CN202255554U

CN202255554U - Wireless liquid level measurement device

Info

Publication number: CN202255554U
Application number: CN2011204027787U
Authority: CN
Inventors: 卢超; 王艳红
Original assignee: Shaanxi University of Technology
Current assignee: Shaanxi University of Technology
Priority date: 2011-10-21
Filing date: 2011-10-21
Publication date: 2012-05-30
Anticipated expiration: 2021-10-21

Abstract

The utility model discloses a wireless liquid level measurement device. The device comprises a lower computer, a main computer and an upper computer visual basic (VB) system, wherein the lower computer comprises a lower singlechip; the lower singlechip is connected with a liquid level acquisition circuit, a water pump control circuit and a wireless module; the liquid level acquisition circuit is an ultrasonic ranging module; the main computer comprises a main singlechip; and the main singlechip is connected with a wireless module, an alarm circuit, a key circuit and a liquid crystal display screen. The device can remotely and wirelessly measures a liquid level in real time, replaces the traditional buoyancy and cable liquid level measuring instruments, and is high in data result accuracy and convenient to control.

Description

A kind of wireless liquid level emasuring device

Technical field

The utility model relates to a kind of wireless liquid level emasuring device, belongs to the remote control technology field.

Background technology

No matter water is commercial production or civilian drinking-water as the essential resource of human survival, all needs a water storage device undoubtedly; And water tower is the most common a kind of water storage equipment in actual life.Based on the design feature of water tower, it must have certain height, has enough hydraulic pressure to satisfy; Brought inconvenience so just for the real-time monitoring of water level.Adopt conventional measurement in the reality mostly, promptly adopt the cursory device of water, utilize buoyancy of water and cursory gravity to come Drive and Control Circuit to realize retaining.Classic method has many shortcomings; One of which can not be monitored the current height of water in real time; Its two, can not realize real-time ground control; Its three, durable, reliability are low.Therefore we need a kind of cheap, easy to use and measure level gauging instrument accurately.In addition; If can import computer into collecting water level information; Utilize all kinds of analysis software of PC that it is monitored in real time, analyzes and handles again, show curves of water level, set up out a kind of convenient management, easy and simple to handle, reliable high-level efficiency control system will be very significant.Also be current testing tool at a high speed, an important directions of convenient, web development.

The utility model content

The purpose of the utility model provides a kind of wireless liquid level emasuring device; Can carry out in real time test automatically to each water tower of factory, the SEA LEVEL VARIATION situation of reservoir; In case abnormal occurrence occurring is convenient in time analyze and handle; Will improve the foresight and the work efficiency of water-holding capacity, accident effectively, important actual promotional value is arranged.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:

A kind of wireless liquid level emasuring device comprises slave computer, status of a sovereign machine and host computer VB system, and said slave computer comprises the next single-chip microcomputer; The next single-chip microcomputer is connected with liquid level Acquisition Circuit, water pump control circuit and wireless module, and said liquid level Acquisition Circuit is a ultrasonic distance measuring module, and said status of a sovereign machine comprises status of a sovereign single-chip microcomputer; Status of a sovereign single-chip microcomputer is connected with wireless module; Warning circuit, key circuit and LCDs, ultrasonic distance measuring module are installed in container top, with liquid level over against.

Said ultrasonic distance measuring module comprises circuit board, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver.

Slave computer mainly realize data collection, data processing, data transmission and reception and drive water supply circuit; Status of a sovereign machine is mainly realized Data Receiving transmission, data presentation, is communicated by letter with PC, initial value is set and overload alarm; Host computer VB system mainly realizes the real-time demonstration of water level, limit value and curves of water level.

The utility model through the liquid level Acquisition Circuit be ultrasonic distance measuring module measure the water surface to the water tower top apart from S, S is delivered to single-chip microcomputer carries out data-switching.Single-chip microcomputer becomes character type with the data-switching that collects, so that be sent to main frame through wireless module.Main frame is sent into single-chip microcomputer and is converted thereof into numeric type after receiving the character array that slave sends, so that calculate with water tower height (h), peak level (MAX), the lowest water level (MIN) of key circuit input and compare.Single-chip microcomputer converts the value of the high h-S of water tower to character type once more and sends into liquid crystal and show, simultaneously difference and maximal value is compared, if then start warning device during greater than MAX.Then wireless module sends an instruction to slave when water level is lower than lowest water level (MIN), is used to drive relay and realizes the automatic water-storage function.

This device selects for use ultrasonic distance measuring module as BL, utilizes the remote data transmission of wireless module that data are sent in real time and received.Show delivering to liquid crystal display after the data in real time processing that receives, on host computer, show in real time and the drawing data curve through delivering to PC after the level conversion through serial ports simultaneously.

The beneficial effect of the utility model is:

But the utility model remote-wireless liquid level is measured in real time, has replaced traditional floatage-type and cable type fluid level measuring instrument, and the data result precision is high, control is convenient.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural principle block diagram of the utility model;

Fig. 2 is the synoptic diagram of ultrasonic distance measuring module in the utility model.

Embodiment

A kind of wireless liquid level emasuring device; Comprise slave computer, status of a sovereign machine and host computer VB system, said slave computer comprises the next single-chip microcomputer, and the next single-chip microcomputer is connected with liquid level Acquisition Circuit, water pump control circuit and wireless module; Said liquid level Acquisition Circuit is a ultrasonic distance measuring module; Said status of a sovereign machine comprises status of a sovereign single-chip microcomputer, and status of a sovereign single-chip microcomputer is connected with wireless module, warning circuit, key circuit and LCDs.

Said ultrasonic distance measuring module comprises circuit board 2, ultrasonic transmission device 3 and ultrasonic probe, ultrasonic receiver 4, and ultrasonic distance measuring module is installed in water tower top, with liquid level 1 over against.

The utility model through the liquid level Acquisition Circuit be ultrasonic distance measuring module measure the water surface to the water tower top apart from S, S is delivered to single-chip microcomputer carries out data-switching.Single-chip microcomputer becomes character type with the data-switching that collects, so that be sent to main frame through the nRF24L01 wireless module.Main frame is sent into single-chip microcomputer and is converted thereof into numeric type after receiving the character array that slave sends, so that calculate with water tower height (h), peak level (MAX), the lowest water level (MIN) of key circuit input and compare.Single-chip microcomputer converts the value of the high h-S of water tower to character type once more and sends into liquid crystal and show, simultaneously difference and maximal value is compared, if then start warning device during greater than MAX.When water level is lower than lowest water level (MIN), then send an instruction to slave, be used to drive relay and realize the automatic water-storage function through nFR24L01.

More than the disclosed specific embodiment that is merely this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, the distortion of making should be regarded as belonging to the utility model protection domain.

Claims

1. wireless liquid level emasuring device; It is characterized in that: comprise slave computer, status of a sovereign machine and host computer VB system, said slave computer comprises the next single-chip microcomputer, and the next single-chip microcomputer is connected with liquid level Acquisition Circuit, water pump control circuit and wireless module; Said liquid level Acquisition Circuit is a ultrasonic distance measuring module; Said status of a sovereign machine comprises status of a sovereign single-chip microcomputer, and status of a sovereign single-chip microcomputer is connected with wireless module, warning circuit, key circuit and LCDs; Ultrasonic distance measuring module is installed in container top, with liquid level over against.

2. a kind of wireless liquid level emasuring device according to claim 1, it is characterized in that: said ultrasonic distance measuring module comprises circuit board, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver.