Non-contact real-time high-precision pavement temperature acquisition system and method

Abstract

The invention discloses a non-contact real-time high-precision road surface temperature acquisition system and method, and the system comprises an infrared sensor array which is used for collecting the temperature information of a road surface and underground at different depths; the edge computing node is used for carrying out primary processing on the temperature information data acquired by the infrared sensor array; the wireless communication module is used for realizing data communication between the edge computing node and the master control end; and the general control terminal is used for receiving the temperature data from each edge computing node, and storing, analyzing and managing the temperature data. Compared with the prior art, the asphalt pavement temperature monitoring system has the advantages that the asphalt pavement temperature monitoring system can monitor and accurately control the temperature of the asphalt pavement and the temperature within the range of 4 cm below the asphalt pavement in real time; asphalt aging or damage to raw material gradation caused by too high temperature is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface temperature monitoring technology, and in particular to a non-contact real-time high-precision road surface temperature acquisition system and method. Background Art

[0002] In the maintenance of modern urban infrastructure, especially in the in-situ hot regeneration process, accurate temperature control is crucial for repairing asphalt pavement. In the existing technology, although there are some pavement temperature sensing systems, there are problems such as the inability to measure the underlying temperature in real time, inconsistent data sampling frequency and accuracy, and lack of unified standards for historical data integration and storage. These problems lead to inaccurate and incomplete data, affecting subsequent data analysis and application, and further affecting construction quality and road service life.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a non-contact real-time high-precision road surface temperature acquisition system and method. The system integrates multiple core functions such as the Internet of Things and edge computing, and can monitor and accurately control the temperature of the asphalt road surface and the area within 4 cm below it in real time, effectively avoiding asphalt aging or damage to the grading of raw materials caused by excessive temperature.

[0005] In order to solve the above problems, the technical solution of the present invention is a non-contact real-time high-precision road surface temperature acquisition system: comprising an infrared sensor array, the infrared sensor array is used to collect temperature information of the road surface and different depths underground;

[0006] An edge computing node, wherein the edge computing node is used to perform preliminary processing on the temperature information data collected by the infrared sensor array;

[0007] A wireless communication module, which is used to realize data communication between the edge computing node and the master control terminal;

[0008] The master control terminal is used to receive temperature data from each edge computing node and store, analyze and manage it.

[0009] Furthermore, the infrared sensor array comprises:

[0010] An infrared sensor unit, the infrared sensor unit is used to receive infrared radiation emitted from the road surface and underground and convert it into an electrical signal;

[0011] A temperature sensor calibration circuit, wherein the temperature sensor calibration circuit is used to calibrate the temperature reading of the infrared sensor;

[0012] A protective cover and a bracket, which are used to protect the infrared sensor from external physical damage and environmental influences;

[0013] A data transmission interface is connected to the edge computing node to realize real-time transmission of temperature data.

[0014] Furthermore, the infrared sensor array can adjust the installation angle and height as needed to monitor the temperature of different road surface areas and underground depths.

[0015] Furthermore, the edge computing node includes:

[0016] A processor unit, the processor unit is used to execute a data processing algorithm and perform preliminary processing on the raw temperature data;

[0017] A storage unit, the storage unit is used to temporarily store temperature information and processing results collected from the infrared sensor array;

[0018] A power management unit is used to provide a stable power supply for edge computing nodes.

[0019] Furthermore, the wireless communication module includes:

[0020] A wireless transceiver, the wireless transceiver is used to process the sending and receiving of data;

[0021] A signal enhancer, which is used to improve the transmission quality and stability of the signal;

[0022] The data encryption and verification unit is used to encrypt the transmitted data and perform identity verification and integrity check on the received data.

[0023] Furthermore, the master control terminal includes:

[0024] A data processing and analysis server, wherein the data processing and analysis server is used to analyze and predict the received temperature data;

[0025] A database management system, the database management system is used to store and manage temperature data, historical records, and equipment status;

[0026] User interface and visualization tools, which are used to provide intuitive operation interfaces and visualization charts to facilitate managers to conduct real-time monitoring and data analysis;

[0027] A network communication interface is used to communicate with edge computing nodes and other system components over the network.

[0028] Furthermore, the master control terminal is also provided with an alarm system, which can automatically trigger an alarm when it detects that the road surface temperature is abnormal or exceeds a preset threshold, and promptly notify the management personnel to take measures.

[0029] Furthermore, the method for using the non-contact real-time high-precision road surface temperature acquisition system is characterized by comprising the following steps:

[0030] Select appropriate types of infrared sensors and install infrared sensor arrays on the road surface to be monitored and at different possible depths underground;

[0031] The infrared sensor receives infrared radiation emitted by the road surface and underground, calibrates the temperature reading of the infrared sensor through the temperature sensor calibration circuit, and the edge computing node performs preliminary processing on the collected raw temperature data;

[0032] The processed temperature data is encrypted and transmitted to the master control terminal;

[0033] The master control end receives temperature data from each edge computing node for in-depth analysis and displays the temperature data to managers in the form of intuitive charts.

[0034] The advantages of the present invention compared with the prior art are:

[0035] 1. The system of the present invention collects temperature information of the road surface and different depths underground through an infrared sensor array. The edge computing node performs preliminary processing on the collected temperature information data. The wireless communication module realizes data communication between the edge computing node and the master control terminal. The master control terminal is used to receive temperature data from each edge computing node, and store, analyze and manage it, which can effectively realize real-time monitoring of the temperature of the road surface and different depths underground.

[0036] 2. The system of the present invention integrates the Internet of Things, edge computing, and multiple core functions. It can monitor and accurately control the temperature of the asphalt road surface and the temperature within 4 cm below it in real time, effectively avoiding asphalt aging or damage to the grading of raw materials due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a system schematic diagram of the present invention;

[0038] Figure 2 It is a schematic flow chart of the method of the present invention. DETAILED DESCRIPTION

[0039] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] The following is a specific implementation of a non-contact real-time high-precision road surface temperature acquisition system of the present invention, which will explain the construction of the system in detail.

[0041] 1. Detailed description and configuration of system components

[0042] Infrared sensor array

[0043] Infrared sensor unit: The most advanced thermopile or pyroelectric infrared sensors on the market are selected, which have a wide temperature measurement range, fast response speed, and high sensitivity to weak infrared radiation. Each sensor unit is strictly calibrated in the laboratory to ensure accurate temperature readings under various environmental conditions.

[0044] Temperature sensor calibration circuit: Built-in high-precision temperature sensor and calibration algorithm can correct measurement errors caused by factors such as ambient temperature changes and sensor aging in real time to ensure long-term stability and accuracy of data.

[0045] Protective cover and bracket: Made of lightweight, corrosion-resistant aluminum alloy, with waterproof and dustproof structure, the sensor can work normally even in bad weather conditions. The bracket can be adjusted in height and angle, which is convenient for flexible deployment according to monitoring needs.

[0046] Data transmission interface: It adopts the standard RS485 communication protocol to achieve stable and high-speed data transmission with edge computing nodes, and also supports remote configuration and fault diagnosis.

[0047] Edge computing nodes

[0048] Processor unit: Equipped with a high-performance ARM Cortex-M series processor, it runs customized temperature data processing algorithms, including data filtering, anomaly detection, preliminary trend analysis, etc., effectively reducing the processing burden on the master control end.

[0049] Storage unit: Built-in large-capacity flash memory for temporary storage of processed temperature data to ensure that data is not lost in the event of a network failure.

[0050] Power Management Unit: Integrated solar panels and intelligent battery management system to achieve all-weather uninterrupted power supply, while supporting low power consumption mode to extend the service life of the device.

[0051] Wireless communication module

[0052] Wireless transceiver: It adopts LoRa spread spectrum communication technology, which has the characteristics of long distance and low power consumption, and is suitable for data transmission in complex environments such as cities and suburbs.

[0053] Signal Booster: Built-in high-gain antenna and signal amplification circuit to improve signal penetration and receiving sensitivity, ensuring the stability and reliability of data transmission.

[0054] Data encryption and verification unit: Uses AES-128 encryption algorithm to encrypt transmission data, while achieving two-way identity authentication and data integrity verification to ensure secure data transmission.

[0055] Master control terminal

[0056] Data processing and analysis server: Deployed in the cloud or local data center, equipped with high-performance CPU and GPU, it runs complex data analysis algorithms, such as time series prediction and machine learning models, to conduct in-depth mining and analysis of massive temperature data.

[0057] Database management system: Use mature database systems such as MySQL or MongoDB to store temperature data, equipment status, alarm records and other information, and support efficient query, data export and backup functions.

[0058] User interface and visualization tools: Develop a web-based user interface that provides real-time temperature monitoring, historical data query, alarm notification, trend analysis and other functions. It supports access from multiple terminals such as PC, mobile phones, and tablets, making it easy for managers to monitor anytime and anywhere.

[0059] Network communication interface: Configure high-speed Ethernet or fiber optic network interface to ensure smooth communication with edge computing nodes, other external systems, and user terminals.

[0060] On the other hand, an embodiment of the present invention provides a non-contact real-time high-precision road surface temperature collection method, which specifically includes:

[0061] According to the characteristics and needs of the monitoring area, select a suitable installation location, such as highways, urban roads, bridges, tunnels and other key sections, install the infrared sensor array, and adjust it to the optimal monitoring angle.

[0062] Deploy edge computing nodes, ensure their effective connection with the sensor array, and configure necessary parameters, such as data sampling frequency, processing algorithm, etc.

[0063] Set the parameters of the data processing and analysis server at the master control end, including the rules for data reception, processing, storage and analysis, as well as alarm thresholds and notification methods.

[0064] The present invention and its implementation methods are described above, and such description is not restrictive. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design structures and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A non-contact, real-time, high-precision road surface temperature acquisition system, characterized by: include: An infrared sensor array, which is used to collect temperature information of the road surface and different depths underground; An edge computing node, wherein the edge computing node is used to perform preliminary processing on the temperature information data collected by the infrared sensor array; A wireless communication module, which is used to realize data communication between the edge computing node and the master control terminal; The master control terminal is used to receive temperature data from each edge computing node and store, analyze and manage it.

2. A non-contact real-time high-precision road surface temperature acquisition system according to claim 1, characterized in that: The infrared sensor array comprises: An infrared sensor unit, the infrared sensor unit is used to receive infrared radiation emitted from the road surface and underground and convert it into an electrical signal; A temperature sensor calibration circuit, wherein the temperature sensor calibration circuit is used to calibrate the temperature reading of the infrared sensor; A protective cover and a bracket, wherein the protective cover and the bracket are used to protect the infrared sensor from external physical damage and environmental influences; A data transmission interface is connected to the edge computing node to realize real-time transmission of temperature data.

3. The non-contact real-time high-precision road surface temperature acquisition system according to claim 1 is characterized in that: The infrared sensor array can adjust the installation angle and height as needed to monitor the temperature of different road surface areas and underground depths.

4. The non-contact real-time high-precision road surface temperature acquisition system according to claim 1 is characterized in that: The edge computing node includes: A processor unit, the processor unit is used to execute a data processing algorithm and perform preliminary processing on the raw temperature data; A storage unit, the storage unit is used to temporarily store temperature information and processing results collected from the infrared sensor array; A power management unit is used to provide a stable power supply for edge computing nodes.

5. The non-contact real-time high-precision road surface temperature acquisition system according to claim 1 is characterized in that: The wireless communication module comprises: A wireless transceiver, the wireless transceiver is used to process the sending and receiving of data; A signal enhancer, which is used to improve the transmission quality and stability of the signal; The data encryption and verification unit is used to encrypt the transmitted data and perform identity verification and integrity check on the received data.

6. The non-contact real-time high-precision road surface temperature acquisition system according to claim 1 is characterized in that: The master control terminal comprises: A data processing and analysis server, wherein the data processing and analysis server is used to analyze and predict the received temperature data; A database management system, the database management system is used to store and manage temperature data, historical records, and equipment status; User interface and visualization tools, which are used to provide intuitive operation interfaces and visualization charts to facilitate managers to conduct real-time monitoring and data analysis; A network communication interface is used to communicate with edge computing nodes and other system components over the network.

7. The non-contact real-time high-precision road surface temperature acquisition system according to claim 1 is characterized by: The master control terminal is also equipped with an alarm system, which can automatically trigger an alarm when it detects that the road surface temperature is abnormal or exceeds a preset threshold, and promptly notify the management personnel to take measures.

8. The method for using the non-contact real-time high-precision road surface temperature acquisition system according to claims 1-7 is characterized in that: The following steps are involved: Select appropriate types of infrared sensors and install infrared sensor arrays on the road surface to be monitored and at different possible depths underground; The infrared sensor receives infrared radiation emitted by the road surface and underground, calibrates the temperature reading of the infrared sensor through the temperature sensor calibration circuit, and the edge computing node performs preliminary processing on the collected raw temperature data; The processed temperature data is encrypted and transmitted to the master control terminal; The master control end receives temperature data from each edge computing node for in-depth analysis and displays the temperature data to managers in the form of intuitive charts.

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