CANopen protocol-based extended alarm control device and method

Abstract

The invention discloses a CANopen protocol-based extended alarm control device and method. The CANopen protocol-based extended alarm control device comprises a microprocessor, an on-off input module, a turn button switch module, a downloading circuit module, a press key module, an SD data storage module, a CAN transceiver PCA82C250, an audible-visual alarm device, a display module and a power supply module, wherein the on-off input module, the turn button switch module, the downloading circuit module, the press key module, the SD data storage module, the CAN transceiver PCA82C250, the audible-visual alarm device, the display module and the power supply module are connected with the microprocessor; the CAN transceiver PCA82C250 communicates with the outside via a CANopen protocol, and a chip of the microprocessor is an STM32F103VBT6. According to the control method, CANopen protocol-based rapid communication is performed via the CAN transceiver PCA82C250 of master and slave nodes, alarms can be given out after alarm information is timely sent to a specific slave node from a master node, and interconnection performance of a CAN bus can be improved.

Description

technical field [0001] The invention relates to the technical field of extended alarm for ship unmanned cabins, in particular to an extended alarm control device and control method based on the CANopen protocol. Background technique [0002] The ship extension alarm system is the key technology to realize the unmanned cabin, an important part of the ship engine room monitoring and alarm system, and one of the key systems to realize automation and intelligence. Unmanned cabins are now a regular requirement for newbuildings. When no one is on duty, once the operating equipment fails, the ship’s engine room monitoring and alarm system will automatically send alarm signals such as sound and light alarm signals to the ship’s extended alarm system, and the ship’s extended alarm system will promptly and effectively extend the alarm signal to the bridge, public premises, residences of chief engineer and watch officers. [0003] At present, some enterprises and scientific research ...

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Problems solved by technology

[0003] At present, some enterprises and scientific research institutes at home and abroad have developed a variety of extended alarm systems, which are mainly realized based on ordinary single-chip microcomputers and ordinary CAN buses. We understand that there is currently no technology that uniformly regulates the application layer of various extended alarm system products, resulting in low product interconnectivity and reliability

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