CN210862758U - Circulation monitoring devices and system thereof - Google Patents
Circulation monitoring devices and system thereof Download PDFInfo
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- CN210862758U CN210862758U CN201921061052.4U CN201921061052U CN210862758U CN 210862758 U CN210862758 U CN 210862758U CN 201921061052 U CN201921061052 U CN 201921061052U CN 210862758 U CN210862758 U CN 210862758U
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Abstract
The utility model discloses a circulation monitoring device and a system, which comprises a circulation monitoring host, an acquisition unit, a power taking unit and a communication unit; the electricity taking unit takes electricity through a main cable and supplies power to the acquisition unit, the circulation monitoring host and the communication unit; the collection unit collects current signals of the cable and sends the current signals to the circulation monitoring host, the circulation monitoring host converts the current signals into digital signals and stores the digital signals, and the digital signals are transmitted to the monitoring terminal through the communication unit. The utility model provides an artifical low efficiency of patrolling and examining, the real-time is poor, and the single scheduling problem of monitoring object carries out on-line monitoring to the cable sheath circulation, has increased cable surface temperature simultaneously, cable vibration, the monitoring of objects such as cable pit water level.
Description
Technical Field
The utility model relates to an electric power system monitors the field, especially relates to a circulation monitoring devices and system thereof.
Background
With the continuous promotion of the urbanization process in China, the power load is continuously increased, the power cable replaces overhead lines more and more with the advantages of small occupied space, attractive appearance, small influence from the outside and the like, and the power cable is more and more selected in the urban planning construction and power grid upgrading process. However, the cable is buried in the cable trench for a long time, the environment is complex, and the insulation is aged and damaged due to long-time moisture, corrosion and other factors, so that the cable breaks down, and the safe operation of a power grid is influenced.
Aiming at the problems of the cable, the conventional method is manual inspection, and an operation and maintenance worker measures the current of the sheath by using a current clamp meter and judges whether the external insulation of the sheath is aged or damaged. However, due to the manual inspection method, the monitored object is single, the efficiency is low, the real-time performance is poor, the problem of the cable cannot be found in time, and hidden danger is buried for the safe operation of the power grid.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a circulation monitoring device, through the signal of acquisition unit collection cable, circulation monitoring host computer is handled the signal, carries out real-time supervision to the operational aspect of cable, in time discovers the trouble of cable.
The utility model discloses a second purpose provides a circulation monitoring system, through the signal of acquisition element collection cable, circulation monitoring host computer sends to monitor terminal through communication unit after to signal processing, carries out real-time supervision to the operational aspect of cable, in time discovers the trouble of cable.
The utility model discloses an one of the purpose adopts following technical scheme to realize:
a circulation monitoring device comprises a circulation monitoring host, a collecting unit, a power taking unit and a communication unit; the electricity taking unit takes electricity through a main cable and supplies power to the acquisition unit, the circulation monitoring host and the communication unit; the collection unit collects current signals of the cable and sends the current signals to the circulation monitoring host, the circulation monitoring host converts the current signals into digital signals and stores the digital signals, and the digital signals are transmitted to the monitoring terminal through the communication unit.
Furthermore, the collecting unit comprises a circulating current CT for collecting a three-phase sheath grounding circulating current signal and an operating CT for collecting a main cable current signal, and the circulating current signal and the current signal are processed by a filter circuit and a signal amplifying circuit of the circulating current monitoring host, converted into digital signals and stored.
Furthermore, the acquisition unit also comprises a water level sensor, the water level sensor acquires water level information in the cable trench, and the water level information is converted into digital signals through a filter circuit and a signal amplification circuit of the circulation monitoring host and is stored.
Furthermore, the acquisition unit also comprises the temperature sensor, the temperature sensor acquires the surface temperature of the three-phase cable, and the surface temperature is converted into a digital signal through a filter circuit and a signal amplification circuit of the circulating current monitoring host and is stored.
Furthermore, the acquisition unit further comprises a vibration sensor, the vibration sensor acquires vibration information of the three-phase cable, and the vibration information is converted into a digital signal through a filter circuit and a signal amplification circuit of the circulation monitoring host and is stored.
Further, the electricity taking unit comprises an electricity taking CT, the electricity taking CT obtains electricity through a main cable and outputs current to a power module of the circulating current monitoring host; and the power supply module receives the current of the power taking unit, converts the current into a regulated power supply with 12V output, converts the regulated power supply into voltage matched with the acquisition unit and the communication unit through a DC-DC circuit, and supplies power.
Furthermore, the communication unit is provided with an antenna connected with the circulating current monitoring host machine and used for transmitting and receiving signals; the communication unit at least comprises one or more of a 4G communication module, a Wi-Fi module and a Bluetooth module.
And further, the system also comprises an alarm unit, and if the monitoring terminal judges that the abnormal condition exists, the alarm unit sends an abnormal signal to the circulation monitoring host and turns on the warning lamp.
Further, the operation CT, the circulation CT and the power-taking CT are open-close type CT.
The second purpose of the utility model is realized by adopting the following technical scheme:
a circulation monitoring system comprises the circulation monitoring host and a monitoring terminal, wherein the circulation monitoring host transmits signals to the monitoring terminal through a communication unit, and the monitoring terminal judges the current cable condition according to a preset signal value and received signals.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the application provides a cable sheath ground connection circulation monitoring devices and system, a plurality of signals of cable are gathered through the collection unit, are transmitted to monitor terminal through communication module after being processed and locally stored by circulation monitoring host computer. And the monitoring terminal judges whether the current cable has a problem or not according to the received signal value and a preset rule. The utility model discloses can monitor many cable run's circulation situation simultaneously, can be comprehensive monitor the implementation to the cable, the trouble is in time discover constantly, still can prevent in advance that the cable breaks down, guarantees the safe operation of electric wire netting.
Drawings
Fig. 1 is a connection diagram of the embodiment of the present invention;
fig. 2 is a hardware circuit diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 and 2, the utility model provides a circulation monitoring device, which comprises a circulation monitoring host, a collecting unit, a power taking unit and a communication unit; the electricity taking unit takes electricity through a main cable and supplies power to the acquisition unit, the circulation monitoring host and the communication unit; the collection unit collects current signals of the cable and sends the current signals to the circulation monitoring host, the circulation monitoring host converts the current signals into digital signals and stores the digital signals, and the digital signals are transmitted to the monitoring terminal through the communication unit.
The application provides a circulation monitoring devices gathers a plurality of signals of cable through the collection unit, transmits to monitor terminal through communication module. And the monitoring terminal judges whether the current cable has a problem or not according to the received signal value and a preset rule. The utility model discloses can monitor a plurality of cable run's circulation situation simultaneously, can be comprehensive monitor the implementation to the cable, the trouble is in time discover constantly, still can prevent in advance that the cable breaks down, guarantees the safe operation of electric wire netting.
The electricity taking unit comprises an electricity taking CT (current transformer) connected with a power module of the circulation monitoring host, and the electricity taking CT takes electricity through an electromagnetic induction principle. The secondary output of the power acquisition CT is a constant current source, is output to a power module of the circulation monitoring host, and is converted into a voltage stabilizing voltage of 12V output. And the voltage is boosted and reduced through the DC-DC circuit, and power is supplied to other modules. Specifically, the power module is converted into 3.3V voltage through a DC-DC circuit and an LDO (low dropout regulator) to supply power to the acquisition unit and the MCU, and is converted into 4V voltage through the DC-DC circuit to supply power to the communication unit. The power supply carries out induction electricity taking through the electricity taking CT, does not need external commercial power or a battery, only needs the main cable current to reach 17A, and the circulation monitoring device can continuously and normally work, and solves the problems that the outdoor part installation environment has no commercial power and the battery power supply duration is not long.
Specifically, the acquisition unit comprises a circulation CT and operation CT, a temperature sensor, a water level sensor and a vibration sensor. The circulating current CT is a current transformer for monitoring circulating current generated in the running process of the three-phase circuit, and the running CT is a current transformer for collecting main cable current in the running process of the three-phase circuit. The circulation CT and the operation CT both adopt open-close type current transformers, cables do not need to be separated, and the original circuit is not damaged. The temperature sensor is arranged on the surface of the cable and used for collecting the surface temperature of the three-phase cable. And the water level sensor is arranged in a cable trench for laying cables, monitors the water level of the cable trench in real time and collects water level data. In addition, a vibration sensor is arranged to collect vibration information of the three-phase cable. The collected data information is output to the circulation monitoring host, after the data is subjected to primary processing through the filter circuit and the signal amplification circuit, digital-to-analog conversion is carried out on the MCU, the data information is converted into digital signals, and the digital signals are stored.
The MCU packages the collected current, surface temperature, vibration information and water level information, the communication unit sends the current, the surface temperature, the vibration information and the water level information to the monitoring terminal, the monitoring terminal analyzes and records the received data, and whether a problem exists in the current cable is judged according to a preset signal value and the received data. If the problem exists, an abnormal signal is sent to the circulation monitoring host, and the warning lamp is turned on to prompt a worker to overhaul.
The communication unit is provided with an antenna connected with the circulating current monitoring host and used for transmitting and receiving signals, the communication unit at least comprises one or more of a 4G communication module, a Wi-Fi module and a Bluetooth module, and the communication mode can be selected according to actual requirements. In the present embodiment, 4G communication is preferable. The circulation monitoring device defaults that the automatic uploading frequency of data is 5 minutes/time, and the monitoring terminal can issue control commands according to needs to upload data. When the handshake between the device and the monitoring terminal fails, the data is stored in the local memory. And after the communication with the monitoring terminal is successfully established, the data is packaged and sent to the background, so that the intermediate data is ensured not to be lost.
In addition, the application also provides a circulation monitoring system, which comprises the circulation monitoring host and the monitoring terminal, wherein the circulation monitoring host transmits signals to the monitoring terminal through the communication unit, and the monitoring terminal judges the current cable condition according to the preset signal value and the received data.
The circulation monitoring system comprises a circulation monitoring host and a monitoring terminal, and can monitor the circulation condition of a plurality of cable lines at the same time. Monitoring of the surface temperature of the cable, the vibration condition of the cable and the water level condition of the cable trench and comprehensive implementation condition of the cable are monitored through the acquisition unit, the occurrence of a fault is timely found, the cable can be prevented from being broken down in advance, and the safe operation of a power grid is guaranteed.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A circulation monitoring device is characterized by comprising a circulation monitoring host, an acquisition unit, a power taking unit and a communication unit; the electricity taking unit takes electricity through a main cable and supplies power to the acquisition unit, the circulation monitoring host and the communication unit; the collection unit collects corresponding data and sends the data to the circulation monitoring host, the circulation monitoring host converts the data into digital signals and stores the digital signals, and the digital signals are transmitted to the monitoring terminal through the communication unit.
2. A circulating current monitoring device as claimed in claim 1, wherein the collecting unit comprises a circulating current CT for collecting a three-phase sheath grounding circulating current signal and a running CT for collecting a main cable current signal, and the circulating current signal and the current signal are processed by a filter circuit and a signal amplifying circuit of the circulating current monitoring host, converted into digital signals and stored.
3. The circulation monitoring device according to claim 1, wherein the collection unit further comprises a water level sensor, the water level sensor collects water level information in the cable trench, and the water level information is processed by the filter circuit and the signal amplification circuit of the circulation monitoring host, converted into a digital signal by the MCU, and stored.
4. The circulation monitoring device according to claim 1, wherein the collection unit further comprises a temperature sensor, the temperature sensor collects the surface temperature of the three-phase cable, and the surface temperature is processed by the filter circuit and the signal amplification circuit of the circulation monitoring host, then converted into a digital signal by the MCU, and stored.
5. The circulation monitoring device according to claim 1, wherein the collection unit further comprises a vibration sensor, the vibration sensor collects vibration information of the three-phase cable, and the vibration information is processed by a filter circuit and a signal amplification circuit of the circulation monitoring host, converted into a digital signal by the MCU, and stored.
6. The circulation monitoring device according to claim 2, wherein the electricity taking unit comprises an electricity taking CT which takes electricity through a main cable and outputs current to a power module of the circulation monitoring host; and the power supply module receives the current of the power taking unit, converts the current into a regulated power supply with 12V output, converts the regulated power supply into voltage matched with the acquisition unit and the communication unit through a DC-DC circuit, and supplies power.
7. The circulation monitoring device according to claim 1, wherein the communication unit is provided with an antenna connected to the circulation monitoring main unit for transmitting and receiving signals; the communication unit at least comprises one or more of a 4G communication module, a Wi-Fi module and a Bluetooth module.
8. The circulation monitoring device according to claim 1, further comprising an alarm unit, wherein if the monitoring terminal determines an abnormal condition, an abnormal signal is sent to the circulation monitoring host, and the warning light is turned on.
9. The circulation monitoring device according to claim 6, wherein the operation CT, circulation CT and power CT are open-close CT.
10. A circulation monitoring system, comprising the circulation monitoring host and the monitoring terminal according to any one of claims 1 to 9, wherein the circulation monitoring host transmits a signal to the monitoring terminal through the communication unit, and the monitoring terminal determines the current cable condition according to a preset signal value and received data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061052.4U CN210862758U (en) | 2019-07-08 | 2019-07-08 | Circulation monitoring devices and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061052.4U CN210862758U (en) | 2019-07-08 | 2019-07-08 | Circulation monitoring devices and system thereof |
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| CN210862758U true CN210862758U (en) | 2020-06-26 |
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| CN201921061052.4U Active CN210862758U (en) | 2019-07-08 | 2019-07-08 | Circulation monitoring devices and system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060326A (en) * | 2022-07-12 | 2022-09-16 | 四川鑫电电缆有限公司 | Cable monitoring method and system |
| CN117192271A (en) * | 2023-10-08 | 2023-12-08 | 广州羊城电气设备有限公司 | Wire slot cable on-line monitoring system |
-
2019
- 2019-07-08 CN CN201921061052.4U patent/CN210862758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060326A (en) * | 2022-07-12 | 2022-09-16 | 四川鑫电电缆有限公司 | Cable monitoring method and system |
| CN117192271A (en) * | 2023-10-08 | 2023-12-08 | 广州羊城电气设备有限公司 | Wire slot cable on-line monitoring system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Circulation monitoring device and its system Effective date of registration: 20211129 Granted publication date: 20200626 Pledgee: Guangzhou Caold financing Company limited by guarantee Pledgor: GUANGZHOU SCISUN TECHNOLOGY Co.,Ltd. Registration number: Y2021980013496 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |