Internet of Things system for safety early warning and control method

Abstract

The invention discloses an Internet of Things system for safety early warning and a control method, and relates to the technical field of Internet of Things, and the system comprises a plurality of collection units, a data center, an Internet of Things middle platform and an alarm engine which are distributed in each area of a construction site. Each acquisition unit comprises an access control acquisition device, an environment acquisition device used for acquiring the environment condition of a construction site and a tower crane acquisition device used for acquiring the working condition of a tower crane, and each acquisition unit is provided with a local network terminal used for collecting data; the data signal output end of each environment acquisition device is connected to the local network terminal of the respective acquisition unit, and the data signal output end of each tower crane acquisition device is connected to the local network terminal of the respective acquisition unit; and each local network terminal, the display terminal, the data center, the Internet of Things middle station and the alarm engine are accessed to the same network. The system provided by the invention can improve the early warning capability of the construction site.

Description

Technical Field

[0001] The present invention relates to Internet of Things and cloud platform technologies, and particularly to an Internet of Things system and a control method for security warning. Background Art

[0002] The Internet of Things middleware platform has become the core platform for intelligent Internet of Things and interconnection of all things. Alarm management of the Internet of Things platform is an important function for early warning of Internet of Things devices.

[0003] The formats of Internet of Things data transmitted by each type of Internet of Things device are different, and the required warning rules are also different. For example, tower crane data requires warning of torque percentage, and environmental data requires warning of dust, noise, etc. Facing diverse and complex Internet of Things data, traditional Internet of Things platforms need to customize and develop specific warning rules, and specific hard coding is required after the change of Internet of Things data alarm rules, which is not flexible enough; flexible and variable alarm configuration and alarm behavior trigger services can improve the data warning ability of the Internet of Things system. Summary of the Invention

[0004] Aiming at the defects existing in the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an Internet of Things system and a control method for security warning that can improve the warning ability and have flexible alarm rules.

[0005] To solve the above technical problem, an Internet of Things system for security warning provided by the present invention includes a plurality of acquisition units distributed in various areas of a construction site, and is characterized in that: it further includes a data center, an Internet of Things middleware platform and an alarm engine;

[0006] The acquisition unit includes an access control acquisition device, an environment acquisition device for acquiring the construction site environment condition, and a tower crane acquisition device for acquiring the tower crane working condition. Each acquisition unit is provided with a local network terminal for collecting data;

[0007] The environment acquisition device includes a sound level meter, a wind speed sensor and a dust detector. The data signal output ends of the respective environment acquisition devices are connected to the local network terminals of their respective acquisition units;

[0008] The tower crane acquisition device includes a weighing sensor, a height sensor, a amplitude sensor, a wind speed sensor, a geomagnetic gyro sensor and a geomagnetic inclination sensor. The data signal output ends of the respective tower crane acquisition devices are connected to the local network terminals of their respective acquisition units;

[0009] The respective local network terminals and a display terminal, a data center, an Internet of Things middleware platform and an alarm engine are connected to the same network.

[0010] A control method for the Internet of Things system for security warning provided by the present invention is characterized in that:

[0011] Each collection device is built - in with the MQTT transmission protocol. The tower crane collection device is used to collect data such as the height, amplitude, slewing angle, load weight, wind speed, and moment percentage of the tower crane; the environmental collection device is used to collect data such as noise, dust, total suspended particulates, and wind speed.

[0012] The data collected by each collection device is connected to the IoT middleware through the network via the MQTT transmission protocol, and the collection data, its virtual ID, and product key are sent to the IoT middleware. After comparison and authorization with the configured product key and device virtual ID, the MQTT client built - in in each collection device sends data to the IoT middleware in a sequential manner to complete the data collection and storage services.

[0013] The IoT system and control method for safety warning provided by the present invention utilize the device model of IoT devices to form a drag - and - drop configurable visual alarm configuration server, transmit the real - time operation data of each item device model of on - site devices through MQTT, analyze the configuration file generated by real - time visualization configuration, generate various warning information, and can flexibly change the alarm configuration to improve the warning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the IoT system for safety warning according to an embodiment of the present invention;

[0015] Figure 2 is a warning configuration framework diagram of the IoT system for safety warning according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following further describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, these embodiments do not limit the present invention. Any similar structures and their similar changes using the present invention should be included in the protection scope of the present invention. The commas in the present invention all represent the relationship of "and".

[0017] As Figure 1 - Figure 2 shown, an IoT system for safety warning provided by an embodiment of the present invention includes a plurality of collection units distributed in various areas of the construction site, and is characterized in that: it further includes a data center, an IoT middleware, and an alarm engine;

[0018] The collection unit includes an access control collection device, an environmental collection device for collecting the construction site environmental conditions, and a tower crane collection device for collecting the tower crane working conditions. Each collection unit is provided with a local network terminal for collecting data;

[0019] The environmental collection device includes a sound level meter, a wind speed sensor, and a dust detector. The data signal output ends of each environmental collection device are connected to the local network terminal of its respective collection unit;

[0020] The tower crane acquisition device includes a weighing sensor, a height sensor, a amplitude sensor, a wind speed sensor, a geomagnetic gyro sensor, and a geomagnetic inclination sensor. The data signal output ends of each tower crane acquisition device are connected to the local network terminals of their respective acquisition units;

[0021] Each of the local network terminals is connected to the display terminal, the data center, the IoT middleware, and the alarm engine through the same network.

[0022] The control method of the IoT system for safety warning in the embodiment of the present invention is as follows:

[0023] Each acquisition device is built-in with the MQTT transmission protocol. The tower crane acquisition device is used to acquire the height, amplitude, slewing angle, lifting weight, wind speed, and torque percentage data of the tower crane; the environmental acquisition device is used to acquire noise, dust, total suspended particulate matter, and wind speed data;

[0024] The data collected by each acquisition device is connected to the IoT middleware through the network via the MQTT transmission protocol, and the collected data, its virtual ID, and product key are sent to the IoT middleware. After comparison and authorization with the configured product key and device virtual ID, the MQTT client built into each acquisition device sends the data to the IoT middleware in a sequential manner to complete the data acquisition and storage services.

[0025] Configure the object model of the IoT device in the IoT middleware, and transform the objects, systems, and phenomena in the actual construction site into mathematical models or conceptual models;

[0026] Establish the object models of tower cranes, access control, and environment to form a unified standard carrier for acquisition and warning. For the attributes of the three object models: tower crane height, amplitude, slewing angle, lifting weight, wind speed, torque percentage, environmental noise, dust, total suspended particulate matter, wind speed, and access control device online status, a drag-and-drop configurable visual alarm configuration server is formed. The real-time operation data of each object model is transmitted through the MQTT protocol, and the configuration file generated by the visual configuration is analyzed in real time to generate various warning information;

[0027] First, obtain the object model of the IoT device; configure the object model of the IoT device on the page of the IoT platform. The object model obtains the operation data of its corresponding IoT device in real time through MATT (IoT communication protocol); then, configure the alarm rules of the IoT device on the page of the IoT middleware. In order to implement configurable alarm rules for multiple object models, an alarm visual configuration engine is developed. Load the preset formula nodes and behavior nodes to build all the initial nodes of the alarm visual configuration, and combine the web page class drawing canvas to implement the visual alarm configuration. Draw attribute nodes on the canvas to represent the object model data that needs to participate in the calculation in the alarm, which is obtained in real time from the IoT communication protocol. The format of the attribute nodes in the configuration is as follows:

[0028] {key: "Attribute", displayValue: "Display Name", category: "field"};

[0029] The characteristics of the attribute node include a unique output port to determine which physical model data enters the formula for calculation;

[0030] The formula node represents the calculation formula that the physical model data needs to participate in, and the format is as follows:

[0031] {key: "Code", displayValue: "Formula Name", category: "formula"};

[0032] The characteristics include two input ports to confirm the physical model data participating in the execution and a unique output port representing the output of the formula result;

[0033] The behavior node represents the behavior that the system needs to execute after the execution result of the formula node meets the conditions. The node format is as follows:

[0034] {key: "ID", displayValue: "Behavior", category: "action"};

[0035] The monitoring module monitors that the physical model obtains the operation data of its corresponding Internet of Things device within a data collection cycle. After obtaining the data, it triggers the alarm rule judgment;

[0036] After the data center receives the device physical model, it parses and triggers the alarm behavior in combination with the alarm rules configured for the physical model. The alarm rule parsing method: determine the attribute nodes, formula nodes, input nodes, and behavior nodes in the rule and the connections between the nodes for configuration. The attribute node represents the terminal data of the physical model device, and the formula node represents the calculation formula that the physical model needs to execute. According to the connection, determine the execution order of the calculation formulas to calculate the final result that meets the conditions and trigger the behavior configured for the alarm;

[0037] After the alarm rule triggers the alarm behavior, it can continue to trigger other alarm behaviors. The execution order between alarm behaviors can be determined by the connection;

[0038] The physical model configured on the Internet of Things platform communicates with its corresponding Internet of Things device through the Internet of Things communication protocol MQTT.

Claims

1. An Internet of Things system for safety warning, comprising a plurality of acquisition units distributed in various areas of a construction site, characterized in that: It also includes a data center, an IoT middleware, and an alarm engine; The acquisition unit includes an access control acquisition device, an environment acquisition device for acquiring the construction site environment conditions, and a tower crane acquisition device for acquiring the tower crane working conditions. Each acquisition unit is provided with a local network terminal for collecting data; The environment acquisition device includes a sound level meter, a wind speed sensor, and a dust detector. The data signal output ends of the respective environment acquisition devices are connected to the local network terminal of their respective acquisition units; The tower crane acquisition device includes a weighing sensor, a height sensor, a range sensor, a wind speed sensor, a geomagnetic rotation sensor, and a geomagnetic inclination sensor. The data signal output ends of the respective tower crane acquisition devices are connected to the local network terminal of their respective acquisition units; The respective local network terminals are connected to the same network as the display terminal, the data center, the IoT middleware, and the alarm engine.

2. The control method of the IoT system for safety warning according to claim 1, characterized in that: Each acquisition device is built-in with the MQTT transmission protocol. The tower crane acquisition device is used to acquire the height, range, slewing angle, lifting weight, wind speed, and moment percentage data of the tower crane; the environment acquisition device is used to acquire noise, dust, total suspended particulates, and wind speed data; The data collected by each acquisition device is connected to the IoT middleware through the network via the MQTT transmission protocol, and the collected data, its virtual ID, and product key are sent to the IoT middleware. After comparison and authorization with the configured product key and device virtual ID, the MQTT client built into each acquisition device sends the data to the IoT middleware in a sequential manner to complete the data acquisition and storage services.

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