CN202158869U - Weather observation system for overhead power transmission line - Google Patents

Abstract

The utility model provides a meteorological monitoring system for an overhead transmission line. The monitoring system includes a data acquisition module installed on a transmission line tower and used for collecting temperature, humidity, wind speed, wind direction, air pressure, radiation and rainfall, a main control module, a communication module and a data processing module, the data acquisition module and the communication module are respectively electrically connected to the main control module, and the main control module controls the communication module to communicate with the data processing module. Collect various meteorological information of the transmission line through the data acquisition module, and then transmit the collected data to the data processing module through the communication module under the control of the main control module for comprehensive analysis, so as to realize the real-time meteorological status of the overhead transmission line Monitor and judge whether to take corresponding measures to avoid accidents such as disconnection and tower collapse.

Description

Meteorological Monitoring System for Overhead Transmission Lines

technical field

The utility model belongs to the field of cable monitoring, in particular to a meteorological monitoring system for overhead power transmission lines.

Background technique

my country's meteorological environment is changeable, and ice disasters occur from time to time. The ice rain or ice and snow frozen on the transmission line will gradually form an ice shell with a cross-section approximately oval or egg-shaped on the conductor. The icing of transmission lines can only be formed in a specific natural environment. When the temperature and humidity of the air reach certain conditions, icing can be formed. When the temperature and humidity meet the conditions, the amount of icing depends on the wind speed. When there is no wind or light wind, only extremely thin ice can be formed. When the wind speed reaches a certain speed, the ice on the line will accumulate and thicken. Severe icing can lead to damage to transmission lines, or even interruption of power transmission, and sometimes under the influence of wind, the poles and towers are damaged, which seriously affects the safe operation of the power grid. It is necessary to monitor the meteorological conditions of the transmission line to obtain the meteorological information of the transmission line, and to judge whether to take corresponding measures to avoid accidents such as disconnection and tower collapse.

At present, the methods of monitoring the icing of transmission lines mainly include manual patrol monitoring. These methods have problems such as high labor intensity, untimely monitoring, and large discrepancies between monitoring results and actual conditions.

Utility model content

The utility model aims to solve the technical problem that the weather of the overhead transmission line cannot be accurately and timely monitored in the prior art, and provides a meteorological monitoring system for the overhead transmission line that can realize automatic, accurate and timely monitoring of the meteorological conditions of the transmission line .

The utility model provides a meteorological monitoring system for overhead transmission lines. The monitoring system includes a data acquisition module, a main control module, a communication module and a data processing module;

The data acquisition module is connected with the main control module, installed on the transmission line tower and used to collect temperature, humidity, wind speed, wind direction, air pressure, radiation and rainfall data;

The communication module is connected with the main control module and used for communicating with the data processing module;

The main control module is used to control the work of the data acquisition module, and control the data collected to be transmitted to the data processing module through the communication module, and the main control module is electrically connected to the data acquisition module;

The data processing module communicates with the communication module and is used for processing and analyzing the received data.

Preferably, the data collection module includes a wind direction sensor for collecting wind direction information, a wind speed sensor for collecting wind speed information, a humidity sensor for collecting humidity information, a temperature sensor for collecting temperature information, and a temperature sensor for collecting air pressure information. Air pressure sensor, radiation sensor for collecting radiation information and rain sensor for collecting rainfall information, the wind direction sensor, wind speed sensor, humidity sensor, temperature sensor, air pressure sensor, radiation sensor and rain sensor are respectively connected with the main control module electrical connection.

Preferably, the main control module adopts a single-chip microcomputer whose model is MEGA128.

Preferably, the monitoring system further includes a power module electrically connected to the main control module, and the power module supplies power to the main control module, the data acquisition module and the communication module respectively.

Preferably, the power module includes:

A controller, connected to the main control module, is used to control the power module to switch between different power generation modes;

Photovoltaic cells, connected with the controller, for generating electricity by utilizing the light energy of the sun;

a wind generator, connected to the controller, for utilizing wind power to generate electricity;

The storage battery is connected with the controller and used for storing electric energy.

Preferably, the meteorological monitoring system for overhead transmission lines further includes a FLASH expansion circuit electrically connected to the main control module, and the control chip of the expansion circuit is a chip of model AT45DB161.

Preferably, the meteorological monitoring system for overhead transmission lines further includes a reset circuit electrically connected to the main control module, for performing a reset operation on the main control module.

Preferably, the meteorological monitoring system for overhead transmission lines further includes a real-time clock circuit electrically connected to the main control module, and the control chip of the real-time clock circuit is a chip of model RX-8025T.

Preferably, the communication module uses the GPRS module to communicate with the data processing module.

The above-mentioned technical solution collects various meteorological information of the transmission line through the data acquisition module, and then transmits the collected data to the data processing module through the communication module under the control of the main control module for comprehensive analysis, so as to realize the analysis of overhead Real-time monitoring of the meteorological status of the transmission line, and judging whether to take corresponding measures to avoid accidents such as disconnection and tower collapse. The automation of meteorological monitoring is realized, and compared with the previous manual patrol monitoring, the accuracy and timing of meteorological monitoring are effectively improved, and the labor cost is also effectively reduced.

Description of drawings

Fig. 1 is a structural block diagram of an overhead transmission line meteorological monitoring system according to an embodiment of the present invention.

Fig. 2 is a structural schematic diagram of an overhead transmission line meteorological monitoring system according to an embodiment of the present invention.

Fig. 3 is a structural diagram of a main control module provided by an embodiment of the present invention.

Fig. 4 is a circuit diagram of a FLASH expansion circuit provided by an embodiment of the present invention.

Fig. 5 is a circuit diagram of a hardware watchdog circuit provided by an embodiment of the present invention.

Fig. 6 is a circuit diagram of a reset circuit provided by an embodiment of the present invention.

Fig. 7 is a circuit diagram of a real-time clock circuit provided by an embodiment of the present invention.

Fig. 8 is a circuit diagram of the power control unit of the GPRS module provided by an embodiment of the present invention.

Fig. 9 is a structural diagram of a power module provided by an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, the utility model also provides a meteorological monitoring system for overhead power transmission lines. The acquisition module 100 and the communication module 300 are respectively electrically connected to the main control module 200, the main control module 200 controls the communication module 300 to communicate with the data processing module 400, the power supply module 500 is connected to the The main control module 200 is electrically connected to supply power to the main control module 200 , the data acquisition module 100 and the communication module 300 respectively.

The data collection module 100 collects the meteorological information of the overhead power transmission line, and transmits the collected meteorological information to the main control module 200. After the main control module 200 performs processing and analysis, it transmits it to the data processing module 400 through the communication module 300 for modeling. Establishment and data processing and analysis, once the item fails, it will give an alarm prompt. Preferably, the data processing module 400 has an expert analysis system inside, and the expert analysis system can send a real-time monitoring request to the data acquisition module 100, or it can be set that the data acquisition module 100 is automatically sent to the data processing module 400 at regular intervals, and the sampling time interval It can be set by the user according to the actual situation and actual needs.

Preferably, the expert analysis system of the data processing module 400 processes and analyzes the data, and gives an alarm prompt to the data exceeding the alarm limit value. It can be sent to the relevant personnel's mobile phone by text message (can be set as multiple mobile phones of different personnel).

Preferably, the expert analysis system of the data processing module can draw graphs of ambient temperature, humidity, wind speed, wind direction, air pressure, total radiation, and rainfall conditions of the overhead transmission line wire monitoring base station in different periods, and can inquire about different periods average data etc.

Preferably, as shown in FIG. 2 , the collection module 100 includes a wind direction sensor 106 for collecting wind direction information, a wind speed sensor 105 for collecting wind speed information, a radiation sensor 102 for collecting radiation information, and a wind sensor 102 for collecting air pressure information. Air pressure sensor 101, temperature sensor 103 for collecting temperature information, humidity sensor 104 for collecting humidity information and rain sensor 107 for collecting rainfall information, the wind direction sensor 106, wind speed sensor 105, radiation sensor 102, air pressure The sensor 101 , the temperature sensor 103 , the humidity sensor 104 and the rain sensor 107 are respectively electrically connected to the main control module 200 .

Wired or wireless communication can be performed between the communication module 300 and the data processing module 400. Preferably, the communication module 300 and the data processing module 400 communicate through public wireless networks such as GPRS/CDMA, so After the main control module 200 controls various sensors to collect information, it controls the communication module 300 to transmit the collected data or image information to the data processing module 400 . Preferably, the communication module 300 is a DTU, and the DTU includes a GPRS module, through which the data communication with the data processing module 400 is realized, and the DTU has the following functions: select industrial-grade devices to meet the needs of various harsh environments ;Support dynamic IP address data center DNS domain name addressing; support fixed IP address data center; send and receive data without computer support; point-to-point, center-to-multipoint data transmission, transmission delay is generally less than one second; modular design, CPU and wireless The design method of core module separation, super expansibility; embedded PPP, TCP/IP, UDP/IP protocols; Hongdian's unique DDP protocol to ensure smooth data link; AT+ protocol; to meet the individual needs of customers; always online And a variety of trigger online modes; billing according to data traffic; data and SMS communication are mutually backed up and freely switched; support multi-party communication; TCP/IP Server/Client, UDP/IP, DDP, SMS, AT multiple communication methods; Define the data communication method; remote parameter configuration of the data center server; AT+ parameter configuration; provide a complete data center service program, which can realize data transparent forwarding; provide a function development kit for secondary development; provide complete Chinese and English DEMO source code (VB, VC, C#, Delphi, VB.net).

As shown in Figure 12, the power module 500 of the present invention includes a photovoltaic cell 502, a controller 501, a wind generator 503 and a storage battery 504, wherein the controller 501 is connected to the main control module 200 for different Switch between power generation modes.

The photovoltaic cell 502 is connected to the controller 501 for generating electricity from the sun; the wind generator 503 is connected to the controller 501 for generating electricity from the wind; the storage battery 504 is connected to the controller 501 for storing electric energy.

Due to time and geographical constraints, it is difficult to rely solely on solar or wind energy for power generation around the clock. However, solar energy and wind energy are highly complementary in terms of time and area: during the day when the light is strong, the wind is weak; when the light is weak at night, the wind energy is enhanced due to the change in surface temperature. Therefore, the embodiment of the utility model switches between solar power generation and wind power generation according to specific conditions, so as to ensure the reliability and stability of the system power supply.

As shown in FIG. 2 and FIG. 3 , in the embodiment of the present utility model, the main control module preferably adopts a single-chip microcomputer whose model is MEGA128. Among them, GPIO is a general-purpose I/O port, IIC is an IIC bus, ADC is a digital-to-analog conversion device, USART is a universal synchronous/asynchronous serial receiver/transmitter, JTAG is a JTAG interface, SDRAM is a synchronous dynamic random access memory, and SPI is an SPI bus, FLASH is a flash memory, EBI is an EBI bus, and also has a debugging interface 206.

FIG. 4 shows the FLASH expansion circuit provided by the embodiment of the present invention, and only shows the parts related to the embodiment of the present invention for convenience of description. As an example of the embodiment of the present invention, it can be implemented with a chip whose model is AT45DB161.

Fig. 5 shows the hardware watchdog circuit provided by the embodiment of the present invention, and only shows the parts related to the embodiment of the present invention for convenience of description. As an example of the embodiment of the utility model, it can be realized by a chip whose model is 2P706REN.

Fig. 8 shows the circuit of the power control unit of the GPRS module provided by the embodiment of the present invention, and only shows the parts related to the embodiment of the present invention for convenience of description. This circuit can be used to implement power management and low power consumption design requirements.

As a preferred solution, the system also includes a reset circuit 201 and a real-time clock circuit 202 electrically connected to the main control module. Figure 6 shows the reset circuit provided by the embodiment of the present invention. The part related to the embodiment of the utility model; Fig. 7 shows the real-time clock circuit provided by the embodiment of the utility model, and only shows the part related to the embodiment of the utility model for the convenience of explanation, as an example of the embodiment of the utility model , can be implemented with a chip model RX-8025T.

Through the above technical solutions, the monitoring of meteorological status information of overhead transmission lines can be realized. The system can accurately grasp the micro Meteorological conditions and environmental conditions provide scientific data analysis basis for fault judgment of transmission lines, protection of line safety, and improvement of line transmission capacity.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. The meteorological monitoring system for overhead transmission lines, characterized in that the monitoring system includes a data acquisition module, a main control module, a communication module and a data processing module; The data acquisition module is connected with the main control module, installed on the transmission line tower and used to collect temperature, humidity, wind speed, wind direction, air pressure, radiation and rainfall data; The communication module is connected with the main control module and used for communicating with the data processing module; The main control module is used to control the work of the data acquisition module, and control the data collected to be transmitted to the data processing module through the communication module, and the main control module is electrically connected to the data acquisition module; The data processing module communicates with the communication module and is used for processing and analyzing the received data. 2. The meteorological monitoring system for overhead transmission lines according to claim 1, wherein the data collection module includes a wind direction sensor for collecting wind direction information, a wind speed sensor for collecting wind speed information, and a wind sensor for collecting humidity information. Humidity sensor, a temperature sensor for collecting temperature information, an air pressure sensor for collecting air pressure information, a radiation sensor for collecting radiation information, and a rain sensor for collecting rainfall information, the wind direction sensor, wind speed sensor, humidity sensor, temperature The sensor, air pressure sensor, radiation sensor and rain sensor are respectively electrically connected to the main control module. 3. The meteorological monitoring system for overhead power transmission lines according to claim 1, wherein the main control module adopts a single-chip microcomputer whose model is MEGA128. 4. overhead power transmission line meteorological monitoring system according to claim 1, is characterized in that, described monitoring system also comprises the power supply module that is electrically connected with main control module, and described power supply module provides respectively to described main control module, data acquisition module and communication module power supply. 5. The meteorological monitoring system for overhead power transmission lines according to claim 4, wherein the power module comprises: A controller, connected to the main control module, is used to control the power module to switch between different power generation modes; Photovoltaic cells, connected with the controller, for generating electricity by utilizing the light energy of the sun; a wind generator, connected to the controller, for utilizing wind power to generate electricity; The storage battery is connected with the controller and used for storing electric energy. 6. The overhead power transmission line weather monitoring system according to claim 1, characterized in that, the overhead power transmission line weather monitoring system also includes a FLASH extension circuit electrically connected to the main control module, and the control chip of the extension circuit adopts a model It is the chip of AT45DB161. 7. The meteorological monitoring system for overhead power transmission lines according to claim 1, wherein the meteorological monitoring system for overhead power transmission lines further comprises a reset circuit electrically connected to the main control module for resetting the main control module operate. 8. The overhead power transmission line meteorological monitoring system according to claim 1, characterized in that, the overhead power transmission line meteorological monitoring system also includes a real-time clock circuit electrically connected to the main control module, and the control chip of the real-time clock circuit adopts A chip with the model number RX-8025T. 9. The meteorological monitoring system for overhead transmission lines according to claim 1, wherein the communication module communicates with the data processing module using a GPRS module.

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