CN215934518U - Station control layer monitoring device based on Ethernet switch - Google Patents

Station control layer monitoring device based on Ethernet switch Download PDF

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Publication number
CN215934518U
CN215934518U CN202122102455.2U CN202122102455U CN215934518U CN 215934518 U CN215934518 U CN 215934518U CN 202122102455 U CN202122102455 U CN 202122102455U CN 215934518 U CN215934518 U CN 215934518U
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power supply
resistor
voltage
effect transistor
supply unit
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卢壮
李明杰
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Nanjing Aotong Intelligent Technology Co ltd
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Nanjing Aotong Intelligent Technology Co ltd
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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
    • 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
    • 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

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Abstract

The utility model discloses a station control layer monitoring device based on an Ethernet switch, which comprises a measurement and control module, the Ethernet switch, a server and a power supply module, wherein the measurement and control module is connected with the Ethernet switch, the Ethernet switch is connected with the server, the power supply module is connected with the Ethernet switch, and the power supply module supplies power to the Ethernet switch; the power module comprises a first power supply unit, a second power supply unit, a charging unit and an automatic switching unit, the first power supply unit and the second power supply unit are both connected with the Ethernet switch, the charging unit is connected with the second power supply unit, and the automatic switching unit is respectively connected with the first power supply unit and the second power supply unit. According to the utility model, the first power supply unit and the second power supply unit can both supply power to the Ethernet switch, when the first power supply unit works normally, the second power supply unit is disconnected, and when the first power supply unit breaks down, the second power supply unit is automatically connected to supply power, so that the stability of the Ethernet switch and the monitoring device is improved.

Description

Station control layer monitoring device based on Ethernet switch
Technical Field
The utility model relates to the technical field of measurement and control, in particular to a station control layer monitoring device based on an Ethernet switch.
Background
The station control layer is used for monitoring the station level and plays an important role in the normal operation of the power system, and the Ethernet switch is used as an important device in the station control layer, so that the normal operation of the Ethernet switch is very critical. In the prior art, when the power module is used for supplying power to the ethernet switch, if the power module is disconnected due to a fault, the ethernet switch stops working, and thus the operation of the whole power system is affected. Moreover, when a power module fails, the determination of the failure area is also difficult.
SUMMERY OF THE UTILITY MODEL
The technical purpose is as follows: aiming at the problems in the prior art, the utility model discloses a station control layer monitoring device based on an Ethernet switch, wherein two power supply units can supply power to the Ethernet switch, and when one power supply unit fails, the other power supply unit can be automatically switched to supply power.
The technical scheme is as follows: in order to realize the technical purpose, the utility model adopts the following technical scheme: a station control layer monitoring device based on an Ethernet switch comprises a measurement and control module, the Ethernet switch, a server and a power supply module, wherein the measurement and control module is connected with the Ethernet switch, the Ethernet switch is connected with the server, the power supply module is connected with the Ethernet switch, and the power supply module outputs power supply voltage to supply power to the Ethernet switch;
the power module comprises a first power supply unit, a second power supply unit, a charging unit and an automatic switching unit, the first power supply unit and the second power supply unit are both connected with the Ethernet switch, the charging unit is connected with the second power supply unit, and the automatic switching unit is respectively connected with the first power supply unit and the second power supply unit.
Preferably, the first power supply unit comprises a voltage stabilizing chip U1, a diode D1, a diode D3 and an inductor L1, wherein the model of the voltage stabilizing chip U1 is AMS 1117-3.3V;
pin 3 of the voltage stabilizing chip U1 is connected with +5V power voltage through a diode D1, the anode of the diode D1 is connected with +5V power voltage, pin 4 of the voltage stabilizing chip U1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with the anode of a diode D3, and the cathode of the diode D3 is connected with the output end of a power module to output +3.3V power supply voltage.
Preferably, the power module further comprises an alarm unit, the alarm unit is connected with the first power supply unit, and the alarm unit comprises a light emitting diode LED1, a light emitting diode LED3, a resistor R1 and a resistor R10;
the anode of the light-emitting diode LED1 is connected with +5V power voltage, the cathode of the light-emitting diode LED1 is connected with one end of a resistor R1, and the other end of the resistor R1 is grounded;
the anode of the light emitting diode LED3 is connected with the anode of the diode D3, the cathode of the light emitting diode LED3 is connected with one end of the resistor R10, and the other end of the resistor R10 is grounded.
Preferably, the second power supply unit comprises a battery BAT, a voltage conversion chip U3, a field effect transistor Q1, a diode D2, a diode D4 and an inductor L3, wherein the model of the voltage conversion chip U3 is NCP1402SN 33;
pin 5 of the voltage conversion chip U3 is connected to the drain of the fet Q1 through the inductor L3, the source of the fet Q1 is connected to the positive electrode of the battery BAT, the negative electrode of the battery BAT is grounded, pin 5 of the voltage conversion chip U3 is connected to the positive electrode of the diode D2, pin 1 and pin 2 of the voltage conversion chip U3 are connected to the negative electrode of the diode D2 after short-circuited, the negative electrode of the diode D2 is connected to the positive electrode of the diode D4, and the negative electrode of the diode D4 is connected to the output terminal of the power module, so as to output a +3.3V supply voltage.
Preferably, the automatic switching unit comprises a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and a resistor R8, wherein the model of the field effect transistor Q1 and the model of the field effect transistor Q2 are IRF5210, and the model of the field effect transistor Q3 is 2N 7002;
the source of the field effect transistor Q3 is grounded, the gate of the field effect transistor Q3 is connected with the anode of the diode D3 through the resistor R8, the drain of the field effect transistor Q3 is connected with the gate of the field effect transistor Q2 through the resistor R7, the gate of the field effect transistor Q2 is connected with VCC voltage through the resistor R6, the source of the field effect transistor Q2 is connected with VCC voltage, the drain of the field effect transistor Q2 is grounded through the resistor R4 and the resistor R5 which are connected in series, the gate of the field effect transistor Q1 is connected with the common end of the resistor R4 and the resistor R5, the source of the field effect transistor Q1 is connected with the anode of the battery BAT, and the drain of the field effect transistor Q1 is connected with one end of the inductor L3.
Preferably, the VCC voltage is the same as the full rated voltage of the battery BAT.
Preferably, the charging unit comprises a battery BAT, a charger U2, a light emitting diode LED2 and a resistor R3, wherein the model of the charger U2 is PT 6102;
pin 4 of charger U2 is connected to +5V supply voltage, pin 4 of charger U2 is connected to the anode of LED2 through resistor R3, the cathode of LED2 is connected to pin 1 of charger U2, and pin 3 of charger U2 is connected to the anode of battery BAT.
Has the advantages that: compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the first power supply unit and the second power supply unit can both supply power to the Ethernet switch, when the first power supply unit works normally, the second power supply unit is disconnected, and when the first power supply unit fails, the second power supply unit is automatically connected for supplying power, so that the stability of the Ethernet switch and the monitoring device is improved; when the first power supply unit can normally work after the fault is removed, the second power supply unit is automatically disconnected, so that the energy is saved, and the automation degree is high;
2. in the utility model, two light emitting diodes are arranged in the alarm unit connected with the first power supply unit, and the state of each local circuit in the first power supply unit can be identified by using the light emitting diodes, so that fault points can be conveniently found out;
3. according to the utility model, the first power supply unit can charge the second power supply unit when working normally, so that the full electric quantity of the second power supply unit is ensured.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a circuit diagram of the power module of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure of the present invention, the present invention will now be further described with reference to the accompanying drawings.
The utility model discloses a station control layer monitoring device based on an Ethernet switch, which comprises a measurement and control module, the Ethernet switch, a server and a power supply module, wherein the measurement and control module is connected with the Ethernet switch, the Ethernet switch is connected with the server, and the power supply module is connected with the Ethernet switch; wherein:
the measurement and control module is used for acquiring a controllable outlet function of real-time data;
the Ethernet switch is used for transmitting real-time data and control commands;
the server is used for finishing the output of real-time data and the generation and execution of control commands;
the power supply module is used for outputting power supply voltage to supply power to the microprocessor in the Ethernet switch.
The power module comprises a first power supply unit, a second power supply unit, a charging unit and an automatic switching unit, as shown in fig. 1, the first power supply unit and the second power supply unit are both connected with the ethernet switch, the charging unit is connected with the second power supply unit, and the automatic switching unit is respectively connected with the first power supply unit and the second power supply unit; wherein:
the first power supply unit and the second power supply unit are used for generating power supply voltage to supply power to a microprocessor in the Ethernet switch;
the charging unit is used for charging the second power supply unit for standby use;
the automatic switching unit is used for realizing circuit switching between the first power supply unit and the second power supply unit.
In the utility model, as shown in fig. 2, the first power supply unit comprises a voltage regulation chip U1, the model of the voltage regulation chip U1 is AMS1117-3.3V, the chip AMS1117-3.3V is a forward low-voltage regulator, the fixed output voltage is 3.3V, and an overheat protection and current limiting circuit is integrated inside, so that the first power supply unit is the best choice for battery power supply and a portable computer.
Pin 1 of the voltage stabilizing chip U1 is grounded, pin 3 of the voltage stabilizing chip U1 is grounded through a capacitor C1 and a capacitor C2 which are connected in parallel, pin 3 of the voltage stabilizing chip U1 is connected with +5V power voltage through a diode D1, the anode of a diode D1 is connected with +5V power voltage, pin 4 of the voltage stabilizing chip U1 is grounded through a capacitor C3 and a capacitor C4 which are connected in parallel, pin 4 of the voltage stabilizing chip U1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with one end of an inductor L2 through a capacitor C5 and a capacitor C6 which are connected in parallel, the other end of the inductor L2 is grounded, the other end of the inductor L1 is connected with the anode of a diode D3, the cathode of a diode D3 is connected with the output end of the power module, and +3.3V power supply voltage is output.
In an embodiment of the present invention, the power module further includes an alarm unit connected to the first power supply unit, as shown in fig. 2, the alarm unit includes a light emitting diode LED1 and a light emitting diode LED3, an anode of the light emitting diode LED1 is connected to a +5V power voltage, a cathode of the light emitting diode LED1 is connected to one end of a resistor R1, and the other end of the resistor R1 is grounded; the anode of the light emitting diode LED3 is connected with the anode of the diode D3, the cathode of the light emitting diode LED3 is connected with one end of the resistor R10, and the other end of the resistor R10 is grounded.
When the first power supply unit normally works, the anode of the light emitting diode LED1 is connected with +5V voltage, the anode of the light emitting diode LED3 is connected with +3.3V voltage, the voltage and the current of the light emitting diode LED1 and the light emitting diode LED3 respectively reach the driving voltage and the driving current by adjusting the resistance values of the resistor R1 and the resistor R10, and at the moment, the light emitting diode LED1 and the light emitting diode LED3 normally emit light.
When the first power supply unit fails, the following two situations are divided:
the fault point occurs in the +5V power supply voltage and a previous loop, the first power supply unit is completely disconnected at the moment, the anodes of the light-emitting diode LED1 and the light-emitting diode LED3 have no voltage input, and the diode LED1 and the light-emitting diode LED3 do not emit light at the moment;
the fault point occurs between the +5V power voltage and the diode D3, at this time, the first power supply unit is locally disconnected, the +5V voltage is still connected to the anode of the light emitting diode LED1, the voltage and current of the light emitting diode LED1 reach the driving voltage and driving current thereof, at this time, the light emitting diode LED1 normally emits light, the anode of the light emitting diode LED3 has no voltage input, and at this time, the light emitting diode LED3 does not emit light.
In the utility model, as shown in fig. 2, the second power supply unit comprises a battery BAT and a voltage conversion chip U3, the full voltage of the battery BAT is less than 5V, the battery BAT can be a 4.2V lithium battery or a 3.7V lithium battery, the model of the voltage conversion chip U3 is NCP1402SN33, the chip NCP1402SN33 is a switching regulator, and 3.3V voltage and maximum output current of 200mA can be output under the input voltage of 0.8V-5V.
Pin 4 of the voltage conversion chip U3 is grounded, pin 5 of the voltage conversion chip U3 is connected to the drain of the fet Q1 through an inductor L3, the source of the fet Q1 is connected to the anode of the battery BAT, the cathode of the battery BAT is grounded, the drain of the fet Q1 is grounded through a capacitor C8, pin 5 of the voltage conversion chip U3 is connected to the anode of a diode D2, pin 1 and pin 2 of the voltage conversion chip U3 are connected to the cathode of a diode D2 after being short-circuited, the cathode of a diode D2 is grounded through a capacitor C9, the cathode of the diode D2 is connected to the anode of a diode D4, and the cathode of the diode D4 is connected to the output terminal of the power supply module to output +3.3V supply voltage.
In the present invention, as shown in fig. 2, the charging unit comprises a battery BAT and a charger U2, the model number of the charger U2 is PT6102, PT6102 is a single lithium ion battery charger with high integration, and the small number of external components makes it very suitable for portable applications. PT6102 internal integration power tube, no external detection resistor and anti-backflow diode are needed, the charging current is set through the external resistor, the charging end voltage is fixed at 4.2V. The thermal feedback can automatically adjust the charging current, and can protect the chip under high power or high ambient temperature. PT6102 charging is carried out in three stages: trickle charging when the battery voltage is lower than 2.9V, constant current charging when the battery voltage is higher than 2.9V, and trickle charging current is 1/10 of constant current charging current, constant voltage charging is carried out when the battery voltage reaches 4.2V, the charging current is gradually reduced in the constant voltage charging process, and the charging process is ended when the battery voltage is reduced to 1/10 of the constant current charging current; after the charging is finished, the PT6102 will monitor the battery voltage, and when the voltage drops below 4.05V, the chip will be charged again.
Pin 4 of charger U2 is connected with +5V power voltage, pin 4 of charger U2 is grounded through capacitor C7, pin 4 of charger U2 is connected with the positive pole of light emitting diode LED2 through resistor R3, the negative pole of light emitting diode LED2 is connected with pin 1 of charger U2, light emitting diode LED2 is used for displaying the charging state, pin 5 of charger U2 is grounded through resistor R2, pin 2 of charger U2 is grounded, pin 3 of charger U2 is connected with the positive pole of battery BAT to charge battery BAT.
In the utility model, as shown in fig. 2, the automatic switching unit comprises a field effect transistor Q1, a field effect transistor Q2 and a field effect transistor Q3, the model of the field effect transistor Q1 and the model of the field effect transistor Q2 are IRF5210, and the model of the field effect transistor Q3 is 2N 7002.
The source of the field effect transistor Q3 is grounded, the gate of the field effect transistor Q3 is connected with the anode of the diode D3 through the resistor R8, the drain of the field effect transistor Q3 is connected with the gate of the field effect transistor Q2 through the resistor R7, the gate of the field effect transistor Q2 is connected with VCC voltage through the resistor R6, the source of the field effect transistor Q2 is connected with VCC voltage, preferably, the VCC voltage is full-rated voltage of the battery BAT, the drain of the field effect transistor Q2 is grounded through the resistor R4 and the resistor R5 which are connected in series, the gate of the field effect transistor Q1 is connected with the common end of the resistor R4 and the resistor R5, the source of the field effect transistor Q1 is connected with the anode of the battery BAT, the drain of the field effect transistor Q1 is connected with one end of the inductor L3, and the other end of the inductor L3 is connected with the pin 5 of the voltage conversion chip U3.
When the first power supply unit normally works, the grid electrode of the field-effect tube Q3 is connected with 3.3V voltage, the grid-source voltage of the field-effect tube Q3 is 3.3V and is greater than the grid-source threshold voltage (0.7V-1.4V) of the field-effect tube Q3, and the field-effect tube Q3 is conducted; after the field-effect transistor Q3 is switched on, current flows through the resistor R7, and as the resistance value of the resistor R7 is far smaller than that of the resistor R6, the gate voltage of the field-effect transistor Q2 is about VCC voltage, at the moment, the gate-source voltage of the field-effect transistor Q2 is VCC which is smaller than the gate-source threshold voltage of the field-effect transistor Q2, and the field-effect transistor Q2 is switched on; after the field-effect transistor Q2 is switched on, current flows through the resistor R4, and as the resistance value of the resistor R4 is far smaller than that of the resistor R5, the gate voltage of the field-effect transistor Q1 is about VCC voltage, at the moment, the gate-source voltage of the field-effect transistor Q1 is 0V, the field-effect transistor Q1 is switched off, and the second power supply unit cannot supply power;
similarly, when the first power supply unit fails, the field effect transistor Q3 and the field effect transistor Q2 are automatically cut off, the field effect transistor Q1 is automatically switched on, and the second power supply unit automatically supplies power;
when the first power supply unit recovers power supply after the fault is removed, the field effect transistor Q3 and the field effect transistor Q2 are automatically switched on, the field effect transistor Q1 is automatically switched off, and the second power supply unit stops power supply.
The working process of the utility model is as follows:
when the first power supply unit has no fault, the first power supply unit supplies power to a microprocessor in the Ethernet switch, and at the moment, the light-emitting diode LED1 and the light-emitting diode LED3 emit light normally; the second power supply unit does not supply power, and the charging unit charges the battery in the second power supply unit until the electric quantity of the battery reaches full-scale voltage;
when the first power supply unit fails, the first power supply unit stops supplying power, the second power supply unit is conducted to supply power to the microprocessor in the Ethernet switch, and when the electric quantity of the battery in the second power supply unit is reduced to a certain degree, the charging unit starts to charge the battery; observing the light emitting states of the light emitting diode LED1 and the light emitting diode LED3, if the light emitting diode LED1 and the light emitting diode LED3 do not emit light, a fault point appears on the +5V power supply voltage of the first power supply unit and a circuit before the voltage, and if the light emitting diode LED1 emits light and the light emitting diode LED3 does not emit light, the fault point appears between the +5V power supply voltage of the first power supply unit and the diode D3;
when the first power supply unit gets rid of the fault, the first power supply unit starts to supply power to the microprocessor in the Ethernet switch, the second power supply unit automatically stops supplying power, and the charging unit charges the battery in the second power supply unit until the electric quantity of the battery reaches full-scale voltage.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims (7)

1. A station control layer monitoring device based on an Ethernet switch is characterized by comprising a measurement and control module, the Ethernet switch, a server and a power supply module, wherein the measurement and control module is connected with the Ethernet switch, the Ethernet switch is connected with the server, the power supply module is connected with the Ethernet switch, and the power supply module outputs power supply voltage to supply power for the Ethernet switch;
the power module comprises a first power supply unit, a second power supply unit, a charging unit and an automatic switching unit, the first power supply unit and the second power supply unit are both connected with the Ethernet switch, the charging unit is connected with the second power supply unit, and the automatic switching unit is respectively connected with the first power supply unit and the second power supply unit.
2. The station control layer monitoring device based on the Ethernet switch as claimed in claim 1, wherein the first power supply unit comprises a voltage stabilization chip U1, a diode D1, a diode D3 and an inductor L1, wherein the model of the voltage stabilization chip U1 is AMS 1117-3.3V;
pin 3 of the voltage stabilizing chip U1 is connected with +5V power voltage through a diode D1, the anode of the diode D1 is connected with +5V power voltage, pin 4 of the voltage stabilizing chip U1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with the anode of a diode D3, and the cathode of the diode D3 is connected with the output end of a power module to output +3.3V power supply voltage.
3. The station control layer monitoring device based on the Ethernet switch as claimed in claim 2, wherein the power module further comprises an alarm unit, the alarm unit is connected with the first power supply unit, and the alarm unit comprises a light emitting diode LED1, a light emitting diode LED3, a resistor R1 and a resistor R10;
the anode of the light-emitting diode LED1 is connected with +5V power voltage, the cathode of the light-emitting diode LED1 is connected with one end of a resistor R1, and the other end of the resistor R1 is grounded;
the anode of the light emitting diode LED3 is connected with the anode of the diode D3, the cathode of the light emitting diode LED3 is connected with one end of the resistor R10, and the other end of the resistor R10 is grounded.
4. The station control layer monitoring device based on the Ethernet switch as claimed in claim 2, wherein the second power supply unit comprises a battery BAT, a voltage conversion chip U3, a field effect transistor Q1, a diode D2, a diode D4 and an inductor L3, wherein the model of the voltage conversion chip U3 is NCP1402SN 33;
pin 5 of the voltage conversion chip U3 is connected to the drain of the fet Q1 through the inductor L3, the source of the fet Q1 is connected to the positive electrode of the battery BAT, the negative electrode of the battery BAT is grounded, pin 5 of the voltage conversion chip U3 is connected to the positive electrode of the diode D2, pin 1 and pin 2 of the voltage conversion chip U3 are connected to the negative electrode of the diode D2 after short-circuited, the negative electrode of the diode D2 is connected to the positive electrode of the diode D4, and the negative electrode of the diode D4 is connected to the output terminal of the power module, so as to output a +3.3V supply voltage.
5. The station control layer monitoring device based on the Ethernet switch as claimed in claim 4, wherein the automatic switching unit comprises a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and a resistor R8, wherein the type of the field effect transistor Q1 and the type of the field effect transistor Q2 are IRF5210, and the type of the field effect transistor Q3 is 2N 7002;
the source of the field effect transistor Q3 is grounded, the gate of the field effect transistor Q3 is connected with the anode of the diode D3 through the resistor R8, the drain of the field effect transistor Q3 is connected with the gate of the field effect transistor Q2 through the resistor R7, the gate of the field effect transistor Q2 is connected with VCC voltage through the resistor R6, the source of the field effect transistor Q2 is connected with VCC voltage, the drain of the field effect transistor Q2 is grounded through the resistor R4 and the resistor R5 which are connected in series, the gate of the field effect transistor Q1 is connected with the common end of the resistor R4 and the resistor R5, the source of the field effect transistor Q1 is connected with the anode of the battery BAT, and the drain of the field effect transistor Q1 is connected with one end of the inductor L3.
6. The Ethernet switch-based station control layer monitoring device of claim 5, wherein the VCC voltage is the same as the full rated voltage of the battery BAT.
7. The station control layer monitoring device based on the Ethernet switch as claimed in claim 1, wherein the charging unit comprises a battery BAT, a charger U2, a light emitting diode LED2 and a resistor R3, wherein the type of the charger U2 is PT 6102;
pin 4 of charger U2 is connected to +5V supply voltage, pin 4 of charger U2 is connected to the anode of LED2 through resistor R3, the cathode of LED2 is connected to pin 1 of charger U2, and pin 3 of charger U2 is connected to the anode of battery BAT.
CN202122102455.2U 2021-09-02 2021-09-02 Station control layer monitoring device based on Ethernet switch Active CN215934518U (en)

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Application Number Priority Date Filing Date Title
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