CN111653940A - Power distribution cabinet power-off detection system with short message automatic alarm function - Google Patents
Power distribution cabinet power-off detection system with short message automatic alarm function Download PDFInfo
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- CN111653940A CN111653940A CN202010564964.4A CN202010564964A CN111653940A CN 111653940 A CN111653940 A CN 111653940A CN 202010564964 A CN202010564964 A CN 202010564964A CN 111653940 A CN111653940 A CN 111653940A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/56—Testing of electric apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- 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
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- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Distribution Board (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power distribution cabinet power-off detection system with a short message automatic alarm function, and belongs to the field of electrical power distribution cabinets. The power failure detection module is connected to a working circuit of the power distribution cabinet through the AC-DC conversion circuit and the resistance voltage division network, when the power distribution cabinet is powered off, the low level on the probe is detected by an ADC (analog to digital converter) of the microcontroller, the microcontroller acquires the current time from the real-time clock module, and then sends information such as power failure time, power failure location and the like to a preset telephone number in a short message mode. When the power distribution cabinet works normally, the power management module is in a charging state and is used for providing working power for the whole system when the power distribution cabinet is powered off, the display module is used for displaying basic information such as the working state of the system, and the Ethernet interface and the RS232 interface are used for enabling a user to reset the system conveniently, setting basic parameters and downloading and updating firmware. The power failure detection equipment for the power distribution cabinet has the characteristics of no need of manual intervention, comprehensive and rapid alarm information and the like, and has wide application prospect in the field of power distribution cabinets in the electrical industry.
Description
Technical Field
The invention relates to a power distribution cabinet power-off detection system with a short message automatic alarm function, and belongs to the technical field of power distribution cabinet power-off detection.
Background
In recent years, industrial detection technology based on the Internet of things is more and more widely applied, the power on and power off detection of a power distribution cabinet in the electrical industry is taken as an important technology in production and life, and the carried object networking can be more convenient and intelligent. The current power distribution cabinet management has the following problems: firstly, according to the national standard of national power distribution, a power distribution room needs to be equipped within the range of 500m of each radius, so that the number of power distribution cabinets is large, and the difficulty of manual management is high. Secondly, the period is long from the calling and appeal of the user to the on-site overhaul of the maintenance personnel, and a lot of wrong user complaint information exists. And thirdly, the power distribution cabinets are large in number, the technical difficulty is high, the investment cost is high, and the workload of maintenance personnel is large, so that the operation and maintenance cost is high. Only great distribution website has outage alarm information to upload the function at its surveillance center among the current electric power system, and less switch board then is not equipped with, in order to improve the managerial efficiency of switch board, reduces its fortune dimension expense, and development switch board outage intellectual detection system's work just has very important actual meaning.
According to the traditional power distribution cabinet power failure detection technology, local acousto-optic alarm is carried out after power failure information is detected by equipment, information cannot be sent to a far-end monitoring center, the local acousto-optic alarm provides certain convenience for judging the power failure position, but the efficiency is still low, and if the equipment is abnormal, the power failure information is detected but the acousto-optic alarm cannot be carried out, so that the trouble of detection equipment can be brought to operation and maintenance personnel.
Disclosure of Invention
The invention aims to solve the problem that information such as power-off time and position cannot be captured quickly after a power distribution cabinet is powered off, improve the management efficiency of the power distribution cabinet, and provide a power distribution cabinet power-off detection system with a short message automatic alarm function.
The invention discloses a power distribution cabinet power-off detection system with a short message automatic alarm function, which comprises a microcontroller module, a power-off detection module, a GSM module, a display module, a power management module, a control and firmware upgrading module, a real-time clock module and a storage module.
The power-off detection module is used for monitoring the on-off state of strong current of the power distribution cabinet in real time and transmitting the information to the microcontroller module in real time, and the microcontroller module controls the display module to display the basic working state information of the power distribution cabinet.
The GSM module receives information such as time, position, telephone number and the like from the microcontroller module and sends the information to a telephone number preset by a user in a short message mode, and meanwhile, the GSM module can receive a short message with a specific message format, analyze the short message and change a preset alarm telephone number according to the short message.
The power management module mainly comprises a lithium battery and a voltage stabilizing circuit, and is used as a standby power supply of the whole system when the power distribution cabinet is powered off, so that basic conditions are provided for normal alarm of the system.
The invention contains a storage module, the storage function of which is realized by an SD card, and the storage module stores basic information of system configuration. In addition, the microcontroller module periodically stores the system state into a specific file of the storage module, so that when the equipment is damaged or abnormal, equipment maintainers can refer to the content in the file to obtain the historical working information of the power distribution cabinet.
The invention contains a control and firmware upgrading module, which enables a user to check and modify information through an Ethernet interface or an RS232 interface and download and upgrade firmware, so that the upgrading and updating of the system are more convenient.
The power failure alarm system can not only perform power failure alarm through the GSM module, but also automatically send the report information of recovering the normal state to the monitoring center after the power distribution cabinet recovers the normal power supply state from the power failure state, thereby reducing the operation and maintenance workload and effectively improving the management efficiency of the power distribution cabinet.
The invention has the advantages that: aiming at the characteristics that the number of power distribution cabinets is large, management is difficult, the traditional power distribution cabinet alarm system cannot quickly capture power failure information and the like, the power distribution cabinet power failure detection system with the automatic short message alarm function is adopted. The power distribution cabinet power on-off information acquisition is carried out under the control of the microcontroller module, the working state information of the power distribution cabinet is displayed according to the acquired information, then the power off information is sent to the monitoring center in a short message mode through the GSM module, and when the power distribution cabinet recovers power supply, the GSM module sends the power supply recovery information of the power distribution cabinet again. The power distribution cabinet power failure detection equipment has the characteristics of no need of manual intervention, comprehensive alarm information, rapidness and the like, and has a wide application prospect in the field of power distribution cabinets in the electrical industry.
Drawings
FIG. 1 is a block diagram of a power distribution cabinet power failure detection system with an automatic short message alarm function according to the present invention;
FIG. 2 is a schematic diagram of a power outage detection module;
FIG. 3 is a schematic diagram of an LED display module;
FIG. 4 is a flowchart of the operation of the control and firmware upgrade module;
fig. 5 is a flowchart of the operation of the power outage alarm.
Detailed Description
The first embodiment is as follows: the following describes the present embodiment with reference to fig. 1 to 5, and the power failure detection system with a short message automatic alarm function in the present embodiment includes a microcontroller module 1, a power failure detection module 2, a display module 3, a power management module 4, a GSM module 5, a control and firmware upgrade module 6, a real-time clock module 7, and a storage module 8, as shown in fig. 1.
The power failure detection module 2 is composed of an AC-DC and a voltage division network, the AC-DC is connected to a strong current alternating current interface of the power distribution cabinet and used for detecting strong current on-off information of the power distribution cabinet, and the microcontroller module 1 periodically collects output signals of the voltage division network through the ADC and displays the current working state of the power distribution cabinet through the display module 3. The composition diagram of the power failure detection module is shown in fig. 2.
The GSM module consists of a UART interface, a radio frequency chip, a power amplifier and an antenna, and the interface between the GSM module and the microcontroller is a serial port UART. Therefore, for the microcontroller, the GSM module is only a serial interface device, and when the whole system is initialized, only the serial port device controller needs to be initialized, and then the configuration mode of the GSM module is initialized through the AT instruction.
When the microcontroller detects that the power-off condition occurs, the microcontroller sends the power-off time and place information to the GSM module in a data packet mode through the UART interface and starts a short message sending action, so that the power-off information is sent to a preset telephone number, and one-time alarm operation is realized.
The GSM module receives the information of the power-off time, the power-off place and the like from the microcontroller module 1 and sends the information to a phone number preset by a user in a short message form. Meanwhile, the GSM module can also receive short messages from other telephone numbers, a user can set and change the alarm telephone number in such a way, and the GSM module analyzes the data format of the short messages after receiving the short messages and extracts control commands and parameters, so that the change is realized. In order to facilitate the user to set and change the alarm telephone, the user can send a short message with a specific format to the GSM module, and if the alarm telephone needs to be changed to 123456789, only the short message setalalarmponene number +123456789 needs to be edited and sent to the telephone number of the GSM module. After receiving the short message, the GSM module sends the short message to the microcontroller module through the serial port, then the microcontroller module analyzes a command and parameters of the short message data, then the alarm telephone is updated, and the alarm telephone is written into the phone number.
The power management module 4 comprises a lithium battery and a voltage stabilizing circuit and is used for supplying power to the detection equipment when the power distribution cabinet is powered off.
The display module 3 of the present invention is used for displaying the working state information of the system, and is composed of 3 LEDs and 3 7-segment digital tubes, as shown in figure 3. 3 digital tubes are used for showing the switch board outage back, the electric quantity of the lithium cell as stand-by power supply, remaining 3 LED, LED1 is used for indicating the system power supply condition, it is normal to light often to indicate the power, LED2 uses 1s to flash as the cycle and shows that microcontroller module 1 normally works, LED3 is used for instructing the communication state of GSM module, when microcontroller module 1 carries out data transmission with GSM module 5, it will flash the cycle, then do not light when not communicating.
The real-time clock module 7 of the present invention is used to provide the time management function of the whole system, and when the system is reset, it will start to time from the starting time point set by the program. In order to enable the distribution cabinet to work for a long time, the button battery provided for the distribution cabinet is used for providing power after the distribution cabinet is powered off. The module uses a DS1302 chip, and the communication interface of the chip with the microcontroller module 1 is SPI. The microcontroller module 1 reads the time information of the module after the power distribution cabinet is powered off, integrates the read information and the position information, and then sends the information to the GSM module 5.
The storage module of the invention is realized by an SD card, the microcontroller module periodically writes the information of the power distribution cabinet into the status log.txt of the microcontroller module, and when the alarm equipment is detected to be abnormal and needs to be overhauled, a user can acquire the historical working condition of the system through the file.
In this embodiment, the invention includes a control and firmware upgrade module 6, which functions to check and modify system configuration information, reset the software system, and download upgrade firmware through a reserved RS232 interface or RJ45 interface, and its operation process is shown in fig. 4. Taking RS232 as an example, a user only needs to connect an RS232 interface of the detection alarm device with a local PC by using a serial port line, and then the operation can be performed by serial port terminal software, and input help can acquire all commands supported by the system, for example, date can display time information of a real-time clock module, and a date-s ymymmdddhmmss command can calibrate the time information of the real-time clock module; the nodeinfo can display the number and the position of the current power distribution cabinet, the nodeinfo-i can set the node number of the power distribution cabinet, and the nodeinfo-l can set the position of the power distribution cabinet; reset can reset the whole system through software; the updatefw can download the firmware program from the upper computer through the serial port, when the command is executed, the equipment stops working temporarily, waits for the upper computer to send the firmware file, erases the Flash in the microcontroller module after the receiving is finished and the verification is successful, writes in new firmware, and finally automatically restarts the system to load the new firmware. Taking the ethernet interface as an example, a user only needs to connect the detection alarm device with the local PC by using a network cable, or connect the local PC to the local area network where the detection alarm device is located, and then communicate with the device at the local PC through the network debugging terminal, and the terminal operation command based on the ethernet interface is the same as the operation command based on the RS232 serial port terminal, which is not described herein again.
The microcontroller module 1 employs a high-speed low-power LPC1114, which is a 32-bit single-chip microcomputer with an arm port-M0 core from NXP corporation. Its main frequency can reach 50MHz at most, and its internal integrated clock generation unit can work without external crystal oscillator. The 32KB Flash program memory is integrated in the microcontroller and can be used for storing firmware programs, the serial port terminal can be realized by one UART, two SPI interfaces with SSP characteristics can be communicated with the real-time clock module DS1302, 1 watchdog timer with a window function can monitor the running state of the system, the power consumption management module can effectively reduce the power consumption of the system, and 42 GPIOs can be used for detecting the power on/off state of a multi-path power distribution cabinet.
The working flow of the microcontroller module in the invention is as shown in figure 5, because the breakpoint detection module of the power distribution cabinet is connected to the GPIO, the microcontroller module can judge the power-on and power-off state of the power distribution cabinet by detecting the level of the GPIO, if the power distribution cabinet is detected to be powered off, the time information of the real-time clock module DS1302 is read by the SPI controller, and the time information is combined with the serial number and the node position information of the power distribution cabinet and is sent to the GSM module by the UART controller. When the GSM module receives the short message, the microcontroller receives the interrupt receiving short message through the UART, and then analyzes and updates the information. In addition, the microcontroller will periodically read the switch board information through timer interrupt, and write the information into status log.txt through the attached file system of the SD card for query.
The above description is only a preferred embodiment of the present invention, and these embodiments are based on different implementations of the present invention, and the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A power distribution cabinet power failure detection system with a short message automatic alarm function is characterized by comprising a microcontroller module (1), a power failure detection module (2), a display module (3), a power management module (4), a GSM module (5), a control and firmware upgrade module (6), a real-time clock module (7) and a storage module (8),
the power failure detection module (2) is used for detecting the power on/off state of the power distribution cabinet, when the microcontroller module (1) detects that the output of a voltage division network of the power failure monitoring module (2) is a low level, the microcontroller module (1) reads the real-time clock module (7), the microcontroller module (1) delivers the power failure time and position information to the GSM module (5), and the GSM module (5) sends the power failure time and position information to a preset telephone number in a short message mode; the display module (3) receives the information of the microcontroller module (1) and displays the basic working state information of the system; the power supply management module (4) is in a charging state when the power distribution cabinet works normally, and provides energy for the whole system after the power distribution cabinet is powered off; the control and firmware upgrading module (6) is used for a user to check, set system information and download and update firmware, and the control and firmware upgrading module (6) is connected to an interface of the microcontroller module (1); the storage module (8) stores the system setting information and the historical operating state information received from the microcontroller module (1) in the form of files.
2. The power distribution cabinet power failure detection system with the short message automatic alarm function according to claim 1, wherein the power failure detection module (2) is composed of an AC-DC circuit and a voltage division network, the AC-DC circuit outputs a voltage direct current signal according to a strong current alternating current signal of the power distribution cabinet, and then the voltage division network converts the low voltage signal into a compatible level of the microcontroller module (1) for the microcontroller to acquire through an ADC.
3. The power distribution cabinet power failure detection system with the short message automatic alarm function according to claim 1, characterized in that the GSM module (5) is composed of a UART interface, a GSM radio frequency chip, a memory and a power amplifier device, has an independent operating system, receives power failure information and control information from the microcontroller module (1), and transmits and receives short messages;
the GSM module (5) can send power-off state information to a preset telephone number and can also set an alarm number by receiving a short message with a specific format.
4. The power distribution cabinet power failure detection system with the short message automatic alarm function according to claim 1, wherein the control and firmware upgrade module (6) is externally provided with two interfaces: an ethernet RJ45 interface and an RS232 interface for user control of the system.
5. The power distribution cabinet outage detection system with the short message automatic alarm function according to claim 1 is characterized in that the system uses a real-time clock module (7) for time management, and the real-time clock module is powered by a button cell and a lithium battery.
6. The power distribution cabinet outage detection system with the short message automatic alarm function according to claim 1, characterized in that the power management module (4) is composed of a lithium battery and a voltage stabilizing circuit, and when the power distribution cabinet works normally, the lithium battery is in a charging mode; when the power distribution cabinet is powered off, the power distribution cabinet can be used as a standby power supply to continuously provide energy for the whole alarm system.
7. The power distribution cabinet power failure detection system with the short message automatic alarm function according to claim 1, characterized in that the system writes information into the storage module (8) every time the system detects a change in the power distribution cabinet power on/off state, so as to prevent the GSM module (5) from being abnormal, thereby providing more reference data when manually troubleshooting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564964.4A CN111653940A (en) | 2020-06-19 | 2020-06-19 | Power distribution cabinet power-off detection system with short message automatic alarm function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564964.4A CN111653940A (en) | 2020-06-19 | 2020-06-19 | Power distribution cabinet power-off detection system with short message automatic alarm function |
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| CN111653940A true CN111653940A (en) | 2020-09-11 |
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| CN202010564964.4A Pending CN111653940A (en) | 2020-06-19 | 2020-06-19 | Power distribution cabinet power-off detection system with short message automatic alarm function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965555A (en) * | 2021-01-29 | 2021-06-15 | 福建丰意电气设备有限公司 | High-voltage board humiture monitoring system |
-
2020
- 2020-06-19 CN CN202010564964.4A patent/CN111653940A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965555A (en) * | 2021-01-29 | 2021-06-15 | 福建丰意电气设备有限公司 | High-voltage board humiture monitoring system |
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