CN203732133U

CN203732133U - GSM (Global System for Mobile) alarm based ultrasonic liquid level measurement system

Info

Publication number: CN203732133U
Application number: CN201420064751.5U
Authority: CN
Inventors: 卢超
Original assignee: 陕西理工学院
Priority date: 2014-02-13
Filing date: 2014-02-13
Publication date: 2014-07-23

Abstract

The utility model discloses a GSM (Global System for Mobile) alarm based ultrasonic liquid level measurement system. The GSM alarm based ultrasonic liquid level measurement system comprises a signal detecting module and a signal processing module. The signal detecting comprises a first microcontroller, an ultrasonic probe, a power amplitude amplifying circuit, a pulse generation circuit, an amplifying circuit, a filter circuit, an A/D (Analog to Digital) converter, a temperature measuring module and a wireless transmitting module; the signal processing module comprises a second microcontroller, a wireless receiving module, a USB (Universal Serial Bus) interface, a key module, a display module, an alarm module, a storage module and an GSM module. The GSM alarm based ultrasonic liquid level measurement system has the advantages of being novel in design, convenient to operate and good in convenience, measuring the liquid level in real time, enabling the wireless transmitting module and the wireless receiving module to be in wireless communication, being good in mobility, being wide in coverage and having no distance limit due to the GSM network and having application and promotion values.

Description

The ultrasonic liquid level measuring system of reporting to the police based on GSM

Technical field

The utility model relates to liquid level measuring system, is a kind of ultrasonic liquid level measuring system of reporting to the police based on GSM specifically.

Background technology

Level gauging is widely used in industrial processes, measuring method has had multiple, for example hand gauging, glass tube, float-type, capacitance method, ultrasound wave, radar, optical fiber etc., wherein ultrasonic liquid level measuring is a kind of non-contact type measuring method by microprocessor control, because hyperacoustic speed is much smaller compared with the light velocity, travel-time ratio is easier to detect, and be easy to directional transmissions, good directionality, intensity is controlled well, solve pressure unit, condenser type, the winding that the metering systems such as float-type bring, reveal, contact medium, safeguard the troubles such as expensive, there are obvious advantage and vast potential for future development, can be widely used in the measurement of various liquid and solid material height.

Design is a kind of easy to use and measure ultrasonic liquid level measuring system accurately, to collect liquid level information and import computer into, utilize PC that it is monitored in real time, analyzed and processes, show liquid level curve, in the time that liquid level is abnormal, send warning message by means of GSM network, this monitoring device convenient management, easy and simple to handle, reliable simultaneously, very significant, be also current testing tool at a high speed, an important directions of convenient, web development.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of ultrasonic liquid level measuring system of reporting to the police based on GSM is provided, can carries out real-time automatic monitoring to liquid level situation of change, and SMS alarm is provided.

To achieve these goals, the technical solution adopted in the utility model is: the ultrasonic liquid level measuring system of reporting to the police based on GSM, comprise signal detection module and signal processing module, and signal detection module comprises the first microcontroller, ultrasonic probe, power magnitude amplifying circuit, pulse-generating circuit, amplifying circuit, filtering circuit, A/D converter, temperature-measuring module and wireless transmitter module, temperature-measuring module is all connected with the first microcontroller with wireless transmitter module, the first microprocessor controls pulse-generating circuit produces after signal, be connected with ultrasonic probe through power magnitude amplifying circuit, ultrasonic probe sends echoed signal through amplifying circuit, filtering circuit, after A/D converter, be connected with the first microcontroller, signal processing module comprises the second microcontroller, wireless receiving module, USB interface, key-press module, display module, alarm module, memory module and gsm module, wireless receiving module, key-press module, display module, alarm module, memory module is all connected with the second microcontroller with gsm module, and the second microcontroller is connected with PC by USB interface.

As preferably, ultrasonic probe is piezoelectric ceramics integral type ultrasonic sensor.

As preferably, temperature-measuring module is digital temperature sensor.

As preferably, alarm module is phonetic alarm.

As preferably, wireless transmitter module and wireless receiving module match and between wireless telecommunications.

Compared with prior art, the utility model has the advantage of: modern design, easy and simple to handle, good portability, can measure liquid level in real time, wireless telecommunications between wireless transmitter module and wireless receiving module, movability is good, utilizes GSM network, broad covered area simultaneously, almost there is no the restriction of distance, there is application and popularization value.

Brief description of the drawings

Fig. 1 is signal processing module structural representation of the present utility model;

Fig. 2 is signal detection module structural representation of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.The present embodiment is only the description to the utility model embodiment, scope of the present utility model is not had to any restriction.

The utility model comprises signal detection module and signal processing module, and signal detection module comprises the first microcontroller, ultrasonic probe, power magnitude amplifying circuit, pulse-generating circuit, amplifying circuit, filtering circuit, A/D converter, temperature-measuring module and wireless transmitter module, temperature-measuring module is all connected with the first microcontroller with wireless transmitter module, the first microprocessor controls pulse-generating circuit produces after signal, be connected with ultrasonic probe through power magnitude amplifying circuit, ultrasonic probe sends echoed signal through amplifying circuit, filtering circuit, after A/D converter, be connected with the first microcontroller, signal processing module comprises the second microcontroller, wireless receiving module, USB interface, key-press module, display module, alarm module, memory module and gsm module, wireless receiving module, key-press module, display module, alarm module, memory module is all connected with the second microcontroller with gsm module, and the second microcontroller is connected with PC by USB interface.As preferably, ultrasonic probe is piezoelectric ceramics integral type ultrasonic sensor.Temperature-measuring module is digital temperature sensor.Alarm module is phonetic alarm.Wireless transmitter module and wireless receiving module match and between wireless telecommunications.

Preferably, described microcontroller is selected AT89C52 single-chip microcomputer or STC89C52 single-chip microcomputer, described ultrasonic probe is water proof type piezoelectric ceramics integral type ultrasonic sensor TCF40-18TR1, described A/D converter is selected ADS930 modulus conversion chip, described temperature-measuring module is selected digital temperature sensor DS18B20, described gsm module adopts TC35i module, described alarm module is selected ISD1420 speech chip, described memory module adopts AT24C04 chip, described USB interface is selected CH375 chip, described wireless transmitter module and wireless receiving module are selected NRF2401 chip, described display module is selected LCD1602 liquid crystal display.

While use first, ultrasonic probe is arranged on to liquid level top, just right with liquid level, after system initialization, the pulse signal that produces circuit generation by the first microcontroller driving pulse is after power magnitude is amplified, excitation ultrasonic probe produces the ultrasound wave of high frequency, ultrasound wave passes to liquid level through medium, part ultrasonic energy is reflected back toward ultrasonic probe, transmit and together in entering signal receiving system, amplify with echoed signal, after filtering is processed, convert digital signal to through A/D converter and send into the first microcontroller, the first microcontroller is processed, calculate, conversion, and consider temperature-measuring module measure temperature, carry out temperature compensation, then be sent to the second microcontroller storage data of signal processing module by wireless transmitter module, and measurement data is sent into display module show, simultaneously the liquid level of data and key-press module input, the highest liquid level, minimum liquid level calculates and compares, if not in scope, start audio alert, utilize GSM network to send SMS alarm to user simultaneously, if user wonders current water level situation simultaneously, can send by SMS the Query Information of agreement, then the liquid level data of measuring is replied by note, also can utilize USB interface to connect upper PC simultaneously, in PC, draw the real-time and historical squiggle of liquid level.

To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be limited to these embodiment shown in this article, but will accord with principle disclosed herein and features of novelty the widest consistent scope.

Claims

1. the ultrasonic liquid level measuring system of reporting to the police based on GSM, comprises signal detection module and signal processing module, and described signal detection module comprises the first microcontroller, ultrasonic probe, power magnitude amplifying circuit, pulse-generating circuit, amplifying circuit, filtering circuit, A/D converter, temperature-measuring module and wireless transmitter module, described temperature-measuring module is all connected with the first microcontroller with wireless transmitter module, described the first microprocessor controls pulse-generating circuit produces after signal, be connected with ultrasonic probe through power magnitude amplifying circuit, described ultrasonic probe sends echoed signal through amplifying circuit, filtering circuit, after A/D converter, be connected with the first microcontroller, described signal processing module comprises the second microcontroller, wireless receiving module, USB interface, key-press module, display module, alarm module, memory module and gsm module, described wireless receiving module, key-press module, display module, alarm module, memory module is all connected with the second microcontroller with gsm module, and the second microcontroller is connected with PC by USB interface.

2. ultrasonic liquid level measuring system of reporting to the police based on GSM according to claim 1, is characterized in that: described ultrasonic probe is piezoelectric ceramics integral type ultrasonic sensor.

3. ultrasonic liquid level measuring system of reporting to the police based on GSM according to claim 1, is characterized in that: described temperature-measuring module is digital temperature sensor.

4. ultrasonic liquid level measuring system of reporting to the police based on GSM according to claim 1, is characterized in that: described alarm module is phonetic alarm.

According to claim 1 based on GSM report to the police ultrasonic liquid level measuring system, it is characterized in that: described wireless transmitter module and wireless receiving module match and between wireless telecommunications.