[Meter's Latest Patent] Smart Water Meter with Water Leakage Monitoring
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Description of the Invention The utility model relates to the field of water meters, in particular to a smart water meter with leakage monitoring function.
BACKGROUND OF THE INVENTION At present, there are a wide variety of water-saving devices or systems at home and abroad, which are widely used in agricultural irrigation, industrial production, household water, etc., and agricultural irrigation systems, toilet toilets that are small enough to be used for household use, and everywhere people's water-saving ideas are embodied. . There are many types of devices based on family water saving, such as water-saving toilets, water-saving faucets, water-saving washing machines, and water-saving control systems. However, there is no specific solution to the problem of the water dragon not closing tightly and the tap forgetting to turn off the water and causing water waste. A tap that does not matter, it can drain 1 to 6 cubic meters of water a month; a leaky toilet that drains 3 to 25 cubic meters of water a month; a city if there are 600,000 taps that are not tight, 200,000 A leaking toilet can lose hundreds of millions of cubic meters of water a year. Therefore, it is necessary to save water in daily life.
At the same time, water leakage often occurs in life due to aging, leaking, cracking of water pipes, failure of taps, or forgetting to close water. This not only results in wastage of water resources, increases in water charges, but also threatens buildings and causes damage to houses and property, especially at the same time. In densely populated areas, leakage of water at one location may cause damage to multiple units in the adjacent and lower levels, causing inconvenience to the daily lives of residents. Or in places such as high-end hotels, it may happen that flooding may cause floods. This may seriously harm the high-end facilities in the hotel. This is not uncommon in real life.
SUMMARY OF THE INVENTION In view of the deficiencies of the prior art, the purpose of the utility model is to provide a smart water meter with leakage monitoring function and an intelligent control method thereof with high accuracy, comprehensive monitoring function, low cost and low maintenance frequency. 
A schematic sectional view of a smart water meter according to the present invention is shown in section
The auxiliary impeller (300) is combined with the sensor and the controller (200) to realize the monitoring of the water leakage and the microleakage of the water pipe. When the leakage occurs, the water can be cut off in time and the effect of reducing the waste of water resources can be achieved. At the same time, through the design of the one-way valve (400) and the fine hole (4022), a microscopic water flow expanding effect is achieved and the structure is simple and the manufacturing cost is low.
The above technical solution is further designed: the controller (200) includes an impeller rotation counting module for counting the number of rotations of the auxiliary impeller (300) and having a rated maximum rotation number in continuous time, A first timing module for counting the number of revolutions of the auxiliary impeller (300) and having a first rated maximum duration in continuous time, an impeller revolution count clearing module for clearing a count value of the impeller revolution counting module A first timing clearing module for clearing the timing value of the first timing module and a solenoid valve control module for controlling the solenoid valve (700).
Through the controller (200), the impeller revolution counting module, the impeller revolution count clearing module, the first timing module, the first timing clearing module, and the solenoid valve (700) control module achieve an intelligent monitoring effect, thereby improving the control precision.
At the same time, the controller (200) is provided with a rated revolution input module for inputting the rated maximum revolutions of the impeller revolution counting module and a first rated timing for inputting the first rated maximum duration of the first timing module. Input module. This makes it easy and flexible to adjust the nominal value by setting the rated speed input module and the first rated time input module, thereby improving the applicable performance and practical performance of the water meter.
The controller (200) is provided with a wireless control module. Through the wireless control module, the water meter can be controlled by a wireless terminal such as a mobile phone. The control range includes the display of the water meter reading and the input module of the rated rotation speed. The value adjustment controls the opening and closing of the solenoid valve (700). And then to achieve the effect of high-end wireless intelligent operation.
The water meter body (100) of the present invention has a water meter impeller built in, and the water meter impeller is provided with a sensor for monitoring the water meter impeller. The water meter impeller is monitored by the sensor. When the sensor water meter impeller is not working, and the sensor-sensing auxiliary impeller is working, after the auxiliary impeller continues for a relatively short time, the micro-leakage of the water pipe is judged and the solenoid valve can be closed at this time. This shortens the time for micro leaks and reduces the amount of waste.
The controller is also provided with a second timing module for timing the rotation of the auxiliary impeller when the water meter impeller is stopped and the auxiliary impeller is working, and the second timing module is provided with a second rated maximum duration of one-time continuous rotation. When the timing exceeds the second rated maximum duration, the solenoid valve is closed by the controller (200). The controller further includes a second rated duration input module for inputting the second rated maximum duration and clearing the timing of the second timing module. a zero second timing clearing module, wherein the second rated maximum duration is less than the first rated maximum duration. By monitoring the impeller condition of the water meter, the condition of the micro leakage is judged, thereby shortening the time for the determination of the micro leakage, thereby reducing the waste of water resources.
An intelligent water meter intelligent control method includes a micro leak monitoring method and a burst monitoring method.
The microleakage control method is as follows: when the sensor senses that the water meter impeller is rotating, and there is a pressure difference on both sides of the one-way valve (400) but less than the rated pressure difference, the one-way valve (400) is in the closed state. There is a pressure difference in the micro-leakage, the water flow is injected through the pores (4022) to the impeller and the auxiliary impeller (300) is rapidly rotated under the pressure difference driven, and the inductor passes through the controller when the auxiliary auxiliary impeller (300) rotates The first timing module of (200) is timed, when it reaches the first rated maximum time, it is determined as water leakage. At this time, the solenoid valve (700) is controlled to be closed by the solenoid valve control module; otherwise, it is cleared through the first time. The module clears the data and enters the waiting period. When the sensor senses that the water meter impeller stops rotating, and the pressure difference between the two sides of the one-way valve (400) is less than the rated pressure difference, the one-way valve (400) is closed. In the state, since there is a pressure difference in the micro-leakage, the water flow is injected through the fine hole (4022) to the impeller and the auxiliary impeller (300) is rapidly rotated by the pressure difference, and the inductor When the induction auxiliary impeller (300) rotates, it is timed by the second timing module of the controller (200), and when it reaches the second rated maximum time, it is judged to be water leakage. At this time, the solenoid valve is controlled by the solenoid valve control module (700). ) Close, otherwise, clear the data through the second timing clear module and enter the waiting period.
The explosion control method is as follows: when there is a pressure difference between two sides of the one-way valve (400) but greater than the rated pressure difference, the one-way valve (400) opens the auxiliary impeller (300) and rotates through the controller (200). The impeller rotation counting module counts and determines that it is leaking when reaching the maximum rated rotation at one time. At this time, it is closed by the solenoid valve (700); otherwise, the data is cleared by the impeller rotation counting and clearing module, and Enter the waiting period.
The above waiting period is the waiting time for the auxiliary impeller to stop rotating until the next rotation, and through its monitoring method, the water meter can monitor the water leakage of the water pipe, and the monitoring logic method is simple and the monitoring accuracy is high.
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