WO2018232967A1 - 一种基于接入节点的物联网终端设备检测方法及系统 - Google Patents

一种基于接入节点的物联网终端设备检测方法及系统 Download PDF

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Publication number
WO2018232967A1
WO2018232967A1 PCT/CN2017/098503 CN2017098503W WO2018232967A1 WO 2018232967 A1 WO2018232967 A1 WO 2018232967A1 CN 2017098503 W CN2017098503 W CN 2017098503W WO 2018232967 A1 WO2018232967 A1 WO 2018232967A1
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Prior art keywords
terminal device
access node
terminal devices
target terminal
offline
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PCT/CN2017/098503
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English (en)
French (fr)
Inventor
杜光东
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深圳市盛路物联通讯技术有限公司
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Publication of WO2018232967A1 publication Critical patent/WO2018232967A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/04—Processing captured monitoring data, e.g. for logfile generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present invention relates to the field of Internet of Things technologies, and in particular, to a method and system for detecting an Internet of Things terminal device based on an access node.
  • the Internet of Things is the Internet connected to the Internet. It is a network that extends and expands on the Internet.
  • the user terminal extends and extends between any item and item, enabling information exchange and communication.
  • the Internet of Things connects any item to the Internet through terminal devices such as radio frequency identification devices, infrared sensing devices, laser scanners, gas sensors, etc., to realize a network that intelligently identifies, locates, tracks, monitors and manages.
  • the terminal device can operate independently and with strict requirements on the number of terminal devices in a specified area, and the reliability of the data information collected by the terminal device is ensured by the quantity.
  • the working status of the terminal device is affected by many factors, including hardware failure, power supply failure, and environmental weather. It cannot guarantee that all terminal devices in the specified area can upload data normally, and thus cannot ensure uploading. Data information can accurately reflect the real situation and affect the reliability of data information.
  • the embodiment of the invention discloses a method and a system for detecting an Internet of Things terminal device based on an access node, which are used for detecting an Internet of Things terminal device, ensuring the number of online terminal devices, and improving the reliability of data information in the Internet of Things.
  • the first aspect of the present invention discloses a method for detecting an Internet of Things terminal device based on an access node, which may include:
  • the access node periodically broadcasts a listening message in the designated area, and receives a response message of the terminal device located in the designated area to the listening message;
  • the access node determines, according to the offline terminal device determined by itself and the offline terminal device indicated by the result of the interception feedback, all the offline terminal devices in the specified area as the target terminal device;
  • the access node determines whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the number
  • the preset offline quantity is described, the n value and the IP address of the target terminal device of each period are encapsulated into a data packet and sent to the aggregation unit; wherein the n is a positive integer;
  • the aggregation unit performs an early warning according to the data packet.
  • the access node determines, according to the response message, an online terminal device that responds to the interception message in the specified area, and Obtaining, according to the terminal device and the online terminal device in the specified area, the offline terminal device that does not respond to the listening message in the specified area, including:
  • the access node determines, according to the activated terminal device and the online terminal device, an activated terminal device that does not respond to the interception message in the designated area, as the offline terminal device.
  • the method when the access node periodically broadcasts a listening message in a specified area, the method further includes:
  • the access node When the access node periodically broadcasts a listening message in a specified area, the access node invokes a clock interface, and sends a clock acquisition request for requesting a real-time clock to the clock server through the clock interface;
  • the access node determines whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the number
  • the preset offline quantity is described, the n value and the IP address of the target terminal device of each period are encapsulated into a data packet and sent to the aggregation unit, including:
  • the access node determines whether the number of the target terminal devices reaches a preset offline quantity, when the When the number of the target terminal devices reaches the preset number of offline devices, and the number of target terminal devices of the n consecutive cycles reaches the preset offline number, the n value, the IP address of the target terminal device per cycle,
  • the real-time clock information corresponding to each cycle is encapsulated into a data packet and sent to the aggregation unit.
  • the sending, by the aggregation unit, according to the data packet includes:
  • the aggregation unit invokes a weather interface, and sends a weather query request to the weather server through the weather interface, where the weather query request is used to request the weather server to query the real-time clock information including the specified area and each period.
  • Weather information ;
  • the aggregation unit performs an early warning according to the data packet and the real-time weather information corresponding to each period.
  • the method when the access node periodically broadcasts a listening message in a specified area, the method further includes:
  • the access node When the access node periodically broadcasts the interception message in the designated area, the access node invokes an instant weather interface, and sends, by using the instant weather interface, the weather server to obtain the weather of the real-time weather information corresponding to the designated area. Get the request;
  • the access node determines whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the number
  • the preset offline quantity is described, the n value and the IP address of the target terminal device of each period are encapsulated into a data packet and sent to the aggregation unit, including:
  • the access node determines whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the number
  • the preset offline quantity is described, the n value, the IP address of the target terminal device of each period, and the real-time weather information acquired in each period are encapsulated into a data packet and sent to the aggregation unit.
  • the second aspect of the present invention discloses an IoT terminal device detection system based on an access node, which may include:
  • An access node configured to periodically broadcast a listening message in a specified area, and receive a response message of the terminal device located in the specified area to the listening message;
  • the access node is further configured to: determine, according to the response message, an online terminal device that responds to the interception message in the specified area, and according to all terminal devices and devices in the designated area The online terminal device obtains an offline terminal device that does not respond to the interception message in the designated area;
  • the access node is further configured to acquire a listening feedback result sent by another access node in the specified area, where the interception feedback result includes offline in the specified area determined by the other access node
  • the network protocol IP address of the terminal device
  • the access node is further configured to determine, according to the offline terminal device determined by the offline terminal device and the offline terminal device indicated by the interception feedback result, all the offline terminal devices in the specified area, as the target terminal device;
  • the access node is further configured to: determine whether the number of the target terminal devices reaches a preset offline quantity, when the number of the target terminal devices reaches the preset offline quantity, and the target terminal devices of the continuous n cycles When the number reaches the preset offline quantity, the n value and the IP address of the target terminal device of each period are encapsulated into a data packet and sent to the aggregation unit; wherein the n is a positive integer;
  • the aggregation unit is configured to perform an early warning according to the data packet.
  • the access node is further configured to determine, according to the response message, an online terminal that responds to the interception message in the specified area.
  • the device, and the method for obtaining the offline terminal device in the specified area that does not respond to the interception message according to the terminal device and the online terminal device in the specified area are specifically:
  • the access node is further configured to: determine, according to the response message, an online terminal device that responds to the response message in the specified area; and use the sending unit to send the specified area according to the a status information table of the activated terminal device, determining all activated terminal devices in the specified area; determining, according to the activated terminal device and the online terminal device, that the specified area is not The activated terminal device that responds to the message responds as the offline terminal device.
  • the access node is further configured to: when a periodic listening broadcast message is periodically broadcast in a specified area, invoke a clock interface, and use the clock interface to the clock server. Sending a clock acquisition request for requesting a real-time clock; receiving real-time clock information returned by the clock server through the clock interface;
  • the access node is further configured to determine whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices that are consecutive n cycles
  • the manner in which the n value and the IP address of the target terminal device in each cycle are encapsulated into a data packet and sent to the aggregation unit is specifically as follows:
  • the access node is further configured to: determine whether the number of the target terminal devices reaches a preset offline quantity, when the number of the target terminal devices reaches the preset offline quantity, and the target terminal devices of the continuous n cycles When the number reaches the preset offline quantity, the n value, the IP address of the target terminal device of each period, and the real-time clock information corresponding to each period are encapsulated into data packets and sent to the convergence unit.
  • the manner in which the aggregation unit is used to perform early warning according to the data packet is specifically:
  • the aggregation unit is configured to invoke a weather interface, and send, by the weather interface, a weather query request to the weather server, where the weather query request is used to request the weather server to query the specified area and the real-time clock information corresponding to each period.
  • Instant weather information alert based on the data packet and the real-time weather information corresponding to each cycle.
  • the access node is further configured to: when an interception message is periodically broadcasted in a designated area, invoke an instant weather interface, by using the instant weather interface
  • the weather server sends a weather acquisition request for acquiring the real-time weather information corresponding to the specified area; and receiving the real-time weather information corresponding to the designated area sent by the weather server from the instant weather interface;
  • the access node is further configured to determine whether the number of the target terminal devices reaches a preset offline quantity, and when the number of the target terminal devices reaches the preset offline quantity, and the number of target terminal devices that are consecutive n cycles
  • the manner in which the n value and the IP address of the target terminal device in each cycle are encapsulated into a data packet and sent to the aggregation unit is specifically as follows:
  • the access node is further configured to: determine whether the number of the target terminal devices reaches a preset offline quantity, when the number of the target terminal devices reaches the preset offline quantity, and the target terminal devices of the continuous n cycles When the number reaches the preset offline quantity, the n value, the IP address of the target terminal device of each period, and the real-time weather information acquired in each period are encapsulated into data packets and sent to the aggregation unit.
  • the embodiment of the invention has the following beneficial effects:
  • the access node periodically broadcasts the interception message in the designated area, and then receives the response message of the terminal device in the specified area to the interception message, and the access node further responds according to the response message. Determining an online terminal device that responds to the interception message in the specified area, and obtaining an offline terminal device that does not respond to the interception message in the specified area according to all the terminal devices and the online terminal device in the designated area, and accessing The node further acquires the listening feedback sent by other access nodes in the specified area.
  • the interception feedback result includes the IP address of the offline terminal device in the designated area determined by the other access node, and the access node determines according to the offline terminal device determined by the self-determined offline terminal device and the offline terminal device indicated by the monitoring feedback result. All the offline terminal devices in the specified area are used as the target terminal device, and the access node determines that the number of target terminal devices reaches the preset offline number, and the number of target terminal devices in the continuous n cycles reaches the preset offline number.
  • the n value, the IP address of the target terminal device of each period is encapsulated into a data packet and sent to the aggregation unit, and the aggregation unit performs an early warning according to the data packet.
  • the access node broadcasts the message through the broadcast. Determining the offline terminal device in the specified area, and then combining all the offline terminal devices in the specified area with the listening feedback result of the other access nodes, as the target terminal device, the number of the target terminal devices in consecutive n cycles
  • the preset offline quantity is reached, it will be reported to the aggregation unit, which is pre-processed by the aggregation unit.
  • the police can perform offline troubleshooting on the target terminal devices in the specified area to ensure the number of online terminal devices in the specified area, and ensure that a sufficient number of online terminal devices in the specified area upload data information to improve the reliability of the data information.
  • FIG. 1 is a schematic diagram of an Internet of Things architecture disclosed by some embodiments of the present invention.
  • FIG. 2 is a schematic flowchart of a method for detecting an Internet of Things terminal device based on an access node according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another method for detecting an Internet of Things terminal device based on an access node according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an IoT terminal device detection system based on an access node according to an embodiment of the present invention.
  • the embodiment of the invention discloses a method for detecting an Internet of Things terminal device based on an access node, which is used for detecting an Internet of Things terminal device, ensuring the number of online terminal devices, and improving the reliability of data information in the Internet of Things.
  • the embodiment of the invention correspondingly provides an IoT terminal device detection system based on an access node.
  • FIG. 1 is a schematic diagram of an Internet of Things architecture disclosed in some embodiments of the present invention. It should be noted that FIG. 1 is only some implementations of the present invention.
  • the schematic diagram of the disclosed Internet of Things architecture, and other schematic diagrams obtained by optimizing or deforming on the basis of FIG. 1 are all within the scope of protection of the present invention, and are not exemplified herein.
  • the IoT architecture shown in FIG. 1 may include three layers of a terminal device layer, an access node layer, and an aggregation unit layer according to functions.
  • the terminal device layer includes a mass terminal device located at the edge of the Internet of Things, such as a hygrometer, a smoke sensor, a ventilation device, a rain sensor, an irrigation valve, etc.; the access node layer may include a large number of access nodes, and these massive accesses Nodes can be interconnected by a network (not shown in Figure 1).
  • the access node may be a variety of intermediate devices, such as a router and a repeater, which are not limited in this embodiment of the present invention.
  • the aggregation unit layer may include a convergence unit, wherein the aggregation unit is used as a human-machine interface of the Internet of Things in the Internet of Things architecture, and is used for high-level management of the entire Internet of Things through the access node, including collecting a large number of terminals in a certain period of time.
  • the data reported by the device analyzes and determines the data, and then converts it into a simple warning, abnormal or related report required by the user; the aggregation unit can also obtain the information or configure the terminal device parameters by sending an instruction (at this time, the transmission of the data points to the terminal device)
  • the aggregation unit can also introduce a variety of input services, from big data to social networks, and even from social tools "likes" to weather sharing.
  • the access node can use any standard networking protocol, and the access node can implement data parsing between different network standards; in the IoT architecture shown in Figure 1, each access node can be its own Massive terminal devices within the coverage of the wireless network provide IoT data transceiving services, wherein each terminal device within the coverage of each access node's own wireless network may have a built-in wireless communication module, which makes each access node Wireless communication can be performed by wireless network communication with each terminal device within the coverage of its own wireless network.
  • the wireless communication module built into the terminal device can input the upper frequency point 470MHz and the lower frequency point 510MHz during production, so that the wireless communication module can automatically define the communication frequency band as 470MHz ⁇ 510MHz, It complies with the provisions of China's SRRC standard; alternatively, it can also input the upper frequency point of 868MHz and the lower frequency point of 908MHz, so that the wireless communication module can automatically
  • the communication frequency band is defined as 868MHz to 908MHz to meet the requirements of the European ETSI standard; or, the upper frequency point can be input to 918MHz and the lower frequency point is 928MHz, so that the wireless communication module can automatically define the communication frequency band as 918MHz to 928MHz to meet the US FCC standard.
  • the communication frequency band of the wireless communication module can also be defined as conforming to the Japanese ARIB standard or the Canadian IC standard, which is not limited by the embodiment of the present invention.
  • the terminal device can use Frequency Division Multiple Access (FDMA), Frequency-Hopping Spread Spectrum (FHSS), and Dynamic Time Division Multiple Access (Dynamic Time Division Multiple Access). , DTDMA), and backtracking multiplexing (CSMA) are combined to solve the interference problem.
  • FDMA Frequency Division Multiple Access
  • FHSS Frequency-Hopping Spread Spectrum
  • CSMA Dynamic Time Division Multiple Access
  • FIG. 2 is a schematic flowchart of a method for detecting an Internet of Things terminal device based on an access node according to an embodiment of the present invention
  • a method for detecting an Internet of Things terminal device based on an access node may include :
  • the access node periodically broadcasts a listening message in a specified area, and receives a response message of the terminal device in the specified area to the listening message.
  • the designated area involved in the embodiment of the present invention may be an "area" or "community" of interest to the convergence unit, including a farm (or a vegetable shed in the farm), a ranch, a garage, a viaduct, and the like.
  • a plurality of terminal devices are arranged in a designated area, and a plurality of access nodes are provided, and the wireless network thereof can cover a partial area of the designated area or the entire designated area.
  • a number of soil moisture sensors are evenly distributed in the farm shed to detect the humidity of the vegetable soil to achieve intelligent irrigation monitoring. Because the soil conditions in different locations are different, the data collected by the soil moisture sensor is different. It is necessary to combine a certain amount of soil moisture sensors to analyze the comprehensive situation of the soil in the vegetable shed.
  • a plurality of access nodes are arranged in the farm (or in the garden), and the wireless network can cover part or all of the garden, and periodically broadcasts a listening message to detect the work of the soil moisture sensor. Status (including online status or offline status).
  • one access node (which may preferably cover the access node of the entire designated area) is determined as the primary access node, and is used as an embodiment of the present invention.
  • the other access nodes only need to determine the offline terminal devices in the specified area, and do not report the target terminal settings to the aggregation unit. Prepare to avoid repeated reporting, resulting in network burden.
  • the access node determines, according to the response message, an online terminal device that responds to the interception message in the specified area, and obtains, according to all the terminal devices and the online terminal device in the designated area, the interception message is not obtained in the designated area.
  • the access node determines, according to the response message, an online terminal device that responds to the interception message in the specified area, and according to all the terminal devices and the online terminal device in the designated area.
  • Obtaining an offline terminal device that does not respond to the interception message in the specified area specifically includes:
  • the access node determines, according to the response message, the online terminal device that responds to the response message in the specified area; the access node determines, according to the status information table that is sent by the aggregation unit to indicate the activated terminal device in the specified area. All activated terminal devices in the designated area; the access node determines, according to the activated terminal device and the online terminal device, the activated terminal device that does not respond to the interception message in the designated area, as the offline terminal device.
  • the aggregation unit performs statistics and recording on the terminal devices in the designated area, and performs statistics on the terminal devices that are valid for being used for work, and obtains a status information table of the terminal devices in the specified area, and then The information is sent to the access node, and the access node determines, according to the status information table, an offline terminal device that does not respond to the interception message in the specified area.
  • the access node obtains a listening feedback result sent by another access node in the specified area, and the interception feedback result includes a network protocol IP address of the offline terminal device in the specified area determined by the other access node.
  • the access node determines, according to the determined offline terminal device and the offline terminal device indicated by the result of the monitoring feedback, all the offline terminal devices in the specified area, as the target terminal device;
  • the access node determines whether the number of target terminal devices reaches a preset offline quantity. When the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches a preset offline quantity, The n value, the IP address of the target terminal device in each cycle is encapsulated into a data packet and sent to the aggregation unit; where n is a positive integer;
  • the access node periodically broadcasts a listening message in the designated area, and the access node also invokes a clock interface, and sends a clock for requesting the real-time clock to the clock server through the clock interface. Acquiring the request; and receiving the real-time clock information returned by the clock server through the clock interface.
  • the access node determines whether the number of target terminal devices reaches the preset offline The number, when the number of target terminal devices reaches the preset offline number, and the number of target terminal devices of the consecutive n cycles reaches the preset offline number, the n value and the IP address of the target terminal device of each cycle are encapsulated into data packets. And sending to the aggregation unit specifically includes:
  • the access node determines whether the number of the target terminal devices reaches the preset offline number. When the number of the target terminal devices reaches the preset offline number, and the number of target terminal devices of the continuous n cycles reaches the preset offline number, the value of n is The IP address of the target terminal device in each cycle and the real-time clock information corresponding to each cycle are encapsulated into data packets and sent to the aggregation unit.
  • the access node may select a subcarrier channel from the transmission frequency band, and send the data packet to the convergence unit through the subcarrier channel.
  • the access node may select a subcarrier channel from the transmission frequency band by using a frequency hopping manner, and then send the data packet to the convergence unit through the subcarrier channel.
  • the access node may select a frequency hopping mode between 100 MHz and 1 GHz, and select a subcarrier channel between 100 MHz and 1 GHz as a subcarrier channel for transmitting data packets.
  • the subcarrier channel may also select a subcarrier channel with a better channel quality to transmit a data packet according to the quality of the channel.
  • the aggregation unit performs an early warning according to the data packet.
  • the aggregation unit performs an early warning according to the data packet, detects a potential abnormality of the target terminal device, analyzes the cause of the target terminal device being offline, and repairs the target terminal device that is offline due to hardware and the like, and improves the offline due to the power failure.
  • the target terminal device ensures that there are enough online terminal devices in the specified area, and the data can be collected and uploaded to the aggregation unit to achieve data aggregation and aggregation and improve the stability and reliability of the Internet of Things.
  • the aggregation unit performs the early warning according to the data packet, including:
  • the aggregation unit invokes the weather interface, and sends a weather query request to the weather server through the weather interface, and the weather query request is used to request the weather server to query the real-time weather information corresponding to the specified area and the real-time clock information of each period; the aggregation unit according to the data packet and each Early weather information corresponding to each cycle is used for early warning.
  • the convergence unit identifies whether it has the right to send a weather query request to the weather server through the weather interface, and if so, passes the weather interface to the weather server. Send a weather query request.
  • the authorized aggregation unit can request instant weather information from the weather server. This privilege includes the opening of a weather forecast service or registration as a member of the weather server.
  • the aggregation unit performs an early warning according to the data packet, so that the reason that the target terminal device in the corresponding cycle is in an offline state can be analyzed according to the real-time weather information corresponding to each cycle, and the target terminal device in each cycle is excluded due to the real-time weather.
  • the target terminal device that is offline is obtained, and the remaining target device to be confirmed is obtained, and then the reason for the offline is further analyzed to be repaired or improved, and a sufficient number of online terminal devices in the designated area are ensured, and data can be collected and uploaded to the normal device.
  • Convergence unit to achieve data aggregation through a kind of “super configuration” to improve the stability and reliability of the Internet of Things.
  • the access node periodically broadcasts the interception message in the designated area, and then receives the response message of the terminal device in the specified area to the interception message, and the access node further responds according to the response message. Determining an online terminal device that responds to the interception message in the specified area, and obtaining an offline terminal device that does not respond to the interception message in the specified area according to all the terminal devices and the online terminal device in the designated area, and accessing The node further obtains the listening feedback result sent by the other access nodes in the specified area, and the interception feedback result includes the IP address of the offline terminal device in the specified area determined by the other access node, and the access node determines the offline according to the self.
  • the offline terminal device indicated by the terminal device and the listening feedback result determines all the offline terminal devices in the specified area as the target terminal device, and the access node determines that the number of the target terminal devices reaches the preset offline quantity, and continuously When the number of target terminal devices in a cycle reaches the preset offline number, the value of n will be
  • the IP address of the periodic target terminal device is encapsulated into a data packet and sent to the aggregation unit, and the aggregation unit performs an early warning according to the data packet. It can be seen that, in the embodiment of the present invention, the access node determines the offline terminal in the designated area by using the broadcast interception message.
  • the device determines, in conjunction with the listening feedback results of other access nodes, all offline terminal devices in the specified area, as the target terminal device, when the number of target terminal devices reaches the preset offline number in consecutive n cycles
  • the report will be reported to the aggregation unit, and the aggregation unit will perform an early warning to perform offline troubleshooting on the target terminal equipment in the designated area to ensure the number of online terminal devices in the designated area, and ensure that a sufficient number of online terminal devices are uploaded in the designated area.
  • Data information to improve the reliability of data information.
  • FIG. 3 is another schematic flowchart of a method for detecting an Internet of Things terminal device based on an access node according to an embodiment of the present invention
  • FIG. 3 is a method for detecting an Internet of Things terminal device based on an access node.
  • Can include:
  • the access node periodically broadcasts a listening message in a specified area, and receives a response message of the terminal device in the specified area to the listening message; and periodically broadcasts the listening message in the specified area.
  • the access node invokes the instant weather interface, and sends a weather acquisition request for acquiring the real-time weather information corresponding to the designated area to the weather server through the real-time weather interface, and receiving the real-time weather information corresponding to the designated area sent by the weather server through the instant weather interface;
  • the access node determines, according to the response message, the online terminal device that responds to the interception message in the specified area, and obtains, according to all the terminal devices and the online terminal device in the specified area, the interception message in the specified area.
  • the access node obtains a listening feedback result sent by another access node in the specified area, and the interception feedback result includes a network protocol IP address of the offline terminal device in the specified area determined by the other access node.
  • the access node determines, according to the determined offline terminal device and the offline terminal device indicated by the result of the monitoring feedback, all the offline terminal devices in the specified area as the target terminal device;
  • the access node determines whether the number of target terminal devices reaches a preset offline quantity. When the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches a preset offline quantity, The value of n, the IP address of the target terminal device of each period, and the real-time weather information acquired in each period are encapsulated into data packets and sent to the aggregation unit;
  • the aggregation unit performs an early warning according to the data packet.
  • the aggregation unit performs an early warning according to the data packet, so that the reason that the target terminal device in the corresponding cycle is in an offline state can be analyzed according to the real-time weather information corresponding to each cycle, and the target terminal device in each cycle is excluded due to the real-time weather.
  • the target terminal device that is offline is obtained, and the remaining target device to be confirmed is obtained, and then the reason for the offline is further analyzed to be repaired or improved, and a sufficient number of online terminal devices in the designated area are ensured, and data can be collected and uploaded to the normal device.
  • Convergence unit to achieve data aggregation through a kind of “super configuration” to improve the stability and reliability of the Internet of Things.
  • FIG. 4 is a schematic structural diagram of an IoT terminal device detection system based on an access node according to an embodiment of the present invention. As shown in FIG. 4, an IoT terminal device detection system based on an access node may include :
  • the access node 410 is configured to periodically broadcast a listening message in the designated area, and receive a response message of the terminal device 420 in the specified area to the listening message;
  • the access node 410 is further configured to: determine, according to the response message, an online terminal device that responds to the interception message in the specified area, and according to all the terminal devices 420 and the online terminal device in the designated area, Obtaining an offline terminal device in the specified area that does not respond to the interception message;
  • the access node 410 is further configured to acquire a listening feedback result sent by another access node in the specified area, where the interception feedback result includes a network protocol IP address of the offline terminal device in the specified area determined by the other access node;
  • the access node 410 is further configured to: determine, according to the offline terminal device determined by the self-determined offline terminal device and the offline terminal device, the all the offline terminal devices in the specified area, as the target terminal device;
  • the access node 410 is further configured to: determine whether the number of target terminal devices reaches a preset offline quantity, when the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches a preset offline quantity.
  • the n value, the IP address of the target terminal device of each period is encapsulated into a data packet and sent to the aggregation unit 430; wherein n is a positive integer;
  • the aggregation unit 430 is configured to perform an early warning according to the data packet.
  • the access node 410 is further configured to determine, according to the response message, an online terminal device that responds to the interception message in the specified area, and according to all the terminal devices and the online terminal device in the designated area.
  • the method for obtaining an offline terminal device that does not respond to the interception message in the specified area is specifically:
  • the access node 410 is further configured to: determine, according to the response message, an online terminal device that responds to the response message in the specified area; and use the status information table that is sent by the aggregation unit 430 to indicate the activated terminal device in the specified area. Determining all activated terminal devices in the designated area; determining, according to the activated terminal device and the online terminal device, the activated terminal device that does not respond to the interception message in the designated area, as the offline terminal device.
  • the access node 410 is further configured to: when the monitoring message is periodically broadcasted in the specified area, invoke the clock interface, and send a clock acquisition request for requesting the real-time clock to the clock server through the clock interface; Receiving real-time clock information returned by the clock server through the clock interface;
  • the access node 410 is further configured to determine whether the number of target terminal devices reaches a preset offline quantity, and when the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the preset offline number.
  • the quantity is encapsulated into a data packet and sent to the aggregation unit 430 by the value of the n value and the IP address of the target terminal device in each cycle.
  • the access node 410 is further configured to: determine whether the number of target terminal devices reaches a preset offline quantity, when the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches a preset offline quantity. When, the value of n, the IP address of the target terminal device per cycle, each cycle The corresponding real-time clock information is encapsulated into a data packet and sent to the convergence unit 430.
  • the method used by the aggregation unit 430 to perform early warning according to the data packet is specifically:
  • the aggregation unit 430 is configured to invoke a weather interface, and send a weather query request to the weather server through the weather interface, where the weather query request is used to request the weather server to query the real-time weather information corresponding to the specified area and the real-time clock information of each period; according to the data packet and The real-time weather information corresponding to each cycle is alerted.
  • the aggregation unit 430 identifies, by using the weather interface, the weather interface to send a weather query request to the weather server through the weather interface, and the aggregation unit 430 identifies whether it has the right to send a weather query request to the weather server through the weather interface, and if so, passes the weather interface to the weather.
  • the server sends a weather query request.
  • only the privileged aggregation unit 430 can request instant weather information from the weather server, including the activation of the weather forecast service or registration as a member of the weather server.
  • the access node 410 is further configured to: when the monitoring message is periodically broadcasted in the designated area, invoke the instant weather interface, and send the real-time weather information corresponding to the designated area to the weather server through the instant weather interface.
  • Weather acquisition request ; receiving real-time weather information corresponding to a designated area sent by the weather server from the instant weather interface;
  • the access node 410 is further configured to determine whether the number of target terminal devices reaches a preset offline quantity, and when the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches the preset offline number.
  • quantity the way to encapsulate the value of n and the IP address of the target terminal device in each cycle into a data packet and send it to the aggregation unit is as follows:
  • the access node 410 is further configured to: determine whether the number of target terminal devices reaches a preset offline quantity, when the number of target terminal devices reaches a preset offline quantity, and the number of target terminal devices in consecutive n cycles reaches a preset offline quantity.
  • the n value, the IP address of the target terminal device of each period, and the real-time weather information acquired in each period are encapsulated into data packets and sent to the aggregation unit 430.
  • the access node 410 may select a subcarrier channel from the transmission frequency band, and send the data packet to the convergence unit 430 through the subcarrier channel.
  • the access node 410 may select a subcarrier channel from the transmission frequency band by using a frequency hopping manner, and then send the data packet to the convergence unit 430 through the subcarrier channel.
  • the access node may select a frequency hopping mode between 100 MHz and 1 GHz, and select a subcarrier channel between 100 MHz and 1 GHz as a subcarrier channel for transmitting data packets.
  • the subcarrier channel may also select a subcarrier channel with a better channel quality to transmit a data packet according to the quality of the channel.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • OTPROM One-Time Programmable Read-Only Memory
  • EEPROM Electronically-Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory

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Abstract

本发明公开了一种基于接入节点的物联网终端设备检测方法及系统，该方法包括：接入节点周期性在指定区域内广播侦听消息，并接收响应消息，根据响应消息，获得指定区域内未对侦听消息做出响应的离线终端设备，及获取指定区域内其它接入节点发送的侦听反馈结果，根据确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定指定区域内所有离线终端设备作为目标终端设备，当连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；汇聚单元根据数据包进行预警；用于检测物联网终端设备，保证在线终端设备数量，提高物联网中数据信息的可靠性。

Description

一种基于接入节点的物联网终端设备检测方法及系统 技术领域
本发明涉及物联网技术领域，具体涉及一种基于接入节点的物联网终端设备检测方法及系统。
背景技术
物联网(Internet of Things，简称IOT)就是物物相连的互联网，是在互联网基础上延伸和扩展得到的网络，且用户终端延伸和扩展到了任何物品与物品之间，能够进行信息交换和通信。物联网通过射频识别设备、红外感应设备、激光扫描器、气体感应器等终端设备把任何物品与互联网连接起来，以实现智能化识别、定位、跟踪、监控和管理的一种网络。终端设备能够独立自主地进行运作，且在指定区域内对终端设备数量有严格要求，通过数量保证终端设备采集的数据信息的可靠性。但在实际使用过程中，终端设备的工作状态会受到很多因素影响，包括硬件故障、供电故障、环境天气等，而无法保证指定区域内的所有终端设备都能够正常上传数据，进而不能确保上传的数据信息能够准确地反映出真实情况，影响了数据信息的可靠性。
发明内容
本发明实施例公开了一种基于接入节点的物联网终端设备检测方法及系统，用于检测物联网终端设备，保证在线终端设备数量，提高物联网中数据信息的可靠性。
本发明第一方面公开了一种基于接入节点的物联网终端设备检测方法，可包括：
接入节点周期性在指定区域内广播侦听消息，以及接收位于所述指定区域内的终端设备对所述侦听消息的响应消息；
所述接入节点根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备；
所述接入节点获取所述指定区域内的其它接入节点发送的侦听反馈结果，所述侦听反馈结果包括所述其它接入节点确定出的所述指定区域内的离线终端设备的网络协议IP地址；
所述接入节点根据自身确定出的离线终端设备和所述侦听反馈结果所指示的离线终端设备，确定出所述指定区域内所有的离线终端设备，作为目标终端设备；
所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；其中，所述n为正整数；
所述汇聚单元根据所述数据包进行预警。
作为一种可选的实施方式，在本发明第一方面中，所述接入节点根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备，包括：
所述接入节点根据所述响应消息，确定出所述指定区域内对所述响应消息做出响应的在线终端设备；
所述接入节点根据所述汇聚单元下发的用于指示所述指定区域内的被激活终端设备的状态信息表，确定出所述指定区域内的所有被激活终端设备；
所述接入节点根据所述被激活终端设备与所述在线终端设备，确定出所述指定区域内未对所述侦听消息做出响应的被激活终端设备，作为所述离线终端设备。
作为一种可选的实施方式，在本发明第一方面中，在所述接入节点周期性在指定区域内广播侦听消息时，所述方法还包括：
在所述接入节点周期性在指定区域内广播侦听消息时，所述接入节点调用时钟接口，通过所述时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；
所述接入节点通过所述时钟接口接收所述时钟服务器返回的实时时钟信息；
所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，包括：
所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述 目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息封装成数据包发送给所述汇聚单元。
作为一种可选的实施方式，在本发明第一方面中，所述汇聚单元根据所述数据包进行预警包括：
所述汇聚单元调用天气接口，通过所述天气接口向天气服务器发送天气查询请求，所述天气查询请求用于向所述天气服务器请求查询包括所述指定区域和每个周期实时时钟信息对应的即时天气信息；
所述汇聚单元根据所述数据包和每个周期对应的即时天气信息进行预警。
作为一种可选的实施方式，在本发明第一方面中，在所述接入节点周期性在指定区域内广播侦听消息时，所述方法还包括：
在所述接入节点周期性在指定区域内广播侦听消息时，所述接入节点调用即时天气接口，通过所述即时天气接口向天气服务器发送获取所述指定区域对应的即时天气信息的天气获取请求；
所述接入节点从所述即时天气接口接收所述天气服务器发送的所述指定区域对应的即时天气信息；
所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，包括：
所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给所述汇聚单元。
本发明第二方面公开了一种基于接入节点的物联网终端设备检测系统，可包括：
接入节点，用于周期性在指定区域内广播侦听消息，以及接收位于所述指定区域内的终端设备对所述侦听消息的响应消息；
所述接入节点还用于，根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所 述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备；
所述接入节点还用于，获取所述指定区域内的其它接入节点发送的侦听反馈结果，所述侦听反馈结果包括所述其它接入节点确定出的所述指定区域内的离线终端设备的网络协议IP地址；
所述接入节点还用于，根据自身确定出的离线终端设备和所述侦听反馈结果所指示的离线终端设备，确定出所述指定区域内所有的离线终端设备，作为目标终端设备；
所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；其中，所述n为正整数；
所述汇聚单元，用于根据所述数据包进行预警。
作为一种可选的实施方式，在本发明第二方面中，所述接入节点还用于根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备的方式具体为：
所述接入节点还用于，根据所述响应消息，确定出所述指定区域内对所述响应消息做出响应的在线终端设备；根据所述汇聚单元下发的用于指示所述指定区域内的被激活终端设备的状态信息表，确定出所述指定区域内的所有被激活终端设备；根据所述被激活终端设备与所述在线终端设备，确定出所述指定区域内未对所述侦听消息做出响应的被激活终端设备，作为所述离线终端设备。
作为一种可选的实施方式，在本发明第二方面中，所述接入节点还用于在指定区域内周期性广播侦听消息的同时，调用时钟接口，通过所述时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；通过所述时钟接口接收所述时钟服务器返回的实时时钟信息；
所述接入节点还用于判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元的方式具体为：
所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息封装成数据包发送给所述汇聚单元。
作为一种可选的实施方式，在本发明第二方面中，所述汇聚单元用于根据所述数据包进行预警的方式具体为：
所述汇聚单元用于调用天气接口，通过所述天气接口向天气服务器发送天气查询请求，所述天气查询请求用于向所述天气服务器请求查询包括所述指定区域和每个周期实时时钟信息对应的即时天气信息；根据所述数据包和每个周期对应的即时天气信息进行预警。
作为一种可选的实施方式，在本发明第二方面中，所述接入节点还用于在指定区域内周期性广播侦听消息的同时，调用即时天气接口，通过所述即时天气接口向天气服务器发送获取所述指定区域对应的即时天气信息的天气获取请求；从所述即时天气接口接收所述天气服务器发送的所述指定区域对应的即时天气信息；
所述接入节点还用于判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元的方式具体为：
所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给所述汇聚单元。
与现有技术相比，本发明实施例具有以下有益效果：
在本发明实施例中，接入节点通过在指定区域内周期性地广播侦听消息，然后接收指定区域内的终端设备对该侦听消息做出的响应消息，接入节点再根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备，接入节点进一步获取指定区域内其它接入节点发送的侦听反馈 结果，该侦听反馈结果包括其它接入节点确定出的指定区域内的离线终端设备的IP地址，接入节点根据自身确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定出指定区域内所有离线终端设备，作为目标终端设备，接入节点在确定出目标终端设备的数量达到预设离线数量时，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，汇聚单元根据数据包进行预警；可以看出，实施本发明实施例，接入节点通过广播侦听消息确定指定区域内的离线终端设备，然后结合其它接入节点的侦听反馈结果，确定出指定区域内的所有离线终端设备，作为目标终端设备，在连续的n个周期中，目标终端设备的数量都达到预设离线数量时，将汇报给汇聚单元，由汇聚单元进行预警，以便对指定区域内的目标终端设备进行离线原因排查，确保指定区域内的在线终端设备的数量，保证指定区域内有足够数量的在线终端设备上传数据信息，提高数据信息的可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一些实施例公开的物联网架构示意图；
图2为本发明实施例公开的基于接入节点的物联网终端设备检测方法的流程示意图；
图3为本发明实施例公开的基于接入节点的物联网终端设备检测方法的另一流程示意图；
图4为本发明实施例公开的基于接入节点的物联网终端设备检测系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，本发明实施例的术语“包括”和“具有”以及他们的任何变 形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本发明实施例公开了一种基于接入节点的物联网终端设备检测方法，用于检测物联网终端设备，保证在线终端设备数量，提高物联网中数据信息的可靠性。本发明实施例相应地提供了一种基于接入节点的物联网终端设备检测系统。
在介绍本发明技术方案之前，先简单介绍本发明一些实施例公开的物联网架构，图1为本发明一些实施例公开的物联网架构示意图，需要说明的是，图1仅为本发明一些实施例公开的物联网架构示意图，其它在图1基础上进行优化或者变形得到的示意图均属于本发明的保护范围，在此不再一一举例。图1所示的物联网架构按照功能划分可以包括终端设备层、接入节点层以及汇聚单元层三个层。其中，终端设备层包括位于物联网边缘的海量终端设备，例如湿度计、烟感器、通风设备、雨量传感器、灌溉阀等等；接入节点层可以包括大量接入节点，这些大量的接入节点之间可以通过网络互联(图1未全部示出)。在接入节点层中，接入节点可以是路由器、中继器等各种中间设备，本发明实施例不作限定。汇聚单元层可以包括汇聚单元，其中，汇聚单元在这种物联网架构中用作物联网的人机接口，用于通过接入节点对整个物联网进行高层管理，包括收集某段时间内的海量终端设备上报的数据，对数据进行分析和决策，然后转化成为用户需要的简单预警、异常或者相关报告；汇聚单元还可以通过发指令去获取信息或者配置终端设备参数(此时数据的传输指向终端设备)；汇聚单元还可以引入各种输入业务，从大数据到社交网络、甚至从社交工具“点赞”到天气分享等。另外，接入节点可以使用任何标准的组网协议，而且接入节点可以在不同的网络制式之间实现数据解析；在图1所示的物联网架构中，每一个接入节点可以为其自身无线网络所覆盖范围内的海量终端设备提供物联网数据收发服务，其中，每一个接入节点自身无线网络所覆盖范围内的每一个终端设备可以内置有无线通讯模块，这使得每一个接入节点可以通过无线网络通讯方式与自身无线网络所覆盖范围内的每一个终端设备进行无线通讯。在图1所示的物联网架构中，终端设备内置的无线通讯模块在生产时，可以输入上频点470MHz，下频点510MHz，这样无线通讯模块可以自动将通讯频段定义为470MHz～510MHz，以符合中国SRRC标准的规定；或者，也可以输入上频点868MHz，下频点908MHz，这样无线通讯模块可以自动将 通讯频段定义为868MHz～908MHz，以符合欧洲ETSI标准的规定；或者，可以输入上频点918MHz，下频点928MHz，这样无线通讯模块可以自动将通讯频段定义为918MHz～928MHz，以符合美国FCC标准的规定；或者，无线通讯模块的通讯频段也可以定义为符合日本ARIB标准或加拿大IC标准的规定，本发明实施例不作限定。在图1所示的物联网架构中，终端设备可以采用频分复用(Frequency Division Multiple Access，FDMA)、跳频(Frequency-Hopping Spread Spectrum，FHSS)、动态时分复用(Dynamic Time Division Multiple Access，DTDMA)、退避复用(CSMA)相结合的方法来解决干扰问题。
结合图1所介绍的物联网架构，下面将通过具体实施例，对本发明技术方案进行详细说明。
实施例一
请参阅图2，图2为本发明实施例公开的基于接入节点的物联网终端设备检测方法的流程示意图；如图2所示，一种基于接入节点的物联网终端设备检测方法可包括：
201、接入节点周期性在指定区域内广播侦听消息，以及接收位于指定区域内的终端设备对侦听消息的响应消息；
本发明实施例涉及的指定区域可以是汇聚单元感兴趣的“区域”或者“社区”，包括农场(或者农场中某个菜棚)、牧场、车库、高架桥等。在指定区域内设置有若干终端设备，且设置有多个接入节点，其无线网络能够覆盖指定区域的部分区域或者整个指定区域。举例来说，农场菜棚园内均匀分布若干土壤湿度传感器，用于检测菜地土壤的湿度，以实现智能化的灌溉监控。由于不同位置土壤的具体情况不一样，土壤湿度传感器采集到的数据也不一样，需要结合一定数量的土壤湿度传感器来分析该菜棚土壤的综合情况。在农场(或者该菜棚园内)中设置多个接入节点，其无线网络能够覆盖该菜棚园的部分区域或者全部区域，并周期性地广播侦听消息，以检测土壤湿度传感器的工作状态(包括在线状态或者离线状态)。
需要说明的是，从覆盖部分或者整个指定区域的所有接入节点中，确定出一个接入节点(可以优选能够覆盖整个指定区域的接入节点)作为主接入节点，并作为本发明实施例中用于向汇聚单元汇报目标终端设备的接入节点。而其它接入节点只需要确定出指定区域内的离线终端设备，不用向汇聚单元汇报目标终端设 备，避免重复汇报，造成网络负担。
202、接入节点根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备；
作为一种可选的实施方式，在步骤202中接入节点根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备具体包括：
接入节点根据响应消息，确定出指定区域内对响应消息做出响应的在线终端设备；接入节点根据汇聚单元下发的用于指示指定区域内的被激活终端设备的状态信息表，确定出指定区域内的所有被激活终端设备；接入节点根据被激活终端设备与在线终端设备，确定出指定区域内未对侦听消息做出响应的被激活终端设备，作为离线终端设备。在该实施方式中，汇聚单元有对指定区域内的终端设备进行统计和记录，将其中有效的被激活以用于工作的终端设备进行统计，得到该指定区域内终端设备的状态信息表，然后发送给接入节点，接入节点根据状态信息表确定出指定区域内未对侦听消息做出响应的离线终端设备。
203、接入节点获取指定区域内的其它接入节点发送的侦听反馈结果，侦听反馈结果包括其它接入节点确定出的指定区域内的离线终端设备的网络协议IP地址；
204、接入节点根据自身确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定出指定区域内所有的离线终端设备，作为目标终端设备；
205、接入节点判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；其中，n为正整数；
作为一种可选的实施方式，步骤201中接入节点在指定区域内周期性广播侦听消息的同时，接入节点还调用时钟接口，通过时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；以及通过时钟接口接收时钟服务器返回的实时时钟信息。
进而，在步骤205中，接入节点判断目标终端设备的数量是否达到预设离线 数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元具体包括：
接入节点判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息封装成数据包发送给汇聚单元。
作为一种可选的实施方式，接入节点可以从传输频段中选择子载波信道，通过该子载波信道发送数据包给汇聚单元。具体地，接入节点可以采用跳频方式从传输频段中选择子载波信道，然后通过子载波信道发送数据包给汇聚单元。举例来说，接入节点可以在100MHz～1GHz之间以跳频方式选择，选择出100MHz～1GHz之间的一个子载波信道作为传输数据包的子载波信道。另外，子载波信道也可以根据信道的质量选择信道质量较好的子载波信道传输数据包。
206、汇聚单元根据数据包进行预警。
具体地，汇聚单元根据数据包进行预警，检测目标终端设备潜在的异常，分析导致目标终端设备离线的原因，并修复因硬件等原因造成离线的目标终端设备、改善因供电故障等原因造成离线的目标终端设备，从而确保指定区域内有足够在线终端设备，能够正常采集数据并上传给汇聚单元，以实现通过一种“超配置”来汇聚数据信息，提高物联网的稳定性和可靠性。
作为一种可选的实施方式，若数据包包括n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息，在步骤206中汇聚单元根据数据包进行预警包括：
汇聚单元调用天气接口，通过天气接口向天气服务器发送天气查询请求，天气查询请求用于向天气服务器请求查询包括指定区域和每个周期实时时钟信息对应的即时天气信息；汇聚单元根据数据包和每个周期对应的即时天气信息进行预警。
进一步地，汇聚单元在调用天气接口，通过天气接口向天气服务器发送天气查询请求之前，汇聚单元识别自身是否具备通过天气接口向天气服务器发送天气查询请求的权限，如果具备，通过天气接口向天气服务器发送天气查询请求。在该实施方式中，只有具备权限的汇聚单元，才能向天气服务器请求即时天气信息， 该权限包括开通了天气预报服务或者注册成为了天气服务器的会员。
具体地，汇聚单元根据数据包进行预警，以便能够根据每个周期对应的即时天气信息，分析对应周期的目标终端设备处于离线状态的原因，从每个周期的目标终端设备中排除由于即时天气原因导致离线的目标终端设备，得到剩余待确认的目标终端设备，然后再进一步分析其离线的原因，以进行修复或者改善，确保指定区域内有足够数量的在线终端设备，能够正常采集数据并上传给汇聚单元，以实现通过一种“超配置”来汇聚数据信息，提高物联网的稳定性和可靠性。
在本发明实施例中，接入节点通过在指定区域内周期性地广播侦听消息，然后接收指定区域内的终端设备对该侦听消息做出的响应消息，接入节点再根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备，接入节点进一步获取指定区域内其它接入节点发送的侦听反馈结果，该侦听反馈结果包括其它接入节点确定出的指定区域内的离线终端设备的IP地址，接入节点根据自身确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定出指定区域内所有离线终端设备，作为目标终端设备，接入节点在确定出目标终端设备的数量达到预设离线数量时，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，汇聚单元根据数据包进行预警；可以看出，实施本发明实施例，接入节点通过广播侦听消息确定指定区域内的离线终端设备，然后结合其它接入节点的侦听反馈结果，确定出指定区域内的所有离线终端设备，作为目标终端设备，在连续的n个周期中，目标终端设备的数量都达到预设离线数量时，将汇报给汇聚单元，由汇聚单元进行预警，以便对指定区域内的目标终端设备进行离线原因排查，确保指定区域内的在线终端设备的数量，保证指定区域内有足够数量的在线终端设备上传数据信息，提高数据信息的可靠性。
实施例二
请参阅图3，图3为本发明实施例公开的基于接入节点的物联网终端设备检测方法的另一流程示意图；如图3所示，一种基于接入节点的物联网终端设备检测方法可包括：
301、接入节点在指定区域内周期性广播侦听消息，以及接收位于指定区域内的终端设备对侦听消息的响应消息；且在指定区域内周期性广播侦听消息的同 时，接入节点调用即时天气接口，通过即时天气接口向天气服务器发送获取指定区域对应的即时天气信息的天气获取请求，以及通过即时天气接口接收天气服务器发送的指定区域对应的即时天气信息；
302、接入节点根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备；
303、接入节点获取指定区域内的其它接入节点发送的侦听反馈结果，侦听反馈结果包括其它接入节点确定出的指定区域内的离线终端设备的网络协议IP地址；
304、接入节点根据自身确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定出指定区域内所有的离线终端设备，作为目标终端设备；
305、接入节点判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给汇聚单元；
306、汇聚单元根据数据包进行预警。
具体地，汇聚单元根据数据包进行预警，以便能够根据每个周期对应的即时天气信息，分析对应周期的目标终端设备处于离线状态的原因，从每个周期的目标终端设备中排除由于即时天气原因导致离线的目标终端设备，得到剩余待确认的目标终端设备，然后再进一步分析其离线的原因，以进行修复或者改善，确保指定区域内有足够数量的在线终端设备，能够正常采集数据并上传给汇聚单元，以实现通过一种“超配置”来汇聚数据信息，提高物联网的稳定性和可靠性。
实施例三
请参阅图4，图4为本发明实施例公开的基于接入节点的物联网终端设备检测系统的结构示意图；如图4所示，一种基于接入节点的物联网终端设备检测系统可包括：
接入节点410，用于周期性在指定区域内广播侦听消息，以及接收位于指定区域内的终端设备420对侦听消息的响应消息；
接入节点410还用于，根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备420和在线终端设备， 获得指定区域内未对侦听消息做出响应的离线终端设备；
接入节点410还用于，获取指定区域内的其它接入节点发送的侦听反馈结果，侦听反馈结果包括其它接入节点确定出的指定区域内的离线终端设备的网络协议IP地址；
接入节点410还用于，根据自身确定出的离线终端设备和侦听反馈结果所指示的离线终端设备，确定出指定区域内所有的离线终端设备，作为目标终端设备；
接入节点410还用于，判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元430；其中，n为正整数；
汇聚单元430，用于根据数据包进行预警。
作为一种可选的实施方式，接入节点410还用于根据响应消息，确定出指定区域内对侦听消息做出响应的在线终端设备，以及根据指定区域内的所有终端设备和在线终端设备，获得指定区域内未对侦听消息做出响应的离线终端设备的方式具体为：
接入节点410还用于，根据响应消息，确定出指定区域内对响应消息做出响应的在线终端设备；根据汇聚单元430下发的用于指示指定区域内的被激活终端设备的状态信息表，确定出指定区域内的所有被激活终端设备；根据被激活终端设备与在线终端设备，确定出指定区域内未对侦听消息做出响应的被激活终端设备，作为离线终端设备。
作为一种可选的实施方式，接入节点410还用于在指定区域内周期性广播侦听消息的同时，调用时钟接口，通过时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；通过时钟接口接收时钟服务器返回的实时时钟信息；
进而，接入节点410还用于判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元430的方式具体为：
接入节点410还用于，判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址、每个周期 对应的实时时钟信息封装成数据包发送给汇聚单元430。
作为一种可选的实施方式，汇聚单元430用于根据数据包进行预警的方式具体为：
汇聚单元430用于调用天气接口，通过天气接口向天气服务器发送天气查询请求，天气查询请求用于向天气服务器请求查询包括指定区域和每个周期实时时钟信息对应的即时天气信息；根据数据包和每个周期对应的即时天气信息进行预警。
其中，汇聚单元430在调用天气接口，通过天气接口向天气服务器发送天气查询请求之前，汇聚单元430识别自身是否具备通过天气接口向天气服务器发送天气查询请求的权限，如果具备，通过天气接口向天气服务器发送天气查询请求。在该实施方式中，只有具备权限的汇聚单元430，才能向天气服务器请求即时天气信息，该权限包括开通了天气预报服务或者注册成为了天气服务器的会员。
作为一种可选的实施方式，接入节点410还用于在指定区域内周期性广播侦听消息的同时，调用即时天气接口，通过即时天气接口向天气服务器发送获取指定区域对应的即时天气信息的天气获取请求；从即时天气接口接收天气服务器发送的指定区域对应的即时天气信息；
进而，接入节点410还用于判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元的方式具体为：
接入节点410还用于，判断目标终端设备的数量是否达到预设离线数量，当目标终端设备的数量达到预设离线数量，且连续n个周期的目标终端设备的数量均达到预设离线数量时，将n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给汇聚单元430。
作为一种可选的实施方式，接入节点410可以从传输频段中选择子载波信道，通过该子载波信道发送数据包给汇聚单元430。具体地，接入节点410可以采用跳频方式从传输频段中选择子载波信道，然后通过子载波信道发送数据包给汇聚单元430。举例来说，接入节点可以在100MHz～1GHz之间以跳频方式选择，选择出100MHz～1GHz之间的一个子载波信道作为传输数据包的子载波信道。另外，子载波信道也可以根据信道的质量选择信道质量较好的子载波信道传输数据包。
通过实施上述系统，能够检测指定区域内的离线终端设备作为目标终端设备，分析对应周期的目标终端设备处于离线状态的原因，以进行修复或者改善，确保指定区域内有足够在线终端设备，能够正常采集数据并上传给汇聚单元，以实现通过一种“超配置”来汇聚数据信息，提高物联网的稳定性和可靠性。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质包括只读存储器(Read-Only Memory，ROM)、随机存储器(Random Access Memory，RAM)、可编程只读存储器(Programmable Read-only Memory，PROM)、可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、一次可编程只读存储器(One-time Programmable Read-Only Memory，OTPROM)、电子抹除式可复写只读存储器(Electrically-Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储器、磁盘存储器、磁带存储器、或者能够用于携带或存储数据的计算机可读的任何其他介质。
以上对本发明实施例公开的一种基于接入节点的物联网终端设备检测方法及系统进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种基于接入节点的物联网终端设备检测方法，其特征在于，包括：
    接入节点周期性在指定区域内广播侦听消息，以及接收位于所述指定区域内的终端设备对所述侦听消息的响应消息；
    所述接入节点根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备；
    所述接入节点获取所述指定区域内的其它接入节点发送的侦听反馈结果，所述侦听反馈结果包括所述其它接入节点确定出的所述指定区域内的离线终端设备的网络协议IP地址；
    所述接入节点根据自身确定出的离线终端设备和所述侦听反馈结果所指示的离线终端设备，确定出所述指定区域内所有的离线终端设备，作为目标终端设备；
    所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；其中，所述n为正整数；
    所述汇聚单元根据所述数据包进行预警。
  2. 根据权利要求1所述的方法，其特征在于，所述接入节点根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备，包括：
    所述接入节点根据所述响应消息，确定出所述指定区域内对所述响应消息做出响应的在线终端设备；
    所述接入节点根据所述汇聚单元下发的用于指示所述指定区域内的被激活终端设备的状态信息表，确定出所述指定区域内的所有被激活终端设备；
    所述接入节点根据所述被激活终端设备与所述在线终端设备，确定出所述指定区域内未对所述侦听消息做出响应的被激活终端设备，作为所述离线终端设备。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述接入节点周期性在指定区域内广播侦听消息时，所述方法还包括：
    在所述接入节点周期性在指定区域内广播侦听消息时，所述接入节点调用时钟接口，通过所述时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；
    所述接入节点通过所述时钟接口接收所述时钟服务器返回的实时时钟信息；
    所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，包括：
    所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息封装成数据包发送给所述汇聚单元。
  4. 根据权利要求3所述的方法，其特征在于，所述汇聚单元根据所述数据包进行预警包括：
    所述汇聚单元调用天气接口，通过所述天气接口向天气服务器发送天气查询请求，所述天气查询请求用于向所述天气服务器请求查询包括所述指定区域和每个周期实时时钟信息对应的即时天气信息；
    所述汇聚单元根据所述数据包和每个周期对应的即时天气信息进行预警。
  5. 根据权利要求1所述的方法，其特征在于，在所述接入节点周期性在指定区域内广播侦听消息时，所述方法还包括：
    在所述接入节点周期性在指定区域内广播侦听消息时，所述接入节点调用即时天气接口，通过所述即时天气接口向天气服务器发送获取所述指定区域对应的即时天气信息的天气获取请求；
    所述接入节点从所述即时天气接口接收所述天气服务器发送的所述指定区域对应的即时天气信息；
    所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元，包括：
    所述接入节点判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的 数量均达到所述预设离线数量时，将所述n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给所述汇聚单元。
  6. 一种基于接入节点的物联网终端设备检测系统，其特征在于，包括：
    接入节点，用于周期性在指定区域内广播侦听消息，以及接收位于所述指定区域内的终端设备对所述侦听消息的响应消息；
    所述接入节点还用于，根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备；
    所述接入节点还用于，获取所述指定区域内的其它接入节点发送的侦听反馈结果，所述侦听反馈结果包括所述其它接入节点确定出的所述指定区域内的离线终端设备的网络协议IP地址；
    所述接入节点还用于，根据自身确定出的离线终端设备和所述侦听反馈结果所指示的离线终端设备，确定出所述指定区域内所有的离线终端设备，作为目标终端设备；
    所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元；其中，所述n为正整数；
    所述汇聚单元，用于根据所述数据包进行预警。
  7. 根据权利要求6所述的系统，其特征在于，所述接入节点还用于根据所述响应消息，确定出所述指定区域内对所述侦听消息做出响应的在线终端设备，以及根据所述指定区域内的所有终端设备和所述在线终端设备，获得所述指定区域内未对所述侦听消息做出响应的离线终端设备的方式具体为：
    所述接入节点还用于，根据所述响应消息，确定出所述指定区域内对所述响应消息做出响应的在线终端设备；根据所述汇聚单元下发的用于指示所述指定区域内的被激活终端设备的状态信息表，确定出所述指定区域内的所有被激活终端设备；根据所述被激活终端设备与所述在线终端设备，确定出所述指定区域内未对所述侦听消息做出响应的被激活终端设备，作为所述离线终端设备。
  8. 根据权利要求6或7所述的系统，其特征在于：
    所述接入节点还用于在指定区域内周期性广播侦听消息的同时，调用时钟接 口，通过所述时钟接口向时钟服务器发送用于请求实时时钟的时钟获取请求；通过所述时钟接口接收所述时钟服务器返回的实时时钟信息；
    所述接入节点还用于判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元的方式具体为：
    所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址、每个周期对应的实时时钟信息封装成数据包发送给所述汇聚单元。
  9. 根据权利要求8所述的系统，其特征在于，所述汇聚单元用于根据所述数据包进行预警的方式具体为：
    所述汇聚单元用于调用天气接口，通过所述天气接口向天气服务器发送天气查询请求，所述天气查询请求用于向所述天气服务器请求查询包括所述指定区域和每个周期实时时钟信息对应的即时天气信息；根据所述数据包和每个周期对应的即时天气信息进行预警。
  10. 根据权利要求6所述的系统，其特征在于：
    所述接入节点还用于在指定区域内周期性广播侦听消息的同时，调用即时天气接口，通过所述即时天气接口向天气服务器发送获取所述指定区域对应的即时天气信息的天气获取请求；从所述即时天气接口接收所述天气服务器发送的所述指定区域对应的即时天气信息；
    所述接入节点还用于判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期目标终端设备的IP地址封装成数据包并发送给汇聚单元的方式具体为：
    所述接入节点还用于，判断所述目标终端设备的数量是否达到预设离线数量，当所述目标终端设备的数量达到所述预设离线数量，且连续n个周期的目标终端设备的数量均达到所述预设离线数量时，将所述n值、每个周期的目标终端设备的IP地址、每个周期获取到的即时天气信息封装成数据包并发送给所述汇聚单元。
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