CN107481494A - A kind of wideband power is registered one's residence the master control borad of terminal system - Google Patents

A kind of wideband power is registered one's residence the master control borad of terminal system Download PDF

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Publication number
CN107481494A
CN107481494A CN201710681597.4A CN201710681597A CN107481494A CN 107481494 A CN107481494 A CN 107481494A CN 201710681597 A CN201710681597 A CN 201710681597A CN 107481494 A CN107481494 A CN 107481494A
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module
pin
data
master control
control borad
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覃柳思
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Guangxi University
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Guangxi University
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

A kind of master control borad for terminal system of being registered one's residence the invention provides wideband power, it is integrated with ethernet module, power supply interface module, indicating lamp module, MCU module, it can get up intelligent electric meter, power transfer module, switch module organic connections, and then whether normal work is monitored to each module.Pass through control of the master control borad to the data uplink of energy terminal system, grid company can read the user power utilization information that intelligent electric meter gathers by grid company Server remote, user can input WEB server address in a browser by computer simultaneously, and the user power utilization information of intelligent electric meter collection is checked from webpage.Pass through control of the master control borad to the data downstream of energy terminal system, intelligent electric meter performs corresponding operation when grid company can be issued an instruction to remotely, user can input WEB server address in a browser by computer simultaneously, and the information that grid company transmits is checked from webpage.

Description

A kind of wideband power is registered one's residence the master control borad of terminal system
Technical field
The present invention relates to a kind of master control borad, specifically a kind of wideband power is registered one's residence the master control borad of terminal system, belongs to communication Equipment part technical field.
Background technology
With the development of society, almost every household has all accessed internet, and the equipment of each family online at present Often more than one, as desktop computer needs to surf the Net, smart mobile phone needs to surf the Net, and intelligent television needs to surf the Net, not far Future, family can enter the Internet of things era, and then refrigerator, air-conditioning, television set are also required for accessing internet.If these Netting twine is dependent on during equipment networking, configuration can be caused in disorder, if networked using wireless router, there can be letter again The problems such as number unstable, serious interference.Due to largely needing the equipment networked all to be powered by power line, if utilized The network signal registered one's residence is modulated in the power line of registering one's residence of family by power line carrier technology, all smart machines in such family Both can be powered by power line, can also be by power line communicationses, so as to solve problem above well.
Meanwhile at the beginning of 21 century, the concept of intelligent grid is it is also proposed in terms of power network.Traditional power system monitor needs to rely on Substantial amounts of manpower progress ammeter's reading meter, equipment inspection, circuit lead to the operations such as short control, and its operational efficiency is low, Frequent Troubles, people Power cost is high.Therefore related intelligent power grid technology is needed badly on the market to substitute manpower, utilizes intelligent power grid technology, you can is realized The multiple functions such as remote meter reading, remote failure detection, remote failure isolation, remote control.
Registered one's residence terminal system therefore, we devise a kind of wideband power, it is realizing the same of intelligent grid basic function When, additionally it is possible to if the network signal registered one's residence is modulated in the electric power output bus of family, make all intelligence in user family Equipment need not be additionally carried out network design, you can realize stable online using original power line.The terminal system is by intelligence Ammeter, power transfer module, switch module, master control borad, Homeplug module and line related composition, wherein intelligent electric meter, electricity Source modular converter, switch module, Homeplug module can directly use existing product, therefore master control borad then becomes the end The design key of end system.
The content of the invention
A kind of master control borad for terminal system of being registered one's residence it is an object of the invention to provide wideband power, it is played in terminal system By intelligent electric meter, power transfer module, switch module organic connections get up and control data uplink and downlink effect.
The concrete technical scheme of the present invention is as follows：
A kind of wideband power is registered one's residence the master control borad of terminal system, and it is integrated with ethernet module, power supply interface module, indicator lamp mould Block, MCU module；Ethernet module uses USR-TCP232-E2 embedded ethernet modules, and it is internally integrated WEB server work( Can, its network interface end is provided with the 3rd RJ45 port of the switch module of netting twine connection terminal system, the connection of its signal end To MCU module；Power supply interface module accepts the power supply of power transfer module, and then is converted into multiple voltage interface and enters for master control borad Row power supply；Indicating lamp module is provided with 2 relay indicating lights and one group of colorful indicator lamp, indicating lamp module are connected with MCU module And the working condition of whole master control borad is indicated by relay indicating light；MCU module is by STM32 family chips and peripheral circuit Form, its main control part as whole master control borad, it is provided with RS485 interfaces and passes through RS485 buses and the intelligence of terminal system The RS485 interfaces of energy ammeter are connected.
This wideband power register one's residence terminal system master control borad intelligent electric meter, power transfer module, switch module is organic Connect, and then whether normal work is monitored to each module.By master control borad to can terminal system data uplink Control, grid company can read the user power utilization information that intelligent electric meter gathers, while user by grid company Server remote WEB server address can be inputted in a browser by computer, the user power utilization information of intelligent electric meter collection is checked from webpage.It is logical Control of the master control borad to the data downstream of energy terminal system is crossed, intelligent electric meter performs phase when grid company can be issued an instruction to remotely The operation answered, while user can input WEB server address in a browser by computer, check that grid company transmits from webpage Information.
Brief description of the drawings
Fig. 1 is the connection signal of the hardware composition and master control borad of master control borad of the present invention in terminal system with other modules Figure.
Fig. 2 is the byte format of the communication protocol of master control borad and intelligent electric meter.
Fig. 3 is the frame format of the communication protocol of master control borad and intelligent electric meter.
Fig. 4 is the circuit diagram of the MCU module of master control borad.
Fig. 5 is the RS485 interface conversion circuit figures of MCU module.
Fig. 6 is MCU module and the interface circuit figure of ethernet module.
Fig. 7 is the core circuit connection figure of the ethernet module of master control borad.
Fig. 8 is the circuit diagram of the power supply interface module of master control borad.
Fig. 9 is the circuit diagram of the indicating lamp module relay indicating light of master control borad.
Figure 10 is the up workflow diagram of master control borad control data.
Figure 11 is master control borad control data downlink working flow chart.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, this wideband power is registered one's residence, the master control borad of terminal system is integrated with ethernet module, power interface mould Block, indicating lamp module, MCU module；Ethernet module uses USR-TCP232-E2 embedded ethernet modules, and it is internally integrated WEB server function, its network interface end are provided with the 3rd RJ45 port of the switch module of netting twine connection terminal system, Its signal end is connected to MCU module；Power supply interface module accepts the power supply of power transfer module, and then is converted into multiple voltage and connects Mouth is powered for master control borad；Indicating lamp module is provided with 2 relay indicating lights and one group of colorful indicator lamp, indicating lamp module with MCU module is connected and the working condition of whole master control borad is indicated by relay indicating light；MCU module is by STM32 series Chip and peripheral circuit are formed, its main control part as whole master control borad, and it is provided with RS485 interfaces and passes through RS485 buses It is connected with the RS485 interfaces of the intelligent electric meter of terminal system.
The communication protocol of master control borad and intelligent electric meter sets as follows：
1）, byte format
Contain 8 binary codes per byte, add a start bit during transmission（0）, even parity bit and a stop position（1）, Totally 11.It transmits sequence as shown in Fig. 2 D0 is the least significant bit of byte, and D7 is the highest significant position of byte, is first passed Low level, it is rear to pass a high position.
2）, frame format
Frame format is as shown in Figure 3.Check code part in frame format generates according to following algorithm：
（1）By the data of start-of-frame until the total data in frame data domain is arranged according to the binary sequence of 0 and 1, The a lot of sequence being made up of 0 and 1 is formed, is designated as K；
（2）Following groups number is set：a、1011；b、1001 10；c、1101 0011；d、1101 0011 10；f、1011 1111 1101 ；g、1011 1110 0011 0101；
（3）Arbitrary sequence in sequence K and a to f is subjected to XOR, which specifically chosen sequence is according to practical communication speed Rate, the tolerance to mistake are determined, and 8bit parity check bit is then added in operation result, by whole total need Want sequence to be put into check bit and be used as overall verification data.
3）, frame format data field part
In order to further increase the fault-tolerance of data, allow wrong data to be easier to be found, at the end of frame format data field, add Add a numeral, this numeral is all digital sums of data field.Because the data variation of intelligent electric meter will not in short time energy It is very big, but if when running into the strong jammings such as thunderbolt, large-size machine startup, signal line often expires inclined or zero setting, this When partly or wholly data conversion it is very big, in server end, we judge this by carrying out derivation to this numeral The ride comfort of derivative, you can find whether the numeral of whole frame is reliable, so as to which not reliable data be abandoned.
The MCU module is made up of STM32F103 chips and peripheral circuit, its main control part as whole master control borad； As shown in Fig. 2 respectively as signal receiving end RXD and letter after the 68 of STM32F103 chips, 69 pin difference series resistor R3, R41 12 and 13 pin of number transmitting terminal TXD, STM32F103 chip connect outer clock circuit, and 14 pin connect reset circuit；VDD3.3V is terminated Inductance L1 one end, inductance L1 another termination capacitor C3 and C4 one end, electric capacity C3 and C4 other end ground connection, inductance L1's The other end terminates 22 pin into STM32F103 chips as VDDA；VDD5V ends are converted to standard 3.3V electricity through REF3133 chips 21 pin of STM32F103 chips are inputted behind source, then series resistor R12 as benchmark positive voltage VREF+ ends, resistance R12 both ends Also serial capacitance C9, C10 is followed by PGND ends respectively；50,75,100,28,11 pin of STM32F103 chips connect VDD3.3V ends, VDD3.3V termination capacitors C13~C20 one end, electric capacity C13~C20 other end ground connection；It is total that the MCU module is provided with RS485 Line interface is simultaneously connected by RS485 buses with the RS485 interfaces of intelligent electric meter, as shown in figure 3, the 47 of STM32F103 chips, 4 pin and 1 pin of RS485 interface communication chip MAX485 chips, STM32F103 cores are accessed after 48 pin difference series resistor R6, R40 52 pin of piece connect the 2 of MAX485 chips, 3 pin, and 8 pin of MAX485 chips connect VDD5V ends, and 5 pin ground connection, 7 pin and 6 pin connect respectively RS485 crossover subs J1 1 pin and 2 pin, resistance R2 is also associated between 7 pin and 6 pin of MAX485 chips；The MCU module Also it is connected by super network interface USR-K3 with ethernet module, as shown in figure 4, the signal receiving end RXD of STM32F103 chips Connect super network interface USR-K3 8 pin and 9 pin respectively with signal sending end TXD.
The ethernet module uses USR-TCP232-E2 embedded ethernet modules, and it is used for the data of MCU module Carry out protocol conversion, data extraction, data are packed and uploaded onto the server, be also integrated with WEB server function inside it.Pass through This module, domestic consumer can input the address of WEB server on the computer browser in own home, can so pass through Computer see intelligent electric meter all information and grid company passback information, including power consumption, remaining electric charge, electric power, Active power, reactive power, quality of power supply situation, harmonic wave situation etc..The network interface end of the ethernet module is provided with netting twine The 3rd RJ45 port of switch module is connected, its signal end is connected to MCU module, and it has been internally integrated TCP/IP agreements Stack, TCP network packets or UDP message bag can be realized transparent transmission with TTL serial datas using this module, its core Circuit connection diagram is as figure 5 illustrates.
The power supply interface module accepts the power supply of power transfer module, and then is converted into the multiple voltages such as 5V, 3.3V and connects Mouth is powered for master control borad, and the circuit diagram of power supply interface module is as shown in fig. 6, the 12V electricity that power transfer module transmits Source forms input power VIN ends after fuse FUSE1, and input power VIN ends are through adjustable voltage stabilizing chip LM2596-ADJ chips VCC6.5V ends are formed after regulation；VCC6.5V ends form VDD3.3V ends after voltage stabilizing chip REG1117-3.3 chip voltages； VCC6.5V ends form VDD5V ends after adjustable voltage stabilizing chip LP3856-ADJ chips regulation；VDD5V ends connection resistance R26's One end, it is grounded after resistance R26 other end series resistor R28, the resistance R26 other end also connects STM32F103 cores as output 18 pin AD_DCIN ends of piece；One end of VCC6.5V termination TR5V L-S-Z relay RELAY1 coils and bearing for diode D2 Pole, the other end of relay RELAY1 coils and diode D2 positive pole connect NPN triode Q3 colelctor electrode, triode jointly Q3 emitting stage ground connection, base stage connecting resistance R25 and R27 one end, 15 pin of resistance R25 another termination STM32F103 chips JD_5V ends, resistance R27 other end ground connection, relay RELAY1 movable contact connect VDD5V ends, and relay RELAY1's is normally opened Form outwards output VCC5V ends after stationary contact series resistor R21, must ensure to input 18 pin AD_ of STM32F103 chips during use The voltage at DCIN ends, the voltage-drop loading at 15 pin JD_5V ends of STM32F103 chips can be just set to make three to triode Q3 base stage Pole pipe Q3 is turned on, and relay RELAY1 coils obtain electric adhesive, and relay RELAY1 movable contact connects normally opened stationary contact, VDD5V Hold and power to VCC5V ends and outwards export.
The indicating lamp module is provided with 2 relay indicating lights and one group of colorful indicator lamp, indicating lamp module and MCU module phase Connect simultaneously the working condition of whole master control borad is indicated by relay indicating light, relay indicating light part as shown in fig. 7, VDD5V ends series resistor R13 is followed by indicator lamp Fault positive pole, and indicator lamp Fault negative pole connects the current collection of NPN triode Q1 Pole, accesses triode Q1 base stage after 31 pin series resistor R18 of STM32F103 chips, triode Q1 grounded emitter, if Operation irregularity, then lighted by MCU module control indicator lamp Fault；VDD5V ends series resistor R14 is being followed by indicator lamp Run just Pole, indicator lamp Run negative pole connect NPN triode Q2 colelctor electrode, accessed after 32 pin series resistor R19 of STM32F103 chips Triode Q2 base stage, triode Q2 grounded emitter, if working properly, lighted by MCU module control indicator lamp Run.
As shown in Figure 8 and Figure 9, the control workflow of the master control borad includes two portions of data uplink and data downstream Point, it is specific as follows：
（1）Data uplink workflow
a）Electricity, initialization in each module；
b）MCU module checks that intelligent ammeter module, power transfer module, switch module, Homeplug module, ethernet module are It is no normal, if it find that abnormal, indicating lamp module instruction failure；
c）MCU module reads the data message of intelligent electric meter by RS485 interfaces, data message includes but be not limited to power consumption, Dump energy, active power, reactive power, harmonic wave situation, the information of the quality of power supply, if it find that abnormal, indicating lamp module refers to Show failure；
d）MCU module is integrated obtained data message according to the form of master control borad and the communication protocol of intelligent electric meter, and Check code is added, then is uploaded to ethernet module, grid company clothes are upload the data to through switch module by ethernet module The WEB server that business device and ethernet module are internally pointed to；
e）Grid company can read the user power utilization information that intelligent electric meter gathers, while user by grid company Server remote WEB server address can be inputted in a browser by computer, the user power utilization information of intelligent electric meter collection is checked from webpage.
（2）Data downstream workflow
a）Electricity, initialization in each module；
b）MCU module checks that intelligent ammeter module, power transfer module, switch module, Homeplug module, ethernet module are It is no normal, if it find that abnormal, indicating lamp module instruction failure；
c）The IP address of interception data and corresponding port numbers are set in MCU module；
d）Grid company server sends director data and is passed to ethernet module by interchanger, then by ethernet module by data MCU module is sent to, the data to be intercepted of MCU module control, if running into the data for needing to intercept, is parsed, analyzes it Control instruction, and transmit in the WEB server being internally pointed to intelligent electric meter and ethernet module, as MCU module is detectd for a long time It can't hear data, indicating lamp module instruction failure；
e）MCU module is transmitted control instruction to intelligent electric meter by RS485 interfaces, and intelligent electric meter performs control instruction, such as disconnected Electricity etc.；User can input WEB server address in a browser by computer, and the information that grid company transmits is checked from webpage, Such as electricity price change situation.
In the step e of data downstream workflow）In, the grid company that MCU module receives according to ethernet module is sent out The information gone out is analyzed, and same data message is sent in WEB server, and user is seen accordingly by computer browser Information, and several data reference values are inputted by browser, the reference value that MCU module inputs user store and and power network The data that company sends are compared, and calculate the size of deviation, and MCU module controls indicating lamp module according to the size of deviation value Colorful indicator lamp indicated with different colors, while will deviate from value and send to allowing user to see in WEB server.Example Such as：User can see the electricity price information that grid company is sent, and the ginseng of the several electricity prices of sets itself by computer browser Value is examined, MCU module can calculate the size of deviation, MCU module by the electricity price that grid company is issued compared with reference to electricity price The colorful indicator lamp for controlling indicating lamp module according to the size of deviation value is indicated with different colors, while will deviate from value hair Delivering in WEB server allows user to see.User can be so allowed to be visually known the electricity of electricity price and in-mind anticipation instantly Valency situation, so as to carry out rational utilization of electricity.And then grid company can be adjusted according to power load situation to electricity price.Pass through this Individual setting, user can recognize the situation of change of electricity price much sooner, the electricity consumption situation of flexible modulation itself, can save The electricity charge, and can coordinate grid company to carry out load adjustment in time.
Above-mentioned legend be only the present invention exemplary embodiments, be not intended to limit the invention, it is all the present invention spirit and Any modification made within principle or equivalent substitution and improvement etc., should be included in the scope of the protection.

Claims (5)

  1. The master control borad of terminal system 1. a kind of wideband power is registered one's residence, it is characterized in that：The master control borad is integrated with ethernet module, electricity Source interface module, indicating lamp module, MCU module；Ethernet module uses USR-TCP232-E2 embedded ethernet modules, its WEB server function is internally integrated, its network interface end is provided with the 3rd of the switch module of netting twine connection terminal system RJ45 ports, its signal end are connected to MCU module；Power supply interface module accepts the power supply of power transfer module, and then is converted into Multiple voltage interface is powered for master control borad；Indicating lamp module is provided with 2 relay indicating lights and one group of colorful indicator lamp, instruction Lamp module is connected with MCU module and the working condition of whole master control borad is indicated by relay indicating light；MCU module by STM32 series family chip and peripheral circuit are formed, its main control part as whole master control borad, and it is provided with RS485 interfaces simultaneously It is connected by RS485 buses with the RS485 interfaces of the intelligent electric meter of terminal system；
    The communication protocol of the master control borad and intelligent electric meter is arranged to：
    1）, byte format
    Contain 8 binary codes per byte, add a start bit during transmission（0）, even parity bit and a stop position（1）, Totally 11, D0 is the least significant bit of byte, and D7 is the highest significant position of byte, first passes low level, rear to pass a high position；
    2）, frame format
    Check code part in frame format generates according to following algorithm：
    （1）By the data of start-of-frame until the total data in frame data domain is arranged according to the binary sequence of 0 and 1, The a lot of sequence being made up of 0 and 1 is formed, is designated as K；
    （2）Following groups number is set：a、1011；b、1001 10；c、1101 0011；d、1101 0011 10；f、1011 1111 1101 ；g、1011 1110 0011 0101；
    （3）Arbitrary sequence in sequence K and a to f is subjected to XOR, which specifically chosen sequence is according to practical communication speed Rate, the tolerance to mistake are determined, and 8bit parity check bit is then added in operation result, by whole total need Want sequence to be put into check bit and be used as overall verification data；
    3）, frame format data field part
    At the end of frame format data field, a numeral is added, this numeral is all digital sums of data field, computational methods For：N number of adder unit of MCU module in master control borad is called, each adder unit is only added two numbers, then exports the two Several sums, N/2 adder unit is recalled, be added by foregoing numeral and with two for one group, output and Jin Erzai Call N/4 adder unit, repeat above step, finally draw a numeral with；
    The control workflow of the master control borad includes two parts of data uplink and data downstream, specific as follows：
    （1）Data uplink workflow
    a）Electricity, initialization in each module；
    b）MCU module checks that intelligent ammeter module, power transfer module, switch module, Homeplug module, ethernet module are It is no normal, if it find that abnormal, indicating lamp module instruction failure；
    c）MCU module reads the data message of intelligent electric meter by RS485 interfaces, data message includes but be not limited to power consumption, Dump energy, active power, reactive power, harmonic wave situation, the information of the quality of power supply, if it find that abnormal, indicating lamp module refers to Show failure；
    d）MCU module is integrated obtained data message according to the form of master control borad and the communication protocol of intelligent electric meter, and Check code is added, then is uploaded to ethernet module, grid company clothes are upload the data to through switch module by ethernet module The WEB server that business device and ethernet module are internally pointed to；
    e）Grid company can read the user power utilization information that intelligent electric meter gathers, while user by grid company Server remote WEB server address can be inputted in a browser by computer, the user power utilization information of intelligent electric meter collection is checked from webpage；
    （2）Data downstream workflow
    a）Electricity, initialization in each module；
    b）MCU module checks that intelligent ammeter module, power transfer module, switch module, Homeplug module, ethernet module are It is no normal, if it find that abnormal, indicating lamp module instruction failure；
    c）The IP address of interception data and corresponding port numbers are set in MCU module；
    d）Grid company server sends director data and is passed to ethernet module by interchanger, then by ethernet module by data MCU module is sent to, the data to be intercepted of MCU module control, if running into the data for needing to intercept, is parsed, analyzes it Control instruction, and transmit in the WEB server being internally pointed to intelligent electric meter and ethernet module, as MCU module is detectd for a long time It can't hear data, indicating lamp module instruction failure；
    e）Control instruction is transmitted to intelligent electric meter, intelligent electric meter and performs control instruction by MCU module by RS485 interfaces；User WEB server address can be inputted in a browser by computer, the information that grid company transmits is checked from webpage.
  2. 2. terminal system according to claim 1, it is characterized in that：In the step e of data downstream workflow）In, MCU moulds The information that block is sent always according to the grid company that ethernet module receives is analyzed, and same data message is sent into WEB On server, user sees corresponding information by computer browser, and inputs several data reference values, MCU by browser The reference value that user inputs is stored and compared with the data that grid company is sent by module, calculates the big of deviation Small, MCU module controls the colorful indicator lamp of indicating lamp module to be indicated with different colors according to the size of deviation value, simultaneously Will deviate from value transmission allows user to see to WEB server.
  3. 3. master control borad according to claim 1, it is characterized in that：The MCU module is by STM32F103 chips and peripheral circuit Form, sent out after 68,69 pin difference series resistor R3, R41 of STM32F103 chips respectively as signal receiving end RXD and signal 12 and 13 pin of sending end TXD, STM32F103 chip connect outer clock circuit, and 14 pin connect reset circuit；VDD3.3V terminates inductance L1 one end, inductance L1 another termination capacitor C3 and C4 one end, electric capacity C3 and C4 other end ground connection, inductance L1's is another End terminates 22 pin into STM32F103 chips as VDDA；VDD5V ends are converted to standard 3.3V power supplys through REF3133 chips, then 21 pin of STM32F103 chips are inputted after series resistor R12 as benchmark positive voltage VREF+ ends, resistance R12 both ends are also distinguished Serial capacitance C9, C10 are followed by PGND ends；50,75,100,28,11 pin of STM32F103 chips meet VDD3.3V ends, VDD3.3V Termination capacitor C13~C20 one end, electric capacity C13~C20 other end ground connection；The MCU module is provided with RS485 EBIs, The 4 of RS485 interface communication chip MAX485 chips is accessed after 47,48 pin difference series resistor R6, R40 of STM32F103 chips Pin and 1 pin, 52 pin of STM32F103 chips connect the 2 of MAX485 chips, 3 pin, and 8 pin of MAX485 chips connect VDD5V ends, and 5 pin connect Ground, 7 pin and 6 pin connect RS485 crossover subs J1 1 pin and 2 pin respectively, and electricity is also associated between 7 pin and 6 pin of MAX485 chips Hinder R2；The MCU module is also connected by super network interface USR-K3 with ethernet module, and the signal of STM32F103 chips connects Receiving end RXD and signal sending end TXD connects super network interface USR-K3 8 pin and 9 pin respectively.
  4. 4. master control borad according to claim 1, it is characterized in that：In the power supply interface module, power transfer module transmission The 12V power supplys to come over form input power VIN ends after fuse FUSE1, and input power VIN ends are through adjustable voltage stabilizing chip VCC6.5V ends are formed after the regulation of LM2596-ADJ chips；VCC6.5V ends shape after voltage stabilizing chip REG1117-3.3 chip voltages Into VDD3.3V ends；VCC6.5V ends form VDD5V ends after adjustable voltage stabilizing chip LP3856-ADJ chips regulation；VDD5V ends Resistance R26 one end is connected, is grounded after resistance R26 other end series resistor R28, the resistance R26 other end is also as output Connect 18 pin AD_DCIN ends of STM32F103 chips；VCC6.5V termination TR5V L-S-Z relay RELAY1 coils one end and Diode D2 negative pole, the other end of relay RELAY1 coils and diode D2 positive pole connect NPN triode Q3's jointly Colelctor electrode, triode Q3 emitting stage ground connection, base stage connecting resistance R25 and R27 one end, resistance R25 another termination 15 pin JD_5V ends of STM32F103 chips, resistance R27 other end ground connection, relay RELAY1 movable contact connect VDD5V ends, Outwards output VCC5V ends are formed after relay RELAY1 normally opened stationary contact series resistor R21.
  5. 5. master control borad according to claim 1, it is characterized in that：Relay indicating light part in the indicating lamp module, VDD5V ends series resistor R13 is followed by indicator lamp Fault positive pole, and indicator lamp Fault negative pole connects the current collection of NPN triode Q1 Pole, accesses triode Q1 base stage after 31 pin series resistor R18 of STM32F103 chips, triode Q1 grounded emitter, if Operation irregularity, then lighted by MCU module control indicator lamp Fault；VDD5V ends series resistor R14 is being followed by indicator lamp Run just Pole, indicator lamp Run negative pole connect NPN triode Q2 colelctor electrode, accessed after 32 pin series resistor R19 of STM32F103 chips Triode Q2 base stage, triode Q2 grounded emitter, if working properly, lighted by MCU module control indicator lamp Run.
CN201710681597.4A 2017-08-10 2017-08-10 A kind of wideband power is registered one's residence the master control borad of terminal system Pending CN107481494A (en)

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