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EP4616130A1 - Procédé de mesure de température de produit moyenne dans des présentoirs frigorifiques - Google Patents

Procédé de mesure de température de produit moyenne dans des présentoirs frigorifiques

Info

Publication number
EP4616130A1
EP4616130A1 EP23907994.0A EP23907994A EP4616130A1 EP 4616130 A1 EP4616130 A1 EP 4616130A1 EP 23907994 A EP23907994 A EP 23907994A EP 4616130 A1 EP4616130 A1 EP 4616130A1
Authority
EP
European Patent Office
Prior art keywords
controller
temperature
refrigerated display
product temperature
average product
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23907994.0A
Other languages
German (de)
English (en)
Inventor
Çagri BALKAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaplanlar Sogutma Sanayi Ve Ticaret AS
Original Assignee
Kaplanlar Sogutma Sanayi Ve Ticaret AS
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 Kaplanlar Sogutma Sanayi Ve Ticaret AS filed Critical Kaplanlar Sogutma Sanayi Ve Ticaret AS
Priority claimed from PCT/TR2023/051492 external-priority patent/WO2024136803A1/fr
Publication of EP4616130A1 publication Critical patent/EP4616130A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0478—Control or safety arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment

Definitions

  • the invention relates to an average product temperature measurement method developed to ensure the protection of product food safety in refrigerated display cabinets used in the retail industry, which enables the calculation of the displayed product temperatures and the protection of the displayed products by taking action in advance in case of possible fault conditions.
  • the invention particularly relates to an average product temperature measurement method using temperature sensors already present in refrigerated display cabinets, in order to interpret and calculate data from these sensors.
  • the patent document US2022011045A1 is a food safety system for foodstuffs in refrigerated environments, comprising a temperature sensor, a power supply, a data transmission element and a temperature sensor unit.
  • the temperature sensor unit is positioned in a cooler, said cooler having a predefined location of a plurality of foodstuffs.
  • a control center unit having a computer processor and a memory is adapted to execute a deterministic mode function for predicting a center temperature change of such a food item at a predefined food item position in said cooler.
  • the deterministic mode allows to measure the estimated temperature of the foodstuff based on the heat transfer parameters related to the predefined foodstuff location of the cooler used, the food - specific coefficients related to the type of foodstuff taken from a group of food types, the ambient temperature measured by the temperature sensor and the estimated temperature of the foodstuff.
  • the said invention places too many devices and sensors and is far from adapting to the dynamic conditions realized in the display cabinets of the retail industry.
  • the patent document US2020143294A1 provides various embodiments for intelligent cooling state classification in an Internet of Things (loT) computing environment by a processor. It provides a method/system for automatically classifying cooling states using a single temperature sensor signal using an loT computer within a cooling system.
  • a signal from a single loT sensor associated with a refrigeration system can be used to help automatically classify refrigeration states based on a test phase or operational phase.
  • the operation phase can be defined to continuously collect temperature data over the time period selected by the loT sensor, to apply noise removal to multiple signal distortions from multiple sources, and/or to generate a report that automatically labels the cooling.
  • the inventive average product temperature measurement method aims to develop an average product temperature measurement method by deriving the data of the sensors that provide the operation of the refrigerated display cabinets and are currently required to be included in the refrigerated display cabinets, instead of the product temperature sensors used to ensure the traceability of food safety in the sector. In this way, product temperatures can be determined without creating an additional cost on refrigerated display cabinets and possible failure situations can be detected in advance.
  • the inventive method for measuring the average product temperature is capable of calculating the average product temperature and the range of product temperature classes, i.e. the highest and lowest product temperatures.
  • the method of the invention relates to a method for measuring the average product temperature of a refrigerated display cabinet for protecting the displayed products by ensuring that the temperatures of the displayed products and possible fault conditions can be acted upon in advance in order to protect food safety.
  • this method consists of the following steps:
  • the method of the invention is also based on the data obtained as a result of testing and operation (the cabinets subject to the invention are tested according to ISO 23953-2 and with this test, sensors are placed on all products during the operation of the cabinet in the test room and at the same time the data from the sensors in the cabinet are recorded.
  • the data obtained as a result of the test and operation are these product temperatures and the sensor temperatures on the cabinet) and the database of the controller provided as a result of deep learning and the data provided instantaneous flow with the algorithm running on the controller.
  • Figure - 1 is a schematic drawing of the cross - section of a refrigerated storage cabinet on which said average product temperature measurement method is operated.
  • Cooling is a thermodynamic heat transfer cycle that utilizes the latent thermal properties of the refrigerant to transfer heat from a colder medium to a warmer medium (by removing heat). In order for this heat transfer to take place, it is essential that the refrigerant used has a thermodynamic structure lower than the temperature of the medium to be cooled and higher than the temperature of the medium to be heated.
  • Figure 1 shows a schematic drawing of a cross - section of a preferred embodiment of a refrigerated display cabinet (1 ) on which said average product temperature measurement method is to operate.
  • said refrigerated display cabinet (1 ) comprising of from the following; a compressor (1.1 ) driving the refrigerant, an evaporator unit (1 .2) used to provide heat transfer and to cool the ambient air, a condenser unit (1 .3) that ensures the completion of the thermodynamic cycle and the transition of the fluid from gaseous to liquid state, an expansion valve (1 .4) for controlling the flow and switching it from liquid to gaseous state.
  • the aforementioned compressor (1.1 ), evaporator unit (1 .2), condenser unit (1 .3) and expansion valve (1 .4) are preferably connected to each other by copper tubing.
  • the primary sensor (1.5) and the secondary sensor (1.6) are connected to the controller (1.7) by a cable assembly.
  • the user interface (Ul) is software running on the controller (1 .7).
  • the controller (1 .7) can be accessed wirelessly via the Internet or by wired connection.
  • Said refrigerated display cabinet (1 ) includes at least one primary sensor (1 .5) and at least one secondary sensor (1.6), which enable dynamic measurement of the conditions of the display cabinet (1 ). There is at least one controller (1.7) that interprets the data received from the mentioned sensors and controls the parameters and operating functions of the refrigerated display cabinet.
  • the operations of the controller (1 .7) for receiving and interpreting data, controlling parameters and operating functions are as follows:
  • the data received from the primary sensor (1.5) and the secondary sensor (1.6) via cable are read through the controller (1.7).
  • the most commonly used class is M1.
  • the temperatures of the products displayed must be in the range of -I 'C +5C (this range is the range in which food safety is ensured if the cabinet is an M1 class cabinet and is determined in accordance with the relevant ISO standards).
  • the data received from the blowing and suction points of the cabinets with temperature sensors (1 .5, 1 .6) are read on the controller (1.7).
  • Figure - 2 shows the user interface (Ul) of this average product temperature measurement method.
  • the user interface (Ul) can display the average product temperatures as well as the instantaneous values taken from the primary sensor (1 .5) and the secondary sensor (1 .6).
  • the refrigerated display cabinet (1 ) of the invention uses the capabilities of the controller (1.7) to functionally derive the product temperature as a function of the temperature data received from the primary sensor (1.5) and the secondary sensor (1.6) and without using a physical product temperature sensor.
  • the primary sensor (1.5) and the secondary sensor (1.6) are referred to as blowing and suction respectively in the literature.
  • the temperature values derived from the data obtained from these sensors were also verified by the tests performed in accordance with TS EN ISO 23953-2 standard.
  • the inventive refrigerated display cabinet (1 ) performs the following process steps to calculate the average product temperature.
  • the algorithm running on the controller (1 .7) analyses the data provided with instantaneous flow, determines the trends of the product temperatures in a certain period of time with the forecasting method and warns the user by specifying it on the user interface (Ul).
  • the warning process is as follows: When the average product temperature rises above the temperature determined according to the cabinet class, if the cabinet is a Class M1 cabinet, the controller (1.7) activates the alarm function when the temperature rises above +5 ⁇ C. The system administrator is then notified via the user interface (Ul) and the status is displayed).

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un procédé de mesure de température de produit moyenne développé pour assurer la protection de la sécurité alimentaire de produits dans des présentoirs frigorifiques utilisés dans le secteur de la vente au détail, ce qui permet de calculer les températures de produits présentés et de protéger les produits présentés en anticipant dans le cas de conditions de défaillance possibles. L'invention concerne également un procédé de mesure de température de produit moyenne pour interpréter et calculer les données en provenance de ces capteurs, à l'aide des capteurs de température déjà présents dans des présentoirs frigorifiques.
EP23907994.0A 2022-12-20 2023-12-07 Procédé de mesure de température de produit moyenne dans des présentoirs frigorifiques Pending EP4616130A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR202219738 2022-12-20
PCT/TR2023/051492 WO2024136803A1 (fr) 2022-12-20 2023-12-07 Procédé de mesure de température de produit moyenne dans des présentoirs frigorifiques

Publications (1)

Publication Number Publication Date
EP4616130A1 true EP4616130A1 (fr) 2025-09-17

Family

ID=96807297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907994.0A Pending EP4616130A1 (fr) 2022-12-20 2023-12-07 Procédé de mesure de température de produit moyenne dans des présentoirs frigorifiques

Country Status (1)

Country Link
EP (1) EP4616130A1 (fr)

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