阅读说明：本技术 风机温度检测方法、系统、计算机设备及存储介质 (Fan temperature detection method and system, computer equipment and storage medium ) 是由 李小敏 陈胜权 许甘霖 于 2020-12-07 设计创作，主要内容包括：本发明公开了一种风机温度检测方法、系统、计算机设备及存储介质,本申请可以在风机工作过程中实时检测风机各部件的温度,以此对预设采集点进行温度监控检测,在温度高于一定范围的情况下,发出警示信号,以此实时监测风机温度的异常状态,且能让工作人员根据温度异常点,从而可以快速获取故障情况,使其可以根据实际情况决定是否需要停机维修,从而保证风机正常使用。(The invention discloses a fan temperature detection method, a fan temperature detection system, computer equipment and a storage medium, which can detect the temperature of each component of a fan in real time in the working process of the fan, so as to monitor and detect the temperature of a preset acquisition point, send out a warning signal when the temperature is higher than a certain range, so as to monitor the abnormal state of the fan temperature in real time, and enable a worker to quickly acquire the fault condition according to the abnormal temperature point, so that whether the fan needs to be shut down for maintenance or not can be determined according to the actual condition, and the normal use of the fan can be ensured.)

1. A fan temperature detection method is characterized by comprising the following steps:

collecting temperature data of a preset collection point;

carrying out average calculation according to the temperature data of the preset acquisition point in the preset time to obtain the corresponding total temperature average value of the preset acquisition point in the preset time;

comparing the total temperature average value of a preset acquisition point with a preset safety threshold, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold; the preset safety threshold value is set to be 80% of the temperature value of the fan motor winding;

comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value; the preset alarm threshold value is set to be 120% of the temperature value of the fan motor winding;

comparing the total temperature average value of a preset acquisition point with a preset danger threshold, and sending a danger signal and stopping the work of the fan under the condition that the total temperature average value is equal to or higher than the preset danger threshold; the preset danger threshold value is set to be 150% of the temperature value of the fan motor winding.

2. The fan temperature detection method according to claim 1, characterized in that: the preset collection points comprise a plurality of test points;

the collecting of the temperature data of the preset collecting point comprises the following steps:

and collecting temperature data of each test point.

3. The fan temperature detection method according to claim 2, wherein the average calculation is performed according to the temperature data of the preset collection point in the preset time to obtain a total temperature average value corresponding to the preset collection point in the preset time, and the method comprises the following steps:

carrying out average calculation according to the temperature data of each test point in the preset time to obtain the point temperature average value of each test point in the preset time;

and carrying out average calculation according to the point temperature average value of each test point in the preset time to obtain the total temperature average value of the predicted collection point in the preset time.

4. The fan temperature detection method according to claim 2, further comprising:

and displaying and storing the temperature data of each test point, the average point temperature value and the total average temperature value.

5. The fan temperature detection method according to claim 1, characterized in that: the preset safety threshold value is smaller than the preset alarm threshold value, and the preset alarm threshold value is smaller than the preset danger threshold value.

6. A fan temperature detection system, comprising:

the acquisition module is used for acquiring temperature data of a preset acquisition point;

the data calculation module is used for carrying out average calculation according to the temperature data of the preset acquisition points within the preset time to obtain the total temperature average value of the preset acquisition points within the corresponding preset time;

the first data comparison module is used for comparing the total temperature average value of a preset acquisition point with a preset safety threshold value and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold value;

the second data comparison module is used for comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value;

and the third data comparison module is used for comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, and sending a danger signal and stopping the fan under the condition that the total temperature average value is equal to or higher than the preset danger threshold value.

7. The fan temperature detection system of claim 7, wherein: the preset collection points comprise a plurality of test points;

the collection module comprises:

and the acquisition unit is used for acquiring the temperature data of each test point.

8. The fan temperature detection method according to claim 2, further comprising:

and the display storage module is used for displaying and storing the temperature data, the point temperature average value and the total temperature average value of each test point.

9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 6 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.

Technical Field

The invention relates to the field of fans, in particular to a fan temperature detection method, a fan temperature detection system, computer equipment and a storage medium.

Background

When the fan works, the temperature of internal components of the fan needs to be detected, such as the temperature of a motor, so that the fan is prevented from being broken down due to overhigh temperature and affecting the work of the fan.

However, in the prior art, the temperature is mostly determined manually, and then the fan is adjusted according to the feeling, so that in the prior art, no systematic method is designed for detecting the temperature of the internal components of the fan during the operation of the fan, and the operation of the fan is controlled according to the abnormal temperature, and the problems of troublesome adjustment and no intelligence exist

Disclosure of Invention

The invention aims to provide a fan temperature detection method, a fan temperature detection system, computer equipment and a storage medium aiming at the defects of the prior art so as to achieve the purposes of detecting the temperature of a fan motor in real time and finding faults in time according to temperature abnormity.

The technical scheme adopted by the invention is as follows: a fan temperature detection method comprises the following steps:

collecting temperature data of a preset collection point;

carrying out average calculation according to the temperature data of the preset acquisition point in the preset time to obtain the corresponding total temperature average value of the preset acquisition point in the preset time;

comparing the total temperature average value of a preset acquisition point with a preset safety threshold, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold;

comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value;

comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, sending a danger signal under the condition that the total temperature average value is equal to or higher than the preset danger threshold value, and simultaneously stopping the work of the fan.

Furthermore, the preset acquisition points comprise a plurality of test points;

the collecting of the temperature data of the preset collecting point comprises the following steps:

and collecting temperature data of each test point.

Further, the average calculation is performed according to the temperature data of the preset collection point in the preset time to obtain the total temperature average value corresponding to the preset collection point in the preset time, and the average calculation includes:

carrying out average calculation according to the temperature data of each test point in the preset time to obtain the point temperature average value of each test point in the preset time;

and carrying out average calculation according to the point temperature average value of each test point in the preset time to obtain the total temperature average value of the predicted collection point in the preset time.

Further, still include:

and displaying and storing the temperature data of each test point, the average point temperature value and the total average temperature value.

Further, the preset safety threshold is set to be 80% of the temperature value of the fan motor winding; the preset alarm threshold value is set to be 120% of the temperature value of the fan motor winding; the preset danger threshold value is set to be 150% of the temperature value of the fan motor winding.

Further, the preset safety threshold is smaller than the preset alarm threshold, and the preset alarm threshold is smaller than the preset danger threshold.

A fan temperature detection system, comprising:

the acquisition module is used for acquiring temperature data of a preset acquisition point;

the data calculation module is used for carrying out average calculation according to the temperature data of the preset acquisition points within the preset time to obtain the total temperature average value of the preset acquisition points within the corresponding preset time;

the first data comparison module is used for comparing the total temperature average value of a preset acquisition point with a preset safety threshold value and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold value;

the second data comparison module is used for comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value;

and the third data comparison module is used for comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, and sending a danger signal and stopping the fan under the condition that the total temperature average value is equal to or higher than the preset danger threshold value.

Furthermore, the preset acquisition points comprise a plurality of test points;

the collection module comprises:

and the acquisition unit is used for acquiring the temperature data of each test point.

A computer device comprising a memory storing a computer program and a processor implementing the steps of the method described above when executing the computer program.

A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as described above.

The invention has the beneficial effects that: the method comprises the steps of firstly, collecting temperature data of a preset collection point; then, carrying out average calculation according to the temperature data of the preset acquisition point in the preset time so as to obtain the corresponding total temperature average value of the preset acquisition point in the preset time; then comparing the total temperature average value of a preset acquisition point with a preset safety threshold value, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold value; comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value; finally, comparing the total temperature average value of a preset collection point with a preset danger threshold value, sending a danger signal under the condition that the total temperature average value is equal to or higher than the preset danger threshold value, simultaneously stopping the work of the fan, and starting a standby fan; can be in the temperature of each part of fan real-time detection fan through above-mentioned setting in fan working process to this carries out temperature monitoring to predetermineeing the collection point and detects, under the condition that the temperature is higher than certain limit, sends warning signal, with the abnormal state of this real-time supervision fan temperature, and can let the staff according to the temperature abnormal point, thereby can acquire the fault situation fast, make it can decide whether need shut down the maintenance according to actual conditions, thereby guarantee fan normal use.

Drawings

FIG. 1 is a schematic flow chart of a fan noise detection monitoring method according to the present invention;

FIG. 2 is a block diagram of a fan noise detection monitoring system according to the present invention;

fig. 3 is an internal structural diagram of a computer device in an embodiment of the present invention.

10, an acquisition module; 20. a data calculation module; 30. a first data comparison module; 40. a second data comparison module; 50. and a third data comparison module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, the invention provides a fan temperature detection method, which comprises the following steps:

step 100, collecting temperature data of a preset collection point;

step 200, carrying out average calculation according to temperature data of a preset acquisition point in preset time to obtain a total temperature average value corresponding to the preset acquisition point in the preset time;

step 300, comparing the total temperature average value of a preset acquisition point with a preset safety threshold, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold;

step 400, comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value;

step 500, comparing the total temperature average value of the preset collection points with a preset danger threshold, and sending a danger signal and stopping the fan under the condition that the total temperature average value is equal to or higher than the preset danger threshold.

Specifically, the temperature data of a preset acquisition point is firstly acquired, wherein the preset acquisition point can be arranged at the connection position of a coil in the fan motor; then, carrying out average calculation according to the temperature data of the preset acquisition point in the preset time so as to obtain the corresponding total temperature average value of the preset acquisition point in the preset time; then comparing the total temperature average value of a preset collection point with a preset safety threshold value, and sending a safety early warning signal if the total temperature average value is equal to or higher than the preset safety threshold value, such as using yellow light for early warning; comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value, such as using yellow light and peakly sound to carry out early warning simultaneously; finally, comparing the total temperature average value of a preset acquisition point with a preset danger threshold, and sending a danger signal under the condition that the total temperature average value is equal to or higher than the preset danger threshold, such as using yellow light and peaked sound to carry out strong warning at the same time, stopping the fan to work, and starting a standby fan; can be in the temperature of each part of fan real-time detection fan through above-mentioned setting in fan working process to this carries out temperature monitoring to predetermineeing the collection point and detects, is higher than under the unusual condition of certain limit appearance in the temperature, sends the warning signal, with the abnormal condition of this real-time supervision fan temperature, and can let the staff according to the temperature abnormal point, thereby can acquire the fault situation fast, make it can decide whether need shut down the maintenance according to actual conditions, thereby guarantee fan normal use.

This application mainly is through the inside pre-buried thermistor measurement motor temperature of motor, the data of surveying transmit for 5G logistics network through temperature sensor, give the PLC program with the signal transmission by the logistics network, obtain the total temperature average value in the predetermined time through the calculation, compare total temperature average value and the temperature threshold value of settlement in the PLC program, through the operation analysis, when the total temperature average value that detects out surpasss the setting value, then stop the fan operation, and show fault code and fault reason on the display screen through the program, so that operator or monitoring personnel report according to the circumstances, thereby the maintainer of being convenient for finds out the reason of breaking down, the solution problem.

During the operation of the fan, the current operation condition of the fan can be checked at any time, and the current operation condition comprises a flow curve, a pressure curve, a vibration curve, a noise curve, a temperature rise curve and a current curve. Meanwhile, the test data, the operation condition, the fault code, the fault reason, the fault time and other data can be stored by a memory in the intelligent system.

Furthermore, the preset acquisition points comprise a plurality of test points;

the collecting of the temperature data of the preset collecting point comprises the following steps:

and collecting temperature data of each test point.

Specifically, the preset collection point may include a plurality of test points, each test point needs to collect data independently, and since the collected signal is a transient value and changes all the time, temperature data needs to be collected continuously, and collection may be set to be once every 2s, and 10 seconds is one stage.

Further, the average calculation is performed according to the temperature data of the preset collection point in the preset time to obtain the total temperature average value corresponding to the preset collection point in the preset time, and the average calculation includes:

carrying out average calculation according to the temperature data of each test point in the preset time to obtain the point temperature average value of each test point in the preset time;

and carrying out average calculation according to the point temperature average value of each test point in the preset time to obtain the total temperature average value of the predicted collection point in the preset time.

Specifically, the temperature of each test point needs to be statistically calculated, and the average value of the set time is preferably obtained, so that the total temperature average value is calculated, and the value of the total temperature average value is more accurate.

When the transient value of the acquired temperature data exceeds a set value (a monitoring value which can be set by the set value), for example, if the transient value exceeds the set value for 4 times within 1min, the transient value is considered to exceed a critical value, operations such as warning, alarming and the like are required to be performed on the transient value, then, the temperature data values of all test points of preset acquisition points within 1min are subjected to mean value calculation, comparative analysis and mean value taking, then, all the point temperature mean values within 1min are subjected to comparative operation, mean value taking is performed, so that a total temperature mean value is obtained, and then, the total temperature mean value is compared with a corresponding threshold value. When the danger threshold is exceeded, stopping the operation of the fan and starting a standby fan; therefore, the fan is gradually stopped or started to operate according to the use condition, so that the fan works in the process of changing the fan, and the shutdown loss is reduced.

Further, still include:

and displaying and storing the temperature data of each test point, the average point temperature value and the total average temperature value.

Specifically, the data collected by each collection point can be displayed through a display screen, the temperature data of each test point is displayed through an independent window, each independent window displays the current temperature value, when a fault occurs, the current fault code and the fault reason can be displayed through the display screen, and then a worker can shut down the machine according to the actual situation, report the fault, and decide the work of maintenance, maintenance and the like; the running curve of the temperature of the fan can be displayed on the display screen in real time, so that whether an abnormal condition occurs or not can be checked and judged;

when the ventilator runs, the current monitoring data and the real-time running curve of each temperature testing position can be checked through the display screen at any time, and the data in 30 days in history can also be checked; in addition, all data during the operation of the fan can be transmitted to a cloud database through an logistics network, storage, calculation and analysis are carried out at the cloud, analysis results are returned and transmitted to a user, and functions of permanently storing user operation data, checking at any time and the like are guaranteed.

The user can log in the cloud according to the mobile phone APP or the webpage website and the like so as to inquire information.

Further, the preset safety threshold is set to be 80% of the temperature value of the fan motor winding; the preset alarm threshold value is set to be 120% of the temperature value of the fan motor winding; the preset danger threshold value is set to be 150% of the temperature value of the fan motor winding.

Specifically, the preset safety threshold is set to be 80% of the temperature value of the motor winding, the preset alarm threshold is set to be 120% of the temperature value of the motor winding, and the preset danger threshold is set to be 150% of the temperature value of the motor winding, wherein the safety threshold, the alarm threshold, and the danger threshold can be set by a user, and the setting values of different motors can be set differently. The following table can be used to refer to the winding temperature settings for different motors:

relation table of motor insulation grade and winding temperature rise limit value

Further, the preset safety threshold is smaller than the preset alarm threshold, and the preset alarm threshold is smaller than the preset danger threshold.

Specifically, the preset safety threshold, the preset alarm threshold and the preset danger threshold can be specifically set according to actual conditions, the preset safety threshold is smaller than the preset alarm threshold, the preset alarm threshold is smaller than the preset danger threshold, and therefore the preset alarm threshold is sequentially increased to present a plurality of range values, and corresponding warning is carried out under the condition that the total temperature average value is higher than or equal to a certain range value.

It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

As shown in fig. 2, the present application further provides a fan temperature detection system, including:

the acquisition module 10 is used for acquiring temperature data of a preset acquisition point;

the data calculation module 20 is configured to perform average calculation according to temperature data of a preset collection point within a preset time to obtain a total temperature average value of the preset collection point within a corresponding preset time;

the first data comparison module 30 is configured to compare a total temperature average value of a preset collection point with a preset safety threshold, and send a safety early warning signal when the total temperature average value is equal to or higher than the preset safety threshold;

the second data comparison module 40 is used for comparing the total temperature average value of the preset acquisition points with a preset alarm threshold value, and sending an alarm signal when the total temperature average value is equal to or higher than the preset alarm threshold value;

and the third data comparison module 50 is used for comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, and sending a danger signal and stopping the fan from working under the condition that the total temperature average value is equal to or higher than the preset danger threshold value.

Furthermore, the preset acquisition points comprise a plurality of test points;

the collection module comprises:

and the acquisition unit is used for acquiring the temperature data of each test point.

For specific limitations of the fan temperature detection system, reference may be made to the above limitations on the fan temperature detection method, which is not described herein again. All modules of the fan temperature detection system can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 3. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a fan temperature detection method.

Those skilled in the art will appreciate that the architecture shown in fig. 3 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program: collecting temperature data of a preset collection point; carrying out average calculation according to the temperature data of the preset acquisition point in the preset time to obtain the corresponding total temperature average value of the preset acquisition point in the preset time; comparing the total temperature average value of a preset acquisition point with a preset safety threshold, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold; comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value; comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, sending a danger signal under the condition that the total temperature average value is equal to or higher than the preset danger threshold value, and simultaneously stopping the work of the fan.

In one embodiment, the preset collection point comprises a plurality of test points;

the collecting of the temperature data of the preset collecting point comprises the following steps:

and collecting temperature data of each test point.

In one embodiment, the performing an average calculation according to the temperature data of the preset collection point within the preset time to obtain a total temperature average value corresponding to the preset collection point within the preset time includes:

carrying out average calculation according to the temperature data of each test point in the preset time to obtain the point temperature average value of each test point in the preset time;

and carrying out average calculation according to the point temperature average value of each test point in the preset time to obtain the total temperature average value of the predicted collection point in the preset time.

In one embodiment, further comprising:

and displaying and storing the temperature data of each test point, the average point temperature value and the total average temperature value.

In one embodiment, the preset safety threshold is set to 80% of the fan motor winding temperature value; the preset alarm threshold value is set to be 120% of the temperature value of the fan motor winding; the preset danger threshold value is set to be 150% of the temperature value of the fan motor winding.

In one embodiment, the preset safety threshold is less than the preset alarm threshold, and the preset alarm threshold is less than the preset hazard threshold.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: collecting temperature data of a preset collection point; carrying out average calculation according to the temperature data of the preset acquisition point in the preset time to obtain the corresponding total temperature average value of the preset acquisition point in the preset time; comparing the total temperature average value of a preset acquisition point with a preset safety threshold, and sending a safety early warning signal under the condition that the total temperature average value is equal to or higher than the preset safety threshold; comparing the total temperature average value of a preset acquisition point with a preset alarm threshold value, and sending an alarm signal under the condition that the total temperature average value is equal to or higher than the preset alarm threshold value; comparing the total temperature average value of the preset acquisition points with a preset danger threshold value, sending a danger signal under the condition that the total temperature average value is equal to or higher than the preset danger threshold value, and simultaneously stopping the work of the fan.

In one embodiment, the preset collection point comprises a plurality of test points;

the collecting of the temperature data of the preset collecting point comprises the following steps:

and collecting temperature data of each test point.

In one embodiment, the performing an average calculation according to the temperature data of the preset collection point within the preset time to obtain a total temperature average value corresponding to the preset collection point within the preset time includes:

carrying out average calculation according to the temperature data of each test point in the preset time to obtain the point temperature average value of each test point in the preset time;

and carrying out average calculation according to the point temperature average value of each test point in the preset time to obtain the total temperature average value of the predicted collection point in the preset time.

In one embodiment, further comprising:

and displaying and storing the temperature data of each test point, the average point temperature value and the total average temperature value.

In one embodiment, the preset safety threshold is set to 80% of the fan motor winding temperature value; the preset alarm threshold value is set to be 120% of the temperature value of the fan motor winding; the preset danger threshold value is set to be 150% of the temperature value of the fan motor winding.

In one embodiment, the preset safety threshold is less than the preset alarm threshold, and the preset alarm threshold is less than the preset hazard threshold.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above description is only a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and there may be some slight structural changes in the implementation, and if there are various changes or modifications to the present invention without departing from the spirit and scope of the present invention, and within the claims and equivalent technical scope of the present invention, the present invention is also intended to include those changes and modifications.