Modem and method of adjusting power

1. A modem, comprising:

a modulator and demodulator circuit;

a temperature detecting module, detecting a real-time-work temperature of an area where the modulator and demodulator circuit is located;

a frequency detecting module, detecting a real-time-work frequency of the modem;

at least one processor;

a storage system; and

one or more programs stored in the storage system and executed by the at least one processor, the one or more programs comprising:

a power offset calculating module, calculating a power offset by summing the real-time-work temperature and the real-time-work frequency, wherein, the real-time-work temperature and the real-time-work frequency are assigned with different weights; and

adjusting power of the modem according to the calculated power offset; and

the power offset calculating module calculating the power offset is based on a pre-stored calculating model which is defined as following: formula (1)

s

j

=

∑

i

⁢

w

ij

⁢

r

i

-

b

j

,

formula (2) t j =f(s j ), formula (3)

f

⁡

(

s

)

=

1

1

+

ⅇ

-

α

⁢

⁢

s

,

formula (4)

x

=

∑

j

⁢

t

j

⁢

w

j

-

c

,

and formula (5)

y

=

1

1

+

ⅇ

-

α

⁢

⁢

x

;

wherein i=1, 2, j=1, 2, 3 . . . n, n is a predetermined integer, r 1 is the real-time-work temperature, r 2 is the real-time-work frequency, w ij , b j , w j , c α are constants, and y is the power offset to calculate.

2. The modem of claim 1 , further comprising a central processing unit with a thermal sensor pin, wherein the temperature detecting module comprises a thermal resistor located in the area, and the thermal resistor is connected to the thermal sensor pin to detect the real-time-work temperature of the modem.

3. The modem of claim 1 , wherein the power offset calculating module calculates the power offset by:

calculating s j according to w ij , b j , and

s

j

=

∑

i

⁢

w

ij

⁢

r

i

-

b

j

;

calculating t j according to s j , t j =f(s j ), and

f

⁡

(

s

)

=

1

1

+

ⅇ

-

α

⁢

⁢

s

,

calculating x according to w j , c, and

x

=

∑

j

⁢

t

j

⁢

w

j

-

c

;

and

calculating y according to x and

y

=

1

1

+

ⅇ

-

α

⁢

⁢

x

.

4. A method of adjusting power of a modem comprising a central processing unit, comprising:

detecting a real-time-work temperature of an area of the modem where a modulator and demodulator circuit is located;

obtaining a real-time-work frequency of the modem;

calculating a power offset by using a pre-stored calculating model to sum the real-time-work temperature and the real-time-work frequency, wherein the real-time-work temperature and the real-time-work frequency are assigned with different weights; and

adjusting the power of the modem according to the calculated power offset; and

the pre-stored calculating model is defined as following: formula (1)

s

j

=

∑

i

⁢

w

ij

⁢

r

i

-

b

j

,

formula (2) t j =f(s j ), a formula (3)

f

⁡

(

s

)

=

1

1

+

ⅇ

-

α

⁢

⁢

s

,

formula (4)

x

=

∑

j

⁢

t

j

⁢

w

j

-

c

,

formula (5)

y

=

1

1

+

ⅇ

-

α

⁢

⁢

x

;

wherein i=1, 2, j=1, 2, 3 . . . n, n is a predetermined integer, r 1 is the real-time-work temperature, r 2 is the real-time-work frequency, w ij , b j , w j , c, α are constants, and y is the power offset to calculate.

5. The method of claim 4 , further comprising:

setting a thermal resistor in the area;

connecting the thermal resistor to a thermal sensor pin of the central processing unit of the modem in series; and

detecting the real-time-work temperature of the modem by the thermal resistor.

6. The method of claim 4 , further comprising:

calculating s j according to w ij , b j , and

s

j

=

∑

i

⁢

w

ij

⁢

r

i

-

b

j

;

calculating t j according to s j , t j =f(s j ), and

f

⁡

(

s

)

=

1

1

+

ⅇ

-

α

⁢

⁢

s

;

calculating x according to w j , c, and

x

=

∑

j

⁢

t

j

⁢

w

j

-

c

;

and

calculating y according to x and

y

=

1

1

+

ⅇ

-

α

⁢

⁢

x

.