CN219475756U - Multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring - Google Patents

Abstract

The utility model belongs to the technical field of terminal strip state monitoring, and particularly relates to a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring; the system comprises a multi-parameter fusion sensing unit and a monitoring host, wherein a coaxial cable is electrically connected between the multi-parameter fusion sensing unit and the monitoring host, the multi-parameter fusion sensing unit comprises an ultrasonic partial discharge online monitoring module and an infrared temperature measuring module, the monitoring host comprises a core processing module, a DC power module, an RS485 communication module and an Ethernet communication module, the ultrasonic partial discharge online monitoring module and the infrared temperature measuring module transmit monitoring data to the core processing module through the coaxial cable, and the core processing module is respectively electrically connected with the DC power module, the RS485 communication module and the Ethernet communication module; the utility model can realize the real-time temperature monitoring of the measured object and the perception of the acoustic wave signals generated by partial discharge, reduce the manual inspection cost and improve the production efficiency.

Description

Multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring

Technical Field

The utility model belongs to the technical field of terminal strip state monitoring, and particularly relates to a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring.

Background

The terminal strip is an insulating part for bearing a plurality of or a plurality of groups of mutually insulated terminal assemblies and fixing the supporting piece, and has the function of connecting the circuits of the on-screen equipment and the off-screen equipment to play a role in current and voltage transmission; the protection cabinet is arranged at the left side and the right side of the electric screen cabinet of the protection room, in the switch cabinet of the high-voltage room, in the outdoor main transformer terminal box and the like; the main transformer terminal box of the equipment area is used as a connecting device with extremely high use frequency in a station, and the safe and stable operation of the main transformer terminal box is also very important; however, due to the outdoor exposure throughout the year, the problem of aging and damage of the circuit caused by the moisture of the internal wiring terminals occurs sometimes; therefore, the monitoring protection of the terminal strip is necessary.

The existing terminal strip state detection mainly adopts manual visual inspection or hand-held scanning equipment for scanning detection, and the two modes are not participated by personnel, so that the consumption of human resources is huge, and the automatic production requirement cannot be met; the following problems exist in the manual inspection process: 1. the manual detection time is long, and the detection efficiency is low; 2. the manual detection accuracy is low, and the phenomenon of missed detection and false detection possibly exists; 3. the manual detection safety is low, and in the detection process, the detected box body is in an electrified working state, so that the risk of electric shock exists; therefore, the traditional detection mode relying on personnel operation greatly increases the production cost of enterprises and seriously hinders the production efficiency of the enterprises, and the requirements of the enterprises on efficient and automatic production cannot be met.

The traditional infrared temperature measurement sensor and the ultrasonic partial discharge sensor can only perform single acquisition and processing on the temperature of electrical equipment or acoustic signals generated by partial discharge, the state sensing of the monitored object is not comprehensive enough, and the single sensor has respective defects no matter the infrared temperature measurement sensor or the ultrasonic partial discharge sensor, and cannot meet the field requirements in percentage; therefore, the multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring is necessary for reducing manual inspection cost and improving production efficiency.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the multi-parameter sensing terminal integrating the infrared temperature measurement and the ultrasonic partial discharge monitoring, which integrates the infrared temperature measurement function and the acoustic signal capturing function into one package, can realize the real-time temperature monitoring of a measured object and the sensing of acoustic signals generated by partial discharge at the same time, reduces the manual inspection cost and improves the production efficiency.

The purpose of the utility model is realized in the following way: the utility model provides a fuse infrared temperature measurement and ultrasonic wave partial discharge monitoring's multi-parameter perception terminal, it includes multi-parameter fusion perception unit and monitoring host, multi-parameter fusion perception unit with be connected with the RS485 circuit between the monitoring host, multi-parameter fusion perception unit is including ultrasonic wave partial discharge on-line monitoring module and infrared temperature measurement module, the monitoring host includes core processing module, DC power module, RS485 communication module and ethernet communication module, ultrasonic wave partial discharge on-line monitoring module with infrared temperature measurement module passes through the RS485 circuit will monitor data transmission for core processing module, core processing module respectively with DC power module RS485 communication module with ethernet communication module electricity is connected, the core processing module passes through the RS485 communication module with multi-parameter fusion perception unit ultrasonic wave partial discharge on-line monitoring module with infrared temperature measurement module carries out data transmission, the core processing module passes through ethernet communication module carries out the network connection with external equipment, DC power module is for the core processing module RS485 communication module and the ethernet communication module.

The multi-parameter fusion sensing unit is internally provided with a monitoring data communication unit corresponding to the RS485 communication module in the monitoring host, and the monitoring data communication unit collects monitoring data of the ultrasonic partial discharge on-line monitoring module and the infrared temperature measuring module and performs data transmission with the RS485 communication module in the monitoring host through RS485 communication.

The core processing module of the monitoring host is provided with an RS485 communication interface and an Ethernet communication interface, the RS485 line is connected with the Ethernet communication interface, and the monitoring host is connected with external equipment through the Ethernet communication interface in a network mode.

The infrared temperature measurement module adopts an infrared thermal imaging temperature measurement module, and an uncooled infrared focal plane detector is arranged in the infrared thermal imaging temperature measurement module, so that the industrial temperature measurement range of the uncooled infrared focal plane detector is: -20 ℃ to +150 ℃, industrial temperature measurement precision: the temperature of the environment is minus 20 ℃ to plus 60 ℃ which is minus 3 ℃ or minus 3% of the reading, and the data output is MIPI type: LVCMOS & MIPI2lane.

The ultrasonic partial discharge on-line monitoring module comprises an ultrasonic partial discharge sensor, and the detection frequency range of the ultrasonic partial discharge on-line monitoring module is as follows: 300-3000 MHz, the sensitivity of the sensor is within the frequency range of 300-1500 MHz, the minimum sensitivity exceeding 80% frequency range is less than or equal to 3mV/m, and the average sensitivity within the ultra-high frequency full frequency (300-3000 MHz) range is more than or equal to 15mm.

Communication speed of the downlink channel RS485 communication of the core processing module defaults to 9600bps and supports 115200bps to the maximum; the uplink channel of the core processing module adopts an RJ4 network port 5, the communication rate is 10M/100M, the supported modes comprise TCPCLIENT/TCPServer and UDPCLIENT/UDPServer, and the connection quantity is as follows: 1-path Socket in TCPCLIENT mode and 16-path Socket in TCPServer mode; the communication protocol adopted by the uplink channel of the core processing module comprises TCPCLIENT/ModbusTCP/MQTT/HTTP.

The DC power supply module is an AC-DC power supply module, the output voltage is 24V, the rated current is 1.5A, the current range is 0-1.5A, and the DC power supply module adopts overload protection with 150% of rated power and overvoltage protection with VH1 being more than 175%.

The utility model has the beneficial effects that: the utility model discloses a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring, which comprises an ultrasonic partial discharge on-line monitoring module and an infrared temperature measurement module, wherein a monitoring host comprises a core processing module, a DC power module, an RS485 communication module and an Ethernet communication module, the core processing module is respectively and electrically connected with the DC power module, the RS485 communication module and the Ethernet communication module, the core processing module performs data transmission with the ultrasonic partial discharge on-line monitoring module and the infrared temperature measurement module of the multi-parameter fusion sensing unit through the RS485 communication module, and is connected with external equipment through the Ethernet communication module, and the DC power module provides a direct current power supply for the core processing module, the RS485 communication module and the Ethernet communication module of the monitoring host; the infrared temperature measuring module utilizes incident infrared radiation to cause temperature change of the sensor, so that relevant physical parameters such as voltage and the like are correspondingly changed, the infrared radiation absorbed by the infrared sensor is determined by measuring the change of the relevant physical parameters, and a corresponding temperature value is output; when partial discharge occurs, molecular motion in the discharge area is aggravated, and severe impact is generated, so that pressure is macroscopically generated, and mechanical vibration, namely sound wave, is caused; the ultrasonic partial discharge on-line monitoring module converts mechanical vibration generated by an acoustic source on the surface of a detected object into an electric signal, and performs secondary treatment on the electric signal through an amplifying circuit to obtain corresponding sound intensity; finally, the core processing module is used for collecting and outputting corresponding physical quantity; the infrared temperature measurement and the partial discharge ultrasonic complement each other, and the sensor integrating the infrared temperature measurement and the partial discharge ultrasonic can more comprehensively meet the field monitoring conditions, solve the problems of low monitoring accuracy and the like caused by the defects of single equipment, and meanwhile, form a cloud edge end cooperative logic architecture by depending on the 4G base station and the mature object pipe platform; according to the multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring, the infrared temperature measurement function and the sound wave signal capturing function are integrated in the same package, so that the sensing of sound wave signals generated by real-time temperature monitoring and partial discharge of a measured object can be realized, the manual inspection cost is reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a multi-parameter sensing terminal physical connection integrating infrared temperature measurement and ultrasonic partial discharge monitoring.

Fig. 2 is a schematic diagram of an internal architecture of a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring.

FIG. 3 is a schematic diagram showing the connection of a multi-parameter sensing terminal module integrating infrared temperature measurement and ultrasonic partial discharge monitoring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-3, a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring comprises a multi-parameter fusion sensing unit and a monitoring host, wherein an RS485 line is electrically connected between the multi-parameter fusion sensing unit and the monitoring host, the multi-parameter fusion sensing unit comprises an ultrasonic partial discharge online monitoring module and an infrared temperature measurement module, the monitoring host comprises a core processing module, a DC power supply module, an RS485 communication module and an Ethernet communication module, the ultrasonic partial discharge online monitoring module and the infrared temperature measurement module transmit monitoring data to the core processing module through the RS485 line, the core processing module is respectively electrically connected with the DC power supply module, the RS485 communication module and the Ethernet communication module, the core processing module carries out data transmission with the ultrasonic partial discharge online monitoring module and the infrared temperature measurement module of the multi-parameter fusion sensing unit through the RS communication module, the core processing module carries out network connection with external equipment through the Ethernet communication module, and the DC power supply module provides direct current communication for the core processing module, the RS485 communication module and the Ethernet communication module.

The infrared temperature measuring module utilizes incident infrared radiation to cause temperature change of the sensor, so that relevant physical parameters such as voltage and the like are correspondingly changed, the infrared radiation absorbed by the infrared sensor is determined by measuring the change of the relevant physical parameters, and a corresponding temperature value is output; when a partial discharge occurs, the molecular motion in the discharge region is exacerbated, creating a sharp impact, which macroscopically creates a pressure, causing mechanical vibration, i.e., acoustic waves. The ultrasonic partial discharge on-line monitoring module converts mechanical vibration generated by an acoustic source on the surface of the detected object into an electric signal, carries out secondary treatment on the electric signal through an amplifying circuit, and calculates the corresponding sound intensity. And finally, after being acquired by the core processing module, the physical quantity is output by means of algorithm calculation.

In order to achieve a better effect, a monitoring data communication unit corresponding to the RS485 communication module in the monitoring host is arranged in the multi-parameter fusion sensing unit, and the monitoring data communication unit collects monitoring data of the ultrasonic partial discharge on-line monitoring module and the infrared temperature measurement module and performs data transmission with the RS485 communication module in the monitoring host through RS485 communication.

For better effect, be provided with RS485 communication interface and ethernet communication interface on the core processing module of monitoring host computer, the RS485 circuit is connected through the RS485 communication interface, the monitoring host computer passes through ethernet communication interface carries out the internet access with external equipment.

For better effect, infrared temperature measurement module adopts infrared thermal imaging temperature measurement module, infrared thermal imaging temperature measurement module is inside to be provided with uncooled infrared focal plane detector, its industry temperature measurement scope: -20 ℃ to +150 ℃, industrial temperature measurement precision: the temperature of the environment is minus 20 ℃ to plus 60 ℃ which is minus 3 ℃ or minus 3% of the reading, and the data output is MIPI type: LVCMOS & MIPI2lane; the infrared temperature measurement module can adopt an ELF3 small area array micro infrared thermal imaging temperature measurement module, and specific parameters are shown in the following table 1.

TABLE 1

For better effect, the ultrasonic partial discharge on-line monitoring module comprises an ultrasonic partial discharge sensor, and the detection frequency range of the ultrasonic partial discharge on-line monitoring module is as follows: 300-3000 MHz, the sensitivity of the sensor is within the frequency range of 300-1500 MHz, the minimum sensitivity exceeding 80% frequency range is less than or equal to 3mV/m, and the average sensitivity within the ultra-high frequency full frequency (300-3000 MHz) range is more than or equal to 15mm; the ultrasonic partial discharge on-line monitoring module can adopt a GZZN-AE ultrasonic partial discharge sensor, and specific parameters are shown in the following table 2.

TABLE 2

For better effect, the communication rate of the downlink channel RS485 communication of the core processing module defaults to 9600bps and supports 115200bps to the maximum; the uplink channel of the core processing module adopts an RJ4 network port 5, the communication rate is 10M/100M, the supported modes comprise TCPCLIENT/TCPServer and UDPCLIENT/UDPServer, and the connection quantity is as follows: 1-path Socket in TCPCLIENT mode and 16-path Socket in TCPServer mode; the communication protocol adopted by the uplink channel of the core processing module comprises TCPCLIENT/ModbusTCP/MQTT/HTTP; the core processing module can adopt XG-GW-4G, and specific parameters are shown in the following table 3.

TABLE 3 Table 3

In order to achieve a better effect, the DC power supply module is an AC-DC power supply module, the output voltage is 24V, the rated current is 1.5A, the current range is 0-1.5A, and the DC power supply module adopts overload protection with 150% rated power and overvoltage protection with VH1 being more than 175%; the DC power supply module can adopt an AC-DC power supply module, and specific parameters are shown in the following table 4; the multi-parameter fusion sensing unit is internally provided with a direct current power supply module, the direct current power supply module is powered by a lithium battery, the capacity of the direct current power supply module is 1200mah, and the output voltage is 3.6V.

TABLE 4 Table 4

The utility model discloses a multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring, which comprises an ultrasonic partial discharge on-line monitoring module and an infrared temperature measurement module, wherein a monitoring host comprises a core processing module, a DC power module, an RS485 communication module and an Ethernet communication module, the core processing module is respectively and electrically connected with the DC power module, the RS485 communication module and the Ethernet communication module, the core processing module performs data transmission with the ultrasonic partial discharge on-line monitoring module and the infrared temperature measurement module of the multi-parameter fusion sensing unit through the RS485 communication module, and is connected with external equipment through the Ethernet communication module, and the DC power module provides a direct current power supply for the core processing module, the RS485 communication module and the Ethernet communication module of the monitoring host; the infrared temperature measuring module utilizes incident infrared radiation to cause temperature change of the sensor, so that relevant physical parameters such as voltage and the like are correspondingly changed, the infrared radiation absorbed by the infrared sensor is determined by measuring the change of the relevant physical parameters, and a corresponding temperature value is output; when partial discharge occurs, molecular motion in the discharge area is aggravated, and severe impact is generated, so that pressure is macroscopically generated, and mechanical vibration, namely sound wave, is caused; the ultrasonic partial discharge on-line monitoring module converts mechanical vibration generated by an acoustic source on the surface of a detected object into an electric signal, and performs secondary treatment on the electric signal through an amplifying circuit to obtain corresponding sound intensity; finally, the core processing module is used for collecting and outputting corresponding physical quantity; the infrared temperature measurement and the partial discharge ultrasonic complement each other, and the sensor integrating the infrared temperature measurement and the partial discharge ultrasonic can more comprehensively meet the field monitoring conditions, solve the problems of low monitoring accuracy and the like caused by the defects of single equipment, and meanwhile, form a cloud edge end cooperative logic architecture by depending on the 4G base station and the mature object pipe platform; according to the multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring, the infrared temperature measurement function and the sound wave signal capturing function are integrated in the same package, so that the sensing of sound wave signals generated by real-time temperature monitoring and partial discharge of a measured object can be realized, the manual inspection cost is reduced, and the production efficiency is improved.

Claims (5)

1. The utility model provides a merge multi-parameter perception terminal of infrared temperature measurement and ultrasonic wave partial discharge monitoring, it includes that multi-parameter fuses perception unit and monitoring host computer, its characterized in that: the multi-parameter fusion sensing unit is electrically connected with the monitoring host through an RS485 line, the multi-parameter fusion sensing unit comprises an ultrasonic partial discharge online monitoring module and an infrared temperature measuring module, the monitoring host comprises a core processing module, a DC power supply module, an RS485 communication module and an Ethernet communication module, the ultrasonic partial discharge online monitoring module and the infrared temperature measuring module transmit monitoring data to the core processing module through the RS485 line, the core processing module is respectively electrically connected with the DC power supply module, the RS485 communication module and the Ethernet communication module, the core processing module carries out data transmission with the ultrasonic partial discharge online monitoring module and the infrared temperature measuring module of the multi-parameter fusion sensing unit through the RS485 communication module, the core processing module carries out network connection with external equipment through the Ethernet communication module, and the DC power supply module provides direct current power for the core processing module, the RS485 communication module and the Ethernet communication module of the monitoring host;

the multi-parameter fusion sensing unit is internally provided with a monitoring data communication unit corresponding to the RS485 communication module in the monitoring host, and the monitoring data communication unit collects monitoring data of the ultrasonic partial discharge on-line monitoring module and the infrared temperature measurement module and performs data transmission with the RS485 communication module in the monitoring host through RS485 communication;

the core processing module of the monitoring host is provided with an RS485 communication interface and an Ethernet communication interface, the RS485 line is connected with the Ethernet communication interface, and the monitoring host is connected with external equipment through the Ethernet communication interface in a network mode.

2. The multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring as claimed in claim 1, wherein the multi-parameter sensing terminal is characterized in that: the infrared temperature measurement module adopts an infrared thermal imaging temperature measurement module, and an uncooled infrared focal plane detector is arranged in the infrared thermal imaging temperature measurement module, so that the industrial temperature measurement range of the uncooled infrared focal plane detector is: -20 ℃ to +150 ℃, industrial temperature measurement precision: the temperature of the environment is minus 20 ℃ to plus 60 ℃ or minus 3% of the reading, and the data output is MIPI: LVCMOS & MIPI2lane.

3. The multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring as claimed in claim 1, wherein the multi-parameter sensing terminal is characterized in that: the ultrasonic partial discharge on-line monitoring module comprises an ultrasonic partial discharge sensor, and the detection frequency range of the ultrasonic partial discharge on-line monitoring module is as follows: 300-3000 MHz, the sensitivity of the sensor is within the frequency range of 300-1500 MHz, the minimum sensitivity exceeding 80% frequency range is less than or equal to 3mV/m, and the average sensitivity within the ultra-high frequency full frequency (300-3000 MHz) range is more than or equal to 15mm.

4. The multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring as claimed in claim 1, wherein the multi-parameter sensing terminal is characterized in that: communication speed of the downlink channel RS485 communication of the core processing module defaults to 9600bps and supports 115200bps to the maximum; the uplink channel of the core processing module adopts an RJ4 network port 5, the communication rate is 10M/100M, the supported modes comprise TCPCLIENT/TCPServer and UDPCLIENT/UDPServer, and the connection quantity is as follows: 1-path Socket in TCPCLIENT mode and 16-path Socket in TCPServer mode; the communication protocol adopted by the uplink channel of the core processing module comprises TCPCLIENT/ModbusTCP/MQTT/HTTP.

5. The multi-parameter sensing terminal integrating infrared temperature measurement and ultrasonic partial discharge monitoring as claimed in claim 1, wherein the multi-parameter sensing terminal is characterized in that: the DC power supply module is an AC-DC power supply module, the output voltage is 24V, the rated current is 1.5A, the current range is 0-1.5A, and the DC power supply module adopts overload protection with 150% of rated power and overvoltage protection with VH1 being more than 175%.