CN214900357U - GNSS/MET power supply monitoring device - Google Patents

GNSS/MET power supply monitoring device Download PDF

Info

Publication number
CN214900357U
CN214900357U CN202121378293.9U CN202121378293U CN214900357U CN 214900357 U CN214900357 U CN 214900357U CN 202121378293 U CN202121378293 U CN 202121378293U CN 214900357 U CN214900357 U CN 214900357U
Authority
CN
China
Prior art keywords
module
gnss
met
power
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121378293.9U
Other languages
Chinese (zh)
Inventor
梁静舒
梁宏
曹云昌
涂满红
王海深
胡姮
赵盼盼
邵楠
雷勇
胡学英
刘金城
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMA Meteorological Observation Centre
Original Assignee
CMA Meteorological Observation Centre
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CMA Meteorological Observation Centre filed Critical CMA Meteorological Observation Centre
Priority to CN202121378293.9U priority Critical patent/CN214900357U/en
Application granted granted Critical
Publication of CN214900357U publication Critical patent/CN214900357U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

Abstract

The utility model discloses a GNSS MET power monitoring device, including main control unit system module and the power supply unit of being connected with main control unit system module electricity, power supply signal monitoring unit, the display module, the humiture parasite aircraft, 4G full net leads to the module, data communication interface module, 4G full net leads to the module and passes through RJ45/4G module connection network data exchange extension, network data exchange extension passes through RJ45 interface connection GNSS MET standard output controller and RJ45/4G interface device, main control unit system module passes through data communication interface module and connects outside supervisory equipment. The utility model discloses a power remote monitoring function can realize remote switch machine, guarantees the power supply reliability through the UPS power, can monitor multiclass operating data such as voltage, electric current, power parameter and environment humiture of operation equipment in the GNSS MET system, and the function is more perfect.

Description

GNSS/MET power supply monitoring device
The technical field is as follows:
the utility model relates to a power control technical field especially relates to a GNSS MET power monitoring device.
Background art:
the model of GNSS/MET receiver equipment in the current domestic GNSS/MET system is diversified, so that the observation data format is not uniform, the quality control mode is not uniform, and the quality control result index is not uniform. These problems also cause the station and the work personnel in the province office to be unable to completely check the information data in the GNSS/MET system in real time, and the stability and accuracy of the GNSS/MET system are seriously affected.
At present, no dedicated and unified GNSS/MET power supply monitoring device exists in domestic countries, most users can directly carry out 220V mains supply function on GNSS/MET receivers, GNSS/MET weather instruments and other equipment in a separated mode, and then collect relevant data in an RS232/RS485/RJ45 mode, so that the purpose of atmosphere detection is achieved, but the following problems exist:
1. when the mains supply is powered off, the operating equipment in the GNSS/MET system is also powered off, and data cannot be acquired, so that a user cannot be guaranteed to acquire complete data.
2. Certain devices in the GNSS/MET system are powered to the DC12v, and a new AC-to-DC module is needed to solve the power supply problem, but the installation difficulty of the module is increased due to the addition of the new module.
3. Some devices in the GNSS/MET system communicate with interfaces such as RS485 or RS232, and at this time, one or more new modules for response need to be added, so as to solve the communication problem.
4. The current power supply system cannot monitor the running state of working equipment in the GNSS/MET system.
5. The current power supply system cannot monitor the environment temperature and humidity of working equipment in the GNSS/MET system.
6. The working equipment in the power supply on-off control system of the current power supply system cannot realize remote power supply on-off control.
The utility model has the following contents:
an object of the utility model is to provide a GNSS MET power monitoring device to solve the not enough of the prior art who proposes in the background art.
The utility model discloses by following technical scheme implement: the utility model provides a GNSS/MET power monitoring device, its characterized in that includes main control unit system module and power supply unit, power supply signal monitoring unit, display module, humiture parasite aircraft, 4G full net lead to module, the data communication interface module of being connected with main control unit system module electricity, the 4G full net leads to the module and passes through RJ45/4G module connection network data exchange extension, network data exchange extension passes through RJ45 interface connection GNSS/MET standard output controller and RJ45/4G interface device, main control unit system module passes through data communication interface module connection external monitoring equipment.
Preferably, the main controller system module is a single-chip processor, and the single-chip processor is electrically connected with the HDMI circuit, the signal processing circuit, the electric quantity detection circuit, the memory circuit, the gigabit network circuit, the USB circuit, the serial port circuit, and the 4G circuit.
Preferably, the power supply unit comprises a UPS power supply, a power filter, a power management module, an overcurrent fuse protection circuit and an AC/DC module, the power supply signal monitoring unit comprises a strong electric monitoring circuit module, a strong electric signal collector module and a signal processor module, the UPS power supply, the power filter, the power management module and the overcurrent fusing protection circuit are connected in sequence, the output end of the power management module is connected with the main controller system module, the output end of the overcurrent fusing protection circuit is connected with the strong electric signal collector module, the output end of the strong electric signal collector module is connected with an AC/DC module, the strong electric monitoring circuit module, the strong electric signal collector module and the signal processor module are sequentially connected, the strong current monitoring circuit module and the signal processor module are also electrically connected with the main controller system module.
Preferably, the strong current monitoring circuit module is connected with an AC220V interface, and the AC/DC module is connected with a DC12V/5V power supply interface.
Preferably, the data communication interface module comprises a USB/HDMI interface and an RS232/RS485 interface, the external monitoring device comprises a USB mouse, a USB keyboard, an environment monitoring device and a serial port device, the USB/HDMI interface is connected with the USB mouse and the USB keyboard, and the RS232/RS485 interface is connected with the environment monitoring device and the serial port device.
Preferably, the GNSS/MET standard output controller is connected with the GNSS/MET weather instrument and the GNSS/MET receiver.
Preferably, the AC220V interface is connected with a GNSS/MET meteorological instrument and 220V working equipment, and the DC12V/5V power supply interface is connected with a GNSS/MET receiver and 12V/5V working equipment.
Preferably, the type of the single chip microcomputer processor is S5P 6818.
Preferably, the electric quantity detection circuit is an electric quantity detection circuit based on a QS1211B electric energy chip, and the QS1211B electric energy chip is connected with a voltage transformer sampling circuit and a current transformer sampling circuit.
The utility model has the advantages that:
1. the GNSS/MET power supply monitoring device ensures the power supply reliability of the device through the UPS, and meanwhile, the power supply fault can be informed through short messages, so that the running problem of the equipment is ensured to be reliable, the direct current voltage and the alternating current voltage are supported to be output simultaneously, and the power supply requirement of GNSS/MET related equipment in the current market is completely MET.
2. The device realizes the remote monitoring function of the power supply, can realize remote startup and shutdown, and can monitor the operation data of voltage, current, power parameters, environment temperature and humidity and the like of the operation equipment in the GNSS/MET system; the network communication condition of the working equipment in the GNSS/MET system can be monitored through the display screen, the vacancy of the market of the existing GNSS/MET observation device is made up, and the GNSS/MET system is more complete.
3. The device supports multiple interfaces such as RJ45/RS485/RS232/USB for communication, meets the communication interface of GNSS/MET related equipment in the current market, and avoids the user from purchasing some communication data conversion modules.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an overall schematic block diagram of a GNSS/MET power monitoring apparatus according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a main controller system module of a GNSS/MET power monitoring apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a power detection circuit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a voltage transformer detection circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a current transformer detection circuit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a 485 communication circuit according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a 232 communication circuit according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a remote control execution circuit according to an embodiment of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a GNSS/MET power monitoring apparatus includes a main controller system module, a power supply unit electrically connected to the main controller system module, a power supply signal monitoring unit, a display module, a humiture sub-machine, a 4G all-network communication module, and a data communication interface module, where the 4G all-network communication module is connected to a network data switch extension through an RJ45/4G module, the network data switch extension is connected to a GNSS/MET standard output controller and an RJ45/4G interface device through an RJ45 interface, and the main controller system module is connected to an external monitoring device through the data communication interface module. The GNSS/MET standard output controller is connected with the GNSS/MET weather instrument and the GNSS/MET receiver.
The power supply unit comprises a UPS power supply, a power filter, a power management module, an overcurrent fuse protection circuit and an AC/DC module, the power supply signal monitoring unit comprises a strong current monitoring circuit module, a strong current electric signal collector module and a signal processor module, the UPS power supply, the power filter, the power management module and the overcurrent fuse protection circuit are sequentially connected, the output end of the power management module is connected with a main controller system module, the output end of the overcurrent fuse protection circuit is connected with the strong current electric signal collector module, the output end of the strong current electric signal collector module is connected with the AC/DC module, the strong current monitoring circuit module, the strong current electric signal collector module and the signal processor module are sequentially connected, and the strong current monitoring circuit module and the signal processor module are also electrically connected with the main controller system module. The strong electricity monitoring circuit module is connected with an AC220V interface, the AC/DC module is connected with a DC12V/5V power supply interface, the AC220V interface is connected with a GNSS/MET weather instrument and 220V working equipment, and the DC12V/5V power supply interface is connected with a GNSS/MET receiver and 12V/5V working equipment.
As shown in fig. 2, the main controller system module is a single-chip processor, and the single-chip processor is electrically connected to the HDMI circuit, the signal processing circuit, the electric quantity detection circuit, the memory circuit, the gigabit network circuit, the USB circuit, the serial port circuit, and the 4G circuit.
In this embodiment, the model of the single chip processor is S5P6818, and S5P6818 is a high-integration high-performance eight-core Cortex-a53 chip serving as a main processor, and the operating dominant frequency can be as high as 1.4Ghz, and supports various interfaces. An on-board 1GB DDR3 memory and 8GB eMMC high speed flash memory circuit. The device comprises a configuration network circuit, a power management circuit, an HDMI circuit, an RS232 circuit, an RS485 circuit, a voltage and current acquisition circuit and the like.
The data storage part comprises a TF card circuit, a USB circuit and an EMMC memory circuit, and the circuits realize the following functions: (1) storing system data locally; (2) a user can transfer and store data through the USB port to realize data query and backup; (3) when a user needs to store a large amount of data for a long time, the large storage sd card can be replaced, long-time data storage can be achieved, and data cannot be lost.
In this embodiment, the data communication interface module includes a USB/HDMI interface and an RS232/RS485 interface, the external monitoring device includes a USB mouse, a USB keyboard, an environment monitoring device and a serial device, the USB/HDMI interface is connected to the USB mouse and the USB keyboard, and the RS232/RS485 interface is connected to the environment monitoring device and the serial device. The working equipment in the current GNSS/MET system mainly adopts three modes of information interaction, namely, internet access, RS232 and RS485, and the current GNSSMET power supply monitoring device also supports the three communication modes, so that the requirement of data communication of all equipment in the current GNSS/MET system is MET.
In this embodiment, the power detection circuit is a power detection circuit based on a QS1211B power chip, and the QS1211B power chip is connected to the voltage transformer sampling circuit and the current transformer sampling circuit. The detection of the voltage, current and power of the working equipment is one of the most important parts of the power supply monitoring device, and the operation state, data quality, system stability and other important system indexes of the working equipment are very clearly known through the electrical parameter information. When the abnormality occurs, corresponding warning information is also sent to the user. The partial acquisition sensor adopts a voltage transformer and a current transformer to carry out acquisition, is safe and reliable, is convenient to install and ensures the integrity of a circuit.
In addition, as shown in fig. 1, the humiture sub-machine is used for detecting the environmental humiture, the display module is LCD for displaying, and the current communication interface is an HDMI communication interface, so that a man-machine interaction working interface is realized. The display module implements the following functions: (1) local power supply control is realized; (2) the operation state, voltage, current, power and other electrical parameters of the local observation working equipment are realized; (3) checking the UPS operation condition in real time; (4) observing the environment and monitoring the temperature and humidity conditions; (5) the relevant parameters of the UPS can be set directly.
The working principle of the utility model is as follows:
when the mains supply is electrified, the UPS is powered (if the UPS storage battery is not fully charged, the storage battery is charged), the power output by the UPS is filtered by the power filter and then is supplied to the power management module, and at the moment, the power management module can generate direct-current voltage to supply power to the main processor system module and direct-current working equipment (such as a GNSS/MET receiver) in the GNSS/MET system. The AC220V power supply passes through the overcurrent fuse protection circuit, then passes through the strong current monitoring circuit module, the strong current and electric signal collector module, and the signal processor module to monitor, and then supplies power to the internal AC module device and the AC working device (such as GNSS/MET weather meter) in the GNSS/MET system. When the mains supply is disconnected, the monitoring device continues to supply power (namely UPS discharges), all working equipment is ensured to continue to work normally, meanwhile, the user is informed of the disconnection of the mains supply by the short message, and corresponding measures are taken to prevent data loss. When the mains supply is in an incoming call, the power supply monitoring device can automatically switch to the mains supply. The strong current monitoring circuit module includes a voltage mutual inductance detection circuit and a current mutual inductance detection circuit as shown in fig. 4 and 5. The strong electric signal collector module is a power detection circuit based on a QS1211B power chip as shown in fig. 3. The signal processor module is a filter circuit shown by capacitors C30, C31, C32 and C33 in figures 4 and 5.
When the power supply monitoring device works normally, the power supply monitoring device acquires electrical parameter information of voltage, current, functions and the like of working equipment in real time, interacts with UPS data to acquire current UPS working information and battery capacity information, can be connected with environment monitoring equipment and the like through RS232/RS485/RJ45/USB interfaces for environment monitoring, or is connected with a mouse, a keyboard and other working equipment, and RS232/RS485 related circuits are shown in FIGS. 6 and 7. All the information is uploaded to a server through a network, data backup and storage are carried out on the local computer, and meanwhile data display can be carried out through a display screen so as to be convenient for monitoring.
Then, the user can monitor the information locally or remotely, grasp the running state of the working equipment in the current GNSS/MET system, the environmental temperature and humidity conditions and the like, and ensure the normal running of the GNSS/MET system. The GNSS/MET standard output controller monitors and controls the operation of the GNSS/MET weather instrument and the GNSS/MET receiver, and the execution circuit for controlling the operation of the GNSS/MET weather instrument and the GNSS/MET receiver is shown in FIG. 8. The working data of the GNSS/MET weather instrument and the GNSS/MET receiver sequentially passes through the RJ45 interface, the network data switch extension and the RJ45/4G module, is collected and processed by the main processor system module and then is displayed on the display, and meanwhile, the working data is remotely controlled by the main processor system module, and other RJ45/4G interface devices are similar.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a GNSS/MET power monitoring device, its characterized in that includes main control unit system module and power supply unit, power supply signal monitoring unit, display module, humiture parasite aircraft, 4G full net lead to module, the data communication interface module of being connected with main control unit system module electricity, the 4G full net leads to the module and passes through RJ45/4G module connection network data exchange extension, network data exchange extension passes through RJ45 interface connection GNSS/MET standard output controller and RJ45/4G interface device, main control unit system module passes through data communication interface module connection external monitoring equipment.
2. The GNSS/MET power monitoring apparatus of claim 1, wherein the main controller system module is a single-chip processor, and the single-chip processor is electrically connected to the HDMI circuit, the signal processing circuit, the power detection circuit, the memory circuit, the gigabit network circuit, the USB circuit, the serial port circuit, and the 4G circuit.
3. The GNSS/MET power monitoring device of claim 1, wherein the power supply unit comprises a UPS power supply, a power filter, a power management module, an over-current fusing protection circuit, and an AC/DC module, the power supply signal monitoring unit comprises a strong current monitoring circuit module, a strong current signal collector module, and a signal processor module, the UPS power supply, the power filter, the power management module, and the over-current fusing protection circuit are sequentially connected, an output end of the power management module is connected with the main controller system module, an output end of the over-current fusing protection circuit is connected with the strong current signal collector module, an output end of the strong current signal collector module is connected with the AC/DC module, the strong current monitoring circuit module, the strong current signal collector module, and the signal processor module are sequentially connected, the strong current monitoring circuit module, the over-current fusing protection circuit module, the AC/DC module, the signal processor module, the power monitoring circuit module, the over-current signal processor module, the AC/DC module, and the signal processor module, The signal processor module is also electrically connected with the main controller system module.
4. The GNSS/MET power supply monitoring apparatus of claim 3, wherein the strong power monitoring circuit module is connected to an AC220V interface, and the AC/DC module is connected to a DC12V/5V power supply interface.
5. The GNSS/MET power monitoring apparatus of claim 1, wherein the data communication interface module comprises a USB/HDMI interface and an RS232/RS485 interface, the external monitoring device comprises a USB mouse, a USB keyboard, an environment monitoring device and a serial device, the USB/HDMI interface is connected with the USB mouse and the USB keyboard, and the RS232/RS485 interface is connected with the environment monitoring device and the serial device.
6. The GNSS/MET power monitoring apparatus of claim 1, wherein the GNSS/MET standard output controller is connected to a GNSS/MET weather meter and a GNSS/MET receiver.
7. The GNSS/MET power monitoring apparatus of claim 4, wherein the AC220V interface is connected to a GNSS/MET weather meter and 220V operation equipment, and the DC12V/5V power interface is connected to a GNSS/MET receiver and 12V/5V operation equipment.
8. The GNSS/MET power monitoring apparatus of claim 2, wherein the single-chip processor is S5P 6818.
9. The GNSS/MET power monitoring apparatus of claim 2, wherein the power detection circuit is a QS1211B power chip, and the QS1211B power chip is connected to a voltage transformer sampling circuit and a current transformer sampling circuit.
CN202121378293.9U 2021-06-21 2021-06-21 GNSS/MET power supply monitoring device Active CN214900357U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121378293.9U CN214900357U (en) 2021-06-21 2021-06-21 GNSS/MET power supply monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121378293.9U CN214900357U (en) 2021-06-21 2021-06-21 GNSS/MET power supply monitoring device

Publications (1)

Publication Number Publication Date
CN214900357U true CN214900357U (en) 2021-11-26

Family

ID=78905813

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121378293.9U Active CN214900357U (en) 2021-06-21 2021-06-21 GNSS/MET power supply monitoring device

Country Status (1)

Country Link
CN (1) CN214900357U (en)

Similar Documents

Publication Publication Date Title
CN102798786A (en) Universal intelligent lightning protection monitoring module and method
CN101359029A (en) 1-wire bus DCearth fault on-line automatic monitoring apparatus
CN207832923U (en) A kind of distributing monitoring system
CN113541307A (en) Distribution transformer control circuit
CN202353313U (en) Monitoring system of power supply equipment for power
CN108512308B (en) Building energy consumption collection system
CN111030298A (en) Comprehensive monitoring platform for power information communication
CN208723621U (en) A kind of universal monitoring system of base station switch power supply
CN214900357U (en) GNSS/MET power supply monitoring device
CN204535758U (en) Power transmission and transforming equipment integration monitoring device
CN214409153U (en) Operating state monitor for oil fume purifier
CN203416050U (en) Transformer room low-voltage power supply remote real-time monitoring apparatus
CN203276542U (en) Mobile display and control system for power distribution room information
CN202721445U (en) Intelligent reactive power compensation integrated module
CN113270945A (en) GNSS/MET power supply monitoring device and method
CN205562672U (en) Integration arrester on -line monitoring device
CN201726122U (en) Self-powered microcomputer protector capable of fetching electricity on basis of high-voltage current transformer
CN204833685U (en) Copy accuse ware based on on --spot fortune dimension of PAD
CN209560016U (en) A kind of DC power supply plate connector detection system
CN206806636U (en) A kind of intellectual monitoring power distribution unit
CN111596128A (en) Single-phase intelligent electric energy meter for monitoring UPS power supply
CN215867555U (en) GNSSMET monitoring device
CN212519017U (en) Intelligent device monitor
CN203882179U (en) Transformer temperature controller detection system
CN203117715U (en) Dual power switch capable of communication and connection with monitor host

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant