CN113551476A - Cold chain management system - Google Patents
Cold chain management system Download PDFInfo
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- CN113551476A CN113551476A CN202110417064.1A CN202110417064A CN113551476A CN 113551476 A CN113551476 A CN 113551476A CN 202110417064 A CN202110417064 A CN 202110417064A CN 113551476 A CN113551476 A CN 113551476A
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- 238000004891 communication Methods 0.000 claims abstract description 172
- 238000012806 monitoring device Methods 0.000 claims abstract description 90
- 238000003860 storage Methods 0.000 claims abstract description 48
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000005057 refrigeration Methods 0.000 claims abstract description 27
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims description 23
- 230000005856 abnormality Effects 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 29
- 238000000034 method Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
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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
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
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Abstract
The invention provides a cold chain management system, which belongs to the technical field of refrigeration equipment and is characterized by comprising at least one freezer; the freezer monitoring devices corresponding to the freezers are arranged in the freezers; the management server is in communication connection with all the freezer monitoring devices; and at least one management terminal in communication connection with the management server, wherein the freezer monitoring device comprises a positioning part and a monitoring side communication part, the management server comprises a freezer specified area storage part, a retrieval acquisition part, a position abnormity judgment part, a management side signal generation part and a management side communication part, identification information of each freezer and a specified position area of the freezer corresponding to each identification information are stored in the freezer specified area storage part, the positioning part is used for acquiring current position information corresponding to the current position of the corresponding freezer, and the monitoring side communication part sends the current position information and the identification information of the freezer to the management side communication part.
Description
Technical Field
The invention belongs to the technical field of refrigeration equipment, and particularly relates to a cold chain management system.
Background
The freezer is equipment for preserving food and other articles at low temperature, has two kinds of distinction between household and commercial use, and is respectively placed in residences, supermarket stores and other places. The general household freezer and the commercial freezer are no longer monitored after being sold by manufacturing enterprises, and some commercial freezers are only recycled after being rented, and are not checked and the like.
However, the freezer cabinets sold or rented and placed in the shopping malls often have the problems of being moved or intentionally taken away, and the freezer cabinets used in the market have the characteristics of wide distribution range, sporadic distribution, large quantity, multiple models, miscellaneous brands and the like, are high in management cost and low in efficiency, most of the freezer cabinets are ordinary mechanical non-intelligent freezer cabinets, so that the freezer cabinets sold or rented by enterprises are not easy to supervise. At present, a freezer manufacturing enterprise often needs to send a person to perform regular inspection to know the conditions of rented and sold freezers, but the method cannot acquire the state information of the freezers in time, namely cannot acquire the state information in time when a problem occurs, and also needs to consume manpower and material resources.
Disclosure of Invention
In order to solve the problems, the invention provides a cold chain management system, which adopts the following technical scheme:
the invention provides a cold chain management system, which is characterized by comprising at least one freezer cabinet; the freezer monitoring devices corresponding to the freezers are arranged in the freezers; the management server is in communication connection with all the freezer monitoring devices; and at least one management terminal connected to the management server in communication, wherein the freezer monitoring device includes a positioning unit and a monitoring side communication unit, the management server includes a freezer prescribed area storage unit in which identification information of each freezer and a prescribed location area of the freezer corresponding to each identification information are stored, a retrieval acquisition unit for acquiring current location information corresponding to a current location of the corresponding freezer, a management side signal generation unit for transmitting the current location information and the identification information of the freezer to the management side communication unit, and the retrieval acquisition unit retrieves the freezer prescribed area storage unit based on the identification information and acquires the prescribed location area of the freezer corresponding to the identification information upon receipt of the current location information by the management server, the position abnormality determination unit determines whether or not the current position corresponding to the current position information is within the retrieved predetermined position area, and if not, the management-side signal generation unit generates a position abnormality alarm signal and the management-side communication unit transmits the position abnormality alarm signal to the management terminal.
The cold chain management system provided by the invention may further have a feature that the management terminal includes a screen storage unit, a display unit, and a terminal-side communication unit, the screen storage unit stores an alarm screen, the abnormal location alarm signal includes identification information, current location information, and abnormal location alarm prompt information, the management-side communication unit transmits the abnormal location alarm signal to the terminal-side communication unit, and when the management terminal receives the abnormal location alarm signal, the display unit displays the alarm screen and displays information for prompting the abnormal location of the freezer, the identification information, and the current location information on the screen.
The cold chain management system provided by the invention can also have the characteristics that the freezer comprises a refrigeration module, the freezer monitoring device further comprises a temperature sensor, a temperature acquisition part, a temperature threshold value storage part, a temperature abnormity judgment part and a refrigeration control part, the temperature sensor is used for sensing the current temperature in the freezer, the temperature acquisition part generates a current temperature value corresponding to the current temperature in the freezer according to the sensing result of the temperature sensor, the temperature threshold value storage part stores a temperature minimum value and a temperature maximum value, the temperature abnormity judgment part judges whether the current temperature value is smaller than the temperature minimum value, once the judgment result is yes, the refrigeration control part controls the refrigeration module to be closed, a monitoring side signal generates a low-temperature alarm signal at least comprising current coordinates, and the monitoring side communication part sends the low-temperature alarm signal to the management terminal, the temperature abnormity judging part judges whether the current temperature value is larger than the maximum temperature value, once the judgment is yes, the refrigeration control part controls the refrigeration module to be started, the monitoring side signal generates a high-temperature alarm signal at least containing the current coordinate, and the monitoring side communication part sends the high-temperature alarm signal to the management terminal.
The cold chain management system of the present invention may further comprise a screen storage unit in which a temperature threshold setting screen is stored, a display unit which displays the temperature threshold setting screen so that a user can input identification information of the freezer, a maximum temperature value and a minimum temperature value through the input unit, and a terminal-side communication unit which, when the user confirms the input maximum temperature value and the input minimum temperature value, the terminal-side communication unit transmits the identification information, the maximum temperature value, and the minimum temperature value to the management server in association with each other, the management server transmits the maximum temperature value and the minimum temperature value to the monitoring-side communication unit of the freezer monitoring device in the freezer corresponding to the identification information, and the temperature threshold storage unit stores the maximum temperature value and the minimum temperature value when the monitoring-side communication unit receives the maximum temperature value and the minimum temperature value.
The cold chain management system provided by the invention can also have the characteristics that the freezer monitoring device is electrically connected with the freezer and is powered by the freezer, the freezer monitoring device also comprises a battery, the freezer monitoring device also comprises a power-off judgment part, a monitoring side signal generation part and a power supply control part, the power-off judgment part judges whether the freezer monitoring device is electrically communicated with the freezer, once the judgment result is negative, the power supply control part controls the battery to supply power to the freezer monitoring device, the monitoring side signal generation part further generates a power-off alarm signal, the monitoring side communication part sends the power-off alarm signal to the management side communication part, and the management side communication part sends the power-off alarm signal to the management terminal.
The cold chain management system provided by the present invention may further have a feature that the freezer monitoring device further includes a battery power value acquisition section, the management server further includes a battery power threshold value storage section that stores a minimum value of battery power and a power determination section that acquires a current power value corresponding to a current power value of the battery, the monitoring-side communication section transmits the current power value to the management-side communication section, the power determination section determines whether the current power value is smaller than the minimum value of battery power, and if so, the management side signal generating part generates an electric quantity alarm signal, the management side communication part transmits the electric quantity alarm signal to the terminal side communication part, and once the management terminal receives the electric quantity alarm signal, the display part displays an alarm screen and displays an alarm that the electric quantity of the freezer cabinet is too low in the alarm screen.
The cold chain management system provided by the invention can also have the characteristics that the freezer monitoring device further comprises a humidity sensor and a humidity acquisition part, the humidity sensor is used for sensing the current humidity in the freezer, the humidity acquisition part generates a current humidity value corresponding to the current humidity in the freezer according to the sensing result of the humidity sensor, and the monitoring side communication part correspondingly sends the current humidity value and the identification information of the freezer to the management side communication part.
The cold chain management system provided by the invention can also have the characteristic that the freezer monitoring device further comprises a signal intensity acquisition part which is used for acquiring the intensity of the communication signal, and the monitoring side communication part correspondingly transmits the intensity of the communication signal and the identification information of the freezer to the management side communication part.
The cold chain management system provided by the invention can also be characterized in that the freezer monitoring device is in communication connection with the management server through NB-IOT, the positioning part acquires current position information corresponding to the current position of the corresponding freezer every 60s, and the monitoring side communication part transmits the current position information and the identification information of the freezer to the management side communication part.
The cold chain management system provided by the invention can also have the following characteristics that: the cloud terminal is in communication connection with the management server and comprises a freezer information storage part and a cloud side communication part, the management side communication part correspondingly sends identification information, current position information and position abnormity alarm signals corresponding to all freezers to the cloud side communication part, and once the cloud terminal receives the identification information, the current position information and the position abnormity alarm signals, the freezer information storage part correspondingly stores the current position information and the position abnormity alarm signals and the current time.
Action and Effect of the invention
The cold chain management system comprises a freezer, a freezer monitoring device arranged in the freezer, a management server and a management terminal, wherein the freezer monitoring device comprises a positioning part which can acquire the current position information of the freezer, a monitoring side communication part sends the current position information and identification information corresponding to the freezer to the management server, and the management server comprises a freezer specified area storage part, a retrieval acquisition part and a position abnormity judgment part which can judge whether the freezer is in a specified position area or not according to the received current position information and the identification information, and if not, a management side signal generation part generates a position abnormity alarm signal and sends the position abnormity alarm signal to the management terminal. The freezer monitoring device in the cold chain management system can monitor the position of each corresponding freezer, the management server judges the specified position, and when the freezer is judged not to be in the specified area, an alarm signal is sent to the management terminal for further display or operation.
Drawings
FIG. 1 is a schematic diagram of a cold chain management system according to an embodiment of the present invention;
FIG. 2 is a block diagram of the cold chain management system of an embodiment of the present invention;
FIG. 3 is a block diagram of a freezer and a freezer monitoring device according to an embodiment of the invention;
fig. 4 is a block diagram of a management server according to an embodiment of the present invention;
fig. 5 is a block diagram of a management terminal according to an embodiment of the present invention;
FIG. 6 is a diagram of a screen for setting a predetermined area according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a temperature threshold setting screen according to an embodiment of the present invention;
FIG. 8 is a diagram of a status display screen according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an alert screen for a location anomaly alert in accordance with an embodiment of the present invention;
FIG. 10 is a schematic diagram of an alarm screen of a power-off alarm according to an embodiment of the invention;
FIG. 11 is a schematic diagram of an alarm screen of a low temperature power outage alarm according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of an alarm screen for a high temperature alarm in accordance with an embodiment of the present invention;
FIG. 13 is a diagram illustrating an alarm screen for a power alarm according to an embodiment of the present invention;
fig. 14 is a block diagram of a cloud terminal according to an embodiment of the present invention;
fig. 15 is a storage content in the freezer information storage section of the embodiment of the present invention;
FIG. 16 is a workflow diagram a of a cold chain management system of an embodiment of the present invention;
fig. 17 is a flowchart b of the operation of the cold chain management system of an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
< example >
The present embodiments provide a cold chain management system for supervising a freezer.
Fig. 1 is a schematic structural diagram of a cold chain management system according to an embodiment of the present invention, and fig. 2 is a block structural diagram of a cold chain management system according to an embodiment of the present invention.
As shown in fig. 1, the cold chain management system 100 includes a plurality of freezers 1, a freezer monitoring device 2 corresponding to each freezer 1, a management server 3, a plurality of management terminals 4, and a cloud terminal 5.
The freezer monitoring device 2 is in communication connection with the management server 3 through a communication network 6a, the management terminal 4 is in communication connection with the management server 3 through a communication network 6b, and the cloud terminal 5 is in communication connection with the management server 3 through a communication network 6 c.
In the present embodiment, the plurality of cabinets 1 are respectively a cabinet 1a, a cabinet 1b, … …, and a cabinet 1n having different models.
The freezer monitoring device 2a, the freezer monitoring devices 2b and … …, and the freezer monitoring device 2n correspond to the freezers 1a, 1b and … …, and 1n, respectively, are provided in the corresponding freezers 1, and are electrically connected to the freezers 1.
Each freezer 1 has an identification information associated with it.
In this embodiment, the communication network 6a is NB-IOT, that is, the operator base station 61 receives the communication signals of the freezer monitoring devices 2, and then the communication signals are received and transmitted to the management server 3 through the operator NB-IOT service 62.
In this embodiment, the communication network 6b and the communication network 6c are both 5G.
The following description will be given taking the freezer 1a and the freezer monitoring device 2a as examples.
Fig. 3 is a block diagram of a freezer and a freezer monitoring device according to an embodiment of the invention.
As shown in fig. 3, the freezer cabinet 1a includes a refrigeration module 11.
The freezer monitoring device 2a is arranged in the freezer 1a, is electrically connected with the freezer and is powered by the freezer, namely the freezer monitoring device 2a is provided with a power supply circuit connected with a power supply module in the freezer, and the freezer monitoring device 2a is also provided with a battery, namely a battery power supply circuit.
The freezer monitoring device 2a includes a temperature sensor 21 and a humidity sensor 22, and further includes a temperature threshold value storage unit 201, a positioning unit 202, a power failure determination unit 203, a power supply control unit 204, a temperature acquisition unit 205, a temperature abnormality determination unit 206, a refrigeration control unit 207, a humidity acquisition unit 208, a battery power amount acquisition unit 209, a signal strength acquisition unit 210, a monitoring side signal generation unit 211, a monitoring side communication unit 212, and a monitoring side control unit 213.
The monitoring-side communication unit 212 is used for data communication between the respective components of the freezer monitoring device 2a and with the freezer 1a and the management server 3, and the monitoring-side control unit 213 stores a computer program for controlling the operation of the respective components of the freezer monitoring device 2 a.
The temperature threshold value storage unit 201 stores a maximum temperature value and a minimum temperature value. The maximum temperature and the minimum temperature are the maximum temperature and the minimum temperature suitable for storing the articles, which are set according to actual conditions in the freezer 1 a.
The positioning unit 202 is configured to obtain current position information corresponding to a current position of the corresponding freezer 1a, in this embodiment, the current position information is coordinates of the current position of the freezer 1a, and the monitoring-side communication unit 212 sends the current position information and the identification information of the freezer 1a to the management server 3.
The power-off determination section 203 determines whether or not the freezer monitoring device 2a is electrically connected to the freezer 1a, and if not, the power supply control section 204 controls the freezer monitoring device 2a to supply power by switching to the battery, and the monitoring-side signal generation section 211 generates a power-off alarm signal, and the monitoring-side communication section transmits the power-off alarm signal to the management server 3.
The power-off alarm signal comprises identification information, current position information and power-off prompt information corresponding to the freezer 1a, and the power-off prompt information is used for reminding a user of power-off of the freezer monitoring device.
The temperature sensor 21 senses the current temperature in the freezer 1a, and the temperature acquisition unit 205 generates a current temperature value corresponding to the current temperature in the freezer 1a based on the sensing result of the temperature sensor 21.
The temperature abnormality determination unit 206 determines whether or not the current temperature value is smaller than the minimum temperature value, and if so, the refrigeration control unit 207 controls the refrigeration module in the freezer 1a to be turned off, and the monitor-side signal generation unit 211 generates a low-temperature alarm signal.
The low temperature alarm signal includes identification information, current position information, and low temperature prompt information of the freezer 1a, and the low temperature prompt information is information for reminding a user that the temperature in the freezer is too low.
The temperature abnormality determination unit 206 also determines whether the current temperature value is greater than the maximum temperature value, and if so, the refrigeration control unit 207 controls the refrigeration module in the freezer 1a to be turned on, and the monitoring-side signal generation unit 211 generates a high-temperature alarm signal.
The high temperature alarm signal includes identification information of the freezer 1a, current position information, and high temperature prompt information, and the temperature prompt information is information for prompting a user that the temperature in the freezer is too high.
The humidity sensor 22 is configured to sense a current temperature in the freezer 1a, the humidity acquisition unit 208 is configured to generate a current humidity value corresponding to the current humidity in the freezer 1a according to a sensing result of the humidity sensor 22, and the monitoring-side communication unit 212 transmits the current humidity value and the identification information of the freezer 1a to the management server 3 in association with each other.
The battery power acquiring unit 209 acquires a current power value corresponding to the current power of the battery of the freezer monitoring device, and the monitoring-side communication unit 212 transmits the current power value to the management server 3. In this embodiment, the current electric quantity value is a percentage of the current electric quantity of the battery in the battery capacity.
The signal strength acquisition unit 210 is configured to acquire the communication signal strength of the freezer monitoring device 2a, and the monitoring-side communication unit 212 transmits the communication signal strength and the identification information of the freezer 1a to the management server 3 in association with each other.
In this embodiment, each part of the monitoring device 2 starts to operate every time the monitoring device 2 operates for 1 to 2.5ms and sleeps for 60s, that is, every 60s, and if the positioning portion acquires current position information corresponding to the current position of the corresponding freezer 1 every 60s, the monitoring-side communication portion 212 sends the current position information to the management-side communication portion.
Fig. 4 is a block diagram of a management server according to an embodiment of the present invention.
As shown in fig. 4, the management server 3 includes a freezer prescribed area storage unit 31, a power threshold storage unit 32, a search acquisition unit 33, a position abnormality determination unit 34, a power determination unit 35, a management-side signal generation unit 36, a management-side communication unit 37, and a management-side control unit 38.
The management-side communication unit 37 is used for data communication between the components of the management server 3 and with the freezer detection devices 2, the management terminals 4, and the cloud terminal 5, and the management-side control unit 38 stores a computer program for controlling the operations of the components of the management server 3.
The freezer predetermined area storage unit 31 stores identification information for each freezer 1 and a predetermined position area of the freezer 1 corresponding to each identification information.
In the present embodiment, the predetermined position area is a coordinate area with a place such as a mall or a supermarket where each freezer 1 is located.
The electric quantity threshold storage unit 32 stores a minimum value of battery electric quantity, which is 10% of the minimum value of electric quantity percentage in this embodiment.
The monitoring-side communication unit 212 transmits the current position information acquired by the positioning unit 202 of the freezer monitoring device 2a and the identification information of the freezer 1a to the management-side communication unit 37.
When the management-side communication unit 37 receives the current position information and the identification information, the search acquisition unit 33 searches the freezer predetermined area storage unit 31 based on the identification information to acquire a predetermined position area corresponding to the identification information, that is, in the present embodiment, the predetermined position area corresponding to the identification information of the freezer 1 a.
The position abnormality determination unit 34 determines whether or not the current position of the freezer 1a corresponding to the current position information is in the predetermined position area based on the predetermined position area acquired by the search acquisition unit 33 and the received current position information of the freezer 1a, and if it is determined not, the management-side signal generation unit 36 generates a position abnormality alarm signal.
In the present embodiment, the abnormal location alarm signal includes identification information of the freezer 1a, current location information, and abnormal location presentation information for presenting the user that the current location of the freezer is abnormal, and the management-side communication unit 37 transmits the abnormal location alarm signal to the management terminal 4.
The monitoring-side communication unit 212 transmits the current electric quantity value acquired by the battery-quantity acquisition unit 209 of the freezer monitoring device 2a to the management-side communication unit 37.
When the management-side communication unit 37 receives the current electric quantity value, the electric quantity judging unit 35 judges whether or not the current electric quantity value is smaller than the minimum value of the battery electric quantity, and if so, the management-side signal generating unit 36 generates one electric quantity warning signal.
In this embodiment, the electric quantity alarm signal includes identification information of the freezer 1a, current position information, a current electric quantity value, and an electric quantity over-low prompt message, the electric quantity over-low prompt message is information for prompting a user that the electric quantity at a current point of the freezer monitoring device is over-low, and the management-side communication portion 37 sends the electric quantity alarm signal to the management terminal 4.
In this embodiment, the management terminal 4 includes a management terminal 4a and a management terminal 4b … …, where the management terminal 4a is a computer, the management terminal 4b is a smartphone, and the management terminal 4a is taken as an example for description below.
Fig. 5 is a block diagram of a management terminal according to an embodiment of the present invention.
As shown in fig. 5, the management terminal 4a includes a screen storage unit 41, an input unit 42, a display unit 43, a terminal-side communication unit 44, and a terminal-side control unit 45.
The terminal-side communication unit 44 manages data communication between the respective components of the terminal 4 and with the management server 3, and the terminal-side control unit 45 stores a computer program for controlling operations of the respective components of the management terminal 4.
The screen storage unit 41 stores a predetermined area setting screen 411, a temperature threshold setting screen 412, a status display screen 413, and an alarm screen 414.
In this embodiment, the input unit 42 is a keyboard and a mouse, and the display unit 43 is a display screen.
In this embodiment, the user can set the predetermined position area of each freezer by using the management terminal 4 a.
Specifically, the display unit 43 of the management terminal 4a displays the predetermined area setting screen 411.
Fig. 6 is a schematic diagram of a predetermined area setting screen according to an embodiment of the present invention.
The predetermined area setting screen 411 includes an identification information input area 411a, a predetermined area input area 411b, and a confirmation button 411 c.
The user inputs the identification information corresponding to the desired freezer 1 to be set in the identification information input area 411a through the input unit 42, i.e., the number LDG001 of the freezer 1a in the present embodiment, and inputs the desired position area to be set in the predetermined area input area 411b, i.e., two position coordinates are input as the diagonal points of a rectangular area, i.e., the inputted desired position area, and after the input is completed, the user presses the confirmation button 411c, i.e., the input of the desired position area is completed.
When the user completes the input and confirms it, the terminal-side communication unit 44 transmits the identification information and the predetermined position area input by the user to the management-side communication unit 37.
When the management-side communication unit 37 receives the identification information and the predetermined position area, the freezer predetermined area storage unit 31 stores the identification information and the predetermined position area in association with each other.
In this embodiment, the user can also set the temperature threshold of each freezer through the management terminal 4 a.
Specifically, the management terminal 4a display unit 43 displays the temperature threshold setting screen 412.
Fig. 7 is a schematic diagram of a temperature threshold setting screen according to an embodiment of the present invention.
As shown in fig. 7, the temperature threshold setting screen 412 includes an identification information input area 412a, a temperature minimum value input area 412b, a temperature maximum value input area 412c, and a confirmation button 412 d.
The user inputs identification information corresponding to the desired freezer 1 to be set, i.e., identification information of the freezer 1a in the present embodiment, in the identification information input area 411a through the input unit 42. The user inputs the minimum temperature value to be set in the minimum temperature value input region 412b and the maximum temperature value to be set in the maximum temperature value input region 412c through the input unit 42, and after the input is completed, the user presses the confirm button 412d, thereby completing the input of the temperature threshold value.
In this embodiment, the identification information of the freezer 1a is an identification code LDG 001.
When the user completes the input and confirms it, the terminal-side communication unit 44 transmits the identification information, the temperature minimum value, and the temperature maximum value input by the user to the management-side communication unit 37 as temperature threshold information.
Upon receiving the temperature threshold value information, the management-side communication unit 37 transmits the maximum temperature value and the minimum temperature value to the monitoring-side communication unit 212 of the freezer monitoring device 2 of the freezer 1 corresponding to the identification information, that is, the monitoring-side communication unit 212 of the freezer monitoring device 2a in the present embodiment, based on the received identification information.
When the monitoring side communication unit 212 receives the minimum temperature value and the maximum temperature value, the temperature threshold value storage unit 201 stores the temperature minimum value and the temperature maximum value.
The management-side communication unit 37 continuously transmits the received identification information, current position information, current temperature value, current humidity value, and communication signal strength of each freezer 1 to the terminal-side communication unit 44.
FIG. 8 is a diagram of a status display screen according to an embodiment of the present invention.
The display unit 43 displays a status display screen 413, and as shown in fig. 8, the status display screen 413 includes a plurality of freezer status display areas 413a and freezer search areas 413b, and the information monitored by the freezer monitoring device 2 corresponding to each freezer 1, that is, the identification information, the current position information, the current temperature value, the current humidity value, and the communication signal intensity received by the management terminal 4a are displayed in each of the plurality of freezer status display areas 413 a.
In this embodiment, for example, if the identification information of the freezer 1a is LDG001, the current location information is (40 ° N,112 ° E), the current temperature value is 2 ℃, the current humidity value is 50%, and the communication signal strength is-75 dBm, then one of the freezer state display areas 413a displays "the current location of the freezer LDG 001:
(40 ° N,112 ° E) current temperature value: 2 ℃ Current humidity value: 50% communication signal strength: -75dBm ".
If the user can also input and confirm the freezer identification information in the freezer search area 413b through the input unit 42, the state display screen 413 displays only the freezer state display area 413a corresponding to the freezer 1 corresponding to the input identification information.
When the management server 3 determines that the current position corresponding to the current position information of the freezer 1a monitored by the freezer monitoring device 2a is not within the predetermined position range, the management-side communication unit 37 transmits a position abnormality alarm signal to the terminal-side communication unit 44.
When the terminal-side communication unit 44 receives the position abnormality alarm signal transmitted from the management-side communication unit 37, the display unit 43 of the management terminal 4a automatically displays the alarm screen 414.
Fig. 9 is a schematic diagram of an alarm screen of a location anomaly alarm according to an embodiment of the present invention.
As shown in fig. 9, the warning screen 414 includes a presentation information display area 414a, an identification information display area 414b, a current information display area 414c, and a return button 414 d.
In the prompt information display area 414a, "warning: the freezer position is abnormal ", and" freezer: LDG001 ″, the current position information of the freezer 1a is displayed in the current information display area 414 c. When the user presses the return button 414d, the display unit 43 displays the status display screen 413 again.
When the freezer monitoring device 2a determines that the freezer monitoring device 2a is not electrically connected to the freezer 1a, the management communication unit 37 transmits the received power-off alarm signal to the terminal-side communication unit 44.
When the terminal-side communication unit 44 receives the power-off alarm signal transmitted from the management-side communication unit 37, the display unit 43 of the management terminal 4a automatically displays the alarm screen 414.
Fig. 10 is a schematic diagram of an alarm screen of a power-off alarm according to an embodiment of the present invention.
As shown in fig. 10, a "warning: the freezer is powered off and switched to battery power, and "freezer: LDG001 ″, the current position information is displayed in the current information display area 414 c. When the user presses the return button 414d, the display unit 43 displays the status display screen 413 again.
When the freezer monitoring device 2a determines that the current temperature value in the freezer 1a is less than the minimum temperature value, the management communication unit 37 transmits the received low temperature alarm signal to the terminal-side communication unit 44.
When the terminal-side communication unit 44 receives the low temperature alarm signal transmitted from the management-side communication unit 37, the display unit 43 of the management terminal 4a automatically displays the alarm screen 414.
FIG. 11 is a diagram illustrating an alarm screen of a low temperature power outage alarm according to an embodiment of the present invention.
As shown in fig. 11, a "warning: the freezer temperature is too low ", and" freezer: LDG001 ″, the current position information of the freezer 1a and the current temperature value are displayed in the current information display area 414 c. When the user presses the return button 414d, the display unit 43 displays the status display screen 413 again.
When the freezer monitoring device 2a determines that the current temperature value in the freezer 1a is greater than the maximum temperature value, the management communication unit 37 transmits the received high temperature alarm signal to the terminal-side communication unit 44.
When the terminal-side communication unit 44 receives the high-temperature alarm signal transmitted from the management-side communication unit 37, the display unit 43 of the management terminal 4a automatically displays the alarm screen 414.
FIG. 12 is a diagram illustrating an alarm screen of a high temperature alarm according to an embodiment of the present invention.
As shown in fig. 12, a "warning: the freezer temperature is too high ", and" freezer: LDG001 ″, the current position information of the freezer 1a and the current temperature value are displayed in the current information display area 414 c. When the user presses the return button 414d, the display unit 43 displays the status display screen 413 again.
When the management server 3 determines that the received current power value of the freezer monitoring device 2a is smaller than the power minimum value, the management-side communication unit 37 transmits a power alarm signal to the terminal-side communication unit 44.
When the terminal-side communication unit 44 receives the power alarm signal, the display unit 43 of the management terminal 4a automatically displays the alarm screen 414.
Fig. 13 is a diagram illustrating an alarm screen of a power alarm according to an embodiment of the invention.
As shown in fig. 13, a "warning: the freezer monitoring device has too low a power level and "freezer: LDG001 ″, the current position information of the freezer monitoring device 2a and the current electric quantity value are displayed in the current information display area 414 c. When the user presses the return button 414d, the display unit 43 displays the status display screen 413 again.
Fig. 14 is a block diagram of a cloud terminal according to an embodiment of the present invention.
As shown in fig. 14, the cloud terminal 5 includes a freezer information storage unit 51, a cloud-side communication unit 52, and a cloud-side control unit 53.
The cloud-side communication unit 52 is used for data communication between the respective components of the cloud terminal 5 and with the management server 3, and the cloud-side control unit 53 stores a computer program for controlling the operation of the respective components of the cloud terminal 5.
Fig. 15 shows the contents stored in the freezer information storage unit according to the embodiment of the present invention.
The management-side communication unit 37 correspondingly transmits the identification information, the current position information, the current temperature value, the current humidity value, the communication signal strength, the abnormal position alarm signal, the power failure alarm signal, the low temperature alarm signal, the high temperature alarm signal, and the low power alarm signal to the cloud-side communication unit 52 as freezer status information, and as shown in fig. 15, the freezer information storage unit 51 correspondingly stores the received identification information, the current position information, the current temperature value, the current humidity value, the communication signal strength, the abnormal position alarm signal, the power failure alarm signal, the low temperature alarm signal, the high temperature alarm signal, and the low power alarm signal with the current time.
In the present embodiment, the management-side communication unit 37 transmits the freezer status information to the cloud-side communication unit 52 every 30 minutes.
Fig. 16 is a flowchart a of the operation of the cold chain management system of an embodiment of the present invention.
The following describes the workflow of the location determination part of the cold chain management system 100 in this embodiment with reference to fig. 16, which specifically includes the following steps:
step S1, the positioning unit 202 continuously acquires the current position information corresponding to the current position of the corresponding freezer 1a, and then proceeds to step S2;
step S2, the monitoring-side communication unit 212 transmits the current position information and the identification information of the corresponding freezer 1a to the management-side communication unit 37, and then the process proceeds to step S3;
step S3, the search acquiring unit 33 searches the freezer prescribed area storage unit 31 based on the received identification information to acquire the prescribed location area of the freezer 1a corresponding to the identification information, and then the process proceeds to step S4;
in step S4, the position abnormality determination unit 34 determines whether or not the current position of the freezer 1a corresponding to the received current position information is within the retrieved predetermined position area, and if so, the routine again proceeds to step S1, and if not, the routine proceeds to step S5;
in step S5, the management-side signal generator 36 generates a position abnormality warning signal, and then proceeds to step S6;
in step S6, the management-side communication unit 37 transmits the position abnormality warning signal to the terminal-side communication unit 44, and the process proceeds to step S7;
in step S7, the display unit 43 of the management terminal 4a displays an alarm screen, and displays the identification information of the freezer 1a, the current position information, and the abnormal position alarm presentation information on the screen, and then enters the end state.
Fig. 17 is a flowchart b of the operation of the cold chain management system of an embodiment of the present invention.
The following describes the operation flow of the temperature control part of the freezer 1a of the cold chain management system 100 in this embodiment with reference to fig. 17, specifically including the following steps:
step T1, the temperature sensor 21 of the freezer monitoring device 2a senses the current temperature in the freezer 1a, the temperature obtaining part 205 generates the current temperature value according to the sensing result of the temperature sensor, and then the process goes to step T2;
in step T2, the temperature abnormality determination section 206 determines whether or not the current temperature value is smaller than the minimum temperature value, and if not, the routine proceeds to step T6, and if yes, the routine proceeds to step T3;
step T3, the refrigeration control section 207 controls the refrigeration module 11 of the freezer 1a to be turned off, and at the same time, the monitor-side signal generating section 211 generates a low-temperature alarm signal, and then the process goes to step T4;
a step T4 in which the monitoring-side communication unit 212 transmits the low-temperature alarm signal to the management-side communication unit 37, the management-side communication unit 37 transmits the low-temperature alarm signal to the terminal-side communication unit 44, and the process proceeds to a step T5;
step T5, the display unit 43 of the management terminal 4a displays an alarm screen, displays the identification information of the freezer 1a, the current position information, the current temperature value, and the low temperature alarm indication information on the screen, and enters an end state;
in step T6, the temperature abnormality determination 206 determines whether the current temperature value is greater than the maximum temperature value, and if not, the process again proceeds to step T1, and if yes, the process proceeds to step T7;
step T7, the refrigeration control section controls the refrigeration module 11 of the freezer 1a to be turned on, and at the same time, the monitor side signal generating section 211 generates a high temperature alarm signal, and then the process goes to step T8;
a step T8 in which the monitoring-side communication unit 212 transmits the high-temperature alarm signal to the management-side communication unit 37, the management-side communication unit 37 transmits the high-temperature alarm signal to the terminal-side communication unit 44, and the process proceeds to a step T9;
in step T9, the display unit 43 of the management terminal 4a displays an alarm screen, and displays the identification information of the freezer 1a, the current position information, the current temperature value, and the high temperature alarm notification information on the screen, and then enters the end state.
In this embodiment, the freezer monitoring device 2a can also monitor and display the communication signal intensity, whether the power is off, the current electric quantity value and the current humidity value of the freezer at the management terminal 4 a.
Examples effects and effects
The cold chain management system provided by the embodiment comprises a freezer, a freezer monitoring device arranged in the freezer, a management server and a management terminal, wherein the freezer monitoring device comprises a positioning part which can acquire current position information of the freezer, a monitoring side communication part sends the current position information and identification information corresponding to the freezer to the management server, the management server comprises a freezer specified area storage part, a retrieval acquisition part and a position abnormity judgment part, whether the freezer is in a specified position area can be judged according to the received current position information and the received identification information, and if the judgment result is no, a management side signal generation part generates a position abnormity alarm signal and sends the position abnormity alarm signal to the management terminal. The freezer monitoring device in the cold chain management system of this embodiment can monitor the position of each corresponding freezer, and the management server carries out the judgement of regulation position again, when judging that there is the freezing event in not in the regulation region, then send alarm signal to the management terminal and carry out further demonstration or operation, the cold chain management system of this embodiment can carry out real-time supervision to all freezers of selling or hiring promptly, prevent someone from shifting out the freezer in the regulation region, and can in time carry out the feedback, remind the user the position of freezer unusual so that the user carries out further inspection.
Further, the management terminal in the cold chain management system provided by the embodiment includes a display part and a picture storage part, the abnormal position alarm signal transmitted to the management terminal by the management server includes identification information of the freezer, current position information and abnormal position alarm prompt information, when the management terminal receives the abnormal position alarm signal, the information included by the signal can be automatically displayed, the user is timely reminded of the abnormal position of the freezer and told which freezer the user is and the current position of the user, and the user can conveniently check the refrigerator in time.
Further, the freezer among the cold chain management system that this embodiment provided includes the refrigeration module, freezer monitoring devices still includes temperature sensor, the temperature acquisition portion, temperature threshold value storage portion, unusual judgement portion of temperature and refrigeration control portion, the cold chain management system of this embodiment can also monitor the temperature of freezer promptly, and when the current temperature value that detects surpassed the scope, the refrigeration module of control freezer is opened or is closed, realize the automatically regulated of temperature, and further send alarm signal to the management server, the management server further sends to the management terminal again, remind the user to carry out further operation.
Further, the maximum temperature value and the minimum temperature value in the temperature threshold storage unit in the freezer monitoring device in the cold chain management system provided in this embodiment can be set by the management terminal, thereby further expanding the application range of the cold chain management system of this embodiment.
Further, freezer monitoring devices among the cold chain management system that this embodiment provided is connected with the freezer electricity and is supplied power by the freezer, freezer monitoring devices is connected with the supply circuit electricity of freezer promptly, and freezer monitoring devices has battery and outage judgement portion, when outage judgement portion judges freezer monitoring devices outage, can switch to the battery power supply, and send outage alarm signal and give management server, management server sends outage alarm signal again and gives management terminal, remind user's freezer monitoring devices outage, remind user's freezer to probably take place to outage or freezer monitoring devices to break down promptly, need in time inspect.
Further, the freezer monitoring device in the cold chain management system provided by this embodiment can also monitor the electric quantity and the communication signal intensity of the freezer monitoring device and send to the management server, that is, more state information can be monitored and processed.
Further, the freezer monitoring device in the cold chain management system provided by this embodiment can also monitor the humidity of the freezer and send the humidity information to the management server for monitoring.
Further, the freezer monitoring device of the cold chain management system provided by the embodiment works at intervals of 60s, and the working power can be saved.
Further, the cold chain management system of the embodiment further comprises a cloud terminal, and the cloud terminal can receive the state information of the freezer cabinet transmitted by the management server and correspondingly store the state information with the current time, namely, a database of the state information of the freezer cabinet can be established, so that further analysis and processing are facilitated, and a better working mode is established.
The above-described embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above-described embodiments.
In the above embodiment, when the management terminal receives the abnormal position alarm signal, the power failure alarm signal, the low temperature alarm signal, and the high temperature alarm signal, the alarm screen is displayed on the display unit and the prompt information is displayed on the screen.
In the above embodiments, the freezer monitoring device is electrically connected to the internal power supply module of the freezer and is powered by the freezer, and the freezer monitoring device further has a battery, which can be switched from the freezer power supply to the battery power supply.
Claims (10)
1. A cold chain management system, comprising:
at least one freezer cabinet;
the freezer monitoring devices correspond to the freezers and are arranged in the freezers;
the management server is in communication connection with all the freezer monitoring devices; and
at least one management terminal in communication connection with the management server,
wherein the freezer monitoring device comprises a positioning part and a monitoring side communication part,
the management server comprises a freezer prescribed area storage unit, a search acquisition unit, a position abnormality determination unit, a management-side signal generation unit, and a management-side communication unit,
the freezer prescribed area storage section stores identification information for each freezer and a prescribed location area of the freezer corresponding to each identification information,
the positioning part is used for acquiring current position information corresponding to the current position of the corresponding freezer,
the monitoring-side communication unit transmits the current position information and the identification information of the freezer to the management-side communication unit,
the retrieval acquiring unit retrieves the predetermined location area of the freezer from the identification information and acquires the predetermined location area of the freezer corresponding to the identification information, when the management server receives the current location information,
the management-side signal generating unit generates a position abnormality warning signal if the current position corresponding to the current position information is within the retrieved predetermined position area and if not,
the management-side communication unit transmits the position abnormality alarm signal to the management terminal.
2. The cold chain management system of claim 1, wherein:
wherein the management terminal comprises a picture storage part, a display part and a terminal side communication part,
the picture storage part stores an alarm picture,
the position abnormality warning signal includes the identification information, the current position information, and the position abnormality warning prompt information,
the management-side communication unit transmits the position abnormality alarm signal to the terminal-side communication unit,
when the management terminal receives the abnormal position alarm signal, the display part displays the alarm picture and displays information for prompting the abnormal position of the freezer, the identification information and the current position information in the picture.
3. The cold chain management system of claim 1, wherein:
wherein the freezer cabinet comprises a refrigeration module,
the freezer monitoring device also comprises a temperature sensor, a temperature acquisition part, a temperature threshold value storage part, a temperature abnormity judgment part and a refrigeration control part,
the temperature sensor is used for sensing the current temperature in the freezer,
the temperature acquisition part generates a current temperature value corresponding to the current temperature in the freezer cabinet according to the sensing result of the temperature sensor,
the temperature threshold value storage part stores a temperature minimum value and a temperature maximum value,
the temperature abnormity judging part judges whether the current temperature value is smaller than the temperature minimum value, once the judgment is yes, the refrigeration control part controls the refrigeration module to be closed, and further the monitoring side signal generates a low-temperature alarm signal at least comprising the current coordinate,
the monitoring side communication section transmits the low temperature alarm signal to the management terminal,
the temperature abnormity judging part judges whether the current temperature value is larger than the maximum temperature value, once the judgment is yes, the refrigeration control part controls the refrigeration module to be started, and further the monitoring side signal generates a high-temperature alarm signal at least comprising the current coordinate,
the monitoring side communication part sends the high temperature alarm signal to the management terminal.
4. The cold chain management system of claim 3, wherein:
wherein the management terminal comprises a picture storage part, a display part, an input part and a terminal side communication part,
the picture storage part stores a temperature threshold setting picture,
the display unit displays the temperature threshold setting screen to allow the user to input the identification information of the freezer, the maximum temperature value, and the minimum temperature value through the input unit,
the terminal-side communication unit transmits the identification information, the maximum temperature value, and the minimum temperature value to the management server in association with each other when the user confirms the input maximum temperature value and minimum temperature value,
the management server transmits the maximum temperature value and the minimum temperature value to the monitoring-side communication unit of the freezer monitoring device in the freezer corresponding to the identification information,
the temperature threshold value storage unit stores the temperature maximum value and the temperature minimum value when the monitoring-side communication unit receives the temperature maximum value and the temperature minimum value.
5. The cold chain management system of claim 1, wherein:
wherein the freezer monitoring device is electrically connected with the freezer and is powered by the freezer, and the freezer monitoring device is also provided with a battery,
the freezer monitoring device also comprises a power failure judgment part, a monitoring side signal generation part and a power supply control part,
the power-off judging part judges whether the freezer monitoring device is electrically connected with the freezer, once the power-off judging part judges that the freezer monitoring device is not electrically connected with the freezer, the power supply control part controls the battery to supply power to the freezer monitoring device, and further the monitoring side signal generating part generates a power-off alarm signal,
the monitoring side communication part transmits the power-off alarm signal to the management side communication part,
and the management side communication part transmits the power failure alarm signal to a management terminal.
6. The cold chain management system of claim 5, wherein:
wherein the freezer monitoring device further comprises a battery electric quantity value acquisition part,
the management server further includes a battery power threshold storage section and a power determination section,
the battery charge threshold storage section stores a battery charge minimum value,
the battery electric quantity value acquisition part acquires a current electric quantity value corresponding to the current electric quantity of the battery,
the monitoring side communication part transmits the current electric quantity value to the management side communication part,
the electric quantity judging part judges whether the current electric quantity value is smaller than the minimum value of the electric quantity of the battery, once the judgment is yes, the management side signal generating part generates an electric quantity alarm signal,
the management-side communication section transmits the electric quantity warning signal to the terminal-side communication section,
when the management terminal receives the electric quantity alarm signal, the display part displays an alarm picture and displays an alarm of low electric quantity of the freezer in the alarm picture.
7. The cold chain management system of claim 1, wherein:
wherein, the freezer monitoring device also comprises a humidity sensor and a humidity acquisition part,
the humidity sensor is used for sensing the current humidity in the freezer,
the humidity acquisition part generates a current humidity value corresponding to the current humidity in the freezer cabinet according to the sensing result of the humidity sensor,
the monitoring-side communication unit transmits the current humidity value and the identification information of the freezer cabinet to the management-side communication unit in association with each other.
8. The cold chain management system of claim 1, wherein:
wherein the freezer monitoring device further comprises a signal intensity acquisition part,
the signal strength acquisition part is used for acquiring the communication signal strength,
the monitoring-side communication unit transmits the communication signal intensity and the identification information of the freezer cabinet to the management-side communication unit in association with each other.
9. The cold chain management system of claim 1, wherein:
wherein the freezer monitoring device is in communication connection with the management server through NB-IOT,
the positioning part acquires current position information corresponding to the current position of the corresponding freezer every 60s,
the monitoring-side communication unit transmits the current position information and the identification information of the freezer to the management-side communication unit.
10. The cold chain management system of claim 1, further comprising:
the cloud terminal is in communication connection with the management server and comprises a freezer information storage part and a cloud side communication part,
the management-side communication unit transmits the identification information, the current location information, and the abnormal location alarm signal corresponding to each of the freezers to the cloud-side communication unit,
when the cloud terminal receives the identification information, the current position information, and the abnormal position alarm signal, the freezer information storage unit stores the current position information and the abnormal position alarm signal in association with a current time.
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| CN202110417064.1A CN113551476A (en) | 2021-04-19 | 2021-04-19 | Cold chain management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110417064.1A CN113551476A (en) | 2021-04-19 | 2021-04-19 | Cold chain management system |
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| CN113551476A true CN113551476A (en) | 2021-10-26 |
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| CN117146522A (en) * | 2023-10-31 | 2023-12-01 | 山东爱德信商用厨具有限公司 | Remote management control system and method for refrigerator |
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