Abstract: A smart device identity recognition method and system, an electronic device, and a storage medium, are described. The method includes determining a first data randomness degree of inter-packet difference data in a network data packet sent by a smart device to be identified; and determining the identity of said smart device according to a comparison result between the first data randomness degree and a second data randomness degree, and the second data randomness degree is the data randomness degree of inter-packet difference data in a network data packet sent by a identified smart device. According to the smart device identifying method and system, the electronic device, and the storage medium, identity recognition of a smart device can be realized by discrimination of network layer information that is not susceptible to counterfeiting, to ensure that an object served by a cloud server is legitimate and safe.

Abstract: A smart device identity recognition method and system, an electronic device, and a storage medium, are described. The method includes determining a first data randomness degree of inter-packet difference data in a network data packet sent by a smart device to be identified; and determining the identity of said smart device according to a comparison result between the first data randomness degree and a second data randomness degree, and the second data randomness degree is the data randomness degree of inter-packet difference data in a network data packet sent by a identified smart device. According to the smart device identifying method and system, the electronic device, and the storage medium, identity recognition of a smart device can be realized by discrimination of network layer information that is not susceptible to counterfeiting, to ensure that an object served by a cloud server is legitimate and safe.

Abstract: A surface plasmon resonance sensing device that is portable, and having the fiber sensing unit whose resonant wavelength being within the transmission range of a single-mode fiber or a multi-mode fiber, is disclosed. The disclosed sensing device comprises: a light source unit, a fiber sensing unit, an optical sensor, a plurality of fibers, and a computing and displaying unit. The fiber sensing unit includes a trench, a cladding layer, a core layer, a first metallic layer, and a plurality of dielectric thin film layers, wherein the first metallic layer covers the trench, and the plurality of dielectric thin film layers forms on the first metallic layer. The light source provided by the light source unit will become a light signal, after the light passes through the fiber sensing unit. The optical sensor transforms the light signal into a corresponding electric signal, for the usage of the computing and displaying unit.

Abstract: A surface plasmon resonance sensing device that is portable, and having the fiber sensing unit whose resonant wavelength being within the transmission range of a single-mode fiber or a multi-mode fiber, is disclosed. The disclosed sensing device comprises: a light source unit, a fiber sensing unit, an optical sensor, a plurality of fibers, and a computing and displaying unit. The fiber sensing unit includes a trench, a cladding layer, a core layer, a first metallic layer, and a plurality of dielectric thin film layers, wherein the first metallic layer covers the trench, and the plurality of dielectric thin film layers forms on the first metallic layer. The light source provided by the light source unit will become a light signal, after the light passes through the fiber sensing unit. The optical sensor transforms the light signal into a corresponding electric signal, for the usage of the computing and displaying unit.