SYSTEM AND METHOD FOR HANDLING A BULK FLUID
20210176950 · 2021-06-17
Assignee
Inventors
Cpc classification
A01J5/007
HUMAN NECESSITIES
G06Q10/0832
PHYSICS
G01K13/02
PHYSICS
A23L3/001
HUMAN NECESSITIES
International classification
Abstract
A bulk fluid monitoring system and method for monitoring milk is provided, including a plurality of sensors for providing information in relation to properties of a bulk fluid, a memory for holding data parameters including information provided by the sensors and a predetermined time-and-temperature curve for a fluid, a processor for determining whether the information in relation to properties of the bulk fluid is within the bounds of the time and temperature curve for a fluid.
Claims
1. A bulk fluid monitoring system including: one or more sensors providing data in relation to plurality of properties of a bulk volume of a fluid; a memory for holding: a set of data parameters; the data provided by the sensors; and a predetermined time-and-temperature requirement for the fluid corresponding to the set of data parameters that comply by falling on or within ranges of values either side of a standard time and temperature curve for the fluid; a processor; and an output, wherein the processor: processes the sensor data to generate sensor information; compares the sensor information with the set of data parameters to generate a compliance value; and sends a signal to the output to generate an indicator of non-compliance where the compliance value corresponds to the fluid being outside the set of data parameters.
2. The bulk fluid monitoring system of claim 1, wherein the plurality of sensors include a sensor for measuring the temperature of the bulk fluid and a sensor for measuring a change in the volume of the bulk fluid.
3. The bulk fluid monitoring system of claim 1, wherein the system has storage for at least one set of standards for temperature and time parameters for the bulk fluid.
4. The bulk fluid monitoring system of claim 1, wherein the output provides information to one or more of: a data logging device; a communication network to transmit information to a remote location; an indicator.
5. The bulk fluid monitoring system of claim 4, wherein the indicator includes a visual or audible indication of whether the properties of the bulk fluid being monitored are within the standards for temperature parameters stored on the device.
6. A method of validating the properties of a bulk fluid in a storage container according to parameters set by a standard, the fluid being a particular type of fluid and collected from one or more local sources and transferred to the container, the method including the steps of: storing information regarding desired properties of the fluid or a broad curve delineating a range of acceptable values of one or more properties of the particular type of the fluid over time; receiving and monitoring the properties of a changing volume of the bulk fluid corresponding to the particular type of fluid in in a storage container; determining time-based properties of the changing volume of the fluid; comparing the time-based properties of the fluid to the stored information of the fluid; and generating an output indicating a result of the comparison being that the time-based properties fall within or outside the range delineated by the stored information.
7. The method of validating the properties of a bulk fluid of claim 6, wherein the properties of the fluid in the storage container include a temperature and a relative volume.
8. The method of validating the properties of a bulk fluid of claim 7, wherein determining time-based properties of the changing volume of the fluid includes using the information regarding the temperature and/or relative volume of the fluid in the storage container to determine one or both of the time fluid started to enter the storage container, and/or time the fluid stopped entering the storage container.
9. The method of validating the properties of a bulk fluid of claim 7, wherein the output of the result of the comparison includes information on the temperature and relative volume of the fluid over a time period at least from the time the fluid started or stopped entering the storage container.
10. The method of validating the properties of a bulk fluid of claim 7, wherein the output is a digital alert displayed or delivered at a remote location, or an audio or visual signal.
11. The bulk fluid monitoring system of claim 1, wherein the set of data parameters includes a time critical bulk fluid property vital for food safety and the processor stores the set of data parameters as a standard adapted to be graphically represented as a curve.
12. The bulk fluid monitoring system of claim 11, wherein the curve is a cooling curve that represents the maximum permissible temperature value of the bulk fluid at any one time over a specified period.
13. The bulk fluid monitoring system of claim 11, wherein the compliance value is represented in a fluid volume, viability and readiness indicator in the output device.
14. The bulk fluid monitoring system of claim 1, further including a tanker metering controller installed or mounted on a tanker vehicle.
15. The bulk fluid monitoring system of claim 14, wherein the controller is in communication with the monitoring device associated with the vat that is adapted to receive the bulk volume of fluid.
16. The bulk fluid monitoring system of claim 15, wherein the tanker vehicle has sensors for measuring at least the temperature of the bulk fluid contained in the vehicle tank over time.
17. The bulk fluid monitoring system of claim 14, wherein the tanker data measurements are collected by the controller and communicated to a remote server, the server processes the data from the processor relating to the comparison between the sensor information and the curve and the data from the controller relating to the vehicle's location and calculates an optimal driving route of the tanker vehicle for pickup and delivery time of the bulk fluid.
18. (canceled)
19. The bulk fluid monitoring system of claim 14, wherein the system includes multiple fluid volume, viability and readiness indicators each generated by one of a plurality of tanker metering controllers in spaced locations to prepare a transport schedule for a corresponding multiple of tanker vehicles.
20. The bulk fluid monitoring system of claim 14, wherein the curve is a stepped curve giving maximum permissible incrementally changing values sampled periodically.
21. The bulk fluid monitoring system of claim 14, wherein the curve is created by actual measurements of the time critical bulk fluid property taken over time using sensors in a vat adapted to perform like the sensors.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0069] The invention may be better understood from the following non-limiting description of preferred embodiments, in which:
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DETAILED DESCRIPTION OF THE DRAWINGS
[0078] Preferred features of the present invention will now be described with particular reference to the accompanying drawings. However, it is to be understood that the features illustrated in and described with reference to the drawings are not to be construed as limiting on the scope of the invention.
[0079] In a preferred embodiment of the present invention, a bulk fluid monitoring system including a processor in the form of a monitor 10 is provided as shown in
[0080] The flow rate sensor 135 is installed at or adjacent the inlet 102 and includes non-invasive or non-contacting pulse detection or infra-red techniques that measure flow rate without contaminating the fluid 110.
[0081] The fluid 110 in the form of milk requires cooling as soon as it enters the internal space 106 of the vat 100 for storage. There may be multiple milkings that each deliver a batch of milk per vat to the vat 100 over a period of time. Each influx of milk from a new milking not only increases the volume Vi of the fluid 110 in the vat 100, but also increases the temperature of the fluid 110 already contained in the vat 100. The milk 112 newly introduced to the vat 100 is warmer than the collected fluid 110 already in the vat internal space 106. The just-collected milk 112, typically may have a temperature of up to or around 37° C. The newly collected milk 112 mixes with the previously collected, and cooled, fluid 110. The previously stored fluid 110 is ideally stored at a target temperature T at or below a temperature according to a milk cooling curve. A cooling curve 220 suitable for the introduction of new milk 112 into the vat 100 is shown in
[0082] In the
[0083] During the first new milking period between about 4 and 6 pm, actively cooling of the vat's fluid 110 contents over a period of about 150 mins., from an initial temperature T spike of about 29° C. around 4.30 pm to about 2° C. at about 7 pm.
[0084] When an additional second or subsequent milking occurs in which a further batch of new milk 112 is delivered into the vat 100 having already received the first initial batch of fluid 110, the newly milked or obtained milk 112 is added to the existing stored fluid 110 in the vat 100. This is represented in the graph in
[0085] The added milk 112 of volume V.sub.2 from the second batch will have a higher temperature, compared to the ambient temperature, and compared to the already cooled fluid 110 in the vat 100. This causes an overall increase in the temperature of the fluid 110 in the vat 100, as well as an increase in the volume V of the mixture of milk fluid 110,112 in the vat 100 to just over 50% of the capacity of the vat 100 as represented by the volume line 210.
[0086]
[0087] The monitor 10 compares the data from the temperature sensors 120 to the desired temperature of the fluid 110 as represented by the cooling curve 220.
[0088] In
[0089] Advantageously, the processor 10 is used to control the sensors and generate alerts. The evaluation ad action procedure followed by the processor monitor 10 is shown in
[0095] The processor 10 is, in the embodiment shown, located remotely and adapted to receive and control the monitoring of a plurality of like milking operations at various scattered dairy installations. The processor 10 may generate the output 16 which in turn leads to the activation of an indicator 18. The indicator 18 is adapted to provide an audible or visual signal associated with the indicator 18 indicating that there is non-compliance in relation to one of the fluid property parameters. The indicator 18 may include a visual or audible indication of whether the properties of the bulk fluid 110 being monitored are within one of, or a plurality of, parameter standards, such as the cooling curve 220 for target temperature over time during delivery of first and second batch volumes V.sub.1,V.sub.2. The parameter standards are advantageously stored on one or more of the processor devices 10,150,160,300.
[0096] In the graph shown in
[0097] Milking times may vary. This has led the Applicant to develop milk cooling curves or cooling envelopes which provide a predetermined time-and-temperature requirement for freshly obtained milk from multiple batches obtained from separate milking events. The milk cooling curve is effectively the upper limit of acceptability of temperature of the collected milk at a time from start or completion of a milking event.
[0098] Keeping the fluid 110 in the vat 100 at temperatures below the predetermined time and temperature requirement indicated by the cooling curve 220 provides confidence for the dairy suppliers that the fluid 110 is safe for consumers.
[0099] There is also the added complication that milk transporters may pick up the fluid 110 contained in the vat 100 at different times taken from either the start of milking or at the end of the milking event. For example, a tanker 70 may take delivery of the fluid 110 within 3.5 hours from first milking (about 4 pm in
[0100] Ensuring the predetermined time-and-temperature requirements have been applied to the collected fluid 110 allows the vat 100 to contain the milk 110,112 from multiple milkings V.sub.1,V.sub.2, and to be transported prior to complete cooling, and still comply with standards.
[0101] To monitor temperatures of the fluid 110 in the vat 100, devices such as the Smarta Industrial SF104 Vat monitor sold by the Applicant may be used as the controller 10. This controller device 10 may be used to measure and communicate milk temperature, and to generate a response if parameters are exceeded and an alert is required.
[0102] The vat 100, in the present embodiment, is located remotely from the monitor 10, and data or information is communicated by any one or more of a number of suitable communication methods, including wired or wireless networks, such as mobile data networks, or satellite transmissions, and/or via the Internet.
[0103]
[0104] The monitor 10 provides information back to the controller 150 to allow on-site monitoring of properties of the fluid 110 in the vat 100. This may be useful if there are potential issues with the operation of the vat 100. Problems may include the fluid 110 not being cooled sufficiently to comply with one or more desired time and temperature requirements. Another advantage is that the monitor 10 may be used to output the data to an external resource or entity 300. This may include, for example, third parties such as milk producers, which may use the data to schedule deliveries, and log the data on the handling of the milk from collection to delivery. This better ensures integrity and safety of the product to consumers.
[0105] Therefore, the vat 100 can have data logged in relation to its content (eg. fluid 110), and that data may be made available to third parties such as logistics companies which may use information derived from the data to pick up the fluid 110 from the vat 100 and to deliver it to milk processors. The milk processors may use the data to confirm (or establish the opposite) that the milk complies with an applicable cooling curve standard. The standard may involve, for example, temperature and time data contained in the milk curves. The data provided by the monitor 10 may be used to record the temperature of the fluid 110 over time when it was in the vat 100.
[0106] The monitor 10 may control the monitoring of more than the one vat 100 (additional vats 101 are represented in
[0107] The temperature sensor 120 may include more than one temperature sensor, such that spaced sensors are located in different zones of the vat 100, or the inlet 102 or the outlet 104. The information from the temperature sensors 120,122, and/or the flow rate sensor 135 and/or the fluid level sensor 130, may be used to determine when the vat 100 is in use and when milking has commenced or completed.
[0108] For example, Food Standards Australia and New Zealand (FSANZ) guidelines for raw milk collection advise that milk should be cooled on farm to 5° C. within 3.5 hours from the start of milking. During milking, the temperature of the contents of the vat 100 will increase due to the milk being around 37 degrees when taken from animals.
[0109] As the new milk 112 flows to the vat 100, the level sensor 130 will indicate an increase in volume of the fluid 110 in the vat 100. The inflow of new of milk 112 will also result in an increase in the temperature of the fluid 110 in the vat 100, which is detected by temperature sensor 120 and/or temperature sensor 122. This is communicated to monitor 10.
[0110] The monitor 10 can determine the time that milking has started using this information and match it to the applicable standard milk cooling curve to determine whether the milk is being subjected to a rate of cooling that is within the cooling curve parameters and is otherwise handled appropriately. The monitor 10 may be used to schedule a pick up of the milk for delivery to a producer, or a milk processing and packaging installation. The producer may be permitted and equipped to remotely access the data and information supplied by the monitor 10 to schedule a pick-up and delivery, whilst also confirming compliance with the applicable standard(s). The memory of the monitor 10 can store the data to provide a history of the milk fluid 110,112. The producer may store the corresponding data for compliance and auditing purposes.
[0111] In comparison, European food standards for milk are based on the time that the milking is completed. The monitor 10 may use information from the fluid level sensor 130, and optionally may also use information from either or both of the temperature sensor(s) 120,122, or the flow rate sensor 135, to determine the end of a milking session. When milking finishes, the volume no longer increases, but stays static (as measured by the fluid level sensor 130), flow ceases (as measured by the flow rate sensor 135), or the temperature drops at a characteristic rate in that the temperature of the milk starts to decline due to the cooling provided by the vat 100 (as measured by either or all of the temperature sensors 120,122). From this information sent to the monitor 10, the monitor 10 can determine whether the milk fluid 110,112 is in compliance with the applicable standard, such as in Europe, in respect of which cooling is required based on the time milking is completed. Further, the monitor 10 may compare the data on the milk 110 in the vat 100 to determine whether it complies with both FSANZ and European standards.
[0112] The monitor 10 may store test criteria corresponding to one or more milk cooling curves (such as curve 220 or the FSANZ standard). The monitor 10 can store a number of cooling curves, including the FSANZ and European standards. The monitor 10 allows additional custom cooling curves to be input, installed or loaded or stored on the monitor 10. The monitor 10 can compare the information from the sensors 120 or 130, and/or additional sensors 122,135, said information being logged either on the monitor 10 or separately, for example on a separate memory or storage device 12, in data transfer communication with the monitor/processor 10 by either cable or wireless connection 14. Information from sensors 120, 122, 130 and 135, can be transmitted in real time to the monitor 10, or can be stored and compared. The information may be released to an interested party upon request of, for example, a milk producer, processor or logistics company.
[0113] The vat controller 150 can have additional inputs. These include connections to other electrical equipment, such as computer processors which schedule milking time starts. The other electrical equipment may be activated during milking to provide additional information on milking time starts and/or completion.
[0114] The monitor 10 can utilise software run on the remote server 160 as shown in
[0115] The monitor 10 can run one instance or operation for each vat 100. However, it is capable of receiving data from a number of vats 101, wherein said data from each vat 101 is managed, monitored, stored and reported separately.
[0116] The monitor 10 includes software that runs on dedicated hardware. The software can be designed to be specific to one vat 100 or to a group of vats 101. In the example, all of the vats 101 are located at one dairy or installation. In this case, the monitor 10 is located at the installation and is responsible for communication with external entities, such as logistics companies, producers, managers or milk processors, via standard communications methods, such as the Internet, mobile communications network, wireless networks or landline telephone networks.
[0117] In another aspect of the invention,
[0118] The monitor 10 is shown in
[0119] The batch volumes V.sub.1,V.sub.2, are displayed on the screen and show an operator the breakdown of time that each batch V.sub.1,V.sub.2 spent at key temperature markers 2.5, 5, 7.5, 10 and 12.5° C. in terms of the percentage of total time in the vat 100. The earlier batch V.sub.1 had a longer time to cool in the vat 100 and therefore
[0120] With reference to
[0121] The monitor 10 allows a user to log in to the system 1 with a barcode 83 or RFID scan using a scanner 84. By uploading data specific to the user and their corresponding installation(s) and/or vehicle, the scanning function 84 facilitates auto loading of a calculated and allocated route. This is uploaded from the monitor 10 to the server 160.
[0122] The monitor 10 is coupled to the cloud-based platform loaded on the server 160 to provide a scalable solution that is accessible from any internet connected device. The platform is preferably hosted in a Virtual Private Cloud computing environment in a remote data center with separate geolocation of backups to ensure: [0123] security of data; [0124] continuous system availability and reliability; and [0125] simple web browser access to a cloud-based portal.
[0126] The solution provided by the system 1 of the invention means that end users are not required to own and maintain their own application servers, networks and connections.
[0135] Referring to
[0136] The monitor or controller 10,80 has the following features: [0137] full stainless steel and marine grade alloy sealed enclosure 86 designed with multiple mounting points for ease of installation on the vehicle 70; [0138] 10 inch (250 mm) display and touchscreen 82 that provides easy to read display and fully functional touchscreen menus and keyboards for easy use; [0139] operator control buttons or knobs 90, which may be in the form of 4 LED back-lit stainless steel buttons that perform to allow the user to select full normal pickup 91, route 92, delivery 93, and CIP (Cleaned in Place) 94 operational functions; [0140] RFID reader 84 for user/driver login/device access; [0141] 2 dimensional barcode reader 83 to read normal barcodes and QR codes to allow user access functions, settings autoload, route number/detail autoload, and/or factory specific number autoload. This may reduce the need for any manual entry of information into the monitor or controller 10,80 by the user and may eliminate manual data entry mistakes; [0142] inbuilt 3G/4G modem 87 that allows the device to connect to the server 160 to get data including users, routes, suppliers, factories etc and upload route, pickups, CIP, and unload data; [0143] inbuilt GPS unit 88 to allow the device to confirm a current pickup of, for example, batch volumes V.sub.1,V.sub.2, by the supplier pre-loaded geo-location data and real-time tracking of devices and transport 70; [0144] built to allow for multiple pumps 3,4, multiple temp sensors 120,122, multiple samplers 6, control of up to 24 solenoids 8,126 and receive up to 12 digital and analogue inputs 20; [0145] connects to docket printer 9 that prints full size 80 mm docket labels, including logos, barcodes and QR codes—and prints 60 mm labels with text, logos, barcodes, and QR codes; [0146] programmed to allow for routes, pickups, CIP, factory numbers, multiple samples, sample flushing/cleaning, multiple vats, trans-ship function; and/or [0147] programmed to enable calibration self-calculation with certified electronic sealing that allows setting up or calibration by an operator's appropriate selection of the LED buttons 90.
[0148] The coupled monitoring and controller systems shown in
[0149] In the present specification, terms such as “apparatus”, “means”, “device” and “member” may refer to singular or plural items and are terms intended to refer to a set of properties, functions or characteristics performed by one or more items or components having one or more parts. It is envisaged that where an “apparatus”, “means”, “device” or “member” or similar term is described as being a unitary object, then a functionally equivalent object having multiple components is considered to fall within the scope of the term, and similarly, where an “apparatus”, “assembly”, “means”, “device” or “member” is described as having multiple components, a functionally equivalent but unitary object is also considered to fall within the scope of the term, unless the contrary is expressly stated or the context requires otherwise.
[0150] Orientational terms used in the specification and claims such as vertical, horizontal, top, bottom, upper and lower are to be interpreted as relational and are based on the premise that the component, item, article, apparatus, device or instrument will usually be considered in a particular orientation, such as with the vat 100 upright. It will be appreciated by those skilled in the art that many modifications and variations may be made to the methods of the invention described herein without departing from the spirit and scope of the invention.