CN111663487A - Water tank water adding early warning device, control method, water tank and watering cart - Google Patents

Abstract

The invention discloses a water tank water adding early warning device which comprises a control module, a detection module and a storage module, wherein the detection module and the storage module are respectively and electrically connected with the control module. Also discloses a water tank, a watering cart and a water tank water adding early warning control method. The water tank water adding early warning device, the control method, the water tank and the watering cart have the following advantages that: the method has the advantages that the residual water quantity of the water tank is initialized and calibrated by the ultrasonic sensor and the flow sensor, so that the program customization cost is saved; the residual water quantity calculation and the residual working time display meet the requirements of operators on residual water quantity display and sustainable working time, the universality of products is improved, and customized design is not required according to different shapes and sizes of water tanks.

Description

A water tank filling early warning device and control method, water tank and sprinkler

technical field

The invention relates to the technical field of construction machinery, in particular to a water tank filling early warning device and a control method, a water tank and a sprinkler.

Background technique

At present, the water tank liquid level warning function of water tank sanitation vehicles such as sprinklers, sweepers, and fog cannon vehicles on the market is poor and cannot meet the needs of customers. The general water tank warning function can only be used when the water tank is almost empty. The operator issues an alarm. Using this design, the driver cannot know how long the current water volume can be used, and cannot replenish the water in advance according to the available time. If there is no water, the driver will be reminded, and the driver will go to the nearest water replenishment point to replenish water, resulting in a great waste of energy. In addition, all the current sanitation vehicles do not display the time that the remaining water can continue to work.

According to the various sizes and shapes of water tanks on the market, we need a more general device to adapt to various irregular-shaped water tanks.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an early warning device for adding water to a water tank and a control method, a water tank and a sprinkler to solve the problems mentioned in the background art.

In order to achieve the above purpose, the specific technical solutions of a water tank adding early warning device and control method, a water tank and a sprinkler of the present invention are as follows:

An early warning device for adding water to a water tank, comprising a control module, a detection module and a storage module respectively electrically connected to the control module; a detection module for detecting the time difference t between pulses sent by an ultrasonic sensor of liquid level and received; The flow rate v of the flow sensor; the storage module is used to store the above t, v and T data every 1s; the control module is used to obtain the signal of the detection module, and the stored data t, v and T are used to calculate the remaining liquid corresponding to each water level height volume and store.

Further, the control module is also connected with a communication module for locating the current position and obtaining the nearest water intake point.

Further, the control module is also connected with a display module, and the display module is used for acquiring and displaying the signal of the communication module.

A water tank includes a tank body, and the tank body is provided with the water tank filling early warning device as described above.

Further, the box body is provided with an opening, a temperature sensor and an ultrasonic sensor are arranged at the opening, a liquid outlet is arranged at the bottom of the box body, a flow sensor is arranged at the liquid outlet, and a pipeline is connected to the flow sensor.

A sprinkler includes the above-mentioned water tank.

An early warning control method for adding water to a water tank, the method for early warning control of adding water to a water tank includes:

When the water tank is activated, start the sprinkler system, obtain the measurement parameters, store the above data and calculate the remaining liquid volume corresponding to each water level in the water tank;

When the sprinkler is driving on the road, the obtained real-time liquid level height is compared with the remaining liquid volume corresponding to each water level height of the water tank calculated above, and the remaining liquid volume corresponding to the page height is obtained.

Further, the control module synchronously collects the time difference t between the pulses sent and received by the liquid level ultrasonic sensor, the temperature T of the temperature sensor, and the flow rate v of the liquid flow sensor, and calculates the collected data to obtain the current liquid level height.

Further, after the interval of 1S, the second group of data is collected and stored, and the system has been collecting and storing data in a loop until the collection process is ended when the liquid flows out.

Further, when the sprinkler is driving on the road, the control module collects the round-trip time difference t of the ultrasonic pulse, the temperature T in the water tank, and calculates the current liquid level H. The control module compares the stored h of the system, and directly outputs the current remaining liquid volume when H=h. .

The water tank filling early warning device and control method, the water tank and the sprinkler of the present invention have the following advantages: an ultrasonic sensor and a flow sensor are provided to initialize and calibrate the remaining water volume of the water tank, which saves the cost of program customization; The calculation and the display of the remaining working time can meet the needs of the operator for the display of the remaining water volume and the continuous working time, and increase the versatility of the product, and there is no need to customize the design according to the shape and size of the water tank.

Description of drawings

Fig. 1 is the structural representation of the water tank of the present invention;

Fig. 2 is the flow chart of automatic calibration in the water tank adding water early warning control method of the present invention;

Fig. 3 is the flow chart of the detection step in the water tank adding water early warning control method of the present invention;

FIG. 4 is a schematic structural diagram of the water tank filling early warning control device of the present invention.

Numeral description in the figure: 1, temperature sensor; 2, ultrasonic sensor; 3, liquid outlet; 4, flow sensor; 41, pipe diameter; 5, GPS; 6, control module 6;

Detailed ways

In order to better understand the purpose, structure and function of the present invention, a water tank filling early warning device and control method, a water tank and a sprinkler of the present invention will be described in further detail below with reference to the accompanying drawings 1-4.

As shown in FIG. 4 , the present invention provides a water tank filling early warning device, which can be applied to water tanks of different shapes and volumes to meet the operator's needs for remaining water volume display and continuous working time. An early warning device for adding water to a water tank includes a control module 6, a detection module and a storage module electrically connected to the control module 6, respectively.

The detection module is used to detect the time difference t between the pulses sent by the liquid level ultrasonic sensor 2 and the received time; the temperature T of the temperature sensor 1 and the flow rate v of the liquid flow sensor 4;

a storage module for storing the above t, v and T data every 1s;

The control module 6 obtains the signal of the detection module, calculates the remaining liquid volume corresponding to each water level height from the stored data t, v and T, and stores it.

Further, the control module 6 is also connected with a communication module for locating the current position and obtaining the nearest water intake point; the control module 6 is also connected with a display module, which is used for obtaining and displaying the signal of the communication module.

As shown in FIG. 1 , the present invention provides a water tank, including a tank body, and the above-mentioned control device is arranged in the tank body.

The box body is provided with an opening, a temperature sensor 1 and an ultrasonic sensor 2 are arranged at the opening, a liquid outlet 3 is arranged at the bottom of the box body, a flow sensor 4 is arranged at the liquid outlet 3, the flow sensor 4 is connected with a pipeline, and the pipe diameter of the flow sensor 4 41 is r, so as to realize the calculation of the remaining volume of the water tank.

The present invention also provides a sprinkler, including the above-mentioned water tank.

As shown in Figures 2 and 3, the present invention provides a water tank adding water early warning control method, which specifically includes the following steps:

When the water tank is activated, start the sprinkler system, obtain the measurement parameters, store the above data and calculate the remaining liquid volume corresponding to each water level in the water tank;

When the sprinkler is driving on the road, the obtained real-time liquid level height is compared with the remaining liquid volume corresponding to each water level height of the water tank calculated above, and the remaining liquid volume corresponding to the page height is obtained.

Further, when the automatic calibration function of the water tank is turned on at the same time as the water discharge function (for a sprinkler, watering starts), this process cannot be interrupted. The control module 6 is used to synchronously collect the time difference t between the pulses sent by the liquid level ultrasonic sensor 2 and the received time, the temperature T of the temperature sensor 1, and the flow rate v of the liquid flow sensor 4, and the collected data is calculated to obtain the current liquid level height.

第二次采集的液面高度h₂对应的液体体积

直到液面放完最后一次的液面高度h_t对应的液体体积为

到此为止完成自动标定过程。The liquid level height h ₁ and the flow velocity v ₁ are stored, and the second set of data is collected and stored after an interval of 1 second. The system collects and stores data cyclically until the end of the collection process when the liquid flows v _t =0. After the collection is completed, the liquid is accumulated and calculated to obtain the remaining liquid volume corresponding to each water level height. So the liquid volume corresponding to the liquid level _h1 is

The liquid volume corresponding to the liquid level height h2 collected for the _second time

The liquid volume corresponding to the last liquid level height h _t until the liquid level is discharged is

This completes the automatic calibration process.

When the sprinkler is driving on the road, the control module 6 collects the round-trip time difference t of the ultrasonic pulse, the temperature T in the water tank, and calculates the current liquid level H. The control module 6 compares the stored h of the system, and directly outputs the current remaining liquid volume when H=h. When H and h are not the same, find the two most adjacent heights h _n-1 <H < h _n to approximate the remaining water volume, the formula

The remaining liquid volume corresponding to the H height is obtained, and the calculation of the remaining liquid volume is completed.

After the volume calculation is completed, the time that the remaining liquid can continue to work can be obtained through the current liquid flow rate. The calculation formula is: the time that the remaining liquid can continue to work t=f(H)/ν.

The sprinkler provided by the present invention also provides display and early warning, and displays the current remaining liquid volume f(H), the current liquid flow rate ν, and the remaining liquid sustainable working time on the display 7. The driver can set the alarm time X by himself. When the working time of the remaining liquid is less than X, the display 7 will issue an alarm to remind the driver. The control module 6 can be positioned according to the GPS 5, and display on the display 7 the current location of the vehicle and the nearest water intake point, and the driver can arrange to add water as needed.

The present invention provides an ultrasonic sensor 2 and a flow sensor 4 to initialize and calibrate the remaining water volume of the water tank, which greatly saves the cost of program customization. The demand for water volume display and sustainable working hours greatly increases the versatility of the product, and there is no need to customize the design according to different customers.

It can be understood that the present invention is described by some embodiments, and those skilled in the art know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, in the teachings of this invention, these features and embodiments may be modified to adapt a particular situation and material without departing from the spirit and scope of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application fall within the protection scope of the present invention.

Claims (10)

1. An early warning device for adding water to a water tank, characterized in that it comprises a control module (6), a detection module and a storage module that are electrically connected to the control module (6) respectively; the detection module is used to detect that the liquid level ultrasonic sensor (2) sends out The time difference t between the pulse and the received time; the temperature T of the temperature sensor (1), the flow rate v of the liquid flow sensor (4); the storage module, which is used to store the above t, v and T data at the same time interval; the control module, which obtains the detection The signal of the module will store the data t, v and T to calculate the remaining liquid volume corresponding to each water level height and store it. 2 . The water tank filling early warning device according to claim 1 , wherein the control module ( 6 ) is further connected with a communication module for locating the current position and obtaining the nearest water intake point. 3 . 3 . The water tank filling early warning device according to claim 2 , wherein the control module ( 6 ) is further connected with a display module, and the display module is used for acquiring and displaying the signal of the communication module. 4 . 4. A water tank, characterized in that it comprises a tank body, and the tank body is provided with the water tank filling early warning device according to any one of claims 1-3. 5. The water tank according to claim 4, characterized in that the tank body is provided with an opening, the opening is provided with a temperature sensor (1) and an ultrasonic sensor (2), a liquid outlet (3) is provided at the bottom of the tank body, and the liquid outlet is provided with a temperature sensor (1) and an ultrasonic sensor (2). (3) is provided with a flow sensor (4), and the flow sensor (4) is connected with a pipeline. 6. A sprinkler, characterized by comprising the water tank according to any one of claims 4-5. 7. An early warning control method for adding water to a water tank, wherein the early warning control method for adding water to a water tank comprises: When the water tank is activated, start the sprinkler system, obtain the measurement parameters, store the above data and calculate the remaining liquid volume corresponding to each water level in the water tank; When the sprinkler is driving on the road, the obtained real-time liquid level height is compared with the remaining liquid volume corresponding to each water level height of the water tank calculated above, and the remaining liquid volume corresponding to the page height is obtained. 8. The method for early warning control of adding water to a water tank according to claim 7, wherein the control module (6) synchronously collects the time difference t and the temperature T of the temperature sensor (1) that the ultrasonic sensor (2) sends out pulses and receives. , the flow rate v of the liquid flow sensor (4), and the current liquid level height is obtained by calculating the collected data. 9 . The water tank filling early warning control method according to claim 8 , wherein the second group of data is collected and stored after the interval of 1 s, and the system collects and stores data cyclically all the time until the collection process ends when the liquid runs out. 10 . 10. The water tank watering early warning control method according to claim 9, characterized in that, when the sprinkler is driving on the road, the control module (6) collects the ultrasonic pulse round-trip time difference t, the temperature in the water tank T, and calculates the current liquid face height H. The control module (6) compares the stored h of the system, and directly outputs the current remaining liquid volume when H=h.

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