CN110823295A - Transformer substation cable trench environment state monitoring system and monitoring method thereof - Google Patents

Abstract

The invention discloses a substation cable trench environmental state monitoring system and a monitoring method based on the Internet of Things technology, including a cable trench intelligent data acquisition system, a communication network system, an alarm system, a concentrator and a background monitoring system. The environmental data in the cable trench detected by the system is transmitted to the concentrator through the communication network system; the concentrator controls the alarm system to issue an alarm signal; the concentrator communicates with the background monitoring system to realize the remote transmission of data and the reception of remote control instructions, in real time. Monitor the operating environment data such as temperature, humidity, water level, and harmful gas concentration in the cable trench. Once an abnormal phenomenon is detected, an alarm signal will be generated, and the alarm information will be pushed to various monitoring and maintenance personnel in real time to ensure that any abnormality occurs in advance. Early warning, to eliminate the accident in the unburned trend.

Description

Substation cable trench environmental condition monitoring system and monitoring method

technical field

The invention relates to the electrical field, in particular to a substation cable trench environmental state monitoring system and a monitoring method thereof.

Background technique

The cable trench is a special channel for carrying cables, and its environmental status is closely related to the stable operation of the power grid. At present, most substation cable trench cover plates are concrete cover plates. The monitoring of cables and environmental conditions in the cable trench is realized by the daily patrol of the on-duty personnel. The monitoring method is single and cannot be directly observed.

For example, on June 18, 2016, an explosion occurred at the substation in the southern suburbs of Xi'an City, causing multiple transformers and equipment in the substation to burn down, and power outages and water outages in some surrounding areas. The main reason is that the methane concentration in the cable trench shaft exceeds the standard and the temperature is too high, which ignites the combustible gas in the cable trench and causes an explosion. On March 17, 2015, a power cable in a cable trench of a substation of China Southern Power Grid caught fire and burned, causing damage to several adjacent secondary cables in the cable trench, one optical cable was blown, and some communications were interrupted. The main reason is that the cable is broken due to construction or quality problems, the contact resistance at the broken strand increases, heat generation, and long-term overheating causes fire and burning. It is difficult to see the abnormality and hidden danger of the cable trench with the naked eye, and it is often too late when the problem is found. Therefore, there is an urgent need for a more effective way to improve the quality of the environmental condition monitoring of the cable trench and improve the monitoring level.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the shortcomings existing in the prior art, and the proposed Internet of Things substation cable trench environmental state monitoring system and its monitoring method can monitor the temperature, humidity, water level, harmful gas concentration and other operations in the cable trench in real time. Environmental data, once an abnormal phenomenon is detected, an alarm signal will be generated, and the alarm information will be pushed to various monitoring and maintenance personnel in real time to ensure that an early warning of abnormality occurs, and the accident will be eliminated in the unburned situation.

In order to achieve the above object, the present invention adopts the following technical solutions:

A substation cable trench environmental condition monitoring system based on the Internet of Things technology includes a cable trench intelligent data acquisition system, a communication network system, an alarm system, a concentrator and a background monitoring system. The cable trench functional data acquisition system detects the environment in the cable trench The data is transmitted to the concentrator through the communication network system; the concentrator controls the alarm system to issue an alarm signal; the concentrator communicates with the background monitoring system to realize the remote transmission of data and the reception of remote control instructions;

Further, the cable trench intelligent data acquisition system: including intelligent data acquisition, the intelligent data acquisition device is arranged below the cable cover, and includes an environment detection module, a data processing module, a backup storage module, a power management module and an address wake-up module; The environmental detection module is connected with the data processing module, the data processing module receives the data collected by the environmental detection module, and simultaneously controls the opening of the environmental detection module; the data processing module is respectively connected with the backup storage module and the communication network system, the The backup storage module is connected with the power management module, and the power management module is connected with the address wake-up module; the address wake-up module is connected with the communication network system, and finally transmits the positioning information to the background monitoring system through the concentrator.

Further, the environment detection module includes a water immersion sensor, a temperature and humidity sensor, and a smoke sensor, which are used to collect the liquid level, temperature and humidity or smoke concentration in the cable trench.

Further, the data processing module compares and analyzes the received environmental data in the cable trench with the normal threshold pre-stored in the backup storage module, and detects whether the detected data exceeds the threshold.

Further, when the cable trench intelligent data acquisition system detects that the liquid level, temperature and humidity or smoke concentration in the cable trench exceeds the set threshold, the communication network system transmits a signal to the concentrator, and the concentrator controls the alarm system to issue an alarm signal and sends the alarm signal. It is transmitted to the background monitoring system for communication and timely informs the relevant staff.

Further, the background monitoring system includes a computer user terminal and a mobile phone terminal.

The present invention also includes a method for monitoring the environmental state of a cable trench in a substation, including:

(1) The intelligent data acquisition system of the cable trench regularly detects whether the liquid level, temperature, humidity or smoke concentration in the cable trench exceeds the set threshold;

(2) If the set threshold is exceeded, the concentrator will transmit a signal to the concentrator through the communication network system, and the concentrator will control the alarm system to issue an alarm signal, and transmit the alarm signal to the background monitoring system for communication, and inform the relevant staff in time; If the threshold is set, the communication network system directly transmits the signal to the background monitoring system;

(3) At the same time as step (2), if the liquid level, temperature and humidity or smoke concentration in the detected cable trench exceeds the set threshold.

As a further improvement of the above technical solution:

And through the communication network system, the positioning information is transmitted to the background monitoring system.

Further, the intelligent data acquisition method of the cable trench includes:

S1. The environmental detection module regularly detects the liquid level, temperature and humidity or smoke concentration in the cable trench; transmits the data to the data processing module;

S2, the data processing module compares and analyzes the received environmental data in the cable trench and the normal threshold value pre-stored in the backup storage module, whether the detected data exceeds the threshold value; and communicates the signal with the background monitoring system through the communication network system;

S3. If the data detected in the step exceeds the threshold, the data processing module sends an instruction to the backup storage module to wake up the power management module, the power management module supplies power to the address wake-up module, and transmits the positioning information to the background monitoring system through the communication network system.

The beneficial effects of the present invention are:

The invention discloses a cable trench environmental state monitoring system based on the Internet of Things, mobile Internet and new energy power supply, which monitors the temperature, humidity, water level, harmful gas concentration and other operating environment data in the cable trench in real time. An alarm signal will be generated, and the alarm information will be actively pushed to various monitoring and maintenance personnel in real time to ensure that if there is an abnormal early warning, the accident will be eliminated in the unburned situation.

Description of drawings

1 is a schematic diagram of a substation cable trench environmental state monitoring system based on the Internet of Things technology proposed by the present invention;

FIG. 2 is a schematic diagram of the cable trench intelligent data acquisition system of the present invention.

The reference numbers in the figure are indicated as:

1. Intelligent data acquisition system for cable trench; 11. Environmental detection module; 111. Water immersion sensor; 112. Temperature and humidity sensor; 113. Smoke sensor; 12. Data processing module; 13. Backup storage module; 14. Power management module; 15. Address wake-up module; 2. Communication network system; 3. Concentrator; 4. Alarm system; 5. Background monitoring system.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

As shown in Figure 1-2, the substation cable trench environmental condition monitoring system based on the Internet of Things technology includes: cable trench intelligent data acquisition system 1, communication network system 2, alarm system 4, concentrator 3 and background monitoring system 5, cable trench The environmental data in the cable trench detected by the functional data acquisition system is transmitted to the concentrator 3 through the communication network system 2; the concentrator 3 controls the alarm system 4 to issue an alarm signal; the concentrator 3 communicates with the background monitoring system 5 to realize remote transmission of data and Receipt of remote control instructions;

Further, the cable trench intelligent data acquisition system 1 includes an intelligent data acquisition and an intelligent data acquisition device arranged under the cable cover, including an environmental detection module 11, a data processing module 12, a backup storage module 13, a power management module 14 and an address The wake-up module 15; the environment detection module 11 is connected with the data processing module 12, the data processing module 12 receives the data collected by the environment detection module 11, and controls the opening of the environment detection module 11 at the same time; the data processing module 12 is respectively connected with the backup storage module 13 and the communication network The system 2 is connected, the backup storage module 13 is connected with the power management module 14, and the power management module 14 is connected with the address wake-up module 15; the address wake-up module 15 is connected with the communication network system 2, and finally transmits the positioning information to the background monitoring system through the concentrator 3 5.

Further, the environment detection module 11 includes a water immersion sensor 111, a temperature and humidity sensor 112, and a smoke sensor 113, which are used to collect the liquid level, temperature and humidity or smoke concentration in the cable trench.

Further, the data processing module 12 compares and analyzes the received environmental data in the cable trench with the normal threshold value pre-stored in the backup storage module 13, and determines whether the detected data exceeds the threshold value.

Further, when the cable trench intelligent data acquisition system 1 detects that the liquid level, temperature and humidity or smoke concentration in the cable trench exceeds the set threshold, the communication network system 2 transmits a signal to the concentrator 3, and the concentrator 3 controls the alarm system 4 to issue an alarm signal. , and transmit the alarm signal to the background monitoring system 5 for communication, and inform the relevant staff in time.

Further, the background monitoring system 5 includes a computer user terminal and a mobile phone terminal.

The method for monitoring the environmental condition of a cable trench in a substation in this embodiment includes:

(1) The cable trench intelligent data acquisition system 1 regularly detects whether the liquid level, temperature and humidity or smoke concentration in the cable trench exceeds the set threshold;

(2) If the set threshold is exceeded, the signal is transmitted to the concentrator 3 through the communication network system 2, and the concentrator 3 controls the alarm system 4 to issue an alarm signal, and transmits the alarm signal to the background monitoring system 5 for communication to inform the relevant work in time personnel; if the set threshold is not exceeded, the communication network system 2 directly transmits the signal to the background monitoring system 5;

(3) At the same time as step (2), if the liquid level, temperature and humidity or smoke concentration in the detected cable trench exceeds the set threshold. Then the address wake-up module 15 set in the cable trench intelligent data acquisition system 1 will be woken up, and the positioning information will be transmitted to the background monitoring system 5 through the communication network system 2 .

Further, the intelligent data acquisition method of the cable trench includes:

S1. The environment detection module 11 regularly detects the liquid level, temperature and humidity or smoke concentration in the cable trench; transmits the data to the data processing module 12;

S2, the data processing module 12 compares and analyzes the environmental data in the received cable trench and the normal threshold value pre-stored in the backup storage module 13, and whether the detected data exceeds the threshold value; and communicates the signal with the background monitoring system 5 through the communication network system 2 ;

S3. If the data detected in step 2 exceeds the threshold, the data processing module 12 sends an instruction to the backup storage module 13 to wake up the power management module 14, and the power management module 14 supplies power to the address wake-up module 15, and sends the positioning information through the communication network system 2 It is sent to the background monitoring system 5 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (7)

1. Transformer substation's cable pit environmental condition monitoring system, its characterized in that includes: the system comprises a cable trench intelligent data acquisition system (1), a communication network system (2), an alarm system (4), a concentrator (3) and a background monitoring system (5), wherein environmental data in the cable trench detected by the cable trench functional data acquisition system is transmitted to the concentrator (3) through the communication network system (2); the concentrator (3) controls the alarm system (4) to send out an alarm signal; the concentrator (3) is communicated with a background monitoring system (5) to realize remote transmission of data and receiving of remote control instructions;

the cable trench intelligent data acquisition system (1): the intelligent data acquisition device is arranged below a cable cover plate and comprises an environment detection module (11), a data processing module (12), a backup storage module (13), a power management module (14) and an address awakening module (15); the environment detection module (11) is connected with the data processing module (12), and the data processing module (12) receives data acquired by the environment detection module (11) and controls the environment detection module (11) to be started; the data processing module (12) is respectively connected with a backup storage module (13) and the communication network system (2), the backup storage module (13) is connected with a power management module (14), and the power management module (14) is connected with an address awakening module (15); the address awakening module (15) is connected with the communication network system (2) and finally transmits the positioning information to the background monitoring system (5) through the concentrator (3).

2. The substation cable trench environment condition monitoring system according to claim 1, wherein the environment detection module (11) comprises a water sensor (111), a temperature and humidity sensor (112) and a smoke sensor (113) for collecting liquid level, temperature and humidity or smoke concentration in the cable trench.

3. The substation trench environment monitoring system according to claim 2, wherein the data processing module (12) compares the received environment data in the trench with a normal threshold value pre-stored in the backup storage module (13) and analyzes whether the detected data exceeds the threshold value.

4. The substation cable trench environmental condition monitoring system of claim 3, wherein: when the intelligent cable trench data acquisition system (1) detects that the liquid level, the temperature and the humidity or the smoke concentration in the cable trench exceed a set threshold value, the communication network system (2) transmits signals to the concentrator (3), the concentrator (3) controls the alarm system (4) to send out alarm signals, the alarm signals are transmitted to the background monitoring system (5) for communication, and relevant workers are informed in time.

5. The substation cable trench environment condition monitoring system according to claim 4, wherein the background monitoring system (5) comprises a computer user terminal and a mobile phone terminal.

6. A transformer substation cable trench environment state monitoring method is characterized by comprising the following steps:

(1) the intelligent cable trench data acquisition system (1) periodically detects whether the liquid level, the temperature and the humidity or the smoke concentration in the cable trench exceed a set threshold value;

(2) if the alarm signal exceeds the set threshold value, transmitting a signal to the concentrator (3) through the communication network system (2), and controlling the alarm system (4) to send an alarm signal by the concentrator (3), transmitting the alarm signal to the background monitoring system (5) for communication, and timely informing related workers; if the signal does not exceed the set threshold, the communication network system (2) directly transmits the signal to the background monitoring system (5);

(3) and (3) simultaneously with the step (2), if the liquid level, the temperature and the humidity or the smoke concentration in the cable trench are detected to exceed the set threshold value. An address awakening module (15) arranged in the cable trench intelligent data acquisition system (1) is awakened, and positioning information is transmitted to the background monitoring system (5) through the communication network system (2).

7. The method for monitoring the environmental state of the cable trench of the transformer substation of claim 6, wherein the intelligent data acquisition method of the cable trench comprises the following steps:

s1, the environment detection module (11) detects the liquid level, the temperature and the humidity or the smoke concentration in the cable trench regularly; transmitting the data to a data processing module (12);

s2, the data processing module (12) compares and analyzes the received environmental data in the cable trench with a normal threshold value prestored in the backup storage module (13), and whether the detected data exceeds the threshold value or not; the signals are communicated with a background monitoring system (5) through a communication network system (2);

and S3, if the data detected in the step (2) exceed the threshold value, the data processing module (12) sends an instruction to the backup storage module (13) to wake up the power management module (14), and the power management module (14) supplies power to the address wake-up module (15) and transmits the positioning information to the background monitoring system (5) through the communication network system (2).

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