CN108592512B - Cloud service-based preservation system - Google Patents

Cloud service-based preservation system Download PDF

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Publication number
CN108592512B
CN108592512B CN201810366238.4A CN201810366238A CN108592512B CN 108592512 B CN108592512 B CN 108592512B CN 201810366238 A CN201810366238 A CN 201810366238A CN 108592512 B CN108592512 B CN 108592512B
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sub
cloud server
instruction
refrigerator
pressure
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CN108592512A (en
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刘晓燕
马肃
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Quanzhou infill Information Technology Co., Ltd
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Quanzhou Infill Information Technology Co Ltd
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    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/021—Charging, supporting, and discharging the articles to be cooled by shelves combined with trays
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention discloses a cloud service-dependent preservation system, which comprises a common refrigerator, an intelligent tray and a cloud server, wherein the common refrigerator is connected with the intelligent tray through a network; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction. The cloud service-based preservation system disclosed by the invention can realize food freshness identification on the basis of the conventional common refrigerator.

Description

Cloud service-based preservation system
Technical Field
The invention relates to the field of preservation, in particular to a cloud service-based preservation system.
Background
To take full advantage of time, people often purchase a large number of items at a time to reduce the number of purchases. And a large number of articles, especially fragile articles, need to be kept in a refrigerator. However, when there are many items, the user typically does not remember which item was purchased on which day, thus often resulting in the item being discovered after it has been worn out.
The intelligent refrigerators existing in the prior art can know edibility of an article based on a chemical analysis principle, but such refrigerators are extremely expensive and extremely power consuming.
Disclosure of Invention
The invention provides a cloud service-dependent preservation system, which is characterized by comprising a common refrigerator, an intelligent tray and a cloud server; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction.
The cloud service-based preservation system further meets conditions, wherein the communication conditions comprise door opening signals and pressure; the door opening signal is sent by the common refrigerator, and the pressure is sent by the intelligent tray.
The fresh-keeping system based on the cloud service further meets the condition, the common refrigerator comprises a sensor, the sensor can detect whether a refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
This fresh-keeping system that relies on cloud still further satisfies the condition, intelligent tray includes a plurality of submodule pieces, the submodule piece includes pressure sensor, led pilot lamp, wireless communicator.
The cloud service-based preservation system further meets the conditions, and the working process of the cloud service-based preservation system is as follows:
(1) placing an article on an intelligent tray, detecting a pressure value by pressure sensors fully distributed in the intelligent tray and transmitting the value to a cloud server;
(2) the cloud server judges whether the articles comprise natural articles or not based on the pressure numerical value, if so, a timer is allocated to each natural article, the serial numbers of the sub-modules corresponding to each natural article are packaged into a serial number set, and the timer starts to time;
(3) when a refrigerator door is opened, a sensor sends door opening information to a cloud server, the cloud server immediately reads a timing result of each timer after receiving the door opening information, when the timing result reaches a first numerical value, the cloud server sends a first instruction to a wireless communicator corresponding to each serial number in a serial number set, when the timing result reaches a second numerical value, the cloud server sends a second instruction to the wireless communicator corresponding to each serial number in the serial number set, and when the timing result reaches a third numerical value, the cloud server sends a third instruction to the wireless communicator corresponding to each serial number in the serial number set;
(4) the wireless communicator forwards the received instruction to the led indicating lamp, the led indicating lamp presents yellow when the instruction is a first instruction, the led indicating lamp presents red when the instruction is a second instruction, and the led indicating lamp presents purple when the instruction is a third instruction.
The cloud service-based preservation system further meets the conditions, the common refrigerator comprises a refrigerator body and a plurality of limiting parts arranged in the refrigerator body, and the intelligent tray is matched with the limiting parts for use; the refrigerator body comprises a fixed body and a refrigerator door, and a space defined by the fixed body and the refrigerator door is a storage space; the fixed body comprises a first inner surface which is directly contacted with the storage space and is vertical to the refrigerator door, a second inner surface which is parallel to the refrigerator door, and a third inner surface which is vertical to the refrigerator door and is parallel to the first inner surface; the limiting part comprises a first limiting part fixed on the first inner surface and a second limiting part fixed on the third inner surface, and the plane of the first limiting part and the plane of the second limiting part are perpendicular to the first inner surface, the second inner surface and the third inner surface; the intelligent tray is detachably fixed in the storage space based on the limitation of the limiting part.
The cloud service-based preservation system further meets the conditions, and the intelligent tray comprises a protection top layer, a pcb board layer, a piezoelectric material layer and a protection bottom layer; the areas of the pcb board layer and the piezoelectric material layer are the same as the area of the protective top layer.
The refreshing system based on the cloud service further meets the condition that the front surface of the pcb board layer comprises a plurality of round sub-modules, the plurality of sub-modules are adjacent and non-overlapped, and the whole formed by all the sub-modules forms the pcb board layer; the back surface of the pcb board layer comprises a first capacitor, a charge-discharge controller and a first storage battery which are electrically connected in sequence; the front is the pcb sheet with the relative one side of protection top layer, the reverse is the pcb sheet with the relative one side of piezoelectric material layer.
The cloud service-based preservation system further meets the conditions, and the sub-modules comprise pressure sensors, led indicator lamps and wireless communicators; the pressure sensor is used for detecting pressure exerted on the sub-module and transmitting the pressure to the wireless communicator; the wireless communicator uploads the pressure and the sub-module serial number of the pressure to a cloud server, receives an instruction from the cloud server and forwards the instruction to the led indicator lamp; and the led indicator lamp displays different colors according to the instruction.
The cloud server generates a three-dimensional characteristic diagram according to the pressure, the corresponding sub-module serial numbers, the pre-stored sub-module serial numbers and the corresponding actual positions of the sub-modules, numerical values on an x axis of the three-dimensional characteristic diagram represent positions of transverse axes of the sub-modules on the pcb layer, numerical values on a y axis represent positions of longitudinal axes of the sub-modules on the pcb layer, and numerical values on a z axis represent the pressure born by the sub-modules.
The refreshing system based on the cloud service further meets the condition that the cloud server further judges the number of local maximum values of the three-dimensional characteristic chart in the z-axis direction, when the number of the local maximum values is 1, the cloud server judges whether a curved surface graph formed by taking the local maximum values as vertexes and taking points with the z-axis numerical value of 0 or x and the y-axis numerical value of the maximum value or the minimum value as boundaries is a normal distribution-like curved surface or not, if yes, the placed object is judged to be a natural object, and the server stores the curved surface graph and packs serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set; when the number of the local maximum values is a positive integer larger than 1, the cloud server judges whether each curved surface graph formed by taking one local maximum value as a vertex and taking a z-axis value as 0 or an x-axis value and a y-axis value as the maximum or the minimum value or taking a point between the local maximum value and other local maximum values with the z-axis value as a boundary is a normal distribution curve-like surface, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set to obtain a plurality of serial number sets.
The cloud service-based preservation system further meets the condition that any section of the normal-like distribution curved surface meets the normal-like distribution curve.
The cloud service-based preservation system further meets the condition that the similarity of the quasi-normal distribution curve and a standard normal distribution curve reaches more than 80%.
The refreshing system based on the cloud service further meets the condition that the actual position is the position of a certain submodule on the pcb layer relative to other submodules.
The cloud service-based preservation system further meets the condition that the piezoelectric material layer is used for directly converting pressure into electric energy; the first capacitor is directly electrically connected with the piezoelectric material layer and is used for storing electric energy generated by the piezoelectric material layer in real time; the first capacitor is connected with the first storage battery through the charge-discharge controller and used for discharging to the first storage battery based on the control of the charge-discharge controller so as to charge the first storage battery.
The cloud service-based preservation system further meets the condition that the charge and discharge controller detects the soc of the first storage battery in real time, and controls the first capacitor to charge the first storage battery when the soc is reduced to 40%; and when the soc is increased to 95%, the charge and discharge controller controls the first capacitor to stop charging the first storage battery.
The cloud service-based preservation system further meets the condition that the first storage battery is connected with the charge and discharge controller through a lead arranged on the reverse side and is used for providing working power for the charge and discharge controller; the first storage battery is electrically connected with the pressure sensor, the led indicator light and the wireless communicator which are arranged in each sub-module respectively through lead wires penetrating through the front surface and the back surface, and further provides power supply for the pressure sensor, the led indicator light and the wireless communicator.
The fresh-keeping system based on the cloud service further meets the condition, the refrigerator door further comprises a sensor, the sensor can detect whether the refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
The cloud service-based preservation system further meets the condition that the first limiting part and the second limiting part are circular-arc-shaped bulges.
The beneficial technical effects obtained by the invention are as follows:
1. the function of monitoring the freshness of the articles can be realized by utilizing a common refrigerator and an intelligent tray, and the intelligent tray can be applied to different common refrigerators, so that the cost is greatly reduced;
2. the intelligent tray which can be flexibly configured is arranged, so that the position of the intelligent tray can be set according to the specification of the article, and the freshness of the article can be detected in any position;
3. the piezoelectric material is adopted for supplying power, and the LED display is realized only when the refrigerator is opened, so that the energy consumption is greatly reduced;
4. computing processing is realized based on the cloud server, and the requirement of a user end on hardware is reduced;
5. and the three-dimensional pattern recognition is adopted to judge whether the articles need to be monitored, so that the articles are selectively screened, and unnecessary detection is reduced.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a block diagram of an intelligent pallet of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The first embodiment.
Please refer to the attached drawing.
A cloud service-based preservation system is characterized by comprising a common refrigerator, an intelligent tray and a cloud server; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction.
The communication condition comprises a door opening signal and pressure; the door opening signal is sent by the common refrigerator, and the pressure is sent by the intelligent tray.
The common refrigerator comprises a sensor, wherein the sensor can detect whether a refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
The intelligent tray comprises a plurality of sub-modules, and the sub-modules comprise pressure sensors, led indicating lamps and wireless communicators.
The working process of the cloud service-based preservation system is as follows:
(1) placing an article on an intelligent tray, detecting a pressure value by pressure sensors fully distributed in the intelligent tray and transmitting the value to a cloud server;
(2) the cloud server judges whether the articles comprise natural articles or not based on the pressure numerical value, if so, a timer is allocated to each natural article, the serial numbers of the sub-modules corresponding to each natural article are packaged into a serial number set, and the timer starts to time;
(3) when a refrigerator door is opened, a sensor sends door opening information to a cloud server, the cloud server immediately reads a timing result of each timer after receiving the door opening information, when the timing result reaches a first numerical value, the cloud server sends a first instruction to a wireless communicator corresponding to each serial number in a serial number set, when the timing result reaches a second numerical value, the cloud server sends a second instruction to the wireless communicator corresponding to each serial number in the serial number set, and when the timing result reaches a third numerical value, the cloud server sends a third instruction to the wireless communicator corresponding to each serial number in the serial number set;
(4) the wireless communicator forwards the received instruction to the led indicating lamp, the led indicating lamp presents yellow when the instruction is a first instruction, the led indicating lamp presents red when the instruction is a second instruction, and the led indicating lamp presents purple when the instruction is a third instruction.
The common refrigerator comprises a refrigerator body and a plurality of limiting parts arranged in the refrigerator body, wherein the intelligent tray is matched with the limiting parts for use; the refrigerator body comprises a fixed body and a refrigerator door, and a space defined by the fixed body and the refrigerator door is a storage space; the fixed body comprises a first inner surface which is directly contacted with the storage space and is vertical to the refrigerator door, a second inner surface which is parallel to the refrigerator door, and a third inner surface which is vertical to the refrigerator door and is parallel to the first inner surface; the limiting part comprises a first limiting part fixed on the first inner surface and a second limiting part fixed on the third inner surface, and the plane of the first limiting part and the plane of the second limiting part are perpendicular to the first inner surface, the second inner surface and the third inner surface; the intelligent tray is detachably fixed in the storage space based on the limitation of the limiting part.
The intelligent tray comprises a protective top layer, a pcb board layer, a piezoelectric material layer and a protective bottom layer; the areas of the pcb board layer and the piezoelectric material layer are the same as the area of the protective top layer.
The front surface of the pcb board layer comprises a plurality of round sub-modules, the plurality of sub-modules are adjacent and non-overlapping, and the whole formed by all the sub-modules forms the pcb board layer; the back surface of the pcb board layer comprises a first capacitor, a charge-discharge controller and a first storage battery which are electrically connected in sequence; the front is the pcb sheet with the relative one side of protection top layer, the reverse is the pcb sheet with the relative one side of piezoelectric material layer.
The sub-module comprises a pressure sensor, an led indicator light and a wireless communicator; the pressure sensor is used for detecting pressure exerted on the sub-module and transmitting the pressure to the wireless communicator; the wireless communicator uploads the pressure and the sub-module serial number of the pressure to a cloud server, receives an instruction from the cloud server and forwards the instruction to the led indicator lamp; and the led indicator lamp displays different colors according to the instruction.
And the cloud server generates a three-dimensional characteristic diagram according to the pressure and the corresponding sub-module serial number and the corresponding relation between the pre-stored sub-module serial number and the actual position of the sub-module, wherein the numerical value on the x axis of the three-dimensional characteristic diagram represents the position of the cross axis of the sub-module on the pcb layer, the numerical value on the y axis represents the position of the longitudinal axis of the sub-module on the pcb layer, and the numerical value on the z axis represents the pressure born by the sub-module.
The cloud server further judges the number of local maximum values of the three-dimensional characteristic diagram in the z-axis direction, when the number of the local maximum values is 1, the cloud server judges whether a curved surface graph formed by taking the local maximum values as vertexes and taking points with the z-axis numerical value of 0 or the x and the y-axis numerical value of the maximum or the minimum value as boundaries is a normal distribution-like curved surface or not, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a sequence number set; when the number of the local maximum values is a positive integer larger than 1, the cloud server judges whether each curved surface graph formed by taking one local maximum value as a vertex and taking a z-axis value as 0 or an x-axis value and a y-axis value as the maximum or the minimum value or taking a point between the local maximum value and other local maximum values with the z-axis value as a boundary is a normal distribution curve-like surface, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set to obtain a plurality of serial number sets.
The quasi-normal distribution curved surface is a curved surface of which any section meets the quasi-normal distribution curve.
The similar normal distribution curve has similarity of more than 80% with the standard normal distribution curve.
The actual position is the position of a certain submodule on the pcb board layer relative to other submodules.
The piezoelectric material layer is used for directly converting pressure into electric energy; the first capacitor is directly electrically connected with the piezoelectric material layer and is used for storing electric energy generated by the piezoelectric material layer in real time; the first capacitor is connected with the first storage battery through the charge-discharge controller and used for discharging to the first storage battery based on the control of the charge-discharge controller so as to charge the first storage battery.
The charge and discharge controller detects the soc of the first storage battery in real time, and controls the first capacitor to charge the first storage battery when the soc is reduced to 40%; and when the soc is increased to 95%, the charge and discharge controller controls the first capacitor to stop charging the first storage battery.
Because the temperature of the application environment is low, a high SOC lower limit value needs to be set, and 40% of the SOC lower limit value is a value which can ensure the working requirement and the service life and is determined based on an actual test; meanwhile, in order to reduce the serious reduction of the battery life caused by the high power consumption, 100% cannot be set as an upper limit, and therefore, an upper limit of 95% is set for balancing the service life and the service efficiency.
The first storage battery is connected with the charge and discharge controller through a lead arranged on the reverse side and is used for providing working power of the charge and discharge controller; the first storage battery is electrically connected with the pressure sensor, the led indicator light and the wireless communicator which are arranged in each sub-module respectively through lead wires penetrating through the front surface and the back surface, and further provides power supply for the pressure sensor, the led indicator light and the wireless communicator.
The refrigerator door also comprises a sensor, wherein the sensor can detect whether the refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
The first limiting part and the second limiting part are circular arc-shaped bulges.
Example two.
A cloud service-based preservation system is characterized by comprising a common refrigerator, an intelligent tray and a cloud server; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction.
The communication condition comprises a door opening signal and pressure; the door opening signal is sent by the common refrigerator, and the pressure is sent by the intelligent tray.
The common refrigerator comprises a sensor, wherein the sensor can detect whether a refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
The intelligent tray comprises a plurality of sub-modules, and the sub-modules comprise pressure sensors, led indicating lamps and wireless communicators.
The working process of the cloud service-based preservation system is as follows:
(1) placing an article on an intelligent tray, detecting a pressure value by pressure sensors fully distributed in the intelligent tray and transmitting the value to a cloud server;
(2) the cloud server judges whether the articles comprise natural articles or not based on the pressure numerical value, if so, a timer is allocated to each natural article, the serial numbers of the sub-modules corresponding to each natural article are packaged into a serial number set, and the timer starts to time;
(3) when a refrigerator door is opened, a sensor sends door opening information to a cloud server, the cloud server immediately reads a timing result of each timer after receiving the door opening information, when the timing result reaches a first numerical value, the cloud server sends a first instruction to a wireless communicator corresponding to each serial number in a serial number set, when the timing result reaches a second numerical value, the cloud server sends a second instruction to the wireless communicator corresponding to each serial number in the serial number set, and when the timing result reaches a third numerical value, the cloud server sends a third instruction to the wireless communicator corresponding to each serial number in the serial number set;
(4) the wireless communicator forwards the received instruction to the led indicating lamp, the led indicating lamp presents yellow when the instruction is a first instruction, the led indicating lamp presents red when the instruction is a second instruction, and the led indicating lamp presents purple when the instruction is a third instruction.
The common refrigerator comprises a refrigerator body and a plurality of limiting parts arranged in the refrigerator body, wherein the intelligent tray is matched with the limiting parts for use; the refrigerator body comprises a fixed body and a refrigerator door, and a space defined by the fixed body and the refrigerator door is a storage space; the fixed body comprises a first inner surface which is directly contacted with the storage space and is vertical to the refrigerator door, a second inner surface which is parallel to the refrigerator door, and a third inner surface which is vertical to the refrigerator door and is parallel to the first inner surface; the limiting part comprises a first limiting part fixed on the first inner surface and a second limiting part fixed on the third inner surface, and the plane of the first limiting part and the plane of the second limiting part are perpendicular to the first inner surface, the second inner surface and the third inner surface; the intelligent tray is detachably fixed in the storage space based on the limitation of the limiting part.
The intelligent tray comprises a protective top layer, a pcb board layer, a piezoelectric material layer and a protective bottom layer; the areas of the pcb board layer and the piezoelectric material layer are the same as the area of the protective top layer.
The front surface of the pcb board layer comprises a plurality of round sub-modules, the plurality of sub-modules are adjacent and non-overlapping, and the whole formed by all the sub-modules forms the pcb board layer; the back surface of the pcb board layer comprises a first capacitor, a charge-discharge controller and a first storage battery which are electrically connected in sequence; the front is the pcb sheet with the relative one side of protection top layer, the reverse is the pcb sheet with the relative one side of piezoelectric material layer.
The sub-module comprises a pressure sensor, an led indicator light and a wireless communicator; the pressure sensor is used for detecting pressure exerted on the sub-module and transmitting the pressure to the wireless communicator; the wireless communicator uploads the pressure and the sub-module serial number of the pressure to a cloud server, receives an instruction from the cloud server and forwards the instruction to the led indicator lamp; and the led indicator lamp displays different colors according to the instruction.
And the cloud server generates a three-dimensional characteristic diagram according to the pressure and the corresponding sub-module serial number and the corresponding relation between the pre-stored sub-module serial number and the actual position of the sub-module, wherein the numerical value on the x axis of the three-dimensional characteristic diagram represents the position of the cross axis of the sub-module on the pcb layer, the numerical value on the y axis represents the position of the longitudinal axis of the sub-module on the pcb layer, and the numerical value on the z axis represents the pressure born by the sub-module.
The cloud server further judges the number of local maximum values of the three-dimensional characteristic diagram in the z-axis direction, when the number of the local maximum values is 1, the cloud server judges whether a curved surface graph formed by taking the local maximum values as vertexes and taking points with the z-axis numerical value of 0 or the x and the y-axis numerical value of the maximum or the minimum value as boundaries is a normal distribution-like curved surface or not, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a sequence number set; when the number of the local maximum values is a positive integer larger than 1, the cloud server judges whether each curved surface graph formed by taking one local maximum value as a vertex and taking a z-axis value as 0 or an x-axis value and a y-axis value as the maximum or the minimum value or taking a point between the local maximum value and other local maximum values with the z-axis value as a boundary is a normal distribution curve-like surface, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set to obtain a plurality of serial number sets.
The quasi-normal distribution curved surface is a curved surface of which any section meets the quasi-normal distribution curve.
The similar normal distribution curve has similarity of more than 80% with the standard normal distribution curve.
The actual position is the position of a certain submodule on the pcb board layer relative to other submodules.
The piezoelectric material layer is used for directly converting pressure into electric energy; the first capacitor is directly electrically connected with the piezoelectric material layer and is used for storing electric energy generated by the piezoelectric material layer in real time; the first capacitor is connected with the first storage battery through the charge-discharge controller and used for discharging to the first storage battery based on the control of the charge-discharge controller so as to charge the first storage battery.
The charge and discharge controller detects the soc of the first storage battery in real time, and controls the first capacitor to charge the first storage battery when the soc is reduced to 40%; and when the soc is increased to 95%, the charge and discharge controller controls the first capacitor to stop charging the first storage battery.
Because the temperature of the application environment is low, a high SOC lower limit value needs to be set, and 40% of the SOC lower limit value is a value which can ensure the working requirement and the service life and is determined based on an actual test; meanwhile, in order to reduce the serious reduction of the battery life caused by the high power consumption, 100% cannot be set as an upper limit, and therefore, an upper limit of 95% is set for balancing the service life and the service efficiency.
The first storage battery is connected with the charge and discharge controller through a lead arranged on the reverse side and is used for providing working power of the charge and discharge controller; the first storage battery is electrically connected with the pressure sensor, the led indicator light and the wireless communicator which are arranged in each sub-module respectively through lead wires penetrating through the front surface and the back surface, and further provides power supply for the pressure sensor, the led indicator light and the wireless communicator.
The refrigerator door also comprises a sensor, a timer and an alarm; the sensor can detect whether the refrigerator door is opened or not and whether the refrigerator door is closed or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server; the timer starts to time when the sensor detects that the refrigerator door is opened and is cleared when the refrigerator door is closed; and the alarm gives out sound alarm when the timing result of the timer reaches the preset upper time limit.
The first limiting part and the second limiting part are circular arc-shaped bulges.
Example three.
A cloud service-based preservation system is characterized by comprising a common refrigerator, an intelligent tray and a cloud server; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction.
The communication condition comprises a door opening signal and pressure; the door opening signal is sent by the common refrigerator, and the pressure is sent by the intelligent tray.
The common refrigerator comprises a sensor, wherein the sensor can detect whether a refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server.
The intelligent tray comprises a plurality of sub-modules, and the sub-modules comprise pressure sensors, led indicating lamps and wireless communicators.
The working process of the cloud service-based preservation system is as follows:
(1) placing an article on an intelligent tray, detecting a pressure value by pressure sensors fully distributed in the intelligent tray and transmitting the value to a cloud server;
(2) the cloud server judges whether the articles comprise natural articles or not based on the pressure numerical value, if so, a timer is allocated to each natural article, the serial numbers of the sub-modules corresponding to each natural article are packaged into a serial number set, and the timer starts to time;
(3) when a refrigerator door is opened, a sensor sends door opening information to a cloud server, the cloud server immediately reads a timing result of each timer after receiving the door opening information, when the timing result reaches a first numerical value, the cloud server sends a first instruction to a wireless communicator corresponding to each serial number in a serial number set, when the timing result reaches a second numerical value, the cloud server sends a second instruction to the wireless communicator corresponding to each serial number in the serial number set, and when the timing result reaches a third numerical value, the cloud server sends a third instruction to the wireless communicator corresponding to each serial number in the serial number set;
(4) the wireless communicator forwards the received instruction to the led indicating lamp, the led indicating lamp presents yellow when the instruction is a first instruction, the led indicating lamp presents red when the instruction is a second instruction, and the led indicating lamp presents purple when the instruction is a third instruction.
The common refrigerator comprises a refrigerator body and a plurality of limiting parts arranged in the refrigerator body, wherein the intelligent tray is matched with the limiting parts for use; the refrigerator body comprises a fixed body and a refrigerator door, and a space defined by the fixed body and the refrigerator door is a storage space; the fixed body comprises a first inner surface which is directly contacted with the storage space and is vertical to the refrigerator door, a second inner surface which is parallel to the refrigerator door, and a third inner surface which is vertical to the refrigerator door and is parallel to the first inner surface; the limiting part comprises a first limiting part fixed on the first inner surface and a second limiting part fixed on the third inner surface, and the plane of the first limiting part and the plane of the second limiting part are perpendicular to the first inner surface, the second inner surface and the third inner surface; the intelligent tray is detachably fixed in the storage space based on the limitation of the limiting part.
The intelligent tray comprises a protective top layer, a pcb board layer, a piezoelectric material layer and a protective bottom layer; the areas of the pcb board layer and the piezoelectric material layer are the same as the area of the protective top layer.
The front surface of the pcb board layer comprises a plurality of round sub-modules, the plurality of sub-modules are adjacent and non-overlapping, and the whole formed by all the sub-modules forms the pcb board layer; the back surface of the pcb board layer comprises a first capacitor, a charge-discharge controller and a first storage battery which are electrically connected in sequence; the front is the pcb sheet with the relative one side of protection top layer, the reverse is the pcb sheet with the relative one side of piezoelectric material layer.
The sub-module comprises a pressure sensor, an led indicator light and a wireless communicator; the pressure sensor is used for detecting pressure exerted on the sub-module and transmitting the pressure to the wireless communicator; the wireless communicator uploads the pressure and the sub-module serial number of the pressure to a cloud server, receives an instruction from the cloud server and forwards the instruction to the led indicator lamp; and the led indicator lamp displays different colors according to the instruction.
And the cloud server generates a three-dimensional characteristic diagram according to the pressure and the corresponding sub-module serial number and the corresponding relation between the pre-stored sub-module serial number and the actual position of the sub-module, wherein the numerical value on the x axis of the three-dimensional characteristic diagram represents the position of the cross axis of the sub-module on the pcb layer, the numerical value on the y axis represents the position of the longitudinal axis of the sub-module on the pcb layer, and the numerical value on the z axis represents the pressure born by the sub-module.
The cloud server further judges the number of local maximum values of the three-dimensional characteristic diagram in the z-axis direction, when the number of the local maximum values is 1, the cloud server judges whether a curved surface graph formed by taking the local maximum values as vertexes and taking points with the z-axis numerical value of 0 or the x and the y-axis numerical value of the maximum or the minimum value as boundaries is a normal distribution-like curved surface or not, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a sequence number set; when the number of the local maximum values is a positive integer larger than 1, the cloud server judges whether each curved surface graph formed by taking one local maximum value as a vertex and taking a z-axis value as 0 or an x-axis value and a y-axis value as the maximum or the minimum value or taking a point between the local maximum value and other local maximum values with the z-axis value as a boundary is a normal distribution curve-like surface, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set to obtain a plurality of serial number sets.
The quasi-normal distribution curved surface is a curved surface of which any section meets the quasi-normal distribution curve.
The similar normal distribution curve has similarity of more than 80% with the standard normal distribution curve.
The actual position is the position of a certain submodule on the pcb board layer relative to other submodules.
The piezoelectric material layer is used for directly converting pressure into electric energy; the first capacitor is directly electrically connected with the piezoelectric material layer and is used for storing electric energy generated by the piezoelectric material layer in real time; the first capacitor is connected with the first storage battery through the charge-discharge controller and used for discharging to the first storage battery based on the control of the charge-discharge controller so as to charge the first storage battery.
The charge and discharge controller detects the soc of the first storage battery in real time, and controls the first capacitor to charge the first storage battery when the soc is reduced to 40%; and when the soc is increased to 95%, the charge and discharge controller controls the first capacitor to stop charging the first storage battery.
Because the temperature of the application environment is low, a high SOC lower limit value needs to be set, and 40% of the SOC lower limit value is a value which can ensure the working requirement and the service life and is determined based on an actual test; meanwhile, in order to reduce the serious reduction of the battery life caused by the high power consumption, 100% cannot be set as an upper limit, and therefore, an upper limit of 95% is set for balancing the service life and the service efficiency.
The first storage battery is connected with the charge and discharge controller through a lead arranged on the reverse side and is used for providing working power of the charge and discharge controller; the first storage battery is electrically connected with the pressure sensor, the led indicator light and the wireless communicator which are arranged in each sub-module respectively through lead wires penetrating through the front surface and the back surface, and further provides power supply for the pressure sensor, the led indicator light and the wireless communicator.
The refrigerator door also comprises a sensor, a timer and an alarm; the sensor can detect whether the refrigerator door is opened or not and whether the refrigerator door is closed or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server; the timer starts to time when the sensor detects that the refrigerator door is opened and is cleared when the refrigerator door is closed; and the alarm gives out red light alarm when the timing result of the timer reaches the preset upper limit.
The first limiting part and the second limiting part are circular arc-shaped bulges.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims (2)

1. A cloud service-based preservation system comprises a common refrigerator, an intelligent tray and a cloud server; the common refrigerator has the functions of freezing and refrigerating; the intelligent tray is placed in the common refrigerator and used for containing articles; the common refrigerator, the intelligent tray and the cloud server are in wireless communication, the cloud server sends an instruction to the intelligent tray based on a communication condition, and the intelligent tray indicates the freshness state of the articles based on the instruction; the communication condition comprises a door opening signal and pressure; the door opening signal is sent by the common refrigerator, and the pressure is sent by the intelligent tray; the refrigerator is characterized by comprising a sensor, wherein the sensor can detect whether a refrigerator door is opened or not, and when the refrigerator door is opened, the sensor sends a door opening signal to the cloud server; the intelligent tray comprises a plurality of sub-modules, and the sub-modules comprise pressure sensors, led indicating lamps and wireless communicators;
the common refrigerator comprises a refrigerator body and a plurality of limiting parts arranged in the refrigerator body, wherein the intelligent tray is matched with the limiting parts for use; the refrigerator body comprises a fixed body and a refrigerator door, and a space defined by the fixed body and the refrigerator door is a storage space; the fixed body comprises a first inner surface which is directly contacted with the storage space and is vertical to the refrigerator door, a second inner surface which is parallel to the refrigerator door, and a third inner surface which is vertical to the refrigerator door and is parallel to the first inner surface; the limiting part comprises a first limiting part fixed on the first inner surface and a second limiting part fixed on the third inner surface, and the plane of the first limiting part and the plane of the second limiting part are perpendicular to the first inner surface, the second inner surface and the third inner surface; the intelligent tray is detachably fixed in the storage space based on the limitation of the limiting part;
the intelligent tray comprises a protective top layer, a pcb board layer, a piezoelectric material layer and a protective bottom layer; the areas of the pcb board layer and the piezoelectric material layer are the same as the area of the protective top layer; the front surface of the pcb board layer comprises a plurality of round sub-modules, the plurality of sub-modules are adjacent and non-overlapping, and the whole formed by all the sub-modules forms the pcb board layer; the back surface of the pcb board layer comprises a first capacitor, a charge-discharge controller and a first storage battery which are electrically connected in sequence; the front surface is the surface of the pcb plate layer opposite to the protective top layer, and the back surface is the surface of the pcb plate layer opposite to the piezoelectric material layer; the sub-module comprises a pressure sensor, an led indicator light and a wireless communicator; the pressure sensor is used for detecting pressure exerted on the sub-module and transmitting the pressure to the wireless communicator; the wireless communicator uploads the pressure and the sub-module serial number of the pressure to a cloud server, receives an instruction from the cloud server and forwards the instruction to the led indicator lamp; the led indicator lamp displays different colors according to the instruction; the cloud server generates a three-dimensional characteristic diagram according to the pressure, the corresponding sub-module serial numbers, the pre-stored sub-module serial numbers and the corresponding actual positions of the sub-modules, wherein the numerical value on the x axis of the three-dimensional characteristic diagram represents the position of the cross axis of the sub-module on the pcb layer, the numerical value on the y axis represents the position of the longitudinal axis of the sub-module on the pcb layer, and the numerical value on the z axis represents the pressure born by the sub-module; the cloud server further judges the number of local maximum values of the three-dimensional characteristic diagram in the z-axis direction, when the number of the local maximum values is 1, the cloud server judges whether a curved surface graph formed by taking the local maximum values as vertexes and taking points with the z-axis numerical value of 0 or the x and the y-axis numerical value of the maximum or the minimum value as boundaries is a normal distribution-like curved surface or not, if so, the placed article is judged to be a natural article, and the server stores the curved surface graph and packs the serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a sequence number set; when the number of the local maximum values is a positive integer larger than 1, the cloud server judges whether each curved surface graph formed by taking one local maximum value as a vertex and taking a z-axis value as 0 or an x-axis value and a y-axis value as the maximum or the minimum value or taking a point between the local maximum value and other local maximum values with the z-axis value as a boundary is a normal distribution curve-like surface or not, if so, the placed article is judged to be a natural article, the server stores the curved surface graph and packs serial numbers of a plurality of sub-modules corresponding to the curved surface graph into a serial number set to obtain a plurality of serial number sets; the quasi-normal distribution curved surface is a curved surface of which any section meets the quasi-normal distribution curve; the quasi-normal distribution curve has the similarity of more than 80% with a standard normal distribution curve; the actual position is the position of a certain submodule on the pcb layer relative to other submodules; the piezoelectric material layer is used for directly converting pressure into electric energy; the first capacitor is directly electrically connected with the piezoelectric material layer and is used for storing electric energy generated by the piezoelectric material layer in real time; the first capacitor is connected with the first storage battery through the charge-discharge controller and used for discharging to the first storage battery based on the control of the charge-discharge controller so as to charge the first storage battery; the charge and discharge controller detects the soc of the first storage battery in real time, and controls the first capacitor to charge the first storage battery when the soc is reduced to 40%; when the soc is increased to 95%, the charge-discharge controller controls the first capacitor to stop charging the first storage battery; the first storage battery is connected with the charge and discharge controller through a lead arranged on the reverse side and is used for providing working power of the charge and discharge controller; the first storage battery is electrically connected with the pressure sensor, the led indicator light and the wireless communicator which are arranged in each sub-module respectively through lead wires penetrating through the front surface and the back surface, and further provides power supply for the pressure sensor, the led indicator light and the wireless communicator.
2. The cloud service-dependent freshness preservation system according to claim 1, wherein the cloud service-dependent freshness preservation system works as follows: (1) placing an article on an intelligent tray, detecting a pressure value by pressure sensors fully distributed in the intelligent tray and transmitting the value to a cloud server;
(2) the cloud server judges whether the articles comprise natural articles or not based on the pressure numerical value, if so, a timer is allocated to each natural article, the serial numbers of the sub-modules corresponding to each natural article are packaged into a serial number set, and the timer starts to time;
(3) when a refrigerator door is opened, a sensor sends door opening information to a cloud server, the cloud server immediately reads a timing result of each timer after receiving the door opening information, when the timing result reaches a first numerical value, the cloud server sends a first instruction to a wireless communicator corresponding to each serial number in a serial number set, when the timing result reaches a second numerical value, the cloud server sends a second instruction to the wireless communicator corresponding to each serial number in the serial number set, and when the timing result reaches a third numerical value, the cloud server sends a third instruction to the wireless communicator corresponding to each serial number in the serial number set;
(4) the wireless communicator forwards the received instruction to the led indicating lamp, the led indicating lamp presents yellow when the instruction is a first instruction, the led indicating lamp presents red when the instruction is a second instruction, and the led indicating lamp presents purple when the instruction is a third instruction.
CN201810366238.4A 2018-04-23 2018-04-23 Cloud service-based preservation system Active CN108592512B (en)

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