Patent Number: 
Section: claims

1. An intelligent air conditioner socket with abnormality alarm comprising a housing, jacks on the surface of the housing and a conductive component arranged within the housing, characterized in that:the housing having a single chip processor, a current detection module, a voltage detection module, an outdoor temperature detection module, an indoor temperature detection module, a display module and a power supply module wherein the current detection module, the voltage detection module, the outdoor temperature detection module, the indoor temperature detection module, the display module and the power supply module are electrically connected with the single chip processor respectively, wherein the power supply module is connected with the display module to power it;the current detection module and the voltage detection module to detect a sampled current and a sampled voltage output to the air conditioner after the power network is connected to the socket respectively, wherein the sampled current and the sampled voltage are fed back to the single-chip processor respectively through an operational amplifier circuit;the outdoor temperature detection module and the indoor temperature detection module to detect outdoor and indoor temperature signals and feeding the signals back to the single-chip processor;the single-chip processor is a control and a processing core, the single-chip processor to conduct voltage abnormality detection, current abnormality detection and temperature abnormality detection respectively using the feedback signals;wherein the voltage abnormality detection comprises comparing a difference between the sampled voltage and a rated voltage with a preset normal voltage difference, if the difference exceeds the preset normal voltage difference, an input voltage of the air conditioner is determined to be overvoltage or undervoltage, and a voltage abnormality alarm signal will be output;the current abnormality detection comprises comparing a difference between the sampled current and a rated current with a preset normal current difference, if the current difference exceeds the preset normal current difference, an input current of the air conditioners determined to be overcurrent or undercurrent, and a current abnormality alarm signal will be output;the temperature abnormality detection comprising determining whether a predetermined temperature reduction magnitude is within the range of an actual temperature reduction magnitude*(−120%, +120%) within a time period T.di-elect cons.T.sub.0−Tm, and if not, an abnormality alarm signal will be output; wherein the actual temperature reduction magnitude=F(Tm)−F(T.sub.0), F(T.sub.0) is an initial indoor temperature, and F(Tm) is the indoor temperature at Tm; and the predetermined temperature reduction magnitude=.SIGMA.T.sub.0.about.Tm [voltage T(v)*current T(a)]*nominal energy efficiency ratio (B)/nominal space area (A)*coefficient of performance R(T)*nominal power factor C, wherein the voltage T(v) and the current T(a) are the sampled voltage and sampled current detected at time T respectively, and the coefficient of performance R(T) is the corresponding coefficient of performance of the outdoor temperature and the indoor temperature at time T; andthe display module to display the current temperature, power and abnormality alarm prompts output by the single-chip processor. 2. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that: the single-chip processor prestores a table of values of coefficient of performance at different outdoor temperatures and indoor temperatures directly or indirectly, and reads the value of the coefficient of performance R(T) corresponding to the outdoor temperature and the indoor temperature at time T form the table. 3. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that: the power supply module is a switching power supply which comprises a rectifier IC, a transformer and an isolation optocoupler. 4. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that: the current detection module uses constantan wire as a current detection device. 5. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that: the display module comprises a display IC and a digital display screen. 6. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that: the outdoor temperature detection module and the indoor temperature detection module use an external thermistor as a temperature sensor to detect the outdoor and indoor temperatures, respectively.