CN206074037U - A kind of distribution ring main unit based on Internet of Things becomes more meticulous monitoring system - Google Patents

Abstract

The utility model discloses a refined monitoring system for a power distribution ring network cabinet based on the Internet of Things, including a temperature sensor and a humidity sensor arranged in the power distribution ring network cabinet, and the power distribution ring network cabinet is provided with a door magnetic alarm , the water immersion sensor is set in the power distribution ring network cabinet, the door magnetic alarm, water immersion sensor, temperature sensor and humidity sensor are all connected to the programmable controller, the programmable controller is connected to the wireless data transmission module, and the wireless data The transmission module sends the information to the monitoring operation and maintenance display platform. The system enables users to realize remote data collection and monitoring of the environmental status in the power distribution ring network cabinet and the operation status of the equipment in the cabinet, which reduces the manual workload and improves the convenience, accuracy and real-time monitoring of the distribution network ring network cabinet. sex.

Description

A refined monitoring system for power distribution ring main unit based on the Internet of Things

technical field

The utility model relates to the technical field of power distribution ring network cabinet monitoring, in particular to a refined monitoring system for power distribution ring network cabinets based on the Internet of Things.

Background technique

In recent years, with the development of power system condition maintenance work and the construction of smart grid, the online monitoring technology of distribution network equipment has developed rapidly. The State Grid Corporation of China and China Southern Power Grid Corporation have increased their research investment in the monitoring of the operating conditions of distribution network equipment. , using advanced measurement, information, communication and control technologies, based on the centralized online monitoring of the operating environment and operating state parameters of the distribution network line, to achieve real-time monitoring of the ambient temperature and relative humidity in the distribution network ring network cabinet, Carry out status assessment and realize early warning of disasters.

At present, RMUs are prone to burnout, flooding, theft, etc. If they cannot be monitored in time, serious consequences will result. Manual inspections are time-consuming and laborious, and cannot be prevented in advance and dealt with in a timely manner afterwards.

At present, there are many monitoring contents on the running status and operating environment of the outlet joints of the ring network cabinet, mainly including one or several kinds of sensors such as temperature, water immersion, temperature and humidity, door switches, etc. Collect and monitor, display on the comprehensive display platform, and provide administrators and operation and maintenance personnel with a judgment on the overall operation status of the ring main unit.

In the way of sensors, some use bus-based sensor communication, but due to the high cost of deployment and difficult maintenance, sensor information communication is gradually developing into a wireless networking method. With the emergence of the Internet of Things technology, the concept of the Internet of Things is widely used in the distribution network monitoring, and the environment and equipment operation of the ring network cabinet are monitored in all directions in real time.

The existing technical means and application methods can basically meet the monitoring requirements of the operating status of the ring network cabinet, but the monitoring of the ring network cabinet is generally extensive, not deep enough and fine, and cannot meet more specific monitoring and management requirements.

On the one hand, the granularity of monitoring is too large to monitor and manage the operation of each joint and its internal equipment. It is difficult to find subtle hidden troubles, but these hidden troubles are often the root of larger troubles, and monitoring them is of great significance. It is an important safety warning function. If the fault characteristics reflected in the operating temperature of the outlet joint of the ring network cabinet, the ambient temperature and humidity in the cabinet, the state of water immersion, and the door switch of the ring network cabinet cannot be detected and dealt with in time, it is likely to cause the failure of the ring network cabinet chain reaction, resulting in greater losses.

CN201510573924.5 discloses a temperature and humidity monitoring method for an intelligent ring network cabinet in a power distribution station. A temperature sensor and a dehumidification device are installed in the ring network cabinet, and a thermal resistance method is used for temperature monitoring. Each temperature sensor uses a separate temperature measurement circuit. Finally, it is collected at the temperature measurement terminal, and each temperature measurement channel independently builds an acquisition and amplification circuit. Its shortcoming is: monitoring is single, and accuracy is poor.

Utility model content

The problem to be solved by the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a refined monitoring system for power distribution ring network cabinets based on the Internet of Things. Remote data collection and monitoring are realized for equipment operation status, which reduces manual workload and improves the convenience, accuracy and real-time performance of on-line monitoring of distribution network ring main units.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a refined monitoring system for power distribution ring network cabinets based on the Internet of Things, including temperature sensors and humidity sensors arranged in power distribution ring network cabinets, the The power distribution ring network cabinet is equipped with a door magnetic alarm, and a water immersion sensor is installed in the power distribution ring network cabinet. The door magnetic alarm, water immersion sensor, temperature sensor and humidity sensor are all connected to the programmable controller, and can be programmed The controller is connected to the wireless data transmission module, and the wireless data transmission module sends the information to the monitoring operation and maintenance display platform.

The wireless data transmission module transmits the information to the ONU equipment deployed on the line, and then aggregates it to the convergence controller through the OLT equipment deployed in the substation, enters the switch through the PTN equipment, and the switch connects to the monitoring operation and maintenance display platform.

The temperature sensor is arranged at the cable joint.

The water immersion sensor is arranged at the inner bottom of the power distribution ring network cabinet.

The door magnetic alarm adopts a wireless door magnetic alarm.

The temperature sensor adopts a wireless temperature sensor.

The humidity sensor is a wireless humidity sensor.

The water immersion sensor adopts a wireless water immersion sensor.

The switch of the door magnetic alarm is set in the power distribution ring network cabinet, the magnet of the door magnetic alarm is set on the door of the power distribution ring network cabinet, and the switch corresponds to the magnet.

The power distribution ring network cabinet is provided with a cabinet door waterproof sealing mechanism.

The cabinet door waterproof sealing mechanism includes an annular groove arranged in the cabinet door frame, an annular groove is provided on the peripheral side of the cabinet door, and an annular rubber ring is arranged in the annular groove, and the annular rubber ring is a hollow structure. The annular rubber ring is connected with an intake valve.

The air intake valve is connected with a gas compressor, the air pressure sensor is arranged on the air intake valve, the air pressure sensor is connected with a controller, and the controller is connected with the gas compressor.

The beneficial effects of the utility model:

(1) Install wireless temperature sensors, wireless temperature and humidity sensors, wireless door magnetic sensors, wireless water immersion sensors and other miniature wireless sensor communication devices in the ring network cabinet, and check the ambient temperature and humidity in the cabinet, water immersion status, and outlet joint temperature. Real-time monitoring and door switch status, timely detection of abnormalities such as overheating, excessive humidity, water immersion, unauthorized door opening, and high temperature of cable joints;

(2) The environmental status and equipment operating status data in the cabinet are transmitted to the wireless data transmission base station in the ring network cabinet through the 2.45G network;

(3) It is transmitted to the ONU equipment deployed on the line through the wireless data transmission base station, and then converged to the aggregation controller through the OLT equipment deployed in the substation, and enters the comprehensive data switching network (three areas) through the PTN equipment;

(4) The collected environmental temperature and humidity, water immersion status, door switch status, outlet joint temperature and other information collected in the ring network cabinet are transmitted to the main station acquisition server for data processing, conversion and fusion, and the processed monitoring data is stored in the main station. Station database server, and comprehensive display in the monitoring operation and maintenance display platform.

(5) Wireless sensor alternative: In this solution, all sensors use wireless sensor nodes, which have the advantages of free wiring and maintenance. It can also be in the form of a wired sensor probe, which has the characteristics of high reliability and high safety, but it is not as good as a wireless sensor in terms of device cost, installation and maintenance workload, and the installation position changes and the number increase or decrease is not flexible enough.

(6) Wireless communication alternative: This solution uses 2.45G network communication, which has the advantages of strong versatility, low power consumption, simple protocol, and reliable networking functions. In terms of communication, bluetooth, RFID, WiFi and other communication methods can also be used, but the requirements for installation and use conditions and power consumption are relatively high, and it is difficult to implement on small sensors.

Description of drawings

Below in conjunction with accompanying drawing, the utility model will be further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the cabinet door waterproof sealing mechanism of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Embodiment one

As shown in Figure 1, a refined monitoring system for power distribution ring network cabinets based on the Internet of Things includes a temperature sensor 11 and a humidity sensor 3 arranged in the power distribution ring network cabinet, and the power distribution ring network cabinet 1 is provided with a door Magnetic alarm 2, the water immersion sensor 4 is set in the power distribution ring network cabinet, the door magnetic alarm, water immersion sensor, temperature sensor and humidity sensor are all connected to the programmable controller, and the programmable controller is connected to the wireless data The transmission module 10, the wireless data transmission module sends information to the monitoring operation and maintenance display platform.

The wireless data transmission module transmits the information to the ONU device deployed on the line, and then aggregates it to the aggregation layer switch 8 through the OLT device 9 deployed in the substation, enters the switch through the PTN device 7, and the switch 6 connects to the monitoring operation and maintenance display platform 5.

The temperature sensor is arranged at the cable joint.

The water immersion sensor is arranged at the inner bottom of the power distribution ring network cabinet.

The door magnetic alarm adopts a wireless door magnetic alarm.

The temperature sensor adopts a wireless temperature sensor.

The humidity sensor is a wireless humidity sensor.

The water immersion sensor adopts a wireless water immersion sensor.

The switch of the door magnetic alarm is set in the power distribution ring network cabinet, the magnet of the door magnetic alarm is set on the door of the power distribution ring network cabinet, and the switch corresponds to the magnet.

The difference between embodiment two and embodiment one is:

The power distribution ring network cabinet is provided with a cabinet door waterproof sealing mechanism.

The cabinet door waterproof sealing mechanism includes an annular groove arranged in the cabinet door frame, an annular groove 16 is provided on the side of the cabinet door 15, and an annular rubber ring 12 is arranged in the annular groove, and the annular rubber ring is a hollow structure , the annular rubber ring is connected with an intake valve 13 .

The air intake valve is connected to a gas compressor, and an air pressure sensor is provided on the air intake valve. The air pressure sensor is connected to a controller, and the controller is connected to the gas compressor. The annular rubber ring is always in an inflated state, and the cabinet door can be closed The gap between the door frame and the door frame is sealed, and the sealing effect is good. The monitoring operation and maintenance display platform can be a tablet computer, or a desktop host and a monitor.

The difference between embodiment three and embodiment two is:

The upper side of the cabinet door is provided with a diversion funnel 14 connected with the annular groove, and a sponge 17 is arranged in the funnel, and the sponge absorbs insulating oil, so the oil sealing effect is good.

The preferred embodiments of the utility model are described above to illustrate the principles and applications of the utility model, but it should be understood that the utility model can be realized in other ways without departing from these principles.

Claims (9)

1. a kind of distribution ring main unit based on Internet of Things becomes more meticulous monitoring system, it is characterised in that：Including being arranged on distribution looped network Temperature sensor and humidity sensor in cabinet, the distribution ring main unit arrange door sensor alarm, set in the distribution ring main unit Put water sensor, the door sensor alarm, water sensor, temperature sensor and humidity sensor are and Programmable Logic Controller Connection, Programmable Logic Controller connection wireless data transfer module, wireless data transfer module will send information to monitor O＆M exhibition Show platform.

It is 2. as claimed in claim 1 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：Without line number Transfer information to dispose ONU equipment on the line according to transport module, it is then deployed to converge in transformer station's OLT device Poly- controller, Jing PTN devices enter switch, switch connection monitoring O＆M display platform.

It is 3. as claimed in claim 2 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The temperature Degree sensor is arranged at cable connector.

It is 4. as claimed in claim 3 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The water Leaching sensor is arranged on distribution ring main unit inner bottom part.

It is 5. as claimed in claim 4 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The door Magnetic alarm adopts wireless door magnetic alarm.

It is 6. as claimed in claim 5 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The temperature Degree sensor adopts radio temperature sensor.

It is 7. as claimed in claim 6 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：It is described wet Degree sensor adopts wireless humidity sensor.

It is 8. as claimed in claim 7 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The water Leaching sensor adopts wireless water sensor.

It is 9. as claimed in claim 8 to be become more meticulous monitoring system based on the distribution ring main unit of Internet of Things, it is characterised in that：The door The switch of magnetic alarm is arranged in distribution ring main unit, and the Magnet of the door sensor alarm is arranged in distribution ring main unit cabinet door, The switch is corresponding with Magnet.