CN213843837U

CN213843837U - Transformer substation box internal environment remote monitoring system based on LoRa technology

Info

Publication number: CN213843837U
Application number: CN202023330372.0U
Authority: CN
Inventors: 唐仕斌; 陈淑武; 苏培玉
Original assignee: XIAMEN FOUR-FAITH COMMUNICATION TECHNOLOGY CO LTD
Current assignee: XIAMEN FOUR-FAITH COMMUNICATION TECHNOLOGY CO LTD
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-30
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a box internal environment remote monitering system of transformer substation based on loRa technique, it includes: the system comprises at least one sensor, an LoRa terminal, an LoRa gateway, a cloud server and an application server; the sensor is suitable for being placed inside a transformer substation box body to be monitored and connected with the LoRa terminal, one end of the LoRa gateway is in communication connection with the LoRa terminal, and the other end of the LoRa gateway is in communication connection with the cloud server; and the cloud server is in communication connection with the application server. The utility model discloses can realize the automatic real-time supervision of box internal environment of transformer substation, need not artifical inspection, reduce administrative cost, can make precautionary measure in advance. Furthermore, the utility model discloses can also monitor the chamber door and do not close the condition for transformer substation is more intelligent and safety.

Description

Transformer substation box internal environment remote monitoring system based on LoRa technology

Technical Field

The utility model relates to a transformer substation field especially relates to a box internal environment remote monitering system of transformer substation based on loRa technique.

Background

A transformer substation and a power plant often have a large number of live boxes such as outdoor terminal boxes, power boxes, control cubicles, junction boxes and mechanism boxes. The live boxes almost contain all important secondary control protection equipment, and are related to the normal operation of the whole transformer substation and power plant.

Because the box is located outdoors, the electrified boxes are easy to cause the internal equipment to be affected with damp, overheated, dewed and the like due to the external environment or the abnormity of the internal ventilation and damp-removing equipment, so that the devices in the boxes and the screen cabinets are greatly influenced. For example, internal device faults caused by ventilation, damp removal or poor sealing can occur, and further, switching error tripping and protection error operation accidents happen frequently, so that the monitoring of the environment inside the live box body of the transformer substation is of great significance.

The existing monitoring mode generally depends on manual monitoring, under the condition of not opening the box, the internal environment of the box can be roughly estimated only when the alarm is given out due to overheating, supercooling, water inflow, dampness and condensation in the box, and if the parameters do not reach the alarm threshold value, the internal environment of the box can not be known completely when the box is not opened, so that certain potential safety hazard is brought.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a box internal environment remote monitering system of transformer substation based on loRa technique to solve above-mentioned problem.

The embodiment of the utility model provides a box internal environment remote monitering system of transformer substation based on loRa technique, it includes: the system comprises at least one sensor, an LoRa terminal, an LoRa gateway, a cloud server and an application server; the sensor is suitable for being placed inside a transformer substation box body to be monitored and connected with the LoRa terminal, one end of the LoRa gateway is in communication connection with the LoRa terminal, and the other end of the LoRa gateway is in communication connection with the cloud server; and the cloud server is in communication connection with the application server.

Preferably, the cloud server is an NS server; and the NS server and the application server transmit data through an MQTT protocol.

Preferably, the LoRa gateway and the NS server transmit data through a UDP protocol.

Preferably, the LoRa terminal and the LoRa gateway transmit data through an LoRa private protocol.

Preferably, the application server comprises a LoRa communication chip; the LoRa terminal comprises a LoRa radio frequency module, a power supply module, a plurality of sensor interfaces, an IO interface and a controller, and the controller is electrically connected with the LoRa radio frequency module, the plurality of sensor interfaces, the IO interface and the power supply module; the loRa radio frequency module is connected with loRa gateway communication, the loRa gateway with loRa communication chip communication is connected.

Preferably, the power module supplies power to the sensor connected to the sensor interface through the sensor interface.

Preferably, the sensor comprises at least one of:

temperature sensor, humidity transducer, adapter, smell sensor, chamber door switch sensor.

Preferably, the LoRa terminal has an over-the-air wake-up function, performs wake-up once with a predetermined time interval as a cycle, and performs CAD detection, where the CAD detection time is less than or equal to the first time, and the rest of the time is in a sleep state.

Preferably, the time interval is 2 seconds, and the first time is 10 ms.

Preferably, the system further comprises a mobile terminal, and the mobile terminal is in communication connection with the application server.

In summary, in the remote monitoring system for the internal environment of the transformer substation box based on the LoRa technology provided by the embodiment of the invention, the LoRa terminal controls the sensor to acquire data to obtain the internal environment information of the transformer substation box, and then the data is sent to the LoRa gateway, and the LoRa gateway forwards the data to the application server through the cloud server, and the internal environment of the transformer substation box can be obtained through statistical analysis. The system can realize automatic real-time monitoring of the internal environment of the transformer substation box body, manual inspection is not needed, the management cost is reduced, and preventive measures can be taken in advance. The utility model discloses can also monitor the chamber door and do not close the condition for transformer substation is intelligent and safe more.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a remote monitoring system for the internal environment of a substation box based on the LoRa technology.

Fig. 2 is a schematic structural view of the LoRa terminal of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a transformer substation box internal environment remote monitoring system based on LoRa technology, which includes: at least one sensor 10, an LoRa terminal 20, an LoRa gateway 30, a cloud server 40, and an application server 50; the sensor 10 is suitable for being placed inside a transformer substation box body to be monitored and connected with the LoRa terminal 20, one end of the LoRa gateway 30 is in communication connection with the LoRa terminal 20, and the other end of the LoRa gateway is in communication connection with the cloud server 40; the cloud server 40 is in communication connection with the application server 50.

In this embodiment, the sensor 10 may be disposed in the transformer substation box, and is configured to collect internal environmental parameters in the transformer substation box, for example, the temperature and humidity, the box door state, the sound, the box odor, the condensation, the dehumidifier operating state, and the like in the transformer substation box may be collected.

In the present embodiment, the following sensors 10 may be selected: temperature sensor, humidity transducer, adapter, smell sensor, chamber door switch sensor. The utility model discloses do not do specifically and restrict according to actual conditions.

As shown in fig. 2, in the present embodiment, the LoRa terminal 20 includes an LoRa rf module 21, a power module 22, a plurality of sensor interfaces 23, an IO interface 24, and a controller 25. The controller 25 is electrically connected with the LoRa rf module 21, the plurality of sensor interfaces 23, the IO interface 24, and the power module 22; and the LoRa radio frequency module 21 is in communication connection with the LoRa gateway 30.

In this embodiment, each sensor 10 may access the LoRa terminal 20 through the corresponding sensor interface 23, so as to send the acquired parameters to the LoRa terminal 20, and the LoRa terminal 20 sends the parameters to the LoRa gateway 30 through the LoRa radio frequency module 21. Besides providing voltage to the LoRa rf module 21, the power module 22 may also directly supply power to the sensor 10 through the sensor interface 23, so that an additional external power source is not required.

It should be noted that, in this embodiment, the LoRa terminal 20 is further added with an over-the-air wake-up function, and can perform a wake-up and CAD detection once in a predetermined time interval (e.g., 2 seconds) as a cycle, where the CAD detection time is less than or equal to 10ms, and the rest of the time is in a sleep state, and a battery is used to supply power, so that the overall energy consumption is reduced.

In this embodiment, the LoRa gateway 30 may establish a connection with the LoRa terminal 20 through an LoRa private protocol to implement data transmission. The LoRa gateway 30 is configured to receive data collected by the sensor 10 and sent by the LoRa terminal 20, and send the data to the cloud server 40.

The LoRa gateway 30 serves as an intermediate forwarding station of a private protocol, and communicates with the cloud server 40 through a UDP protocol.

In addition, the LoRa gateway 30 may also use an asynchronous wake-up protocol to wake up the asynchronously woken-up terminal (i.e., the LoRa terminal 20).

In this embodiment, the cloud server 40 may be an NS server; the NS server and the application server 50 transmit data via MQTT protocol.

The NS server (Network Service), i.e., a Network server of the private protocol, is configured to manage device information of all terminals in the private protocol Network, and is connected to the LoRa gateway 30 through the UDP protocol and connected to the application server 50 through the MQTT protocol.

Preferably, the system further comprises a mobile terminal 60, wherein the mobile terminal 60 is in communication connection with the application server 50.

In this embodiment, the application server 50 implements transmission of application layer packets of the uplink and downlink terminals with the NS server through MQTT protocol. The application server 50 may include a database for storing data, a computing service for analyzing data, an automatic alarm service for automatically making feedback on abnormal situations, a messaging service, and a gateway service.

The user can access the application server 50 through the mobile terminal 60, so as to obtain the internal environment parameter information in the specified transformer substation box.

The specific working process of the embodiment is detailed as follows:

in this embodiment, each sensor 10 is first placed in the substation box and the corresponding sensor interface 23 is accessed. During operation, the environmental parameters collected by the sensor 10 are transmitted to the LoRa terminal 20 through the sensor interface 23, and then transmitted and stored in the application server 50 through the LoRa gateway 30 and the cloud server 40. When a user needs to obtain the environmental parameters, he can access the application server 50 through the mobile terminal 60 to obtain the environmental parameters of the designated substation box.

In summary, in the remote monitoring system for the internal environment of the transformer substation box based on the LoRa technology provided by the embodiment of the present invention, the LoRa terminal 20 controls the sensor 10 to acquire data to obtain the internal environment information of the transformer substation box, and then sends the data to the LoRa gateway 30, and the LoRa gateway 30 forwards the data to the application server 50 through the cloud server 40, and the internal environment of the box can be obtained through statistical analysis. The system can realize automatic real-time monitoring of the internal environment of the transformer substation box body, manual inspection is not needed, the management cost is reduced, and preventive measures can be taken in advance. The utility model discloses can also monitor the chamber door and do not close the condition for transformer substation is intelligent and safe more.

While the invention has been described with reference to a preferred embodiment, 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 invention.

Claims

1. The utility model provides a transformer substation box internal environment remote monitering system based on loRa technique which characterized in that includes: the system comprises at least one sensor, an LoRa terminal, an LoRa gateway, a cloud server and an application server; the sensor is suitable for being placed inside a transformer substation box body to be monitored and connected with the LoRa terminal, one end of the LoRa gateway is in communication connection with the LoRa terminal, and the other end of the LoRa gateway is in communication connection with the cloud server; and the cloud server is in communication connection with the application server.

2. The transformer substation box internal environment remote monitoring system based on the LoRa technology is characterized in that the cloud server is an NS server; and the NS server and the application server transmit data through an MQTT protocol.

3. The substation box internal environment remote monitoring system based on the LoRa technology of claim 2, wherein the LoRa gateway and the NS server transmit data through a UDP protocol.

4. The transformer substation box internal environment remote monitoring system based on the LoRa technology of claim 1, wherein the LoRa terminal and the LoRa gateway transmit data through a LoRa private protocol.

5. The transformer substation box internal environment remote monitoring system based on the LoRa technology of claim 1, wherein the application server comprises a LoRa communication chip; the LoRa terminal comprises a LoRa radio frequency module, a power supply module, a plurality of sensor interfaces, an IO interface and a controller, and the controller is electrically connected with the LoRa radio frequency module, the plurality of sensor interfaces, the IO interface and the power supply module; the loRa radio frequency module is connected with loRa gateway communication, the loRa gateway with loRa communication chip communication is connected.

6. The LoRa technology based remote substation box internal environment monitoring system of claim 5, wherein the power module supplies power to the sensor connected to the sensor interface through the sensor interface.

7. The system for remotely monitoring the internal environment of a substation box based on the LoRa technology according to claim 1, wherein the sensor comprises at least one of:

8. The transformer substation box internal environment remote monitoring system based on the LoRa technology of claim 1, wherein the LoRa terminal has an air wake-up function, performs wake-up once and performs CAD detection at a predetermined time interval as a cycle, the CAD detection time is less than or equal to a first time, and the rest of the time is in a sleep state.

9. The system for remotely monitoring the internal environment of a substation box based on the LoRa technology according to claim 8, wherein the time interval is 2 seconds and the first time is 10 ms.

10. The transformer substation box internal environment remote monitoring system based on the LoRa technology of claim 1, further comprising a mobile terminal, wherein the mobile terminal is in communication connection with the application server.