CN113676492B - Multi-protocol access airport internet of things data forwarding system - Google Patents
Multi-protocol access airport internet of things data forwarding system Download PDFInfo
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Abstract
The invention discloses a multi-protocol access airport internet of things data forwarding system. The forwarding system is internally composed of an uplink data collector, a downlink data collector and an equipment information checker. The equipment is connected to the Internet of things through the unique identifier and respective protocols, data and equipment information acquired by the equipment are transmitted into the system through messages, the equipment information checker checks the data and transmits the data and the equipment information into the uplink message collector, and the equipment information is transferred into a decision layer after validity judgment. And transferring the command issued by the decision layer to a downlink data collector, sending the command to each device according to the judged information after judging the legality, and obtaining the command after the device is successfully verified. The device information checker judges the validity of the device by the device identifier and the data link direction. The system can realize the centralized management of the multi-protocol equipment data and can be better applied to a closed airport environment.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a multi-protocol access data forwarding method and a multi-protocol access data forwarding process applied to an airport environment.
Background
The internet of things is another information technology revolution and industry wave after computers, internet and mobile communication, and is becoming a key foundation and an important engine for green, intelligent and sustainable development of the economic society. The core competitiveness of future manufacturing industry is being shaped by a novel networked intelligent production mode characterized by the integration and innovation of the internet of things, and the application of industries such as industry, electric power and the like is still an important field of the development of the internet of things. From the overall development of the internet of things in recent years, intelligent information processing is still weak. The application of industries such as industry, electric power and the like is becoming more and more complex, and new characteristics appear in the aspects of sensing network scale, infrastructure and the like in the fields, so that the data processing of the internet of things becomes a research hotspot in the deep fusion process of the industry and the internet of things.
With the development of the technology of the internet of things, the internet of things has entered into the aspects of people's life. The internet of things not only influences the life style of people through invisibility in life, but also gives full advantages in various fields. Especially, in an airport internet of things system, the number of access devices is large, the network is complex, and how to enable a decision platform to safely and efficiently communicate with the devices in such a multi-element heterogeneous network environment becomes important.
Disclosure of Invention
The technical problem is as follows: the invention aims to provide a multi-protocol access airport internet of things data forwarding system. The system realizes the rapid classification forwarding of the transmission data by software, and realizes the centralized management of the multi-protocol equipment data; the convenience of multi-protocol and multi-direction data transmission can be improved, and the complicated process and the forwarding speed of multi-protocol data forwarding are effectively improved; the information format issued by the data reporting command is unified, which is beneficial to later management.
The technical scheme is as follows: the invention provides a multiprotocol access airport internet-of-things data forwarding system, which comprises an equipment information checker, an uplink data collector and a downlink data collector, wherein information in the system is transmitted by taking a message with a specified format as a carrier; the device information checker is used for checking the device information in the specified format message and checking the data link direction, the uplink data collector is used for forwarding the device data information upwards, and the downlink data collector is used for forwarding the decision-making layer command; the implementation method comprises the following steps:
step S1: starting;
step S2: accessing the system according to the self-owned access method of the equipment, and backing up the unique identifier of the equipment and the protocol used by the connection mode of the equipment to a storage module in an equipment information checker;
step S3: when the message with the specified format enters the system, a checker in the system is accessed;
step S4, the device checking module checks whether the device information in the message checking area to be checked matches with the device information in the storage module, if yes, step S6 is executed, and if not, step S5 is executed;
step S5: transferring the message to a buffer module for temporary storage;
step S6: the link checking module checks the link direction information of the message checking area;
step S7: writing the checking result into a text area 'proof' object;
step S8: if the link direction of the message checking area is the uplink direction, the uplink data collector performs the access operation, and step S201 is performed, if the link direction is the downlink direction, the downlink data collector performs the access operation, and step S301 is performed, and if none of the link direction is the downlink direction, step S5 is performed.
Wherein the content of the first and second substances,
the stated specified form message, is used for bearing the weight of the firmware information of the apparatus, direction information of the periodic line and order information; the specified format message comprises a check area and a text area, and the contents of the check area and the text area are respectively packaged by a JSON file.
The message checking area comprises two objects of 'proof' and 'payload', wherein the proof is used for storing the unique identifier of the equipment and the information of the link direction; the "payload" is used to store the JSON file name of the text area to locate the text area.
The text area comprises two objects of proof and payload, wherein the proof is used for storing an equipment identifier and a checker checking result; the "payload" stores data or command information.
The equipment information checker is used for verifying the validity of equipment at a data sending or receiving end and comprises a storage module, an equipment checking module, a link checking module and a cache module;
the storage module is used for storing the equipment identifier of the access equipment and the associated information of the protocol corresponding to the equipment identifier;
the device checking module is used for checking whether the device identifier in the incoming system message checking area exists in the storage module;
the link checking module is used for checking whether the link direction transmitted into the system message checking area belongs to one of uplink or downlink directions, and respectively transferring the text area of the information into an uplink data collector or a downlink data collector according to the checking result;
the cache module is used for storing information that the verification of the incoming system is unsuccessful.
The uplink data collector is used for receiving the information which is identified as the uplink data by the equipment information checker, and comprises a confirmation module and a processing module;
the confirmation module is used for confirming the verification result of the equipment information checker in the 'proof' object in the text area and confirming the attribute and the validity of the equipment needing to be processed currently;
and the processing module is used for forwarding the information upwards.
The working process of the uplink data collector is as follows:
step S201: accessing an uplink data collector;
step S202: and a confirmation module in the uplink data checker confirms the check result of the checker and the equipment identifier. If the matching is successful, executing step S204, otherwise executing step S203;
step S203: the checker rechecks the equipment information;
step S204: the processing module forwards the JSON file in the text area of the message to the decision platform upwards;
step S205: a decision platform revenue message;
step S206: and (6) ending.
The downlink data collector is used for receiving the information identified as the downlink data by the equipment information checker, and comprises a confirmation module and a processing module;
the confirmation module is used for confirming the verification result of the equipment information checker in the text area proof object and positioning the equipment to which the downlink information arrives through the equipment identifier;
and the processing module is used for forwarding the information downwards.
The working process of the downlink data collector is as follows:
step S301: accessing a downlink data collector;
step S302: and the confirmation module in the downlink data checker confirms the check result of the checker and the equipment identifier again. If the matching is successful, executing step S304, otherwise executing step S303;
step S303: the checker rechecks the equipment information;
step S304: the processing module locates the corresponding equipment according to the equipment identifier of the message checking area;
step S305: the processing module forwards the text area corresponding to the JSON file;
step S305: and (6) ending.
The working process is as follows:
the confirming module is used for confirming the checking result of the checker in the text area proof object, and if the confirmation fails, the checker checks again;
and after the success of the confirmation, all the text area files are transferred to the decision platform.
The invention provides a downlink data collector existing in a forwarding system, which is characterized in that the collector is used for receiving information which is identified as downlink data by a device information checker. The collector comprises a confirmation module and a processing module.
The confirmation module is used for confirming the verification result of the equipment information checker in the text area proof object and positioning the equipment to which the downlink information arrives through the equipment identifier.
A processing module: for the downward forwarding of information. The working process is as follows:
the confirming module is used for confirming the checker checking result in the text area proof object and positioning the equipment through the equipment identifier;
and after the confirmation is successful, the command of the text area is issued to the specified equipment according to the equipment unique identifier of the inspection area and the corresponding protocol communication mode.
Has the advantages that: according to the method, the data forwarding judgment and data forwarding processes in the multi-protocol existing Internet of things are greatly simplified through the internal definition of the Internet of things forwarding system of the airport place. The rapid classification forwarding of the transmission data is realized through software, so that the unified management of the reported data of the multi-protocol equipment is facilitated, and the management cost is saved; by improving the working flow of equipment verification and combining data direction judgment, the judgment time of multi-equipment multi-direction data transmission is shortened, and the convenience of multi-direction multi-data transmission is improved; through a uniform forwarding system, unique uplink and downlink data forwarding channels of various protocols are saved, and the complicated process and forwarding speed of multi-protocol data forwarding are effectively improved; in the place with fixed data format of the airport, the invention greatly simplifies the data management cost in the later period and is beneficial to the reuse of the data in the later period by unifying the data formats of data reporting and command issuing.
Drawings
FIG. 1 is a schematic diagram of an airport Internet of things installation;
FIG. 2 is a transmit message construct;
FIG. 3 is a process for practicing the present invention;
FIG. 4 is an internal construction diagram of a data forwarding system;
FIG. 5 is a verifier verification process;
FIG. 6 is an upstream data collector work project;
fig. 7 is a downstream data collector collection process.
Detailed Description
The invention discloses a multi-protocol access data forwarding system. The present invention will be described in further detail with reference to the following drawings and examples. The specific examples described herein are intended to be illustrative only and not limiting.
The coexistence of multiple protocols is an important mark for the practicability of the Internet of things, and the simultaneous access of multiple protocols enables the Internet of things to have wider application. In airport environment, different devices have the best access protocol, and the best protocol has the advantages of stability and high efficiency. The forwarding of multi-protocol data by the unified system can reduce the use of instruments and is beneficial to the integration of data. The following are examples of the invention:
fig. 1 is a schematic view of an internet of things provided by an embodiment of the present invention, where the internet of things system includes a decision center, a data forwarding system, and a device. The equipment end shown in fig. 1 is provided with wearable equipment, portable equipment, unpowered equipment, a luggage bucket, navigation light, special vehicles and other equipment suitable for being arranged in airports. Each device has a fixed function and relatively stable reporting attributes. The devices support LoRa, Bluetooth, Wifi, ZigBee and RFID protocols, and each device uses one of the devices to access the Internet of things system. The embodiment where the transmission node is a protocol transmission path does not change the transmission of the protocol in this example. Therefore, a system is formed, wherein the equipment end sends data to the decision center through the data forwarding system, and the decision center issues commands to each equipment through the data forwarding center.
Fig. 2 is a prescribed message format, in the form of an association of two JSON files. The preorder JSON file is a message verification area, and the subsequent JSON file is a message text area. Two objects, namely "proof" and "payload", are specified inside each JSON file. Wherein, the information in the check area "proof object is the device identifier" DeviceID "and the data link Direction"; the information "Nextname" in "payload" is the unique name of the subsequent JSON file. The information in the text area "proof" is the equipment identifier, the link direction and the "Result" written by the checker, and is used for storing the check Result of the checker; "payload" is a text message. FIG. 3 is an example upstream message with "DeviceID" as the device identifier; "Direction" is the data link Direction; "1" represents the upper message data; "Nextname" is the JSON file name that stores the text message; "mainText" is the file name that stores the text JSON file; "energySate" is the equipment power; "Longitude" is the device Longitude; "Latitude" is the device dimension.
Table 1 is a table of data formats in the examples shown:
the packet is encapsulated in a JSON file, an example of which is as follows:
table 2 is a body region JSON file field in the illustrated example, and the field described herein is only used for explaining the present invention, and is not a limitation of the present invention.
The above fields are encapsulated with a JSON file with the file name "2cc167b4d6d24ca4829596edd5f5d60b _1.JSON", an example of which is as follows:
fig. 3 is a flowchart of a method provided in the implementation of the present invention, which is a data forwarding process performed on the basis of the confirmed device accessing the system. The method shown in fig. 1 comprises:
step S1: starting;
step S2: and accessing the system according to the self-owned access method of the equipment. Backing up the unique identifier of the equipment and the protocol used by the connection mode of the equipment to a storage module in an equipment information checker;
step S3: when a specified message format enters a system, a checker in the system accesses;
step S4, the device checking module checks whether the device information in the checking area of the message to be checked matches with the device information in the storage module, if yes, step S6 is executed, and if not, step S5 is executed;
step S5: transferring the message to a buffer module for temporary storage;
step S6: the link checking module checks the link direction information of the message checking area;
step S7: writing the checking result into a text area 'proof' object;
step S8: if the link direction of the message checking area is the uplink direction, the uplink data collector performs the access operation, and step S201 is performed, if the link direction is the downlink direction, the downlink data collector performs the access operation, and step S301 is performed, and if none of the link direction is the downlink direction, step S5 is performed.
The working process of the uplink data collector is as follows:
step S201: access uplink data collector
Step S202: and a confirmation module in the uplink data checker confirms the check result of the checker and the equipment identifier. If the matching is successful, executing step S204, otherwise executing step S203;
step S203: the checker rechecks the equipment information;
step S204: the processing module forwards the JSON file in the text area of the message to the decision platform upwards;
step S205: a decision platform revenue message;
step S206: and (6) ending.
Step S301: accessing a downlink data collector;
step S302: and the confirmation module in the downlink data checker confirms the check result of the checker and the equipment identifier again. If the matching is successful, executing step S304, otherwise executing step S303;
the working process of the downlink data collector is as follows:
step S303: the checker rechecks the equipment information;
step S304: the processing module locates the corresponding equipment according to the equipment identifier of the message checking area;
step S305: the processing module forwards the text area corresponding to the JSON file;
step S305: and (6) ending.
FIG. 4 is a schematic diagram of various modules inside the system: the system platform comprises an equipment information checker, an uplink data collector and a downlink data collector. The equipment information checker is composed of a storage module, an equipment checking module, a link checking module and a cache module. The storage module stores the device identifiers of all the access devices and the access protocols corresponding to the devices, and the storage information is stored in the module when the devices are accessed through a device information bus; the device checking module is used for checking whether the device identifier of the checking area in the device message is matched with the information existing in the storage module; the link check module is used for checking whether the message link is transmitted in an uplink or downlink mode, and is beneficial to the access work of an uplink (downlink) data collector. The buffer module is a message which is not checked by the temporary storage device. The check modules, the cache and the confirmation modules of the uplink (downlink) data collector communicate through an equipment information bus.
The upstream data collector in fig. 4 is used for receiving the information identified as the upstream data by the device information verifier. The collector comprises a confirmation module and a processing module. The confirming module is used for confirming the checking result of the equipment information checker and confirming the attribute and the validity of the current equipment needing to be processed. A processing module: for the forwarding of information upwards. The downlink data collector is used for receiving the information identified as the downlink data by the equipment information checker. The collector comprises a confirmation module and a processing module. The confirming module is used for confirming the checking result of the equipment information checker and positioning the equipment to which the downlink information arrives through the equipment identifier. A processing module: for the downward forwarding of information.
Fig. 5 is a flow chart of the operation of the device information verifier, in this example, "1" represents uplink data, and "2" represents downlink data in the direction link, and the operation of the verifier is as follows:
step 501: start of
Step 502: accessing a checker in the system;
step 503: the equipment checking module checks whether the equipment information in the checking area of the checking message is matched with the equipment information in the storage module, if so, the step 505 is executed, and if not, the step 504 is executed;
step 504: transferring the message to a buffer module for temporary storage;
step 505: the link checking module checks the link direction information of the message checking area, and if the matching is unsuccessful, the step 504 is executed;
step 506: writing the checking result into a text area 'proof' object;
step 507: and if the link direction of the message checking area is the uplink direction, the uplink data collector is accessed to work, and if the link direction is the downlink direction, the downlink data collector is accessed to work.
Step 508: and (6) ending.
Fig. 6 is a schematic diagram of the operation of the upstream data collector after the access operation, in this example, the operation is as follows:
step 601: starting;
step 602: accessing an uplink data collector for work;
step 603: a confirmation module in the uplink data collector confirms whether the result of the link checker in the body region "proof object is true. If the matching is successful, go to step 605, otherwise go to step 604;
step 604: the checker checks the equipment information again;
step 605: the processing module forwards the JSON file in the text area of the message to the decision platform upwards;
step 606: and (6) ending.
Fig. 7 shows the access operation of the downlink data collector:
step 701: starting;
step 702: accessing a downlink data collector for work;
step 703: and a confirmation module in the downlink data collector confirms whether the result of the link checker in the body area proof object is true. If the matching is successful, executing step 705, otherwise executing step 704;
step 704: the checker rechecks the equipment information;
step 705: positioning the equipment according to the equipment identifier, and issuing the JSON file corresponding to the text area to the corresponding equipment by the equipment downlink collector processing module;
step 706: and (6) ending.
Claims (9)
1. A multiprotocol access airport internet of things data forwarding system is characterized by comprising an equipment information checker, an uplink data collector and a downlink data collector, wherein information in the system is transmitted by taking a message with a specified format as a carrier; the device information checker is used for checking the device information in the specified format message and checking the data link direction, the uplink data collector is used for forwarding the device data information upwards, and the downlink data collector is used for forwarding the decision-making layer command; the implementation method comprises the following steps:
step S1: starting;
step S2: accessing the system according to the self-owned access method of the equipment, and backing up the unique identifier of the equipment and the protocol used by the connection mode of the equipment to a storage module in an equipment information checker;
step S3: when the message with the specified format enters the system, a checker in the system is accessed;
step S4, the device checking module checks whether the device information in the message checking area to be checked matches with the device information in the storage module, if yes, step S6 is executed, and if not, step S5 is executed;
step S5: transferring the message to a buffer module for temporary storage;
step S6: the link checking module checks the link direction information of the message checking area;
step S7: writing the checking result into a text area 'proof' object;
step S8: if the link direction of the message checking area is the uplink direction, the uplink data collector performs the access operation, and step S201 is performed, if the link direction is the downlink direction, the downlink data collector performs the access operation, and step S301 is performed, and if none of the link direction is the downlink direction, step S5 is performed.
2. The multi-protocol access airport internet of things data forwarding system of claim 1, wherein said prescribed format message is used to carry equipment firmware information, link direction information and command information; the specified format message comprises a check area and a text area, and the contents of the check area and the text area are respectively packaged by a JSON file.
3. The system of claim 1, wherein the message check area comprises two objects, namely "proof" and "payload", the proof being used for storing the unique identifier of the device and the link direction information; the "payload" is used to store the JSON file name of the text area so as to locate the text area.
4. The system of claim 1, wherein the text area includes two objects, namely "proof" and "payload", wherein the "proof" is used for storing the device identifier and the verifier verification result; the "payload" stores data or command information.
5. The multi-protocol access airport internet-of-things data forwarding system of claim 1, wherein the equipment information checker is used for validity verification of equipment at a data sending or receiving end, and comprises a storage module, an equipment checking module, a link checking module and a cache module;
the storage module is used for storing the equipment identifier of the access equipment and the associated information of the protocol corresponding to the equipment identifier;
the device checking module is used for checking whether the device identifier in the incoming system message checking area exists in the storage module;
the link checking module is used for checking whether the link direction transmitted into the system message checking area belongs to one of uplink or downlink directions, and respectively transferring the text area of the information into an uplink data collector or a downlink data collector according to the checking result;
the cache module is used for storing information that the verification of the incoming system is unsuccessful.
6. The multi-protocol access airport internet of things data forwarding system of claim 1, wherein said upstream data collector is used for receiving information identified as upstream data by the equipment information checker, the upstream data collector comprises an identification module, a processing module;
the confirmation module is used for confirming the verification result of the equipment information checker in the 'proof' object in the text area and confirming the attribute and the legality of the equipment needing to be processed currently;
and the processing module is used for forwarding the information upwards.
7. The multi-protocol access airport internet of things data forwarding system of claim 6 wherein said upstream data collector operates as follows:
step S201: accessing an uplink data collector;
step S202: a confirmation module in the uplink data checker confirms a checker check result and the equipment identifier; if the matching is successful, executing step S204, otherwise executing step S203;
step S203: the checker rechecks the equipment information;
step S204: the processing module forwards the JSON file in the text area of the message to the decision platform upwards;
step S205: a decision platform revenue message;
step S206: and (6) ending.
8. The system according to claim 1, wherein the downlink data collector is configured to receive information identified as downlink data by the device information verifier, and the collector comprises a confirmation module and a processing module;
the confirmation module is used for confirming the verification result of the equipment information verifier in the text area proof object and positioning the equipment to which the downlink information arrives through the equipment identifier;
and the processing module is used for forwarding the information downwards.
9. The system of claim 8, wherein said downstream data collector operates as follows:
step S301: accessing a downlink data collector;
step S302: a confirmation module in the downlink data checker confirms the check result of the checker and the equipment identifier again; if the matching is successful, executing step S304, otherwise executing step S303;
step S303: the checker rechecks the equipment information;
step S304: the processing module locates the corresponding equipment according to the equipment identifier of the message checking area;
step S305: the processing module forwards the JSON file corresponding to the text area;
step S305: and (6) ending.
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