获得CPU风扇转速
目前想要得到电脑CPU风扇的转速。
前提必须用程序实现
请问有什么方法可以得到转速？
有好的思路没有？
求指点，有代码或思路的都可？
在我的机器上的到相应的转速可以单独加分。
[解决办法]
SMBIOS里取到Cooling Device这个结构，应该就有风扇的信息。不过现在的windows（XP以后）已经不能在用户态下映射物理内存了。你还可以试试window提供的WMI，看看有没有风扇速度。
linux下，SMBIOS拿。或者看看dmidecode能不能直接拿到风扇转速。
[解决办法]
http://msdn.microsoft.com/en-us/library/aa394146(VS.85).aspx
http://msdn.microsoft.com/en-us/library/aa387269(v=vs.85).aspx
http://stackoverflow.com/questions/485448/programmatically-access-cpu-fan-on-a-laptop-windows
[解决办法]
http://www.codeproject.com/Articles/17973/How-To-Get-Hardware-Information-CPU-ID-MainBoard-I
[解决办法]
class Win32_Fan : CIM_Fan
{
boolean ActiveCooling;
uint16 Availability;
string Caption;
uint32 ConfigManagerErrorCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
string Description;
uint64 DesiredSpeed;
string DeviceID;
boolean ErrorCleared;
string ErrorDescription;
datetime InstallDate;
uint32 LastErrorCode;
string Name;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
string Status;
uint16 StatusInfo;
string SystemCreationClassName;
string SystemName;
boolean VariableSpeed;
};
DesiredSpeed
Data type: uint64
Access type: Read/write
Currently requested fan speed, defined in revolutions per minute, when a variable speed fan is supported (VariableSpeed is TRUE). The current speed is determined by a sensor (CIM_Tachometer) that is associated with the fan using the CIM_AssociatedSensor relationship. This property is inherited from CIM_Fan.
For more information about using uint64 values in scripts, see Scripting in WMI.
这个不是么？网上看了下，好像有些主板也不支持WMI获取fan的接口。
不行就只有试试SMBIOS了。如果是windows xp系统，应该还可以在用户态下映射物理内存文件。
[解决办法]
DesiredSpeed
Data type: uint64
Access type: Read/write
Currently requested fan speed, defined in revolutions per minute, when a variable speed fan is supported (VariableSpeed is TRUE). The current speed is determined by a sensor (CIM_Tachometer) that is associated with the fan using the CIM_AssociatedSensor relationship. This property is inherited from CIM_Fan.
这句话里的两个连接看下有没有用
[解决办法]
这里有源代码
http://www.oschina.net/code/snippet_222150_14129
[解决办法]
这里有个通过com来获得的CIM_Fan，你可以试着用同样的方法来获得CIM_Tachometer
http://www.dmtf.org/standards/smbios
你可以在这里下到smbios协议
[解决办法]
WMI中有一个Win32_Fan T-Balancer bigNG fan controller or http://www.alphacool.com/product_info.php/info/p999_Alphacool-Heatmaster-II.html? can work bacos
[解决办法]
似乎就是调用API而已
