WO2012068916A1

WO2012068916A1 - Control method and device for full-automatic fan

Info

Publication number: WO2012068916A1
Application number: PCT/CN2011/079598
Authority: WO
Inventors: 张鑫; 江涌
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-22
Filing date: 2011-09-14
Publication date: 2012-05-31
Also published as: CN102478004B; CN102478004A

Abstract

Disclosed is a control method and device for a full-automatic fan, the method comprises: obtaining apparatus temperature and the number of users using the apparatus; determining the number of running fans and a fan running mode according to the apparatus temperature, the number of users, a preestablished fan control table and fan running mode table; and controlling the running of the fans according to the determined number of running fans and the fan running mode. The control method and device can control the fans according to the environmental requirement, thereby improving the reliability and correctness of the fan control.

Description

Automatic fan control method and device

The present invention relates to the field of computers, and in particular, to a fully automatic fan control method and apparatus. Background technique

In the related art, the common fan management methods are generally as follows: Method 1: The fan is fully powered on; Method 2: Manually controlling the fan, the operator opens and closes the fan through manual configuration; Mode 3, Temperature Control Fan, set the threshold of one or more manual configurations, and determine the opening and closing of the fan according to the relationship between the ambient temperature and the threshold.

At present, the above several methods have their own advantages and disadvantages. The first method can keep the temperature in the chassis and the ambient temperature consistent, but it is relatively expensive; the second mode is troublesome and depends on labor; the third way is the most intelligent One way, however, this method only controls the opening and closing of the fan through the ambient temperature and the threshold. Since the threshold set by the operator has unreliability and uncertainty, it cannot be accurate according to the current environmental requirements. Controls the opening and closing of the fan. Summary of the invention

In view of this, the present invention provides a fully automatic fan control method and apparatus to solve the problem that the fan control method in the prior art cannot accurately control the opening and closing of the fan according to current environmental requirements.

The invention provides a full-automatic fan control method, comprising:

Get the temperature of the device and the number of users who use the device;

Determine the number of fans running and the fan operating mode based on the device temperature, the number of users, and the pre-defined fan control table and fan operating mode table.

The operation of the fan is controlled according to the determined number of fan runs and the fan operating mode. The invention also provides a fully automatic fan control device, comprising:

a detection module, configured to acquire a device temperature and a number of users who use the device;

a processing module, configured to determine a number of fan operations and a fan operation mode according to a device temperature, a number of users, and a pre-defined fan control table and a fan operation mode table;

The control module is configured to control the operation of the fan according to the determined number of fan runs and the fan operation mode.

The beneficial effects of the present invention are as follows:

The fan control method in the prior art cannot accurately control the fan according to current environmental requirements by determining the opening/closing of the multi-fan and determining the number of open fans according to the ambient temperature and the number of devices used by the device. The problem of opening and closing can control the fan according to environmental requirements and improve the reliability and accuracy of the fan control. DRAWINGS

1 is a flow chart of a method for controlling a fully automatic fan according to an embodiment of the present invention;

2 is a detailed processing flowchart of a method for controlling a fully automatic fan according to an embodiment of the present invention; FIG. 3 is a flowchart of automatic fan operation and automatic switching according to an embodiment of the present invention;

4 is a flow chart of automatic switching of a fan abnormality according to an embodiment of the present invention;

FIG. 5 is a flowchart of a fan alarm detecting process 1 according to an embodiment of the present invention;

6 is a flowchart of a fan alarm detection process 2 according to an embodiment of the present invention;

FIG. 7 is a flowchart of a fan alarm detection process 3 according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a fully automatic fan control device according to an embodiment of the present invention. detailed description

In order to solve the problem that the fan control method in the prior art cannot accurately control the opening and closing of the fan according to current environmental requirements, the present invention provides a fully automatic fan control method and device, which is suitable for embedding for all multi-users. Fan management of the device. Mainly include: According to the hardware provided experimental data to develop the fan control table and fan mode; 2, according to the device temperature and the number of users to control the fan; 3, fan protection: a certain fan in a certain mode for a certain period of time will automatically switch the fan to open; Fan alarm; 5, providing switch control, providing manual and automatic switching. The present invention will be further described in detail below in conjunction with the drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Method embodiment

According to an embodiment of the present invention, a fully automatic fan control method is provided. FIG. 1 is a flowchart of a fully automatic fan control method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

Step 101: Obtain a device temperature and a number of users who use the device.

Step 102: Determine the number of fan operations and the fan operation mode according to the device temperature, the number of users, and the pre-defined fan control table and the fan operation mode table. The fan control table includes: a number of users, a range of device temperatures, and And the correspondence between the number of fan runs; the fan operation mode table includes: a correspondence between the number of fan operations and the fan operation mode.

It should be noted that when formulating the fan control table and the fan operation mode table, it is first necessary to obtain relevant test data, and according to the test result, the distribution and change of the internal temperature of the device under different user usage numbers are determined, and the certain users are determined. The number of fans is turned on in different temperature ranges under the number of uses. In addition, it is necessary to determine the operating mode under different fan numbers, that is, two parameters need to be determined: the number of fans running, and the operating mode under the number of fans running, that is, under the number of fans, different The combination of fan on.

Specifically, the number of fan runs can be considered as a parent class, and there is a subclass of the running mode under each parent class. For example, in the case of a total of 4 fans and 2 fans, the operation mode is a combination of 2 fans and 2 fans in 4 fans, a total of 6 modes. In practical applications, tabulation is performed according to the corresponding fan mode of each fan number, and the fan should be stored in each mode. The running situation, and the corresponding identifier is set.

Step 103: Control the operation of the fan according to the determined number of fan runs and the fan operation mode.

Before acquiring the device temperature and the number of users using the device (before step 101), you need to select the automatic fan mode from the manual fan mode and the automatic fan mode. Preferably, if the user does not make a selection, the default is the automatic fan mode.

That is, the embodiment of the present invention provides two control modes: a manual fan mode and an automatic fan mode. The automatic fan mode can be implemented by a user setting an automatic fan mode, and the manual fan mode is a manual configuration to control the operation of the fan. Its main role is to achieve protection under abnormal conditions.

In the technical solution of the embodiment of the present invention, the fan operation is based on a cyclic task (or thread) timing operation, so that the state of the fan can be detected, thereby implementing mode switching and alarming.

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Specifically, after controlling the operation of the fan according to the determined number of fan operations and the fan operation mode, the fan operation needs to be performed according to the current device temperature, the number of users currently using the device, and the running time of the current fan operation mode. Number and / or fan operation mode to switch (refer to Figure 3 for detailed processing);

In the automatic fan operation and automatic switching process, the number of fans is mainly determined to determine whether the number of fans needs to be switched. If the number of fans is the same, it is determined whether the running time of the current mode exceeds the threshold. If the threshold is exceeded, the other modes under the number of fans are switched. The switching criterion is to select the mode other than the mode and the error flag. Run in the mode with the least total running time.

When it is detected that one or more fans in the current fan operating mode are abnormal, the fan operating mode is automatically switched, and the current fan operating mode is incorrectly identified (refer to FIG. 4 for detailed processing). The switching rule for switching the fan operating mode is: Select the fan operating mode with the least total running time except the current fan operating mode and the fan operating mode with the error flag.

That is, if the system detects one or more fan abnormalities, the automatic fan will automatically switch the mode, select the fan running mode with the least total running time except this mode and the mode with the wrong flag, and then give The previous fan operating mode setting error flag.

In addition, it should be noted that after the new mode is selected in this cycle, regardless of whether the fan can operate normally in this mode, if there is still a fan abnormality when running in the new mode, then the next cycle will be The mode is detected and cycled until the available fan operating mode is obtained; in the event that all fan operating modes are not available, an alarm detection process as will be described below is required to implement the alarm.

If all fan operating modes are unavailable, you need to turn off the automatic fan mode, switch to manual fan mode, and manually turn on all fans to perform unified alarm according to the ID of the fan in abnormal state. In manual fan mode When it is detected that the operation of a certain fan changes from the abnormal state to the normal state, the alarm of the fan is cancelled, and when it is detected that the current automatic mode is switched from the automatic fan mode to the manual fan mode, the automatic fan mode is restored; When the fan in a fan operation mode is detected in the automatic fan mode and changes from the abnormal state to the normal state, the fan alarm is issued and the error flag of the fan operation mode is removed (for detailed processing, refer to Figure 5 and Figure). 6, Figure 7).

Specifically, in order to avoid the pressure of the fan alarm of the network management, the technical solution of the embodiment of the present invention adopts an optimization process: if a certain fan state is abnormal, the mode is switched, and if other modes of the switch are operable, no alarm is generated; Until all modes are unavailable, first turn off the automatic fan function, switch to the manual fan, and turn on all fans, and then perform a unified alarm according to the fan ID.

If the detection of a certain fan is normal after a period of time, the fan alarm is restored, and it is detected whether the manual switch is manual control or automatic control to manual control. If it is automatically switched to manual control, the automatic fan function is restored and all data is cleared. If the fan is running normally in the automatic fan mode, you need to perform the process shown in Figure 7 to detect the fan alarm recovery.

The above technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings. 2 is a detailed processing flowchart of a method for controlling a fully automatic fan according to an embodiment of the present invention. As shown in FIG. 2, the following processing is included:

Step 201: After the device is powered on, according to the needs of the project, the system delays by X seconds;

Step 202: Determine whether the device supports the fan. If the determination is yes, go to step 203. Otherwise, go to step 201.

Step 203, determining whether to select the automatic fan mode or the manual fan mode, if it is the automatic fan mode, step 204 is performed, if it is the manual fan mode, step 207 is performed;

Step 204: Perform an automatic fan operation and an automatic switching process as shown in FIG. 3;

Step 205: Perform an automatic switching process of the fan abnormality as shown in FIG. 4;

Step 206, the alarm detection process (fan alarm detection process 1) shown in Figure 5 is performed, and the process proceeds to step 209;

Step 207: Wait for the operator to configure the fan.

Step 208, after the fan is running, perform the alarm detection process (fan alarm detection process 2) as shown in FIG. 6, and go to step 209;

Step 209: Perform an alarm detection process (fan alarm detection process 3) as shown in FIG. 7. 3 is a flow chart of automatic fan operation and automatic switching according to an embodiment of the present invention. As shown in FIG. 3, the following processing is included:

Step 301: Obtain a current device temperature and a number of users used;

Step 302: Determine, according to the two-dimensional input parameter (device temperature, and the number of users used), the number of fans that should be turned on;

Step 303: Query the number of fans currently running and the current fan running mode. Style

Step 304: Determine whether the number of fans that should be turned on is the same as the number of fans currently running. If the determination is yes, go to step 305. Otherwise, go to step 311.

Step 305, checking a running time of the current fan running mode operation;

Step 306, it is determined whether the single running time in the fan operating mode exceeds the set maximum value, if the determination is yes, then step 307 is performed, otherwise step 310 is performed;

Step 307: Acquire one of the fan modes in the fan mode except the mode and the mode with the error flag, and the running time is the least;

Step 308, open the fan according to the mode;

Step 309, clearing the single running time of the fan running mode before switching, and accumulating the total running time;

Step 310: Continue to execute the fan running mode, and accumulate the single running time of the fan running mode, and accumulate the total running time;

Step 311: Obtain one of the minimum cumulative operation time of the fan mode in the number of fans; Step 312, open the fan according to the mode.

FIG. 4 is a flowchart of automatic switching of a fan abnormality according to an embodiment of the present invention. As shown in FIG. 4, the following processing is included:

Step 401: Obtain the current number of fan operations and the current fan operating mode.

Step 402: Compare the fan opening condition in the current fan running mode with the current fan running condition. If yes, go to step 403. Otherwise, go to step 404. Step 403, continue to run in the current mode.

In step 404, in order to prevent data abnormality, the operation again obtains the current fan running number and the current fan running mode. If they are the same, step 403 is performed; otherwise, step 405 is performed; step 405, the current fan operating mode is marked with a damage flag;

Step 406, querying the number of current fan operations, except for the mode and the mode with error identification. The mode with the lowest overall running time among other available modes;

Step 407, the fan is turned on in this mode.

FIG. 5 is a flowchart of a fan alarm detection process 1 according to an embodiment of the present invention. As shown in FIG. 5, the following processing is included:

Step 501: Obtain the current fan running number and the current fan running mode.

In step 502, it is checked whether all the fan operating modes of the number of fans have an error identifier. If the determination is yes, step 503 is performed; otherwise, step 505 is performed;

Step 503, the number of the fan is marked with an error, indicating that the number of fans cannot be turned on; Step 504, automatically switching to the manual mode, and all fans are turned on by default;

Step 505, continue to run the current fan operating mode.

FIG. 6 is a flowchart of a fan alarm detection process 2 according to an embodiment of the present invention. As shown in FIG. 6, the following processing is included:

Step 601: According to the fan ID polling, compare the current state of the fan with the state that the locally saved fan should be running. If the comparison result is different, poll the fan ID again, and the fan current state and the locally saved fan should be running. Status comparison

Step 602, according to the fan ID polling, to determine whether the fan is abnormal, if the determination is yes, go to step 610, otherwise, go to step 603;

Step 603, obtain a local fan abnormal state table, check whether the fan has been marked with an abnormality, if the determination is yes, go to step 604, otherwise, go to step 609;

Step 604, recovering a fan alarm.

Step 605, polling all the fans for the number of errors, if there is only one error flag, step 606 is performed, if there is no error flag, step 608 is performed;

Step 606: Automatically switch to the manual fan mode, and then resume the automatic fan mode; Step 607, clear the local fan data;

Step 608, manually switching to the manual fan mode, and continuing to run; Step 609, continue to run;

Step 610, the local fan abnormal state table is obtained, and it is determined whether the fan has been marked with an abnormality. If the determination is yes, step 611 is performed; otherwise, step 612 is performed;

Step 611, continue to run;

Step 612, sending a fan abnormality alarm, and marking the local fan status with an abnormality identifier. FIG. 7 is a flowchart of a fan alarm detection process 3 according to an embodiment of the present invention. As shown in FIG. 7, the following processing is included:

Step 701, polling the current state of the fan according to the number of fans, and checking whether the local fan has an error flag, if the fan is running normally and there is an error flag, step 702 is performed, otherwise step 703 is performed;

Step 702, recovering an alarm, and removing a local fan error identifier;

Step 703, continue to run.

It can be seen from the above processing that the embodiment of the present invention considers the manual operation to be turned off by default in terms of ease of use and reliability, and can also select to switch manually, and introduces the ambient temperature and the user's number of two-dimensional input parameters to automatically control the fan, and the fan rotates. The rules table is completely developed by professional fan hardware designers after many environmental tests, so the fan can be automatically and professionally used correctly. It also provides fan protection, and the fan is turned on for a long time, giving timing switching. In the embodiment of the present invention, the alarm detection function is provided to reduce the pressure caused by the fan alarm to the network management system.

Device embodiment

According to an embodiment of the present invention, a fully automatic fan control device is provided, and FIG. 8 is a schematic structural view of a fully automatic fan control device according to an embodiment of the present invention. As shown in FIG. 8, a fully automatic fan control according to an embodiment of the present invention is shown. The device includes: a detection module 80, a processing module 82, and a control module 84. The modules of the embodiments of the present invention are described in detail below. The processing module 82 is configured to determine the number of fan operations and the fan operating mode according to the device temperature, the number of the users, and the fan control table and the fan operating mode table. The fan control table includes: The relationship between the temperature range of the device and the number of fans running. The fan operation mode table includes: the correspondence between the number of fan operations and the fan operation mode.

It should be noted that when formulating the fan control table and the fan operation mode table, it is first necessary to obtain relevant test data, and according to the test result, the distribution and change of the internal temperature of the device under different user usage numbers are determined, thereby determining a certain The number of fans that are turned on in different temperature ranges by the number of users. In addition, it is necessary to determine the operating mode under different fan numbers, that is, two parameters need to be determined: the number of fans running, and the operating mode under the number of fans running, that is, under the number of fans, A combination of different fan openings.

Specifically, the number of fan runs can be considered a parent class, and there is a subclass of the run mode under each parent class. For example, in the case of a total of 4 fans and 2 fans, the operation mode is a combination of 2 fans and 2 fans in 4 fans. There are 6 modes in total. In practical applications, tabulation is performed according to the corresponding fan mode for each fan number, and the storage fan should be operated in each mode, and the corresponding identifier is set.

The control module 84 is configured to control the operation of the fan according to the determined number of fan runs and the fan operation mode.

Preferably, the fully automatic fan control apparatus according to an embodiment of the present invention further includes: front, selecting the automatic fan mode from a manual fan mode and an automatic fan mode. Preferably, if the user does not make a selection, the default is the automatic fan mode.

The embodiments of the present invention provide two control modes: a manual fan mode and an automatic fan mode. The automatic fan mode can be implemented by setting an automatic fan enable by the user. The manual fan mode is a manual configuration of the fan to control the operation of the fan. Is to achieve an abnormal situation Protection.

In the technical solution of the embodiment of the present invention, the fan operation is based on a cyclic task (or thread) timing operation, thereby being capable of detecting the state of the fan, thereby implementing functions such as mode switching and alarming:

The switching module is configured to switch the number of fan operations and/or the fan operation mode according to the current device temperature, the number of users currently using the device, and the running time of the current fan operating mode (for detailed processing, refer to Figure 3); and in the case that one or more fans in the current fan operating mode are detected to be abnormal in operation, the fan operating mode is automatically switched, and the current fan operating mode is incorrectly identified (detailed processing) Refer to Figure 4). The switching rule for switching the fan operating mode is: Select the fan operating mode with the least total running time except the current fan operating mode and the fan operating mode with the wrong flag.

That is to say, in the automatic fan operation and automatic switching process, the switching module mainly performs the number of fans to determine whether the number of fans needs to be switched. If the number of fans is the same, it is determined whether the running time of the current mode exceeds the threshold. If the threshold is exceeded, the other modes under the number of fans are switched. The switching criterion is to select the mode other than the mode and the error flag. Run in the mode with the least total running time.

If the system detects one or more fan abnormalities, the automatic fan will automatically switch the mode, select the fan running mode with the least total running time except the mode and the mode with the wrong flag, and then run the previous fan. The mode sets the error flag.

In addition, it should be noted that after the new mode is selected in this cycle, regardless of whether the fan can operate normally in this mode, if there is still a fan abnormality when running in the new mode, then the next cycle will be The mode is detected and cycled until the available fan operating mode is obtained; in case all fan operating modes are unavailable, the alarm module is required to implement the alarm.

An alarm module, configured to close the self when all fan operating modes are unavailable In the fan mode, switch to the manual fan mode, turn on all fans, and perform unified alarm according to the ID of the fan in the abnormal state; in the manual fan mode, it is detected that the operation of a certain fan changes from abnormal state to normal state. At the same time, the alarm of the fan is cancelled, and when it is detected that the automatic fan mode is automatically switched to the manual fan mode, the automatic fan mode is restored; the automatic fan mode is detected. When the fan in a certain fan operation mode changes from the abnormal state to the normal state, the fan alarm is cancelled and the error flag of the fan operation mode is removed (refer to FIG. 5, FIG. 6, and FIG. 7 for detailed processing).

Specifically, in order to avoid the pressure of the fan alarm of the network management, the technical solution of the embodiment of the present invention adopts an optimization process: if a certain fan state is abnormal, the mode is switched, and if other modes of the switch are operable, no alarm is generated; Until all modes are unavailable, first turn off the automatic fan function, switch to the manual fan, and turn on all the fans, and then according to the ID of the fan, if it is detected after a period of time, it is found that a certain fan is running normally, then restore the The fan alarms and detects whether the switch is manually switched to manual control or automatically to manual control. If it is automatically switched to manual control, the automatic fan function is restored and all data is cleared.

If the fan is running normally in the automatic fan mode, you need to perform the process shown in Figure 7 to detect the fan alarm recovery.

In summary, the technical solution of the embodiment of the present invention solves the problem of determining the opening/closing of the multi-fan and determining the number of open fans according to the ambient temperature and the two-dimensional input of the device user. The fan control method cannot accurately control the opening and closing of the fan according to the current environmental requirements, and can control the fan according to environmental requirements, thereby improving the reliability and accuracy of the fan control.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Claims

Claim

A fully automatic fan control method, characterized in that the method comprises:

Obtaining the temperature of the device and the number of users using the device;

Determining the number of fan operations and the fan operating mode according to the device temperature, the number of users, and a pre-defined fan control table and a fan operating mode table;

The operation of the fan is controlled according to the determined number of fan runs and the fan operating mode.

2. The method according to claim 1, wherein the method further comprises: before acquiring the device temperature and the number of users of the device, the method further comprising:

The automatic fan mode is selected from the manual fan mode and the automatic fan mode.

The method according to claim 1 or 2, wherein after the controlling the operation of the fan according to the determined number of fan runs and the fan operating mode, the method further comprises:

Switching the number of fan runs and/or the fan operating mode according to the current device temperature, the number of users currently using the device, and the running time of the current fan operating mode; when the current fan operating mode is detected In the case where one or more fans of the operation abnormality occur, the fan operation mode is automatically switched, and the current fan operation mode is erroneously identified.

The method according to claim 3, wherein the switching rule for switching the fan operating mode is: selecting a running mode other than a current fan operating mode and a fan operating mode with an error flag. The fan mode of operation with the least amount of time.

The method according to claim 3, wherein, in a case that all fan operating modes are unavailable, the method further includes:

Turning off the automatic fan mode, switching to the manual fan mode, turning on all fans, and performing unified alarm according to the ID of the fan in an abnormal state; When it is detected in the manual fan mode that the operation of the fan changes from the abnormal state to the normal state, the alarm of the fan is cancelled, and it is detected that the automatic fan mode is automatically switched to the manual fan mode. In case, return to the automatic fan mode;

When it is detected in the automatic fan mode that the fan in the fan operating mode changes from the abnormal state to the normal state, the alarm of the fan is cancelled, and the error identifier of the fan operating mode is removed.

6. The method of claim 1 wherein:

The fan control table includes: a correspondence between the number of users, a range of the device temperature, and a number of fan operations;

The fan operation mode table includes: a correspondence between the number of fan operations and the fan operation mode.

A fully automatic fan control device, the device comprising: a processing module, configured to determine a fan according to the device temperature, the number of users, and a pre-defined fan control table and a fan operation mode table The running number and the fan operating mode; the control module is configured to control the running of the fan according to the determined number of fan runs and the fan operating mode.

8. The apparatus according to claim 7, wherein the apparatus further comprises: front, selecting the automatic fan mode from a manual fan mode and an automatic fan mode;

a switching module, configured to switch the number of fan operations and/or the fan operating mode according to a current device temperature, a number of users currently using the device, and a running time of a current fan operating mode; In the event that one or more fans in the current fan operating mode are abnormal in operation, the fan operating mode is automatically switched, and the current fan operating mode is erroneously identified.

9. The device according to claim 8, wherein the device further comprises: The alarm module is configured to: when all fan operating modes are unavailable, turn off the automatic fan mode, switch to the manual fan mode, turn on all fans, and perform unified alarm according to the ID of the fan in an abnormal state; When it is detected in the manual fan mode that the operation of the fan changes from the abnormal state to the normal state, the alarm of the fan is cancelled, and when it is detected that the automatic fan mode is automatically switched to the manual fan mode. And returning to the automatic fan mode; when the fan in the fan running mode is detected to change from the abnormal state to the normal state in the automatic fan mode, the fan alarm is cancelled, and the fan operating mode is removed. The wrong identifier.

10. Apparatus according to claim 9 wherein:

The switching rule for switching the fan operation mode is: selecting a fan operation mode with a minimum total running time except the current fan operation mode and a fan operation mode with an incorrect identifier;