A smart water gauge

Abstract

The present invention discloses a smart water gauge, including a control box and at least two water gauge units; the control box is provided with a circuit board, a battery, and a control module and a wireless communication module arranged on the circuit board; the water gauge unit includes an insulating shell, a sensor arranged in the shell, and the battery supplies power to the control module, the wireless communication module and the sensor; after the adjacent smart water gauge units are connected in sequence, the uppermost smart water gauge unit is connected to the control box, and the sensor is electrically connected to the circuit board through a wire. By connecting a plurality of water gauge units in sequence, a smart water gauge with a longer length is formed, and the water gauge is placed in a watershed to be measured. Through the sensors in the smart water gauge unit, the flow rate, liquid level, turbidity sensor, oxygen content, ammonia nitrogen content and pH value of water at different depths in the water area are detected, and transmitted to the smart water gauge unit controller, and then transmitted to the cloud server through the wireless transmission module of the controller, and then transmitted to the terminal through the cloud server, and the parameters at different depths can be tested at the same time, which is efficient and saves labor costs.

Description

Technical Field

[0001] The invention belongs to the technical field of water area detection equipment, and specifically relates to a smart water gauge. Background Art

[0002] In waters such as the Yangtze River and lakes, it is often necessary to monitor water flow rate, liquid level, turbidity sensors, oxygen content, ammonia nitrogen content, pH value and other parameters. There are many corresponding sensors in the prior art, but operators often use handheld detection equipment to test the data of the water at the test point and then record it manually. Each time, only the corresponding parameters at a certain depth can be tested, which is time-consuming and laborious and inefficient. Summary of the invention

[0003] The purpose of the present invention is to provide a smart water gauge to solve the technical problems in the prior art that the operator uses a handheld detection device to test the water data of the test point and then records it manually, and can only test the corresponding parameters at a certain depth each time, which is time-consuming, labor-intensive and inefficient.

[0004] In order to achieve the above purpose, the specific technical solution adopted by the present invention is:

[0005] A smart water gauge comprises a control box and at least two water gauge units;

[0006] The control box is provided with a circuit board, a battery, and a control module, a GPS positioning module and a wireless communication module arranged on the circuit board;

[0007] The water gauge unit comprises an insulating housing, a sensor arranged in the housing, and a battery supplies power to a control module, a wireless communication module, a GPS positioning module and the sensor;

[0008] After adjacent smart water gauge units are connected in sequence, the top smart water gauge unit is connected to the control box, and the sensor is electrically connected to the circuit board through a wire.

[0009] By connecting multiple water gauge units in sequence to form a long smart water gauge, the water gauge is placed in the watershed to be tested, and the flow rate, liquid level, turbidity sensor, oxygen content, ammonia nitrogen content and pH value of water at different depths in the water area are detected through the sensor in the smart water gauge unit, and transmitted to the smart water gauge unit controller, and then transmitted to the cloud server through the wireless transmission module of the controller, and then transmitted to the terminal through the cloud server for monitoring, viewing, recording, etc., which is convenient for detection and can test parameters at different depths at the same time, with high efficiency and saving labor costs. The terminal is a computer, mobile phone or / and tablet computer, etc.

[0010] By setting up the smart water gauge unit, the number of smart water gauge units can be selected according to needs to be assembled into different lengths; two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit. When the two adjacent smart water gauge units are connected, the pin of the first water gauge unit connector is inserted into the corresponding jack of the second water gauge unit socket, and the locking piece is sealed and connected to the fixing seat, which is convenient for disassembly and assembly and easy to carry.

[0011] The GPS positioning module sends the water gauge location information to the cloud server through the wireless communication module, and then sends it to the user terminal through the cloud server, marking the exact location of the water gauge on the map of the user terminal for easy viewing.

[0012] Further optimized, a first connector is provided at the lower end of the control box;

[0013] The two ends of the housing of the water gauge unit are provided with a first connector and a second connector;

[0014] Two adjacent smart water gauge units are respectively recorded as a first water gauge unit and a second water gauge unit, and a first connector of the first water gauge unit and a second connector of the second water gauge unit;

[0015] The second connector of the uppermost water gauge unit is connected to the first connector at the lower end of the control box;

[0016] The bottom of the water gauge unit located at the tail of the smart water gauge is not provided with a first connector, but only with a second connector.

[0017] Further optimized, the first connector includes a plug connector and a locking member arranged on the plug connector; the plurality of pins arranged at the end of the plug connector;

[0018] The second connector includes a fixing base and a socket arranged on the fixing base, wherein the socket is provided with the same number of jacks as the number of pins;

[0019] The two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit. When the two adjacent smart water gauge units are connected, the pin of the first water gauge unit connector is inserted into the corresponding jack of the second water gauge unit socket, which is easy to operate. At the same time, the locking piece is sealed and connected to the fixing seat, and the sealing effect is good, which prevents water leakage at the connection between the first connector and the second connector and causes a short circuit.

[0020] The data detected by the sensor of the smart water gauge unit is transmitted to the controller in sequence through the pins.

[0021] Further optimized, the plug connector includes a connecting piece and a plug-in piece, the connecting piece and the plug-in piece are both cylindrical or truncated cone bodies, and the two are connected and coaxially arranged, wherein the diameter of the connecting piece is larger than that of the plug-in piece;

[0022] One end of the connector close to the plug-in connector protrudes outwardly along the circumferential direction to form an annular first pressure ring;

[0023] When two adjacent smart water gauge units are connected, one end of the locking member of the first water gauge unit presses the first pressure ring, and the other end corresponds to the fixing seat of the second water gauge unit. A first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit. The first pressure ring is integrally formed with the connecting member. By arranging the pressure ring, the two smart water gauge units are connected, and the first pressure ring presses the first sealing ring, which has a good waterproof effect.

[0024] Further optimized, the locking member is a cylindrical structure with a bottom but no cover, a first through hole is opened at the bottom of the locking member, the locking member is movably sleeved on the connecting member through the first through hole, and the diameter of the first through hole is smaller than the diameter of the first pressure ring;

[0025] The inner wall of the barrel-shaped structure of the locking member is provided with an internal thread; the fixing seat of the second connector is a cylinder or a truncated cone, and the outer wall of the fixing seat is provided with an external thread;

[0026] When two adjacent smart water gauge units are connected, the locking piece of the first water gauge unit is mounted on the corresponding fixing seat of the second water gauge unit, and the two are threadedly connected; a first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit, and at the same time, a second sealing ring is also arranged between the bottom of the locking piece of the first water gauge unit and the pressure ring.

[0027] The threaded connection has good structural stability and is easy to assemble and disassemble. The second sealing ring is provided to further improve the waterproof sealing performance.

[0028] Further optimization, the end of the locking piece of the barrel-shaped structure away from the pressure ring is folded outward and extended to form a second pressure ring, and the outer edge of the second pressure ring is folded inward to form a flange, that is, the inner cavity of the locking piece is a stepped hole;

[0029] A stepped protrusion is provided on the outer wall of the fixing seat of the second connector, including a first stepped surface and a second stepped surface;

[0030] When two adjacent smart water gauge units are connected, the second pressure ring of the locking piece of the first water gauge unit is pressed on the first step surface, the flange presses the second step surface, and a third sealing ring is arranged between the second pressure ring and the first step surface.

[0031] By setting the inner cavity of the locking piece as a stepped hole, providing a stepped protrusion on the outer wall of the fixing seat, and providing a third sealing ring between the second pressure ring and the first stepped surface, the waterproof and sealing performances are further improved; the flange plays a protective and limiting role.

[0032] Further optimized, a first cavity is opened on the fixing base of the second connector, and the socket is embedded in the first cavity;

[0033] A limiting groove is provided on the inner wall of the fixing seat, and a limiting block is provided on the outer wall of the socket, and the limiting block is clamped in the limiting groove;

[0034] Alternatively, a limiting block is arranged on the inner wall of the fixing seat, and the limiting block is clamped in the limiting groove of the outer wall of the socket.

[0035] By setting the limit block and the limit groove, the fixing seat and the socket are firmly connected to prevent shaking and displacement between the two, thereby improving the structural stability.

[0036] Further optimization, the shell is provided with one or more of a liquid level sensor, a flow sensor, a turbidity sensor, an oxygen content detection sensor, an ammonia nitrogen sensor and a pH value detection sensor.

[0037] Further optimized, the liquid level sensor includes a circuit board arranged in the housing, and a plurality of sensitive elements arranged on the circuit board along the length direction thereof, and scale lines are arranged on the housing, and each sensitive element corresponds to a corresponding scale line; the sensitive element is exposed outside the housing and serves as an anode of the liquid level detection circuit;

[0038] The bottom of the housing is provided with a metal block electrically connected to the circuit board, serving as the cathode of the liquid level detection circuit;

[0039] The pin of the first connector is electrically connected to the circuit board, and the metal contact in the socket of the second connector is electrically connected to the circuit board.

[0040] Insert the water gauge into the water area to be tested. Since water is conductive, the sensitive element in the water is connected to the metal block through the water to form a loop. When different sensitive elements are turned on, the corresponding current value of the detection circuit is different. The control module calculates the current value in the detection circuit and obtains the corresponding liquid level value, so that different current values ​​correspond to a scale line on the detection ruler one by one. It is easy to operate and has high detection accuracy.

[0041] Further optimization, an angle sensor is also provided in the housing. Since the water gauge is long, the water flow rate is different at different depths, so the smart water gauge will tilt in the water. The angle sensor measures the tilt angle of each smart water gauge unit and sends it to the controller. The controller can calculate the corresponding water level depth and the flow rate at the depth according to the tilt angle.

[0042] Further optimization, the shell is cylindrical as a whole, and is composed of two half shells with semicircular end faces. It is easy to produce, process and assemble, and the two half shells are fastened and connected by screws, and the connection is treated with sealant.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] By connecting multiple water gauge units in sequence to form a long smart water gauge, the water gauge is placed in the watershed to be tested, and the flow rate, liquid level, turbidity sensor, oxygen content, ammonia nitrogen content and pH value of water at different depths in the water area are detected through the sensor in the smart water gauge unit, and transmitted to the smart water gauge unit controller, and then transmitted to the cloud server through the wireless transmission module of the controller, and then transmitted to the terminal through the cloud server for monitoring, viewing, recording, etc., which is convenient for detection and can test parameters at different depths at the same time, with high efficiency and saving labor costs. The terminal is a computer, mobile phone or / and tablet computer, etc.

[0045] By setting up the smart water gauge unit, the number of smart water gauge units can be selected according to needs to be assembled into different lengths; two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit. When the two adjacent smart water gauge units are connected, the pin of the first water gauge unit connector is inserted into the corresponding jack of the second water gauge unit socket, and the locking piece is sealed and connected to the fixing seat, which is convenient for disassembly and assembly and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the smart water gauge of the present invention.

[0047] Figure 2 This is an enlarged view of the control box.

[0048] Figure 3 It is a schematic diagram of a water gauge unit of the present invention.

[0049] Figure 4 for Figure 3 AA section view.

[0050] Figure 5 This is a schematic diagram of the structure of the connection between two adjacent smart water gauge units.

[0051] Figure 6 Schematic diagram of the structure of the second connector. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0053] Embodiment 1:

[0054] like Figure 1-6As shown, a smart water gauge comprises a control box 300 and two water gauge units; the control box is provided with a circuit board, a battery, and a control module, a GPS positioning module and a wireless communication module arranged on the circuit board; the water gauge unit comprises an insulating shell, a sensor arranged in the shell, the battery supplies power to the control module, the wireless communication module, the GPS positioning module and the sensor, and the control box is also provided with an antenna 301.

[0055] A first connector 2 is provided at the lower end of the control box; the two water gauge units are respectively denoted as the first water gauge unit 100 and the second water gauge unit 200, wherein the first water gauge unit is provided with a first connector 2 and a second connector 3 at both ends of the shell; the second connector 3 of the first water gauge unit 100 is connected to the first connector 1 at the lower end of the control box 300; and the second water gauge 200 unit is not provided with a first connector at the bottom.

[0056] By connecting multiple water gauge units in sequence to form a long smart water gauge, the water gauge is placed in the watershed to be tested, and the flow rate, liquid level, turbidity sensor, oxygen content, ammonia nitrogen content and pH value of water at different depths in the water area are detected through the sensor in the smart water gauge unit, and transmitted to the smart water gauge unit controller, and then transmitted to the cloud server through the wireless transmission module of the controller, and then transmitted to the terminal through the cloud server for monitoring, viewing, recording, etc., which is convenient for detection and can test parameters at different depths at the same time, with high efficiency and saving labor costs. The terminal is a computer, mobile phone or / and tablet computer, etc.

[0057] By setting up the smart water gauge unit, the number of smart water gauge units can be selected according to needs to be assembled into different lengths; two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit. When the two adjacent smart water gauge units are connected, the pin of the first water gauge unit connector is inserted into the corresponding jack of the second water gauge unit socket, and the locking piece is sealed and connected to the fixing seat, which is convenient for disassembly and assembly and easy to carry.

[0058] The GPS positioning module sends the water gauge location information to the cloud server through the wireless communication module, and then sends it to the user terminal through the cloud server, marking the exact location of the water gauge on the map of the user terminal for easy viewing.

[0059] In other embodiments, the number of water gauge units may be three or more. Two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit, the first connector of the first water gauge unit and the second connector of the second water gauge unit; the second connector of the uppermost water gauge unit is connected to the first connector at the lower end of the control box; the bottom of the water gauge unit located at the tail of the smart water gauge is not provided with the first connector, but only with the second connector.

[0060] In this embodiment, the housing 1 of the water gauge unit is cylindrical in shape and consists of two half shells with semicircular end faces. For ease of production, processing and assembly, the two half shells are fastened together by screws, and the joints are treated with sealant.

[0061] In this embodiment, the first connector 2 includes a plug connector 21 and a locking member 22 disposed on the plug connector 21; a plurality of pins 7 are disposed at the end of the plug connector;

[0062] The second connector 3 includes a fixing base 31 and a socket 32 ​​disposed on the fixing base, and the socket 32 ​​is provided with the same number of jacks 321 as the number of the pins 7;

[0063] The two adjacent smart water gauge units are respectively recorded as the first water gauge unit and the second water gauge unit. When the two adjacent smart water gauge units are connected, the pin of the first water gauge unit connector is inserted into the corresponding jack of the second water gauge unit socket, which is easy to operate. At the same time, the locking piece is sealed and connected to the fixing seat, and the sealing effect is good, which prevents water leakage at the connection between the first connector and the second connector and causes a short circuit.

[0064] The data detected by the sensor of the smart water gauge unit is transmitted to the controller in sequence through the pins.

[0065] In this embodiment, the plug connector 21 includes a connecting member 211 and a plug connector 212, wherein the connecting member 211 is a truncated cone and the plug connector 212 is a cylinder, and the two are connected and coaxially arranged, wherein the diameter of the connecting member 211 is larger than that of the plug connector 212;

[0066] One end of the connecting member 211 close to the plug-in member 212 protrudes outward along the circumferential direction to form an annular first pressure ring 213 .

[0067] When two adjacent smart water gauge units are connected, one end of the locking member of the first water gauge unit presses the first pressure ring, and the other end corresponds to the fixing seat of the second water gauge unit. A first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit. The first pressure ring is integrally formed with the connecting member. By arranging the pressure ring, the two smart water gauge units are connected, and the first pressure ring presses the first sealing ring 8, which has a good waterproof effect.

[0068] In this embodiment, the locking member 22 is a cylindrical structure with a bottom but no cover, and a first through hole is opened at the bottom of the locking member. The locking member 22 is movably mounted on the connecting member 211 through the first through hole, and the diameter of the first through hole is smaller than the diameter of the first pressure ring 213.

[0069] The inner wall of the barrel-shaped structure of the locking member 22 is provided with an internal thread; the fixing seat 31 of the second connector is a cylinder, and the outer wall of the fixing seat 31 is provided with an external thread;

[0070] When two adjacent smart water gauge units are connected, the locking piece of the first water gauge unit is set on the fixing seat of the corresponding second water gauge unit, and the two are threadedly connected; a first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit, and at the same time, a second sealing ring 9 is also arranged between the bottom of the locking piece of the first water gauge unit and the pressure ring. The threaded connection has good structural stability and is easy to disassemble and assemble. By setting the second sealing ring, the waterproof sealing performance is further improved.

[0071] In other embodiments, the locking member 22 may be of other structures as long as the first connector of the first water gauge unit and the corresponding second connector of the second water gauge unit can be securely and hermetically connected.

[0072] In this embodiment, one end of the barrel-shaped locking member 22 away from the first pressure ring is folded outward and extended to form a second pressure ring, and the outer edge of the second pressure ring is folded inward to form a flange 221, that is, the inner cavity of the locking member is a stepped hole;

[0073] A stepped protrusion is provided on the outer wall of the fixing seat 31 of the second connector 3, including a first stepped surface 312 and a second stepped surface 313;

[0074] When two adjacent smart water gauge units are connected, the second pressure ring of the locking member of the first water gauge unit is pressed on the first step surface 312, the flange 221 presses the second step surface 313, and a third sealing ring 10 is arranged between the second pressure ring and the first step surface.

[0075] By setting the inner cavity of the locking piece as a stepped hole, providing a stepped protrusion on the outer wall of the fixing seat, and providing a third sealing ring between the second pressure ring and the first stepped surface, the waterproof and sealing performances are further improved; the flange plays a protective and limiting role.

[0076] In this embodiment, a first cavity is formed on the fixing base 31 of the second connector 3, and the socket 32 ​​is embedded in the first cavity;

[0077] The inner wall of the fixing seat 31 is provided with a limiting groove 311, and the outer wall of the socket is provided with a limiting block, which is clamped in the limiting groove;

[0078] By setting the limit block and the limit groove, the fixing seat and the socket are firmly connected to prevent shaking and displacement between the two, thereby improving the structural stability.

[0079] In other embodiments, a limiting block is provided on the inner wall of the fixing seat, and the limiting block is clamped in the limiting groove of the outer wall of the socket.

[0080] In this embodiment, a liquid level sensor, a flow sensor, a turbidity sensor, an oxygen content detection sensor, an ammonia nitrogen sensor and a pH value detection sensor are arranged in the shell.

[0081] In other embodiments, one or more of a liquid level sensor, a flow sensor, a turbidity sensor, an oxygen content detection sensor, an ammonia nitrogen sensor, and a pH value detection sensor are disposed in the housing.

[0082] In this embodiment, the liquid level sensor includes a circuit board 5 arranged in a housing, and a plurality of sensitive elements 4 arranged on the circuit board along its length direction. The housing is provided with scale lines, and each sensitive element corresponds to a corresponding scale line. The sensitive element is exposed outside the housing and serves as an anode of the liquid level detection circuit.

[0083] The bottom of the housing is provided with a metal block 6 electrically connected to the circuit board, serving as the cathode of the liquid level detection circuit;

[0084] The pin of the first connector is electrically connected to the circuit board, and the metal contact in the socket of the second connector is electrically connected to the circuit board.

[0085] Insert the water gauge into the water area to be tested. Since water is conductive, the sensitive element in the water is connected to the metal block through the water to form a loop. When different sensitive elements are turned on, the corresponding current value of the detection circuit is different. The control module calculates the current value in the detection circuit and obtains the corresponding liquid level value, so that different current values ​​correspond to a scale line on the detection ruler one by one. It is easy to operate and has high detection accuracy.

[0086] The other parts are the same as those in the first embodiment.

[0087] Embodiment 2:

[0088] In this embodiment, an angle sensor, a turbidity sensor, an oxygen content detection sensor, an ammonia nitrogen sensor and a pH value detection sensor are arranged in the shell.

[0089] Since the water gauge is long and the water flow rate is different at different depths, the smart water gauge will tilt in the water. The angle sensor measures the tilt angle of each smart water gauge unit and sends it to the controller. The controller can calculate the corresponding water level depth and the flow rate at the depth according to the tilt angle. There is no need to set up liquid level sensors and flow sensors, saving costs.

[0090] The other parts are the same as those in the first embodiment.

[0091] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention; any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A smart water gauge, characterized in that: It includes a control box and at least two water gauge units; The control box is provided with a circuit board, a battery, and a control module, a GPS positioning module and a wireless communication module arranged on the circuit board; The water gauge unit comprises an insulating housing, a sensor arranged in the housing, and a battery supplies power to a control module, a wireless communication module, a GPS positioning module and the sensor; After the adjacent smart water gauge units are connected in sequence, the top smart water gauge unit is connected to the control box, and the sensor is electrically connected to the circuit board through a wire; the GPS positioning module sends the float position information to the cloud server through the wireless communication module, and then sends it to the user terminal through the cloud server, marking the exact location of the water gauge on the map of the user terminal for easy viewing; The lower end of the control box is provided with a first connector; The two ends of the housing of the water gauge unit are provided with a first connector and a second connector; Two adjacent smart water gauge units are respectively recorded as a first water gauge unit and a second water gauge unit, and a first connector of the first water gauge unit and a second connector of the second water gauge unit; The second connector of the uppermost water gauge unit is connected to the first connector at the lower end of the control box; The bottom of the water gauge unit located at the tail of the smart water gauge is not provided with a first connector, but only with a second connector; The first connector includes a plug connector and a locking member disposed on the plug connector; a plurality of pins disposed at the end of the plug connector; The second connector includes a fixing base and a socket arranged on the fixing base, wherein the socket is provided with the same number of jacks as the number of pins; When two adjacent smart water gauge units are connected, the pin of the first water gauge unit plug connector is inserted into the corresponding jack of the second water gauge unit socket, and the locking piece is sealed and connected with the fixing seat; The plug connector includes a connecting piece and a plug-in piece, both of which are cylindrical or truncated cone bodies, and the two are connected and coaxially arranged, wherein the diameter of the connecting piece is larger than that of the plug-in piece; One end of the connector close to the plug-in connector protrudes outwardly along the circumferential direction to form an annular first pressure ring; When two adjacent smart water gauge units are connected, one end of the locking member of the first water gauge unit presses the first pressure ring, and the other end corresponds to the fixing seat of the second water gauge unit. A first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit. The locking member is a cylindrical structure with a bottom but no cover, a first through hole is opened at the bottom of the locking member, the locking member is movably sleeved on the connecting member through the first through hole, and the diameter of the first through hole is smaller than the diameter of the first pressure ring; The inner wall of the barrel-shaped structure of the locking member is provided with an internal thread; The fixing seat of the second connector is a cylinder or a truncated cone, and an external thread is arranged on the outer wall of the fixing seat; When two adjacent smart water gauge units are connected, the locking piece of the first water gauge unit is sleeved on the fixing seat of the corresponding second water gauge unit, and the two are threadedly connected; a first sealing ring is arranged between the first pressure ring of the first water gauge unit and the fixing seat of the second water gauge unit, and at the same time, a second sealing ring is also arranged between the bottom of the locking piece of the first water gauge unit and the pressure ring; The end of the locking piece of the barrel-shaped structure away from the pressure ring is folded outward and extended to form a second pressure ring, and the outer edge of the second pressure ring is folded inward to form a flange, that is, the inner cavity of the locking piece is a stepped hole; A stepped protrusion is provided on the outer wall of the fixing seat of the second connector, including a first stepped surface and a second stepped surface; When two adjacent smart water gauge units are connected, the second pressure ring of the locking member of the first water gauge unit is pressed on the first step surface, the flange presses the second step surface, and a third sealing ring is arranged between the second pressure ring and the first step surface; The shell body is cylindrical in shape as a whole and consists of two half shells with semicircular end faces.

2. The smart water gauge according to claim 1, characterized in that: A first cavity is formed on the fixing base of the second connector, and the socket is embedded in the first cavity; A limiting groove is provided on the inner wall of the fixing seat, and a limiting block is provided on the outer wall of the socket, and the limiting block is clamped in the limiting groove; Alternatively, a limiting block is arranged on the inner wall of the fixing seat, and the limiting block is clamped in the limiting groove of the outer wall of the socket.

3. The smart water gauge according to claim 2, characterized in that: The shell is provided with one or more of a liquid level sensor, a flow sensor, a turbidity sensor, an oxygen content detection sensor, an ammonia nitrogen sensor and a pH value detection sensor.

4. The smart water gauge according to claim 3, characterized in that: The liquid level sensor comprises a circuit board arranged in a housing, and a plurality of sensitive elements arranged on the circuit board along the length direction thereof, and scale lines are arranged on the housing, and each sensitive element corresponds to a corresponding scale line; the sensitive element is exposed outside the housing and serves as an anode of the liquid level detection circuit; The bottom of the housing is provided with a metal block electrically connected to the circuit board, serving as the cathode of the liquid level detection circuit; The pin of the first connector is electrically connected to the circuit board, and the metal contact in the socket of the second connector is electrically connected to the circuit board.

5. The smart water gauge according to claim 4, characterized in that: An angle sensor is also arranged in the housing.

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