CN115767500A - Gateway coding system based on identification resolving capability - Google Patents
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Abstract
The invention relates to the technical field of identification analysis, and discloses a gateway code assigning system based on identification analysis capability, which comprises a gateway, a local server, a manufacturer query server, a data center, a user side, an identification registration shutdown mechanism and a plurality of wireless sensor nodes, wherein the gateway is respectively connected with the local server and the plurality of wireless sensor nodes, and the local server is connected with the manufacturer query server, the data center, the user side and the identification registration shutdown mechanism through a network; the gateway coding system based on the identification resolving capability distributes the identity identifiers for the wireless sensor nodes, realizes mutual mapping of the identity identifiers of the wireless sensor nodes and communication addresses of the wireless sensor nodes in the WSN, and realizes tracing and management of application attributes of the wireless sensor nodes.
Description
Technical Field
The invention relates to the technical field of identification analysis, in particular to a gateway code assigning system based on identification analysis capability.
Background
The rapid development and the gradual maturity of the wireless sensor network technology accelerate the social development process, improve the life quality of people, and enable the information exchange and application fields to be wider and deeper.
However, the current technologies such as wireless sensor network architecture and routing protocol all adopt a "data-centric" design method, but the application range and scale of wireless sensor networks are increasingly expanded, for example, in typical fields such as home networks, smart industry, and smart grid, etc., which exposes the limitation of the data-centric design concept of wireless sensor networks. The node identifier can uniquely identify the wireless sensor node in the Internet at a high level, a large range, and at present, identification analysis at home and abroad is mainly carried out aiming at the code of the radio frequency identification technology. In the aspect of wireless sensor network identifier analysis, a globally unified and open identifier analysis standard does not exist at home and abroad at present, and research on an identifier analysis method of each wireless sensor node in a wireless sensor network is still in a blank stage. Therefore, the wireless sensor network urgently needs to introduce a system for extracting information from the wireless sensor nodes at any time and managing the identification in real time by analyzing the identifier.
Disclosure of Invention
The invention provides a gateway coding system based on identification resolving capability, which allocates an identity identifier for a wireless sensor node, realizes mutual mapping of the identity identifier of the wireless sensor node and a communication address of the wireless sensor node in a WSN (wireless sensor network), and realizes tracing and management of application attributes of the wireless sensor node.
The invention provides a gateway code assigning system based on identification resolving capability, which comprises a gateway, a local server, a manufacturer query server, a data center, a user side, an identification registration shutdown mechanism and a plurality of wireless sensor nodes, wherein the gateway is respectively connected with the local server and the plurality of wireless sensor nodes, and the local server is connected with the manufacturer query server, the data center, the user side and the identification registration shutdown mechanism through a network;
the local server is used for storing the identity identifier, the application attribute identifier and the analyzed detailed application attribute information of the wireless sensor node; the manufacturer query server is used for storing detailed information of the wireless sensor node before leaving a factory; the data center is used for storing detailed application attributes of all wireless sensor nodes and real-time data information of the wireless sensor nodes; the identification registration management mechanism is used for verifying the registration and the validity of the wireless sensor node identification identifier and verifying the identity of a user accessing the system; the gateway is used for establishing a mapping relation between the wireless sensor node identity identifier and an in-network communication address, and managing the whole wireless sensor network identifier.
Further, the gateway comprises a core controller, a wireless module, a serial interface, a first voltage conversion chip, a JTAC interface, a network card chip, an RJ45 network interface, an RAM memory, a Flash memory, a reset circuit, a clock circuit, a second voltage conversion chip and a DC stabilized power supply interface, wherein the core controller is respectively connected with the wireless module, the first voltage conversion chip, the JTAC interface, the network card chip, the RAM memory, the Flash memory, the reset circuit, the clock circuit and the second voltage conversion chip, the wireless module is further connected with a first antenna, the first voltage conversion chip is further connected with the serial interface, the network card chip is further connected with the RJ45 network interface, and the second voltage conversion chip is further connected with the wireless module and the DC stabilized power supply interface.
Furthermore, each wireless sensor node comprises a power supply, a power supply management part, a sensor acquisition part and a wireless transmission part, wherein the power supply management part is respectively connected with the power supply, the sensor acquisition part and the wireless transmission part; the sensor acquisition part comprises a sensor, a scheduling circuit and an analog-to-digital (A/D) conversion circuit, the wireless transmission part comprises a radio frequency circuit and a radio frequency chip, the power management part is respectively connected with the sensor and the radio frequency chip, the sensor is connected with the scheduling circuit, the scheduling circuit is connected with the A/D conversion circuit, the A/D conversion circuit is connected with the radio frequency chip, the radio frequency chip is further connected with the radio frequency circuit, and the radio frequency circuit is further connected with a second antenna.
Furthermore, after the wireless sensor node accesses the network, the local server sends an identification analysis request command, and the gateway receives the identification analysis request command and then sends the identification analysis request command out in a broadcast mode in a wireless mode; after the wireless sensor node confirms the command, the wireless sensor node identity identifier is mapped to a communication source address SAD in the wireless sensor node network, and then a data sequence consisting of the communication source address in the wireless sensor node network and the wireless sensor node application attribute identifier is sent to the gateway in a wireless mode.
Further, after receiving a data sequence sent by the wireless sensor node, the gateway firstly maps the source address of the wireless sensor node into the identity identifier of the wireless sensor node according to a set mapping rule, then checks whether the identity identifier meets the coding rule, and transmits the identity identifier to a local server if the identity identifier meets the coding rule; if not, it is discarded.
Further, the length of the identity identifier of each wireless sensor node is 120bits, and the length of the in-network source address of each wireless sensor node in the wireless sensor network is 64 bits; the rule for mapping between the wireless sensor node identity identifier ISN and the internal source address SAD thereof is as follows:
wherein Z is 1 () represents the mapping rule mapped by SAD to ISN,
indicating the mapping rule from ISN to SAD.
Further, after receiving the wireless sensor node identifier from the gateway, the local server establishes a mapping relationship between the wireless sensor node identifier and the local server database directory LSD, so that a user or a data center can access corresponding information of the wireless sensor node with corresponding access right.
Further, each of the wireless sensor node identity identifiers may correspond to one or more local server database directories; the mapping mode of the wireless sensor node identity identifier to the local server database directories LSD is as follows:
wherein Z is 2 () represents the mapping rule from the ISN to the LSDs,
indicating the mapping rules from LSD to ISN.
Further, the identification analysis main comprises OID analysis and DNS analysis, the local server obtains a Uniform Resource Locator (URL) of a manufacturer query server of the corresponding wireless sensor node through the OID analysis, sends a domain name analysis request to the DNS domain name analysis system through the obtained URL, obtains an IP address of the manufacturer query server of the corresponding wireless sensor node, and can access the manufacturer query server through the IP address so as to query detailed application attributes of the wireless sensor node.
Further, the wireless sensor node identity identifiers comprise version numbers, prefixes, manufacturer codes and product codes, wireless sensors produced by the same manufacturer have the same manufacturer code segments, and the wireless sensor node identity identifiers with the same manufacturer code segments are mapped to the URLs of the query server of the same manufacturer;
the mapping relation between the wireless sensor node identity identifier and the URL of the manufacturer query server is as follows:
wherein Z is 3 Denotes the mapping rules from multiple ISNs to URLs,
indicating the mapping rules from URL to ISN.
The invention has the beneficial effects that:
firstly, tracing back to a wireless sensor node through the address mapping effect of a gateway; then, performing object identification analysis and domain name service on the wireless sensor node identity identifier ISN, and analyzing to obtain detailed application attribute information of the wireless sensor node; and finally, storing the acquired detailed application attribute information of the wireless sensor node into a local server database for information query and application management of a user or a data center. The method comprises the steps of establishing a mutual mapping relation between an identity identifier of a wireless sensor node and a communication address of the wireless sensor node in the WSN, finishing the tracing and management of the application attribute of the wireless sensor node, storing the application attribute into a local server database for user query, and conveniently extracting information and managing the identification of the wireless sensor node in real time at any time.
Drawings
Fig. 1 is a schematic structural diagram of a gateway coding system based on an identifier resolution capability according to the present invention.
Fig. 2 is a schematic diagram of a gateway hardware structure in the present invention.
Fig. 3 is a schematic diagram of a wireless sensor node hardware structure according to the present invention.
Fig. 4 is a flow chart of a wireless sensor node according to the present invention.
Fig. 5 is a flowchart of the gateway establishing address mapping in the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The identifier of the wireless sensor node (sensing node) includes an identity identifier and an application property identifier. The identity identifier is used for uniquely and unambiguously identifying the identity of the wireless sensor node on a global scale, and can provide information for network application and management. The application attribute identifier is used for describing the application attribute of the wireless sensor node and is determined by a manufacturer according to related national standards. The identity identifier is optional, and the application attribute identifier is optional. In a wireless sensor network, a wireless sensor node identifier is used to uniquely identify a wireless sensor node in the network such that the identified wireless sensor node has a determined identity in the wireless sensor network.
As shown in fig. 1, the present invention provides a gateway code assigning system based on identifier resolution capability, including a gateway, a local server, a manufacturer query server, a data center, a user side, an identifier registration shutdown mechanism, and a plurality of wireless sensor nodes, where the gateway is connected to the local server and the plurality of wireless sensor nodes, respectively, and the local server is connected to the manufacturer query server, the data center, the user side, and the identifier registration shutdown mechanism through a network;
the local server, the user, the manufacturer inquiry server, the data center and the identification registration management mechanism are communicated with each other through the Internet. The local server is used for storing the identity identifier, the application attribute identifier and the analyzed detailed application attribute information of the wireless sensor node; the manufacturer inquiry server is used for storing detailed information of the wireless sensor nodes before leaving a factory; the data center is used for storing detailed application attributes of all wireless sensor nodes and real-time data information of the wireless sensor nodes; the identification registration management mechanism is used for verifying the registration and the validity of the wireless sensor node identity identifier and verifying the identity of a user accessing the system; the gateway is used for establishing a mapping relation between the wireless sensor node identity identifier and an in-network communication address, and managing the whole wireless sensor network identifier.
Firstly, tracing back to a wireless sensor node through the address mapping effect of a gateway; then, carrying out Object Identifier (Object Identifier) analysis and Domain Name service (Domain Name Server) analysis on an identity Identifier ISN (Identifier of Sensor Node) of the wireless Sensor Node to obtain detailed application attribute information of the wireless Sensor Node; and finally, storing the acquired detailed application attribute information of the wireless sensor node into a local server database for information query and application management of a user or a data center.
As shown in fig. 2, the gateway includes a core controller, a wireless module, a serial interface, a first voltage conversion chip, a JTAC interface, a network card chip, an RJ45 network interface, an RAM memory, a Flash memory, a reset circuit, a clock circuit, a second voltage conversion chip, and a dc regulated power supply interface, where the core controller is connected to the wireless module, the first voltage conversion chip, the JTAC interface, the network card chip, the RAM memory, the Flash memory, the reset circuit, the clock circuit, and the second voltage conversion chip, the wireless module is further connected to a first antenna, the first voltage conversion chip is further connected to the serial interface, the network card chip is further connected to the RJ45 network interface, and the second voltage conversion chip is further connected to the wireless module and the dc regulated power supply interface. The wireless sensor network identification analysis establishes mapping between the wireless sensor node identity identifier and the communication address in the node network through the gateway address mapping relation, and the wireless sensor node is traced and managed by the gateway through the management of the wireless sensor network. The front end data receiving controller is mainly used as a coordinator of the WSN to receive information from the wireless sensor nodes, the front end of the core controller is mainly connected and communicated with the data receiving controller, the rear end of the core controller is connected to the Internet to communicate with a remote upper computer, and important functions such as resource management, address mapping and the like are completed at the same time. The whole gateway is powered by a 220V-to-5V direct current stabilized voltage power supply, and the interface part is provided with an RS-232 serial port and an Ethernet port respectively, so that the gateway can transmit information to an upper computer in multiple modes.
As shown in fig. 3, each wireless sensor node includes a power supply, a power supply management part, a sensor acquisition part, and a wireless transmission part, where the power supply management part is connected to the power supply, the sensor acquisition part, and the wireless transmission part, respectively; the sensor acquisition part comprises a sensor, a scheduling circuit and an analog-to-digital (A/D) conversion circuit, the wireless transmission part comprises a radio frequency circuit and a radio frequency chip, the power management part is respectively connected with the sensor and the radio frequency chip, the sensor is connected with the scheduling circuit, the scheduling circuit is connected with the A/D conversion circuit, the A/D conversion circuit is connected with the radio frequency chip, the radio frequency chip is further connected with the radio frequency circuit, and the radio frequency circuit is further connected with a second antenna. In the design of the hardware structure of the wireless sensor node, the wireless transmission part is used as the core of the whole wireless sensor node, and the performance and the service life of the whole wireless sensor node are determined. In the invention, a CC2430 radio frequency chip is selected, and the chip integrates a ZigBee radio frequency front end, a memory and a microcontroller. The chip is selected as the processor chip, so that not only is the power consumption reduced, and the transmitting power and the receiving sensitivity are improved, but also the design of the whole framework is simpler and easier, and the development cost is greatly reduced.
As shown in fig. 4, after the wireless sensor node accesses the network, the local server sends an identifier resolution request command, and the gateway receives the identifier resolution request command and then sends the identifier resolution request command in a broadcast manner in a wireless manner; after the wireless sensor node confirms the command, the wireless sensor node identity identifier is mapped to a communication Source ADdress SAD (Source Address) in the wireless sensor node network, and then a data sequence consisting of the communication Source ADdress in the wireless sensor node network and the wireless sensor node application attribute identifier is sent to the gateway in a wireless mode.
As shown in fig. 5, after receiving a data sequence sent by a wireless sensor node, the gateway maps a source address of the wireless sensor node to an identity identifier of the wireless sensor node according to a set mapping rule, then checks whether the identity identifier meets an encoding rule, and if so, transmits the identity identifier to a local server; if not, it is discarded.
The length of the identity identifier of each wireless sensor node is 120bits, and the length of the in-network source address of each wireless sensor node in the wireless sensor network is 64 bits; the rule for mapping between the wireless sensor node identity identifier ISN and the internal source address SAD thereof is as follows:
wherein Z is 1 () represents the mapping rule mapped by SAD to ISN,
indicating the mapping rule from ISN to SAD.
The wireless sensor node identity identifier and the source address in the network are mutually mapped, and the mapping rule from the identity identifier to the source address in the network is that the code segment of a manufacturer of the identity identifier plus the code segment of a product is the source address in the network; in contrast, the mapping rule of the in-network source address to the identity identifier is that the in-network source address plus version number code segment and the prefix code segment are the identity identifier of the wireless sensor node.
After receiving the wireless sensor node identifier from the gateway, the local server establishes a mapping relation between the wireless sensor node identity identifier and a local server database directory (LSD) so that a user or a data center can access corresponding information of the wireless sensor node with corresponding access authority.
In establishing a mapping of wireless sensor node identifiers to local server database directories, each of the wireless sensor node identifiers may correspond to one or more local server database directories; the mapping mode of the wireless sensor node identity identifier to the local server database directories LSD is as follows:
wherein Z is 2 () represents the mapping rule from the ISN to the LSDs,
representing the mapping rules from LSD to ISN.
The wireless sensor node application attribute identifier is composed of a node descriptor and a signal interface descriptor, the signal interface descriptor comprises a descriptor type, a descriptor length, a signal interface number and signal interface descriptor data, and different sensors on the same wireless sensor node can be identified through the descriptor type and the signal interface number. Therefore, the mapping rule from the wireless sensor node identity identifier to the local server database directory is that the wireless sensor node application attribute identifier descriptor type code segment and the signal interface number code segment and the wireless sensor node identity identifier jointly form the local server database directory of the wireless sensor node; on the contrary, the mapping rule from the local server database directory to the wireless sensor node identity identifier is that the first 120bits of the local server database directory is the wireless sensor node identity identifier.
The identification analysis main comprises OID analysis and DNS analysis, the local server obtains a Uniform Resource Locator (URL) of a manufacturer query server of the corresponding wireless sensor node through the OID analysis, sends a domain name analysis request to a DNS domain name analysis system through the obtained URL, obtains an IP address of the manufacturer query server of the corresponding wireless sensor node, can access the manufacturer query server through the IP address, and further queries the detailed application attribute of the wireless sensor node.
When performing OID resolution, a large number of wireless sensor nodes may be from the same manufacturer, and thus, a plurality of wireless sensor node ids may correspond to the same URL at the same time. Determining a mapping relationship between the wireless sensor node identity identifier and a URL of a manufacturer query server as follows:
wherein Z is 3 () represents the mapping rules from multiple ISNs to URLs,
indicating the mapping rules from URL to ISN.
The wireless sensor node identity identifiers comprise version numbers, prefixes, manufacturer codes and product codes, wireless sensors produced by the same manufacturer have the same manufacturer code segments, and the wireless sensor node identity identifiers with the same manufacturer code segments are mapped to URLs of query servers of the same manufacturer; finally, the system and the cloud computing form a large platform which is interconnected, provides mass data and completes application service, the collected wireless sensor node information is stored in the service platform, and the mass data are analyzed through a data mining technology, so that the change rule of the mass data is obtained.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, apparatus, article, or method comprising the element.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A gateway code assigning system based on identification resolving capability is characterized by comprising a gateway, a local server, a manufacturer inquiry server, a data center, a user side, an identification registration shutdown mechanism and a plurality of wireless sensor nodes, wherein the gateway is respectively connected with the local server and the plurality of wireless sensor nodes, and the local server is connected with the manufacturer inquiry server, the data center, the user side and the identification registration shutdown mechanism through a network;
the local server is used for storing the identity identifier, the application attribute identifier and the analyzed detailed application attribute information of the wireless sensor node; the manufacturer query server is used for storing detailed information of the wireless sensor node before leaving a factory; the data center is used for storing detailed application attributes of all wireless sensor nodes and real-time data information of the wireless sensor nodes; the identification registration management mechanism is used for verifying the registration and the validity of the wireless sensor node identification identifier and verifying the identity of a user accessing the system; the gateway is used for establishing a mapping relation between the wireless sensor node identity identifier and an in-network communication address, and managing the whole wireless sensor network identifier.
2. The gateway coding system according to claim 1, wherein the gateway includes a core controller, a wireless module, a serial interface, a first voltage conversion chip, a JTAC interface, a network card chip, an RJ45 network interface, an RAM memory, a Flash memory, a reset circuit, a clock circuit, a second voltage conversion chip, and a dc regulated power supply interface, the core controller is connected to the wireless module, the first voltage conversion chip, the JTAC interface, the network card chip, the RAM memory, the Flash memory, the reset circuit, the clock circuit, and the second voltage conversion chip, the wireless module is further connected to a first antenna, the first voltage conversion chip is further connected to the serial interface, the network card chip is further connected to the RJ45 network interface, and the second voltage conversion chip is further connected to the wireless module and the dc regulated power supply interface.
3. The gateway coding system based on the identification resolving capability of claim 1, wherein each wireless sensor node comprises a power supply, a power supply management part, a sensor acquisition part and a wireless transmission part, and the power supply management part is respectively connected with the power supply, the sensor acquisition part and the wireless transmission part; the sensor acquisition part comprises a sensor, a scheduling circuit and an A/D conversion circuit, the wireless transmission part comprises a radio frequency circuit and a radio frequency chip, the power management part is respectively connected with the sensor and the radio frequency chip, the sensor is connected with the scheduling circuit, the scheduling circuit is connected with the A/D conversion circuit, the A/D conversion circuit is connected with the radio frequency chip, the radio frequency chip is further connected with the radio frequency circuit, and the radio frequency circuit is further connected with a second antenna.
4. The gateway coding system based on the identifier resolution capability of claim 1, wherein after the wireless sensor node accesses the network, the local server sends an identifier resolution request command, and the gateway receives the identifier resolution request command and then sends the identifier resolution request command in a broadcast manner in a wireless manner; after the wireless sensor node confirms the command, the wireless sensor node identity identifier is mapped to a communication source address SAD in the wireless sensor node network, and then a data sequence consisting of the communication source address in the wireless sensor node network and the wireless sensor node application attribute identifier is sent to the gateway in a wireless mode.
5. The gateway coding system based on the identity resolution capability of claim 4, wherein after receiving the data sequence sent by the wireless sensor node, the gateway maps the source address of the wireless sensor node into the identity identifier of the wireless sensor node according to a set mapping rule, then checks whether the identity identifier meets the coding rule, and if so, transmits the identity identifier to a local server; if not, it is discarded.
6. The gateway coding system based on identity resolution capability of claim 5, wherein the identity identifier of each wireless sensor node has a length of 120bits, and the in-network source address of each wireless sensor node in the wireless sensor network has a length of 64 bits; the rule of mapping between the wireless sensor node identity identifier ISN and the internal source address SAD is as follows:
wherein Z is 1 (·) denotes the mapping rule mapped by SAD to ISN,
indicating the mapping rule from ISN to SAD.
7. The gateway coding system based on identity resolution capability of claim 6, wherein after receiving the wireless sensor node identifier from the gateway, the local server establishes a mapping relationship between the wireless sensor node identifier and a local server database directory (LSD) so that a user or a data center can access corresponding information of the wireless sensor node with corresponding access right.
8. The identity resolution capability-based gateway tagging system of claim 7, wherein each said wireless sensor node identity identifier may correspond to one or more local server database directories; the mapping mode of the wireless sensor node identity identifiers to the local server database directories LSDs is as follows:
wherein Z is 2 () represents the mapping rule from the ISN to the LSDs,
indicating the mapping rules from LSD to ISN.
9. The gateway coding system based on the identification resolving capability of claim 8, wherein the identification resolving main comprises OID resolving and DNS resolving, the local server obtains a uniform resource locator URL of a manufacturer query server of a corresponding wireless sensor node through the OID resolving, sends a domain name resolution request to the DNS domain name resolution system from the obtained URL, obtains an IP address of the manufacturer query server of the corresponding wireless sensor node, and can access the manufacturer query server through the IP address to further query detailed application attributes of the wireless sensor node.
10. The gateway coding system based on the identity resolution capability of claim 9, wherein the wireless sensor node identifiers comprise version numbers, prefixes, manufacturer codes and product codes, wireless sensors produced by the same manufacturer have the same manufacturer code segment, and the wireless sensor node identifiers having the same manufacturer code segment are mapped to URLs of the same manufacturer query server;
the mapping relation between the wireless sensor node identity identifier and the URL of the manufacturer query server is as follows:
wherein, Z 3 () represents the mapping rules from multiple ISNs to URLs,
indicating the mapping rules from URL to ISN.
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