Abstract: A non-invasive time domain reflection probe calibration method includes: using different volume ratio of ethanol and deionized water mixed solution to calculate a test target's medium weight coefficient and waveguide length of the non-invasive time domain reflection probes; using different concentrations of NaCl solutions to calibrate a waveguide geometric dimensioning of the non-invasive time domain reflection probes; preparing compacted soil samples with known different moisture contents and densities, and calibrating a correlation parameter of compacted soil samples' dielectric constant and conductivity with moisture content and density. The method not only determines the sensitivity of the test target medium of the non-invasive time domain reflection probes, but also obtains the waveguide length and geometric dimensioning of the probe, and realizes an accurate test of moisture content and density of the soil.

Abstract: A wireless switch assembly, including: a wireless switch having a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The wireless assembly can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A wireless switch assembly, comprising: a wireless switch comprising a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The present invention can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A wireless switch assembly, comprising: a wireless switch comprising a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The present invention can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A wireless switch assembly, including: a wireless switch having a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The wireless assembly can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A wireless switch assembly, comprising: a wireless switch comprising a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The present invention can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A semiconductor DC transformer is provided. The semiconductor DC transformer comprises: a plurality of semiconductor electricity-to-light conversion structures connected in series for converting input electric energy into optical energy; and a plurality of semiconductor light-to-electricity conversion structures connected in series for converting input optical energy into electric energy, in which a number of the semiconductor electricity-to-light conversion structures is different from that of the semiconductor light-to-electricity conversion structures so as to realize a DC transformation, and a working light spectrum of the semiconductor electricity-to-light conversion structures is matched with that of the semiconductor light-to-electricity conversion structures.

Abstract: A wireless switch assembly, comprising: a wireless switch comprising a control switch; a wireless transmitter connected to the control switch and transmitting a corresponding control signal according to the instruction of the control switch; a first identification card pluggably mounted in the wireless switch and connected to the wireless transmitter; a wireless receiver connected to a controller of a controlled piece and communicating with the wireless switch through radio frequency signal or optical signal. The wireless receiver has a second identification card pluggably mounted therein. The present invention can achieve a remote control by a low power consumption wireless transceiver module and matches the wireless switch to the wireless receiver via the identification cards, thus eliminating the need for complicated control wiring, therefore greatly reducing the complexity of wiring, saving electric wires and cables, and reducing cost.

Abstract: A semiconductor DC transformer is provided. The semiconductor DC transformer comprises: a plurality of semiconductor electricity-to-light conversion structures connected in series for converting input electric energy into optical energy; and a plurality of semiconductor light-to-electricity conversion structures connected in series for converting input optical energy into electric energy, in which a number of the semiconductor electricity-to-light conversion structures is different from that of the semiconductor light-to-electricity conversion structures so as to realize a DC transformation, and a working light spectrum of the semiconductor electricity-to-light conversion structures is matched with that of the semiconductor light-to-electricity conversion structures.