CN214123134U

CN214123134U - Centralized processing unit for lightning arrester monitoring data

Info

Publication number: CN214123134U
Application number: CN202023294778.8U
Authority: CN
Inventors: 尚雪嵩; 黎明
Original assignee: Nanjing Sindo Technology Co ltd
Current assignee: Nanjing Sindo Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-03
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a centralized processing unit for lightning arrester monitoring data, which comprises an ARM processor, a LoRa communication module, a Bluetooth communication module, an RS485 communication module, a data storage module, a clock module and a power module; the LoRa communication module, the Bluetooth communication module, the RS485 communication module, the data storage module, the clock module and the power supply module are all connected with the ARM processor; the power supply module comprises a wide-range DC-DC voltage stabilization integrated circuit, a power supply control circuit and a watchdog circuit; the DCU is in communication connection with the lightning arrester monitoring device through a Bluetooth communication module; the DCU is in communication connection with the concentrator through the LoRa communication module; the data of the lightning arrester monitoring device is sent to the ARM processor of the DCU through the Bluetooth communication module and stored in the data storage module through the ARM processor. The utility model discloses have characteristics such as receiving, save arrester monitoring devices real-time supervision data, job stabilization are reliable, provide technical support to the arrester monitoring for the power supply department.

Description

Centralized processing unit for lightning arrester monitoring data

Technical Field

The utility model relates to a centralized processing unit (centralized processing unit is called "DCU" for short) for arrester monitoring data belongs to arrester monitoring devices technical field.

Background

The electric power is an engine operated by national economy, and the safe operation of a power grid is related to the national economy life and the happiness index of the lives of common people. The power supply department has high requirements on the safe and reliable operation of the power supply of the power grid, and the real-time monitoring system of the lightning arrester provides powerful technical support for the power supply department.

The existing lightning arrester monitoring has the following problems:

1) the dial-type lightning arrester monitoring device needs manual work to check and read the meter on site, so that the workload of maintenance workers is increased, and abnormal conditions of the lightning arrester cannot be found in time;

2) the lightning arrester is arranged near a transformer substation and a high-voltage line, the electromagnetic field interference is serious, and the long-time stable and reliable operation is difficult;

3) the monitoring device has no power supply, so that the monitoring device is difficult to work normally;

4) and searching historical data.

Disclosure of Invention

Utility model purpose: problem and not enough to exist among the prior art, the utility model provides a DCU for arrester monitoring data. In order to solve the problem of on-site meter reading, the recorded information is reported to the concentrator through the LoRa wireless transceiver module; in order to solve the problem of long-time stable and reliable work, an independent watchdog circuit is adopted, and when the ARM processor program is abnormal, the power can be cut off and reset in time. Because monitoring devices has the inconvenient problem of power supply, the utility model discloses DCU passes through bluetooth scanning monitoring devices's bluetooth broadcast data, obtains monitoring devices's real-time operating mode, has reduced monitoring devices's energy consumption. The DCU has a large capacity Flash, and stores the acquired real-time data.

The technical scheme is as follows: a DCU for monitoring data of a lightning arrester comprises an ARM processor, a LoRa communication module, a Bluetooth communication module, an RS485 communication module, a data storage module, a clock module and a power supply module; the LoRa communication module, the Bluetooth communication module, the RS485 communication module, the data storage module, the clock module and the power supply module are all connected with the ARM processor; the power supply module comprises a wide-range DC-DC voltage stabilization integrated circuit, a power supply control circuit and a watchdog circuit; the power supply control circuit supplies power to the ARM processor through the watchdog circuit; the DCU is in communication connection with the lightning arrester monitoring device through a Bluetooth communication module; the DCU is in communication connection with the concentrator through the LoRa communication module; the data of the lightning arrester monitoring device is sent to the ARM processor of the DCU through the Bluetooth communication module and stored in the data storage module through the ARM processor.

The DCU of the lightning arrester monitoring data has the characteristics of receiving and storing the real-time monitoring data of the lightning arrester monitoring device, working stability and reliability and the like, and provides powerful technical support for the power supply department to monitor the operation of the lightning arrester.

The ARM processor is an STM32F103RCT6 chip of ST company.

The watchdog chip is a CAT824STDI chip.

The clock module is an RX8025 chip of EPSON company, and a backup power supply of the clock is a button battery.

The data storage module is a W25Q64 Flash module of Taiwan Huabang company.

The LoRa communication module adopts Sx1276 as a wireless communication chip; the Bluetooth communication module adopts an RF-BM-ND05 chip.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of the present invention;

fig. 2 is a schematic circuit diagram according to an embodiment of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

As shown in fig. 1-2, the DCU for monitoring data of the lightning arrester includes an ARM processor, a LoRa communication module, a bluetooth communication module, an RS485 communication module, a data storage module, a clock module, and a power module; the LoRa communication module, the Bluetooth communication module, the RS485 communication module, the data storage module, the clock module and the power supply module are all connected with the ARM processor; the power supply module comprises a wide-range DC-DC voltage stabilization integrated circuit, a power supply control circuit and a watchdog circuit; the power supply control circuit supplies power to the ARM processor through the watchdog circuit, when the ARM works normally, the watchdog is cleared in a timed mode, and the watchdog enables the power supply control circuit to supply power; when the ARM is abnormal, the watchdog is not reset, the watchdog enables the power supply control circuit to be powered off, the watchdog enables the power supply control circuit to be powered on after 1 second, and the ARM chip is powered off, reset and restarted to recover to be normal; the output end of the DC-DC voltage stabilizing integrated circuit and the output end of the watchdog circuit are both connected with a power supply control circuit; the power supply control circuit supplies power to the ARM processor; the DCU is in communication connection with the lightning arrester monitoring device through the Bluetooth communication module; the DCU is in communication connection with the concentrator through the LoRa communication module; the data of the lightning arrester monitoring device are sent to the ARM processor of the DCU through the Bluetooth communication module and stored in the data storage module through the ARM processor.

The ARM processor is an STM32F103RCT6 chip of ST company. The watchdog chip is a CAT824STDI chip. The clock module is an RX8025 chip of EPSON company, and the backup power supply of the clock is a button battery. The data storage module is a W25Q64 Flash module of Taiwan Huabang company. The LoRa communication module adopts Sx1276 as a wireless communication chip; the Bluetooth communication module adopts an RF-BM-ND05 chip.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A centralized processing unit for arrester monitoring data which characterized in that: the system comprises an ARM processor, a LoRa communication module, a Bluetooth communication module, an RS485 communication module, a data storage module, a clock module and a power supply module; the LoRa communication module, the Bluetooth communication module, the RS485 communication module, the data storage module, the clock module and the power supply module are all connected with the ARM processor; the power supply module comprises a wide-range DC-DC voltage stabilization integrated circuit, a power supply control circuit and a watchdog circuit; the power supply control circuit supplies power to the ARM processor through the watchdog circuit; the centralized processing unit is in communication connection with the lightning arrester monitoring device through a Bluetooth communication module; the centralized processing unit is in communication connection with the concentrator through an LoRa communication module; the data of the lightning arrester monitoring device is sent to the ARM processor of the centralized processing unit through the Bluetooth communication module and stored in the data storage module through the ARM processor.

2. The centralized processing unit for lightning arrester monitoring data according to claim 1, characterized in that: the ARM processor is an STM32F103RCT6 chip.

3. The centralized processing unit for lightning arrester monitoring data according to claim 1, characterized in that: the watchdog chip is a CAT824STDI chip.

4. The centralized processing unit for lightning arrester monitoring data according to claim 1, characterized in that: the clock module is an RX8025 chip of EPSON company, and a backup power supply of the clock is a button battery.

5. The centralized processing unit for lightning arrester monitoring data according to claim 1, characterized in that: the data storage module is a W25Q64 Flash module.

6. The centralized processing unit for lightning arrester monitoring data according to claim 1, characterized in that: the LoRa communication module adopts Sx1276 as a wireless communication chip; the Bluetooth communication module adopts an RF-BM-ND05 chip.