CN116030613B - Wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance - Google Patents
Wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance Download PDFInfo
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Abstract
The invention discloses a wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, which is characterized in that field data are collected and processed through a field device terminal, the data are transmitted to an encryption time control transit system and a main control terminal through an NB-lot module, the data are further processed through the encryption time control transit system, the data are simultaneously copied through two channels in the data transmission process, the same time trigger stream data are transmitted through two channels, double redundancy backup is realized through a double network, the time delay of high failure data transmission is effectively reduced, the data throughput is improved, the influence on timeliness of important data is avoided, the capturing and tracking of positioning transmitting signals and the position calculation of the field device terminal are fed back to the main control terminal, the position of the corresponding field device terminal is accurately positioned when the data are abnormal, and the operation is convenient. Based on NB-lot communication, the encryption time control transit system is wirelessly connected with the field device terminal, and the encryption time control transit system has wide area coverage of 10-30km coverage, deep coverage of 20dB penetration loss and a power saving mode.
Description
Technical Field
The invention relates to the technical field of intelligent construction, in particular to a wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance.
Background
With the high-speed development of the Internet of things and the Internet, new ideas and technologies gradually permeate into the field of building construction, traditional construction modes are changed, intelligent construction and operation and maintenance are completed, the intelligent construction and operation and maintenance are that data information of environments, personnel, equipment, vehicles and the like of a construction site are perceived through a sensing device and are transmitted to a server through wires or wirelessly, the server analyzes the data and then combines the data to form various charts, a user can access relevant data of the server through the Internet, so that the state monitoring of the construction site or a building is realized, the environments of the construction site are complex and changeable, various operations are performed in a crossing manner, the arrangement of wires and network cables is difficult, the normal operation of the system is greatly influenced by frequent disassembly and change of the wires, the network infrastructure is poor, 4G signals in a basement, a tunnel and other parts are difficult to reach, and the requirement of data transmission through broadband signals is difficult to realize.
The patent number is CN201911160091.4, a wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, which discloses a parameter acquisition device for acquiring various data of a construction site, an LPWA data terminal encrypts the data, an LPWA data middle platform realizes data transmission, an LPWA data processor decrypts the data and processes the data and then sends the decrypted data to a cloud platform; the execution equipment of the construction site receives the processed data to execute corresponding actions, so that wireless communication of the construction site data is realized; however, in the above-mentioned technology, in the course of communication, unified data transmission is performed through LPWA communication, and the data throughput of the cloud platform is limited, and in the course of unified transmission, timeliness of some important data may sometimes be affected, so that it is inconvenient for a manager to timely handle abnormal conditions of corresponding data.
Disclosure of Invention
The invention aims to provide a wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, which is used for adopting double redundancy transmission to high-timeliness data and carrying out single-channel scattered transmission to low-timeliness data by adopting the wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, so that the delay of high-timeliness data transmission can be effectively reduced, the data throughput can be improved, and the timeliness of important data can be prevented from being influenced.
In order to solve the technical problems, the invention adopts the following technical scheme: a wide area narrowband data wireless acquisition system for intelligent construction and operation, comprising:
the field device terminal comprises a micro control chip, a sensor module, a positioning module and an NB-lot module, wherein the micro control chip, the sensor module, the positioning module and the NB-lot module are electrically connected with each other;
the main control terminal comprises a platform architecture, a 2.4G nRF24L01 wireless module, an analysis module and an instruction module, wherein the platform architecture, the 2.4G nRF24L01 wireless module, the analysis module and the instruction module are electrically connected with each other, and the main control terminal is electrically connected with the field device terminal;
the encryption time control transfer system comprises an NB-lot communication identification module, a 2.4G nRF24L01 communication identification module, a data redundancy scheduling module and an algorithm encryption module, wherein the NB-lot communication identification module, the 2.4G nRF24L01 communication identification module, the data redundancy scheduling module and the algorithm encryption module are electrically connected with each other; the field device terminal is electrically connected with the encryption time control transfer system, and the main control terminal is electrically connected with the encryption time control transfer system.
The wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance is characterized in that the sensor module and the positioning module acquire field sensing data and positioning data, and the micro-control chip sends the acquired data to the encryption time control transfer system through the NB-lot module.
According to the wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, the algorithm encryption module in the encryption time control transit system carries out algorithm encryption on received sensing data and positioning data, the data redundancy scheduling module adopts two channels to copy the encrypted data simultaneously, the same time triggering stream data is sent through the two channels, double redundancy backup is achieved through the double network, the data is divided into high-aging data and low-aging data according to the acquired data types, double redundancy transmission is adopted on the high-aging data, and single-channel scattered transmission is carried out on the low-aging data.
The wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance is characterized in that the micro control chip analyzes and processes data, the analyzed and processed data is connected to the NB-lot module through an AT instruction, and the micro control chip is also connected to other equipment in a general control site; the NB-lot module provides a global frequency band and performs wireless data communication with an NB-lot communication identification module of the encryption time control transfer system; the sensor module comprises a wind speed collector, a temperature and humidity collector, a PM2.5 detector, a stress strain sensor, a smoke sensor, an equipment operation and maintenance sensor, a personnel check-in controller and a construction quality evaluation uploading controller.
The wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, wherein the NB-lot communication identification module comprises an NB-lot communication matcher and an NB-lot communication ID identification module, the NB-lot communication matcher is in wireless connection with the NB-lot module matched with a field device terminal, and the NB-lot communication ID identification module identifies the ID code of the NB-lot module and establishes data communication after identification is successful; the 2.4G nRF24L01 communication identification module comprises a 2.4G nRF24L01 communication matcher and a 2.4G nRF24L01 communication ID identification module, the 2.4G nRF24L01 communication matcher is in wireless connection with a 2.4G nRF24L01 wireless module of the main control terminal, and the 2.4G nRF24L01 communication ID identification module identifies the ID code of the 2.4G nRF24L01 wireless module and establishes data communication after identification is successful.
The wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance comprises an algorithm encryption module, a data acquisition module and a data acquisition module, wherein the algorithm encryption module comprises a secret key control module and is based on a 3DES algorithm of an FPGA; the FPGA virtual reconstruction circuit method is utilized to reconstruct a circuit, three-level pipelining is adopted to balance with pipelining in round functions based on the DES round function operation, then DES parallel copy is designed for a plurality of operations, and three 56-bit keys and encryption and decryption control signals are provided for the 3DES through a key control module; and the data redundancy scheduling module performs dual redundancy transmission, encapsulates and verifies the encrypted data, and sends the encrypted data to the analysis module through the 2.4G nRF24L01 communication identification module.
The wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance is characterized in that the platform architecture is based on Internet of things to develop cloud platform uploading data, and comprises an application editor which provides platform data query and data flow visualization functions.
The wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance is characterized in that the platform architecture is based on Internet of things to develop cloud platform uploading data, and comprises an application editor which provides platform data query and data flow visualization functions.
The analysis module comprises a decryption module and a decompression module, wherein the decompression module is used for recognizing the type of the header data and respectively decompressing to obtain the original encrypted data; the decryption module is used for decrypting the three 56-bit keys, releasing encrypted data and transmitting the encrypted data to the platform architecture; the instruction module is used for inputting instructions, the instructions are communicated with the 2.4GnRF24L01 communication identification module through the 2.4G nRF24L01 wireless module and transmitted to the encryption time control transfer system, the instructions are communicated with the NB-lot module through the NB-lot communication identification module and transmitted to the field equipment terminal, and the micro control chip analyzes the instructions and outputs the instructions to the field construction operation and maintenance equipment operation instructions.
The wide area narrowband data wireless acquisition system for intelligent construction and operation and maintenance, the encryption time control transit system further comprises a gain amplifier, a digital-to-analog converter and an intermediate frequency signal processing circuit, the gain amplifier and the digital-to-analog converter convert radio frequency signals of the positioning module into corresponding intermediate frequency signals, the intermediate frequency signal processing circuit processes the intermediate frequency signals, captures and tracks positioning transmitting signals and calculates the positions of field equipment terminals, and feeds the positioning transmitting signals back to the master control terminal.
Compared with the prior art, the invention has the following advantages:
1. in the data transmission process, the data are duplicated simultaneously by adopting two channels, the same time triggering stream data are transmitted by the two channels, the double-network realizes double redundancy backup, the data are divided into high-aging data and low-aging data according to the types of the acquired data, the high-aging data are transmitted in a double redundancy way, and the low-aging data are transmitted in a single channel in a scattered way, so that the delay of high-failure data transmission can be effectively reduced, the data throughput is improved, and the timeliness of important data is prevented from being influenced.
2. The invention uses 2.4G nRF24L01 to connect the main control terminal and the encryption time control transfer system, the 2.4G nRF24L01 wireless module is inserted into a host of a platform framework based on USB equipment to upload data, and the USB equipment and ID code authentication can be inserted into other hosts to receive data under the necessary condition, thereby improving the flexibility.
3. The invention converts the radio frequency signal of the positioning module into the corresponding intermediate frequency signal, processes the intermediate frequency signal, completes capturing and tracking the positioning transmitting signal and calculating the position of the field device terminal, feeds back to the main control terminal, and is favorable for accurately positioning the position of the corresponding field device terminal when the data is abnormal.
4. The invention is based on NB-lot communication, and the encryption time control transfer system is in wireless connection with the field device terminal, and has wide area coverage of 10-30km coverage, deep coverage of 20dB penetration loss and power saving mode.
Drawings
FIG. 1 is a flow chart of a wide area narrowband data wireless acquisition system for intelligent building and operation in accordance with the present invention;
the invention is further described below with reference to the drawings and the detailed description.
Detailed Description
Example 1 of the present invention: a wide area narrowband data wireless acquisition system for intelligent building and operation, as shown in fig. 1, comprising the following contents:
the field device terminal comprises a micro control chip, a sensor module, a positioning module and an NB-lot module, wherein the micro control chip, the sensor module, the positioning module and the NB-lot module are electrically connected with each other;
the main control terminal comprises a platform architecture, a 2.4G nRF24L01 wireless module, an analysis module and an instruction module, wherein the platform architecture, the 2.4G nRF24L01 wireless module, the analysis module and the instruction module are electrically connected with each other, and the main control terminal is electrically connected with the field device terminal;
the encryption time control transfer system comprises an NB-lot communication identification module, a 2.4G nRF24L01 communication identification module, a data redundancy scheduling module and an algorithm encryption module, wherein the NB-lot communication identification module, the 2.4G nRF24L01 communication identification module, the data redundancy scheduling module and the algorithm encryption module are electrically connected with each other; the field device terminal is electrically connected with the encryption time control transfer system, and the main control terminal is electrically connected with the encryption time control transfer system.
In this embodiment, the sensor module and the positioning module in the field device terminal send the sensing data and the positioning data acquired in the field to the encryption time control transfer system through the NB-lot module, the algorithm encryption module in the encryption time control transfer system encrypts the sensing data and the positioning data, the data redundancy scheduling module is connected with the algorithm encryption module, the data redundancy scheduling module copies the data simultaneously through two channels, the dual-channel sends the same time triggering stream data, the dual-network realizes dual redundancy backup, and the data is divided into high-aging data and low-aging data (the aging judgment of specific data is mainly manually set) according to the category of the acquired data, the high-aging data is transmitted in a dual-redundancy single channel, and the main control terminal preferentially receives the dual-redundancy transmission. And then, an algorithm encryption module in the encryption time control transfer system carries out algorithm encryption on the received sensing data and positioning data, adopts double redundancy transmission on the high-aging data, and carries out single-channel scattered transmission on the low-aging data. The system is based on NB-lot communication, after the sensor module and the positioning module acquire field sensing data and positioning data, the micro control chip sends the acquired data to the encryption time control transit system through the NB-lot module, the encryption time control transit system is in wireless connection with a field device terminal, so that the system has wide area coverage of 10-30km coverage, deep coverage of 20dB penetration loss and a power saving mode.
Example 2 of the present invention: a wide area narrowband data wireless acquisition system for intelligent building and operation, as shown in fig. 1, comprising the following contents: the micro control chip analyzes and processes the data, and connects the analyzed and processed data to the NB-lot module through AT instructions, and the micro control chip is also connected to other devices of the general control site; the NB-lot module provides a global frequency band and performs wireless data communication with an NB-lot communication identification module of the encryption time control transfer system; the sensor module comprises a wind speed collector, a temperature and humidity collector, a PM2.5 detector, a stress strain sensor, a smoke sensor, an equipment operation and maintenance sensor, a personnel check-in controller and a construction quality evaluation uploading controller. In this embodiment, the micro-control chip adopts an STM32F103 terminal chip, processes and analyzes the data collected by the sensor module, and connects with the NB-lot module through the AT instruction for data communication connection. And the micro-control chip is also arranged for connecting the general control site construction operation and maintenance equipment. The NB-lot module adopts the BC26 module to provide the global frequency band and carries out wireless data communication with the NB-lot communication identification module of the encryption time control transfer system. The invention is based on NB-lot communication, and the encryption time control transfer system is in wireless connection with the field device terminal, and has wide area coverage of 10-30km coverage, deep coverage of 20dB penetration loss and power saving mode.
Specifically, the NB-lot communication identification module comprises an NB-lot communication matcher and an NB-lot communication ID identification module, wherein the NB-lot communication matcher is in wireless connection with the NB-lot module matched with the field device terminal, the NB-lot communication ID identification module identifies the ID code of the NB-lot module, and data communication is established after identification is successful; the 2.4G nRF24L01 communication identification module comprises a 2.4G nRF24L01 communication matcher and a 2.4G nRF24L01 communication ID identification module, the 2.4G nRF24L01 communication matcher is in wireless connection with a 2.4G nRF24L01 wireless module of the main control terminal, and the 2.4G nRF24L01 communication ID identification module identifies the ID code of the 2.4G nRF24L01 wireless module, establishes data communication after identification is successful, and is beneficial to increasing safety. The sensor module comprises a wind speed collector, a temperature and humidity collector, a PM2.5 detector, a stress-strain sensor, a smoke sensor, an equipment operation and maintenance sensor, a personnel check-in controller and a construction quality evaluation uploading controller, and the positioning module adopts a Beidou positioning module ZS1216F8BD. The method is used for collecting wind speed, temperature, humidity, PM2.5, die carrier stress, smoke condition, equipment operation and maintenance data, personnel check-in data and feedback data for manually evaluating construction quality of a construction site.
The algorithm encryption module comprises a key control module and is based on a 3DES algorithm of the FPGA; the FPGA virtual reconstruction circuit method is utilized to reconstruct a circuit, three-level pipelining is adopted to balance with pipelining in round functions based on the DES round function operation, then DES parallel copy is designed for a plurality of operations, and three 56-bit keys and encryption and decryption control signals are provided for the 3DES through a key control module; and the data redundancy scheduling module performs dual redundancy transmission, encapsulates and verifies the encrypted data, and sends the encrypted data to the analysis module through the 2.4G nRF24L01 communication identification module. In this embodiment, the algorithm encryption module adopts a 3DES algorithm based on FPGA, performs a reconstruction circuit on FPGA by using a virtual reconfigurable circuit, then designs a key generator, performs balance between three stages of pipelines and pipelines in a round function based on DES round function operation, redesigns a DES module, adopts parallel copying of multiple operation modules, and utilizes the evolutionable characteristics of the IP core of the device XC2V1500 to increase the design frequency while reducing resource consumption, and then provides three 56-bit keys and encryption and decryption control signals for 3DES by using a key control module. The invention provides three 56-bit keys and encryption and decryption control signals for the 3DES through the key control module, which is beneficial to encrypting the transmitted data and avoiding leakage. When the data redundancy quantity scheduling module performs dual redundancy transmission, the encrypted data is packaged and checked, the data category is added and summarized as a head, then the Ethernet head and the Ethernet tail are added and packaged into frames, and the frames are sent to the analysis module through the 2.4G nRF24L01 communication identification module. The invention carries out data transmission on the encrypted data according to the self-adaptive redundancy scheduling, can effectively reduce the delay of data transmission, improve the data throughput, can effectively reduce the packet loss probability in the data transmission process by packaging the encrypted data during the encrypted data transmission, has better data transmission stability and data integrity, and is convenient for the master control terminal to carry out priority identification according to the timeliness requirement of the data by adding the data category summarization as a header.
Example 3 of the present invention: a wide area narrowband data wireless acquisition system for intelligent construction and operation, comprising: the platform architecture is based on the Internet of things to develop cloud platform uploading data, and comprises an application editor, wherein the application editor provides platform data query and data flow visualization functions. Specifically, the platform architecture develops cloud platform uploading data based on the internet of things, and comprises an application editor, wherein the application editor provides platform data query and data flow visualization functions. In the embodiment, the platform architecture is based on the internet of things to develop a cloud platform as a data uploading platform, the adding mode of the platform architecture is an MQTT protocol, and the platform architecture is provided with an application editor and provides the functions of platform data query and data stream visualization. And a manager can conveniently inquire data from the platform architecture.
The analysis module comprises a decryption module and a decompression module, wherein the decompression module is used for identifying the type of the header data and respectively decompressing to obtain the original encrypted data; the decryption module is used for decrypting the three 56-bit keys, releasing encrypted data and transmitting the encrypted data to the platform architecture; the instruction module is used for inputting instructions, the instructions are communicated with the 2.4GnRF24L01 communication identification module through the 2.4G nRF24L01 wireless module and transmitted to the encryption time control transfer system, the instructions are communicated with the NB-lot module through the NB-lot communication identification module and transmitted to the field equipment terminal, and the micro control chip analyzes the instructions and outputs the instructions to the field construction operation and maintenance equipment operation instructions. Specifically, the decompression module is used for identifying the type of the header data, decompressing the header data preferentially according to the requirement of the high-timeliness data to obtain the original encrypted data, decrypting the three 56-bit keys by the decryption module, releasing the encrypted data into the original data, and uploading the original data to the platform architecture for the manager to review. The instruction module is used for inputting instructions, communicating and transmitting the instructions to the encryption time control transfer system through the 2.4G nRF24L01 wireless module and the 2.4GnRF24L01 communication identification module, and communicating and transmitting the instructions to the field device terminal through the NB-lot communication identification module and the NB-lot module. The micro control chip analyzes the instruction and outputs the instruction to the on-site construction operation and maintenance equipment to execute the instruction. In this embodiment, the decompression module is configured to identify a header data type, decompress the header data preferentially according to the requirement of the high-aging data, obtain the original encrypted data, and improve the processing efficiency of the high-aging data. The 2.4GnRF24L01 wireless module is an NRF24L01P+PA+LNA wireless module based on USB equipment, and the 2.4G nRF24L01 wireless module is inserted into a host of a platform architecture and performs wireless data communication with a 2.4G nRF24L01 communication identification module in the encryption time control module. The invention uses 2.4G nRF24L01 to connect the main control terminal and the encryption time control transfer system, the 2.4G nRF24L01 wireless module is an NRF24L01P+PA+LNA wireless module based on USB equipment, and is inserted into a host of a platform architecture for data uploading, and the USB equipment is added with ID code authentication, so that data can be received in other hosts when necessary, and the flexibility is improved.
Example 4 of the present invention: a wide area narrowband data wireless acquisition system for intelligent building and operation and maintenance, as shown in fig. 1, comprises the following contents: the encryption time-control transit system further comprises a gain amplifier, a digital-to-analog converter and an intermediate frequency signal processing circuit, wherein the gain amplifier and the digital-to-analog converter convert radio frequency signals of the positioning module into corresponding intermediate frequency signals, and the intermediate frequency signal processing circuit processes the intermediate frequency signals to complete capturing and tracking of positioning transmitting signals and position calculation of a field device terminal and feeds the positioning transmitting signals back to the main control terminal. In this embodiment, the gain amplifier and the digital-to-analog converter are used to convert the radio frequency signal of the positioning module into a corresponding intermediate frequency signal, which is beneficial to accurately positioning the position of the corresponding field device terminal when the data is abnormal.
The working principle of one embodiment of the invention is as follows: as shown in fig. 1, based on NB-lot communication, the encryption time control transfer system is wirelessly connected with the field device terminal, and the encryption time control transfer system has wide area coverage of 10-30km coverage, deep coverage of 20dB penetration loss and power saving mode, in the process of data transmission, two channels are adopted for data to be copied simultaneously, the same time trigger stream data is transmitted through the two channels, double redundancy backup is realized through the double network, the data is divided into high-aging data and low-aging data according to the type of acquired data, double redundancy transmission is adopted for the high-aging data, single-channel scattered transmission is carried out for the low-aging data, the delay of high-failure data transmission can be effectively reduced, the data throughput is improved, and the timeliness of important data is prevented from being influenced. The invention uses 2.4G nRF24L01 to connect the main control terminal and the encryption time control transfer system, the 2.4G nRF24L01 wireless module is an NRF24L01P+PA+LNA wireless module based on USB equipment, and is inserted into a host of a platform architecture for data uploading, and the USB equipment is added with ID code authentication, so that data can be received in other hosts when necessary, and the flexibility is improved. Meanwhile, the invention converts the radio frequency signal of the positioning module into a corresponding intermediate frequency signal by using the gain amplifier and the digital-to-analog converter, the intermediate frequency signal processing circuit processes the intermediate frequency signal to finish capturing and tracking the positioning transmitting signal and calculating the position of the field device terminal, and the positioning transmitting signal is fed back to the main control terminal, thereby being beneficial to accurately positioning the position of the corresponding field device terminal when the data is abnormal. Wireless connection, wide area coverage with 10-30km coverage, deep coverage with 20dB penetration loss, power saving mode.
Claims (5)
1. A wide area narrowband data wireless acquisition system for intelligent construction and operation, comprising:
the field device terminal comprises a micro control chip, a sensor module, a positioning module and an NB-lot module, wherein the micro control chip, the sensor module, the positioning module and the NB-lot module are electrically connected with each other;
the main control terminal comprises a platform architecture, a 2.4G nRF24L01 wireless module, an analysis module and an instruction module, wherein the platform architecture, the 2.4G nRF24L01 wireless module, the analysis module and the instruction module are electrically connected with each other, and the main control terminal is electrically connected with the field device terminal;
the encryption time control transfer system comprises an NB-lot communication identification module, a 2.4G nRF24L01 communication identification module, a data redundancy scheduling module and an algorithm encryption module, wherein the NB-lot communication identification module, the 2.4G nRF24L01 communication identification module, the data redundancy scheduling module and the algorithm encryption module are electrically connected with each other; the field device terminal is electrically connected with the encryption time control transfer system, and the main control terminal is electrically connected with the encryption time control transfer system;
the sensor module and the positioning module collect field sensing data and positioning data, and the micro control chip sends the collected data to the encryption time control transfer system through the NB-lot module;
the algorithm encryption module in the encryption time control transfer system carries out algorithm encryption on the received sensing data and positioning data, the data redundancy scheduling module adopts two channels to copy the encrypted data simultaneously, the same time trigger stream data is sent through two channels, double-network realizes double redundancy backup, the data is divided into high-aging data and low-aging data according to the collected data types, double redundancy transmission is adopted on the high-aging data, and single-channel scattered transmission is carried out on the low-aging data;
the micro control chip analyzes and processes the data, and connects the analyzed and processed data to the NB-lot module through AT instructions, and the micro control chip is also connected to other devices of the general control site; the NB-lot module provides a global frequency band and performs wireless data communication with an NB-lot communication identification module of the encryption time control transfer system; the sensor module comprises a wind speed collector, a temperature and humidity collector, a PM2.5 detector, a stress strain sensor, a smoke sensor, an equipment operation and maintenance sensor, a personnel check-in controller and a construction quality evaluation uploading controller;
the NB-lot communication identification module comprises an NB-lot communication matcher and an NB-lot communication ID identification module, the NB-lot communication matcher is in wireless connection with the NB-lot module matched with the field device terminal, the NB-lot communication ID identification module identifies the ID code of the NB-lot module, and data communication is established after identification is successful; the 2.4G nRF24L01 communication identification module comprises a 2.4G nRF24L01 communication matcher and a 2.4G nRF24L01 communication ID identification module, the 2.4G nRF24L01 communication matcher is in wireless connection with a 2.4G nRF24L01 wireless module of the main control terminal, and the 2.4G nRF24L01 communication ID identification module identifies the ID code of the 2.4G nRF24L01 wireless module and establishes data communication after identification is successful;
the algorithm encryption module comprises a key control module and is based on a 3DES algorithm of the FPGA; the method comprises the steps of utilizing an FPGA virtual reconstruction circuit method to reconstruct a circuit, adopting a three-stage pipeline to balance with a pipeline in a round function based on the DES round function operation, then designing a plurality of operations of DES parallel copying, and providing three 56-bit keys and encryption and decryption control signals for the 3DES through a key control module; and the data redundancy scheduling module performs dual redundancy transmission, encapsulates and verifies the encrypted data, and sends the encrypted data to the analysis module through the 2.4G nRF24L01 communication identification module.
2. The wide area narrowband data wireless acquisition system for intelligent building and operation and maintenance of claim 1 wherein the platform architecture is based on internet of things development cloud platform upload data, the platform architecture comprising an application editor that provides platform data query and data flow visualization functionality.
3. The wide area narrowband data wireless acquisition system for intelligent building and operation and maintenance according to claim 2, wherein the 2.4g nrf24l01 wireless module is inserted into a host computer of a platform architecture, and wireless data communication is performed by a 2.4g nrf24l01 communication identification module in the encryption time control module.
4. The wide area narrowband data wireless acquisition system for intelligent construction and operation according to claim 3, wherein the analysis module comprises a decryption module and a decompression module, the decompression module is used for recognizing the type of header data and respectively decompressing to obtain the original encrypted data; the decryption module is used for decrypting the three 56-bit keys, releasing encrypted data and transmitting the encrypted data to the platform architecture; the instruction module is used for inputting instructions, communicating and transmitting the instructions to the encryption time control transfer system through the 2.4G nRF24L01 wireless module and the 2.4G nRF24L01 communication identification module, communicating and transmitting the instructions to the field device terminal through the NB-lot communication identification module and the NB-lot module, and outputting the instructions to the field construction operation and maintenance device operation instructions after analyzing the instructions by the micro control chip.
5. The wide area narrowband data wireless acquisition system for intelligent building and operation and maintenance according to claim 1, wherein the encryption time-controlled transit system further comprises a gain amplifier, a digital-to-analog converter and an intermediate frequency signal processing circuit, the gain amplifier and the digital-to-analog converter convert the radio frequency signal of the positioning module into a corresponding intermediate frequency signal, and the intermediate frequency signal processing circuit processes the intermediate frequency signal to complete capturing and tracking of the positioning transmitting signal and position calculation of a field device terminal and feeds the positioning transmitting signal back to the master control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211652868.0A CN116030613B (en) | 2022-12-21 | 2022-12-21 | Wide-area narrowband data wireless acquisition system for intelligent construction and operation and maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013075297A1 (en) * | 2011-11-23 | 2013-05-30 | 湖南深拓智能设备股份有限公司 | Remote real-time monitoring system based on cloud computing |
| CN109188970A (en) * | 2018-09-05 | 2019-01-11 | 北京市燃气集团有限责任公司 | A kind of indoor gas safety monitoring wisdom terminal and method for safety monitoring |
| CN110992662A (en) * | 2019-11-23 | 2020-04-10 | 中国建筑第八工程局有限公司 | Wide-area narrow-band data wireless acquisition system for intelligent construction and operation and maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013075297A1 (en) * | 2011-11-23 | 2013-05-30 | 湖南深拓智能设备股份有限公司 | Remote real-time monitoring system based on cloud computing |
| CN109188970A (en) * | 2018-09-05 | 2019-01-11 | 北京市燃气集团有限责任公司 | A kind of indoor gas safety monitoring wisdom terminal and method for safety monitoring |
| CN110992662A (en) * | 2019-11-23 | 2020-04-10 | 中国建筑第八工程局有限公司 | Wide-area narrow-band data wireless acquisition system for intelligent construction and operation and maintenance |
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