Analog quantity fire monitor based on the distributed control of controller area network (CAN) bus

Abstract

The invention relates to an analog quantity fire monitor based on the distributed control of a controller area network (CAN) bus, which comprises a monitor body, a monitor base and a monitor nozzle aswell as a horizontal rotary mechanism, a pitching rotary mechanism, a first microprocessor and a CAN bus; the first microprocessor is connected to the CAN bus; both of the horizontal rotary mechanismand the pitching rotary mechanism comprise a servo motor and a rotary position sensor; and the first microprocessor receives the position signals sent by the rotary position sensor and controls the servo motor according to the position signal, thus ensuring the horizontal rotation of the horizontal rotary mechanism or the pitching rotation of the pitching rotary mechanism. The analog quantity fire monitor adopts the CAN bus communication technology and has simple harness, high reliability, strong interruption-resistance and high transmission efficiency; the firefighter can control the ejecting angle and the ejecting mode only in the operator cabin of the fire engine and the operation is simple and convenient; and synchronously, the analog quantity fire monitor can prevent the firefightersfrom directly exposing in the roaring flame, smoke and dust and poisonous gases and protect the life security of the firefighters.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to an analog fire monitor based on CAN bus distributed control. Background technique [0002] At present, many fire monitors are still manually operated, especially the manual fire monitors equipped on fire trucks, which are mostly installed on the top of the water tank of the fire truck. On the roof of the fire truck, and then operate. During the operation, other firefighters must operate the control panel of the fire truck to adjust the flow, pressure, speed, etc., and several people cooperate with each other to complete the operation. The operation is complicated and the efficiency is low. Manually controlled fire monitors make firefighters have to be directly exposed to flames, smoke, and toxic gases, posing a threat to the lives of firefighters. [0003] Aiming at the above-mentioned problems with manual cannons, many manufacturers have developed electric control fire cannons, w...

AI Technical Summary

Problems solved by technology

This type of electronically controlled fire monitor mostly adopts open-loop control. After the control signal is input, the motor drives the fire monitor to perform horizontal rotation and pitching movements, but the position information of the fire monitor does not get feedback, and it is uncertain whether the fire monitor will turn to the expected position. Difficult to achieve precise location positioning

Secondly, this type of electronically controlled fire monitor still mostly adopts the traditional wiring method, with many wiring harnesses, complex wiring, prone to failure and difficult to troubleshoot and repair, low reliability, poor anti-interference performance, and low transmission efficiency

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