Smoke detector based on automatic addressing mode and communication method
A technology of automatic addressing and communication methods, applied in the field of detector communication, can solve problems affecting configuration flexibility, achieve strong configurability, reduce the number of wiring, and enhance configurability
Active Publication Date: 2016-12-07
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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Problems solved by technology
That is to say, although the above-mentioned controller and the detector and the detector and the detector are connected by an independent CAN bus, each detector still needs to set an independent address to identify the corresponding detector, which affects the configuration flexibility.
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Embodiment 1
[0027] The invention discloses a smoke detector and a communication method based on an automatic addressing mode. The smoke detector of the invention includes a fire controller and a fire detector. The fire controller manages and monitors each fire detector in real time through its internal bus. It can detect the faults of fire detectors at various locations, fire alarm status and internal network bus status in time. The smoke detector of the present invention uses a CAN communication network inside, wherein the fire controller acts as a network master node in the CAN communication network, and the fire detector acts as a network slave node in the CAN communication network.
[0028] In the smoke detector, the connection between the fire controller and multiple fire detectors is realized through the CAN bus, that is, between the fire detector and the adjacent fire detectors, and between adjacent fire detectors through the independently set CAN bus connection, Data transmission ...
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The invention relates to the technical field of detector communication, more particularly, to a smoke detector based on an automatic addressing mode and a communication method. The smoke detector includes a fire controller FSDCU and n detectors FSD. The fire controller FSDCU and the detectors FSD each are provided with a port CAN#0 and a port CAN#1. The ports CAN#0 and the ports CAN#1 all have the function of receiving and transmitting a frame address. The fire controller FSDCU and the n detectors FSD are connected in sequence. The fire controller FSDCU and the adjacent detectors FSD are connected through independently set CAN buses and the adjacent detectors FSD are connected through independently set CAN buses. Each detector FSD is provided internally with a data transfer module. The received command frame addresses can be subjected to increment or decrement operation through the data transfer modules to distinguish the CAN frame addresses of the detectors. When the detectors receive CAN frames of different addresses, addresses of response frames are also different, the process of address encoding of the detectors is eliminated, and the system configurability is enhanced.
Description
technical field [0001] The invention relates to the technical field of detector communication, in particular to a smoke and fire detector based on an automatic addressing mode and a communication method. Background technique [0002] The high-speed EMU is a highly integrated manned tool with fast movement speed and complex structure. Its electrical equipment is varied and the space is airtight. Once a fire occurs, if it is not discovered in time, it will be difficult to take corresponding measures in time, which will cause greater casualties and property losses. Therefore, it is of great significance to invent a safe and reliable high-speed EMU pyrotechnics online monitoring system. [0003] The number of detectors on the train changes with the demand, and the number of detectors on each vehicle type and car is not fixed, so the pyrotechnic system should be designed as a flexible system that can adjust the number of detectors at will. A type of system where redundancy of ...
Claims
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Login to View More IPC IPC(8): G08B17/10G08B25/01G08B25/00
CPCG08B17/10G08B25/003G08B25/01
Inventor 尹国瑞许相凯高松孙佳胜安普春
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST