Water level and rainfall alarm device

Abstract

The utility model belongs to the technical field of flood control alarm, and provides a water level and rainfall alarm device which comprises a floating ball switch assembly arranged at the upstream position of a bayonet and used for triggering alarm when the water level reaches a preset threshold value; the rainfall sensor is used for triggering an alarm when a preset rainfall threshold value is reached; the alarm module is connected with the floating ball switch assembly and the rainfall sensor and is used for giving out photoelectric and audible alarms when receiving the trigger signal; the solar power supply module comprises a solar panel and a solar charging and discharging controller and is used for providing electric energy; and the wireless transmission module is used for wirelessly transmitting the alarm signal to a village committee for alarming. Compared with the prior art, the device has the advantages that the structure is simple, the device can stably work in a severe environment, timely and accurate water level and rainfall alarm information is provided, and therefore life and property losses of people caused by mountain torrent disasters are effectively reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of flood prevention alarm, and specifically relates to a water level and rainfall alarm device. Background Art

[0002] Flash floods are the focus of flood control in small watersheds. Due to the complex topography, flash floods in small watersheds often rise and fall rapidly, and the forecast time is extremely short, which poses a great challenge to disaster warning and prevention work, especially at weak points such as bridges and weirs.

[0003] Traditional flood warning methods, such as radar and ultrasonic water level gauges, can monitor water level changes to a certain extent, but in actual applications, they often have problems such as false alarms, especially in extreme weather such as typhoons and rainstorms, their accuracy and reliability will be seriously affected. In addition, most traditional flood warning systems use wired transmission methods, such as DTU transmission. When the network signal is interfered or interrupted, data transmission will be affected, and even the warning information cannot be delivered in time, which brings great risks to disaster prevention and control. Utility Model Content

[0004] The purpose of this application is to provide a water level and rainfall alarm device, which is not only simple in structure, but also able to work stably in harsh environments, provide timely and accurate water level and rainfall alarm information, thereby effectively reducing the loss of life and property caused by mountain torrents.

[0005] The technical solution adopted by the present application to solve the above technical problems is: to propose a water level and rainfall alarm device, comprising:

[0006] A float switch assembly is arranged at the bayonet position and is used to output a float detection signal when the water level reaches a preset threshold;

[0007] A rainfall sensor, used to output a rainfall detection signal when a preset rainfall threshold is reached;

[0008] A first alarm module, connected to the float switch assembly and the rain sensor, for issuing an alarm upon receiving a float detection signal or a rain detection signal;

[0009] A power supply module, used to provide power to the float switch assembly and the rain sensor;

[0010] The wireless transmission module is connected to the float switch assembly and the rain sensor, and is used to output a wireless transmission signal when receiving a float detection signal or a rain detection signal;

[0011] The second alarm module is arranged in the village committee and connected to the wireless transmission module, and is used for issuing an alarm when receiving a wireless transmission signal.

[0012] Through the above-mentioned technical features, when the water level reaches the preset threshold, the float switch assembly will change its state and output a float detection signal. When the rainfall reaches the preset rainfall threshold, the rain sensor will output a rainfall detection signal. When the first alarm module receives any one of the float detection signal or the rainfall detection signal, it will immediately trigger the alarm mechanism and send out an alarm signal. After receiving the float detection signal or the rainfall detection signal, the wireless transmission module will convert these signals into wireless transmission signals and send them to the village committee through the wireless network. When the second alarm module in the village committee receives the wireless transmission signal, it will issue an alarm to notify the management personnel in the village committee that the water level or rainfall has reached the warning level, so that relevant personnel can be informed in time and take countermeasures.

[0013] Therefore, the alarm device of the present application can monitor the changes of water level and rainfall in real time through the float switch assembly and the rain sensor, and issue an alarm in time when the preset threshold is reached, ensuring that relevant personnel can take measures quickly, and the dual detection mechanism improves the accuracy and reliability of the alarm. Moreover, through the wireless transmission module and the second alarm module, management personnel can remotely monitor the changes of water level and rainfall in the village committee, which improves the flexibility and convenience of monitoring. Through timely alarm and remote monitoring, the device helps to improve the safety of flood control and waterlogging prevention, reduce the risk of natural disasters caused by excessive water levels or excessive rainfall, and effectively reduce the loss of life and property caused by mountain torrents.

[0014] Preferably, the float switch assembly includes at least a first float switch and a second float switch, the first float switch outputs a first float detection signal when the water level reaches a first threshold, and the second float switch outputs a second float detection signal when the water level reaches a second threshold, and the first threshold is less than the second threshold.

[0015] Through the above technical features, when the water level reaches the first threshold, the first float switch outputs the first float detection signal, and the first threshold is set to a relatively low water level value for early warning; when the water level rises further and reaches the second threshold, the second float switch outputs the second float detection signal, and the second threshold is higher than the first threshold, which is used to provide a more urgent alarm when the water level is higher. Therefore, by setting two float switches with different thresholds, a dual early warning machine is provided, which is convenient for management personnel to obtain corresponding alarm information at different water level stages, so as to take countermeasures in advance. And the setting of two float switches improves the accuracy and reliability of the alarm. Even if one of the float switches is misoperated or fails, the other can continue to work to ensure the normal operation of the alarm function.

[0016] Preferably, the float switch assembly also includes a third float switch, which is used to trigger an alarm signal in advance. The third float switch outputs a third float detection signal when the water level reaches a third threshold, and the second threshold is less than the third threshold.

[0017] Through the above-mentioned technical features, the third float switch is set at the lowest water level threshold, i.e., the third threshold. When the water level reaches the third threshold, the third float switch outputs a third float detection signal, which is used to trigger an alarm in advance so that management personnel can notice changes in water levels as early as possible, providing management personnel with sufficient time to respond to impending water level changes, and helping to reduce potential risks caused by rising water levels.

[0018] Preferably, the first alarm module includes a first controller, a second controller, a first alarm component and a second alarm component; the input end of the first controller is connected to the output end of the first float switch, the output end of the first controller is connected to the input end of the first alarm component, the first controller is used to output a first control signal when receiving a first float detection signal of the first float switch, and the first alarm component alarms when receiving the first control signal; the input end of the second controller is connected to the input end of the second float switch, the output end of the second controller is connected to the output end of the second alarm component, the second controller is used to output a second control signal when receiving a second float detection signal of the second float switch, and the second alarm component alarms when receiving the second control signal.

[0019] Through the above technical features, when the water level reaches the first threshold value set by the first float switch, the first float switch will output the first float detection signal, the first controller will output the first control signal after receiving the first float detection signal, and the first alarm component will trigger the alarm when receiving the first control signal; when the water level continues to rise and reaches the second threshold value set by the second float switch, the second float switch will output the second float detection signal, the second controller will output the second control signal after receiving the second float detection signal, and the second alarm component will trigger the alarm when receiving the second control signal. Through the setting of the first float switch and the second float switch, the graded alarm under different water level thresholds is realized. The alarm levels of the first alarm component and the second alarm component are different, and different countermeasures can be taken according to the degree of water level rise. The triggering of the alarm component directly corresponds to the water level threshold detected by the specific float switch, so that the management personnel can quickly judge the current water level status and take corresponding measures. And because of the use of independent controllers and alarm components, even if one of the components fails, the other component can still work normally, ensuring the reliability of the alarm system.

[0020] Preferably, the first alarm module also includes a third controller, the input end of the third controller is connected to the output end of the rain sensor, the input end of the third controller is connected to the input end of the second controller, the third controller is used to output a third control signal when receiving a rain detection signal from the rain sensor, the second controller is used to output a fourth control signal when receiving the third control signal, and the alarm component alarms when receiving the fourth control signal.

[0021] Through the above technical features, when the rainfall reaches the preset rainfall threshold, the rain sensor is triggered and outputs a rain detection signal, the third controller receives the rain detection signal and outputs a third control signal, and when the second controller receives the third control signal, it further processes the signal and outputs a fourth control signal, and the alarm component triggers an alarm when it receives the fourth control signal. Therefore, through the setting of the rain sensor, the first alarm module can monitor the rainfall in real time, and when the rainfall reaches the preset threshold, it can quickly trigger an alarm to remind relevant personnel to pay attention to the risk that the water level may rise due to rainfall. And the linkage control of the alarm module is realized through the setting of the third controller and the second controller. When the rainfall exceeds the preset threshold, not only the module where the rain sensor is located will trigger an alarm, but the second controller related to the water level will also receive the signal and respond, which enhances the overall response ability and early warning effect of the system. Combined with the monitoring of water level and rainfall, the first alarm module can more accurately judge the current water level risk. Through the introduction of rainfall signals, early warnings can be issued in advance before the water level actually rises, providing more timely and effective support for flood control, water resources management and ecological protection. In addition, by setting up multiple controllers and alarm components, the system has higher redundancy and fault tolerance. Even if one component fails, other components can still work normally, ensuring the overall stability and reliability of the system.

[0022] Preferably, the wireless transmission module includes a first remote module and a second remote module; the first remote module is connected to the third float switch, and the first remote module is used to output a first wireless transmission signal when receiving a third float signal from the third float switch; the second remote module is connected to the input end of the second controller, and the second remote module is used to output a first drive signal when receiving the first wireless transmission signal, and the second controller outputs the second control signal when receiving the first drive signal, thereby driving the second alarm component to alarm.

[0023] Through the above technical features, when the water level reaches the third threshold, the third float switch is triggered and outputs the third float detection signal; after the first remote module receives the third float detection signal, the first remote module processes the signal and outputs the first wireless transmission signal; when the second remote module receives the first wireless transmission signal, it processes the signal and outputs the first drive signal; after the second controller receives the first drive signal, the second controller further processes the signal and outputs the second control signal; when the second alarm component receives the second control signal, the second alarm component triggers and issues an alarm. Therefore, through the cooperation of the first remote module and the second remote module, the system can realize remote real-time monitoring of the water level. Even in unattended or remote areas, timely response to water level changes can be ensured. And when the third float switch is triggered, through the wireless transmission module, the system can quickly transmit the signal to the remote location and trigger the corresponding alarm component to alarm. This rapid response mechanism can significantly improve the efficiency of early warning and reduce potential risks caused by delays.

[0024] Preferably, the first alarm component includes a first sound alarm and a first alarm light, and the input ends of the first sound alarm and the first alarm light are connected to the output end of the first controller in parallel;

[0025] The second alarm component includes a second sound alarm and a second alarm light, and the input ends of the second sound alarm and the second alarm light are connected to the output end of the second controller.

[0026] Through the above technical features, when the water level reaches the first threshold, the first float switch is triggered and outputs the first float detection signal to the first controller. After receiving the signal, the first controller outputs the first control signal, which is simultaneously transmitted to the first sound alarm and the input end of the first alarm light connected to the output end of the first controller, and the first sound alarm emits a sound alarm, and the first alarm light is on to remind the user to pay attention to the water level change; when the water level reaches the second threshold, the second controller receives the corresponding signal, and after receiving the signal, the second controller outputs the second control signal, which is simultaneously transmitted to the second sound alarm and the input end of the second alarm light connected to the output end of the second controller, and the second sound alarm emits a sound alarm, and the second alarm light is on to further remind the user to pay attention to the water level is about to or has reached a more dangerous level. Through the dual alarm mode of the sound alarm and the alarm light, it can provide users with intuitive and obvious alarm information. Whether in a noisy environment or in a visually limited environment, users can notice the water level changes in time.

[0027] Preferably, the wireless transmission module also includes a third remote module, a fourth remote module, a first relay and a second relay; the input end of the first relay is connected to the output end of the first controller, the output end of the first relay is connected to the input end of the third remote module, when the first controller receives the first float detection signal of the first float switch, the first relay is turned on, and the third remote module outputs a second wireless signal; the input end of the second relay is connected to the output end of the second controller, the output end of the second relay is connected to the input end of the third remote module, when the second controller receives the second float detection signal of the second float switch or receives the third float detection signal of the third float switch or receives the rainfall detection signal of the rain sensor, the second relay is turned on, and the third remote module outputs a second wireless signal;

[0028] The fourth remote module is arranged in the village committee, the output end of the fourth remote module is connected to the input end of the second alarm module, the fourth remote module outputs a second driving signal when receiving the second wireless signal, and the second alarm module alarms when receiving the second driving signal.

[0029] Through the above technical features, when the water level reaches the first preset threshold, the first controller receives the first float detection signal of the first float switch, and the first controller outputs a signal to the input end of the first relay. After receiving the signal, the first relay conducts, thereby allowing the third remote module to receive the signal from the first relay. After receiving the signal, the third remote module outputs the second wireless signal; when the second controller receives any of the following signals: the second float detection signal of the second float switch (indicating that the water level reaches the second preset threshold), the third float detection signal of the third float switch (indicating that the water level reaches the third preset threshold), and the rainfall detection signal of the rain sensor (indicating that the rainfall reaches the preset threshold), the second controller will output a signal to the input end of the second relay. After receiving the signal, the second relay conducts, thereby allowing the third remote module to receive the signal from the second relay. Similar to the case of the first relay, the third remote module outputs the second wireless signal. When receiving the second wireless signal, the fourth remote module outputs the second drive signal, and the second alarm module triggers the alarm after receiving the second drive signal. Therefore, no matter whether the first float switch, the second float switch, the third float switch or the rain sensor triggers the alarm, the system can transmit the alarm signal to the village committee in real time through the wireless transmission module, realizing remote monitoring and alarm.

[0030] Preferably, the second alarm module includes a third alarm light and a fourth alarm light, and the input ends of the third alarm light and the fourth alarm light are connected to the input end of the fourth remote module; when the first relay is turned on, the third alarm light alarms; when the second relay is turned on, the fourth alarm light alarms.

[0031] Through the above-mentioned technical features, when the first controller receives the first float detection signal of the first float switch (that is, the water level reaches the first preset threshold value), the first relay is turned on. Since the input end of the third alarm light is connected in parallel with the input end of the fourth remote module, and the output end of the first relay is connected to the input end of the third remote module, when the first relay is turned on, although the third remote module will output the second wireless signal, in this case, the third alarm light connected in parallel with the fourth remote module is directly triggered. Therefore, the third alarm light will light up to alarm, indicating that the water level has reached the first preset threshold value. When the second controller receives the second float detection signal of the second float switch, the third float detection signal of the third float switch or the rainfall detection signal of the rain sensor (i.e. the water level reaches the second or third preset threshold, or the rainfall reaches the preset threshold), the second relay is turned on. Similarly, since the input end of the fourth alarm light is connected in parallel with the input end of the fourth remote module, and the output end of the second relay is also connected to the input end of the third remote module, when the second relay is turned on, although the third remote module will output the second wireless signal, in this case, the fourth alarm light connected in parallel with the fourth remote module is directly triggered. Therefore, the fourth alarm light will light up to alarm, indicating that the water level or rainfall has reached a higher preset threshold. Therefore, by using the third alarm light and the fourth alarm light to distinguish the alarm, the user can intuitively understand the degree of change of the water level or rainfall. The third alarm light is on to indicate that the water level has reached the first preset threshold, while the fourth alarm light is on to indicate that the water level or rainfall has reached a higher preset threshold.

[0032] Preferably, the power supply module includes a solar panel, a solar charge and discharge controller and a battery, the solar panel is electrically connected to the solar charge and discharge controller, and the solar charge and discharge controller is electrically connected to the battery.

[0033] Through the above technical features, solar energy is collected by solar panels and converted into electrical energy, and then charging and discharging are managed by a solar charge and discharge controller to provide stable electricity for the entire device without the need for an external power supply. This is energy-saving, environmentally friendly, convenient and practical, and can ensure stable power supply to the alarm device under severe weather conditions, thereby improving the reliability of the alarm system.

[0034] In summary, this application has the following beneficial effects:

[0035] (1) This application adopts a dual trigger alarm mechanism of a float switch assembly and a rain sensor, which can simultaneously monitor changes in water level and rainfall, and trigger an alarm in time when the preset threshold is reached, thereby improving the accuracy and timeliness of the alarm;

[0036] (2) This application uses a wireless transmission module to transmit the alarm signal to the village committee wirelessly, so that relevant personnel can be informed and handle it in a timely manner, thereby effectively reducing the loss of life and property caused by flash floods;

[0037] (3) The present application adopts a solar power supply module to provide electrical energy, which is not only environmentally friendly and energy-saving, but also can ensure stable power supply to the alarm device under severe weather conditions, thereby improving the reliability of the alarm system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A circuit connection diagram of an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a wireless transmission module according to an embodiment of the present application Figure 1 ;

[0040] Figure 3 A schematic diagram of a wireless transmission module according to an embodiment of the present application Figure 2 .

[0041] In the figure, 1. float switch assembly; 11. first float switch; 12. second float switch; 13. third float switch; 2. rain sensor; 3. first alarm module; 31. first controller; 32. second controller; 33. first alarm assembly; 331. first sound alarm; 332. first alarm light; 34. second alarm assembly; 341. second sound alarm; 342. second alarm light; 35. third controller; 4. power supply module; 41. solar panel; 42. solar charge and discharge controller; 43. battery; 5. wireless transmission module; 51. first remote module; 52. second remote module; 53. third remote module; 54. fourth remote module; 55. first relay; 56. second relay; 6. second alarm module; 61. third alarm light; 62. fourth alarm light. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present application and combined with the accompanying drawings to further describe the technical solution of the present application, but the present application is not limited to these embodiments.

[0043] like Figure 1 , Figure 2 , Figure 3As shown, the present application discloses a water level and rainfall alarm device, comprising: a float switch assembly 1, a rainfall sensor 2, a first alarm module 3, a second alarm module 6, a wireless transmission module 5 and a power supply module 4.

[0044] The float switch assembly 1 is arranged at the upstream position of the buckle, and is used to trigger the alarm module to alarm when the water level reaches a preset threshold. The float switch assembly 1 includes a first float switch 11 and a second float switch 12. The first float switch 11 outputs a first float detection signal when the water level reaches a first threshold, and the second float switch 12 outputs a second float detection signal when the water level reaches a second threshold, and the first threshold is less than the second threshold; the float switch assembly 1 also includes a third float switch 13, and the third float switch 13 is used to trigger the alarm signal in advance. The third float switch 13 outputs a third float detection signal when the water level reaches a third threshold, and the second threshold is less than the third threshold.

[0045] The rain sensor 2 is used to output a rain detection signal when the preset rainfall threshold is reached. For example, the rain sensor 2 can be set to three time periods. For example, when the precipitation exceeds 50 mm within 1 hour, or exceeds 65 mm within 2 hours, or exceeds 80 mm within 3 hours, the rain sensor 2 is triggered. The rain trigger sensor uses a 0.5 mm accuracy trigger sensor.

[0046] The first alarm module 3 includes a first controller 31, a second controller 32, a first alarm component 33, and a second alarm component 34. The input end of the first controller 31 is connected to the output end of the first float switch 11, and the output end of the first controller 31 is connected to the input end of the first alarm component 33. The first controller 31 is used to output a first control signal when receiving a first float detection signal of the first float switch 11, and the first alarm component 33 alarms when receiving the first control signal; the input end of the second controller 32 is connected to the input end of the second float switch 12, and the output end of the second controller 32 is connected to the output end of the second alarm component 34. The second controller 32 is used to output a second control signal when receiving a second float detection signal of the second float switch 12, and the second alarm component 34 alarms when receiving the second control signal.

[0047] The first alarm module 3 also includes a third controller 35, an input end of the third controller 35 is connected to the output end of the rain sensor 2, and an input end of the third controller 35 is connected to an input end of the second controller 32. The third controller 35 is used to output a third control signal when receiving a rain detection signal from the rain sensor 2, and the second controller 32 is used to output a fourth control signal when receiving the third control signal. The second alarm component 34 alarms when receiving the fourth control signal.

[0048] The wireless transmission module 5 includes a first remote module 51 and a second remote module 52; the first remote module 51 is connected to the third float switch 13, and the first remote module 51 is used to output a first wireless transmission signal when receiving the third float signal of the third float switch 13; the second remote module 52 is connected to the input end of the second controller 32, and the second remote module 52 is used to output a first drive signal when receiving the first wireless transmission signal, and the second controller 32 outputs a second control signal when receiving the first drive signal, thereby driving the second alarm component 34 to alarm.

[0049] Specifically, the first controller 31 and the second controller 32 in the present application are both time relays.

[0050] The first alarm component 33 in the present application includes a first sound alarm 331 and a first alarm light 332, and the input ends of the first sound alarm 331 and the first alarm light 332 are connected in parallel to the output end of the first controller 31; the second alarm component 34 includes a second sound alarm 341 and a second alarm light 342, and the input ends of the second sound alarm 341 and the second alarm light 342 are connected in parallel to the output end of the second controller 32.

[0051] The wireless transmission module 5 in the present application also includes a third remote module 53, a fourth remote module 54, a first relay 55 and a second relay 56. The input end of the first relay 55 is connected to the output end of the first controller 31, and the output end of the first relay 55 is connected to the input end of the third remote module 53. When the first controller 31 receives the first float detection signal of the first float switch 11, the first relay 55 is turned on, and the third remote module 53 outputs the second wireless signal; the input end of the second relay 56 is connected to the output end of the second controller 32, and the output end of the second relay 56 is connected to the input end of the third remote module 53. When the second controller 32 receives the second float detection signal of the second float switch 12 or receives the third control signal or receives the first drive signal, the second relay 56 is turned on, and the third remote module 53 outputs the second wireless signal; the fourth remote module 54 is set in the village committee, and the output end of the fourth remote module 54 is connected to the input end of the second alarm module 6. The fourth remote module 54 outputs the second drive signal when receiving the second wireless signal, and the second alarm module 6 alarms when receiving the second drive signal.

[0052] The second alarm module 6 in the present application includes a third alarm light 61 and a fourth alarm light 62, and the input ends of the third alarm light 61 and the fourth alarm light 62 are connected to the input end of the fourth remote module 54; when the first relay 55 is turned on, the third alarm light 61 alarms; when the second relay 56 is turned on, the fourth alarm light 62 alarms.

[0053] The power supply module 4 in the present application includes a solar panel, a solar charge and discharge controller 42 and a battery 43 . The solar panel is electrically connected to the solar charge and discharge controller 42 , and the solar charge and discharge controller 42 is electrically connected to the battery 43 .

[0054] Working principle: When the water level rises to a certain height and reaches the threshold value (first threshold value) of the water level ready for transfer, the first float switch 11 is triggered, and the first float switch 11 drives the time relay to be energized and triggers a 5-minute cycle output every 10 minutes to control the first sound alarm 331 (ready to transfer signal) and the first alarm light 332 (yellow) to alarm;

[0055] As the water level continues to rise, when it reaches a higher preset threshold value (second threshold value) of the immediate transfer water level, the second float switch 12 is triggered, and the second float switch 12 drives the second relay of the time relay to be energized and trigger a 5-minute cycle output every 10 minutes to control the second sound alarm 341 (immediate transfer signal) and the second alarm light 342 (red) to alarm;

[0056] When the third upstream float switch 13 is triggered, it is wirelessly transmitted to the second remote module 52 through the first remote module 51, and the second remote module 52 drives the second relay of the time relay to be energized and trigger a 5-minute cycle output every 10 minutes to control the second sound alarm 341 (immediate transfer signal) and the second alarm light 342 (red) to alarm;

[0057] When the number of triggering times of the rain sensor 2 reaches the designed value within the set time period, the second sound alarm 341 (immediate evacuation signal) and the second alarm light 342 (red) are triggered to alarm, notifying the surrounding people to evacuate immediately. The second sound alarm 341 and the second alarm light 342 alarm, triggering a 5-minute cycle alarm every 10 minutes.

[0058] When the first float switch 11, the second float switch 12, the third float switch 13, and the rain sensor 2 trigger an alarm, the third alarm light 61 and the fourth alarm light 62 in the village committee are triggered to alarm through wireless transmission of the third remote module 53 and the fourth remote module 54.

[0059] The specific embodiments described herein are merely examples of the present application. A person skilled in the art of the present application may make various modifications or additions to the specific embodiments described or replace them in a similar manner without departing from the scope defined in the present application.

Claims

1. A water level and rainfall alarm device, characterized in that: include: A float switch assembly (1), arranged at the bayonet position, is used to output a float detection signal when the water level reaches a preset threshold; A rainfall sensor (2), configured to output a rainfall detection signal when a preset rainfall threshold is reached; A first alarm module (3), connected to the float switch assembly (1) and the rain sensor (2), and configured to issue an alarm when receiving a float detection signal or a rain detection signal; A power supply module (4) is used to provide electric energy to the float switch assembly (1) and the rain sensor (2); A wireless transmission module (5) is connected to the float switch assembly (1) and the rain sensor (2) and is used to output a wireless transmission signal when receiving a float detection signal or a rain detection signal; The second alarm module (6) is arranged in the village committee and connected to the wireless transmission module (5), and is used to issue an alarm when receiving a wireless transmission signal.

2. The water level and rainfall alarm device according to claim 1, characterized in that: The float switch assembly (1) comprises at least a first float switch (11) and a second float switch (12); the first float switch (11) outputs a first float detection signal when the water level reaches a first threshold value, and the second float switch (12) outputs a second float detection signal when the water level reaches a second threshold value, and the first threshold value is less than the second threshold value.

3. The water level and rainfall alarm device according to claim 2 is characterized in that: The float switch assembly (1) further comprises a third float switch (13), the third float switch (13) being used to trigger an alarm signal in advance. The third float switch (13) outputs a third float detection signal when the water level reaches a third threshold value, and the second threshold value is less than the third threshold value.

4. The water level and rainfall alarm device according to claim 3 is characterized in that: The first alarm module (3) comprises a first controller (31), a second controller (32), a first alarm component (33) and a second alarm component (34); the input end of the first controller (31) is connected to the output end of the first float switch (11), the output end of the first controller (31) is connected to the input end of the first alarm component (33), the first controller (31) is used to output a first control signal when receiving a first float detection signal from the first float switch (11), and the first alarm component (33) alarms when receiving the first control signal; the input end of the second controller (32) is connected to the input end of the second float switch (12), the output end of the second controller (32) is connected to the output end of the second alarm component (34), the second controller (32) is used to output a second control signal when receiving a second float detection signal from the second float switch (12), and the second alarm component (34) alarms when receiving the second control signal.

5. The water level and rainfall alarm device according to claim 4, characterized in that: The first alarm module (3) further comprises a third controller (35), the input end of the third controller (35) being connected to the output end of the rain sensor (2), the input end of the third controller (35) being connected to the input end of the second controller (32), the third controller (35) being used to output a third control signal upon receiving a rain detection signal from the rain sensor (2), the second controller (32) being used to output a fourth control signal upon receiving the third control signal, and the second alarm component (34) being used to alarm upon receiving the fourth control signal.

6. The water level and rainfall alarm device according to claim 5, characterized in that: The wireless transmission module (5) includes a first remote module (51) and a second remote module (52); the first remote module (51) is connected to the third float switch (13), and the first remote module (51) is used to output a first wireless transmission signal when receiving a third float signal from the third float switch (13); the second remote module (52) is connected to the input end of the second controller (32), and the second remote module (52) is used to output a first drive signal when receiving the first wireless transmission signal, and the second controller (32) outputs the second control signal when receiving the first drive signal, thereby driving the second alarm component (34) to alarm.

7. The water level and rainfall alarm device according to claim 6, characterized in that: The first alarm component (33) comprises a first sound alarm (331) and a first alarm light (332), and the input ends of the first sound alarm (331) and the first alarm light (332) are connected to the output end of the first controller (31); The second alarm component (34) comprises a second sound alarm (341) and a second alarm light (342), and the input ends of the second sound alarm (341) and the second alarm light (342) are connected to the output end of the second controller (32).

8. The water level and rainfall alarm device according to claim 6, characterized in that: The wireless transmission module (5) further comprises a third remote module (53), a fourth remote module (54), a first relay (55) and a second relay (56); the input end of the first relay (55) is connected to the output end of the first controller (31), the output end of the first relay (55) is connected to the input end of the third remote module (53), when the first controller (31) receives the first float detection signal of the first float switch (11), the first relay (55) is turned on, and the third remote module (53) outputs a second wireless signal; the input end of the second relay (56) is connected to the output end of the second controller (32), the output end of the second relay (56) is connected to the input end of the third remote module (53), when the second controller (32) receives the second float detection signal of the second float switch (12) or receives the third float detection signal of the third float switch (13) or receives the rainfall detection signal of the rainfall sensor (2), the second relay (56) is turned on, and the third remote module (53) outputs a second wireless signal; The fourth remote module (54) is arranged in the village committee, the output end of the fourth remote module (54) is connected to the input end of the second alarm module (6), the fourth remote module (54) outputs a second drive signal when receiving the second wireless signal, and the second alarm module (6) alarms when receiving the second drive signal.

9. The water level and rainfall alarm device according to claim 8, characterized in that: The second alarm module (6) comprises a third alarm light (61) and a fourth alarm light (62), and the input ends of the third alarm light (61) and the fourth alarm light (62) are connected to the input end of the fourth remote module (54); when the first relay (55) is turned on, the third alarm light (61) alarms; when the second relay (56) is turned on, the fourth alarm light (62) alarms.

10. The water level and rainfall alarm device according to claim 1, characterized in that: The power supply module (4) comprises a solar panel (41), a solar charge and discharge controller (42) and a storage battery (43); the solar panel (41) is electrically connected to the solar charge and discharge controller (42), and the solar charge and discharge controller (42) is electrically connected to the storage battery (43).

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