LonWorks bus on-off device and method

The invention relates to a LonWorks bus on-off device. The device comprises a LonWorks bus monitoring module, a LonWorks bus control module, a LonWorks bus and serial port conversion module, a single-chip microcomputer and a communication module. The LonWorks bus and serial port conversion module is used for converting the LonWorks bus monitoring data into serial port monitoring data; the LonWorksbus and serial port conversion module converts the corrected sending instruction sent by the single-chip microcomputer into LonWorks bus instruction data; and the LonWorks bus control module is usedfor controlling the communication conditions of the LonWorks bus and serial port conversion module, the electronic brake valve and the integrated processing unit according to the LonWorks bus instruction data. The brake information can be accurately acquired and forwarded, timely and accurate output of control is ensured and the intelligence and the safety of the air brake system are improved. 本发明涉及一种LonWorks总线通断装置。所述装置包括：