Beidou SSAS control box and implementation method thereof

Abstract

According to the Beidou SSAS control box and the implementation method thereof, the designed Beidou SSAS control box is arranged in a ship navigation bridge and connected with a Beidou short message shipborne terminal on a deck, equipment has a Bluetooth function and can be matched with mobile phone Bluetooth, parameter configuration is conducted on the SSAS control box through a mobile phone APP, and a configuration serial port of the equipment can be connected with a computer. Parameters of the SSAS control box can be configured through computer software, the two alarm buttons can be arranged in a cab and a captain room respectively, under the emergency condition, one-key alarm can be achieved, configured information in distress can be sent to a designated address, and the test button is mainly arranged in the cab and used for alarm testing. According to the method and the system, the information with the format of the test information is sent to the specified address, so that the ship security alarm information can be sent through the Beidou satellite system, the application of the Beidou satellite system after being written into the IMO related GMDSS specification is expanded, a new entry point is found for domestic substitution, and the economic value and the social value are relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of ship remote tracking and ship security alarm, and in particular to a Beidou SSAS control box and an implementation method thereof. Background Art

[0002] The construction of the BeiDou-3 project was officially started in 2009. The space segment of the BeiDou-3 satellite navigation system consists of 27 medium earth orbit satellites, 5 synchronous orbit satellites, and 3 inclined synchronous orbit satellites, which will provide services to the world. BeiDou-3 officially provided services to the world on July 31, 2020. BeiDou-3 mainly provides basic navigation services, short message communication services (regional and global), satellite-based augmentation services, international search and rescue services, precise point positioning services and other major services. The capacity of the BeiDou-3 short message service is 10 times that of BeiDou-2, and the transmission power is 10 times smaller than that of BeiDou-2, which makes the BeiDou short message have stronger communication service capabilities;

[0003] At present, the long-range tracking system (LRIT) and the ship security alarm system (SSAS) are both developed based on INMARSAT satellites. Since the Beidou satellite navigation system was written into the new IMO specifications in November 2022, the Beidou satellite navigation system has also been capable of realizing this function. However, there is currently no relevant equipment for applying this function, and related applications are basically blank. In order to solve the above problems, an implementation method of Beidou SSAS is proposed. Summary of the invention

[0004] According to the above existing technical problems, the present invention provides a Beidou SSAS control box and an implementation method thereof, characterized in that the control box has an ARM processor built in, the control box is connected to the SSAS alarm and test button through a 4-core cable, the serial port 1 of the ARM processor is connected to the configuration serial port, the serial port 2 of the ARM processor is connected to the printer serial port, the serial port 3 of the ARM processor is connected to the Bluetooth module, the serial port 4 of the ARM processor is connected to the chart plotter, the serial port 5 of the ARM processor is connected to the Beidou device, the serial port 6 of the ARM processor is used as the reserved serial port 1, the serial port 7 of the ARM processor is used as the reserved serial port 2, the control box is provided with an alarm button interface, the control box is provided with a power input interface, and the control box is provided with an indicator light;

[0005] Furthermore, the GPIO pins of the ARM processor are connected to five indicator lights, the GPIO pins of the ARM processor are connected to a buzzer, and the GPIO pins of the ARM processor are used to drive and connect three alarm buttons through a 485 level differential conversion circuit;

[0006] Furthermore, there are two alarm buttons and one test button to realize timely alarm and test of ship security. The alarm button is red and the test button is green. Both the alarm and test buttons have protective covers to prevent wrong pressing.

[0007] Furthermore, the ARM processor first obtains the longitude, latitude, heading and speed information of the ship through serial port 5, that is, the serial port connected to the Beidou short message communication navigation terminal, and then packages the position information of the ship, and then sends the position information of the ship to the central platform system through serial port 5 using the Beidou satellite short message communication function. The central platform on the shore can modify the time interval for the ship to regularly report the position information by sending instructions through short messages. After pressing the alarm and test buttons, the alarm is triggered, and the automatic position reporting is suspended until the alarm task is completed and the Beidou is not overclocked, and then the automatic position reporting function is performed. The specific information of the alarm is connected to the configuration port through a computer with a serial port line, and the information is configured through the computer's APP software tool T006 and the mobile phone is connected through Bluetooth, and the Android mobile phone APP is used to configure through Bluetooth;

[0008] The Beidou SSAS control box device includes the following communication interfaces:

[0009] 1) Beidou short message communication navigation terminal communication power supply interface: used to connect Beidou antenna,

[0010] 2) RS232 serial port: reserved for connecting to a display,

[0011] 3) R232 serial port (configuration serial port): used to connect to an external computer and use the configuration software to set internal configuration parameters.

[0012] 4) Printer serial port: used to connect a portable printer,

[0013] 5) Reserve 2 422 universal serial ports;

[0014] The alarm button interfaces of the Beidou SSAS control box device include the following:

[0015] 1) Alarm button 1, red with protective cover, can support 100m cable connection;

[0016] 2) Alarm button 2, red with protective cover, can support 100m cable connection;

[0017] 3) Test alarm button, green with protective cover, can support 100m cable connection;

[0018] The power input interface of Beidou SSAS control box device includes:

[0019] 1) Power input: DC 9V~32V,

[0020] 2) Power switch;

[0021] Beidou SSAS control box indicator lights include:

[0022] 1) Power supply: When the power supply is normal, the indicator light is on; when the power supply is abnormal, the indicator light is off.

[0023] 2) Beidou short message: The indicator light is on when the communication with Beidou antenna is normal, otherwise it is off.

[0024] 3) Beidou positioning: When Beidou positioning is normal, the indicator light is on, and when it is not positioned, the indicator light is off.

[0025] 4) Bluetooth: It lights up when the Bluetooth switch is turned on, flashes when the Bluetooth is not connected, and lights up when the Bluetooth is successfully connected.

[0026] 5) Alarm: After the alarm is issued, the indicator light will light up.

[0027] Beneficial effects of the present invention:

[0028] The method for realizing ship security alarm and remote tracking based on Beidou satellite navigation system provided by the present invention comprises appearance design, wiring terminal design, wiring connection mode, external port design, Bluetooth connection mode design, power supply design, indicator light design, indicator light fault meaning definition and the like in hardware aspects, and computer version configuration software, Android version mobile phone APP software, SSAS control box embedded software and the like in software aspects, which constitute a complete ship security alarm and remote tracking control system, are integrated in the SSAS control box unit, and realize the designed function through Beidou data transmission terminal A330 and the short message function of Beidou satellite system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic block diagram of the overall structure of a Beidou SSAS control box and an implementation method thereof of the present invention;

[0030] Figure 2 It is a terminal structure block diagram of the present invention;

[0031] Figure 3 It is a logic signal correspondence diagram of the alarm button RS485 of the present invention;

[0032] Figure 4 This is a schematic diagram of the principle of the Bluetooth module of the present invention;

[0033] Figure 5 This is a power supply topology diagram of the present invention. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] The Beidou SSAS control box has a built-in ARM processor, which is used to process the serial port protocols of each interface to realize self-test, protocol communication and other functions. The SSAS alarm and test buttons are connected to the SSAS control box through a 4-core cable, and the alarm command is sent to the SSAS control box using differential communication to trigger the alarm and test. The alarm button is red and the test button is green. The alarm and test buttons have protective covers to prevent incorrect pressing. The ARM processing circuit is mainly connected to the Beidou data transmission user machine serial port, chart plotter serial port, configuration serial port, printer serial port, Bluetooth module, etc. through the serial port, connected to FLASH through the SPI interface, and connected to the alarm button through GPIO, etc.

[0039] The ARM processor is connected to three RS232 serial ports, namely the configuration serial port, printer serial port and chart plotter serial port. Then one TTL serial port is directly connected to the serial port to Bluetooth module. Finally, three RS422 serial ports are connected to the Beidou user machine serial port and two 422 reserved serial ports. The configuration serial port and printer serial port are reserved for external connection using DB9 sockets for easy connection.

[0040] The software upgrade of the N32G457 microcontroller only supports serial port 1, so serial port 1 is reserved as the configuration serial port. The Bluetooth module is integrated in the control box, and the connector is not visible to the outside. The internal TTL is directly connected to ARM. The power switch controls whether the Bluetooth module is powered on. The remaining four serial ports (chartplotter serial port, Beidou user machine serial port, reserved RS422 serial port 1, reserved RS422 serial port 2) are all connected by wiring terminals, which is convenient for installers to operate. At the same time, the power supply of the Beidou user machine serial port is reserved on the terminal;

[0041] The control box has three external buttons, namely alarm button 1, alarm button 2 and test button. In order to improve ARM protection and signal anti-interference, the data of the three buttons are converted into RS485 differential mode input, and the signal is reserved for signal +, signal -, and signal ground. Signal + and signal - are pulled up to JK3V3 with 100K resistors by default;

[0042] The Bluetooth module uses the HC-08 module from Guangzhou Huicheng Technology. The HC-08 Bluetooth serial communication module is a new generation of data transmission module based on Bluetooth Specification V4.0 BLE Bluetooth protocol. The wireless working frequency band is 2.4GHzISM, the modulation mode is GFSK, the maximum transmission power of the module is 4dBm, the receiving sensitivity is -93dBm, and it can achieve 80 meters ultra-long-distance communication in an open environment;

[0043] The module size is 26.9mm×13mm×2.2mm, and it integrates stamp packaging holes and pin header welding holes. It can be packaged as a patch and can also be welded with pin headers. It is very convenient to embed into the application system. It has its own LED status indicator to intuitively judge the Bluetooth connection status.

[0044] The module uses TI's CC2540F256 chip, configures 256K bytes of space, supports AT commands, and users can change the role (master, slave mode) and serial port baud rate, device name and other parameters as needed, which is flexible to use;

[0045] The power input is a standard shipborne 24V power supply. Air discharge tubes and TVS tubes are added at the inlet to protect the system circuit. Then it is supplied to the Beidou user terminal and the step-down chip SCT2450 through the power switch. After it is reduced to 3.8V, it is reduced to 3.3V through two LDO SGM2053 and supplied to the ARM and Bluetooth modules respectively.

[0046] Example 2

[0047] The Beidou SSAS control box device includes a Beidou short message communication navigation terminal interface, a chart plotter serial port interface, a configuration serial port, a printer serial port, three alarm button interfaces, a power switch, a power input interface, two reserved 422 serial ports, and indicator lights;

[0048] Furthermore, the control of the Beidou SSAS control box device is implemented by an ARM single-chip microcomputer, with built-in embedded software, and the ARM single-chip microcomputer realizes the communication management of all peripheral devices. Furthermore, by default, ARM's serial port 1 is connected to the configuration serial port, ARM's serial port 2 is connected to the printer serial port, ARM's serial port 3 is connected to the Bluetooth module, ARM's serial port 4 is connected to the chart plotter, ARM's serial port 5 is connected to the Beidou device, ARM's serial port 6 is used as the reserved serial port 1, and ARM's serial port 7 is used as the reserved serial port 2;

[0049] Furthermore, the GPIO pins of the ARM are connected to five indicator lights to drive the status display of the indicator lights;

[0050] Furthermore, the GPIO pin of ARM is connected to the buzzer, which is convenient for subsequent applications to set the working of the buzzer;

[0051] Furthermore, the GPIO pins of ARM are used to drive and connect three alarm buttons through a 485 level differential conversion circuit;

[0052] Furthermore, the Beidou SSAS control box device has a timed position reporting function so that the shore-side central platform knows the real-time position and status of the ship;

[0053] Furthermore, the format of the timed reporting content is shown in Table 1;

[0054] Table 1 Regular reporting content

[0055]

[0056] The ARM single chip microcomputer first obtains the longitude, latitude, heading and speed information of the ship through serial port 5, which is the serial port connected to the Beidou short message communication navigation terminal. Then it packages the position information of the ship according to Table 1, and then sends the position information of the ship to the central platform system through serial port 5 using the Beidou satellite short message communication function.

[0057] Furthermore, the shore-side central platform can send instructions through short messages to modify the time interval for the ship to regularly report position information;

[0058] Furthermore, two alarm buttons and one test button are installed to realize timely alarm and test of ship security. The alarm button connection includes two parts:

[0059] 1) It is 485 differential signal

[0060] 2) Power feeding: directly feed the input power of the Beidou SSAS control box device to the alarm button.

[0061] Adopting 485 two-wire differential signal can ensure the alarm button supports the driving capability of 100-meter cable length;

[0062] Furthermore, the alarm content is set as shown in Table 2;

[0063] Table 2 Alarm content

[0064]

[0065]

[0066] Furthermore, the alarm process is as follows:

[0067] Press the alarm 1 button for more than 1 second, then the alarm buzzer controlled by the Beidou SSAS will sound and the alarm indicator will flash red;

[0068] After the alarm 1 button is triggered, the Beidou SSAS control box will fill in the relevant status data according to the alarm content in Table 4-1, and send alarm short message information to the destination address in sequence according to the "Button 1 Alarm Destination Address List" through the Beidou terminal A330;

[0069] After the alarm is triggered, the alarm information will be sent at the maximum frequency interval of the card frequency. For example, the Beidou card is 60s, and the next destination address alarm information will be sent at an interval of 60 seconds;

[0070] After the alarm is triggered, the automatic position reporting will be suspended until the alarm task is completed and Beidou is not overclocked, then the automatic position reporting function will be performed;

[0071] 2 seconds after the last alarm destination address is sent, the buzzer stops sounding and the alarm indicator stops flashing;

[0072] When an alarm is triggered, the words SSAS ALERT MESSAGE will be displayed on the content;

[0073] After the test button is pressed, the principle of sending the message is the same as above, but the buzzer does not sound during this alarm. The test message is sent to the above specified address, and the type (TYPE) in the test message is displayed as TEST;

[0074] The specific information in Table 2 above can be configured through the computer using a serial cable to connect to the configuration port and the computer APP software tool T006. It can also be configured through Bluetooth connection to a mobile phone using an Android phone APP;

[0075] The ship security alarm and remote tracking implementation method based on the Beidou satellite navigation system includes hardware appearance design, terminal block design, wiring connection method, external port design, Bluetooth connection method design, power supply design, indicator light design, indicator light fault meaning definition, etc., and software computer version configuration software, Android version mobile phone APP software, SSAS control box embedded software, etc. constitute a complete ship security alarm and remote tracking control system, which is integrated in the SSAS control box unit and realizes its design function through the Beidou data transmission terminal A330 and the short message function of the Beidou satellite system.

[0076] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A Beidou SSAS control box device, characterized in that: The control box has a built-in ARM processor, and the control box is connected to the SSAS alarm and test button through a 4-core cable. The serial port 1 of the ARM processor is connected to the configuration serial port, the serial port 2 of the ARM processor is connected to the printer serial port, the serial port 3 of the ARM processor is connected to the Bluetooth module, the serial port 4 of the ARM processor is connected to the chart plotter, the serial port 5 of the ARM processor is connected to the Beidou device, the serial port 6 of the ARM processor is used as the reserved serial port 1, and the serial port 7 of the ARM processor is used as the reserved serial port 2. An alarm button interface is set on the control box, a power input interface is set on the control box, and an indicator light is set on the control box.

2. A Beidou SSAS control box device according to claim 1, characterized in that, The GPIO pin of the ARM processor is connected to 5 indicator lights, the GPIO pin of the ARM processor is connected to a buzzer, and the GPIO pin of the ARM processor is used to drive and connect 3 alarm buttons through a 485 level differential conversion circuit.

3. A Beidou SSAS control box device according to claim 2, characterized in that, There are two alarm buttons and one test button to realize timely alarm and test of ship security. The alarm button is red and the test button is green. Both the alarm and test buttons have protective covers to prevent incorrect pressing.

4. A method for implementing a Beidou SSAS control box device according to any one of claims 1 to 3, characterized in that: The ARM processor first obtains the longitude, latitude, heading and speed information of the ship through serial port 5, which is the serial port connected to the Beidou short message communication navigation terminal, and then packages the ship's position information, and then sends the ship's position information to the central platform system through serial port 5 using the Beidou satellite short message communication function. The central platform on the shore can modify the time interval for the ship to report the position information regularly by sending instructions through short messages. After pressing the alarm and test buttons, the alarm is triggered, and the automatic position reporting is suspended until the alarm task is completed and the Beidou is not overclocked, and then the automatic position reporting function is performed. The specific alarm information is connected to the configuration port through a computer with a serial port line, and the information is configured through the computer's APP software tool T006 and the mobile phone is connected via Bluetooth, and the Android phone APP is used for configuration via Bluetooth.

Images