Extended alarm device, equipment, method and system

Abstract

The invention discloses an extended alarm device, equipment, method and system, and belongs to the technical field of extended alarm devices, and the extended alarm device comprises a first module, a second module, a CAN bus, a third module and a fourth module. The first module is used for receiving a first signal and switching the first signal into a second signal; the second module is connected with the first module, and the second module is used for processing the second signal to obtain first information and a control instruction; the second module is connected with external equipment through the CAN bus, and the CAN bus is isolated from a second signal through the second module; the third module is connected with the second module through a CAN bus and receives the first information and the control instruction, and the third module is connected with external equipment through the CAN bus; and the fourth module is connected with the third module, receives the first information and the control instruction, displays the first information and gives an alarm according to the control instruction. The technical problem that miniaturization, generalization, signal processing and display of equipment cannot be met is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of extended alarm devices, and specifically relates to an extended alarm device, equipment, method and system. Background Art

[0002] At present, as the functions of ships become more and more, more and more equipment is required on ships, so more equipment needs to be monitored, that is, more signals need to be processed and displayed by the ship's extended alarm devices. However, the existing ship's extended alarm devices cannot meet the processing and display of many signals. Summary of the invention

[0003] Purpose of the invention: This application develops an extended alarm device, aiming to solve the technical problems that cannot meet many signal processing and display requirements.

[0004] Technical solution: In a first aspect, an embodiment of the present application provides an extended alarm device, comprising:

[0005] A first module, configured to receive a first signal and switch the first signal into a second signal;

[0006] A second module is bidirectionally connected to the first module, and the second module is used to perform signal logic processing on the second signal to obtain first information and control instructions;

[0007] A CAN bus connects the second module to an external device, and the CAN bus is isolated from the second signal through the second module;

[0008] a third module, connected to the second module via the CAN bus and receiving the first information and the control instruction, and the third module is connected to the external device via the CAN bus;

[0009] The fourth module is connected to the third module and receives the first information and the control instruction. The fourth module displays the first information and issues an alarm according to the control instruction.

[0010] In some embodiments, the first module includes:

[0011] A first communication processing unit, configured to receive the first signal;

[0012] a main processing unit, bidirectionally connected to the first communication processing unit, and configured to receive the first signal outputted from the first communication processing unit;

[0013] The second communication processing unit is bidirectionally connected to the main processing unit, and is used for switching the first signal output from the main processing unit to the second signal, and transmitting the second signal to the second module.

[0014] In some embodiments, the main processing unit has a second signal interface, the second communication processing unit is a CAN transceiver, and the CAN transceiver is connected to the second signal interface; the CAN transceiver is used to receive the second signal and transmit the second signal to the main processing unit.

[0015] In some embodiments, the main processing unit has a first signal interface, and the first communication processing unit includes:

[0016] an isolation transceiver, configured to receive the first signal;

[0017] A PHY chip is connected to the first signal interface and the isolation transceiver respectively, and the PHY chip is used to transmit the first signal received by the isolation transceiver to the main processing unit.

[0018] In some embodiments, a power supply is also included, and the power supply is respectively connected to the first module, the second module, the third module, and the fourth module, and supplies power to the first module, the second module, the third module, and the fourth module.

[0019] In some embodiments, a first button is further included, wherein the first button is connected to the power supply, and the first button controls the closing of the connection between the power supply and the first module, the second module, the third module, and the fourth module.

[0020] In some embodiments, a fuse is further included, and the fuse is arranged on the line between the power source and the first button.

[0021] In some embodiments, a buzzer is also included, and the buzzer is connected to the third module and is used to issue an alarm according to the control instruction.

[0022] In some embodiments, the third module and the fourth module are connected via an RS485 bus.

[0023] In a second aspect, an embodiment of the present application further provides an extended alarm device, comprising any of the above-mentioned extended alarm devices, wherein the extended alarm device comprises a first module and a second module, and the extended alarm device comprises:

[0024] A box body, the box body having a containing cavity, the first module and the second module being arranged in the containing cavity;

[0025] A door panel, covering and sealing the accommodating cavity;

[0026] An electrical connector is disposed on the box body, and the electrical connector is connected to the first module and the second module respectively.

[0027] In a third aspect, an embodiment of the present application further provides an extended alarm method, comprising:

[0028] Receiving a first signal through a first module, and switching the first signal to a second signal;

[0029] By means of the second module, signal logic processing is performed on the second signal to obtain first information and control instructions;

[0030] transmitting the first information and the control instruction to a third module via a CAN bus, wherein the CAN bus is isolated from the second signal;

[0031] transmitting the first information and the control instruction to the fourth module through the third module;

[0032] The first information is displayed through the fourth module, and an alarm is given according to the control instruction.

[0033] In a fourth aspect, an embodiment of the present application further provides an extended alarm system, comprising any of the extended alarm devices described above.

[0034] In some embodiments, the extended alarm device is provided in plurality, one of the plurality of extended alarm devices serves as a host, and the rest serve as slaves, and the host and the slaves are connected in series.

[0035] Beneficial effects: An extended alarm device provided by an embodiment of the present application includes a first module, a second module, a CAN bus, a third module, and a fourth module. The first module is used to receive a first signal and switch the first signal to a second signal; the second module is bidirectionally connected to the first module, and the second module is used to perform signal logic processing on the second signal to obtain first information and control instructions; the CAN bus connects the second module to an external device, and the CAN bus is isolated from the second signal through the second module; the third module is connected to the second module through the CAN bus and receives the first information and control instructions, and the third module is connected to the external device through the CAN bus; the fourth module is connected to the third module and receives the first information and control instructions, and the fourth module displays the first information and issues an alarm according to the control instructions. This application aims to solve the technical problems that cannot meet the requirements of equipment miniaturization, generalization, signal processing and display. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 An electrical schematic diagram of an extended alarm device provided in an embodiment of the present application;

[0038] Figure 2 A principle block diagram of the first module provided in an embodiment of the present application;

[0039] Figure 3 A principle block diagram of a first communication processing unit provided in an embodiment of the present application;

[0040] Figure 4 A principle block diagram of a second communication processing unit provided in an embodiment of the present application;

[0041] Figure 5 A principle block diagram of a power conversion unit provided in an embodiment of the present application;

[0042] Figure 6 An electrical wiring diagram of an extended alarm device provided in an embodiment of the present application;

[0043] Figure 7 An Ethernet signal transmission path under Ethernet working conditions provided by an embodiment of the present application;

[0044] Figure 8 A CAN signal transmission path under CAN network conditions provided by an embodiment of the present application;

[0045] Fig. 9 An overall structural diagram of an extended alarm device provided in an embodiment of the present application from one perspective;

[0046] Fig.10 An overall structural diagram of the extended alarm device provided in an embodiment of the present application from another perspective;

[0047] Fig.11 This is an overall structural diagram from another perspective of the extended alarm device provided in an embodiment of the present application.

[0048] Reference numerals:

[0049] M01-gateway module; M02-communication module; M03-input and output module; M04-extended alarm display module; SB1-first button; SB2-test light button; SB3-self-test button; SB4-mute button; SB5-dimming button; FA1-fuse; HA-buzzer;

[0050] 1-external device; 2-Ethernet; 3-CAN bus; 4-first communication processing unit; 5-main processing unit; 6-second communication processing unit; 7-power conversion unit; 9-isolation transceiver; 10-PHY chip; 11-power module; 12-power conversion; 13-box; 14-door panel; 15-rectangular conductive cloth pad; 16-screw; 17-electrical connector; 18-back shock absorber; 19-shock absorber mounting bracket; 20-copper foil; 21-scissor door support; 22-installation pressure strip; 23-installation base plate; 24-fuse holder. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0052] It should be understood that although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another component. Therefore, the first component discussed below can be referred to as the second component without departing from the teachings of the concepts of the present application. As used herein, the term "and / or" includes any one of the associated listed items and all combinations of one or more.

[0053] Those skilled in the art will appreciate that the drawings are only schematic diagrams of example embodiments and may not be to scale. The modules or processes in the drawings are not necessarily required to implement the present application and therefore cannot be used to limit the scope of protection of the present application.

[0054] The extended alarm device is mainly used in the shipbuilding industry to repeat various types of information from the damage control monitoring system, including but not limited to fire alarm information, flooding information, liquid level information, and important auxiliary equipment status information. The alarm signals can be used to sound and light alarms to remind auxiliary personnel to deal with them in a timely manner.

[0055] At present, the commonly used extended alarm equipment in the damage control monitoring system mainly includes 40-inch / 43-inch damage control simulation display screen, 15-inch damage control information replay box, sound and light alarm, etc. Among them, the 40-inch / 43-inch damage control simulation display screen and the 15-inch damage control information replay box have the disadvantages of large size, large weight, high price, high power, and complex software programming. They are generally installed in cabins with good environment and ample space. The sound and light alarm has the disadvantages of less and fixed display information and inability to display detailed alarm information.

[0056] As ships have more and more functions, more and more equipment is required on board. Therefore, the damage control monitoring system needs to monitor more equipment, and the ship extension alarm device in the damage control monitoring system needs to process and display more signals. At the same time, the installation space left for the equipment is getting smaller and smaller, so the equipment needs to be smaller and lighter.

[0057] In view of this, an embodiment of the present application provides an extended alarm device to meet the requirements of equipment miniaturization, generalization, multi-signal processing and display, so as to solve at least part of the above-mentioned technical problems.

[0058] See also Figure 1 , Figure 1 An electrical schematic diagram of an extended alarm device provided in an embodiment of the present application. The extended alarm device includes a first module, a second module, a CAN bus 3, a third module, and a fourth module. The first module is used to receive a first signal and switch the first signal to a second signal. The second module is bidirectionally connected to the first module, and the second module is used to perform signal logic processing on the second signal to obtain first information and control instructions. The CAN bus 3 connects the second module to an external device 1, and the CAN bus 3 is isolated from the second signal through the second module. The third module is connected to the second module through the CAN bus 3 and receives the first information and control instructions, and the third module is connected to the external device 1 through the CAN bus 3. The fourth module is connected to the third module and receives the first information and control instructions, and the fourth module displays the first information and issues an alarm according to the control instructions.

[0059] Among them, the first module is a gateway module M01, the first signal is an Ethernet signal, i.e., a LAN signal, and the second signal is a CAN signal. The gateway module M01 switches the LAN signal to a CAN signal and transmits it to the second module. The second module is a communication module M02, and the communication module M02 performs signal logic processing on the CAN signal to obtain the first information and the control instruction. The first information is transmitted to the communication module M02, and the control instruction is an instruction generated from the abnormal information obtained from the first information, and the instruction is used to provide a basis for subsequent alarm work. The CAN bus 3 connects the second module with the external device 1, that is, the CAN bus 3 transmits the CAN signal sent by the external device 1 to the communication module M02. The third module is an input and output module M03, and the input and output module M03 transmits the collected signal to the upper monitoring device through the dual-channel high-speed CAN bus 3. The dual-channel high-speed CAN bus 3 here refers to the CAN bus 3 between the input and output module M03 and the communication module M02, and the CAN bus 3 between the input and output module M03 and the external device 1. The upper monitoring device is used to monitor at least one of the extended alarm devices. The fourth module is an extended alarm display module M04, which can use a display screen to receive the first information and control instructions, display the first information, and issue an alarm according to the control instructions. The information displayed by the extended alarm display module M04 includes but is not limited to fire alarm information, flooding information, and liquid level information.

[0060] like Figure 1 As shown, this embodiment can also be used as a node for signal transmission. If the Ethernet 2 working condition of other devices on the CAN bus 3 fails or there is no Ethernet 2 working condition, its signal can be forwarded to Ethernet 2 through this embodiment. At this time, the signal transmission path is that the communication module M02 receives the CAN bus 3 signal and forwards it to the gateway module M01, and the gateway module M01 converts it into an Ethernet signal and uploads it to Ethernet 2.

[0061] In view of this, the present embodiment performs signal logic processing on the information collected by the gateway module M01 through the communication module M02, so as to facilitate subsequent display and alarm. In the existing method, either the signal is transmitted in the form of Ethernet 2 alone, or the signal is transmitted in the form of CAN bus 3 alone, which cannot adapt to all working conditions and achieve high-precision real-time monitoring of ship information. The present embodiment can collect signals transmitted in the form of Ethernet 2 and then switch them to CAN signals, or collect signals transmitted in the form of CAN bus 3 to the communication module M02 for signal logic processing, that is, the present embodiment has a wider applicability; in addition, the communication module M02 isolates the collected Ethernet 2 information from the information transmitted from the external device 1 by the CAN bus 3, and the two types of information can be better processed by the communication module M02 for signal logic processing. If the CAN bus 3 directly connected to the external device 1 is mixed and then transmitted, the classification of information is not utilized and the processing speed is slow.

[0062] In some embodiments, see Figure 2 , Figure 2 The principle block diagram of the first module provided in the embodiment of the present application. The first module includes a first communication processing unit 4, a main processing unit 5, a second communication processing unit 6, and a power conversion unit 7. The first communication processing unit 4 is an Ethernet communication processing unit, which is used to receive a first signal. The main processing unit 5 is bidirectionally connected to the first communication processing unit 4, and is used to receive a first signal output from the first communication processing unit 4. The second communication processing unit 6 is a CAN communication processing unit, and the second communication processing unit 6 is bidirectionally connected to the main processing unit 5, and is used to switch the first signal output from the main processing unit 5 to a second signal, and transmit the second signal to the second module. The 24V voltage input power conversion unit 7 supplies power to the main processing unit 5.

[0063] It should be noted that the main processing unit 5 is an industrial control core board using Freescale The processor with 528MHz main frequency has a power management architecture that brings lower power consumption. It is equipped with 8-way UART, 2-way USBOTG, 2-way CAN-Bus, 2-way Ethernet 2 and other interfaces. The main processing unit 5 is equipped with 128M or 256M DDR3 memory and 128M to 256M Nand Flash. The core board supports the Linux operating system.

[0064] In some embodiments, see Figure 3 , Figure 3 The first communication processing unit principle block diagram provided for the embodiment of the present application. The main processing unit 5 has a first signal interface, and the first signal interface is an Ethernet interface. The first communication processing unit 4 includes an isolation transceiver 9 and a PHY chip 10. The isolation transceiver 9 is an Ethernet communication, and is used to receive a first signal. The PHY chip 10 is connected to the first signal interface of the main processing unit 5 and the isolation transceiver 9, respectively, and the PHY chip 10 is used to transmit the first signal received by the isolation transceiver 9 to the main processing unit 5.

[0065] It should be noted that the PHY chip 10 uses DP83848K. The chip uses a 40-pin QFN package and has a 10 / 100Mbps PHY Ethernet with an industrial temperature range. The isolation transceiver 9 uses S16037TG from Jingwei, which plays a role in electrical isolation from the inside while sending and receiving messages externally.

[0066] In some embodiments, see Figure 4 , Figure 4The main processing unit 5 has a second signal interface, which is a CAN interface. The second communication processing unit 6 is a CAN transceiver, which is connected to the second signal interface of the main processing unit 5. The CAN transceiver is used to receive the second signal and transmit it to the main processing unit 5.

[0067] It should be noted that the CAN communication processing unit includes CAN bus data reception, analysis and transmission. The main processor has 2 CAN controllers inside and 2 CAN transceivers outside to form a CAN communication bus, which are isolated from each other and have hardware redundancy. The CAN transceiver uses Guangzhou Zhiyuan Electronics' CTM8251KD, which is compatible with the standard CAN2.0B interface. The chip has integrated electrical isolation, an isolation voltage of 5kV, and has over-current and over-temperature protection functions.

[0068] In some embodiments, see Figure 5 , Figure 5 The principle block diagram of the power conversion unit 12 provided in the embodiment of the present application. The power conversion unit 7 includes a power module 11 and a power conversion 12. The power module 11 inputs 24V and outputs 5V. The 5V voltage is converted to 3.3V to the main processing unit 5 through the power conversion 12; and the power module 11 supplies power to each functional module, and each functional module is DP83848K (i.e., PHY chip 10), S16037TG (i.e., isolation transceiver 9), CTM8251KD (i.e., CAN transceiver), SP3232E (i.e., RS232 transceiver), etc.

[0069] It should be noted that the power conversion unit 7 is responsible for converting the external input 24V voltage into the required 5V and 3.3V, and through the electrical isolation protection module, the reliability is increased. The power module 11 uses the LM2676S-5.0 of Texas Instruments (TI), with an output power of 15W. The input range of the power module 11 is 10-40VDC, the output is 5VDC / 3000mA, and the operating temperature is allowed to be -40℃ to +125℃. It provides all the functions of the step-down (buck) switching regulator and can drive a load of up to 3A with excellent line and load regulation characteristics. The conversion efficiency is not less than 90%. Meet the module power requirements.

[0070] In some embodiments, the extended alarm device further includes a power supply, a first button SB1, a fuse FA1, and a buzzer HA. The power supply is respectively connected to the first module, the second module, the third module, and the fourth module, and supplies power to the first module, the second module, the third module, and the fourth module. The first button SB1 controls the connection between the power supply and the first module, the second module, the third module, and the fourth module. The fuse FA1 is set on the line between the power supply and the first button SB1. The buzzer HA is connected to the third module, and the buzzer HA is used to warn.

[0071] Specifically, the power supply is DC 24V, and the first button SB1 controls the connection between the power supply and the gateway module M01, the communication module M02, the input and output module M03, and the extended alarm display module M04.

[0072] It should be noted that the power supply DC24V passes through the fuse FA1, and after the first button SB1 is closed, it supplies power to the gateway module M01, the communication module M02, the input and output module M03, the extended alarm display module M04 and the buzzer HA in the box.

[0073] In some embodiments, the extended alarm device also includes a self-test function, a mute function, and a dimming function. The self-test function is input and output through the input and output module M03, and the self-test function is operated through the self-test button SB3; pressing the self-test button SB3 will trigger the extended alarm display module M04 alarm indication buzzer HA to run, and the self-test function is used to check whether the various functions of the buzzer HA and the extended alarm display module M04 are intact. The mute function is input and output through the input and output module M03, and the mute function is operated through the mute button SB4; the mute function is to flash the alarm at the relevant measuring point on the interface of the extended alarm display module M04. When the buzzer HA sounds, press the mute button SB4, which means that the operator has known the alarm, and the flashing of the relevant measuring point on the interface of the extended alarm display module M04 turns into a flat light, and the buzzer HA is muted and no longer prompts. The dimming function is input and output through the input and output module M03, and the dimming function is operated by the dimming button SB5; the dimming function is when on duty at night, under low light in the cabin, the brightness of the extended alarm equipment is too high, which will affect the rest and observation of the equipment by the duty personnel. The dimming button SB5 can be operated to adjust the brightness of the extended alarm display module M04, which is convenient for the duty personnel to observe the equipment.

[0074] In some embodiments, after the first button SB1 is pressed on the device, the internal gateway module M01, the communication module M02, the input / output module M03, and the extended alarm display module M04 are powered on and operate. If an Ethernet / CAN signal is received, the corresponding status is displayed on the screen of the extended alarm display module M04. If an alarm signal is received, the buzzer HA sounds, and the mute button SB3 on the door panel can be used to mute the buzzer. At the same time, a test light button SB2 and a dimming button SB4 are provided on the door panel for the operator to perform test light and dimming operations.

[0075] In some embodiments, Figure 1As shown, after the equipment is powered on, it can receive dual redundant Ethernet signals and system CAN bus 3 signals from the platform network respectively. When the equipment is in Ethernet 2 working condition, the Ethernet signal is converted to CAN signal through the gateway module to the communication module M02, and then connected to the CAN bus 3 of the damage control monitoring system after isolation through the communication module M02, and then converted to RS485 communication through the input and output module M03 to the extended alarm display module M04 for display; when the equipment is in CAN working condition, the CAN bus 3 signal is directly sent to the input and output module M03, and then converted to RS485 communication through the input and output module M03 to the extended alarm display module M04 for display. When receiving the alarm signal, the input and output module M03 outputs a buzzer signal, and at the same time, the input and output module M03 can also realize the functions of test lighting, silencing, dimming, etc. by receiving button signals. The equipment can automatically switch between the two working conditions directly according to the network situation, or enter a mixed working condition. Mixed working condition refers to having multiple extended alarm devices, some of which use Ethernet 2 and some use CAN bus 3.

[0076] In some implementations, see Figure 6 , Figure 6The electrical wiring diagram of the extended alarm device provided in the embodiment of the present application. The gateway module M01 has 2 Ethernet 2 and 2 CAN bus 3 interfaces, which are used to convert Ethernet 2 into CAN signals in the extended alarm device and communicate with the communication module M02; the communication module M02 has 4 CAN buses 3, 3 RS485 buses, 1 LAN communication interface, and 1 RS232 communication interface, and can transmit the collected signals to the upper monitoring device through each bus or communication interface. It is generally used as a communication conversion module of the system external device 1 or a system internal communication isolation module, that is, the communication module M02 is used to isolate the CAN bus 3 signal from the CAN signal of the gateway module M01, and also has signal logic processing capabilities. The input and output module M03 has 4 switch inputs, 16 switch outputs, 2 high-speed CAN buses 3, and 1 RS485 bus. In this extended alarm device, it is used to collect button signals, output buzzer signals, and convert the CAN bus 3 signals of the communication module into RS485 signals for transmission to the extended alarm display module M04. It should be noted that the input and output module M03 can transmit the collected signals to the upper monitoring device through the dual-channel high-speed CAN bus 3. It is generally used for system button signal collection and status display signal output. The module also has the dimming function of the output signal. The extended alarm display module M04 has 1 RS485 bus and 1 serial port. The extended alarm display module M04 is a 4.3-inch touch display device, using a 32-bit 400M SOC processor, with internal integration of SDR display memory, JPEG image decoding and other functions. It is a serial display terminal integrating TFT display driver, image font storage, GUI operation, audio playback and various configuration controls. The user's single-chip microcomputer only needs to send and receive corresponding serial port commands to easily realize text, picture and curve display. In this extended alarm device, it is used to receive RS485 communication sent by the input and output module M04 and display the corresponding alarm information on the screen.

[0077] Correspondingly, the embodiment of the present application further provides an extended alarm device, which includes the extended alarm device in any of the above embodiments, and thus can have all the technical features and technical effects of the above extended alarm device, which will not be repeated here. The extended alarm device includes a box body 13 and an electrical connector 17. The box body 13 has a accommodating cavity, and the first module and the second module are arranged in the accommodating cavity. The door panel 14 covers the accommodating cavity. The electrical connector 17 is arranged on the box body 13, and the electrical connector 17 is connected to the first module and the second module respectively.

[0078] Specifically, the outside of the box 13 is provided with a door panel 14, a conductive cloth pad 15, a knurled screw 16, an electrical connector 17, a back shock absorber 18, and a shock absorber mounting bracket 19. The inside of the box 13 is provided with a copper foil 20, a scissor door support 21, a pressure strip 22, a mounting base plate 23, and a fuse holder 24.

[0079] Specifically, the circuit design part of this embodiment mainly includes a power supply circuit and a signal transmission circuit. In the power supply circuit, the DC24V power provided by the external device 1 passes through the fuse FA1. After the first button SB1 is closed, it supplies power to the gateway module M01, the communication module M02, the input and output module M03, the extended alarm display module M04 and the buzzer HA in the box. In the signal transmission circuit, under the Ethernet 2 working condition, the Ethernet signal transmission path is the gateway module M01, the communication module M02, the input and output module M03, the extended alarm display module M04 (see Figure 7 ); Under CAN network conditions, the CAN signal transmission path is the input and output module M03, the extended alarm display module M04 (see Figure 8 ).

[0080] See also Fig. 9 , Fig.10 , Fig.11 The door panel 14 is provided with a sealing groove, the sealing groove is treated with conductivity, and a rectangular conductive cloth pad 15 is installed during the general assembly. The knurled screw 16 fixes the door panel 14 to the box body 13. The contact surface between the door panel 14 and the embedded extended alarm display module M04 is treated with copper foil 20 to achieve a conductive effect. The back shock absorber 18 is arranged on the back of the box body 13, which can play a shock-absorbing role for the entire box body 13 when vibration occurs. The shock absorber mounting bracket 19 is arranged on the bulkhead and is used to install the back shock absorber 18. The contact surface between the sealing groove of the box body 13 flange and the door panel 14 is treated with copper foil 20 to achieve a conductive effect. A small scissor door support 21 is arranged on the door panel 14 to fix the position of the door panel 14 and prevent the door panel 14 from accidentally closing when it is open. The box 13 adopts a waterproof flange structure design, which can effectively prevent water from dripping from the top; the matching door panel 14 is provided with a waterproof groove design, and the rectangular conductive cloth pad 15 in the waterproof groove is pressed and contacted with the waterproof flange, which can effectively prevent liquid from entering the box 13. The input and output module M03 and the fuse holder 24 are installed on the installation base plate 23 in the box 13, and the gateway module M01 and the communication module M02 are fastened and locked with the installation pressure strip 22, and the installation is firm and reliable; the input and output module M03 is fastened and installed on the installation base plate 23 with screws 16, and the installation is firm and reliable.

[0081] It should be noted that, in this embodiment, each component is made of three-proof (moisture, salt spray, and mildew) materials, and necessary structural parts are adopted in the structural design part to prevent salt spray and mildew from entering the extended alarm device. The circuit components are mainly coated with coating technology, and the circuit mounting board, solder joints, etc. are coated with three-proof varnish; thread fasteners, anti-loosening washers, anti-loosening nuts and other measures are adopted to prevent the bolt connection from loosening, so as to meet the ship's impact and vibration resistance requirements; low-heat devices are used in the design to make full use of the internal space, and there are no heat dissipation holes in the appearance. The front screen is covered with conductive glass to reduce electromagnetic radiation interference, and conductive shielding pads are used at the joints of the opening and closing door panels to reduce radiation, thereby meeting the ship's electromagnetic compatibility requirements, and the equipment has passed the third-party environment and electromagnetic compatibility tests.

[0082] This embodiment is suitable for marine environmental requirements, has a small size, low power consumption, and can be used in extreme environments with air temperatures of -10°C to 55°C, relative air humidity of no more than 95% with condensation, the presence of salt spray and mold, and shock and vibration, and has a wide range of applications.

[0083] Accordingly, an embodiment of the present application further provides an extended alarm method, which is applied to an extended alarm device, wherein the extended alarm device includes a first module, a second module bidirectionally connected to the first module, a third module connected to the second module using a CAN bus 3, and a fourth module connected to the third module, wherein the CAN bus 3 connects the second module to the external device 1, and the CAN bus 3 connects the third module to the external device 1; the extended alarm method includes:

[0084] The first module receives a first signal and switches the first signal to a second signal. The first signal may be an Ethernet signal (LAN signal), and the second signal may be a CAN signal.

[0085] The second module performs signal logic processing on the second signal to obtain the first information and the control instruction; thus, the signal can be processed and analyzed for subsequent display and warning operations.

[0086] The second module is isolated from the second signal and the first information and control instructions are transmitted to the third module through the CAN bus 3. The function of the CAN bus 3 is to connect the second module and the external device 1 and realize signal isolation and transmission at the same time.

[0087] The first information and the control instruction are transmitted to the fourth module through the third module.

[0088] The first information is displayed through the fourth module, and an alarm is given according to the control instruction. The fourth module is responsible for displaying the first information and performing an alarm operation according to the control instruction. The alarm can remind relevant personnel to handle the alarm information in time through sound, light or other means.

[0089] Through the above steps, the extended alarm device can receive, process and display various types of information, and issue alarms as needed. This approach can improve the efficiency and accuracy of the alarm system, enabling the shipping industry to better monitor and deal with various potential risks and problems. In addition, the extended alarm device can be expanded and optimized according to specific needs. For example, self-test functions, silencing functions and dimming functions can be added to provide more operation and control options. At the same time, the circuit design and structural design of the device can also be optimized according to the special requirements of the ship environment to ensure its stability and reliability.

[0090] Correspondingly, an embodiment of the present application also provides an extended alarm system, which includes several extended alarm devices in any of the above embodiments, one of which serves as a host and the other extended alarm devices serve as slaves, and the host and the slaves are connected in parallel.

[0091] In this extended alarm system, the host and slave are connected in parallel to achieve information transmission and coordination. Through this extended alarm system, multiple extended alarm devices can work together. It should be noted that the specific configuration and functions of the extended alarm system can be customized and optimized according to actual needs. According to the special requirements of the ship industry, appropriate extended alarm devices and configuration solutions can be selected to meet the monitoring and alarm needs of different ships.

[0092] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0093] The above is a detailed introduction to an extended alarm device and its system provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. An extended alarm device, characterized in that: include: A first module, configured to receive a first signal and switch the first signal into a second signal; A second module is bidirectionally connected to the first module, and the second module is used to perform signal logic processing on the second signal to obtain first information and control instructions; A CAN bus connects the second module to an external device, and the CAN bus is isolated from the second signal through the second module; a third module, connected to the second module via the CAN bus and receiving the first information and the control instruction, and the third module is connected to the external device via the CAN bus; The fourth module is connected to the third module and receives the first information and the control instruction. The fourth module displays the first information and issues an alarm according to the control instruction.

2. The extended alarm device according to claim 1, characterized in that: The first module includes: A first communication processing unit, configured to receive the first signal; a main processing unit, bidirectionally connected to the first communication processing unit, and configured to receive the first signal outputted from the first communication processing unit; The second communication processing unit is bidirectionally connected to the main processing unit, and is used for switching the first signal output from the main processing unit to the second signal, and transmitting the second signal to the second module.

3. The extended alarm device according to claim 2, characterized in that: The main processing unit has a second signal interface, and the second communication processing unit is a CAN transceiver, and the CAN transceiver is connected to the second signal interface; the CAN transceiver is used to receive the second signal and transmit the second signal to the main processing unit.

4. The extended alarm device according to claim 3, characterized in that: The main processing unit has a first signal interface, and the first communication processing unit includes: an isolation transceiver, configured to receive the first signal; A PHY chip is connected to the first signal interface and the isolation transceiver respectively, and the PHY chip is used to transmit the first signal received by the isolation transceiver to the main processing unit.

5. The extended alarm device according to claim 1, characterized in that: It also includes a power supply, which is connected to the first module, the second module, the third module, and the fourth module respectively, and supplies power to the first module, the second module, the third module, and the fourth module.

6. The extended alarm device according to claim 5, characterized in that: It also includes a first button, which is connected to the power supply and controls the closing of the connection between the power supply and the first module, the second module, the third module, and the fourth module.

7. The extended alarm device according to claim 6, characterized in that: A fuse is also included, and the fuse is arranged on a line between the power source and the first button.

8. The extended alarm device according to claim 1, characterized in that: It also includes a buzzer, which is connected to the third module and is used to give an alarm according to the control instruction.

9. The extended alarm device according to claim 1, characterized in that: The third module and the fourth module are connected by RS485 bus.

10. An extended alarm device, characterized in that: The device comprises an extended alarm device as claimed in any one of claims 1 to 9, wherein the extended alarm device comprises a first module and a second module, and the extended alarm device comprises: A box body, the box body having a containing cavity, the first module and the second module being arranged in the containing cavity; A door panel, covering and sealing the accommodating cavity; An electrical connector is disposed on the box body, and the electrical connector is connected to the first module and the second module respectively.

11. An extended alarm method, characterized in that: include: Receiving a first signal through a first module, and switching the first signal to a second signal; By means of the second module, signal logic processing is performed on the second signal to obtain first information and control instructions; transmitting the first information and the control instruction to a third module via a CAN bus, wherein the CAN bus is isolated from the second signal; Transmitting the first information and the control instruction to a fourth module through the third module; The first information is displayed through the fourth module, and an alarm is given according to the control instruction.

12. An extended alarm system, characterized in that: Comprising an extended alarm device as claimed in any one of claims 1 to 10.

13. The extended alarm system according to claim 12, characterized in that: There are multiple extended alarm devices, one of which serves as a host and the others serve as slaves, and the host is connected in parallel with the slaves.

Images