Device with falling-into-water alarm function and falling-into-water alarm communication method

Abstract

The invention relates to a device with a falling-into-water alarm function and a falling-into-water alarm communication method. The method mainly comprises the steps that the current environment temperature and the battery electric quantity are collected, the alarm frequency is adaptively adjusted according to the current environment temperature and the battery electric quantity, the lower the environment temperature is, the higher the alarm frequency in the golden rescue time is, and when the golden rescue time is over, the alarm frequency is reduced to a preset value, and when the battery electric quantity is lower than a first threshold value, the alarm frequency is adjusted. The alarm frequency is directly set to be the minimum value, the power supply of the ultra-short wave alarm module is automatically cut off when the ultra-short wave alarm information is completely transmitted, the power supply of the Beidou module is automatically cut off after the Beidou module completes positioning and short message sending tasks, and the mode is automatically switched to the sleep mode when no operation is executed within a period of time. In the mode, only when the MCU unit enters a low-power-consumption state, other modules are closed. The method is beneficial for improving the rescue probability of people falling into water.

Description

Technical Field

[0001] The present invention relates to the field of drowning alarm devices, in particular to devices with drowning alarm functions and drowning alarm communication methods. Background Art

[0002] A drowning alarm device is a device that issues an alarm after a person falls into the water. Such a device generally has a Beidou alarm module and a VHF alarm module. When a person falls into the water, it can send location information and alarm information to the search and rescue party.

[0003] The existing alarm methods and alarm device designs are not reasonable enough, consume a large amount of power, and have a short working time. These factors will all reduce the probability of the drowning person being rescued. Therefore, it is necessary to develop a new alarm method and alarm device to improve the probability of the drowning person being rescued. Summary of the Invention

[0004] Based on this, a drowning alarm communication method is provided. This method is beneficial to improving the probability of the drowning person being rescued.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A drowning alarm communication method, comprising:

[0007] Collect the current ambient temperature and battery power, and adaptively adjust the alarm frequency according to the current ambient temperature and battery power. Specifically, the lower the ambient temperature, the higher the alarm frequency within the golden rescue time; the higher the ambient temperature, the lower the alarm frequency within the golden rescue time. When the golden rescue time has passed, the alarm frequency is reduced to a preset value. When the battery power is lower than the first threshold, the alarm frequency is directly set to the lowest value.

[0008] When the VHF alarm information is transmitted, the power supply of the VHF alarm module is automatically cut off. When the Beidou module completes the positioning and short message sending tasks, the power supply of the Beidou module is automatically cut off. When no operation is performed for a period of time, it automatically switches to the sleep mode. In this mode,

[0009] Only the MCU unit enters the low-power state, and other modules are all turned off.

[0010] In one embodiment, when the battery power is lower than the second threshold, the MCU unit performs auxiliary function operations, and the second threshold is less than the first threshold.

[0011] In one embodiment, the golden rescue time is determined according to the ambient temperature and the location information of the drowning person.

[0012] In one embodiment, after the person falling into the water is rescued or in a safe position, the MCU unit is triggered to perform a shutdown operation through the shutdown button.

[0013] A device with a function of alarm for falling into water, which is used to implement the operations corresponding to the above-mentioned communication method for alarm of falling into water.

[0014] It includes an MCU unit.

[0015] A Beidou alarm module, which is electrically connected to the MCU unit and has functions of Beidou positioning and short message communication.

[0016] A ultra-short wave alarm module, which is electrically connected to the MCU unit and is used to send ultra-short wave alarm information.

[0017] A temperature sensor, which is electrically connected to the MCU unit and is used to obtain the ambient temperature.

[0018] A power supply unit for power supply.

[0019] In one embodiment, the power supply unit includes a lithium battery. Sponge pads are wrapped around each vertex of the soft-pack lithium battery, and the lithium battery is a disposable soft-pack lithium manganese dioxide battery.

[0020] In one embodiment, it further includes a button for alarm of falling into water, a sensor for detecting falling into water and a shutdown button. The button for alarm of falling into water is used to trigger the MCU unit to perform a startup operation, the sensor for detecting falling into water is used to trigger the MCU unit to perform a startup operation, and the shutdown button is used to trigger the MCU unit to perform a shutdown operation.

[0021] A communication method for alarm of multiple people falling into water, which uses the above-mentioned device with a function of alarm for falling into water. When multiple people fall into water and each person is equipped with a device with a function of alarm for falling into water, each device with a function of alarm for falling into water uses a communication method of self-organized time division multiple access and communicates alternately on two channels A1 and A2. Each device with a function of alarm for falling into water selects its own time slot and independently and continuously sends alarm information.

[0022] In one embodiment, each device with a function of alarm for falling into water selects 1 to 5 time slots in each frame and sends sub-frames in one or several of these time slots, and uses the remaining time slots as standby time slots.

[0023] In one embodiment, the start and end of each frame are synchronized with the UTC time of Beidou satellites as the synchronization flag.

[0024] The beneficial effects of this application are as follows:

[0025] 1. This application first considers the environmental temperature and the golden rescue time. During the golden rescue time, when the environmental temperature is low, it means that the survival difficulty of the drowning person is relatively high. Rescue personnel need to prioritize rescuing this drowning person and quickly locate the drowning person and take rescue measures within a short time. Based on the above considerations, at this time, the alarm frequency needs to be relatively high, which is conducive to increasing the probability of rescuing the drowning person. For drowning persons in areas with a relatively high environmental temperature, rescue personnel can rescue them after rescuing the drowning persons in areas with a relatively low environmental temperature.

[0026] 2. In order to save power and enable the device to work for a long time, when the golden rescue time has passed, the alarm frequency is reduced to a preset value, that is, during the golden rescue time, the alarm frequency is relatively high, and after the golden rescue time has passed, the alarm frequency is relatively low. When the battery power is lower than the first threshold, the alarm frequency is directly set to the lowest value. And when the ultra-short wave alarm message is sent, the power supply of the ultra-short wave alarm module will be automatically cut off. When the Beidou module completes the positioning and short message sending tasks, the power supply of the Beidou module will be automatically cut off. When no operation is performed for a period of time, it will automatically switch to the sleep mode. In this mode, only the MCU unit enters the low-power state, and other modules are turned off. The alarm frequency of this application is not constant all the time, but changes with time and the environment, which can significantly increase the probability of rescuing the drowning person.

[0027] 3. When the battery power is lower than the second threshold, the MCU unit performs auxiliary function operations, and the second threshold is less than the first threshold. This allows the user-defined auxiliary functions to be completed before the device shuts down due to power exhaustion. For example, the auxiliary functions can be sending power information, positioning information, and environmental temperature, etc., or other operations defined by the user. This can expand the functions of the device of this application.

[0028] 4. After the drowning person is rescued or in a safe position, the MCU unit is triggered to perform a shutdown operation through the shutdown button. After this operation, it is convenient for rescue personnel to concentrate their manpower and material resources to rescue other drowning persons, thereby increasing the probability of rescuing other drowning persons.

[0029] 5. The sponge padding can effectively absorb and disperse external impact forces, reducing the direct damage to the battery pack caused by accidental situations such as dropping and collision. The soft characteristics of the sponge padding help to reduce the minor internal structural damage that the battery may suffer during vibration, which is beneficial for the battery to maintain a long-term stable working state. Compared with rechargeable batteries, primary batteries have a high energy density, a low self-discharge rate, and are maintenance-free during their life cycle. Therefore, they are a better battery solution for personal water alarm terminals. Primary single cells have cylindrical and soft-pack structures. Compared with cylindrical batteries, soft-pack batteries are superior to cylindrical batteries in terms of specific energy. In order to maximize the battery energy in a limited space, the battery of this application adopts a soft-packaged structure battery, which is composed of a positive electrode plate, a negative electrode plate, a separator, an electrolyte, a gelled tab, an aluminum-plastic film, etc. This application uses lithium manganese dioxide batteries, which have the advantages of high energy density, stable discharge voltage, long storage life, and wide operating temperature, and are especially suitable for use in water alarm devices.

[0030] 6. The multi-person water alarm communication method of this application solves the possible signal conflict problem caused by multiple people using the device of this application for alarm simultaneously. This is also beneficial for increasing the probability of rescuing people in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a flowchart of the water alarm communication method of the embodiment of this application.

[0032] Figure 2 It is a structural diagram of the device with a water alarm function of the embodiment of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings.

[0034] As Figure 1 shown, the first embodiment of this application provides a water alarm communication method, which includes:

[0035] Collect the current ambient temperature and battery power. The current ambient temperature can be collected through a temperature sensor, and the battery power can be achieved by using existing battery power collection methods. Adaptively adjust the alarm frequency according to the current ambient temperature and battery power. Specifically, the lower the ambient temperature, the higher the alarm frequency within the golden rescue time; the higher the ambient temperature, the lower the alarm frequency within the golden rescue time. When the golden rescue time has passed, the alarm frequency is reduced to a preset value. When the battery power is lower than the first threshold, the alarm frequency is directly set to the lowest value.

[0036] For example, if the golden rescue time is 2 hours, within these 2 hours, the lower the ambient temperature, the higher the alarm frequency. For instance, when the temperature is set between 20 - 25 degrees Celsius, the alarm goes off 4 times per hour; when it is between 15 - 19 degrees Celsius, the alarm goes off 6 times per hour; when it is between 10 - 14 degrees Celsius, the alarm goes off 8 times per hour; and when it is between 0 - 9 degrees Celsius, the alarm goes off 10 times per hour.

[0037] When the golden rescue time has passed, the alarm frequency can be reduced to a preset value, which is lower than the lowest alarm frequency during the golden rescue time. For example, the preset value is that the alarm goes off 2 times per hour.

[0038] When the battery power is lower than the first threshold, the alarm frequency is directly set to the lowest value. For example, when the battery power is lower than 35% (the first threshold), the alarm frequency is reduced to 1 time per hour.

[0039] Furthermore, when the ultra - short - wave alarm information is transmitted completely, the power supply of the ultra - short - wave alarm module is automatically cut off. When the Beidou module completes the positioning and short message sending tasks, the power supply of the Beidou module is automatically cut off. When no operation is performed for a period of time, it automatically switches to the sleep mode. In this mode, only the MCU unit enters the low - power state, and other modules are turned off.

[0040] Specifically, the above operations can save power, which is beneficial to extending the total duration of the alarm, and thus beneficial to increasing the probability of rescuing the drowning person.

[0041] In this embodiment, when the battery power is lower than the second threshold, the MCU unit performs auxiliary function operations, and the second threshold is less than the first threshold.

[0042] Specifically, the above - mentioned auxiliary function operations can be set by the user according to needs. For example, the auxiliary function operation is to send the remaining battery power information of the alarm device to the rescuers so that the rescuers can adopt corresponding rescue measures based on this information. Since there may be multiple people drowning at the same time, the drowning person with insufficient power information can be rescued first, and then the drowning person with relatively sufficient power information can be rescued. Because once the alarm device runs out of power, it will shut down, and it will be very difficult to determine the specific location of the drowning person at this time.

[0043] Specifically, the above - mentioned second threshold is less than the first threshold. For example, the first threshold is 35% of the battery power, and the second threshold is 15% of the battery power.

[0044] In this embodiment, the golden rescue time is determined according to the ambient temperature and the location information of the drowning person. This method of obtaining the golden rescue time is more reasonable and more in line with the actual situation.

[0045] Specifically, the golden rescue time corresponding to the environmental temperature and location information can be set in advance. For example, when falling into the water in Area A, if the environmental temperature is 20 - 25 degrees Celsius, the golden rescue time is 72 hours; if the environmental temperature is 15 - 19 degrees Celsius, the golden rescue time is 48 hours; if the environmental temperature is less than 15 degrees Celsius, the golden rescue time is 24 hours, etc. When falling into the water in Area B, if the environmental temperature is 20 - 25 degrees Celsius, the golden rescue time is 48 hours; if the environmental temperature is 15 - 19 degrees Celsius, the golden rescue time is 30 hours; if the environmental temperature is less than 15 degrees Celsius, the golden rescue time is 10 hours, etc.

[0046] In this embodiment, when the person falling into the water is rescued or in a safe position, the MCU unit is triggered to perform a shutdown operation through the shutdown button.

[0047] Specifically, since the MCU unit is triggered to perform a shutdown operation through the shutdown button when the person falling into the water is rescued or in a safe position, in this way, the rescue personnel can seize the time to rescue other people falling into the water, so as to increase the probability of rescuing other people falling into the water.

[0048] As Figure 2 shown, the second embodiment of the present application provides a device with a function of alarming for falling into the water, and the device is used to implement the operations corresponding to the above-mentioned method for alarming communication for falling into the water. The device includes an MCU unit, a VHF alarm module, a Beidou alarm module, a temperature sensor, an upper computer interaction module, and a power supply unit.

[0049] Specifically, the Beidou alarm module is electrically connected to the MCU unit and has functions of Beidou positioning and short message communication, and is used to send alarm information, location information and other information through short messages.

[0050] Specifically, the VHF alarm module is electrically connected to the MCU unit and is used to send VHF alarm information.

[0051] Specifically, the temperature sensor is electrically connected to the MCU unit and is used to obtain the environmental temperature, and the MCU unit can perform subsequent operations according to the data obtained by the temperature sensor.

[0052] Specifically, the upper computer interaction module is electrically connected to the MCU unit and is used to interact with the upper computer.

[0053] Specifically, the power supply unit is used to supply power to each unit and module.

[0054] In this embodiment, the power supply unit includes a lithium battery, and sponge cushions are wrapped at the respective apexes of the soft-pack lithium battery, and the lithium battery is a disposable soft-pack lithium manganese dioxide battery.

[0055] Specifically, there are many types of lithium batteries, but not every type of lithium battery is suitable for use as the battery of a water immersion alarm device. This is because multiple factors need to be considered, such as size, energy density, self-discharge rate, maintenance cycle, storage life, and operating temperature range. Through a large number of experiments, the present application has found that a disposable soft-pack lithium manganese dioxide battery is the best battery solution for the power supply of a water immersion alarm device. This is because this type of battery takes into account multiple factors such as size, energy density, self-discharge rate, maintenance cycle, storage life, and operating temperature range, and is particularly suitable for use as the power supply of a water immersion alarm device.

[0056] In this embodiment, it further includes a water immersion alarm button, a water immersion detection sensor, and a shutdown button. The above-mentioned water immersion detection sensor can be implemented using existing sensors. The water immersion alarm button is used to trigger the MCU unit to perform a power-on operation, the water immersion detection sensor is used to trigger the MCU unit to perform a power-on operation, and the shutdown button is used to trigger the MCU unit to perform a shutdown operation.

[0057] It should be noted that after the MCU unit performs a power-on operation, the operations corresponding to the above-mentioned water immersion alarm communication method can be implemented.

[0058] The third embodiment of the present application provides a multi-person water immersion alarm communication method. This method uses the above-mentioned device with a water immersion alarm function of the present application. When multiple people fall into the water and each person is equipped with a device with a water immersion alarm function, each device with a water immersion alarm function uses a self-organizing time division multiple access communication method to communicate alternately on two channels, A1 and A2. Each device with a water immersion alarm function independently selects a time slot and continuously sends alarm information independently.

[0059] In this embodiment, each device with a water immersion alarm function selects 1 to 5 time slots in each frame and sends sub-frames in one or several of these time slots, using the remaining time slots as spare time slots.

[0060] In this embodiment, the start and end of each frame use the UTC time of the Beidou satellite as a synchronization flag.

[0061] Specifically, the characteristic of the self-organizing time division multiple access communication method is that the time slots are pre-allocated equally for the terminals. Its advantages are as follows: All devices perform time slot selection. The specific steps of the time slot selection process are as follows:

[0062] a) Send an application to specify the range of the selected candidate time slots.

[0063] b) Determine a series of candidate time slots based on the time slot selection range. The candidate time slots consist of idle time slots.

[0064] c) Select a time slot with equal probability from the candidate time slots as the transmission time slot.

[0065] Meanwhile, the key to implementing the communication mode of self-organizing time division multiple access is time slot synchronization, with the start and end of each frame marked by the UTC time of Beidou satellites. Since the synchronization accuracy of Beidou satellites is 10 nanoseconds, this accuracy can ensure that 2,250 time slots are available per minute. The purpose of time slot synchronization is to ensure that all end-users participating in the communication can send and receive data within a predetermined time interval, thereby achieving efficient spectrum utilization and avoiding signal conflicts.

[0066] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A method for water-falling alarm communication, characterized in that , including: Collect the current ambient temperature and battery power, and adaptively adjust the alarm frequency according to the current ambient temperature and battery power. Specifically, the lower the ambient temperature, the higher the alarm frequency within the golden rescue time; the higher the ambient temperature, the lower the alarm frequency within the golden rescue time. When the golden rescue time has passed, the alarm frequency is reduced to a preset value. When the battery power is lower than the first threshold, the ambient temperature is no longer considered, and the alarm frequency is directly set to the lowest value. When the ultra-short wave alarm information is transmitted, the power supply of the ultra-short wave alarm module will be automatically cut off. When the Beidou module completes the positioning and short message sending tasks, the power supply of the Beidou module will be automatically cut off. When no operation is performed within a period of time, it will automatically switch to the sleep mode. In this mode, Only the MCU unit enters the low-power state, and other modules are all turned off.

2. The water-falling alarm communication method according to claim 1, wherein , when the battery power is lower than the second threshold, the MCU unit performs auxiliary function operations, and the second threshold is less than the first threshold.

3. The falling water alarm communication method according to claim 1, characterized in that , determine the golden rescue time according to the ambient temperature and the location information of the drowning person.

4. The waterlogging alarm communication method according to claim 1, characterized in that , when the drowning person is rescued or in a safe position, trigger the MCU unit to perform a shutdown operation through the shutdown button.

5. A device with a function of alarm for falling into water, characterized in that, The device is used to implement the operations corresponding to the drowning alarm communication method described in claims 1 to 4. It includes an MCU unit. A Beidou alarm module, which is electrically connected to the MCU unit and has Beidou positioning and short message communication functions. An ultra-short wave alarm module, which is electrically connected to the MCU unit and is used to send ultra-short wave alarm information. A temperature sensor, which is electrically connected to the MCU unit and is used to obtain the ambient temperature. A power supply unit for power supply.

6. The device with a water-falling alarm function according to claim 5, characterized in that, The power supply unit includes a lithium battery. Sponge pads are wrapped around the corners of the soft-pack lithium battery. The lithium battery is a disposable soft-pack lithium manganese dioxide battery.

7. The device with a function of falling into water alarm according to claim 6, characterized in that, It also includes a drowning alarm button, a drowning detection sensor, and a shutdown button. The drowning alarm button is used to trigger the MCU unit to perform a startup operation, the drowning detection sensor is used to trigger the MCU unit to perform a startup operation, and the shutdown button is used to trigger the MCU unit to perform a shutdown operation.

8. A method for multi-person drowning alarm communication, using the device with a drowning alarm function described in claim 7, characterized in that, It includes multiple devices with drowning alarm functions. Each device with a drowning alarm function uses the self-organized time division multiple access communication method to communicate alternately on two channels, A1 and A2. Each device with a drowning alarm function selects its own time slot and independently and continuously sends alarm information.

9. The multi-person falling into water alarm communication method according to claim 8, wherein, Each device with a drowning alarm function selects 1 to 5 time slots in each frame and sends sub-frames in one or several of these time slots, and uses the remaining time slots as spare time slots.

10. The multi-person falling into water alarm communication method according to claim 9, wherein, Use the UTC time of the Beidou satellite as the synchronization flag at the beginning and end of each frame.

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