CN115063955A - Cold chain platform alarm control system and alarm method - Google Patents
Cold chain platform alarm control system and alarm method Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
The invention provides a cold chain platform alarm control system and a method, which relate to the technical field of communication, and the system comprises: the system comprises a cold chain platform, an alarm, a gateway and an acquisition terminal; the gateway is used for receiving the sensor data forwarded by the acquisition terminal through the first data transmission frequency band and sending the sensor data to the cold chain platform; the cold chain platform is used for sending alarm information to the gateway when the sensor data reaches an alarm threshold value; the gateway is also used for switching the single-channel LoRa module to the alarm frequency band to send the alarm information so that the corresponding alarm executes alarm, and the gateway is also used for switching the single-channel LoRa module back to the first data transmission frequency band after executing alarm. In the system, the data frequency band is divided into the alarm frequency band and the first data transmission frequency band, wireless communication is realized only through a single-channel LoRa module under the condition that the conflict between alarm and sensor data transmission is effectively reduced, the problem of high price of the existing gateway chip is solved, and the effect of reducing the cost is realized.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an alarm control system and an alarm method for a cold chain platform.
Background
An alarm is an electronic device that reminds or warns people of certain actions in the form of sound, light, etc. in order to prevent or prevent the consequences of an event. The method is commonly used in the fields of fire fighting, safety precaution, system early warning, failure and the like. The alarm is controlled in various modes, one mode is that the alarm is integrated with a detection circuit, such as a gas alarm, and when the equipment detects that gas exceeds the standard in real time, the equipment is directly controlled to give an alarm; and a control device for triggering the alarm is separated from the alarm, and the control device and the alarm can be controlled in a wired or wireless mode.
Usually, trigger and control through loRa wireless communication links to each other between alarm device and the alarm device, and this alarm control can the wide application in cold chain platform, like the humiture detection scene of freezer and medicine, the refrigerator at blood station, can in time send out the police dispatch newspaper when temperature, humidity are unusual to reduce the loss of cold chain storage or transportation. The LoRa wireless communication is a long-distance wireless transmission technology based on a spread spectrum technology, and is one of Low-Power Wide-Area Network (LPWAN) communication technologies.
In the current LoRa internet of things communication, a single-channel half-duplex module (SX1278, SX1268, or the like) is adopted for a general terminal, and a special LoRa module (SX1302, or the like) supporting 8 different frequency band parameters is adopted for a gateway. The special gateway LoRa chip is expensive, generally dozens of times as high as the terminal module, that is, the control technology of the existing cold chain platform has the problem of high hardware cost.
Disclosure of Invention
In view of the above, the present invention provides an alarm control system and an alarm method for a cold chain platform, so as to solve the problem of high hardware cost in the existing control technology for the cold chain platform.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a cold chain platform alarm control system, where the system includes: the system comprises a cold chain platform, an alarm, a gateway and an acquisition terminal; the gateway comprises a single-channel LoRa module; the gateway is used for receiving the sensor data forwarded by the acquisition terminal through a first data transmission frequency band and sending the sensor data to the cold chain platform; the cold chain platform is used for comparing the sensor data with a preset alarm threshold value and sending alarm information to the gateway when the sensor data reaches the alarm threshold value; the gateway is further configured to receive the alarm information, switch the single-channel LoRa module to an alarm frequency band, and send the alarm information, so that the corresponding alarm executes alarm; the gateway is further used for switching the single-channel LoRa module back to the first data transmission frequency band so as to receive the sensor data forwarded by the acquisition terminal.
In some possible embodiments, the collection terminal is configured to periodically detect sensor data and send the sensor data to the gateway through the first data transmission band. In some possible embodiments, the gateway further includes a local IP protocol communication module, where the local IP protocol communication module is configured to send the sensor data to the cold-chain platform; the cold chain platform is further used for setting alarm information corresponding to the acquisition terminal and the gateway.
In some possible embodiments, the cold-chain platform is further configured to receive the sensor data forwarded by the gateway, compare the sensor data with a preset alarm limit, and send the alarm information to the gateway when the sensor data reaches an alarm threshold; the gateway is used for receiving the alarm information sent by the cold chain platform and sending the alarm information by switching the single-channel LoRa module to an alarm frequency band; the alarm information comprises an alarm ID; the alarm is used for receiving the alarm information, judging whether the ID of the alarm is matched or not, and executing an alarm action if the ID of the alarm is matched.
In some possible embodiments, the cold chain platform is configured to manage an environmental parameter of a cold chain scene and set an environmental parameter limit of the acquisition terminal; the environmental parameters include: ambient temperature and ambient humidity; the cold chain platform is further used for setting a temperature limit value and a humidity limit value of the acquisition terminal.
In a second aspect, an embodiment of the present invention provides a cold chain platform alarm control method, where the method is applied to any one of the cold chain platform alarm control systems in the first aspect, and the method includes: the gateway receives the sensor data forwarded by the acquisition terminal through a first data transmission frequency band and sends the sensor data to the cold chain platform; the cold chain platform compares the sensor data with a preset alarm threshold value, and sends alarm information to the gateway when the sensor data reaches the alarm threshold value; the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information so that the corresponding alarm can conveniently alarm; above-mentioned gateway switches back above-mentioned first data transmission frequency channel with above-mentioned single channel LoRa module to the sensor data that the above-mentioned collection terminal of receipt forwarded.
In some possible embodiments, the gateway further includes a local IP protocol communication module; the method further comprises the following steps: the acquisition terminal periodically detects sensor data and sends the sensor data to the gateway through the first data transmission frequency band; the local IP protocol communication module sends the sensor data to the cold chain platform;
the step of comparing the sensor data with a preset alarm threshold value by the cold chain platform, and sending alarm information to the gateway when the sensor data reaches the alarm threshold value comprises the following steps: the cold chain platform receives the sensor data forwarded by the gateway and compares the sensor data with a preset alarm limit; and if the sensor data reaches an alarm threshold value, sending the alarm information to the gateway.
In some possible embodiments, the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information, so that the corresponding alarm executes an alarm, including: the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information; the alarm information comprises an alarm ID; and the alarm receives the alarm information, judges whether the IDs of the alarms are matched or not, and executes an alarm action if the IDs of the alarms are matched.
In some possible embodiments, the method further comprises: after receiving the response of the alarm, the gateway reports the result to the cold chain platform, switches the result back to the first data transmission frequency band, and continues to receive the sensor data acquired by the acquisition terminal; and the cold chain platform receives the alarm execution result reported by the gateway, records and displays the alarm execution result.
In a third aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the steps of the method according to any one of the first aspect when executing the computer program.
The invention provides a cold chain platform alarm control system and a method, wherein the system comprises: the system comprises a cold chain platform, an alarm, a gateway and an acquisition terminal; the gateway is used for receiving the sensor data forwarded by the acquisition terminal through the first data transmission frequency band and sending the sensor data to the cold chain platform; the cold chain platform is used for sending alarm information to the gateway when the sensor data reaches an alarm threshold value; the gateway is still used for switching single channel loRa module to the warning frequency channel and sending this alarm information to in the alarm execution warning that corresponds, the gateway still is used for switching single channel loRa module back to first data transmission frequency channel again after the execution warning. In the system, the data frequency band is divided into the alarm frequency band and the first data transmission frequency band, wireless communication is realized only through a single-channel LoRa module under the condition that the conflict between alarm and sensor data transmission is effectively reduced, the problem of high price of the existing gateway chip is solved, and the effect of reducing the cost is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a cold chain platform alarm control system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an alarm control method for a cold chain platform according to an embodiment of the present invention;
fig. 3 is a schematic data transmission diagram of an alarm control method for a cold chain platform according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The LoRa wireless communication is a common communication method, and is generally used for communication between an alarm device separately provided and a control device thereof. Trigger and link to each other through loRa wireless communication between alarm device and the alarm device and control and be applied to the cold chain platform, like the humiture detection scene of freezer and the refrigerator of medicine, blood station. The temperature and humidity acquisition equipment periodically acquires data and transmits the data to the gateway through LoRa, and the gateway transmits the data to the cold chain platform; the alarm only has the alarm function of emitting sound or light, and communicates with the gateway through the LoRa.
LoRa wireless communication work is in exempting from the license frequency channel, like 433MHz, and the application of actual LoRa thing networking divide into the triplex, and terminal, gateway, cold chain platform are connected through the LoRa technique between terminal and the gateway, are connected through the IP agreement between gateway and the cold chain platform.
The temperature and humidity acquisition equipment periodically acquires data and transmits the data to the gateway through LoRa, and the gateway transmits the data to the cold chain platform; the alarm only has the alarm function of emitting sound or light, and communicates with the gateway through the LoRa.
In the current scheme of the cold chain platform based on LoRa internet of things communication, a terminal generally adopts a single-channel half-duplex module (SX1278 or SX1268, etc.), and a gateway adopts a special LoRa module (SX1302, etc.) supporting 8 different frequency band parameters, etc. The special gateway LoRa chip is expensive, generally dozens of times as high as the terminal module, that is, the control technology of the existing cold chain platform has the problem of high hardware cost.
Based on the above, the embodiment of the invention provides an alarm control system and an alarm method for a cold chain platform, so as to solve the problem of high hardware cost in the existing control technology of the cold chain platform.
To facilitate understanding of the embodiment, first, a detailed description is given to a cold chain platform alarm control system disclosed in the embodiment of the present invention, referring to a schematic structural diagram of a cold chain platform alarm control system shown in fig. 1, where the system includes: cold chain platform 110, alarm 120, gateway 130, and collection terminal 140.
The cold chain platform is used for managing the environmental parameters of the cold chain scene, setting the environmental parameter limit value of the acquisition terminal and storing data. The environmental parameters may include: ambient temperature and ambient humidity; the cold chain platform is also used for setting a temperature limit value and a humidity limit value of the acquisition terminal.
Gateway 130 includes a single channel LoRa module; the gateway 130 is configured to receive the sensor data forwarded by the acquisition terminal 140 through the first data transmission frequency band, and send the sensor data to the cold chain platform 110.
In one embodiment, the collection terminal 140 is configured to periodically detect the sensor data and transmit the sensor data to the gateway via the first data transmission frequency band. That is to say, the acquisition terminal detects the sensor data once at intervals, and the detection period can be set according to the specific scene of cold chain transportation or the specific goods actually transported.
As a specific example, when the transported goods are articles with high requirements on environmental parameters, such as medicines, a shorter detection period (such as 30min or 1 h) can be set; when the transported goods are vegetables and other goods with general requirements on environmental parameters, a moderate detection period (such as 5-8h) can be set; when the transported goods are frozen meat and other goods which have low requirements on environmental parameters, a longer detection period (such as 12-18 h) can be set. The detection period is set in a grading way according to the sensitivity of the transported goods to the environmental parameters, so that the environmental parameters can be detected to the maximum extent under the condition of saving energy consumption, and timely adjustment is facilitated.
The cold chain platform 110 is configured to compare the sensor data with a preset alarm threshold, and send alarm information to the gateway when the sensor data reaches the alarm threshold.
The preset alarm threshold may be the lowest or highest value of the environmental parameter, for example, the alarm threshold of the preset temperature is: the maximum is 5 ℃ and the minimum is-20 ℃. When the data of the sensor shows that the temperature is more than-20 ℃ and less than 5 ℃, the temperature is not up to the preset alarm threshold value; when the temperature displayed by the sensor data is less than or equal to-20 ℃ or greater than or equal to 5 ℃, the preset alarm threshold value is reached, and at the moment, the cold chain platform sends alarm information to the gateway.
The gateway 130 is further configured to receive alarm information, and switch the single-channel LoRa module to an alarm frequency band to send the alarm information, so that the corresponding alarm executes alarm; gateway 130 is also used to switch the single channel LoRa module back to the first data transmission frequency band in order to receive the sensor data forwarded by the acquisition terminal.
In one embodiment, the gateway further comprises a local IP protocol communication module for sending the sensor data to the cold chain platform; the cold chain platform is also used for setting alarm information corresponding to the acquisition terminal and the gateway.
In an embodiment, the cold chain platform is further configured to receive sensor data forwarded by the gateway, compare the sensor data with a preset alarm limit, and send alarm information to the gateway when the sensor data reaches an alarm threshold.
Correspondingly, the gateway is used for receiving the alarm information sent by the cold chain platform and sending the alarm information by switching the single-channel LoRa module to the alarm frequency band; the alarm information comprises an alarm ID; the alarm is used for receiving the alarm information and judging whether the IDs of the alarms are matched, and if the IDs of the alarms are matched, the alarm is executed.
The embodiment of the application provides a cold chain platform alarm control system, and this system has and only a single channel loRa module, and gateway and node default all are in the data transmission frequency channel and carry out data transmission, and when the alarm signal of platform was received to the gateway, can switch the data transmission frequency channel to the warning frequency channel, switch back the data transmission frequency channel after having carried out the alarm action. Because the alarm belongs to emergency operation, after the data transmission frequency band is separated from the alarm frequency band, the probability of collision between the emergency such as alarm and the collected reported data of the collecting terminal can be effectively reduced. And this system only realizes wireless communication through single channel loRa module, has solved the problem that current gateway chip is high, has realized reduce cost's effect.
An embodiment of the present invention provides a cold chain platform alarm control method, which is applied to a cold chain platform alarm control system in any one of the above embodiments, and as shown in fig. 2, the method mainly includes the following steps S110 to S140:
s110: the gateway receives the sensor data forwarded by the acquisition terminal through a first data transmission frequency band and sends the sensor data to the cold chain platform;
the gateway also comprises a local IP protocol communication module, and the local IP protocol communication module can realize data transmission between the gateway and the cold chain platform.
S120: the cold chain platform compares the sensor data with a preset alarm threshold value, and sends alarm information to the gateway when the sensor data reaches the alarm threshold value;
s130: the gateway receives alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information so that the corresponding alarm can conveniently alarm;
s140: the gateway switches the single-channel LoRa module back to the first data transmission frequency band so as to receive the sensor data forwarded by the acquisition terminal.
The step S120 includes: firstly, receiving sensor data forwarded by a gateway by a cold chain platform, and then comparing the sensor data with a preset alarm limit; and if the sensor data reaches the alarm threshold value, sending alarm information to the gateway.
Further, the step S130 includes: the gateway receives alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information; the alarm information comprises an alarm ID; and the alarm receives the alarm information, judges whether the IDs of the alarms are matched or not, and executes an alarm action if the IDs of the alarms are matched.
In one embodiment, the method may further include: (1) the method comprises the steps that an acquisition terminal periodically detects sensor data and sends the sensor data to a gateway through a first data transmission frequency band; (2) and the local IP protocol communication module sends the sensor data to the cold chain platform.
In one embodiment, the method may further include: (3) after receiving the response of the alarm, the gateway reports the result to the cold chain platform, switches back to the first data transmission frequency band, and continues to receive the sensor data acquired by the acquisition terminal; (4) and the cold chain platform receives the alarm execution result reported by the gateway, records and displays the alarm execution result.
In one embodiment, for example, the process of triggering an alarm after a certain temperature is exceeded is as follows:
1. after the alarm is powered on, setting a data frequency band as an alarm frequency band, and entering a receiving mode;
2. the method comprises the following steps that a local platform maintainer sets the normal temperature of a relevant temperature acquisition terminal node device to be 2-8 ℃ according to the requirement, and the alarm ID of a gateway corresponding to the node;
3. the terminal node periodically detects surrounding sensor data and transmits the sensor data to the gateway through the LoRa module through a data frequency band;
4. the gateway receives the data of the transmission sensor received by the terminal through the LoRa module, and forwards the data to the local platform through a local IP (without limitation) communication module (UDP, TCP, MQTT and the like);
5. the local platform receives the terminal node sensor data forwarded by the gateway, judges the data according to alarm limits set by a user, and sends an alarm ID to the gateway if the temperature is lower than 2 ℃ or higher than 8 ℃;
6. the gateway receives alarm information sent by a local platform, switches to an alarm frequency band, sends an alarm frame, and waits for the response of an alarm, wherein the content of the alarm is to turn on an alarm and an alarm equipment ID;
7. the alarm receives the alarm frame, judges the ID matching and then executes corresponding actions, and returns the execution result to the gateway;
8. the gateway receives the response of the alarm, reports the result to the platform, switches back to the original data frequency band, and continues to receive the acquired data of the acquisition terminal;
9. and the local platform receives the execution result of the alarm reported by the gateway, records and displays the execution result.
According to the alarm control method for the cold chain platform, the alarm is controlled by adopting the LoRa wireless communication technology, so that the constraint of a line is avoided, and meanwhile, by means of the characteristic of long-distance transmission of the LoRa, compared with the rest 2.4GHz, such as ZIGBEE and the like, the alarm control method has the advantage of distance; and meanwhile, the gateway uses a single-channel LoRa module to realize the implementation, and has obvious cost advantage in the application field of small LPWAN.
As a specific example, an embodiment of the present application provides a cold chain platform alarm control method, and a data transmission schematic diagram of the cold chain platform alarm control method is shown in fig. 3, where a specific flow is as follows:
1. dividing the whole network frequency range into a plurality of channels, totaling N frequency bands, wherein N-1 is a data transmission frequency band, for example, in FIG. 3, a gateway A and acquisition terminals A1 to AN are a data frequency band A, a gateway B and acquisition terminals B1 to BN are a data frequency band B (B is any one of 2-N-1 frequency bands), and AN alarm frequency band is a frequency band N;
2. knowing that 1 to N alarms exist in the area, configuring alarm IDs matched with the gateway A by the platform, wherein the alarm IDs of a plurality of gateways are possibly the same, or each gateway comprises a corresponding alarm;
3. when the platform receives certain data reported by the acquisition terminal, such as a temperature value, and the platform judges that the data exceeds the limit, the alarm needs to be turned on, an instruction is issued to the corresponding gateway, and the instruction content is alarm turn-on or turn-off and the ID of the alarm;
4. the gateway receives the alarm needing to be operated, temporarily switches to an alarm frequency band, sends LoRa data frames and waits for the response of the alarm;
5. after the alarm is powered on, switching to an alarm frequency band, keeping in a long receiving state, detecting whether a data frame is correct and whether the IDs are matched after receiving the LoRa data frame, executing corresponding actions when the data frame is matched, and returning an execution result to the gateway;
6. if the gateway does not receive the response of the alarm within a certain time, retry operation can be executed for a certain number of times, and if the gateway does not receive the response, the gateway also needs to switch back to the original data frequency band to continue working;
7. and after receiving the return of the gateway, the platform displays a corresponding result.
According to the cold chain platform alarm control method provided by the embodiment of the application, the data frequency band is divided into the data frequency band and the alarm frequency band, the alarm information amount and frequency are much lower than those of data, so that 1 alarm frequency band is enough satisfied, meanwhile, the original data transmission is not interfered, only the node data below the gateway can not be received for a short time when the alarm is sent, but the influence on the data transmission can be ignored due to the short time and the low alarm frequency relative to the data transmission frequency; because all the alarms are in the known alarm frequency band of the gateway, a plurality of gateways can share one alarm, the cost is saved to a certain extent, and the complexity of the system is reduced.
The embodiment of the application further provides an electronic device, and specifically, the electronic device comprises a processor and a storage device; the storage means has stored thereon a computer program which, when executed by the processor, performs the method of any of the above described embodiments.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application, where the electronic device 400 includes: a processor 40, a memory 41, a bus 42 and a communication interface 43, wherein the processor 40, the communication interface 43 and the memory 41 are connected through the bus 42; the processor 40 is arranged to execute executable modules, such as computer programs, stored in the memory 41.
The Memory 41 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 43 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like may be used.
The bus 42 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but this does not indicate only one bus or one type of bus.
The memory 41 is used for storing a program, the processor 40 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 40, or implemented by the processor 40.
The processor 40 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 40. The Processor 40 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 41, and the processor 40 reads the information in the memory 41 and completes the steps of the method in combination with the hardware thereof.
Corresponding to the method, the embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores machine executable instructions, and when the computer executable instructions are called and executed by a processor, the computer executable instructions cause the processor to execute the steps of the method.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
It should be noted that: like reference numbers and letters indicate like items in the figures, and thus once an item is defined in a figure, it need not be further defined or explained in subsequent figures, and moreover, the terms "first," "second," "third," etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A cold chain platform alarm control system, comprising: the system comprises a cold chain platform, an alarm, a gateway and an acquisition terminal; the gateway comprises a single-channel LoRa module;
the gateway is used for receiving the sensor data forwarded by the acquisition terminal through a first data transmission frequency band and sending the sensor data to the cold chain platform;
the cold chain platform is used for comparing the sensor data with a preset alarm threshold value and sending alarm information to the gateway when the sensor data reaches the alarm threshold value;
the gateway is further used for receiving the alarm information, switching the single-channel LoRa module to an alarm frequency band and sending the alarm information so that the corresponding alarm can conveniently alarm; the gateway is also used for switching the single-channel LoRa module back to the first data transmission frequency band so as to receive the sensor data forwarded by the acquisition terminal.
2. The system of claim 1, wherein the collection terminal is configured to periodically detect sensor data and send the sensor data to the gateway via the first data transmission band.
3. The system of claim 1, wherein the gateway further comprises a local IP protocol communication module for sending the sensor data to the cold chain platform;
and the cold chain platform is also used for setting a collection terminal and alarm information corresponding to the gateway.
4. The system of claim 3, wherein the cold chain platform is further configured to receive the sensor data forwarded by the gateway, compare the sensor data with a preset alarm limit, and send the alarm information to the gateway when the sensor data reaches an alarm threshold;
the gateway is used for receiving the alarm information sent by the cold chain platform and sending the alarm information by switching the single-channel LoRa module to an alarm frequency band; the alarm information comprises an alarm ID;
the alarm is used for receiving the alarm information, judging whether the IDs of the alarms are matched or not, and executing an alarm action if the IDs of the alarms are matched.
5. The system of claim 1, wherein the cold chain platform is configured to manage environmental parameters of a cold chain scenario and set environmental parameter limits for the acquisition terminal; the environmental parameters include: ambient temperature and ambient humidity; the cold chain platform is also used for setting a temperature limit value and a humidity limit value of the acquisition terminal.
6. A cold chain platform alarm control method is applied to the cold chain platform alarm control system of any one of claims 1 to 5, and the method comprises the following steps:
the gateway receives the sensor data forwarded by the acquisition terminal through a first data transmission frequency band and sends the sensor data to the cold chain platform;
the cold chain platform compares the sensor data with a preset alarm threshold value, and sends alarm information to the gateway when the sensor data reaches the alarm threshold value;
the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information so that the corresponding alarm can conveniently alarm;
the gateway will single channel LoRa module switches back first data transmission frequency channel, so that receive the sensor data that acquisition terminal forwarded.
7. The method of claim 6, wherein the gateway further comprises a local IP protocol communication module; the method further comprises the following steps:
the acquisition terminal periodically detects sensor data and sends the sensor data to the gateway through the first data transmission frequency band;
the local IP protocol communication module sends the sensor data to the cold chain platform; the cold chain platform compares the sensor data with a preset alarm threshold, and when the sensor data reaches the alarm threshold, the step of sending alarm information to the gateway includes:
the cold chain platform receives the sensor data forwarded by the gateway and compares the sensor data with a preset alarm limit;
and if the sensor data reaches an alarm threshold value, sending the alarm information to the gateway.
8. The method according to claim 7, wherein the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information, so that the corresponding alarm performs an alarm, and the method includes the steps of:
the gateway receives the alarm information sent by the cold chain platform, and switches the single-channel LoRa module to an alarm frequency band to send the alarm information; the alarm information comprises an alarm ID;
and the alarm receives the alarm information, judges whether the IDs of the alarms are matched or not, and executes an alarm action if the IDs of the alarms are matched.
9. The method of claim 7, further comprising:
after receiving the response of the alarm, the gateway reports the result to the cold chain platform, switches back to the first data transmission frequency band, and continues to receive the sensor data acquired by the acquisition terminal;
and the cold chain platform receives the alarm execution result reported by the gateway, records and displays the alarm execution result.
10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the method of any of claims 6 to 9 when executing the computer program.
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| CN202210707807.3A CN115063955A (en) | 2022-06-21 | 2022-06-21 | Cold chain platform alarm control system and alarm method |
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| CN202210707807.3A CN115063955A (en) | 2022-06-21 | 2022-06-21 | Cold chain platform alarm control system and alarm method |
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