The invention relates to a network
system of a temperature sensor, comprising a
temperature sensing cable and a
temperature monitoring alarm controller connected with the
temperature sensing cable, wherein a center layer of the
temperature sensing cable comprises an earthing lead, a power supply lead, a data line and at least one
chip temperature sensor; and the center layer is sequentially wound with a
tetrafluoroethylene band, a
metal net shielding layer and an
extrusion molding fluoroplastic
flame retardant outer sheath layer in sequence from inside to outside. The cable can be expanded in a linear shape, a tree shape, a star shape and mesh topology by an adapter. The network
system has the characteristics of large protecting range, simple and reasonable structure, low cost, easy production and manufacture, convenient use, high temperature sensing sensitivity, multi-stage temperature alarm, accurate place location, no need of maintenance, repeated use, strong anti-
electromagnetic interference capability, less influence of ambient temperature, expandability at any stage at will and the like. The network
system has wide applicability, and is especially applicable to
temperature monitoring and accident early warning in the severe environment such as dust, a subway, a tunnel, a cable channel and the like, the industrial places such as
petroleum,
petrochemical industry, a grain depot, a
steel mill and the like, and the flammable and explosive dangerous places.