An apparatus for monitoring water pollution and a method of using the same

By using a cleaning unit that combines gas-liquid jet cleaning with mechanical scraping to remove impurities from the sensor surface, the problem of decreased sensor sensitivity and detection error in floating monitoring stations has been solved. This has resulted in high-efficiency water environment monitoring data accuracy and equipment durability, and enhanced field endurance.

CN122211537APending Publication Date: 2026-06-16SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF TECH
Filing Date
2026-03-10
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The sensors of existing floating monitoring stations are susceptible to algae and suspended impurities, which leads to decreased sensitivity and errors in detection results. Furthermore, the accumulation of impurities in the sealed measurement chamber affects the accuracy of monitoring data.

Method used

The cleaning unit combines gas-liquid jet cleaning with mechanical scraping to remove impurities from the sensor surface and rinse the sealed measurement chamber. Combined with solar power and a self-supply system, it ensures continuous operation of the equipment.

Benefits of technology

It significantly reduced testing errors, extended equipment lifespan, improved the accuracy and reliability of monitoring data, and enhanced the equipment's adaptability and endurance in the field.

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Abstract

The present application relates to a kind of water environment pollution monitoring equipment and its use method, equipment includes floating monitoring station, solar panel is provided on floating monitoring station, the bottom of floating monitoring station is fixedly equipped with protection ring, the inside of floating monitoring station is provided with detection piece, the inside of detection piece is provided with cleaning unit, cleaning unit includes water tank, air pump, atomizing nozzle and scraping piece;Detection piece includes contact sensor and pumping mixed detector, water tank is arranged at the side of pumping mixed detector, air pump is arranged at the other side of pumping mixed detector;Atomizing nozzle is arranged in the inside of pumping mixed detector, air pump is fixed at the top of pumping mixed detector, water tank is communicated with atomizing nozzle;Scraping piece is driven to be connected with air pump, and scraping piece is used to clean the impurities attached on contact sensor.Compared with prior art, the present application has the advantages of data accuracy, equipment durability and field endurance capability.
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Description

Technical Field

[0001] This invention relates to the field of water environment pollution monitoring technology, and in particular to a water environment pollution monitoring device and its usage method. Background Technology

[0002] In water pollution control and ecological protection, floating monitoring stations are a common type of water pollution monitoring equipment, widely used in various water environments such as rivers, lakes, and reservoirs. These devices, through their floating structure, can achieve long-term continuous monitoring of the water environment without the need for fixed installation foundations, making them flexible and convenient to deploy and effectively covering large monitoring areas.

[0003] Existing floating monitoring stations primarily employ two core monitoring methods for water quality parameter monitoring: one involves direct contact sensors physically interacting with the water body to directly acquire basic parameters such as water temperature, pH, and dissolved oxygen; the other uses a sampling pump to draw water samples from the area to be monitored into a sealed measurement chamber inside the equipment. This chamber integrates multiple high-precision sensors, enabling simultaneous and accurate measurement of various water quality indicators. However, during prolonged continuous monitoring, impurities such as algae, plankton, and suspended particulate matter in the water easily adhere to the inner wall of the sealed measurement chamber and the sensing surface of the direct contact sensors. This leads to decreased sensor sensitivity, and the detection environment within the sealed measurement chamber also changes due to impurity accumulation, resulting in significant errors in the test results. This affects the accuracy and reliability of the monitoring data, thus presenting limitations.

[0004] The reason for this problem is that algae and suspended impurities attached to the surface of the direct contact sensor form an insulating film, which hinders the effective contact between the sensor's sensing element and the water body. This results in a slower response speed of the sensor to water parameters, and the measured values ​​cannot accurately reflect the actual state of the water body. Furthermore, impurities accumulated on the inner wall of the sealed measurement chamber can change the circulation environment of the water sample inside the chamber. Some impurities may react chemically with the water sample or adsorb the target detection substances in the water sample, causing the parameters measured by the sensor inside the chamber to deviate from the actual water parameters, thus presenting limitations.

[0005] CN202111057293.3 discloses a pumping-type automatic sediment monitoring station, including a water sampling device and a detection device. The detection device includes a water tank connected to the water sampling device, a sensor installed inside the water tank for detecting sediment content, an air compressor for supplying compressed air, and a clean water supply device. The air compressor is connected to the top of the water tank via an airflow pipe. The top of the water tank has a clean water inlet with a valve, and the bottom of the water tank has a water outlet with a valve. The clean water supply device is connected to the clean water inlet. However, the cleaning logic relies on a single power source, affecting the monitoring function, resulting in a complex structure and low reliability and ease of maintenance. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects of the prior art by providing a water environment pollution monitoring device and its usage method, which has data accuracy, device durability and field endurance.

[0007] The objective of this invention can be achieved through the following technical solutions: This invention provides a water environment pollution monitoring device, including a floating monitoring station. The floating monitoring station is equipped with a solar panel and a protective ring is fixedly installed at the bottom. The floating monitoring station has a detection component inside and a cleaning unit inside the detection component. The cleaning unit includes a water tank, an air pump, an atomizing nozzle, and a scraper. The detection device includes a contact sensor and a water-mixing detector. The water tank is located on one side of the water-mixing detector, and the air pump is located on the other side. The atomizing nozzle is located inside the water-mixing detector, and the internal structure of the atomizing nozzle is an expansion-contraction structure. The air pump is fixed to the top of the water-mixing detector, and the water tank is connected to the atomizing nozzle. When the air pump blows air onto the atomizing nozzle, it can draw water out of the water tank to form a gas-liquid mixed jet. The jet is used to clean the inside of the water-mixing detector. The scraper is driven and connected to the air pump, and the scraper is used to clean impurities attached to the contact sensor.

[0008] Furthermore, the floating monitoring station is equipped with a collection bucket, the inside of which has a through hole, and a filter is installed inside the through hole, which is connected to the water tank.

[0009] Furthermore, the floating monitoring station has a partition fixed inside, and the water tank is fixed on the partition.

[0010] Furthermore, a water pipe is fixed to one side of the water tank, the water pipe is connected to the atomizing nozzle, and a solenoid valve is fixed on the water pipe.

[0011] Furthermore, a drain pipe is fixed to the bottom of the water-mixing detector, the drain pipe is connected to the water-mixing detector, and a valve is fixed inside the drain pipe.

[0012] Furthermore, an air supply pipe is fixed to the top of the atomizing nozzle, and the air supply pipe is connected to the atomizing nozzle.

[0013] Furthermore, a housing is fixed to the bottom of the pumping mixing detector, an impeller is rotatably connected inside the housing, a motor is fixed to one side of the housing, and the output shaft of the motor is fixed to the impeller.

[0014] Furthermore, the scraping component includes a three-way valve, a conduit, an air chamber, and a rotating wheel; The three-way valve is fixed to the top of the air pump and is connected to the air supply pipe; the conduit is located on one side of the three-way valve and is connected to the three-way valve; the air chamber is fixed inside the floating monitoring station and is connected to the air chamber, and the air chamber has a vent hole inside; the rotating wheel is rotatably connected to the inside of the air chamber.

[0015] Furthermore, the scraping component also includes a rotating shaft, a rotating block, a pushing block, and a scraping strip; The rotating shaft is fixed inside the rotating wheel; the rotating block is fixed on the rotating shaft; the push block is rotatably connected inside the rotating block, and the push block is slidably connected inside the floating monitoring station; the scraper is fixed to the end of the push block, and the scraper abuts against the contact sensor.

[0016] This invention also provides a method for using a water environment pollution monitoring device, comprising the following steps: S1. Deploy floating monitoring stations in the waters to be monitored; provide power for the equipment operation through solar panels; activate the detection unit, use contact sensors to perform in-situ detection of the water body, and use a pumping and mixing detector to extract water samples for mixed analysis, thereby achieving continuous monitoring of water pollution indicators. S2. When cleaning of the test piece is required, the cleaning unit is activated; the specific process includes: Jet cleaning: Turn on the air pump, and the airflow enters the atomizing nozzle through the air supply pipe; using the negative pressure effect generated by the expansion and contraction structure inside the atomizing nozzle, water in the water tank is drawn in through the water pipe and forms a gas-liquid mixed jet inside the atomizing nozzle to flush the pump-mixed detector, the housing and the inside of the impeller. The waste liquid after flushing is discharged through the drain pipe. Scraping cleaning: After the jet cleaning is completed, the airflow is diverted to the duct through the three-way valve and enters the air chamber to drive the rotating wheel to rotate; the rotating wheel drives the rotating block to move through the rotating shaft, which in turn pushes the push block to make reciprocating linear motion, so that the scraper fixed to the end of the push block scrapes away the impurities attached to the surface of the contact sensor. S3. Natural precipitation is collected using a collection bucket, filtered by the filter inside the collection bucket, and then flows into a water tank to achieve automatic water replenishment. The cleaning process is regulated by controlling the solenoid valve and the valve on the drain pipe. After cleaning is completed, the equipment returns to normal monitoring status, and this cycle is repeated to ensure continuous monitoring.

[0017] Compared with the prior art, the present invention has the following advantages: (1) Effectively ensures the accuracy of monitoring data. The device effectively removes impurities such as algae and suspended particulate matter through gas-liquid mixed jet cleaning (cleaning the inside of the pump-mixed detector) and scraping cleaning (scraping off the surface of the contact sensor) in the cleaning unit. This avoids the decrease in sensor sensitivity and changes in the detection environment caused by the accumulation of impurities, thereby significantly reducing test errors and ensuring the authenticity and reliability of monitoring data.

[0018] (2) Combining cleaning methods to improve equipment lifespan and reliability. Combining gas-liquid jet cleaning with mechanical scraping can address dirt of different types and locations. This combined cleaning mode effectively prevents stubborn dirt from adhering for a long time, avoids potential component damage, reduces equipment failure rate, extends the overall service life of the equipment, and reduces subsequent maintenance and replacement costs.

[0019] (3) Achieving self-sufficiency and self-powering, enhancing field adaptability and endurance. Water self-sufficiency: Natural precipitation is collected through the top collection hopper, filtered, and then discharged into the water tank, achieving automatic replenishment of clean water and solving the problem of frequent manual addition of clean water sources in long-term field monitoring. Energy self-sufficiency: Solar panels provide electricity for the equipment's operation and can also charge the internal energy storage battery. The self-sufficiency of the two key resources, water and electricity, enables the equipment to operate stably and for a long time in various aquatic environments in the field without human intervention, greatly improving the equipment's environmental adaptability and operational continuity. Attached Figure Description

[0020] Figure 1 A schematic diagram of a water environment pollution monitoring device; Figure 2 A side view of a floating monitoring station for water environment pollution monitoring equipment; Figure 3 A schematic diagram of the interior of a floating monitoring station for water pollution monitoring equipment; Figure 4 A schematic diagram of the cleaning unit of a water environment pollution monitoring device; Figure 5 A schematic diagram of the casing of a water environment pollution monitoring device; Figure 6 A schematic diagram of an atomizing nozzle for a water pollution monitoring device; Figure 7 A schematic diagram of the impeller of a water pollution monitoring device; Figure 8 A schematic diagram of the scraper component for a water pollution monitoring device; Figure 9 This is a schematic diagram of the scraper blades of a water pollution monitoring device.

[0021] Reference numerals: 1. Floating monitoring station; 2. Solar panel; 3. Detection component; 4. Cleaning unit; 41. Water tank; 42. Air pump; 43. Atomizing nozzle; 44. Scraper; 441. Three-way valve; 442. Conduit; 443. Air chamber; 444. Rotary wheel; 445. Rotating shaft; 446. Rotating block; 447. Pushing block; 448. Scraper; 45. Collection hopper; 46. Baffle; 47. Water pipe; 48. Solenoid valve; 49. Drain pipe; 410. Valve; 411. Air supply pipe; 412. Shell; 413. Impeller; 414. Motor; 5. Protective ring. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0023] Example 1 This embodiment provides a water environment pollution monitoring device, such as... Figure 1-9 As shown, it includes a floating monitoring station 1, on which a solar panel 2 is installed, and a protective ring 5 is fixedly installed at the bottom of the floating monitoring station 1. A detection component 3 is installed inside the floating monitoring station 1, and a cleaning unit 4 is installed inside the detection component 3. The cleaning unit 4 includes a water tank 41, an air pump 42, an atomizing nozzle 43, and a scraper 44. The detection element 3 includes a contact sensor and a water-mixing detector. The water tank 41 is located on one side of the water-mixing detector, and the air pump 42 is located on the other side. The atomizing nozzle 43 is located inside the water-mixing detector. The interior of the atomizing nozzle 43 has an overall expansion-contraction structure. The air pump 42 is fixed to the top of the water-mixing detector. The water tank 41 is connected to the atomizing nozzle 43. When the air pump 42 blows air into the atomizing nozzle 43, it can draw water out of the water tank 41 to form a gas-liquid mixed jet. The jet is used to clean the interior of the water-mixing detector. The scraper 44 is driven and connected to the air pump 42. The scraper 44 is used to clean impurities attached to the contact sensor.

[0024] Example 2 This embodiment provides a water environment pollution monitoring device, such as... Figure 1-9 As shown, it includes a floating monitoring station 1, on which a solar panel 2 is installed, and a protective ring 5 is fixedly installed at the bottom of the floating monitoring station 1. A detection component 3 is installed inside the floating monitoring station 1, and a cleaning unit 4 is installed inside the detection component 3. The cleaning unit 4 includes a water tank 41, an air pump 42, an atomizing nozzle 43, and a scraper 44. The detection element 3 includes a contact sensor and a water-mixing detector. The water tank 41 is located on one side of the water-mixing detector, and the air pump 42 is located on the other side. The atomizing nozzle 43 is located inside the water-mixing detector. The interior of the atomizing nozzle 43 has an overall expansion-contraction structure. The air pump 42 is fixed to the top of the water-mixing detector. The water tank 41 is connected to the atomizing nozzle 43. When the air pump 42 blows air into the atomizing nozzle 43, it can draw water out of the water tank 41 to form a gas-liquid mixed jet. The jet is used to clean the interior of the water-mixing detector. The scraper 44 is driven and connected to the air pump 42. The scraper 44 is used to clean impurities attached to the contact sensor.

[0025] In a specific embodiment, a collection bucket 45 is fixed on the floating monitoring station 1. The collection bucket 45 has a through hole inside, and a filter is installed inside the through hole. The through hole is connected to the water tank 41.

[0026] In a specific embodiment, a partition 46 is fixed inside the floating monitoring station 1, and the water tank 41 is fixed on the partition 46.

[0027] In a specific embodiment, a water pipe 47 is fixed to one side of the water tank 41, the water pipe 47 is connected to the atomizing nozzle 43, and a solenoid valve 48 is fixed on the water pipe 47.

[0028] In a specific embodiment, a drain pipe 49 is fixed at the bottom of the water-mixing detector, the drain pipe 49 is connected to the water-mixing detector, and a valve 410 is fixed inside the drain pipe 49.

[0029] In a specific embodiment, an air supply pipe 411 is fixed to the top of the atomizing nozzle 43, and the air supply pipe 411 is connected to the atomizing nozzle 43.

[0030] In a specific embodiment, a housing 412 is fixed to the bottom of the pumping mixing detector, an impeller 413 is rotatably connected inside the housing 412, a motor 414 is fixed to one side of the housing 412, and the output shaft of the motor 414 is fixed to the impeller 413.

[0031] In a specific embodiment, the scraping component 44 includes a three-way valve 441, a conduit 442, an air chamber 443, and a rotating wheel 444; The three-way valve 441 is fixed on the top of the air pump 42 and is connected to the air supply pipe 411; the conduit 442 is disposed on one side of the three-way valve 441 and is connected to the three-way valve 441; the air chamber 443 is fixed inside the floating monitoring station 1 and is connected to the conduit 442, and the air chamber 443 has a vent hole inside; the rotating wheel 444 is rotatably connected inside the air chamber 443.

[0032] In a specific embodiment, the scraping component 44 further includes a rotating shaft 445, a rotating block 446, a pushing block 447, and a scraping strip 448; The rotating shaft 445 is fixed inside the rotating wheel 444; the rotating block 446 is fixed on the rotating shaft 445; the push block 447 is rotatably connected inside the rotating block 446 and slidably connected inside the floating monitoring station 1; the scraper 448 is fixed at the end of the push block 447 and abuts against the contact sensor.

[0033] Example 3 This embodiment provides a method for using a water environment pollution monitoring device, including the following steps: S1. Deploy the floating monitoring station 1 in the water area to be monitored; provide power for the equipment operation through the solar panel 2; start the detection unit 3, use the contact sensor to perform in-situ detection of the water body, and use the pumping and mixing detector to extract water samples for mixed analysis, so as to realize continuous monitoring of water pollution indicators. S2. When cleaning of the test piece 3 is required, the cleaning unit 4 is activated; the specific process includes: Jet cleaning: Turn on the air pump 42, and the airflow enters the atomizing nozzle 43 through the air supply pipe 411; using the negative pressure effect generated by the expansion and contraction structure inside the atomizing nozzle 43, the water in the water tank 41 is drawn in through the water pipe 47, and a gas-liquid mixed jet is formed in the atomizing nozzle 43 to rinse the inside of the pumping mixed detector, the housing 412 and the impeller 413. The waste liquid after rinsing is discharged through the drain pipe 49. Scraping cleaning: After the jet cleaning is completed, the airflow is diverted to the duct 442 through the three-way valve 441 and enters the air chamber 443 to drive the rotating wheel 444 to rotate; the rotating wheel 444 drives the rotating block 446 to move through the rotating shaft 445, which in turn pushes the push block 447 to make reciprocating linear motion, so that the scraper 448 fixed at the end of the push block 447 scrapes away the impurities attached to the surface of the contact sensor; S3. Natural precipitation is collected using the collection bucket 45. After being filtered by the filter inside the collection bucket 45, the water flows into the water tank 41 to achieve automatic water replenishment. The opening and closing of the cleaning process is regulated by controlling the solenoid valve 48 and the valve 410 on the drain pipe 49. After cleaning is completed, the equipment returns to the normal monitoring state, and this cycle is repeated to ensure the continuity of monitoring.

[0034] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0035] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A water environment pollution monitoring device, characterized in that, The system includes a floating monitoring station (1), on which a solar panel (2) is installed, and a protective ring (5) is fixedly installed at the bottom of the floating monitoring station (1). The floating monitoring station (1) is characterized in that a detection component (3) is installed inside the floating monitoring station (1), and a cleaning unit (4) is installed inside the detection component (3). The cleaning unit (4) includes a water tank (41), an air pump (42), an atomizing nozzle (43), and a scraper (44). The detection component (3) includes a contact sensor and a water-mixing detector. The water tank (41) is located on one side of the water-mixing detector, and the air pump (42) is located on the other side of the water-mixing detector. The atomizing nozzle (43) is located inside the water-mixing detector. The interior of the atomizing nozzle (43) is an expansion-contraction expansion structure. The air pump (42) is fixed on the top of the water-mixing detector. The water tank (41) is connected to the atomizing nozzle (43). When the air pump (42) blows air into the atomizing nozzle (43), it can draw out the water inside the water tank (41) to form a gas-liquid mixed jet. The jet is used to clean the interior of the water-mixing detector. The scraper (44) is driven and connected to the air pump (42). The scraper (44) is used to clean the impurities attached to the contact sensor.

2. The water environment pollution monitoring equipment according to claim 1, characterized in that, The floating monitoring station (1) is fixed with a collection bucket (45), and the inside of the collection bucket (45) is provided with a through hole. A filter is installed inside the through hole, and the through hole is connected to the water tank (41).

3. The water environment pollution monitoring equipment according to claim 1, characterized in that, The floating monitoring station (1) has a partition (46) fixed inside, and the water tank (41) is fixed on the partition (46).

4. The water environment pollution monitoring equipment according to claim 1, characterized in that, A water pipe (47) is fixed on one side of the water tank (41), the water pipe (47) is connected to the atomizing nozzle (43), and a solenoid valve (48) is fixed on the water pipe (47).

5. A water environment pollution monitoring device according to claim 1, characterized in that, The bottom of the pumping and mixing detector is fixed with a drain pipe (49), which is connected to the pumping and mixing detector. A valve (410) is fixed inside the drain pipe (49).

6. A water environment pollution monitoring device according to claim 1, characterized in that, An air supply pipe (411) is fixed to the top of the atomizing nozzle (43), and the air supply pipe (411) is connected to the atomizing nozzle (43).

7. A water environment pollution monitoring device according to claim 1, characterized in that, The bottom of the pumping mixing detector is fixed with a housing (412), and an impeller (413) is rotatably connected inside the housing (412). A motor (414) is fixed on one side of the housing (412), and the output shaft of the motor (414) is fixed to the impeller (413).

8. A water environment pollution monitoring device according to claim 1, characterized in that, The scraper (44) includes a three-way valve (441), a conduit (442), an air chamber (443), and a rotating wheel (444). The three-way valve (441) is fixed on the top of the air pump (42) and is connected to the air supply pipe (411); the conduit (442) is located on one side of the three-way valve (441) and is connected to the three-way valve (441); the air chamber (443) is fixed inside the floating monitoring station (1) and is connected to the air chamber (443), and the air chamber (443) has a vent hole inside; the rotating wheel (444) is rotatably connected inside the air chamber (443).

9. A water environment pollution monitoring device according to claim 8, characterized in that, The scraping component (44) also includes a rotating shaft (445), a rotating block (446), a pushing block (447), and a scraping strip (448). The rotating shaft (445) is fixed inside the rotating wheel (444); the rotating block (446) is fixed on the rotating shaft (445); the push block (447) is rotatably connected inside the rotating block (446) and slidably connected inside the floating monitoring station (1); the scraper (448) is fixed at the end of the push block (447) and abuts against the contact sensor.

10. A method of using the water environment pollution monitoring equipment as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Deploy the floating monitoring station (1) in the water area to be monitored; provide power for the operation of the equipment through solar panels (2); Start the detection device (3), use the contact sensor to detect the water body in situ, and use the pumping and mixing detector to extract water samples for mixed analysis, so as to realize continuous monitoring of water pollution indicators. S2. When it is necessary to clean the test piece (3), start the cleaning unit (4); the specific process includes: Jet cleaning: Turn on the air pump (42), and the airflow enters the atomizing nozzle (43) through the air supply pipe (411); using the negative pressure effect generated by the expansion and contraction structure inside the atomizing nozzle (43), the water in the water tank (41) is sucked in through the water pipe (47) and forms a gas-liquid mixed jet inside the atomizing nozzle (43) to flush the inside of the pumping mixed detector, the housing (412) and the impeller (413). The waste liquid after flushing is discharged through the drain pipe (49). Scraping cleaning: After the jet cleaning is completed, the airflow is diverted to the duct (442) through the three-way valve (441) and enters the air chamber (443) to drive the rotating wheel (444) to rotate; the rotating wheel (444) drives the rotating block (446) to move through the rotating shaft (445), which in turn pushes the push block (447) to make reciprocating linear motion, so that the scraper (448) fixed at the end of the push block (447) scrapes off the impurities attached to the surface of the contact sensor; S3. Natural precipitation is collected using a collection bucket (45), filtered by the filter inside the collection bucket (45), and then flows into the water tank (41) to achieve automatic water replenishment. The opening and closing of the cleaning process is controlled by controlling the solenoid valve (48) and the valve (410) on the drain pipe (49). After cleaning is completed, the equipment returns to the normal monitoring state, and this cycle is repeated to ensure the continuity of monitoring.

Citation Information

Patent Citations

  • Water pumping type sediment automatic monitoring station

    CN115792145A