A distress alarm device based on a Beidou navigation system and a use method thereof

Abstract

The application provides a distress alarm device based on a Beidou navigation system and a use method, characterized in that an integrated box body design is adopted, core components such as a display control unit, an alarm unit, an adjusting signal unit, a spare battery compartment and the like are integrated, a damping leg unit is arranged at the bottom of the box body, mounting lugs are arranged on the rear side wall, multiple scene deployments are adapted, the alarm unit comprises a double false touch prevention structure and an indicator lamp, false triggering is avoided and the alarm state can be confirmed, the adjusting signal unit is driven to ascend and descend by an electric push rod, the height of an A330 Beidou antenna is adjusted to avoid shielding and the signal receiving strength is improved, the spare battery compartment is a pull-out type, emergency power supply is ensured, the device does not need to rely on a public network, quick alarm and positioning are realized through a Beidou short message, the structure is compact, operation is convenient, adaptability is strong, and the device is suitable for scenes such as ship long-distance sailing, mountain operation, outdoor exploration and the like, and effectively ensures the safety of life and property.

Description

Technical Field

[0001] This invention relates to the field of distress alarm systems, specifically a distress alarm device and its usage method based on the BeiDou navigation system. Background Technology

[0002] In scenarios such as ocean voyages, mountain engineering operations, and outdoor exploration, rapid alarm and location in case of sudden distress such as ship running aground, loss of contact with personnel, or equipment failure is a core necessity for ensuring the safety of life and property. Traditional distress alarm methods mostly rely on mobile communication networks, but in areas without public network coverage, such as the open sea, deserts, and deep mountains, signal interruption will directly lead to alarm failure. On the other hand, international satellite search and rescue systems have the drawbacks of high terminal costs and long message transmission delays, making it difficult to meet the widespread needs of small and medium-sized ships and individual outdoor enthusiasts in China.

[0003] Against this backdrop, distress alarm systems based on the BeiDou Navigation Satellite System have become a core solution. The short message communication function of the BeiDou Navigation Satellite System does not rely on terrestrial networks and can directly achieve two-way transmission of positioning information and alarm commands via satellite. It is naturally adapted to distress scenarios without public network coverage. With the full networking of the BeiDou-3 system, the miniaturization and low power consumption performance of terminal hardware have been significantly improved. The industry's demand for integrated, easy-to-operate, and highly reliable BeiDou distress alarm systems is becoming increasingly urgent. These devices need to achieve one-click alarm triggering in distress scenarios, automatic signal enhancement to adapt to the environment, and a compact and portable deployment form to match the emergency use needs of different user groups.

[0004] The existing distress alarm system devices based on the Beidou navigation system have the following shortcomings: (1) The core components of the existing devices, namely the Beidou antenna, display and control unit, trigger button, etc., are mostly designed independently and need to be fixedly installed in the usage scenario. For example, in the ship scenario, the antenna needs to be erected on the deck support separately, the display and control unit needs to be fixed on the cockpit control panel, and the remote trigger button also needs to be arranged in multiple locations such as the cockpit and cabin. This distributed structure not only occupies a lot of limited space, but also leads to messy and numerous wiring, and the lines are easily damaged by collisions and wear, causing short circuit faults. More importantly, the environment is often chaotic when in distress, and the distributed components may be blocked or damaged by foreign objects, or the user may have difficulty quickly locating the trigger button in a panic, delaying the alarm time; (2) Existing The Beidou antenna of the device is a non-adjustable structure. When the ship's deck equipment is blocked or the mountainous terrain is undulating, the signal reception is obstructed and the success rate of short message transmission is low. At the same time, the adjustment operation is cumbersome and it is impossible to quickly adjust to an unobstructed height in distress scenarios; (3) The alarm button of the existing device is a single press button. When the ship is rocking or the personnel are panicked, the alarm is easily triggered by mistake, occupying the rescue channel. After pressing, there is no visual prompt, and the user cannot confirm whether the trigger was successful, which may lead to repeated operation; (4) The existing device is only adapted to a single scenario and cannot quickly switch to different usage scenarios. If the scenario needs to be changed, the installation structure needs to be redesigned, which increases the cost; (5) The existing device lacks an intelligent control core and cannot realize functions such as communication priority management, location update warning, and power interruption recovery. Summary of the Invention

[0005] In view of the above technical problems, the present invention provides an integrated, adjustable, and accident-proof distress alarm device based on the Beidou navigation system.

[0006] This invention provides a distress alarm device and its usage method based on the BeiDou navigation system. The device comprises a housing, a connecting plate, a display and control unit, a backup battery compartment, an alarm unit, a module unit, mounting lugs, an adjustment signal unit, and shock-absorbing legs. The shock-absorbing legs are fixedly connected to the four corners of the bottom of the housing. A connecting plate is welded to the upper part of the front sidewall of the housing, and a T-shaped protrusion is provided on the connecting plate. A T-shaped groove is provided on the back of the display and control unit. The connecting plate and the display and control unit are slidably and detachably connected. A through groove is formed in the lower part of the front sidewall of the housing, and a slide rail is provided on the sidewall of the through groove. The backup battery compartment is slidably connected within the through groove. The alarm unit and the module unit are located on the left sidewall of the housing. Mounting lugs are fixedly connected to the rear sidewall of the housing by bolts. A top plate is hinged to the top of the housing, and an adjustment signal unit is fixedly connected to the top plate by a flange. The backup battery compartment is a pull-out independent cavity containing a backup battery. Under normal conditions, the device is powered by an external power source and charges the battery. When the external power source is interrupted, the battery in the backup battery compartment can power the device, ensuring emergency power supply.

[0007] The alarm unit includes an anti-accidental touch button structure, a protective cover, and an indicator light. The anti-accidental touch button structure is fixedly connected to the left side wall of the enclosure. The outer wall of the anti-accidental touch button structure is fitted with a protective cover, which is fixedly connected to the left side wall of the enclosure. An indicator light is provided at the bottom of the anti-accidental touch button structure, and the indicator light is fixedly connected to the left side wall of the enclosure.

[0008] The anti-accidental touch button structure includes a housing, a fixing post, a limiting post, a wiring post, an anti-accidental touch spring, and a limiting plate. One side of the limiting plate is fixedly connected to the side wall of the housing, and the other side of the limiting plate contacts the inner wall of the housing. The fixing post is fixedly connected to the inner wall of the housing. Two limiting posts are horizontally welded onto the fixing post. The other end of the fixing post is fixedly connected to the wiring post. An anti-accidental touch spring is sleeved on the outside of the wiring post. One side of the anti-accidental touch spring is fixed to the fixing post, and the other side is fixed to the inner wall of the limiting plate. The alarm unit is equipped with dual... To prevent accidental alarm activation, the protective cover must be opened first, and the outer shell of the anti-accidental-touch button structure must be rotated to align the limiting post with the limiting plate. Then, the outer shell of the anti-accidental-touch button structure should be pressed inward to make the terminal contact the alarm circuit. The anti-accidental-touch spring can be reset and disconnect the circuit after compression. At the same time, in the non-operational state, the pre-tension force of the spring itself keeps the terminal disconnected from the alarm circuit, thus blocking the risk of accidental activation at the source. The indicator light at the bottom of the anti-accidental-touch button structure is constantly lit after the circuit is connected, indicating to the user that the alarm has been triggered.

[0009] The module unit includes a module structure and a protective cover. The module structure is installed on the left side wall of the enclosure, and the protective cover is installed outside the module interface. The module unit is arranged in a partitioned manner. The protective cover outside the module interface is dustproof and waterproof, and the purpose of the interface is marked to reduce the wiring error rate and ensure the stable operation of each module.

[0010] The signal adjustment unit includes a fixed base, a telescopic cylinder, an A330 Beidou antenna, and an electric push rod. The fixed base is fixed to the top plate of the housing via a flange. The telescopic cylinder is fixedly connected to the top of the fixed base. The A330 Beidou antenna is threadedly connected to the top of the telescopic cylinder. An electric push rod is installed inside the telescopic cylinder. The bottom of the electric push rod is fixed to the fixed base. The electric push rod controls the telescopic cylinder to extend and retract. The A330 Beidou antenna fixed to the top of the telescopic cylinder can avoid obstruction and improve the satellite signal reception strength through height adjustment.

[0011] The shock-absorbing leg unit includes a telescopic rod, a spring, a base, and a rubber pad. The top of the telescopic rod is fixed to the bottom of the housing, and a spring is installed inside the telescopic rod. The bottom of the telescopic rod is fixedly connected to the base, and the bottom of the base is fixedly connected to the rubber pad. The spring absorbs impact energy through compression and stretching, reducing vibration damage to internal components. The rubber pad further reduces shock and increases the friction at the bottom of the device, making the device more stable.

[0012] The controller unit includes a main control module, a BeiDou signal-motor linkage submodule, an automatic power switching submodule, and an automatic alarm triggering submodule. The main control module coordinates these three functional submodules. The BeiDou signal-motor linkage submodule connects the A330 BeiDou antenna to the electric push rod inside the telescopic cylinder, monitors the signal strength of the A330 BeiDou antenna in real time, and triggers the electric push rod to raise the antenna when the signal is weak. The automatic power switching submodule monitors the external power supply voltage and automatically connects the backup battery circuit when there is a power outage or abnormal voltage. The automatic alarm triggering submodule detects the trigger signal of the anti-accidental touch button, automatically generates a simple alarm message containing location and time, and sends it via BeiDou short message service.

[0013] The main control module is connected to the display and control unit via a bus. The display and control unit has three new displays: the signal display status of the Beidou signal-motor linkage submodule (green light indicates signal strength, red light indicates weak signal); the power supply display status of the automatic power switching submodule (external power supply status and backup power supply status); and the alarm display status of the automatic alarm triggering submodule (alarm sending status and alarm confirmation status).

[0014] The beneficial effects of this invention are as follows: This invention provides a distress alarm device and its usage method based on the Beidou navigation system. By setting up an integrated enclosure with an independent wiring cavity inside, a fixed connection of the adjustment signal unit on the top plate of the enclosure, and a detachable display and control unit connection plate, a spare battery compartment, and module units on the side wall of the enclosure, the core components are integrated into one enclosure, reducing exposed wiring connections. A pull-out battery compartment is provided in the lower part of the side wall of the enclosure, with a spare battery inside, which can be replaced without disassembling the device, adapting to emergency power supply needs in distress situations. The module units are set up on the side wall of the enclosure, and the interfaces are divided and labeled to reduce wiring errors. At the same time, a protective cover is set on the outside of the wiring module to improve the service life of the interface. By setting an adjustable signal unit, an electric push rod is installed inside the telescopic cylinder to drive the A330 antenna at the top of the telescopic cylinder to achieve height adjustment, adapting to different scenarios and avoiding obstruction.

[0015] By setting up an alarm unit with a dual-trigger alarm structure, the alarm circuit can be connected and the alarm triggered only after the protective cover is opened, the outer shell of the anti-accidental touch button structure is rotated, and then the button is pressed inward, thus reducing the false alarm rate. At the same time, an indicator light is set at the bottom, which stays on when the alarm is triggered, making it easy for users to confirm that the alarm has been issued.

[0016] By setting up mounting lugs and shock-absorbing legs, the device can be adapted to different installation scenarios. When the device needs to be installed on a wall, simply use bolts to fix the mounting lugs to the wall. When the device needs to be placed on a deck, the shock-absorbing legs can reduce the vibration of the device and protect the enclosure components.

[0017] By setting up a controller unit, the device is made easier for users to use. Users only need to trigger the alarm, reducing the difficulty of operation during emergencies. At the same time, automatic self-testing, automatic retransmission, and automatic power cutting reduce alarm failures caused by human error and improve the alarm success rate in scenarios such as offshore operations. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 2 This is a side view of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 3 This is a detailed structural diagram of the alarm unit and module unit of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 4 This is a detailed structural diagram of the adjustment signal unit of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 5 This is a detailed structural diagram of the shock-absorbing leg unit of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 6 This is an exploded view of the anti-accidental touch button structure in the alarm unit of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 7 This is a schematic diagram of the controller unit structure of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention; Figure 8 This is a flowchart of the Beidou signal-motor linkage submodule in the controller unit of the distress alarm device and its usage method based on the Beidou navigation system of the present invention. Figure 9 This is a flowchart of the automatic power switching submodule in the controller unit of a distress alarm device and its usage method based on the Beidou navigation system according to the present invention. Figure 10 This is a flowchart of the automatic alarm triggering submodule in the controller unit of the distress alarm device and its usage method based on the Beidou navigation system of the present invention. Attached reference numerals: 1-Box body; 11-Top plate; 2-Connecting plate; 3-Display and control unit; 4-Spare battery compartment; 5-Alarm unit; 51-Anti-accidental touch button structure; 511-Outer shell; 512-Fixing post; 513-Limit post; 514-Wiring post; 515-Anti-accidental touch spring; 516-Limit plate; 52-Protective cover; 53-Indicator light; 6-Module unit; 61-Module interface; 62-Protective cover; 7-Mounting lug; 8-Adjustment signal unit; 81-Fixing base; 82-Telescopic cylinder; 83-A330 Beidou antenna; 84-Electric push rod; 9-Shock-absorbing leg unit; 91-Telescopic rod; 92-Spring; 93-Base; 94-Rubber pad. Detailed Implementation Example 1

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings.

[0020] As shown in the figure, this invention provides a distress alarm device and its usage method based on the Beidou navigation system. It is characterized by comprising a housing 1, a connecting plate 2, a display and control unit 3, a spare battery compartment 4, an alarm unit 5, a module unit 6, mounting ears 7, a signal adjustment unit 8, and shock-absorbing leg units 9. The shock-absorbing leg units 9 are fixedly connected to the four corners of the bottom of the housing 1. The connecting plate 2 is welded and fixed to the upper part of the front side wall of the housing 1. T-shaped protrusions are provided on the connecting plate 2. A T-shaped groove is provided on the back of the display and control unit 3. The connecting plate 2 and the display and control unit 3 are slidably and detachably connected. The lower part of the front side wall of the housing 1 is open... A through-slot is provided, and a slide rail is installed on the side wall of the through-slot. The spare battery compartment 4 is slidably connected in the through-slot. An alarm unit 5 and a module unit 6 are installed on the left side wall of the housing 1. The rear side wall of the housing 1 is fixedly connected to the mounting lug 7 by bolts. The top of the housing 1 is hinged to the top plate 11 by a hinge. The adjustment signal unit 8 is fixedly connected to the top plate 11 by a flange. The spare battery compartment 4 is a pull-out independent cavity with a built-in spare battery. Under normal conditions, the device is powered by an external power source and charges the battery. When the external power source is interrupted, the spare battery in the spare battery compartment 4 can power the device to ensure emergency power supply.

[0021] The alarm unit 5 includes an anti-accidental touch button structure 51, a protective cover 52, and an indicator light 53. The anti-accidental touch button structure 51 is fixedly connected to the left side wall of the box 1. The protective cover 52 is fitted over the outer wall of the anti-accidental touch button structure 51 and is fixedly connected to the left side wall of the box 1. An indicator light 53 is provided at the bottom of the anti-accidental touch button structure 51 and is fixedly connected to the left side wall of the box 1.

[0022] The anti-accidental touch button structure 51 includes a housing 511, a fixing post 512, a limiting post 513, a wiring post 514, an anti-accidental touch spring 515, and a limiting plate 516. One side of the limiting plate 516 is fixedly connected to the side wall of the housing 1, and the other side of the limiting plate 516 contacts the inner wall of the housing 511. The fixing post 512 is fixedly connected to the inner wall of the housing 511. Two limiting posts 513 are horizontally welded on the fixing post 512. The other end of the fixing post 512 is fixedly connected to the wiring post 514. An anti-accidental touch spring 515 is sleeved on the outside of the wiring post 514, and one side of the anti-accidental touch spring 515 is fixed to the fixing post. On 512, the other side of the anti-accidental touch spring 515 is fixed to the inner wall of the limit plate 516; the alarm unit 5 is equipped with double protection to prevent accidental alarm. When an alarm is triggered, the protective cover 52 must be opened first, the outer shell 511 of the anti-accidental touch button structure 51 must be rotated so that the limit post 513 is aligned with the limit plate 516, and then the outer shell 511 of the anti-accidental touch button structure 51 must be pressed inward so that the terminal post 514 contacts the alarm circuit. After the anti-accidental touch spring 515 is compressed, it can be reset to disconnect the circuit. The indicator light 53 at the bottom of the anti-accidental touch button structure 51 is constantly lit after the circuit is connected, indicating to the user that the alarm has been triggered.

[0023] Module unit 6 includes a module structure and a protective cover 62. The module structure is set on the left side wall of the enclosure 1, and the protective cover 62 is set outside the module interface 61. Module unit 6 adopts a partitioned arrangement. The protective cover 62 outside the module interface 61 is dustproof and waterproof, and the purpose of the interface is marked to reduce the wiring error rate and ensure the stable operation of each module.

[0024] The signal adjustment unit 8 includes a fixed base 81, a telescopic cylinder 82, an A330 Beidou antenna 83, and an electric push rod 84. The fixed base 81 is fixed to the top plate 11 of the housing 1 by a flange. The top of the fixed base 81 is fixedly connected to the telescopic cylinder 82. The top of the telescopic cylinder 82 is connected to the A330 Beidou antenna 83 by a thread. An electric push rod 84 is installed inside the telescopic cylinder 82. The bottom of the electric push rod 84 is fixed to the fixed base 81. The electric push rod 84 controls the telescopic cylinder 82 to extend and retract. The A330 Beidou antenna 83 fixed to the top of the telescopic cylinder 82 can avoid obstruction and improve the satellite signal reception strength through height adjustment.

[0025] The shock-absorbing leg unit 9 includes a telescopic rod 91, a spring 92, a base 93, and a rubber pad 94. The top of the telescopic rod 91 is fixed to the bottom of the housing 1. The spring 92 is installed inside the telescopic rod 91. The bottom of the telescopic rod 91 is fixedly connected to the base 93. The bottom of the base 93 is fixedly connected to the rubber pad 94. The spring 92 absorbs impact energy through compression and tension, reducing vibration damage to internal components. The rubber pad 94 further reduces shock and increases the friction at the bottom of the device, making the device more stable.

[0026] The controller unit includes a main control module, a Beidou signal-motor linkage submodule, an automatic power switching submodule, and an automatic alarm triggering submodule. The main control module coordinates the three functional submodules. The Beidou signal-motor linkage submodule connects the A330 Beidou antenna to the telescopic cylinder drive motor, monitors the signal strength of the A330 Beidou antenna in real time, and triggers the drive motor to raise the antenna when the signal is weak. The automatic power switching submodule monitors the external power supply voltage and automatically connects the backup battery circuit when there is a power outage or abnormal voltage. The automatic alarm triggering submodule detects the trigger signal of the anti-accidental touch button, automatically generates a simple alarm message containing location and time, and sends it via Beidou short message.

[0027] The main control module is connected to the display and control unit 3 via a bus. The display and control unit 3 has three new displays: the signal display status of the Beidou signal-motor linkage submodule (green light indicates signal compliance, red light indicates weak signal); the power supply display status of the automatic power switching submodule (including external power supply connection status and backup power supply connection status); and the alarm display status of the automatic alarm triggering submodule (including alarm sending status and alarm confirmation status). Example 2

[0028] When using this invention: depending on the placement requirements of the device, the device can be fixed to the target position by bolts through the mounting lugs 7 on the rear side wall of the housing 1, or placed on a flat surface. The shock-absorbing leg units 9 fixed at the four corners of the bottom of the housing 1 can then provide stable support. The telescopic rod 91 of the shock-absorbing leg unit 9 can adaptively adjust its length. The built-in spring 92 and the rubber pad 94 at the bottom of the base 93 work together to buffer vibrations and prevent the device from being damaged by bumps.

[0029] After the device is placed, it is connected to an external power source through the interface of module unit 6. At this time, the backup battery in the backup battery compartment 4 starts to charge automatically, and the protective cover 62 closes to protect the module interface 61 and prevent dust and moisture from entering.

[0030] After the external power is connected, the device starts automatically. The display and control unit 3 is detachably connected to the T-shaped groove on its back via the T-shaped protrusion on the connecting plate 2. After that, the display and control unit 3 is turned on, the touch screen lights up, and displays the Beidou satellite signal strength, the device's real-time positioning data, and the backup battery power in real time. The adjustment signal unit 8, which is fixed by a flange on the top plate 11 of the top of the housing 1 via a hinge, is retracted to its initial state by default. The A330 Beidou antenna 83 is fixed to the top of the telescopic cylinder 82 via a threaded connection to ensure basic signal reception. The operator can check the operating status of each component through the display and control unit 3 to confirm whether the device is working properly.

[0031] When the display and control unit 3 shows that the Beidou satellite signal is weak, the electric push rod 84 of the signal adjustment unit 8 is activated to drive the telescopic cylinder 82 to extend and retract each stage, thereby adjusting the height of the A330 Beidou antenna 83 until the display and control unit 3 shows that the signal strength meets the requirements, and then the electric push rod 84 stops operating.

[0032] When an alarm is triggered in an emergency, first open the protective cover 52 of the alarm unit 5. Then rotate the outer shell 511 of the anti-accidental touch button structure 51 so that the limiting post 513 horizontally welded on the fixing post 512 fixed to the inner wall of the outer shell 511 is aligned with the limiting plate 516. Next, press the outer shell 511 inward to drive the terminal 514 fixed at the other end of the fixing post 512 to contact the alarm circuit. At this time, the indicator light 53 fixed to the left side wall of the box 1 at the bottom of the anti-accidental touch button structure 51 lights up, indicating that the alarm has been triggered. After the alarm is completed, release the outer shell 511. The anti-accidental touch spring 515 sleeved on the outside of the terminal 514 resets, driving the terminal 514 to disengage from the alarm circuit to avoid continuous occupation of the channel.

[0033] If the external power supply is interrupted, the backup battery in the backup battery compartment 4 can power the equipment, restore the emergency power supply of the device, and ensure the continuous operation of the core functions of the device. Example 3

[0034] The specific usage method of this device is as follows: 1. Power-on self-test process: After the device is powered on, the main control module automatically detects three key states: (1) Whether the Beidou antenna signal meets the standard. If the signal meets the standard, the display and control unit displays a green light. If the signal does not meet the standard, the display and control unit displays a red light. (2) Whether the external power supply is normal. If the external power supply is normal, the external power supply indicator light of the display and control unit is on. If the external power supply is abnormal, the external power supply indicator light of the display and control unit is off. (3) Whether the anti-accidental touch button is not triggered. If it is triggered, the alarm sending indicator light is on. If it is not triggered, the alarm sending indicator light is off. 2. Automatic signal adjustment process: The Beidou signal-motor linkage submodule detects the signal in real time. When the signal is weak, it automatically sends a command to the electric push rod 84 in the signal adjustment unit 8. The electric push rod 84 starts and adjusts the position of the A330 Beidou antenna 83 until the signal reaches the standard or the A330 Beidou antenna 83 rises to its maximum stroke. The electric push rod 84 then stops automatically.

[0035] 3. Automatic power switching process: The automatic power switching submodule detects the external power supply voltage in real time. When the external power supply is abnormal, it automatically disconnects the external power supply and connects the backup battery circuit. The display and control unit will then switch to the backup power indicator light to avoid power outages and delays in emergencies.

[0036] 4. Distress Alarm Procedure: The user opens the protective cover 52, rotates the anti-accidental touch button structure 51, and then presses the anti-accidental touch button structure 51 to trigger the alarm. After the alarm automatic triggering submodule detects the signal, it automatically obtains the real-time location from the A330 antenna and generates a simplified message, which includes the time and location of the distress. The message is sent via Beidou short message, and the alarm transmission indicator light on the display and control unit illuminates. If a rescue receipt is received, the alarm confirmation indicator light on the display and control unit illuminates. The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The various components mentioned in this 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A distress alarm device based on the BeiDou navigation system, characterized in that, The device includes a housing, a connecting plate, a display and control unit, a spare battery compartment, an alarm unit, a module unit, mounting ears, an adjustment signal unit, shock-absorbing legs, and a controller unit. The shock-absorbing legs are fixedly connected to the four corners of the bottom of the housing. A connecting plate is welded to the upper part of the front side wall of the housing, and a T-shaped protrusion is provided on the connecting plate. A T-shaped groove is provided on the back of the display and control unit. The connecting plate and the display and control unit are slidably and detachably connected. A through groove is opened in the lower part of the front side wall of the housing, and a slide rail is provided on the side wall of the through groove. The spare battery compartment is slidably connected within the through groove. The alarm unit and the module unit are located on the left side wall of the housing. Mounting ears are fixedly connected to the rear side wall of the housing by bolts. A top plate is hinged to the top of the housing, and an adjustment signal unit is fixedly connected to the top plate by a flange. The controller unit is located in an independent cavity inside the housing.

2. The distress alarm device based on the BeiDou navigation system according to claim 1, characterized in that, The alarm unit includes an anti-accidental touch button structure, a protective cover, and an indicator light. The anti-accidental touch button structure is fixedly connected to the left side wall of the enclosure. The outer wall of the anti-accidental touch button structure is fitted with a protective cover, which is fixedly connected to the left side wall of the enclosure. An indicator light is provided at the bottom of the anti-accidental touch button structure, and the indicator light is fixedly connected to the left side wall of the enclosure.

3. A distress alarm device based on the BeiDou navigation system according to claim 2, characterized in that, The anti-accidental touch button structure includes a housing, a fixing post, a limiting post, a wiring post, an anti-accidental touch spring, and a limiting plate. One side of the limiting plate is fixedly connected to the side wall of the housing, and the other side of the limiting plate contacts the inner wall of the housing. The fixing post is fixedly connected to the inner wall of the housing. Two limiting posts are horizontally welded on the fixing post. The wiring post is fixedly connected to the other end of the fixing post. An anti-accidental touch spring is sleeved on the outside of the wiring post. One side of the anti-accidental touch spring is fixed to the fixing post, and the other side of the anti-accidental touch spring is fixed to the inner wall of the limiting plate.

4. A distress alarm device based on the BeiDou navigation system according to claim 1, characterized in that, The module unit includes a module structure and a protective cover. The module structure is installed on the left side wall of the housing, and the protective cover is installed outside the module interface.

5. A distress alarm device based on the BeiDou navigation system according to claim 1, characterized in that, The adjustment signal unit includes a fixed base, a telescopic cylinder, an A330 Beidou antenna, and an electric push rod. The fixed base is fixed to the top plate of the housing by a flange. The telescopic cylinder is fixedly connected to the top of the fixed base. The A330 Beidou antenna is connected to the top of the telescopic cylinder by a thread. An electric push rod is installed inside the telescopic cylinder. The bottom of the electric push rod is fixed to the fixed base.

6. A distress alarm device based on the BeiDou navigation system according to claim 1, characterized in that, The shock-absorbing leg unit includes a telescopic rod, a spring, a base, and a rubber pad. The top of the telescopic rod is fixed to the bottom of the housing, the spring is installed inside the telescopic rod, the bottom of the telescopic rod is fixedly connected to the base, and the bottom of the base is fixedly connected to the rubber pad.

7. A distress alarm device based on the BeiDou navigation system according to claim 1, characterized in that, The controller unit includes a main control module, a Beidou signal-motor linkage submodule, an automatic power switching submodule, and an automatic alarm triggering submodule. The main control module is electrically connected to the Beidou signal-motor linkage submodule, the automatic power switching submodule, and the automatic alarm triggering submodule, respectively.

8. A distress alarm device and method of use based on the BeiDou Navigation Satellite System, comprising using the distress alarm device based on the BeiDou Navigation Satellite System as described in any one of claims 1-7, characterized in that, Includes the following steps: (1) Power-on self-test steps: After the device is powered on, the main control module detects the Beidou antenna signal, the status of the external power supply and the trigger status of the anti-accidental touch button. The display and control unit provides feedback on whether each status is normal through the corresponding indicator lights. (2) Automatic signal adjustment steps: The Beidou-motor linkage submodule detects the Beidou signal in real time. When the signal is weak, the electric push rod adjusts the position of the A330 Beidou antenna until the signal reaches the standard or the antenna is raised to the maximum stroke and the motor stops. (3) Automatic power switching steps: The automatic power switching submodule detects the external power supply voltage. If it is abnormal, it disconnects the external power supply and connects the backup battery circuit. The display and control unit switches to the backup power indicator light simultaneously. (4) Distress alarm procedure: After the user triggers the anti-accidental touch button, the alarm automatically triggers the sub-module to obtain the real-time location and generate a simple message containing the distress time and location. The message is sent via Beidou short message. The display and control unit provides feedback on the alarm sending status. After receiving the rescue receipt, the alarm confirmation indicator light is lit.

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