avoiding insufficient heating and over-heating; step two: according to the linear relationship determined in step one, the constant values of a and b are calculated by determining the number of sample points, specifically, the temperature information of the environment where the hard disk box is located is sampled by a temperature sensor, and the lowest temperature limit T emin of the environment where the hard disk box is located is obtained by comparison, and the lowest temperature limit T omin at which the selected hard disk box can normally work is determined, and the coordinate values of t and T corresponding to any one temperature point between T emin and T omin , that is, A x (T x , t x ), are selected as test sample points, for example, when the actual temperature is T x , the heating function of the hard disk box is turned on, and the hard disk box needs to be heated for t x before the temperature of the hard disk box can reach the temperature at which the hard disk box can normally work, at this time, the coordinate point A x (T x , t x ) composed of T x and t x is a sample point, and the more the number of selected sample points is, the more accurate the function curve about t and T finally drawn is; step three: according to the sample points described in step two, the coordinate values of the sample points are determined, specifically, first, n temperature points T1, T2, T3, …, T n are selected between T emin and T omin , then the temperature of the hard disk box is monitored by using a temperature patrol instrument at the same time, and each surface includes five monitoring points at the four corners and the center, so that the accuracy of the temperature monitoring of the hard disk box can be maximized, then the hard disk box is placed in a constant temperature box, and the temperature of the constant temperature box is set to the n temperature points selected above, after each temperature probe of the temperature patrol instrument reaches the set temperature point, the heating function of the hard disk box is turned on, and the time is counted at the same time, until all the temperatures monitored by the temperature patrol instrument are greater than T omin , the time counting is stopped, and the corresponding heating duration t1, t2, t3, …, t n; Step four: arranging the coordinate values of the plurality of sample points according to the heating time corresponding to each temperature point obtained in step three, namely A1 (T1, t1), A2 (T2, t2), A3 (T3, t3),..., An (Tn, tn); Step five: dotting the coordinate values of the sample points obtained in step four on the coordinate axis, specifically, dotting the above measured n sample points in the t-T coordinate system by using the MATLAB simulation tool, and finally obtaining a discrete graph as shown in n (T n , t n ); Step five: dotting the coordinate values of the sample points obtained in step four on the coordinate axis, specifically, dotting the above measured n sample points in the t-T coordinate system by using the MATLAB simulation tool, and finally obtaining a discrete graph as shown in Fig. 2 After obtaining the discrete graph, the simulation tool is used again to linearly fit the coordinate points in the coordinate system, and finally a function curve about t and T is generated, according to the linear correspondence relationship described in step one, the constant values of a and b are calculated, and thus the heating control algorithm function of the hard disk box is obtained.

[0023] The present application is used specifically, only the initial temperature value in the hard disk box is detected, and then the corresponding heating time can be obtained through the above algorithm function, so that the temperature range in which the hard disk box can work normally at the ambient temperature is accurately controlled, the present application obtains the linear relationship mathematical model between the heating time t of the hard disk and the initial temperature T detected by the temperature sensor in the hard disk box by collecting a plurality of sample points, and uses the mathematical model as an algorithm, so that only the initial temperature value of the hard disk box needs to be obtained, and the corresponding heating time can be obtained according to the above algorithm function, avoiding the phenomenon of insufficient heating or over-heating, improving the work efficiency, and having strong practicability.

[0024] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for determining a heating control algorithm for a bus hard disk enclosure, characterized in that: Includes the following steps: Step 1: Define the heating time of the hard drive as t, and the initial temperature inside the hard drive enclosure as T, and establish a linear correspondence between t and T, i.e., t = aT + b, where a and b are constants; Step 2: Determine the minimum temperature limit T of the environment where the hard drive enclosure is located. emin and the minimum operating temperature limit T of the selected hard drive. omin and in T emin and T omin The coordinate values ​​of t and T corresponding to any temperature point between these two points are A. x (T) x , t x ), to be used as test sample points; Step 3: At T emin and T omin Multiple temperature points were evenly selected between the points, and a temperature monitoring device was used to simultaneously monitor the temperature of all six sides of the hard drive. On each side, the temperature of five points—the four corners and the center—was also monitored. The hard drive enclosure was then placed in a temperature-controlled chamber, and the chamber temperature was set as described above at T... emin and T omin Multiple temperature points were selected evenly between them; the selected temperature points were then set using a temperature monitoring instrument. emin and T omin Multiple temperature points are monitored. Once each temperature probe of the temperature monitoring instrument reaches the set temperature point, the heating function of the hard drive enclosure is activated, and timing is started simultaneously, until all temperatures monitored by the temperature monitoring instrument are greater than T. omin Stop timing when the timer is reached, and record the heating time corresponding to each temperature point. Step 4: Arrange the coordinate values ​​of multiple sample points according to the heating time corresponding to each temperature point obtained in Step 3, i.e., A. n (T) n , t n ); Step 5: Based on the coordinate values ​​of multiple sample points obtained in Step 4, a function curve is linearly fitted, and the values ​​of a and b in t=aT+b can be calculated, thus obtaining the heating control algorithm function of the hard drive enclosure.

2. The method for determining the heating control algorithm for a hard disk enclosure according to claim 1, characterized in that: In step two, there are multiple test sample points, and the more sample points there are, the more accurate the function curve will be.

3. The method for determining the heating control algorithm for a hard disk enclosure according to claim 1, characterized in that: In step two, a temperature sensor is used to determine the minimum temperature limit of the environment in which the hard drive enclosure is located.

4. The method for determining the heating control algorithm for a hard disk enclosure according to claim 1, characterized in that: In step five, points are plotted in the tT coordinate system using the MATLAB simulation tool.

5. The method for determining the heating control algorithm for a hard disk enclosure according to claim 1, characterized in that: In step five, after plotting the sampling points in the coordinate system, the coordinate points are linearly fitted again using the MATLAB simulation tool to generate function curves about t and T.

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