WO2021038593A1 - Système et procédé de détermination automatique et de rendu numérique de densité de liquide - Google Patents

Système et procédé de détermination automatique et de rendu numérique de densité de liquide Download PDF

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Publication number
WO2021038593A1
WO2021038593A1 PCT/IN2020/050747 IN2020050747W WO2021038593A1 WO 2021038593 A1 WO2021038593 A1 WO 2021038593A1 IN 2020050747 W IN2020050747 W IN 2020050747W WO 2021038593 A1 WO2021038593 A1 WO 2021038593A1
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WIPO (PCT)
Prior art keywords
density
liquid
sensor
closed container
server
Prior art date
Application number
PCT/IN2020/050747
Other languages
English (en)
Inventor
Prathik Pai PANEMANGALORE
Original Assignee
Logichive Solutions Private Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Logichive Solutions Private Limited filed Critical Logichive Solutions Private Limited
Publication of WO2021038593A1 publication Critical patent/WO2021038593A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
    • G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
    • G01N9/14—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being built into a container
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
    • G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
    • G01N9/18—Special adaptations for indicating, recording, or control

Definitions

  • the present invention generally relates to technique of density determination, and more particularly relates to a system and method employing sensors for automatically determining and digitally rendering density of liquid.
  • density of liquids was determined manually utilizing conventional density determination meters like hydrometers, lactometers, alcoholometers etc.
  • the manual determination of density of liquids is done based on Archimedes principle by floating vertically the density determination meters in the respective liquids hold in the container and manually noting down the submerged level of the density determination meters in the respective liquids through scales provided in the stems of the density determination meters.
  • the manual determination of density of the liquids leads to inadvertent errors. Further in the manual determination it is mandatory to ensure that the density determination needs to float vertically for achieving exact measurements.
  • the conventional density determination meters require expertise in every step of the manual operation protocols, which often affects the accuracy and reliability of the results. Most often, different operators will obtain different results for the same sample.
  • the digital density meters were invented and employed to determine the density of the liquids.
  • the digital density meters employ Piezo elements in the oscillating U tube to excite the U-tube whereby optical pickups determine the period of oscillation. This period t can be measured with high resolution and stands in simple relation to the density p of the sample in the oscillator.
  • the conventional digital density meters evolved were not completely automated. Also, the conventional digital density meters do not employ sensors for accurate measurements. Further the conventional digital density meters do not communicate with servers to keep track off the records of density measurements at various temperatures.
  • the system includes a density determination apparatus and a server.
  • the density determination apparatus includes a closed container, a density determination meter, a first sensor, a second sensor and a controller unit.
  • the closed container holds the liquid for which the density to be determined.
  • the density determination meter floats in the liquid vertically inside the closed container.
  • the density determination meter includes a flat surface at stem end.
  • the first sensor attached at top of the closed container is adapted to measure altitude of submerged level of the density determination meter in the liquid.
  • the second sensor attached to a second side of the closed container is adapted to measure temperature of the liquid within the closed container.
  • the closed container includes a business logic and a communication unit.
  • the business logic is adapted to determine the density of the liquid using a logical equation based on the measured temperature and the submerged level of the density determination meter.
  • the communication unit is adapted to communicate the determined density to at least one of a server and one or more computing devices having displays in order to digitally render the density of the liquid.
  • the server is wirelessly connected with one or more density determination apparatus. The server stores and keeps track of the measurements and calibrate each of the density determination apparatus connected with the server.
  • the system comprises a tank attached at bottom of the closed container to collect the liquid overflowing through the overflow pipe and the liquid draining through a solenoid valve.
  • the closed container includes an entry funnel, an overflow pipe and a solenoid valve.
  • the entry funnel attached to the closed container on a first side is adapted to fill the closed container with the liquid.
  • the overflow pipe attached to the closed container on the second side is adapted to drain the overflowing liquid.
  • the solenoid valve attached to bottom of the closed container is adapted to drain the entire liquid.
  • the server stores prestored density values of the liquid at observed temperatures.
  • the controller unit determines the density of the liquid from the prestored density values at the observed temperatures using the logical equation.
  • the system includes one or more supporting guidances that are adapted to hold the floating density determination meter vertically in line with the first sensor for accurate measurements.
  • the first sensor is selected from a group comprising at least one of a distance sensor and a light detection and ranging (LIDAR) sensor.
  • the second sensor is a temperature sensor.
  • the density values of the liquid are automatically updated and stored in the server upon communication by the density determination apparatus.
  • the density determination meter includes one of but not limited to a hydrometer, a lactometer, an alcoholmeter, a saccharometer, a salinometer and an urinometer.
  • a hydrometer a lactometer
  • an alcoholmeter a saccharometer
  • a salinometer a salinometer
  • urinometer a urinometer
  • the method includes holding, by a closed container, the liquid for which the density is to be determined and rendered digitally; supporting, by one or more supporting guidances, a density determination meter to float vertically in the liquid inside the closed container in line with the first sensor; measuring, by a first sensor, altitude of submerged level of the density determination meter in the liquid; measuring, by a second sensor, temperature of the liquid within the closed container; receiving, by a controller unit, measurements integrated from the first sensor and the second sensor; determining, by a business logic of the controller unit, the density of the liquid using a logical equation based on the measured temperature and the submerged level of the density determination meter; and communicating, by a communication unit of the controller unit, the determined density to a server and one or more computing devices having displays in order to digitally render the density of the liquid.
  • Figure 1 illustrates a system view for automatically determining and digitally rendering density of a liquid, according to an embodiment of the present invention.
  • Figure 2 illustrates the density determination meter employed for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • Figure 3 illustrates a block diagram of the system for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • Figure 4 is a flow diagram illustrating a method for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • Figure 5 is a flow chart illustrating a method for calibrating the density determination apparatus and automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • the present invention works based on Archimedes principle and assisted by sensors for automated determination of density.
  • Density determination meters like hydrometers, lactometers, etc. are made to float on a respective liquid for which the density is to be measured. Due to the upward buoyant force, the density determination meters submerge fully or partially in the liquid. Based on the submerged level of the density determination meters in the liquid and with the employment of sensors, the present invention automatically determines the density of the liquid by using logical equations. Further with the assistance of the server the exact density of the liquid is determined and rendered digitally.
  • One or more density determination apparatus comprising the density determination meter for determining density of various liquids are wirelessly connected to the server.
  • Each density determination apparatus connected to the server has a unique density meter ID, closed container ID (i.e.
  • Each density determination apparatus having specific values is calibrated initially and synced with the server for determination of the density of the liquid.
  • Each density determination apparatus connected to the server may be adapted to determine density of different liquids.
  • Each density determination apparatus holds/maintains the same amount of liquid.
  • the server in center stores the measurement records of each density determination apparatus.
  • the server also stores density meter ID, offset value of density meter, density meter sink level of each density determination apparatus that are used for determining the density of corresponding liquid.
  • FIG. 1 illustrates a system view for automatically determining and digitally rendering density of a liquid, according to an embodiment of the present invention.
  • the system includes a density determination apparatus and a server.
  • the density determination apparatus includes a closed container 102, a density determination meter 104, a first sensor 106 and a second sensor 108.
  • the closed container 102 holds a liquid for which the density is to be determined.
  • the closed container 102 includes a removable cap 120.
  • the removable cap 120 is utilized in time of at least one of maintenance and service.
  • the closed container 102 includes an entry funnel 112, an overflow pipe 110 and a solenoid valve 116.
  • the entry funnel 112 is attached to the closed container 102 on a first side.
  • the entry funnel 112 is adapted to fill the closed container 102 with the liquid.
  • the overflow pipe 110 is attached to the closed container 102 on a second side.
  • the overflow pipe 110 is adapted to drain the liquid overflowing to a bottom tank.
  • the solenoid valve 116 is attached to bottom of the closed container 102.
  • the solenoid valve 116 is adapted to drain the entire liquid at the time of service or maintenance.
  • the system also includes a bottom tank 122 at the bottom of the closed container 102 in order to collect the liquid that is draining or overflowing from the closed container 102.
  • the density determination meter 104 floats in the liquid vertically inside the closed container 102.
  • the density determination meter 104 may be at least one of but not limited to a Hydrometer, a Lactometer, an Alcoholometer, an Urinometer, a Salinometer and a Saccharometer.
  • the density determination meter 104 includes a flat surface 118 at end of its stem.
  • the density determination meter 104 includes one or more supporting guidances 114.
  • the one or more supporting guidances 114 is adapted to hold the floating density determination meter 104 vertically in line with the first sensor 106 for accurate measurements.
  • the first sensor 106 measures submerged level of the density determination meter 104 in the liquid when the density determination meter 104 floats stably in the liquid.
  • the second sensor 108 measures temperature of the liquid within the closed container 102.
  • the first sensor 106 is at least one of a distance sensor and a light detection and ranging (LIDAR) sensor and the second sensor 108 is a temperature sensor.
  • the first sensor 106 and the second sensor 108 measures the submerged level of the density determination meter 104 and the temperature respectively at the same point of time for accurate density determination.
  • the system also includes a server.
  • the density determination apparatus is calibrated initially by connecting it with the server.
  • the measurements of the first sensor 106 and the second sensor 108 are communicated to the server via a network.
  • the network may be at least one of wired network or a wireless network.
  • the server receives the measurements from the first sensor 106 and the second sensor 108.
  • the server includes a database.
  • the database stores prestored density measurements for various liquids done at various temperatures (say observed temperatures) at various instances.
  • the prestored measurements i.e. the measurements at the observed temperature
  • the server Upon receiving the current measurements from the first sensor 106 and the second sensor 108, the server compares the current measurements with the prestored measurements.
  • the server includes a controller unit that estimates density of the liquid from the density calculated at observed temperature t by using a logical equation. To calculate the density an initial calibration is to be performed first.
  • the server further communicates the determined density of the liquid to one or more computing devices and the density determination apparatus that are remotely connected to the server via the wireless network.
  • the one or more computing devices and the density determination apparatus includes display that renders the determined density of the liquid.
  • FIG. 2 illustrates the density determination meter 104 employed for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • the density determination meter 104 includes the flat surface 118 at end of its stem.
  • the density determination meter 104 is a conventional density meter (like Hydrometers, Urinometers, etc.) that includes a cap having the flat surface 118.
  • the stem is calibrated with scale as similar as the conventional density meters like Hydrometers.
  • the scale readings are digitalized (i.e. displaying the density of the liquid digitally) using logical equations as described above in Figure 1.
  • FIG 3 illustrates a block diagram of the system for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • the system includes a density determination apparatus and a server.
  • the density determination apparatus includes a controller unit 304, a first sensor 106, a second sensor 108, a solenoid valve 116, a display unit 202 and a power supply and charging unit.
  • the controller unit includes a business logic and a communication unit.
  • the communication unit is configured to communicate with the first sensor 106 and the second sensor 108.
  • the business logic within the controller unit 304 performs the calculations using the logical equations as described above in Figure 1 in order to determine the density of the liquid.
  • the solenoid valve 116 is also coupled to the controller unit 304 for automating the solenoid valve 116 in order to drain the entire liquid.
  • the determined density of the liquid is communicated to the server and the server stores the density values at respective temperatures for future records and analysis purposes.
  • the controller unit 304 controls rest of all the electronic components.
  • Figure 4 is a flow diagram illustrating a method for automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • the liquid is filled and hold inside the closed container 102.
  • the density determination meter 104 is made to float vertically in line with the first sensor 106 with the assistance of the one or more supporting guidances 114.
  • the first sensor 106 attached at the top of the closed container 102 measures the submerged level of the density determination meter 104 and estimates the distance between the first sensor 106 and the stem head of the density determination meter 104.
  • the second sensor 108 within the closed container 102 measures the temperature of the liquid within the closed container 102.
  • the controller unit 304 receives the measurements from the first sensor 106 and the second sensor 108.
  • the business logic of the controller unit determines the density at the measured temperature utilizing the logical equation as described in Figure 1.
  • the determined density is communicated to the server and the one or more computing units having displays in order to render the density of the liquid digitally.
  • each density determination apparatus connected with the server are calibrated initially.
  • the business logic within the controller unit 304 is placed in the server and only the determined density is communicated to the one or more intended computing devices and the density determination apparatuses having displays for rendering digitally the density of the liquid.
  • Figure 5 is a flow chart illustrating a method for calibrating the density determination apparatus and automatically determining and rendering digitally density of the liquid, according to an embodiment of the present invention.
  • the density determination apparatus accepts input i.e. the liquid for which the density is to be determined.
  • the controller unit 304 checks whether the drain button is on or not i.e. whether the solenoid valve is draining the liquid or not.
  • the controller unit 304 triggers the solenoid valve 116 to drain the liquid for N seconds when the drain button is ON.
  • the controller unit 304 checks whether the scan button is on or not when the drain button is off (i.e. solenoid valve is closed).
  • the scanning is displayed on the displays of the device connected at step 512.
  • the N readings of temperature and distance sensors are taken.
  • the distortion of readings is calculated.
  • the calculated distortion is accepted.
  • retrieving specific values of the closed container 102 and the container ID from the local storage and map.
  • the density at the observed temperature is determined and the density of the liquid at the measured temperature is determined using a logical equation as described in Figure 1.
  • the outcome is accepted and displayed.
  • the determined result is communicated to intended computing devices having displays for digitally render the density of the liquid.
  • the entire liquid is drained by triggering ON the solenoid valve by the controller unit 304.
  • the controller unit 304 checks whether the calibrate button is ON or OFF. When the calibrate button is OFF, the configuration is done through WIFI hotspot at step 550.
  • the apparatus ID and the density meter ID are entered via input devices to initiate calibration.
  • the liquid for which the density to be determined is filled inside the closed container 102.
  • the scan button is checked whether it is ON or OFF. If It is OFF the density apparatus is filled again. If it is ON the parameters are measured at step 540.
  • the reference density is entered.
  • the scale chart is retrieved in response to the entered reference density.
  • the scale Upon successfully retrieval, the scale is adjusted as per the requirement at step 546.
  • the calibration is success and proceeded to auto drain at step 528 and is ready for determining the density of the liquid.
  • the density determination apparatus with the assistance of the first sensor 106, the second sensor 108 and the server automatically determines the density of the liquid and digitally renders the density.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne un procédé de détermination automatique et de rendu numérique d'une densité de liquide comprenant les étapes suivantes : un récipient fermé (102) maintient le liquide dont la densité est à déterminer ; des dispositifs de guidage de maintien (114) maintiennent un dispositif de mesure de densité (104) en flottaison verticale dans le liquide en ligne avec un premier capteur (106) ; le premier capteur (106) mesure l'altitude du niveau immergé du dispositif de mesure de densité (104) dans le liquide ; un second capteur (108) mesure la température du liquide à l'intérieur du récipient fermé (102) ; une unité de commande (304) reçoit des mesures en provenance du premier capteur (106) et du second capteur (108) ; une logique métier détermine la densité du liquide à l'aide d'une équation logique en fonction des mesures ; et une unité de communication de l'unité de commande (304) communique la densité déterminée à un serveur et à des dispositifs de calcul dotés de dispositifs d'affichage afin de réaliser un rendu numérique de la densité du liquide.
PCT/IN2020/050747 2019-08-27 2020-08-26 Système et procédé de détermination automatique et de rendu numérique de densité de liquide WO2021038593A1 (fr)

Applications Claiming Priority (2)

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IN201941034541 2019-08-27
IN201941034541 2019-08-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390754A (zh) * 2021-06-11 2021-09-14 山东非金属材料研究所 一种玻璃浮计自动检定/校准装置及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387295A (zh) * 2018-03-26 2018-08-10 中国电子科技集团公司第三十八研究所 一种油脂液位温度密度综合快速检测设备
US20180356273A1 (en) * 2015-11-30 2018-12-13 Bourns, Inc. Detecting Fluid Level Via a Float

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180356273A1 (en) * 2015-11-30 2018-12-13 Bourns, Inc. Detecting Fluid Level Via a Float
CN108387295A (zh) * 2018-03-26 2018-08-10 中国电子科技集团公司第三十八研究所 一种油脂液位温度密度综合快速检测设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390754A (zh) * 2021-06-11 2021-09-14 山东非金属材料研究所 一种玻璃浮计自动检定/校准装置及方法

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