A position information transmission device, method, and rescue system

Abstract

The present application provides a position information transmission device, method and rescue system, the device comprises a positioning unit for obtaining current position information; narrowband communication unit for establishing a communication link with the command terminal of the command center, sending the current position information to the command terminal of the command center through the communication link, and receiving the feedback information sent by the command terminal of the command center; the optical display unit is electrically connected with the narrowband communication unit and emits visible light, and the communication state between the narrowband communication unit and the command terminal can be displayed; the driving unit is used for pushing the position information transmission device to the air; the hovering unit is used for providing resistance during the falling of the position information transmission device, prolonging the falling time of the position transmission device. The present application can overcome the terrain obstacles and implement emergency rescue more quickly.

Description

Technical Field

[0001] The present application relates to the field of emergency rescue, and in particular to a location information transmission device, method and rescue system. Background Art

[0002] During emergency rescue operations, rapid communication with the outside world to quickly inform the outside world of one's location and situation is essential for rapid rescue. Currently, the main methods used in emergency rescue include satellite short message communication and ground-based narrowband communication. Satellite short message communication uses a satellite communication transmitter to send a short message signal, which is then decoded by a receiver in the backend to detect the distress signal. While satellite short message communication equipment can provide long-range communication coverage, its communication link is significantly affected by factors such as weather and terrain. In complex terrain, especially dense forests or towering mountains, satellite signals often struggle to transmit reliably, leading to communication failures. Furthermore, satellite short message communication is inefficient, and the communication system requires complex installation and operation. Ground-based narrowband communication utilizes ground-based narrowband communication technology, transmitting through ground base stations. This method is often used for longer-distance communication, but its transmission range and stability are significantly limited in dense vegetation or complex terrain. There are currently some positioning and distress call devices on the market, but most of them rely on ground base stations or limited satellite signals, and still suffer from the aforementioned drawbacks. Summary of the Invention

[0003] In order to solve one of the above technical problems, the present invention provides a location information transmission device, method and rescue system.

[0004] A first aspect of an embodiment of the present invention provides a device for transmitting location information, the device comprising:

[0005] The housing internally carries a positioning unit, a narrowband communication unit, an optical display unit, a driving unit, a hovering unit, and a power supply unit;

[0006] A positioning unit, used to obtain current location information;

[0007] a narrowband communication unit, configured to establish a communication link with a command terminal of a command center, send the current location information to the command terminal of the command center via the communication link, and receive feedback information sent by the command terminal of the command center;

[0008] an optical display unit electrically connected to the narrowband communication unit to emit visible light, the optical display unit being configured with a plurality of first optical display modes, each of the first optical display modes corresponding to a communication state between the narrowband communication unit and a command terminal of the command center;

[0009] a driving unit configured to push the position information transmitting device into the air;

[0010] a hovering unit configured to provide resistance to the position information transmitting device during the falling process, and prolong the falling time of the position information transmitting device;

[0011] a power supply unit configured to supply power to the positioning unit, the narrowband communication unit, the optical display unit, the driving unit and the hovering unit.

[0012] Preferably, the narrowband communication unit is further configured to receive interpretation information sent by an external handheld terminal, package and encrypt the current position information and the interpretation information, and send them to a command terminal of the command center, and receive feedback information sent by the command terminal of the command center and decrypt and send them to the external handheld terminal.

[0013] Preferably, the optical display unit comprises a plurality of LED lamp beads, the plurality of LED lamp beads emit visible light, and the plurality of LED lamp beads are arranged in a matrix.

[0014] Preferably, the driving unit comprises a jet component, the jet component is internally provided with compressed gas, the compressed gas is released to expand to generate thrust, and the thrust pushes the position information transmitting device to move in the air.

[0015] Preferably, the hovering unit comprises a parachute component, the parachute component is deployed when the position information transmitting device reaches a predetermined height, and the parachute component provides resistance to the position information transmitting device during the falling process.

[0016] Preferably, the power supply unit is a rechargeable battery or a disposable dry battery which is detachably arranged.

[0017] Preferably, the position information transmitting device further comprises a triggering unit and a control unit, the triggering unit is electrically connected to the control unit, the control unit is electrically connected to the optical display unit, the driving unit and the hovering unit, the triggering unit receives a first triggering instruction and sends it to the control unit, the control unit controls the driving unit to push the position information transmitting device into the air in response to the first triggering instruction, controls the driving unit to stop when the position information transmitting device reaches a predetermined height, and controls the hovering unit to work at the same time, the triggering unit receives a second triggering instruction and sends it to the control unit, the optical display unit is further configured with a plurality of second optical display modes, and the control unit controls the optical display unit to present a second optical display mode corresponding to the triggering instruction in response to the second triggering instruction.

[0018] The second aspect of the embodiment of the present application provides a rescue system, the system comprising a handheld terminal, a command terminal and the position information transmitting device of the first aspect of the embodiment of the present application, the handheld terminal being wirelessly connected with the position information transmitting device, the command terminal being arranged in a command center, and the position information transmitting device and the command terminal establishing a communication link through the narrowband communication unit.

[0019] The third aspect of the embodiment of the present application provides a position information transmitting method, the method being applied in the position information transmitting device of the first aspect of the embodiment of the present application, and the method comprising:

[0020] The positioning unit acquires current position information and sends the current position information to the narrowband communication unit;

[0021] The driving unit is started, and the position information transmitting device is sent to the air, and when the position information transmitting device reaches the highest point, the hovering unit is started;

[0022] During the ascending and descending of the position information transmitting device, the narrowband communication unit establishes a communication link with the command terminal of the command center, and the communication state between the narrowband communication unit and the command terminal of the command center is displayed through the optical display unit;

[0023] When the communication link between the narrowband communication unit and the command terminal of the command center is successfully established, the narrowband communication unit sends the current position information to the command terminal of the command center and receives feedback information of the command terminal of the command center.

[0024] Preferably, the method further comprises:

[0025] The narrowband communication unit receives the interpretation information sent by the external handheld terminal, and sends the current position information and the interpretation information to the command terminal of the command center after being packaged and encrypted.

[0026] The present application has the following beneficial effects: in the present application, the positioning unit acquires current position information, and the narrowband communication unit is used to establish a communication link with the command terminal of the command center in the air to avoid complex and changeable ground environment, and to communicate with the command center in the relatively more open air, so as to overcome the terrain obstacles and more quickly implement emergency rescue. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application in any way. In the drawings:

[0028] Figure 1 FIG. 1 is a structural schematic diagram of the position information transmitting device according to the first aspect of the embodiment of the present application.

[0029] Figure 2 This is a schematic diagram showing the principle of the position information transmission device according to Example 1 of the present invention;

[0030] Figure 3 This is another schematic diagram of the principle of the position information transmission device according to Example 1 of the present invention;

[0031] Figure 4 This is a schematic diagram of the principle of the rescue system according to Example 2 of the present invention;

[0032] Figure 5 This is a flowchart of the location information transmission method described in Example 3 of the present invention. DETAILED DESCRIPTION

[0033] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0034] Example 1

[0035] like Figure 1 and Figure 2 As shown, this embodiment provides a position information transmission device that can be used in emergency rescue scenarios with complex terrain. The position information transmission device includes a positioning unit, a narrowband communication unit, an optical display unit, a drive unit, a hovering unit, and a power supply unit. The positioning unit, narrowband communication unit, optical display unit, drive unit, hovering unit, and power supply unit are all centrally disposed within a housing.

[0036] Specifically, in this embodiment, the housing serves as a bearing component and can effectively protect the positioning unit, narrowband communication unit, optical display unit, driving unit, hovering unit, and power supply unit deployed therein.

[0037] The positioning unit is highly accurate, supports satellite positioning systems, and features compatible real-time differential positioning, providing sub-meter accuracy and making it suitable for emergency positioning and search and rescue operations. It can be implemented using either a GPS chip or a Beidou chip. After receiving satellite signals, the positioning unit calculates the current location in real time, including geographic parameters such as longitude, latitude, and altitude that characterize the current position. This current location information is encoded into a digital signal and transmitted externally via the narrowband communication unit.

[0038] The narrowband communication unit can be implemented using low-power wide area network (LPWAN) technology, offering a long signal transmission distance of several kilometers to over ten kilometers. In this embodiment, the narrowband communication unit supports spectrum adaptation technology, automatically adjusting the operating frequency band in varying signal environments to ensure stable signal transmission. Furthermore, the narrowband communication unit features bidirectional communication capabilities, enabling it to not only transmit signals but also receive feedback from the command terminal at the command center. The narrowband communication unit is electrically connected to the positioning unit via a data interface to receive the current location information sent by the positioning unit and organize it into data packets. When the location information transmission device is airborne, the narrowband communication unit can establish a communication link with the command terminal at the command center. Data packets containing the current location information can be continuously transmitted to the command terminal via this communication link using low-power communication, ensuring smooth transmission even in areas without traditional communication infrastructure. After transmitting the current location information to the command terminal, the narrowband communication unit awaits confirmation from the command terminal, which is then fed back to the narrowband communication unit via the same communication link.

[0039] The optical display unit is electrically connected to the narrowband communication unit, and a plurality of first optical display modes are configured in the optical display unit to characterize different working states of the narrowband communication unit. The plurality of first optical display modes can be distinguished and set by means of color change, brightness change or flashing frequency change. For example, when the first optical display mode is always on, it indicates that the communication link between the narrowband communication unit and the command terminal is successfully established; when the first optical display mode is flashing, it indicates that the communication link between the narrowband communication unit and the command terminal is being established; when the first optical display mode is red, it indicates that a rescue signal has been sent and is waiting for feedback; when the first optical display mode is green, it indicates that a feedback signal from the command terminal has been received. The above optical display modes of the optical display unit are only examples for ease of understanding. The specific optical display mode can be determined according to the actual scenario, and this embodiment does not make any special restrictions.

[0040] The drive unit serves as a driving component of the position information transmission device and plays a driving role. The drive unit can be set at the tail of the position information transmission device and can generate sufficient lift-off thrust to enable the position information transmission device to break through obstacles such as trees, bushes or buildings on the ground and rise into the air. In this embodiment, the lift-off height of the position information transmission device may vary depending on different environments. Therefore, this embodiment can set the lift-off height of the position information transmission device in advance. When the position information transmission device reaches the predetermined height, the drive unit stops working and the position information transmission device enters the descent process. Of course, it is also possible to wait for the fuel inside the drive unit to be naturally exhausted. The specific details depend on the actual on-site environment and are not specifically limited in this embodiment.

[0041] The suspension unit is used to provide resistance during the falling process of the position information transmission device, prolong the falling time of the position information transmission device, and gain time for communication between the position information transmission device and the command terminal.

[0042] The power supply unit is capable of powering the aforementioned positioning unit, narrowband communication unit, optical display unit, drive unit, and hovering unit. This power supply duration must be greater than the time the location information transmission device remains airborne to ensure stable signal transmission. Battery specifications are selected based on the communication frequency, operating mode, and the time difference between launch and landing. Furthermore, after the location information transmission device lands on the ground, the positioning unit can continue to transmit location information via the narrowband communication unit, facilitating its recovery and reuse.

[0043] In actual use, the location information transmission device proposed in this embodiment requires rescuers to carry the device. As the rescuer moves, the positioning unit automatically and continuously acquires current location information. It can obtain data such as longitude, latitude, altitude, or timestamp in real time through GPS, Beidou, or ground-based wireless grid positioning technology. This data is then used to generate and store a standard-formatted distress signal data packet, which is then transmitted via the narrowband communication unit. When a distress signal needs to be transmitted, the drive unit is activated, launching the location information transmission device into the air. After the location information transmission device reaches a predetermined altitude, the drive unit stops operating and the hovering unit is activated, allowing the location information transmission device to slowly and steadily descend. This typically takes several minutes to ensure that the narrowband communication unit can establish a communication link with the command terminal and effectively transmit signals. During this process, the optical display unit serves as a visible light source signal, allowing the command center to intuitively view the current distress location. It also serves as a status signal indicating whether the communication link between the narrowband communication unit and the command terminal has been successfully established, allowing rescuers to determine whether signal transmission has been completed and proceed with the next rescue action. When the narrowband communication unit receives the feedback signal from the command terminal, the rescuers can proceed with the next rescue plan. At the same time, they wait for the location information transmission device to land on the ground and perform operations such as recovering, maintaining, or replacing the location information transmission device based on the current location information sent by the positioning unit.

[0044] The position information transmission device proposed in this embodiment breaks the coverage limitations of ground equipment by pushing the device into the air and allowing it to remain in the air, ensuring that the communication signal can be effectively and stably transmitted to the command terminal. Especially in environments with complex terrain and difficult signal coverage, such as forests or mountainous areas, the position information transmission device of this embodiment can also stably transmit distress signals, enabling the command center to quickly confirm the exact location of rescuers and reduce delays caused by the failure of traditional communication means. At the same time, the signal feedback mechanism between the position information transmission device and the command terminal can promptly confirm whether the signal has been successfully transmitted, avoiding mistransmission or omission. The position information transmission device of this embodiment adopts an integrated design and is extremely portable. Rescuers only need to perform simple operations to master it.

[0045] In some optional embodiments, the narrowband communication unit can also wirelessly communicate with an external handheld terminal to achieve effective communication of information.

[0046] Specifically, rescuers can use a handheld terminal and wirelessly connect the handheld terminal to the narrowband communication unit of the location information transmission device. Rescuers can edit the current rescue conditions or surrounding environment information on the handheld terminal, such as a brief description of emergency situations such as fires and landslides, and organize the above information into explanatory information and send it to the narrowband communication unit. The narrowband communication unit then packages and encrypts it together with the current location information and sends it to the command terminal of the command center. This allows the command center to have a more comprehensive understanding of the rescue environment so that it can make a more reliable rescue plan. In addition, after the command center makes a rescue plan based on the above explanatory information and location information, it can also send the rescue plan to the location information transmission device, which is then decrypted by the narrowband communication unit and sent to the handheld terminal. At this time, rescuers can also carry out rescue according to the rescue plan of the command center.

[0047] In some optional embodiments, the optical display unit may be implemented using high-brightness LED lamp beads.

[0048] Specifically, in this embodiment, the optical display unit is composed of a plurality of LED lamp beads to form a high-brightness optical display area. The plurality of LED lamp beads can be arranged in a matrix type, and can be specifically arranged in the head area or the surrounding area of ​​the position information transmission device, so that the light emission and changes of the optical display unit can be visually observed. In the area where the optical display unit is set, the adjacent shell can be designed to be transparent so that the light emission and changes of the optical display unit can be observed from the outside. Of course, the optical display unit can also be set independently of the external arrangement of the shell, and this embodiment does not make special limitations. In addition, the optical display unit needs to be encapsulated to achieve waterproof and dustproof effects to adapt to harsh environments.

[0049] In some optional embodiments, the driving unit is implemented using a jet-type emission method.

[0050] Specifically, in the embodiment, the driving unit comprises a jet assembly, and compressed air is arranged in the jet assembly. The compressed air can be carbon dioxide or other gas. The driving unit can generate sufficient lift force to ensure that the position information transmitting device breaks through the ground obstacles and quickly ascends. After the driving unit is started, the compressed air is released to expand and quickly push the position information transmitting device to ascend. In the embodiment, the jet assembly of the driving unit adopts an ejection mechanism and a light-weight high-strength material to ensure the safe launching of the position information transmitting device and avoid the safety hazards caused by the traditional gunpowder launching, thereby greatly improving the safety and reliability of the position information transmitting device and reducing the risk of accidents. When the position information transmitting device reaches the predetermined height, the driving unit stops working.

[0051] In some optional embodiments, the hovering unit is implemented by using the principle of a parachute.

[0052] Specifically, in the embodiment, the hovering unit comprises a parachute assembly, and the parachute assembly is made of high-strength light-weight material, such as nylon or polyester fiber, and has good wind resistance and tear resistance. When the position information transmitting device reaches the predetermined height, the hovering unit can be started. The diameter and the unfolding area of the parachute can be set according to actual conditions, and on the basis of effectively slowing down the falling speed of the position information transmitting device and prolonging the hovering time of the position information transmitting device, the safe landing of the position information transmitting device is ensured.

[0053] In some optional embodiments, the power supply unit is implemented by using a rechargeable battery or a detachable disposable dry battery, which is convenient for reuse or quick replacement.

[0054] In some optional embodiments, as shown in Figure 3 The position information transmitting device further comprises a triggering unit and a control unit. The triggering unit is used to trigger the starting of the position information transmitting device, and the control unit is used to control the ascending and landing of the position information transmitting device.

[0055] Specifically, in the embodiment, the triggering unit is an element that can be controlled to start by the outside, such as a button. When the rescue personnel need to launch the position information transmitting device to ascend, they only need to press the triggering unit. The triggering unit converts the triggering action into a first triggering instruction and sends the first triggering instruction to the control unit. The control unit responds to the first triggering instruction and controls the driving unit to push the position information transmitting device into the air. When the position information transmitting device reaches the predetermined height, the driving unit can be controlled to stop working, and the hovering unit can be controlled to work to prolong the hovering time of the position information transmitting device and safely land.

[0056] In some optional embodiments, the triggering unit and the control unit can also be linked with the optical display unit.

[0057] Specifically, while the rescue personnel is triggering the position information transmitting device, the display state of the optical display unit can be adjusted to visually display the current rescue situation. In this embodiment, the optical display unit is further configured with a plurality of second optical display modes. The second optical display modes can be distinguished from the first optical display modes in color, brightness or flickering frequency. When the rescue personnel triggers the triggering unit, the triggering can be performed in a manner different from the above-mentioned manner of triggering the position information transmitting device to ascend. For example, the rescue personnel can select a long press manner when triggering the position information transmitting device to ascend, and a short press manner when triggering the optical display unit to switch between the second optical display modes. Then, when the rescue personnel short presses the triggering unit, the triggering unit generates a second triggering instruction and sends it to the control unit. The control unit responds to the triggering instruction to control the optical display unit to switch the second optical display mode. In this embodiment, the second optical display modes are exemplified by red and yellow. When the optical display unit displays red, it means that the situation is particularly urgent, and the rescue priority is the highest. When the optical display unit displays yellow, it means that the situation is slightly urgent, but the priority is lower than red. In addition, the red or yellow can also be represented by the number of short presses. For example, two quick short presses correspond to red, and one quick short press corresponds to yellow. Of course, the above is only an example, and the specific mode definition and selection can be determined according to actual conditions.

[0058] In some optional embodiments, a triggering start interface can also be provided on the handheld terminal of the rescue personnel, and the triggering unit can be remotely controlled by clicking the relevant icon on the triggering start interface.

[0059] Embodiment 2

[0060] As shown in Figure 4 , this embodiment proposes a rescue system, which includes a handheld terminal, a command terminal and a position information transmitting device. The handheld terminal and the position information transmitting device are carried by the rescue personnel together into the rescue site. The command terminal can be configured in the command center. The specific structure and working principle of the position information transmitting device can refer to the content recorded in Embodiment 1, and this embodiment will not be described in detail.

[0061] Embodiment 3

[0062] As shown in Figure 5 , this embodiment proposes a position information transmitting method, which can be applied to the position information transmitting device proposed in Embodiment 1. The method includes:

[0063] S101, the positioning unit acquires current position information and sends the current position information to the narrowband communication unit.

[0064] Specifically, once rescuers enter the scene carrying a location information transmission device, the positioning unit will automatically and continuously obtain the current location information, not just when calling for help. Using satellite positioning systems (such as GPS or Beidou), real-time positioning can be achieved, providing data such as latitude and longitude, altitude, or current time.

[0065] S102, start the driving unit to send the position information transmission device into the air, and when the position information transmission device reaches the highest point, start the hovering unit.

[0066] Specifically, rescuers can activate the drive unit to push the location information transmission device into the air. Optionally, the drive unit can be activated by a trigger unit such as a button or a trigger. Different operating methods of the trigger unit can also be given different interpretations. For example, if it is activated after pressing it twice quickly, it means that the situation is particularly urgent, someone is injured or in distress and needs assistance as soon as possible, or a drone needs to be dispatched to quickly assist in the search. At this time, the optical display unit will also light up red accordingly; pressing it once quickly means that the situation is urgent, but the priority is not the highest, and the corresponding optical display unit will be displayed in yellow.

[0067] S103: During the ascent and descent of the position information transmitting device, the narrowband communication unit establishes a communication link with the command terminal of the command center, and displays the communication status between the narrowband communication unit and the command terminal of the command center through the optical display unit.

[0068] Specifically, the location information transmission device is lifted into the air by the drive unit and begins to hover. The process from initial ascent to final descent typically takes several minutes. Upon reaching a predetermined altitude, the hovering unit automatically deploys, allowing for a slow descent. During the ascent and descent, the narrowband communication unit maintains a continuous communication link with the command center's command terminal.

[0069] S104: When the communication link between the narrowband communication unit and the command terminal of the command center is successfully established, the narrowband communication unit sends the current location information to the command terminal of the command center and receives feedback information from the command terminal of the command center.

[0070] Specifically, when the communication link between the narrowband communication unit and the command terminal of the command center is successfully established, the narrowband communication unit will transmit a signal to the command terminal. At the same time, the optical display unit will also display the status of the narrowband communication unit in different colors, different brightness or different flashing frequencies.

[0071] After the signal is received by the command terminal of the command center, the current position of the rescue personnel is confirmed, and the confirmation information is fed back to the position information transmitting device through the same narrowband communication link, and information transmission can be further carried out between the narrowband communication unit and the handheld terminal carried by the rescue personnel. Through this feedback mechanism, the rescue personnel can obtain the confirmation of the command center and know that their request for help has been received and is being processed.

[0072] After the transmission and feedback of the signal are completed, the position information transmitting device finally lands on the ground and can be recovered.

[0073] In addition, for more complex information such as rescue requests and environmental information (such as descriptions of emergency situations such as fires, landslides, etc.), the position information transmitting device also synchronizes information with the handheld terminal at the scene at regular intervals or manually, so as to send it uniformly when needed.

[0074] The application of the position information transmitting device proposed in the present application in the field of emergency rescue will be described in more detail below through two specific examples.

[0075] Example 1: Forest fire emergency rescue

[0076] Background: When a forest fire occurs, it often causes large areas of vegetation to be burned, and the fire smoke and complex terrain in the forest often make traditional communication means unable to work normally. In this case, the positioning of the rescue personnel and the transmission of the distress signal become the main problem.

[0077] Application process:

[0078] (1) Device carrying and starting

[0079] After the rescue personnel receive the rescue task, they carry the position information transmitting device into the fire scene. Once in the fire area, the rescue personnel start the position information transmitting device. At the same time of starting, the positioning unit automatically acquires the current position information through the GPS or Beidou satellite system, and encodes the current position information and the time stamp, ready to send to the command center.

[0080] (2) Device launching and hovering

[0081] The rescue personnel start the driving unit, and the driving unit pushes the position information transmitting device to ascend quickly. This rapid ascent can effectively overcome the influence of smoke in the fire area or atmospheric disturbance, so that the position information transmitting device breaks through the signal barrier at low altitude.

[0082] When the position information transmission device rises to a predetermined height (such as 300 meters or higher), it starts to open the hovering unit to stabilize the hovering. The hovering time is usually several minutes. During the hovering period, the narrowband communication unit establishes a communication link with the command terminal of the command center to transmit data packets including current position information, distress signals, current status of the rescue personnel or environmental information. During this process, the optical display unit provides a visible light source signal, and indicates the rescue personnel's distress call and the working status of the narrowband communication unit through different optical display modes (such as different colors, brightness or flashing frequencies).

[0083] (3) Signal transmission and feedback

[0084] While airborne, the location information transmitter transmits its current location and other distress information to the command terminal in real time via a narrowband communication unit. Because the location information transmitter is airborne and the signal is unaffected by obstacles such as trees and smoke, the signal transmission success rate is greatly improved.

[0085] After the command terminal of the command center receives the signal, the command center can confirm the location of the rescue personnel and provide feedback to the location information transmission device through a narrowband communication link.

[0086] (4) Landing and subsequent processing

[0087] After the signal is successfully transmitted and feedback is received, the location information transmission device slowly and safely descends to the ground via the suspension unit for recovery. After receiving the feedback, the rescuers will continue to follow the instructions of the command center to ensure an efficient and orderly rescue.

[0088] Case 2: Emergency rescue after an earthquake in a mountainous area

[0089] Background: When an earthquake strikes a mountainous area, landslides, collapsed buildings, and damage to power and communication infrastructure can cause ground communication networks to fail, cutting off contact between rescuers and command centers. In such cases, relying on traditional communication equipment may not be able to promptly locate trapped people.

[0090] Application Process:

[0091] (1) Carrying and starting the device

[0092] After an earthquake strikes, rescue workers enter the mountainous disaster area carrying location information transmitters. Once in the earthquake zone, they activate the location information transmitter. The positioning unit automatically acquires the current location information via GPS or the Beidou satellite system, encodes the current location information and a timestamp, and prepares to transmit it to the command center.

[0093] (2) Launch and hovering of the device

[0094] The rescue personnel start the driving unit, which pushes the position information transmission device to ascend rapidly. The position information transmission device can break through obstacles such as mountains and valleys and reach a relatively open hovering height (for example, 300 meters or higher). After reaching the hovering height, the hovering unit is opened to stabilize the hovering. The hovering time is usually a few minutes. During the hovering, the narrowband communication unit establishes a communication link with the command terminal of the command center to transmit data packets including the current position information, the distress signal, the current situation or environmental information of the rescue personnel, and the like. In this process, the optical display unit provides a visible light source signal to indicate the meaning of the distress signal of the rescue personnel and the working state of the narrowband communication unit through different optical display modes (such as different colors, brightness, or flashing frequencies).

[0095] (3) Signal transmission and feedback

[0096] During the hovering process, the position information transmission device transmits the current position information and other distress information to the command terminal in real time through the narrowband communication unit. The command center can determine the rescue priority according to the signal content and inform the on-site rescue personnel through the feedback mechanism.

[0097] (4) Landing and subsequent processing

[0098] After the signal is successfully transmitted and feedback confirmation is received, the position information transmission device slowly and safely lands on the ground through the hovering unit for recycling. After receiving the feedback, the rescue personnel continue to take further actions according to the instructions of the command center to ensure efficient and orderly rescue.

[0099] Through the above two examples, it can be seen that the present application can effectively transmit position information and obtain effective distress feedback in different types of complex environments. The main difference between the two lies in the different application scenarios and the specific impact of the terrain and climate conditions on the use of the position information transmission device.

[0100] The main challenge in forest fires is the obstruction of smoke and vegetation, and the focus is on the position information transmission device that can break through low-altitude obstacles to achieve stable signal transmission. The challenge in mountain earthquakes is the obstruction of mountains and complex canyon terrain, and the focus is on the position information transmission device that can provide stable signal transmission at a long distance in high mountains and complex terrain, and the hovering time is long enough to ensure transmission completion.

[0101] In addition, the position information transmission device proposed by the present application not only can transmit position information, but also the optical display unit of the visible light source can provide visible light distress and lighting functions. Therefore, the position information transmission device proposed by the present application can also be used as an electronic torch with narrowband self-organizing network communication function for visible light distress, lighting, and communication.

[0102] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A position information transmission device, characterized in that: The device comprises: The housing internally carries a positioning unit, a narrowband communication unit, an optical display unit, a driving unit, a hovering unit, and a power supply unit; A positioning unit, used to obtain current location information; a narrowband communication unit, configured to establish a communication link with a command terminal of a command center, send the current location information to the command terminal of the command center via the communication link, and receive feedback information sent by the command terminal of the command center; an optical display unit electrically connected to the narrowband communication unit and emitting visible light, the optical display unit being configured with a plurality of first optical display modes, each of the first optical display modes corresponding to a communication state between the narrowband communication unit and a command terminal of the command center; A driving unit, configured to push the position information transmitting device into the air; A suspension unit, configured to provide resistance during the falling process of the position information transmitting device, thereby extending the falling time of the position information transmitting device; A power supply unit is used to supply power to the positioning unit, the narrowband communication unit, the optical display unit, the driving unit and the hovering unit.

2. The position information transmission device according to claim 1, characterized in that The narrowband communication unit is also used to receive interpretation information sent by an external handheld terminal. The narrowband communication unit packages the current location information and the interpretation information, encrypts them, and sends them to the command terminal of the command center, and receives feedback information sent by the command terminal of the command center, decrypts it, and sends it to the external handheld terminal.

3. The position information transmitting device according to claim 1, wherein: The optical display unit includes a plurality of LED lamp beads, which emit visible light and are arranged in a matrix.

4. The position information transmitting device according to claim 1, wherein: The driving unit includes a jet assembly, in which compressed gas is installed. The compressed gas is released and expanded to generate thrust, thereby driving the position information transmission device to move in the air.

5. The position information transmitting device according to claim 1, wherein: The suspension unit includes a parachute assembly, which is deployed when the position information transmitting device reaches a predetermined height. During the falling process of the position information transmitting device, the parachute assembly provides resistance for the position information transmitting device.

6. The position information transmitting device according to claim 1, wherein: The power supply unit is a rechargeable battery or a detachable disposable dry cell.

7. The position information transmitting device according to claim 1, characterized in that: The position information transmission device also includes a trigger unit and a control unit, wherein the trigger unit is electrically connected to the control unit, and the control unit is electrically connected to the optical display unit, the driving unit and the hovering unit respectively. The trigger unit receives a first trigger instruction and sends it to the control unit. The control unit controls the driving unit to push the position information transmission device into the air in response to the first trigger instruction, and controls the driving unit to stop when the position information transmission device reaches a predetermined height, and controls the hovering unit to work at the same time. The trigger unit receives a second trigger instruction and sends it to the control unit. The optical display unit is also configured with multiple second optical display modes. The control unit controls the optical display unit to present a second optical display mode corresponding to the trigger instruction in response to the second trigger instruction.

8. A rescue system, characterized in that: The rescue system includes a handheld terminal, a command terminal and the position information transmission device described in any one of claims 1 to 7, the handheld terminal is wirelessly connected to the position information transmission device, the command terminal is configured in a command center, and the position information transmission device and the command terminal establish a communication link through the narrowband communication unit.

9. The method for transmitting position information according to any one of claims 1 to 7, wherein: The method comprises: The positioning unit obtains current position information and sends the current position information to the narrowband communication unit; activating the driving unit to send the position information transmitting device into the air, and activating the airborne unit when the position information transmitting device reaches the highest point; During the ascent and descent of the position information transmitting device, the narrowband communication unit establishes a communication link with the command terminal of the command center, and displays the communication status between the narrowband communication unit and the command terminal of the command center through the optical display unit; When the communication link between the narrowband communication unit and the command terminal of the command center is successfully established, the narrowband communication unit sends the current location information to the command terminal of the command center and receives feedback information from the command terminal of the command center.

10. The method for transmitting location information according to claim 9, wherein: The method further comprises: The narrowband communication unit receives the interpretation information sent by the external handheld terminal, and packages the current position information and the interpretation information, encrypts them, and then sends them to the command terminal of the command center.

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