Abstract: Industrial internet of things (IoT) with a sensing network platform in a post-sub-platform type where an issuing cache is set and controlling method thereof are provided, which has adopted a form of a five-platform structure to construct an intelligent manufacturing industrial IoT. Each platform has a corresponding hardware device. As a service platform and a management platform adopt a centralized layout, while the sensing network platform adopts a post-sub-platform layout, the sensing network platform may receive large quantities of instructions issued by the management platform, and balance the coordination of various instructions at the same time, which makes the present disclosure very suitable for large-scale production lines with the requirement of high overall coordination and makes the present disclosure have strong applicability.

Abstract: The present disclosure discloses a method for determining an abnormal device in a process of measuring energy of natural gas based on Internet of Things (IOT). The method may include obtaining a natural gas detection parameter detected by at least one detection device via a sense network platform in response to a query request; determining first energy data and second energy data by processing the natural gas detection parameter; determining whether the abnormal device exists by comparing the first energy data and the second energy data; in response to determining that the abnormal device exists, for each detection device, determining a probability that the detection device is abnormal based on related information of the detection device, the first energy data, and the second energy data; and determining the abnormal device based on the probability that the detection device is abnormal.

Abstract: The disclosure provides an Internet of Things system and a method for managing a people flow of a public place in a smart city. The method may comprise obtaining pedestrian distribution information in a preset area during a current time period via network from a storage device; determining, by processing the pedestrian distribution information through an area location prediction model, at least one area location in the preset area for a future time period, a population flow load of the area location being greater than a first threshold, wherein the area location prediction model includes a graph neural network model, a graph input into the graph neural network model includes at least two nodes and at least one edge; generating, based on the area location, prompt information; and feedbacking the prompt information to a user terminal of a user platform through a service platform via the network.

Abstract: The present disclosure discloses an industrial Internet of Things (IoT) of integrating centralized platforms and rear sub-platforms, the industrial IoT includes a user platform, a service platform, a management platform, a sensor network platform, and an object platform interacting in sequence, both the service platform and the sensor network platform are arranged using a centralized platform arrangement and the management platform is arranged using a rear sub-platform arrangement, the production line manufacturing equipment and the production line accessory supply equipment collect accessory data of corresponding equipment through the equipment data collectors and add the index item information through the management platform. Therefore, the corresponding index item information is classified and processed by sub-platforms of corresponding and different management platforms, so as to ensure the transmission and classification of data.

Abstract: The present disclosure provides an Industrial Internet of Things system conducive to system function expansion and system adjustment and control method thereof. The system comprises a user platform, a service platform, a management platform, a sensor network platform, and an object platform. The service platform and the sensor network platform adopt independent layout, and the management platform adopts centralized layout. The management platform is configured to store a control program that drives operation of production line equipment. The management platform is configured to call the control parameters in the database through communicating with the service platform and configure the control parameters in the control program to control the operation of production line equipment; and a data interaction mode between the user platform and the service platform is modifying and deleting the control parameters in the service platform through data transmission between the user platform and the service platform.

Abstract: A Christmas tree stand connecting structure and an LED decorative lamp are disclosed. The Christmas tree stand connecting structure includes a fixed disc and an LED decorative lamp, wherein a side wall of the fixed disc is movably connected with a supporting frame. A top of the fixed disc is equipped with a connecting mechanism, wherein an angle adjusting assembly is arranged in the connecting mechanism. The connecting mechanism includes a connecting part, a positioning part, a connecting end, a connecting line, and a connecting port. The connecting part is assembled through the positioning part on a bottom of the connecting part and the positioning slot in a top. In a mounting process, a blocking part inside a matching slot is jacked to two sides through a semicircular structure on the top for a clamping part to clamp and fix a side wall of the blocking part.

Abstract: A lamp device capable of being rotated to plug in at any angle includes a mounting base, wherein side walls of the mounting base are fixedly connected with four fixed supporting feet, wherein the four fixed supporting feet are uniformly distributed on the side walls of the mounting base. A mounting slot is formed inside the mounting base, and a plurality of plug-in connectors are plugged in the mounting slot. Rotating assemblies are arranged inside the plurality of plug-in connectors, and fixing assemblies are arranged on side walls of the plurality of plug-in connectors. The rotating assemblies are arranged for a moveable barrel to rotate on the side walls of the plurality of plug-in connectors through gear shafts and annular racks engaged with the gear shafts to adjust an angle of a lamp mounted in a mounting part without affecting a decorative lighting.

Abstract: The present disclosure relates to the field of light-emitting decorative craft, and in particular, to a Christmas tree connecting rod assembly. A branch connecting rod is assembled with a branch mounting rod, and a first connecting contact assembly is electrically connected to a second connecting contact assembly. Therefore, the entire connecting rod assembly achieves circuit communication through the first connecting contact assembly and the second connecting contact assembly. In addition, all wires are routed internally, so that electrical wires are prevented from being directly arranged on the trunk of a Christmas tree, making the Christmas tree decoration more beautiful.

Abstract: The present disclosure relates to the field of light-emitting decorative craft, and in particular, to a Christmas tree connecting rod assembly. A branch connecting rod is assembled with a branch mounting rod, and a first connecting contact assembly is electrically connected to a second connecting contact assembly. Therefore, the entire connecting rod assembly achieves circuit communication through the first connecting contact assembly and the second connecting contact assembly. In addition, all wires are routed internally, so that electrical wires are prevented from being directly arranged on the trunk of a Christmas tree, making the Christmas tree decoration more beautiful.

Abstract: The present invention provides a Christmas tree. The Christmas tree includes a base, several branches, and several main rods. The main rods are fixedly connected to the base. The branches are fixedly connected to the main rods. The main rods are inserted into one another and fixed, and in this case the male terminal and the female terminal are inserted into one another and fixed. A main current cable for an external power supply is disposed on the base. The female terminal of the last main rod and the male terminal at the top end of the base are inserted into each other and fixed. A current interface for an external light source is disposed at a tail end at the male terminal in the main rod. The current interface passes through the through hole to extend outside the main rod.