Water mist fire extinguishing control box for marine engine room

Abstract

The invention discloses a water mist fire extinguishing control box for a marine engine room, and relates to the field of ship fire control, the water mist fire extinguishing control box comprises a digital quantity input module, a digital quantity output module, a button / display module and a CPU module, and the CPU module controls the digital quantity input module, the digital quantity output module and the button / display module by using own main control software in combination with a CAN protocol; a large circuit board is manufactured into a modular form according to functions, the problems that layout, structure, weight and reliability are reduced and the like caused by the large circuit board are solved, and the device is more economical than a PLC module. And through a CAN protocol in the control box, other different models of modules except the primary CPU module can be identified, so that the product universality is improved, and the later upgrading and maintenance of the product are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of ship fire control, and in particular to a ship engine room water mist fire extinguishing control box. Background Art

[0002] There are a lot of oil substances in the main engine, diesel generator set, lubricating oil separator, incinerator, hot water boiler in the ship's engine room. It is a high fire hazard place with oil, electricity and high temperature. Once a fire occurs, the consequences are disastrous. The engine room water mist system is one of the effective fire extinguishing means, and the water mist control box plays a huge role.

[0003] The circuit board used in the water mist fire extinguishing control box used in existing ships integrates all functions. As the protection area increases, the circuit board will also increase, resulting in the control box becoming larger and larger. The water mist fire extinguishing control box used in existing ships uses a PLC module for control, which is expensive.

[0004] To this end, we provide a ship engine room water mist fire extinguishing control box to solve the above problems. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a ship engine room water mist fire extinguishing control box, in which the circuit board is made into modules according to the function, which greatly reduces the price. The main control software of the CPU module controls all modules, and the adaptive matching of the control software of each module is combined to finally realize a control box that is both affordable and highly versatile, which greatly facilitates the maintenance of the water mist control box and has strong practical application value.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts a ship engine room water mist fire extinguishing control box, comprising: a digital quantity input module, a digital quantity output module, a button / display module and a CPU module;

[0007] The CPU module uses its own main control software in combination with the CAN protocol to control the digital input module, the digital output module and the button / display module;

[0008] The CPU module, digital output module, digital input module and button / display module are connected by loop communication;

[0009] The digital quantity output module, the digital quantity input module and the button / display module are arranged in a pluggable manner.

[0010] As a further optimization of the above solution, the CAN protocol communication frame type is an extended frame, the ID is 29 bits, the format is a data frame, the data frame contains 8 bytes, and the CAN baud rate is 125000 nit / s.

[0011] As a further optimization of the above solution, a 24V DC power supply is also included, and the 24V DC power supply provides power to the CPU module, the digital output module, the digital input module and the button / display module.

[0012] As a further optimization of the above solution, the loop communication mode is implemented through an RS485 communication line.

[0013] As a further optimization of the above solution, the digital quantity input module detects external signal input signals, and when there is a signal input, the information is sent to the CPU module through the internal bus.

[0014] As a further optimization of the above solution, the digital output module outputs a passive contact signal or a controllable active signal to control the operation of an external device.

[0015] As a further optimization of the above solution, the button / display module detects the control box button input signal and the control box indication display in real time.

[0016] As a further optimization of the above solution, there is at least one group of any of the digital quantity input module, digital quantity output module and button / display module.

[0017] The ship engine room water mist fire extinguishing control box of the present invention has the following beneficial effects:

[0018] The ship engine room water mist fire extinguishing control box of the present invention manufactures a large circuit board into a modular form according to function, thereby avoiding the problems of layout, structure, weight and reliability reduction caused by the large circuit board, and is more economical than using a PLC module.

[0019] A ship engine room water mist fire extinguishing control box of the present invention can identify modules of different models other than the primary CPU module through the CAN protocol inside the control box, thereby improving product versatility and facilitating later product upgrades and maintenance.

[0020] A ship engine room water mist fire extinguishing control box of the present invention, a single module can be used as an independent component, thereby improving the modularity and flexibility of functional configuration of the ship engine room water mist fire extinguishing control box system, and each functional module can be freely expanded according to the number of protection areas.

[0021] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby, and within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the internal module structure of the ship engine room water mist fire extinguishing control box of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a CPU module used in a water mist fire extinguishing control box in a ship engine room of the present invention;

[0024] Figure 3 This is a structural schematic diagram of a digital quantity input module used in a ship engine room water mist fire extinguishing control box of the present invention;

[0025] Figure 4 This is a structural schematic diagram of a digital quantity output module used in a ship engine room water mist fire extinguishing control box of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a button / display module used in a ship engine room water mist fire extinguishing control box of the present invention;

[0027] Figure 6 It is a structural schematic diagram of multiple buttons / display modules used inside the ship engine room water mist fire extinguishing control box of the present invention when they are connected. DETAILED DESCRIPTION

[0028] Please refer to the instruction manual Figures 1 to 6 The present invention provides a technical solution: a water mist fire extinguishing control box for a ship engine room.

[0029] See also Figure 1 First, configure the required number of digital input modules (DI32-I), digital output modules (DO16-II), and button / display modules (KS-I) according to the number of areas that need to be protected in the ship's engine room. Use the CPU module (CPU-I) to control other modules using the main control software combined with the CAN protocol, and use them in conjunction with each other.

[0030] Among them, the CAN protocol communication frame type is an extended frame, the ID is 29 bits, the format is a data frame, the data frame contains 8 bytes, and the CAN baud rate is 125000nit / s.

[0031] See also Figure 1 , an external stable 24V DC power supply is provided to each module.

[0032] See also Figure 1 All modules are composed of DC power supply and RS485 communication line, and each functional module can be freely expanded according to the number of protection areas.

[0033] See also Figure 1 The CPU module, digital output module, digital input module, and button / display module use loop communication, which can detect a module failure in time without affecting other functions of the control box.

[0034] See also Figure 1 The digital output module, digital input module, and button / display module are highly versatile and can be freely plugged in and out. When replacing the module, the control box can automatically identify modules of different models, which is convenient for later product upgrades and maintenance.

[0035] See also Figures 1 to 3 The digital input module detects external signal input signals. When there is a signal input, the information is sent to the CPU module through the internal bus.

[0036] See also Figure 4 The digital output module can output passive contact signals or controllable active signals, which can control the operation of external devices.

[0037] See also Figures 5 and 6 The button / display module detects the control box button input signal and the control box indication display in real time.

[0038] It should be noted that if Figure 1-Figure 6 The symbols "485A", "485B", "CANL", "GND", "RS485" and the like shown in the figure are all different pins or communication identifiers of the corresponding modules, which are commonly used in the art and will not be described in detail here. They do not affect the realization of the core concept of the present invention.

[0039] It is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ship engine room water mist fire extinguishing control box, characterized in that: include: Digital input module, digital output module, button / display module and CPU module; The CPU module uses its own main control software in combination with the CAN protocol to control the digital input module, the digital output module and the button / display module; The CPU module, digital output module, digital input module and button / display module are connected by loop communication; The digital quantity output module, the digital quantity input module and the button / display module are arranged in a pluggable manner.

2. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: The CAN protocol communication frame type is an extended frame, the ID is 29 bits, the format is a data frame, the data frame contains 8 bytes, and the CAN baud rate is 125000 nit / s.

3. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: It also includes a 24V DC power supply, which provides power to the CPU module, digital output module, digital input module and button / display module.

4. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: The loop communication mode is realized through the RS485 communication line.

5. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: The digital quantity input module detects external signal input signals, and when there is a signal input, the information is sent to the CPU module through the internal bus.

6. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: The digital output module outputs a passive contact signal or a controllable active signal, thereby controlling the operation of an external device.

7. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: The button / display module detects the control box button input signal and the control box indication display in real time.

8. A ship engine room water mist fire extinguishing control box according to claim 1, characterized in that: There is at least one group of any of the digital quantity input module, digital quantity output module and button / display module.

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