CN203870479U

CN203870479U - Unattended intelligent liquid level monitoring device

Info

Publication number: CN203870479U
Application number: CN201420204573.1U
Authority: CN
Inventors: 金明德
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-25
Filing date: 2014-04-25
Publication date: 2014-10-08
Anticipated expiration: 2024-04-25

Abstract

The utility model discloses an unattended intelligent liquid level monitoring device which is composed of the components of: a liquid level detecting module, a threshold value setting module, a wireless transmitting module, a voice alarming module, a liquid level displaying module, a GPS module, a liquid level controlling module, an upper single-chip microcomputer module, a lower single-chip microcomputer module, etc. The liquid level detecting module in the intelligent liquid level monitoring device is used for monitoring liquid level change in a storage tank. The lower single-chip microcomputer module transmits liquid level information to the upper single-chip microcomputer module through the wireless transmitting module. The upper single-chip microcomputer module controls a display in a monitoring room for displaying real-time liquid level height. When liquid level change information exceeds a preset upper limit value or a preset lower limit value, the lower single-chip microcomputer module activates the liquid level controlling module, thereby starting a liquid discharging pump or a liquid inlet pump. The upper single-chip microcomputer controls the voice alarming module for alarming and transmits information which indicates a fact that liquid level change exceeds the limit value to a mobile phone of a person on duty, thereby facilitating in-time finding of possibly occurred fault by the person on duty. The unattended intelligent liquid level monitoring device provided by the utility model is controlled by the single-chip microcomputers and has advantages of: simple structure, easy mounting, easy operation, convenient popularization, etc.

Description

A kind of unattended intelligent liquid level monitoring device

Technical field

The utility model relates to a kind of unattended intelligent liquid level monitoring device.Especially be suitable for applying in the storage device at night of petroleum and petrochemical industry system and other factories, this device can be according to liquid level situation of change in real-time demonstration storage device at night; And can control according to the threshold value of prior setting the duty of liquid feeding pump and positive displacement pump, thereby ensure that the liquid level in storage tank changes in a constant scope; In the time exceeding threshold value, system can automatic speech alarming and is sent warning message to operator on duty's mobile phone, contributes to the fault of finding that in time liquid storage system may exist.

Background technology

Along with industrial expansion, the capacity of various device for storing liquid improves constantly, and controls in storage tank liquid level and remains in constant scope just strictlyer, and in storage tank, the variation of liquid level may directly affect the safety of people self and equipment.At present, general liquid level control manual adjustments or automatically regulate but automaticity is low, degree of regulation is poor and display alarm in real time with etc. shortcoming.The advantages such as utilizing single-chip microcomputer and peripheral chip thereof to realize tank level control system has become possibility, and becomes a kind of trend of development, and this system not only volume is little, easy for installation, and function is more complete, and have very high cost performance, therefore application prospect is wide.

Summary of the invention

The problems referred to above that exist in order to solve background technology, the utility model patent proposes a kind of unattended intelligent liquid level monitoring device, in this intelligent liquid level supervising device, liquid level detection module is used for monitoring the height change of liquid level in storage tank, and give singlechip microcontroller module by the information of variation, slave computer one-chip computer module is passed to host computer single-chip microcomputer by NRF905 module by liquid level information, and host computer Single-chip Controlling display shows liquid level in real time; In the time that liquid level change information exceedes the higher limit of systemic presupposition, host computer Single-chip Controlling audio alert module is reported the prompt messages of recording in advance, slave computer Single-chip Controlling liquid level control module work simultaneously, start positive displacement pump and start working, and liquid level is changed and on the mobile phone that the information transfiniting is dealt into operator on duty, points out the reason of searching rapidly tank level variation.In the time that liquid level change information exceedes the lower limit of systemic presupposition, host computer Single-chip Controlling audio alert module is reported the prompt messages of recording in advance, slave computer Single-chip Controlling liquid level control module work simultaneously, start liquid feeding pump and start working, and liquid level is changed and on the mobile phone that the information transfiniting is dealt into operator on duty, points out the reason of searching rapidly liquid level variation; Thereby the fault that contributes to the timely discovery of operator on duty to exist.

The utility model patent is achieved by the following technical programs:

A kind of unattended intelligent liquid level monitoring device, is characterized in that, comprises lower computer system and master system; The single-chip microcomputer microcontroller of described master system and lower computer system all adopts 89S51 single-chip microcomputer; Information transmission between described master system and lower computer system is to pass through wireless transport module; Described lower computer system also comprises liquid level detection module, threshold value setting module, wireless transport module and liquid level control module, and described liquid level detection module, threshold value setting module, wireless transport module and liquid level control module are connected with slave computer single-chip microcomputer; Described master system also comprises wireless transport module, audio alert module, liquid level display module and GPRS module, and described wireless transport module, audio alert module, liquid level display module and GPRS module are all connected with host computer single-chip microcomputer.

Owing to adopting above technical scheme, a kind of unattended intelligent liquid level monitoring device of the present utility model, can show in real time the liquid level true altitude information in storage tank, thereby according to the situation of change of liquid level open relevant pump reach control liquid level in constant scope, change, and in time the information of transfiniting is sent on operator on duty's mobile phone, thereby contribute to operator on duty to search in time the reason of tank level variation and the fault that discovery system may exist.

Brief description of the drawings

Fig. 1 is a kind of unattended intelligent liquid level monitoring device of the utility model structured flowchart;

Fig. 2 is the utility model slave computer liquid level detection module circuit diagram;

Fig. 3 is the utility model slave computer threshold value setting system circuit diagram;

Fig. 4 is the utility model slave computer wireless transport module circuit diagram;

Fig. 5 is the utility model slave computer liquid level control module circuit diagram;

Fig. 6 is the utility model host computer wireless transport module circuit diagram;

Fig. 7 is the utility model host computer LCD MODULE circuit diagram;

Fig. 8 is the utility model host computer audio alert module circuit diagram;

Fig. 9 is the utility model host computer GPRS module circuit diagram.

embodiment

Below in conjunction with embodiment, further set forth the utility model patent:

Shown in figure 1, a kind of unattended intelligent liquid level monitoring device structured flowchart of the present utility model, comprises lower computer system and master system; The single-chip microcomputer microcontroller of described master system and lower computer system all adopts 89S51 single-chip microcomputer; Information transmission between described master system and lower computer system is to pass through wireless transport module; Described lower computer system also comprises liquid level detection module, threshold value setting module, wireless transport module and liquid level control module, and described liquid level detection module, threshold value setting module, wireless transport module and liquid level control module are connected with slave computer single-chip microcomputer; Described master system also comprises wireless transport module, audio alert module, liquid level display module and GPRS module, and described wireless transport module, audio alert module, liquid level display module and GPRS module are all connected with host computer single-chip microcomputer.

With reference to figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8 and Fig. 9, the 89S51 single-chip microcomputer that upper and lower computer single-chip microcomputer U1 and U8 use, what liquid level detection module U2 used is HC-SR04 ultrasonic measurement module, what threshold value setting module U3 used is key-press module, what wireless transport module U4 and U7 used is NRF905 module, what liquid level control module U5 and U6 used is that two relays are controlled two pumps, what liquid level display module U10 used is 12864 liquid crystal display, what audio alert module U9 used is ISD1820 voice module and GPRS module U11 is by serial ports and single chip communication.

This device utilizes liquid level detection module U2 to detect the height change of liquid level in storage tank, and by slave computer single-chip microcomputer U1, real-time level information exchange being crossed to wireless transport module U4 and U7 gives host computer one-chip computer module, host computer single-chip microcomputer U8 controls display module U10 and shows in real time liquid level; In the time that liquid level change information exceedes the higher limit of systemic presupposition, host computer single-chip microcomputer U8 controls audio alert module U9 and reports the prompt messages recorded in advance and liquid level is changed to the information exchange transfiniting and cross on the mobile phone that GPRS module U11 is dealt into operator on duty and point out the reason of searching rapidly tank level rising, slave computer single-chip microcomputer U1 controls liquid level control module U5 work simultaneously, starts positive displacement pump and starts working; In the time that liquid level change information exceedes the lower limit of systemic presupposition, host computer single-chip microcomputer U8 controls audio alert module U9 and reports the prompt messages recorded in advance and liquid level is changed to the information exchange transfiniting and cross on the mobile phone that GPRS module U11 is dealt into operator on duty and point out the reason of searching rapidly liquid level decline, slave computer Single-chip Controlling liquid level control module work simultaneously, start liquid feeding pump and start working, keep liquid level in constant scope.

But above-mentioned embodiment is exemplary, be to be the restriction that this patent is comprised to scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; As long as any being equal to done according to spirit that this patent discloses changes or modify, all fall into the scope that this patent comprises.

Claims

1. a unattended intelligent liquid level monitoring device, is characterized in that, comprises lower computer system and master system; The single-chip microcomputer microcontroller of described master system and lower computer system all adopts 89S51 single-chip microcomputer; Information transmission between described master system and lower computer system is to pass through wireless transport module; Described lower computer system also comprises liquid level detection module, threshold value setting module, wireless transport module and liquid level control module, and described liquid level detection module, threshold value setting module, wireless transport module and liquid level control module are connected with slave computer single-chip microcomputer; Described master system also comprises wireless transport module, audio alert module, liquid level display module and GPRS module, and described wireless transport module, audio alert module, liquid level display module and GPRS module are all connected with host computer single-chip microcomputer.

2. a kind of unattended intelligent liquid level monitoring device as claimed in claim 1, it is characterized in that: what this system liquid level detection module was used is HC-SR04 ultrasonic distance measuring module, this module has contactless distance sensing function, can accurately measure the variation of liquid level within the scope of 2cm-400cm.