CN215679623U - Modular intelligent monitoring node - Google Patents
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- CN215679623U CN215679623U CN202121708077.6U CN202121708077U CN215679623U CN 215679623 U CN215679623 U CN 215679623U CN 202121708077 U CN202121708077 U CN 202121708077U CN 215679623 U CN215679623 U CN 215679623U
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Abstract
The utility model discloses a modular intelligent monitoring node, which comprises a modular intelligent monitoring node, wherein the node comprises a sensor module, a wireless transmitter interface module WTIM and an application processor NCAP with network function; the sensor module is connected with the WTIM module, and the WTIM module is in wireless communication connection with the NCAP module; the WTIM comprises a data acquisition unit and a data processing unit; the data acquisition unit is provided with a universal sensor interface and a signal conditioning converter, and the universal sensor interface is respectively connected with the sensor and the signal conditioning converter. The modular intelligent monitoring node provided by the utility model can provide a universal sensor interface, realize the plug-and-play and wireless networking communication functions of the sensor, can be used for networking detection and realize the integration of measurement, management and control.
Description
Technical Field
The utility model relates to a universal modular intelligent monitoring node which can be used in the field of networked monitoring, in particular to a plug-and-play modular intelligent monitoring node.
Background
The networked monitoring is widely applied to various fields, such as civil construction and hydraulic engineering, large steel structure bridges, road culvert and tunnel engineering, mechanical engineering and heavy manufacturing equipment, important equipment of high-speed rail automobiles, ships and the like, electric power key equipment of nuclear containment vessels, water turbine shafts, steam pipelines and the like, and the networked monitoring is also widely applied to the fields of metallurgy, petroleum, chemical industry and the like. The integrated measurement, management and control can be realized through networked monitoring, and the method has important social and economic values for preventing major accidents and reducing economic loss.
In order to realize real-time networked monitoring, the system is organically integrated with an industrial control system (CCS) to realize integration of measurement, management and control, if a signal favorable for remote transmission exists in the design, the plug and play function of the sensor can be realized, and meanwhile, low-power-consumption wireless remote transmission is supported, so that time and cost can be saved in the process of networked monitoring and development. This patent will be to the demand of networking high performance monitoring and low-cost maintenance for this reason, develops a modular intelligent monitoring node, utilizes loRa to establish the bottom wireless sensor network, realizes the plug-and-play of a general sensing interface and sensor.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a modular intelligent monitoring node which can be used for important equipment such as civil construction and hydraulic engineering, large steel structure bridges, road culvert and tunnel engineering, mechanical engineering and heavy manufacturing equipment, high-speed rail automobiles, ships and the like, electric power key equipment such as nuclear power containment vessels, water turbine shafts, steam pipelines and the like, and the fields such as metallurgy, petroleum, chemical industry and the like, so that networked networking detection is realized, and further, the integration of measurement, management and control is realized.
The purpose of the utility model is realized by the following technical scheme:
a modular intelligent monitoring node, comprising: the intelligent monitoring system comprises a modular intelligent monitoring node, a monitoring system and a monitoring system, wherein the modular intelligent monitoring node comprises a sensor module 1, a wireless transmitter interface module WTIM2 and a network function application processor NCAP 10; the sensor module 1 is connected with the WTIM2, and the WTIM2 is in wireless communication connection with NCAP 10;
the WTIM2 comprises a data acquisition unit and a data processing unit; the data acquisition unit is provided with a universal sensor interface 4 and a signal conditioning converter 5, wherein the universal sensor interface 4 is respectively connected with the sensor and the signal conditioning converter 5.
One or more embodiments of the present invention may have the following advantages over the prior art:
the modular intelligent monitoring node provided by the utility model can provide a universal sensor interface, realize the plug-and-play and wireless networking communication functions of the sensor, can be used for networking detection and realize the integration of measurement, management and control.
Drawings
FIG. 1 is a schematic diagram of a modular intelligent monitoring node structure;
FIG. 2 is a block diagram of a universal sensor interface module;
fig. 3 is a block diagram of the LoRa interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to examples and drawings.
As shown in fig. 1, the modular intelligent monitoring node structure includes a sensor module 1, a wireless transmitter Interface module wtim (wireless transmitter Interface module)2, and a network-enabled Application processor ncap (network cable Application processor) 10; the sensor module 1 is connected with the WTIM2, and the WTIM2 is in wireless communication connection with the NCAP 10;
the WTIM2 comprises a data acquisition unit 3 and a data processing unit 7; the data acquisition unit is provided with a universal sensor interface 4 and a signal conditioning converter 5, the universal sensor interface 4 is respectively connected with the sensor and the signal conditioning converter 5 to complete data acquisition and data processing, and data is transmitted to the NCAP.
The data acquisition unit 3 is used for acquiring signals, conditioning the signals and converting the signals.
A plurality of sensors are arranged in the sensor module; the data acquisition unit is provided with a plurality of universal sensor interfaces and a signal conditioning converter, and each universal sensor interface is connected with a sensor one by one.
The output signals of the existing sensors are mostly current, voltage and resistance, the universal sensor interface module 4 is used for carrying out frequency conversion on all the output signals of the sensors, uniformly converting the output signals into frequency signals, sending the frequency signals to the signal conditioning and converting module 5 for processing, and carrying out signal frequency so as to facilitate networked remote monitoring; the universal sensor interface 4 comprises an impedance frequency conversion module 17, a voltage frequency conversion module 18, a stream frequency conversion module 19, and a channel selection and photoelectric coupling module 20 (shown in fig. 2).
The resistance frequency conversion module 17 performs frequency conversion on the resistance signal output by the resistance type sensor by using an oscillation module circuit composed of a 555 timer; the voltage-frequency conversion module 18 utilizes a precise V-f conversion integrated chip LM331 to carry out frequency conversion on the voltage signal output by the sensor; the current-frequency conversion module 19 is connected with a proper resistor to realize the current-voltage conversion, and the frequency conversion can be realized by utilizing the chip LM 331; the channel selection and photoelectric coupling module 20 is completed by the nonlinear optical coupler 6N 137.
The Data processing unit 7 completes Data processing, storage and communication and comprises a sensor spreadsheet teds (transducers Electronic Data sheet)6, a CPU8, a communication interface 9 and a memory 16; the CPU8 is connected to TEDS6, memory 16 and communication interface 9, respectively. Table 1 is a wireless sensing interface plug and play TEDS data structure:
TABLE 1
The NCAP comprises a communication interface 9, an embedded system 11 and a network interface 13; the communication interface 9 is in wireless communication connection with the communication interface 9 in the data processing unit; the embedded system 11 is connected with the communication interface 9 and the network interface 13 respectively. The NCAP10 is connected with an external network, completes communication protocol conversion, self-correction and plug-and-play service of a sensor, sends a monitoring task to the WTIM module 2, and remotely uses the acquired data information by loading an embedded system 11 during operation.
The embedded system 11 includes a PnP server 12, a WEB server 14, and a data corrector 15.
A LoRa interface module is designed in the communication interface 9, and the LoRa interface module adopts an SX1272 chip. The communication interface 9 is based on a LoRaWAN communication protocol, and a LoRa interface module is designed; the design of loRa module adopts MCU + wireless transceiver module's combination, and CPU core chip selects STM32L151 that has the low-power consumption characteristic, and the wireless transceiver module of loRa adopts SX1272, and loRa chip SX1272 carrier frequency is 433MHz, and 20dBm of transmitted power, operating voltage are 3.3V, have wireless function of awakening up. The CPU STM32L151 and the LoRa module chip SX1272 adopt SPI (Serial Peripheral Interface, SPI) interfaces (as shown in fig. 3).
The PnP service 12 improves the plug and play performance of the sensor by simplifying and optimizing the format and data size of TEDS; the TEDS format is shown in table 1, where original 23 data fields of Meta TEDS are reserved only 5 kinds, original 55 data fields of Channel TEDS are reserved only 10 kinds, and original 20 data fields of PHY TEDS are reserved only 8 kinds, while simplifying the definition of data fields and reducing the length of data fields.
Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. A modular intelligent monitoring node is characterized in that the node comprises a sensor module (1), a wireless transmitter interface module WTIM (2) and a network function application processor NCAP (10); the sensor module (1) is connected with the WTIM (2), and the WTIM (2) is in wireless communication connection with the NCAP (10);
the WTIM (2) comprises a data acquisition unit and a data processing unit; the data acquisition unit is provided with a universal sensor interface (4) and a signal conditioning converter (5), wherein the universal sensor interface (4) is respectively connected with the sensor and the signal conditioning converter (5).
2. The modular intelligent monitoring node of claim 1, wherein a plurality of sensors are disposed in the sensor module; the data acquisition unit is provided with a plurality of universal sensor interfaces and a signal conditioning converter, and each universal sensor interface is connected with a sensor one by one.
3. The modular intelligent monitoring node according to claim 1, characterized in that the universal sensor interface (4) comprises a frequency-rejection conversion module (17), a voltage-to-frequency conversion module (18), a stream-to-frequency conversion module (19), a channel selection and opto-electrical coupling module (20).
4. The modular smart monitoring node according to claim 1, characterized in that the data processing unit comprises a sensor spreadsheet TEDS (6), a CPU (8), a communication interface (9) and a memory (16); the CPU (8) is respectively connected with the TEDS (6), the memory (16) and the communication interface (9).
5. The modular smart monitoring node of claim 1 wherein the NCAP comprises a communication interface (9), an embedded system (11), and a network interface (13); the communication interface (9) is in wireless communication connection with the communication interface (9) in the data processing unit; the embedded system (11) is respectively connected with the communication interface (9) and the network interface (13).
6. Modular intelligent monitoring node according to claim 5, characterized in that the embedded system (11) comprises a PnP server (12), a WEB server (14) and a data corrector (15).
7. The modular intelligent monitoring node as claimed in claim 5, wherein the communication interface (9) is designed with a LoRa interface module, and the LoRa interface module adopts an SX1272 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121708077.6U CN215679623U (en) | 2021-07-26 | 2021-07-26 | Modular intelligent monitoring node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121708077.6U CN215679623U (en) | 2021-07-26 | 2021-07-26 | Modular intelligent monitoring node |
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| CN215679623U true CN215679623U (en) | 2022-01-28 |
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| CN202121708077.6U Active CN215679623U (en) | 2021-07-26 | 2021-07-26 | Modular intelligent monitoring node |
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- 2021-07-26 CN CN202121708077.6U patent/CN215679623U/en active Active
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