Intelligent three-dimensional garage control system based on CAN bus and control method

Abstract

The invention discloses an intelligent three-dimensional garage control system based on a CAN (Controller Area Network) bus. The intelligent three-dimensional garage control system comprises a main control cabinet, intermediate control boxes, a human-computer interface and an expansion module, wherein as a CAN bus control center, a main control module of the main control cabinet has CAN bus communication and data processing capabilities; the expansion module, the human-computer interface and the plurality of intermediate control boxes are respectively taken as nodes of the CAN bus for accessing into the CAN bus; monitoring data is transmitted by the intermediate control boxes to the CAN bus and can be notified to the human-computer interface after being received and processed by the main control module, and control commands like parking, car taking-out and parking space number input can also be transmitted to the main control module on the bus through the human-computer interface. The intelligent three-dimensional garage control system disclosed by the invention has the benefits that with the adoption of a CAN bus serial communication technology, the data transmission is high in speed and reliable, and the unified management of the system can be realized; through simplifying system wiring, the electrical construction amount is greatly reduced, and meanwhile, the system expansion is facilitated, so that the parking safety in a garage is effectively ensured, and the garage management is facilitated.

Description

technical field [0001] The invention relates to a control system and a control method of a three-dimensional garage, in particular to an intelligent three-dimensional garage control system and a control method based on a CAN bus. Background technique [0002] The PLC-based parallel control method is a relatively traditional control method in the three-dimensional garage, and it is also the most widely used control method at present, and it has continued from the late 1980s to the present. Among the mechanical parking equipment produced by the top ten mechanical parking equipment manufacturers in the domestic market, more than 90% will use PLC. Although the PLC-based control system can basically meet the functional requirements of the current three-dimensional parking garage and is widely used, this control system has problems such as complicated connection, poor flexibility, low reliability, and high cost, mainly in the following areas: [0003] (1) Since the PLC belongs to...

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Problems solved by technology

Although the PLC-based control system can basically meet the functional requirements of the current three-dimensional parking garage and is widely used, this control system has problems such as complicated connection, poor flexibility, low reliability, and high cost, mainly in the following areas:

[0003] (1) Since the PLC belongs to centralized control, the electrical equipment of the system (such as AC contactors, photoelectric sensors, anti-fall devices, etc.) need to be connected to the PLC. There are many terminals and many and long wiring harnesses, which makes the wiring complicated and increases the The difficulty of wiring and the workload of construction also increase the probability of failure

[0004] (2) Each item of PLC needs to be designed repeatedly, has no versatility, is difficult to form modularization, and cannot guarantee that each item is safe and reliable

Insufficient testing requires multiple on-site joint debugging, and the level of programmers directly affects the performance of the control system

[0005] (3) The display and word processing capabilities of PLC products are also relatively poor, and it is difficult to realize network management. Therefore, maintenance of PLC projects is troublesome in the later stage. Modification, the hardware also needs to be adjusted (such as adding or removing or changing the PLC expansion module), and maintenance personnel with considerable electrical expertise are required to be competent, and the versatility is poor, and the maintenance cycle is long

[0006] (4) Due to the poor openness and interoperability of PLC products, the selection of equipment is often limited to a single manufacturer, so there is a certain monopoly, resulting in high costs; at the same time, a large number of complex connections also increase cost, which is extremely unfavorable in the increasingly fierce market competition

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