CN204731570U

CN204731570U - A kind of container tank inner fluid available quantity on line real-time monitoring device

Info

Publication number: CN204731570U
Application number: CN201520232191.4U
Authority: CN
Inventors: 张升光
Original assignee: GUANGZHOU JEZID INFORMATION TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU JEZID INFORMATION TECHNOLOGY Co Ltd
Priority date: 2015-04-16
Filing date: 2015-04-16
Publication date: 2015-10-28
Anticipated expiration: 2025-04-16

Abstract

The utility model discloses a kind of container tank inner fluid available quantity on line real-time monitoring device, comprise with lower module: LOAD CELLS array module, data acquisition module, display module, data transmission and storage monitoring module; LOAD CELLS array module comprises multiple LOAD CELLS array be connected in parallel, for detecting example weight; Data acquisition module comprises high-precision A/D conversion chip, calibration operation button, bottle cap identification switch and AVR single chip, for Collect conversion weight data; Display module, for showing current weight, the information such as available quantity number percent; Data transmitting module comprises Wireless transceiver module and network interface link block, for weight information is delivered to Cloud Server; Store supervisory system and adopt Cloud Server, obtain for real-time alert and fluid service condition; Compared with prior art, this device have easy and simple to handle, measuring accuracy is high, good stability, dirigibility are strong, applied widely and can the advantage such as on line real-time monitoring.

Description

A kind of container tank inner fluid available quantity on line real-time monitoring device

Technical field

The utility model relates to a kind of on line real-time monitoring device, is specifically related to a kind of container tank inner fluid available quantity on line real-time monitoring device.

Background technology

At present, for measuring the device of indefinite form fluid (liquid or gas) content in visual difference container on existing market, great majority are based on these 5 kinds of principles of ultrasound wave, infrared ray, laser instrument, pressure transducer or temperature sensor, but the application on the liquid or gas of some ultralow temperature or deep-etching of these devices there will be real system installs the deficiencies such as difficulty, measuring accuracy are low, poor stability.As the mensuration of the amount of liquid nitrogen that biology laboratory is commonly used, according to ultrasound wave monitoring liquid nitrogen available quantity, because the needs sheet that shakes produces ultrasound wave, liquid nitrogen can constantly seethe with excitement at normal temperatures, adds that meeting aqueous vapor can produce thin ice, causes the ultrasonic sensor sheet that shakes freeze and damage; According to infrared ray or laser instrument, can shut out the light and cause measuring error to increase because liquid-nitrogen boiling produces a large amount of water vapor, the phenomenon of measurement data instability; According to pressure transducer, pressure transducer necessarily directly or indirectly contacts with liquid nitrogen, the boiling point of liquid nitrogen is negative 196 degree, most of pressure transducer cannot normally work at this temperature, add that setting pressure sensor needs the bottom opening at capacity, the preservation of liquid nitrogen is generally in the stainless steel thermos of vacuum, cannot carry out secondary installing.

And biological specimen is in the experimental implementation processes such as liquid nitrogen dip, experimenter may frequently place biological specimen and subtract and put, overall weight is frequently changed, and to the liquid level of liquid nitrogen, there is particular/special requirement owing to testing, if can not control the liquid nitrogen content in container tank in time, experimental result will be had a strong impact on.

Utility model content

For the defect of prior art, the utility model adopts the method for gravimetry to carry out the available quantity of measurement gas or liquid, in conjunction with wi-fi and aether net-based communication technology, monitor data is directly sent to Cloud Server, to realize real-time alert and to obtain gas or liquid service condition, overcome the deficiency of existing monitoring technique.

The utility model object is achieved through the following technical solutions:

A kind of container tank inner fluid available quantity on line real-time monitoring device, comprising: LOAD CELLS array module, data acquisition module, display module, data transmitting module and storage monitoring module; Described LOAD CELLS array module comprises multiple LOAD CELLS, for test fluid weight;

Described data acquisition module receives the signal of LOAD CELLS array module, is delivered to display module and shows, pass to storage monitoring module simultaneously by data transmitting module;

Described data acquisition module comprises HX 711 24 high-precision A/D conversion chip, calibration operation button, operation identification switch and single-chip microcomputer;

Described data acquisition module passes to single-chip microcomputer after receiving the signal of described LOAD CELLS array module, and described calibration operation button is connected with single-chip microcomputer respectively with operation identification switch, can send corresponding operating signal to single-chip microcomputer;

Described data transmitting module comprises Wireless transceiver module and network interface link block;

Described storage supervisory system adopts Cloud Server.

Further, described LOAD CELLS array module comprises multiple LOAD CELLS array in parallel and connects, and uses high precision potentiometer adjustment, for test fluid weight;

Described data acquisition module comprises HX 711 24 high-precision A/D conversion chip (hereinafter referred to as conversion chip), calibration operation button, bottle cap identification switch and AVR single chip, wherein, described conversion chip transfers digital signal to the resistance value of LOAD CELLS, re-uses two-wire system digital transmission and microcontroller communication; Described calibration operation button adopts two waterproof reset switches, calibrates for one for one to high position calibration to low level, for the real data of calibration current container tank inner fluid available quantity; Described bottle cap identification switch is used for inspection instrument lid and whether is in open mode; Described AVR single chip, preferably adopt 8 of atmel corp micro-process AVR core processors, ATMega 2560, speed is 16MHz, and with 86 input and output pins, EEPROM and the 8K RAM of built-in 256K;

Described display module adopts 16K look TFT display screen, and resolution is 202*128, for showing current weight, and the information such as available quantity number percent;

Described data transmitting module comprises Wireless transceiver module and network interface link block, and wherein Wireless transceiver module adopts ESP 8266 chip, and this chip supports IEEE 802.11 wireless standard, i.e. Wifi wireless connections, adopts IPv6 to connect; Network interface link block adopts W5500 chip, and this chip adopts automatic hardware TCP/IP communications protocol, greatly can alleviate the operation burden of primary processor;

Described storage supervisory system adopts Cloud Server (Elastic Compute Service, be called for short ECS), this server due to calculation services processing power can elastic telescopic, its way to manage is simpler than physical server efficient, can more stable, the safe application of rapid build, reduce the difficulty of exploitation O&M and overall IT cost simultaneously.

Compared with prior art, fluid available quantity real time monitoring apparatus provided by the utility model, has following beneficial effect:

1, degree of accuracy is high.By adopting the sensor array connecting mode of improvement for the poor container tank inner fluid of visuality, have modified the error of each drift angle, and then improve the degree of accuracy of monitoring.

2, applied widely.By using fluid density constant to be multiplied by liquid weight, calculating the volume of liquid, then calculating the liquid level of liquid according to the parameter of capacity, avoiding conventional apparatus cannot be used for liquid or the gas of ultralow temperature or deep-etching, improve dirigibility and the practicality of monitoring.

3, dirigibility is strong and have ageing and experience property.Adopt weighing principle, without the need to installing and putting weight change that sample produces by using bottle cap identification switch to identify to place or subtract and handle accordingly, make this device not only may be used for standing fluid weight to measure, also can measure for the fluid weight of example weight variation flexibly; In conjunction with Wi-fi or Ethernet On-line sampling system liquid level, to guarantee the ageing and experience property measured.

4, stable, safe and with low cost.Adopt processing power the Cloud Server of elastic telescopic can carry out calculation services, such that this plant running is more stable, safety, reduce the difficulty of developing operation and overall IT cost simultaneously.

Accompanying drawing explanation

Fig. 1 is signal wiring schematic diagram

Fig. 2 is sensor construction layout

Fig. 3 is sensor connecting circuit figure

Fig. 4 is software flow pattern

Fig. 5 is embodiment design sketch

Embodiment

For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is further described:

As shown in Figure 1, the utility model provides a kind of container tank inner fluid can use reason on line real-time monitoring device, and this device comprises LOAD CELLS array module, Data collecting conversion module, display module, data transmission and stores monitoring module.

Described LOAD CELLS comprises multiple LOAD CELLS array in parallel and connects, and uses high precision potentiometer adjustment, and for 4, its topology layout and connecting circuit are respectively as shown in Figures 2 and 3.

Described Data collecting conversion module comprises HX 711 24 high-precision A/D conversion chip (hereinafter referred to as conversion chip), calibration operation button, bottle cap identification switch and AVR single chip, wherein, described conversion chip transfers digital signal to the resistance value of LOAD CELLS, re-uses two-wire system digital transmission and microcontroller communication; Described calibration operation button adopts two waterproof reset switches, calibrates for one for one to high position calibration to low level, for the real data of calibration current container tank inner fluid available quantity; Described bottle cap identification switch is used for inspection instrument lid and whether is in open mode; Described AVR single chip, preferably adopt 8 of atmel corp micro-process AVR core processors, ATMega 2560, speed is 16MHz, and with 86 input and output pins, EEPROM and the 8K RAM of built-in 256K.

Described display module adopts 16K look TFT display screen, and resolution is 202*128, for showing current weight, and the information such as available quantity number percent.

Described data transmitting module comprises Wireless transceiver module and network interface link block, and wherein Wireless transceiver module adopts ESP 8266 chip, and this chip supports IEEE 802.11 wireless standard, i.e. Wifi wireless connections, adopts IPv6 to connect; Network interface link block adopts W5500 chip, and this chip adopts automatic hardware TCP/IP communications protocol, greatly can alleviate the operation burden of primary processor.

Concrete mensuration process is as follows:

First, by LOAD CELLS array detection fluid weight; The resistance value of LOAD CELLS is converted to digital signal by conversion chip, and uses two-wire system digital transmission and microcontroller communication, single-chip microcomputer again by signal transmission to display screen, can read weight-calibration data and initialization fluid density and container capacity from display screen; Then, whether opened by bottle cap identification switch identification bottle cap:

If container cover is not opened, then directly by using fluid density constant to be multiplied by liquid weight, calculate the volume of fluid, the liquid level of fluid is calculated again according to the parameter of capacity, the available quantity of display screen display current container inner fluid, if when finding that the numerical value of current display does not conform to the actual conditions, calibration knob is directly used to calibrate;

If container cover is opened, bottle cap inductive switch will pass to master control borad information automatically, and freeze current weight information numerical value, at this moment, put biological specimen weight change although add toward container or subtract, but do not affect the measurement of available quantity, system can automatically bottle cap open therebetween the weight that increases or reduce do corresponding increasing or subduction, fluid weight is multiplied by by using fluid density constant, calculate the volume of fluid, the liquid level of fluid is calculated again according to capacity parameter, the available quantity of display screen display current container inner fluid, to guarantee accuracy and the experience property of measurement,

Finally, in conjunction with wi-fi and aether net-based communication technology, monitor data is directly sent to Cloud Server, to realize real-time alert and the acquisition of fluid service condition.

Be below exemplary embodiment of the present utility model:

As shown in Figure 5, container content has appropriate liquid nitrogen, and when adding biological specimen in container, open container cover, bottle cap inductive switch will pass to master control borad information automatically, and current weight information numerical value freezes by master control borad; After directly putting into biological specimen, then container cover of closing, display screen is by the available quantity of liquid nitrogen in display current container; System can automatically bottle cap open therebetween the weight that increases or reduce do corresponding increasing or subduction, to guarantee the accuracy measured and experience property.If when finding that the numerical value of current display does not conform to the actual conditions, calibration knob is directly used to calibrate.

Compared with prior art, this apparatus structure is simple, and easy to use, measuring accuracy is high, and dirigibility is strong, and overcomes the defects such as prior art is difficult to realize ultralow temperature or strong corrosive fluid sample determination data are unstable, measuring error is large simultaneously.

More than that exemplary description has been carried out to the utility model; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that technical solutions of the utility model are carried out; or design of the present utility model and technical scheme directly applied to other occasion, all in protection domain of the present utility model without to improve.

Claims

1. a container tank inner fluid available quantity on line real-time monitoring device, is characterized in that, comprising: LOAD CELLS array module, data acquisition module, display module, data transmitting module and storage monitoring module; Described LOAD CELLS array module comprises multiple LOAD CELLS, for test fluid weight;

Described data acquisition module comprises HX 71124 high-precision A/D conversion chip, calibration operation button, operation identification switch and single-chip microcomputer;

Described storage supervisory system adopts Cloud Server.

2. a kind of container tank inner fluid available quantity on line real-time monitoring device according to claim 1, is characterized in that: adopt between LOAD CELLS array in described Weighing cell module and be connected in parallel, and use high precision potentiometer adjustment.

3. container tank inner fluid available quantity on line real-time monitoring device according to claim 1, it is characterized in that: in described data acquisition module, HX 71124 high-precision A/D conversion chip transfers digital signal to the resistance value of LOAD CELLS, re-uses two-wire system digital transmission and microcontroller communication.

4. container tank inner fluid available quantity on line real-time monitoring device according to claim 1, it is characterized in that: in wherein said data transmitting module, Wireless transceiver module adopts ESP 8266 chip, this chip supports IEEE 802.11 wireless standard, i.e. Wifi wireless connections, adopt IPv6 to connect; Network interface link block adopts W5500 chip, and this chip adopts automatic hardware TCP/IP communications protocol.