CN220711176U - Power distribution operation and maintenance monitoring device - Google Patents
Power distribution operation and maintenance monitoring device Download PDFInfo
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- CN220711176U CN220711176U CN202322030753.4U CN202322030753U CN220711176U CN 220711176 U CN220711176 U CN 220711176U CN 202322030753 U CN202322030753 U CN 202322030753U CN 220711176 U CN220711176 U CN 220711176U
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- 238000012423 maintenance Methods 0.000 title claims abstract description 22
- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 78
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000005070 sampling Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012952 Resampling Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the field of power distribution monitoring, in particular to a power distribution operation and maintenance monitoring device, which comprises a monitoring slave machine and a monitoring host machine: the monitoring slave is used for collecting data of each feeder line and is connected with the monitoring host through RS485 communication; and (3) monitoring a host: the method comprises the steps of acquiring branch electric parameters detected by a monitoring slave; the branch electric parameters comprise branch electric quantity and branch switching value; the branch circuit electric parameters of the monitoring slave are collected and used as an RS485 communication host; the processing unit is used for transmitting the processing result to an upper computer which is additionally arranged as an RS485 communication slave; the monitoring slave further comprises: and the box opening driving lighting device is used for lighting the distribution box corresponding to the monitoring slave machine. The utility model has high monitoring efficiency.
Description
Technical Field
The utility model relates to the field of power distribution monitoring, in particular to a power distribution operation and maintenance monitoring device.
Background
The existing power distribution operation and maintenance monitoring method is based on a data detection terminal, detects state data in a power distribution box, and performs data acquisition and alarming through an acquisition device.
However, the number of nodes of the data detection terminal is generally large, and when an alarm is generated, the fault is very difficult to remove; second, during data acquisition, it takes more time to switch before each channel due to the different communication modes of each channel.
Disclosure of Invention
The utility model aims to provide a power distribution operation and maintenance monitoring device with high monitoring efficiency.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a power distribution operation and maintenance monitoring device, comprising:
monitoring the slave machine: the system is used for collecting data of all feeder lines and is connected to a monitoring host through RS485 communication;
and (3) monitoring a host: acquiring branch electric parameters detected by a monitoring slave; the branch electric parameters comprise branch electric quantity and branch switching value;
the branch circuit electric parameters of the monitoring slave are collected and used as an RS485 communication host; the processing unit is used for transmitting the processing result to an upper computer which is additionally arranged as an RS485 communication slave;
the monitoring slave further comprises: and the box opening driving lighting device is used for lighting the distribution box corresponding to the monitoring slave machine.
Further, the STM32F407 chip adopted by the host is monitored.
Further, the monitoring slave adopts an STM32F103 chip.
Further, the chip in the monitoring host is used for detecting two paths of three-phase input and switching value input of 6 wet joints;
for three-phase input, two 12-bit analog-to-digital converters ADC of a chip are used for respectively accessing voltage and current, so that three-phase voltage acquisition and three-phase current acquisition are realized;
the switching value is collected by using 6 wet contacts, an optocoupler isolation method is adopted based on an optocoupler, 24V direct current is used as a source, the switching value is considered to have input when the voltage is higher than 24V, and the switching value is considered to have no input when the voltage is lower than 24V.
Further, in the monitoring host, the photoelectric coupler IS an IS181 type photoelectric coupler.
Further, the monitoring slave accesses an external input to the analog-to-digital converter of the monitoring slave chip through the multi-way switch.
Further, the out-of-box driving lighting device includes: the box opening driving lighting circuit and the LED lighting lamp; the unpacking driving lighting circuit is connected with the monitoring slave chip and the LED lighting lamp and used for driving the LED lighting lamp to be turned on or turned off.
Further, the monitoring device further comprises a touch screen which is connected with the monitoring host through RS485 communication.
The utility model has the following beneficial effects:
1. according to the utility model, based on the modes of the monitoring host and the monitoring slave, the monitoring of the distribution boxes is modularized, so that the monitoring results of the distribution boxes can be intuitively obtained, and the fault removal is facilitated; according to the utility model, the communication among the modules is completed by adopting the RS485 bus, so that the standard is unified, the communication mode switching of different transmission channels is avoided, more time is spent, and the communication efficiency is improved;
2. the utility model provides a lighting device, which is beneficial to maintenance when operation and maintenance personnel conduct line investigation and the lighting device is driven to illuminate a distribution box by opening the box.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic circuit diagram of a chip in a monitor host;
FIG. 3 is a schematic diagram of a circuit for monitoring voltage sampling in a host;
FIG. 4 is a schematic diagram of a circuit for monitoring current sampling in a host;
FIG. 5 is a schematic circuit diagram of the switching value acquisition in the monitoring host;
FIG. 6 is a schematic circuit diagram of a chip in a monitoring slave;
FIG. 7 is a schematic circuit diagram of monitoring voltage samples in a slave;
FIG. 8 is a schematic circuit diagram of monitoring current sampling in a slave;
fig. 9 is a schematic circuit diagram of an in-slave monitor out-of-box drive lighting circuit.
Reference numerals: 1. monitoring a slave; 2. monitoring a host; 3. and a touch screen.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present utility model is a power distribution operation and maintenance monitoring device, which includes:
monitoring slave 1: the monitoring system is used for collecting data of all feeder lines and is connected with the monitoring host 2 through RS485 communication;
monitoring host 2: acquiring branch electric parameters detected by the monitoring slave 1; the branch electric parameters comprise branch electric quantity and branch switching value;
the system is used for collecting and monitoring the branch electric parameters of the slave machine 1 as an RS485 communication host; the processing unit is used for transmitting the processing result to an upper computer which is additionally arranged as an RS485 communication slave;
the monitoring slave 1 further includes: the box opening driving lighting device is used for lighting the distribution box corresponding to the monitoring slave machine 1.
Referring to fig. 2-5, in this embodiment, the monitor host 2 uses an STM32F407 chip, which has a high computing power. The monitoring host 2 serves as a hinge between the upper computer and the monitoring slave 1 and plays a role in supporting up and down. The monitoring slave machines 1 are arranged in a plurality of distribution boxes.
The chip in the monitoring host 2 is used for detecting two paths of three-phase input and switching value input of 6 wet joints; the two-way three-phase input is the branch electric quantity, and the switching value input is the branch electric parameter; for three-phase input, two 12-bit analog-to-digital converters ADC of a chip are used for respectively accessing voltage and current, so that three-phase voltage sampling and three-phase current sampling are realized, wherein the phase voltage sampling circuit uses two 100KΩ resistors and 301 Ω resistors for voltage division treatment and then is accessed to the ADC; the phase current sampling adopts a detection voltage value, and the input current is converted into a small current for resampling by calculating a reduction current value.
The switching value is acquired by using 6 wet contacts, an optocoupler isolation method is adopted based on an optocoupler, 24V direct current is used as a source, the switching value is considered to have input when the voltage is higher than 24V, and the switching value is considered to have no input when the voltage is lower than 24V; the photoelectric coupler IS an IS181 type photoelectric coupler.
Referring to fig. 6 to 8, in this embodiment, the monitoring slave 1 uses an STM32F103 chip; the chip has smaller volume, thus reducing the layout range of the pins of the chip, greatly reducing the mutual interference between the circuit board and each component, and providing better convenience for the layout and wiring of the PCB.
The monitoring slave 1 connects the external input to the analog-to-digital converter of the monitoring slave 1 chip through the multiple switch. The monitoring slave 1 detects 36 paths of single-phase input and also uses two 12-bit analog-to-digital converters ADC to respectively access voltage and current. Unlike the monitoring host 2, since 36 paths of inputs are to be detected, an ADC channel cannot be allocated to each path of input, and multiplexing of channels is achieved by combining eight-way switches.
The box opening driving lighting device comprises: the box opening driving lighting circuit and the LED lighting lamp; the unpacking driving lighting circuit is connected with the controller of the monitoring slave 1 and the LED lighting lamp and used for driving the LED lighting lamp to be turned on or turned off.
After the operator obtains the monitoring information, the distribution box needs to be operated and maintained, the first time is needed to be repaired, and when the operation and maintenance time is at night, the driving illumination in the box is very necessary. Referring to fig. 9, in the in-box illumination driving circuit of the embodiment, the DIS-LED of the photo coupler is connected to the monitoring slave 1 chip, and the DGND pin of the photo coupler is connected to the ground terminal of the monitoring slave 1 chip, so as to control in-box illumination. The pull-up resistor R68 with a resistance of 1K plays a role of pulling the level high to meet the control of the LED. R69 and R70 have shunt function, and two transistors are connected in parallel to be used as switches to trigger signals in the circuit, because when the semiconductor device is in a cut-off state, the semiconductor device is not cut off, and is in a high-resistance state in fact, if the device is connected with a power supply, leakage current can pass through the semiconductor device. Although leakage current is typically negligible, sometimes it may lead to unsafe overall circuit design. The reverse diode V15 is an important link for driving whether the LED is turned on or not, and directly affects on/off of the LED. When Q1 provides a high level, V15 turns off, causing the LED to fail to illuminate. The monitoring slave 1 chip controls the on and off of the LED lamp, when maintenance personnel conduct line investigation and fault diagnosis, the LED lamp is in an on state, maintenance of the maintenance personnel is facilitated, and when the intelligent distribution box normally and stably operates, the LED lamp is in an off state, so that electric energy loss is avoided.
The monitoring device also comprises a touch screen 3 which is connected with the monitoring host 2 through RS485 communication; the embedded integrated configuration screen of TPC7062Hw in the Kunlun state is selected, so that the on-site data acquisition and display are effectively completed.
The utility model is not related in part to the same or implemented in part by the prior art.
The foregoing is a further detailed description of the utility model in connection with specific embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (8)
1. A power distribution operation and maintenance monitoring device is characterized in that: comprising
Monitoring the slave machine: the system is used for collecting data of all feeder lines and is connected to a monitoring host through RS485 communication;
and (3) monitoring a host: acquiring branch electric parameters detected by a monitoring slave; the branch electric parameters comprise branch electric quantity and branch switching value;
the branch circuit electric parameters of the monitoring slave are collected and used as an RS485 communication host; the processing unit is used for transmitting the processing result to an upper computer which is additionally arranged as an RS485 communication slave;
the monitoring slave further comprises: and the box opening driving lighting device is used for lighting the distribution box corresponding to the monitoring slave machine.
2. The power distribution operation and maintenance monitoring device according to claim 1, wherein: STM32F407 chip adopted by monitoring host.
3. The power distribution operation and maintenance monitoring device according to claim 1, wherein: the monitoring slave adopts an STM32F103 chip.
4. The power distribution operation and maintenance monitoring device according to claim 2, wherein: the chip in the monitoring host is used for detecting two paths of three-phase input and switching value input of 6 wet joints;
for three-phase input, two 12-bit analog-to-digital converters ADC of a chip are used for respectively accessing voltage and current, so that three-phase voltage acquisition and three-phase current acquisition are realized;
the switching value is collected by using 6 wet contacts, an optocoupler isolation method is adopted based on an optocoupler, 24V direct current is used as a source, the switching value is considered to have input when the voltage is higher than 24V, and the switching value is considered to have no input when the voltage is lower than 24V.
5. The power distribution operation and maintenance monitoring device according to claim 4, wherein: in the monitoring host, the photoelectric coupler IS an IS181 type photoelectric coupler.
6. A power distribution operation and maintenance monitoring device according to claim 3, wherein: the monitoring slave accesses the external input to the analog-to-digital converter of the monitoring slave chip through the multi-way switch.
7. A power distribution operation and maintenance monitoring device according to claim 3, wherein: the box opening driving lighting device comprises: the box opening driving lighting circuit and the LED lighting lamp; the unpacking driving lighting circuit is connected with the monitoring slave chip and the LED lighting lamp and used for driving the LED lighting lamp to be turned on or turned off.
8. The power distribution operation and maintenance monitoring device according to claim 1, wherein: the monitoring device further comprises a touch screen which is connected with the monitoring host through RS485 communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322030753.4U CN220711176U (en) | 2023-07-31 | 2023-07-31 | Power distribution operation and maintenance monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322030753.4U CN220711176U (en) | 2023-07-31 | 2023-07-31 | Power distribution operation and maintenance monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220711176U true CN220711176U (en) | 2024-04-02 |
Family
ID=90447210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322030753.4U Active CN220711176U (en) | 2023-07-31 | 2023-07-31 | Power distribution operation and maintenance monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220711176U (en) |
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2023
- 2023-07-31 CN CN202322030753.4U patent/CN220711176U/en active Active
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