CN110264847A - A kind of KNX emulator - Google Patents
A kind of KNX emulator Download PDFInfo
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- CN110264847A CN110264847A CN201910658761.9A CN201910658761A CN110264847A CN 110264847 A CN110264847 A CN 110264847A CN 201910658761 A CN201910658761 A CN 201910658761A CN 110264847 A CN110264847 A CN 110264847A
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- 101000983338 Solanum commersonii Osmotin-like protein OSML15 Proteins 0.000 claims description 3
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- 238000005265 energy consumption Methods 0.000 abstract description 7
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Abstract
The invention discloses a kind of KNX emulators, MCU governor circuit, RS232 communicating circuit, RS485 communicating circuit, KNX signal partial pressure current-limiting circuit, signal simulation interface, KNX signal and the mutual shifting circuit of usb signal, 3.3V voltage regulator circuit and expansion of power supply circuit solve the problems, such as education sector all using the teaching equipment of true KNX causes teaching equipment acquisition cost height, occupied ground area is big, energy consumption is high and teaching cases solidification.
Description
Technical field
The present invention relates to information technology field more particularly to a kind of KNX emulators.
Background technique
KNX is the abbreviation of Konnex, and in May, 1999, Europe three is big bus protocol EIB, BatiBus and EHSA to merge establishment
Konnex association, proposes KNX agreement.The agreement has taken into account the physical layer specification of BatiBus and EHSA based on EIB,
And the advantages that absorbing configuration mode in BatiBus and EHSA, provide the total solution of family, building automatic.
The system that KNX bus is independently of manufacturer and application field is connected to KNX medium by all bus apparatus
Upper (these media include twisted pair, radio frequency, power line or IP/Ethernet), they can carry out information exchange, KNX bus
It is unique global house and building control standard, bus apparatus can be sensor, actuator and controller, for controlling
Building management device, such as can control with lower sensor, actuator and controller:
Illumination, shutter, security system, energy management, heating, ventilation, air-conditioning system, monitoring system, service interface, building
Space control system, long-range control, metering, video control, audio frequency control and white goods etc.;All functions can all pass through one
Unified system is controlled, monitored and is sent information, does not need additional control centre.
KNX technology is introduced education sector by the present invention, is set due to all will cause teaching using the teaching of true KNX equipment
The problem of standby acquisition cost is high, occupied ground area is big, energy consumption is high and teaching cases solidify, so the teaching of true KNX is set
It is standby to be poorly suitable for education sector.
Summary of the invention
For above-mentioned deficiency in the prior art, a kind of KNX emulator provided by the invention solves education sector whole
Cause that teaching equipment acquisition cost is high, occupied ground area is big, energy consumption is high and teaching cases using the teaching equipment of true KNX
The problem of solidification.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows: a kind of KNX emulator, including MCU master control
Circuit, RS232 communicating circuit, RS485 communicating circuit, KNX signal partial pressure current-limiting circuit, signal simulation interface, KNX signal with
The mutual shifting circuit of usb signal, 3.3V voltage regulator circuit and expansion of power supply circuit;
The signal simulation interface is electric with RS232 communicating circuit, RS485 communicating circuit, 3.3V voltage regulator circuit, extension respectively
Source circuit and KNX signal are connect with the mutual shifting circuit of usb signal;
The 3.3V voltage regulator circuit is connect with MCU governor circuit and KNX signal with the mutual shifting circuit of usb signal respectively;
The signal simulation interface is connect with KNX signal partial pressure current-limiting circuit;
The MCU governor circuit respectively with KNX signal partial pressure current-limiting circuit, signal simulation interface, RS485 communicating circuit and
The connection of RS232 communicating circuit.
Further: signal simulation interface includes signal simulation interface P1 and signal simulation interface P2, the signal simulation
Interface P1 respectively with expansion of power supply circuit and KNX signal partial pressure current-limiting circuit connect, the signal simulation interface P2 respectively with
RS232 communicating circuit, MCU governor circuit, KNX signal partial pressure current-limiting circuit, RS485 communicating circuit, 3.3V voltage regulator circuit and KNX
Signal is connect with the mutual shifting circuit of usb signal.
Having the beneficial effect that for above-mentioned further scheme has 32 emulation interfaces on signal simulation interface, can connect simultaneously
Connect 32 KNX driving hardware devices.
Further: the peripheral interface of 3.3V voltage regulator circuit includes: the end 5V, the end 3V3 and the end GND;The 3.3V pressure stabilizing electricity
The end 5V on road is connect with the 5V interface of signal simulation interface P2;The end GND of the 3.3V voltage regulator circuit and signal simulation interface P2
GND interface connection;The 3.3V voltage regulator circuit includes: ground capacity C32, ground capacity C33, ground capacity C34, ground connection electricity
Hold C35 and voltage stabilizing chip LM1117T-3.3;The end Vin of the voltage stabilizing chip LM1117T-3.3 respectively with ground capacity C34 and
Ground capacity C32 connection, and the end 5V as 3.3V voltage regulator circuit;Distinguish at the end Vout of the voltage stabilizing chip LM1117T-3.3
It is connect with ground capacity C33 and ground capacity C35, and the end 3V3 as 3.3V voltage regulator circuit;The voltage stabilizing chip LM1117T-
3.3 end GND respectively with the ground terminal of ground capacity C32, the ground terminal of ground capacity C33, ground capacity C34 ground terminal and
The ground terminal of ground capacity C35 connects, and the end GND as 3.3V voltage regulator circuit.
Above-mentioned further scheme has the beneficial effect that external 5V power input 3.3V voltage regulator circuit, 3.3V voltage regulator circuit
Pressure stabilizing provides operating voltage to 3.3V, for MCU governor circuit and KNX signal and the mutual shifting circuit of usb signal, using LM1117T-
3.3 voltage stabilizing chips make the output noise of 3.3V voltage regulator circuit low, and output ripple is small, inhibit ratio with high channel, are applicable in
In the small signal process circuit power supply to noise-sensitive.
Further: the peripheral interface of MCU governor circuit includes: the end 3V3 and the end GND;The MCU governor circuit includes:
Main control chip STM32F103RCT6, download interface P3, resistance R1, ground resistance R2, pattern switching interface P6, ground capacity C1,
Ground capacity C2, ground capacity C3, ground capacity C4, ground capacity C5, ground capacity C6, ground capacity C7, ground capacity C8,
Ground capacity C9, ground capacity C10, ground capacity C12, crystal oscillator Y2, crystal oscillator Y1 and key SW-PB;The download interface P3's
NRST interface connects with the NRST pin of one end of key SW-PB, ground capacity C12 and main control chip STM32F103RCT6 respectively
It connects;The SWCLK1 interface of the download interface P3 is connect with the PA14 pin of main control chip STM32F103RCT6, and the downloading connects
The SWDIO1 interface of mouth P3 is connect with the PA13 pin of main control chip STM32F103RCT6;One end of the crystal oscillator Y2 respectively with
The PD1 pin of main control chip STM32F103RCT6 is connected with ground capacity C9, the other end of the crystal oscillator Y2 respectively with master control core
The PD0-OSC_IN pin of piece STM32F103RCT6 is connected with ground capacity C10;One end of the crystal oscillator Y1 is electric with ground connection respectively
Hold C1 connected with the PC15-OSC32_OUT pin of main control chip STM32F103RCT6, the other end of the crystal oscillator Y1 respectively with
Ground capacity C8 is connected with the PC14-OSC32_IN pin of main control chip STM32F103RCT6;One end of the resistance R1 and mould
3 pins of formula switching interface P6 connect, and the ground resistance R2 is connect with 1 pin of pattern switching interface P6;The master control core
The VBAT pin of piece STM32F103RCT6 respectively with the VDD_1 pin of main control chip STM32F103RCT6, VDD_2 pin,
VDD_3 pin, VDD_4 pin and VDDA pin, ground capacity C2, ground capacity C3, ground capacity C4, ground capacity C5,
Ground capacity C6, ground capacity C7, the other end of resistance R1 are connected with the 3V3 interface of download interface P3, and as MCU master control electricity
The end 3V3 on road;The VSS_1 pin of the main control chip STM32F103RCT6 is respectively with main control chip STM32F103RCT6's
The ground connection of VSS_2 pin, VSS_3 pin, VSS_4 pin and VSSA pin, the ground terminal of ground capacity C2, ground capacity C3
It holds, the ground connection of the ground terminal of ground capacity C4, the ground terminal of ground capacity C5, the ground terminal of ground capacity C6, ground capacity C7
It holds, the ground connection of the ground terminal of ground resistance R2, the ground terminal of ground capacity C9, the ground terminal of ground capacity C10, ground capacity C1
End, the ground terminal of ground capacity C8, ground capacity C12 ground terminal connected with the other end of key SW-PB, and as MCU master
Control the end GND of circuit;The end 3V3 of the MCU governor circuit is connect with the end 3V3 of 3.3V voltage regulator circuit, the MCU governor circuit
The end GND connect with the end GND of 3.3V voltage regulator circuit.
KNX driving hardware device is accessed KNX by signal simulation interface by having the beneficial effect that for above-mentioned further scheme
Signal divides current-limiting circuit, and KNX signal divides current-limiting circuit and the state output signal of KNX driving hardware device is carried out partial pressure limit
MCU governor circuit is inputted after stream to drive the KNX after MCU governor circuit handles the state output signal of KNX driving hardware device
The state output signal of dynamic hardware device is connect by the communication of communication interface or RS485 communicating circuit in RS232 communicating circuit
Mouth is sent to host computer, and host computer is according to the KNX virtual drive hardware device on the status signal setting computer received
State keeps the state consistency of KNX driving hardware device and KNX virtual drive hardware device, the main control chip of MCU governor circuit
The I/O interface of STM32F103RCT6 includes the I/O interface with the channel AD and the I/O interface without the channel AD, and KNX driving hardware is set
Imitated output quantity in standby divides the IO of current-limiting circuit and main control chip STM32F103RCT6 with the channel AD by KNX signal and connects
It connects.
Further: the peripheral interface of RS232 communicating circuit includes: the end 5V and the end GND;The RS232 communicating circuit packet
It includes: communication chip MAX232AESE, ground capacity C44, capacitor C45, capacitor C47, capacitor C46, ground capacity C48 and RS232
Interface P10;1 pin of the communication chip MAX232AESE is connected by 3 pins of capacitor C45 and communication chip MAX232AESE
It connects, 4 pins of the communication chip MAX232AESE are connect by capacitor C47 with 5 pins of communication chip MAX232AESE, institute
2 pins for stating communication chip MAX232AESE are connect with one end of capacitor C46,16 pins of the communication chip MAX232AESE
It is connect respectively with 1 pin of the other end of capacitor C46, ground capacity C44 and RS232 interface, and as RS232 communicating circuit
The end 5V;7 pins of the communication chip MAX232AESE and 3 pins of RS232 interface connect, the communication chip
8 pins of MAX232AESE and 4 pins of RS232 interface connect, 6 pins and ground connection electricity of the communication chip MAX232AESE
Hold C48 connection, 2 pins of the RS232 interface respectively with the ground terminal of ground capacity C48, ground capacity C44 ground terminal and
15 pins of communication chip MAX232AESE connect, and the end GND as RS232 communicating circuit;The RS232 communicating circuit
The end 5V is connect with the 5V interface of signal simulation interface P2, and the end GND of the RS232 communicating circuit is with signal simulation interface P2's
The connection of GND interface, 10 pins of the communication chip MAX232AESE and the PB11 pin of main control chip STM32F103RCT6 connect
It connects, 9 pins of the communication chip MAX232AESE are connect with the PB10 pin of main control chip STM32F103RCT6.
Further: the peripheral interface of RS485 communicating circuit includes: the end 5V and the end GND;The RS485 communicating circuit packet
It includes: communication chip SP3485 and ground capacity C11;The VCC pin of the communication chip SP3485 is connect with ground capacity C11,
And the end 5V as RS485 communicating circuit;The GND pin of the RS485 communicating circuit and the ground terminal of ground capacity C11 connect
It connects, and the end GND as RS485 communicating circuit;The RO pin and main control chip of the communication chip SP3485
The PC11 pin of STM32F103RCT6 connects, and the RE pin of the communication chip SP3485 is respectively with communication chip SP3485's
DE pin is connected with the PA15 pin of main control chip STM32F103RCT6, the DI pin of the communication chip SP3485 and master control
The PC10 pin of chip STM32F103RCT6 connects, and the B pin of the communication chip SP3485 is with signal simulation interface P2's
The connection of 485B interface, the A pin of the communication chip SP3485 is connect with the 485A interface of signal simulation interface P2, described
The end 5V of RS485 communicating circuit is connect with the 5V interface of signal simulation interface P2, the end GND of the RS485 communicating circuit and letter
The GND interface connection of number emulation interface P2.
Above-mentioned further scheme has the beneficial effect that this emulator passes through RS232 communicating circuit or RS485 communicating circuit
It is communicated with host computer, hardware device quantity is driven according to KNX, moreover it is possible to which this emulation is realized by RS232 interface or RS485 interface
The cascade of device, be multiplied signal simulation interface.
Further: KNX signal and the mutual shifting circuit of usb signal include KNX bus circuit, binary channels isolation circuit and KNX
Download circuit, the KNX bus chip of the KNX bus circuit are NCN5130, and the binary channels of the binary channels isolation circuit is isolated
Chip is ADUM1201, the MCU of the KNX download circuit be STM32F103T8U6, the KNX bus circuit and binary channels every
From circuit connection, the binary channels isolation circuit is connect with KNX download circuit.
Further: the external interface of KNX bus circuit includes the end 3_3 and the end GND;The end 3_3 of the KNX bus circuit
It is connect with binary channels isolation circuit, the end GND of the KNX bus circuit is connect with the end GND of 3.3V voltage regulator circuit, KNX bus
Circuit includes: KNX interface, diode D2, diode D1, resistance R72, resistance R81, resistance R82, capacitor C17, ground capacity
C21, it ground capacity C22, ground capacity C23, capacitor C19, inductance L1, resistance R73, ground capacity C24, ground capacity C14, connects
Ground capacitor C16, ground capacity C18, ground capacity C20 and crystal oscillator Y4;2 feet of KNX interface respectively with diode D1 anode and
The anode connection of diode D2, VBUS1 of the cathode of the diode D1 respectively with one end of capacitor C17, chip NCN5130 draw
Foot, one end of resistance R72, resistance R81 one end connected with one end of resistance R82, the other end and chip of the capacitor C17
The CCP pin of NCN5130 connects;The other end of the resistance R72 other end with the other end of resistance R81, resistance R82 respectively
It is connected with the TXO pin of chip NCN5130;The CAV pin of the chip NCN5130 is connect with ground capacity C21, the chip
The VFILT pin of NCN5130 is connect with ground capacity C22 and with the VIN pin of chip NCN5130 respectively, the chip
The V20V pin of NCN5130 is connect with ground capacity C23, and the CEQ1 pin of the chip NCN5130 passes through capacitor C19 and chip
The CEQ2 pin of NCN5130 connects;The VSW1 pin of the chip NCN5130 is connect with one end of inductance L1, the inductance L1
The other end connect respectively with one end of the VDD1M pin of chip NCN5130 and resistance R73;The other end of the resistance R73 point
It is not connect with the VDD1 pin of ground capacity C24 and chip NCN5130, VDDA pin and VDDD pin, and as KNX bus
The end 3_3 of circuit;The XTAL2 pin of the chip NCN5130 is connect with one end of crystal oscillator Y4 and ground capacity C18 respectively, institute
The XTAL1 pin for stating chip NCN5130 is connect with the other end of crystal oscillator Y4 and ground capacity C20 respectively, the chip NCN5130
VDDA pin connect with ground capacity C14, the VDDD pin of the chip NCN5130 is connect with ground capacity C16, the core
The VSSA pin of piece NCN5130 respectively with 1 foot of KNX interface, the cathode of diode D2, ground capacity C21 ground terminal, ground connection
The ground terminal of capacitor C22, the ground terminal of ground capacity C23, the ground terminal of ground capacity C24, ground capacity C14 ground terminal,
The ground terminal of ground capacity C16, the ground terminal of ground capacity C18, the ground terminal of ground capacity C20 and chip NCN5130
VBUS2 pin, VSS1 pin, VSS2 pin, VSSD pin, XSEL pin, SCK/UC2 pin, CSB/UC1 pin, TREQ draw
Foot, MODE2 pin and the connection of MODE1 pin, and the end GND as KNX bus circuit;The SDO/ of the chip NCN5130
TXD pin is connect with the VOA pin of binary channels isolating chip ADUM1201, the SDI/RXD pin of the chip NCN5130 and double
The VIB pin of channel separation chip ADUM1201 connects.
Further: the external interface of KNX download circuit includes: the end 3V3, the end 5V and the end GND;The KNX download circuit
The end 3V3 connect with the end 3V3 of 3.3V voltage regulator circuit, the end 5V of the KNX download circuit and the 5V of signal simulation interface P2 connect
Mouth connection, the end GND of the KNX download circuit is connect with the end GND of 3.3V voltage regulator circuit;The KNX download circuit includes: to connect
Ground resistance R84, resistance R83, key S1, ground capacity C31, resistance R3, resistance R4, resistance R88, triode Q1, resistance R89,
Double-USB interface, download interface P5, crystal oscillator Y3, ground capacity C13, ground capacity C15, ground capacity C25, ground capacity C26,
Ground capacity C27, ground capacity C28, resistance R74, ground resistance R75, pattern switching interface P8, resistance R85, ground capacity
C49, resistance R86, resistance R87, diode (LED) 1 and diode (LED) 2;The PA1 pin and electricity of the chip STM32F103T8U6
One end connection of R83 is hindered, the other end of the resistance R83 is connect with one end of ground resistance R84 and key S1 respectively, described to press
VDD_1 pin, VDD_2 pin, VDD_3 pin and the VDDA pin of the other end of key S1 and chip STM32F103T8U6 connect
Ground capacitor C31, the emitter of triode Q1, ground capacity C25, ground capacity C26, ground capacity C27, ground capacity C28, electricity
One end, one end of resistance R85 of resistance R74 is connected with 2 pins of download interface P5, and the end 3V3 as KNX download circuit;Institute
The PA11 pin for stating chip STM32F103T8U6 is connect with one end of resistance R3, the other end of the resistance R3 respectively with double USB
6 pins of interface and 2 pins connection, the PA12 pin of the chip STM32F103T8U6 respectively with one end of resistance R4 and electricity
One end connection of R88 is hindered, the other end of the resistance R4 is connect with 3 pins of double-USB interface and 7 pins respectively, the resistance
The other end of R88 is connect with the collector of triode Q1, and the base stage of the triode Q1 is connect with one end of resistance R89, described
The other end of resistance R89 is connect with the PB7 pin of chip STM32F103T8U6, the OSC_ of the chip STM32F103T8U6
IN/PD0 pin is connect with one end of crystal oscillator Y3 and ground capacity C13 respectively, the OSC_OUT/ of the chip STM32F103T8U6
PD1 is connect with the other end of crystal oscillator Y3 and ground capacity C15 respectively, the BOOT0 pin and mould of the chip STM32F103T8U6
2 pins of formula switching interface P8 connect, and 3 pins of the pattern switching interface P8 are connect with the other end of resistance R74, the mould
1 pin of formula switching interface P8 is connect with ground resistance R75, the NRST pin of the chip STM32F103T8U6 respectively with electricity
The other end of resistance R85 is connected with ground capacity C49, the PB5 pin of the chip STM32F103T8U6 and one end of resistance R86
Connection, the PB6 pin of the chip STM32F103T8U6 connect with one end of resistance R87, the other end of the resistance R86 and
The anode connection of diode (LED) 1, the other end of the resistance R87 are connect with the anode of diode (LED) 2, the download interface P5
3 pins connect with the PA13/JTMS/SWDIO pin of chip STM32F103T8U6,4 pins and core of the download interface P5
The PA14/JTCK/SWCLK pin of piece STM32F103T8U6 connects, the VSS_1 pin difference of the chip STM32F103T8U6
With VSS_2 pin, VSS_3 pin and the VSSA pin of chip STM32F103T8U6, the ground terminal of ground resistance R84, ground connection
The ground terminal of capacitor C31,4 pins of double-USB interface, 8 pins of double-USB interface, the ground terminal of ground capacity C13, ground connection electricity
Hold the ground terminal of C15, the ground terminal of ground capacity C18, ground capacity C20 ground terminal, the ground terminal of ground capacity C25, ground connection
The ground terminal of capacitor C26, the ground terminal of ground capacity C27, the ground terminal of ground capacity C28, ground resistance R75 ground terminal,
The ground terminal of ground capacity C49, the cathode of diode (LED) 1, the cathode of diode (LED) 2 are connected with 1 pin of download interface P5,
And the end GND as KNX download circuit;The PA2 pin and binary channels isolating chip of the chip STM32F103T8U6
The VIA pin of ADUM1201 connects, the PA3 pin and binary channels isolating chip ADUM1201 of the chip STM32F103T8U6
VOB pin connection.
Above-mentioned further scheme has the beneficial effect that KNX bus circuit includes KNX interface, and it is total that KNX interface accesses KNX
Line realizes the grid-connected communication of this emulator Yu KNX bus, and KNX bus signals are divided into two-way after KNX interface, and 1 tunnel is for being
KNX bus circuit provides operating voltage, TXO of the another way through resistance R72, resistance R81 and resistance R82 input chip NCN5130
Pin improves circuit load power in such a way that resistance R72, resistance R81 and resistance R82 are in parallel, and KNX bus circuit receives simultaneously
KNX bus signals are handled, and the KNX bus signals after conversion are sent to binary channels isolating chip by UART serial ports
The VOA pin and VIB pin of ADUM1201, binary channels isolation circuit by KNX bus circuit and KNX download circuit carry out power supply every
From the input of the VIA pin of binary channels isolating chip ADUM1201 and the output signal of VOB pin and VOA pin and VIB pin
Signal is identical, and the MCU of KNX download circuit is STM32F103T8U6, and the output for receiving and processing binary channels isolation circuit is believed
Number, and the signal is exported by double-USB interface, triode Q1 is used to switch the communication speed of double-USB interface.Due to USB
Signal transmission on interface, UART serial ports and KNX interface is all two-way, therefore, it can be achieved that KNX signal mutually turns with usb signal;
USB interface is connected with host computer, realizes program or configuration download update that host computer is each equipment in KNX bus,
Host computer can also carry out address administration, parameter setting and data monitoring to the equipment in KNX bus by this emulator.
Further: the peripheral interface of expansion of power supply circuit includes: the end 24V, the end 12V and the end GND;The expansion of power supply electricity
The end 24V on road is connect with the 24V interface of signal simulation interface P1, the end GND of the expansion of power supply circuit and signal simulation interface
The GND interface of P1 connects, and the end 12V of the expansion of power supply circuit is connect with the 12V interface of signal simulation interface P1;The extension
Power circuit include: power supply chip MP1591, resistance R76, ground resistance R78, resistance R77, resistance R79, ground resistance R80,
Ground capacity C40, diode D3, capacitor C36, inductance LI1, ground capacity C39, ground capacity C37, ground capacity C38, ground connection
Capacitor C43 and ground capacity C42;The IN pin of the power supply chip MP1591 respectively with ground capacity C42, resistance R76 one
End is connected with ground capacity C40, and the end 24V as expansion of power supply circuit;The other end of the resistance R76 is electric with ground connection respectively
Resistance R78 connected with the EN pin of power supply chip MP1591, the cathode of the diode D3 respectively with one end of capacitor C36, inductance
One end of LI1 is connected with the SW pin of power supply chip MP1591, and the other end of the capacitor C36 is with power supply chip MP1591's
BST pin connection, the other end of the inductance LI1 respectively with ground capacity C39, ground capacity C37, ground capacity C38 and electricity
Hinder one end connection of R79, and the end 12V as expansion of power supply circuit;One end of the resistance R77 is with power supply chip MP1591's
The connection of COMP pin, the other end of the resistance R77 connect with ground capacity C43, the ground resistance R80 respectively with resistance
The other end of R79 is connected with the FB pin of power supply chip MP1591, and the end GND of the power supply chip MP1591 is electric with ground connection respectively
Hold anode, the ground resistance of the ground terminal of C42, the ground terminal of ground resistance R78, the ground terminal of ground capacity C40, diode D3
The ground terminal of R80, the ground terminal of ground capacity C43, the ground terminal of ground capacity C39, the ground terminal of ground capacity C37 and ground connection
The ground terminal of capacitor C38 connects, and the end GND as expansion of power supply circuit.
Above-mentioned further scheme has the beneficial effect that expansion of power supply circuit at 12V, uses external 24V voltage step-down
The power supply of external equipment in teaching process.
The invention has the benefit that student's KNX control terminal to be operated (KNX HMI controls equipment) and KNX drive end
(KNX drives hardware device) is real equipment, by the untouchable building body of some teaching, construction site and building body or construction
Gao Chengben, large volume, the KNX execution equipment of high energy consumption in scene, such as: KNX air-conditioning, KNX lamp, KNX curtain and KNX are for HVAC
Road etc. all realizes that these KNX execute the emphasis that equipment is not student's study using Unity3D virtual technology, will not reduce teaching
Quality, and upgrade conveniently, can need to change virtual scene according to social development or teaching and increase new teaching cases, it can
Efficiently to complete the teaching task of cognition, KNX programming and KNX configuration of the student to KNX equipment, KNX teaching equipment is substantially reduced
Cost and energy consumption, improve students'learning in safety, enrich practice teaching case, make the learning process of KNX technology
With practice process more close to more really.
Detailed description of the invention
Fig. 1 is a kind of power supply the principle block diagram of KNX emulator;
Fig. 2 is a kind of signal simulation interface principle figure of KNX emulator;
Fig. 3 is a kind of 3.3V voltage regulator circuit schematic diagram of KNX emulator;
Fig. 4 is a kind of MCU governor circuit schematic diagram of KNX emulator;
Fig. 5 is that a kind of KNX signal of KNX emulator divides current-limiting circuit schematic diagram;
Fig. 6 is a kind of RS232 communicating circuit schematic diagram of KNX emulator;
Fig. 7 is a kind of RS485 communicating circuit schematic diagram of KNX emulator;
Fig. 8 is the KNX signal and the mutual shifting circuit schematic diagram of usb signal of a kind of KNX emulator;
Fig. 9 is a kind of simulation teaching device structural schematic diagram of KNX emulator;
Figure 10 is a kind of expansion of power supply circuit diagram of KNX emulator.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
A kind of KNX emulator, including MCU governor circuit, RS232 communicating circuit, RS485 communicating circuit, KNX signal partial pressure
Current-limiting circuit, signal simulation interface, KNX signal and the mutual shifting circuit of usb signal, 3.3V voltage regulator circuit and expansion of power supply circuit;
The signal simulation interface is electric with RS232 communicating circuit, RS485 communicating circuit, 3.3V voltage regulator circuit, extension respectively
Source circuit and KNX signal are connect with the mutual shifting circuit of usb signal;
The 3.3V voltage regulator circuit is connect with MCU governor circuit and KNX signal with the mutual shifting circuit of usb signal respectively;
The signal simulation interface is connect with KNX signal partial pressure current-limiting circuit;
The MCU governor circuit respectively with KNX signal partial pressure current-limiting circuit, signal simulation interface, RS485 communicating circuit and
The connection of RS232 communicating circuit.
As shown in Fig. 1~2, signal simulation interface includes signal simulation interface P1 and signal simulation interface P2, signal simulation
Interface P1 respectively with expansion of power supply circuit and KNX signal partial pressure current-limiting circuit connect, the signal simulation interface P2 respectively with
RS232 communicating circuit, MCU governor circuit, KNX signal partial pressure current-limiting circuit, RS485 communicating circuit, 3.3V voltage regulator circuit and KNX
Signal is connect with the mutual shifting circuit of usb signal.
There are 32 emulation interfaces on signal simulation interface, 32 KNX driving hardware devices, signal simulation can be connected simultaneously
Interface includes 5V interface, 24V interface, 12V interface, GND interface, RS485 interface, IIC interface and sets with each KNX driving hardware
The interface of standby connection, 5V interface connect external 5V power supply with GND interface, for being RS232 communicating circuit, RS485 communicating circuit
It powers with 3.3V voltage regulator circuit, 24V interface is used as needed, connect with external 24V power supply, provides work electricity for expansion of power supply circuit
Source, the teaching equipment that the voltage of expansion of power supply circuit output 12V is powered by the 12V interface and outside 12V of signal simulation interface
Connection, the IIC interface of signal simulation interface is reserved second development interface.
As shown in figure 3, the peripheral interface of 3.3V voltage regulator circuit includes: the end 5V, the end 3V3 and the end GND;The 3.3V pressure stabilizing electricity
The end 5V on road is connect with the 5V interface of signal simulation interface P2;The end GND of the 3.3V voltage regulator circuit and signal simulation interface P2
GND interface connection;The 3.3V voltage regulator circuit includes: ground capacity C32, ground capacity C33, ground capacity C34, ground connection electricity
Hold C35 and voltage stabilizing chip LM1117T-3.3;The end Vin of the voltage stabilizing chip LM1117T-3.3 respectively with ground capacity C34 and
Ground capacity C32 connection, and the end 5V as 3.3V voltage regulator circuit;Distinguish at the end Vout of the voltage stabilizing chip LM1117T-3.3
It is connect with ground capacity C33 and ground capacity C35, and the end 3V3 as 3.3V voltage regulator circuit;The voltage stabilizing chip LM1117T-
3.3 end GND respectively with the ground terminal of ground capacity C32, the ground terminal of ground capacity C33, ground capacity C34 ground terminal and
The ground terminal of ground capacity C35 connects, and the end GND as 3.3V voltage regulator circuit.
External 5V power input 3.3V voltage regulator circuit, 3.3V voltage regulator circuit are MCU master control electricity by 5V voltage pressure stabilizing to 3.3V
Road and the mutual shifting circuit of KNX signal and usb signal provide operating voltage, make 3.3V pressure stabilizing using LM1117T-3.3 voltage stabilizing chip
The output noise of circuit is low, and output ripple is small, inhibits ratio with high channel, suitable for the small signal process to noise-sensitive
Circuit power supply.
As shown in figure 4, the peripheral interface of MCU governor circuit includes: the end 3V3 and the end GND;The MCU governor circuit includes:
Main control chip STM32F103RCT6, download interface P3, resistance R1, ground resistance R2, pattern switching interface P6, ground capacity C1,
Ground capacity C2, ground capacity C3, ground capacity C4, ground capacity C5, ground capacity C6, ground capacity C7, ground capacity C8,
Ground capacity C9, ground capacity C10, ground capacity C12, crystal oscillator Y2, crystal oscillator Y1 and key SW-PB;The download interface P3's
NRST interface connects with the NRST pin of one end of key SW-PB, ground capacity C12 and main control chip STM32F103RCT6 respectively
It connects;The SWCLK1 interface of the download interface P3 is connect with the PA14 pin of main control chip STM32F103RCT6, and the downloading connects
The SWDIO1 interface of mouth P3 is connect with the PA13 pin of main control chip STM32F103RCT6;One end of the crystal oscillator Y2 respectively with
The PD1 pin of main control chip STM32F103RCT6 is connected with ground capacity C9, the other end of the crystal oscillator Y2 respectively with master control core
The PD0-OSC_IN pin of piece STM32F103RCT6 is connected with ground capacity C10;One end of the crystal oscillator Y1 is electric with ground connection respectively
Hold C1 connected with the PC15-OSC32_OUT pin of main control chip STM32F103RCT6, the other end of the crystal oscillator Y1 respectively with
Ground capacity C8 is connected with the PC14-OSC32_IN pin of main control chip STM32F103RCT6;One end of the resistance R1 and mould
3 pins of formula switching interface P6 connect, and the ground resistance R2 is connect with 1 pin of pattern switching interface P6;The master control core
The VBAT pin of piece STM32F103RCT6 respectively with the VDD_1 pin of main control chip STM32F103RCT6, VDD_2 pin,
VDD_3 pin, VDD_4 pin and VDDA pin, ground capacity C2, ground capacity C3, ground capacity C4, ground capacity C5,
Ground capacity C6, ground capacity C7, the other end of resistance R1 are connected with the 3V3 interface of download interface P3, and as MCU master control electricity
The end 3V3 on road;The VSS_1 pin of the main control chip STM32F103RCT6 is respectively with main control chip STM32F103RCT6's
The ground connection of VSS_2 pin, VSS_3 pin, VSS_4 pin and VSSA pin, the ground terminal of ground capacity C2, ground capacity C3
It holds, the ground connection of the ground terminal of ground capacity C4, the ground terminal of ground capacity C5, the ground terminal of ground capacity C6, ground capacity C7
It holds, the ground connection of the ground terminal of ground resistance R2, the ground terminal of ground capacity C9, the ground terminal of ground capacity C10, ground capacity C1
End, the ground terminal of ground capacity C8, ground capacity C12 ground terminal connected with the other end of key SW-PB, and as MCU master
Control the end GND of circuit;The end 3V3 of the MCU governor circuit is connect with the end 3V3 of 3.3V voltage regulator circuit, the MCU governor circuit
The end GND connect with the end GND of 3.3V voltage regulator circuit.
KNX driving hardware device is accessed into KNX signal by signal simulation interface and divides current-limiting circuit, Fig. 5 is KNX signal
Current-limiting circuit is divided, in series by two resistance per partial pressure current-limiting circuit all the way, KNX signal partial pressure current-limiting circuit drives KNX
The state output signal of dynamic hardware device inputs MCU governor circuit after carrying out partial pressure current limliting, and MCU governor circuit handles KNX driving
After the state output signal of hardware device, the state output signal of KNX driving hardware device is passed through in RS232 communicating circuit
Communication interface or the communication interface of RS485 communicating circuit be sent to host computer, host computer is believed according to the state received
The state of KNX virtual drive hardware device on number setting computer, keeps KNX driving hardware device and KNX virtual drive hardware
The state consistency of equipment, the I/O interface of the main control chip STM32F103RCT6 of MCU governor circuit include the I/O interface with the channel AD
With the I/O interface without the channel AD, by KNX drive hardware device in imitated output quantity by KNX signal divide current-limiting circuit with
IO connection of the main control chip STM32F103RCT6 with the channel AD.
As shown in fig. 6, the peripheral interface of RS232 communicating circuit includes: the end 5V and the end GND;The RS232 communicating circuit packet
It includes: communication chip MAX232AESE, ground capacity C44, capacitor C45, capacitor C47, capacitor C46, ground capacity C48 and RS232
Interface P10;1 pin of the communication chip MAX232AESE is connected by 3 pins of capacitor C45 and communication chip MAX232AESE
It connects, 4 pins of the communication chip MAX232AESE are connect by capacitor C47 with 5 pins of communication chip MAX232AESE, institute
2 pins for stating communication chip MAX232AESE are connect with one end of capacitor C46,16 pins of the communication chip MAX232AESE
It is connect respectively with 1 pin of the other end of capacitor C46, ground capacity C44 and RS232 interface, and as RS232 communicating circuit
The end 5V;7 pins of the communication chip MAX232AESE and 3 pins of RS232 interface connect, the communication chip
8 pins of MAX232AESE and 4 pins of RS232 interface connect, 6 pins and ground connection electricity of the communication chip MAX232AESE
Hold C48 connection, 2 pins of the RS232 interface respectively with the ground terminal of ground capacity C48, ground capacity C44 ground terminal and
15 pins of communication chip MAX232AESE connect, and the end GND as RS232 communicating circuit;The RS232 communicating circuit
The end 5V is connect with the 5V interface of signal simulation interface P2, and the end GND of the RS232 communicating circuit is with signal simulation interface P2's
The connection of GND interface, 10 pins of the communication chip MAX232AESE and the PB11 pin of main control chip STM32F103RCT6 connect
It connects, 9 pins of the communication chip MAX232AESE are connect with the PB10 pin of main control chip STM32F103RCT6.
As shown in fig. 7, the peripheral interface of RS485 communicating circuit includes: the end 5V and the end GND;The RS485 communicating circuit packet
It includes: communication chip SP3485 and ground capacity C11;The VCC pin of the communication chip SP3485 is connect with ground capacity C11,
And the end 5V as RS485 communicating circuit;The GND pin of the RS485 communicating circuit and the ground terminal of ground capacity C11 connect
It connects, and the end GND as RS485 communicating circuit;The RO pin and main control chip of the communication chip SP3485
The PC11 pin of STM32F103RCT6 connects, and the RE pin of the communication chip SP3485 is respectively with communication chip SP3485's
DE pin is connected with the PA15 pin of main control chip STM32F103RCT6, the DI pin of the communication chip SP3485 and master control
The PC10 pin of chip STM32F103RCT6 connects, and the B pin of the communication chip SP3485 is with signal simulation interface P2's
The connection of 485B interface, the A pin of the communication chip SP3485 are connect with the 485A interface of signal simulation interface P2, i.e., signal is imitative
True interface draws the RS485 interface of RS485 communicating circuit, the end 5V of the RS485 communicating circuit and signal simulation interface P2
5V interface connection, the end GND of the RS485 communicating circuit is connect with the GND interface of signal simulation interface P2.
This emulator is communicated by RS232 communicating circuit or RS485 communicating circuit with host computer, is driven according to KNX hard
Part number of devices, moreover it is possible to the cascade of this emulator is realized by RS232 interface or RS485 interface, the signal simulation that is multiplied connects
Mouthful.
As shown in figure 8, KNX signal and the mutual shifting circuit of usb signal include KNX bus circuit, binary channels isolation circuit and KNX
Download circuit, the KNX bus chip of the KNX bus circuit are NCN5130, and the binary channels of the binary channels isolation circuit is isolated
Chip is ADUM1201, the MCU of the KNX download circuit be STM32F103T8U6, the KNX bus circuit and binary channels every
From circuit connection, the binary channels isolation circuit is connect with KNX download circuit.
The external interface of KNX bus circuit includes the end 3_3 and the end GND;The end 3_3 of the KNX bus circuit and binary channels
Isolation circuit connection, the end GND of the KNX bus circuit are connect with the end GND of 3.3V voltage regulator circuit, and KNX bus circuit includes:
KNX interface, diode D2, diode D1, resistance R72, resistance R81, resistance R82, capacitor C17, ground capacity C21, ground connection electricity
Hold C22, ground capacity C23, capacitor C19, inductance L1, resistance R73, ground capacity C24, ground capacity C14, ground capacity C16,
Ground capacity C18, ground capacity C20 and crystal oscillator Y4;2 feet of KNX interface are positive and diode D2 with diode D1 respectively
Anode connection, the cathode of the diode D1 respectively with one end of capacitor C17, the VBUS1 pin of chip NCN5130, resistance R72
One end, resistance R81 one end connected with one end of resistance R82, the CCP of the other end of the capacitor C17 and chip NCN5130
Pin connection;The other end of the resistance R72 other end and chip with the other end of resistance R81, resistance R82 respectively
The TXO pin of NCN5130 connects;The CAV pin of the chip NCN5130 is connect with ground capacity C21, the chip
The VFILT pin of NCN5130 is connect with ground capacity C22 and with the VIN pin of chip NCN5130 respectively, the chip
The V20V pin of NCN5130 is connect with ground capacity C23, and the CEQ1 pin of the chip NCN5130 passes through capacitor C19 and chip
The CEQ2 pin of NCN5130 connects;The VSW1 pin of the chip NCN5130 is connect with one end of inductance L1, the inductance L1
The other end connect respectively with one end of the VDD1M pin of chip NCN5130 and resistance R73;The other end of the resistance R73 point
It is not connect with the VDD1 pin of ground capacity C24 and chip NCN5130, VDDA pin and VDDD pin, and as KNX bus
The end 3_3 of circuit;The XTAL2 pin of the chip NCN5130 is connect with one end of crystal oscillator Y4 and ground capacity C18 respectively, institute
The XTAL1 pin for stating chip NCN5130 is connect with the other end of crystal oscillator Y4 and ground capacity C20 respectively, the chip NCN5130
VDDA pin connect with ground capacity C14, the VDDD pin of the chip NCN5130 is connect with ground capacity C16, the core
The VSSA pin of piece NCN5130 respectively with 1 foot of KNX interface, the cathode of diode D2, ground capacity C21 ground terminal, ground connection
The ground terminal of capacitor C22, the ground terminal of ground capacity C23, the ground terminal of ground capacity C24, ground capacity C14 ground terminal,
The ground terminal of ground capacity C16, the ground terminal of ground capacity C18, the ground terminal of ground capacity C20 and chip NCN5130
VBUS2 pin, VSS1 pin, VSS2 pin, VSSD pin, XSEL pin, SCK/UC2 pin, CSB/UC1 pin, TREQ draw
Foot, MODE2 pin and the connection of MODE1 pin, and the end GND as KNX bus circuit;The SDO/ of the chip NCN5130
TXD pin is connect with the VOA pin of binary channels isolating chip ADUM1201, the SDI/RXD pin of the chip NCN5130 and double
The VIB pin of channel separation chip ADUM1201 connects.
The external interface of KNX download circuit includes: the end 3V3, the end 5V and the end GND;The end 3V3 of the KNX download circuit with
The end 3V3 of 3.3V voltage regulator circuit connects, and the end 5V of the KNX download circuit is connect with the 5V interface of signal simulation interface P2, institute
The end GND for stating KNX download circuit is connect with the end GND of 3.3V voltage regulator circuit;The KNX download circuit includes: ground resistance
R84, resistance R83, key S1, ground capacity C31, resistance R3, resistance R4, resistance R88, triode Q1, resistance R89, double USB connect
Mouth, download interface P5, crystal oscillator Y3, ground capacity C13, ground capacity C15, ground capacity C25, ground capacity C26, ground capacity
C27, ground capacity C28, resistance R74, ground resistance R75, pattern switching interface P8, resistance R85, ground capacity C49, resistance
R86, resistance R87, diode (LED) 1 and diode (LED) 2;The PA1 pin of the chip STM32F103T8U6 is with resistance R83's
One end connection, the other end of the resistance R83 are connect with one end of ground resistance R84 and key S1 respectively, the key S1's
The VDD_1 pin of the other end and chip STM32F103T8U6, VDD_2 pin, VDD_3 pin and VDDA pin, ground capacity
C31, the emitter of triode Q1, ground capacity C25, ground capacity C26, ground capacity C27, ground capacity C28, resistance R74
One end, one end of resistance R85 connected with 2 pins of download interface P5, and the end 3V3 as KNX download circuit;The chip
The PA11 pin of STM32F103T8U6 is connect with one end of resistance R3, the other end of the resistance R3 respectively with double-USB interface
6 pins and the connection of 2 pins, the PA12 pin of the chip STM32F103T8U6 respectively with one end of resistance R4 and resistance R88
One end connection, the other end of the resistance R4 are connect with 3 pins of double-USB interface and 7 pins respectively, and the resistance R88's is another
One end is connect with the collector of triode Q1, and the base stage of the triode Q1 is connect with one end of resistance R89, the resistance R89
The other end connect with the PB7 pin of chip STM32F103T8U6, the OSC_IN/PD0 of the chip STM32F103T8U6 draws
Foot is connect with one end of crystal oscillator Y3 and ground capacity C13 respectively, the OSC_OUT/PD1 difference of the chip STM32F103T8U6
It is connect with the other end of crystal oscillator Y3 and ground capacity C15, the BOOT0 pin and pattern switching of the chip STM32F103T8U6
2 pins of interface P8 connect, and 3 pins of the pattern switching interface P8 are connect with the other end of resistance R74, the pattern switching
1 pin of interface P8 is connect with ground resistance R75, and the NRST pin of the chip STM32F103T8U6 is respectively with resistance R85's
The other end is connected with ground capacity C49, and the PB5 pin of the chip STM32F103T8U6 is connect with one end of resistance R86, institute
The PB6 pin for stating chip STM32F103T8U6 is connect with one end of resistance R87, the other end and diode of the resistance R86
The anode connection of LED1, the other end of the resistance R87 are connect with the anode of diode (LED) 2, and the 3 of the download interface P5 are drawn
Foot is connect with the PA13/JTMS/SWDIO pin of chip STM32F103T8U6,4 pins and chip of the download interface P5
The PA14/JTCK/SWCLK pin of STM32F103T8U6 connects, the VSS_1 pin of the chip STM32F103T8U6 respectively with
VSS_2 pin, VSS_3 pin and the VSSA pin of chip STM32F103T8U6, the ground terminal of ground resistance R84, ground connection electricity
Hold the ground terminal of C31,4 pins of double-USB interface, 8 pins of double-USB interface, the ground terminal of ground capacity C13, ground capacity
The ground terminal of C15, the ground terminal of ground capacity C18, ground capacity C20 ground terminal, the ground terminal of ground capacity C25, ground connection electricity
Hold the ground terminal of C26, the ground terminal of ground capacity C27, the ground terminal of ground capacity C28, ground resistance R75 ground terminal, connect
The ground terminal of ground capacitor C49, the cathode of diode (LED) 1, diode (LED) 2 cathode connected with 1 pin of download interface P5, and
The end GND as KNX download circuit;The PA2 pin and binary channels isolating chip ADUM1201 of the chip STM32F103T8U6
The connection of VIA pin, the VOB pin of the PA3 pin of the chip STM32F103T8U6 and binary channels isolating chip ADUM1201
Connection.
KNX bus circuit includes KNX interface, and KNX interface accesses KNX bus, realizes the grid-connected of this emulator and KNX bus
Communication.KNX bus signals are divided into two-way after KNX interface, and 1 tunnel is used to provide operating voltage for KNX bus circuit;KNX bus
Chip NCN5130 has the voltage pressure stabilizing for providing KNX bus signals to 3.3V, and another way is through resistance R72, resistance R81 and electricity
The TXO pin for hindering R82 input chip NCN5130 improves circuit in such a way that resistance R72, resistance R81 and resistance R82 are in parallel
Load power, KNX bus circuit receives and processes KNX bus signals, and the KNX bus signals after conversion are passed through UART serial ports
Be sent to the VOA pin and VIB pin of binary channels isolating chip ADUM1201, binary channels isolation circuit by KNX bus circuit and
The carry out isolated from power of KNX download circuit, the VIA pin of binary channels isolating chip ADUM1201 and the output signal of VOB pin
Identical as the input signal of VOA pin and VIB pin, the MCU of KNX download circuit is STM32F103T8U6,
STM32F103T8U6 receives and processes the output signal of binary channels isolation circuit, and the signal is defeated by the double-deck USB interface
Out.Due on USB interface, UART serial ports and KNX interface signal transmission be all it is two-way, it can be achieved that KNX signal with
Usb signal mutually turns;USB interface is connected with host computer, realizes that host computer is the program or group of each equipment in KNX bus
State downloading updates, and host computer can also carry out address administration, parameter setting sum number to the equipment in KNX bus by this emulator
According to monitoring, as shown in Figure 9.
As shown in Figure 10, the peripheral interface of expansion of power supply circuit includes: the end 24V, the end 12V and the end GND;The expansion of power supply
The end 24V of circuit is connect with the 24V interface of signal simulation interface P1, and the end GND of the expansion of power supply circuit connects with signal simulation
The GND interface connection of mouth P1, the end 12V of the expansion of power supply circuit is connect with the 12V interface of signal simulation interface P1;The expansion
Opening up power circuit includes: power supply chip MP1591, resistance R76, ground resistance R78, resistance R77, resistance R79, ground resistance
R80, ground capacity C40, diode D3, capacitor C36, inductance LI1, ground capacity C39, ground capacity C37, ground capacity C38,
Ground capacity C43 and ground capacity C42;The IN pin of the power supply chip MP1591 respectively with ground capacity C42, resistance R76
One end connected with ground capacity C40, and the end 24V as expansion of power supply circuit;The other end of the resistance R76 respectively with connect
Ground resistance R78 is connected with the EN pin of power supply chip MP1591, the cathode of the diode D3 respectively with one end of capacitor C36,
One end of inductance LI1 is connected with the SW pin of power supply chip MP1591, the other end and power supply chip MP1591 of the capacitor C36
BST pin connection, the other end of the inductance LI1 respectively with ground capacity C39, ground capacity C37, ground capacity C38 and
One end of resistance R79 connects, and the end 12V as expansion of power supply circuit;One end of the resistance R77 and power supply chip MP1591
The connection of COMP pin, the other end of the resistance R77 connect with ground capacity C43, the ground resistance R80 respectively with resistance
The other end of R79 is connected with the FB pin of power supply chip MP1591, and the end GND of the power supply chip MP1591 is electric with ground connection respectively
Hold anode, the ground resistance of the ground terminal of C42, the ground terminal of ground resistance R78, the ground terminal of ground capacity C40, diode D3
The ground terminal of R80, the ground terminal of ground capacity C43, the ground terminal of ground capacity C39, the ground terminal of ground capacity C37 and ground connection
The ground terminal of capacitor C38 connects, and the end GND as expansion of power supply circuit, and expansion of power supply circuit is by external 24V voltage step-down
Power supply at 12V, for external equipment in teaching process.
The invention has the benefit that student's KNX control terminal to be operated (KNX HMI controls equipment) and KNX drive end
(KNX drives hardware device) is real equipment, by the untouchable building body of some teaching, construction site and building body or construction
Gao Chengben, large volume, the KNX execution equipment of high energy consumption in scene, such as: KNX air-conditioning, KNX lamp, KNX curtain and KNX are for HVAC
Road etc. all realizes that these KNX execute the emphasis that equipment is not student's study using Unity3D virtual technology, will not reduce teaching
Quality, and upgrade conveniently, can need to change virtual scene according to social development or teaching and increase new teaching cases, it can
Efficiently to complete the teaching task of cognition, KNX programming and KNX configuration of the student to KNX equipment, KNX teaching equipment is substantially reduced
Cost and energy consumption, improve students'learning in safety, enrich practice teaching case, make the learning process of KNX technology
With practice process more close to more really.
Claims (10)
1. a kind of KNX emulator, which is characterized in that including MCU governor circuit, RS232 communicating circuit, RS485 communicating circuit,
KNX signal divides current-limiting circuit, signal simulation interface, KNX signal and the mutual shifting circuit of usb signal, 3.3V voltage regulator circuit and extension
Power circuit;
The signal simulation interface is electric with RS232 communicating circuit, RS485 communicating circuit, 3.3V voltage regulator circuit, expansion of power supply respectively
Road and KNX signal are connect with the mutual shifting circuit of usb signal;
The 3.3V voltage regulator circuit is connect with MCU governor circuit and KNX signal with the mutual shifting circuit of usb signal respectively;
The signal simulation interface is connect with KNX signal partial pressure current-limiting circuit;
The MCU governor circuit respectively with KNX signal partial pressure current-limiting circuit, signal simulation interface, RS485 communicating circuit and
The connection of RS232 communicating circuit.
2. KNX emulator according to claim 1, which is characterized in that the signal simulation interface includes that signal simulation connects
Mouth P1 and signal simulation interface P2, the signal simulation interface P1 are electric with expansion of power supply circuit and KNX signal partial pressure current limliting respectively
Road connection, the signal simulation interface P2 respectively with RS232 communicating circuit, MCU governor circuit, KNX signal partial pressure current-limiting circuit,
RS485 communicating circuit, 3.3V voltage regulator circuit and KNX signal are connect with the mutual shifting circuit of usb signal.
3. KNX emulator according to claim 2, which is characterized in that the peripheral interface of the 3.3V voltage regulator circuit includes:
The end 5V, the end 3V3 and the end GND;The end 5V of the 3.3V voltage regulator circuit is connect with the 5V interface of signal simulation interface P2;The 3.3V
The end GND of voltage regulator circuit is connect with the GND interface of signal simulation interface P2;The 3.3V voltage regulator circuit includes: ground capacity
C32, ground capacity C33, ground capacity C34, ground capacity C35 and voltage stabilizing chip LM1117T-3.3;The voltage stabilizing chip
The end Vin of LM1117T-3.3 is connect with ground capacity C34 and ground capacity C32 respectively, and the 5V as 3.3V voltage regulator circuit
End;The end Vout of the voltage stabilizing chip LM1117T-3.3 is connect with ground capacity C33 and ground capacity C35 respectively, and conduct
The end 3V3 of 3.3V voltage regulator circuit;The end GND of the voltage stabilizing chip LM1117T-3.3 respectively with the ground terminal of ground capacity C32,
The ground terminal of ground capacity C33, the ground terminal of ground capacity C34 are connected with the ground terminal of ground capacity C35, and steady as 3.3V
The end GND of volt circuit.
4. KNX emulator according to claim 3, which is characterized in that the peripheral interface of the MCU governor circuit includes:
The end 3V3 and the end GND;The MCU governor circuit includes: main control chip STM32F103RCT6, download interface P3, resistance R1, ground connection
Resistance R2, pattern switching interface P6, ground capacity C1, ground capacity C2, ground capacity C3, ground capacity C4, ground capacity C5,
Ground capacity C6, ground capacity C7, ground capacity C8, ground capacity C9, ground capacity C10, ground capacity C12, crystal oscillator Y2, crystalline substance
Shake Y1 and key SW-PB;The NRST interface of the download interface P3 respectively with one end of key SW-PB, ground capacity C12 and master
Control the NRST pin connection of chip STM32F103RCT6;The SWCLK1 interface and main control chip of the download interface P3
The PA14 pin of STM32F103RCT6 connects, the SWDIO1 interface and main control chip STM32F103RCT6 of the download interface P3
PA13 pin connection;One end of the crystal oscillator Y2 respectively with the PD1 pin and ground capacity of main control chip STM32F103RCT6
C9 connection, the other end of the crystal oscillator Y2 are electric with the PD0-OSC_IN pin of main control chip STM32F103RCT6 and ground connection respectively
Hold C10 connection;One end of crystal oscillator Y1 PC15- with ground capacity C1 and main control chip STM32F103RCT6 respectively
The connection of OSC32_OUT pin, the other end of the crystal oscillator Y1 is respectively with ground capacity C8's and main control chip STM32F103RCT6
The connection of PC14-OSC32_IN pin;One end of the resistance R1 is connect with 3 pins of pattern switching interface P6, the ground connection electricity
Resistance R2 is connect with 1 pin of pattern switching interface P6;The VBAT pin of the main control chip STM32F103RCT6 respectively with master control
VDD_1 pin, VDD_2 pin, VDD_3 pin, VDD_4 pin and VDDA pin, the ground connection electricity of chip STM32F103RCT6
Hold C2, ground capacity C3, ground capacity C4, ground capacity C5, ground capacity C6, ground capacity C7, resistance R1 the other end and
The 3V3 interface of download interface P3 connects, and the end 3V3 as MCU governor circuit;The main control chip STM32F103RCT6's
VSS_1 pin draws with the VSS_2 pin of main control chip STM32F103RCT6, VSS_3 pin, VSS_4 pin and VSSA respectively
The ground connection of foot, the ground terminal of ground capacity C2, the ground terminal of ground capacity C3, the ground terminal of ground capacity C4, ground capacity C5
It holds, the ground connection of the ground terminal of ground capacity C6, the ground terminal of ground capacity C7, the ground terminal of ground resistance R2, ground capacity C9
End, the ground terminal of ground capacity C10, the ground terminal of ground capacity C1, the ground terminal of ground capacity C8, ground capacity C12 connect
Ground terminal is connected with the other end of key SW-PB, and the end GND as MCU governor circuit;The end 3V3 of the MCU governor circuit with
The end 3V3 of 3.3V voltage regulator circuit connects, and the end GND of the MCU governor circuit is connect with the end GND of 3.3V voltage regulator circuit.
5. KNX emulator according to claim 4, which is characterized in that the peripheral interface packet of the RS232 communicating circuit
It includes: the end 5V and the end GND;The RS232 communicating circuit include: communication chip MAX232AESE, ground capacity C44, capacitor C45,
Capacitor C47, capacitor C46, ground capacity C48 and RS232 interface P10;1 pin of the communication chip MAX232AESE passes through electricity
Hold C45 to connect with 3 pins of communication chip MAX232AESE, 4 pins of the communication chip MAX232AESE pass through capacitor C47
It is connect with 5 pins of communication chip MAX232AESE, 2 pins of the communication chip MAX232AESE and one end of capacitor C46
Connection, 16 pins of the communication chip MAX232AESE connect with the other end of capacitor C46, ground capacity C44 and RS232 respectively
The 1 pin connection of mouth, and the end 5V as RS232 communicating circuit;7 pins and RS232 of the communication chip MAX232AESE
3 pins of interface connect, and 8 pins of the communication chip MAX232AESE and 4 pins of RS232 interface connect, the communication
6 pins of chip MAX232AESE are connect with ground capacity C48,2 pins of the RS232 interface respectively with ground capacity C48
Ground terminal, the ground terminal of ground capacity C44 connected with 15 pins of communication chip MAX232AESE, and as RS232 communicate
The end GND of circuit;The end 5V of the RS232 communicating circuit is connect with the 5V interface of signal simulation interface P2, the RS232 communication
The end GND of circuit is connect with the GND interface of signal simulation interface P2,10 pins of the communication chip MAX232AESE and master control
The PB11 pin of chip STM32F103RCT6 connects, 9 pins and main control chip of the communication chip MAX232AESE
The PB10 pin of STM32F103RCT6 connects.
6. KNX emulator according to claim 4, which is characterized in that the peripheral interface packet of the RS485 communicating circuit
It includes: the end 5V and the end GND;The RS485 communicating circuit includes: communication chip SP3485 and ground capacity C11;The communication chip
The VCC pin of SP3485 is connect with ground capacity C11, and the end 5V as RS485 communicating circuit;The RS485 communicating circuit
GND pin connect with the ground terminal of ground capacity C11, and the end GND as RS485 communicating circuit;The communication chip
The RO pin of SP3485 is connect with the PC11 pin of main control chip STM32F103RCT6, and the RE of the communication chip SP3485 draws
Foot is connect with the PA15 pin of the DE pin of communication chip SP3485 and main control chip STM32F103RCT6 respectively, the communication
The DI pin of chip SP3485 is connect with the PC10 pin of main control chip STM32F103RCT6, the B of the communication chip SP3485
Pin is connect with the 485B interface of signal simulation interface P2, the A pin and signal simulation interface P2 of the communication chip SP3485
The connection of 485A interface, the end 5V of the RS485 communicating circuit connect with the 5V interface of signal simulation interface P2, the RS485
The end GND of communicating circuit is connect with the GND interface of signal simulation interface P2.
7. KNX emulator according to claim 4, which is characterized in that the KNX signal and the mutual shifting circuit packet of usb signal
Include KNX bus circuit, binary channels isolation circuit and KNX download circuit;The KNX bus chip of the KNX bus circuit is
The binary channels isolating chip of NCN5130, the binary channels isolation circuit are ADUM1201, and the MCU of the KNX download circuit is
STM32F103T8U6, the KNX bus circuit are connect with binary channels isolation circuit, and the binary channels isolation circuit and KNX are downloaded
Circuit connection.
8. KNX emulator according to claim 7, which is characterized in that the external interface of the KNX bus circuit includes 3_
3 ends and the end GND;The end 3_3 of the KNX bus circuit is connect with binary channels isolation circuit, the end GND of the KNX bus circuit
Connect with the end GND of 3.3V voltage regulator circuit, KNX bus circuit include: KNX interface, diode D2, diode D1, resistance R72,
Resistance R81, resistance R82, capacitor C17, ground capacity C21, ground capacity C22, ground capacity C23, capacitor C19, inductance L1, electricity
Hinder R73, ground capacity C24, ground capacity C14, ground capacity C16, ground capacity C18, ground capacity C20 and crystal oscillator Y4;KNX
2 feet of interface are connect with the anode of diode D1 and the positive of diode D2 respectively, the cathode of the diode D1 respectively with electricity
Hold one end of one end of C17, the VBUS1 pin of chip NCN5130, one end of resistance R72, one end of resistance R81 and resistance R82
Connection, the other end of the capacitor C17 are connect with the CCP pin of chip NCN5130;The other end of the resistance R72 respectively with
The other end, the other end of resistance R82 of resistance R81 is connected with the TXO pin of chip NCN5130;The chip NCN5130's
CAV pin is connect with ground capacity C21, the VFILT pin of the chip NCN5130 respectively with ground capacity C22 and and chip
The VIN pin of NCN5130 connects, and the V20V pin of the chip NCN5130 is connect with ground capacity C23, the chip
The CEQ1 pin of NCN5130 is connect by capacitor C19 with the CEQ2 pin of chip NCN5130;The VSW1 of the chip NCN5130
Pin is connect with one end of inductance L1, the other end of the inductance L1 respectively with the VDD1M pin and resistance of chip NCN5130
One end of R73 connects;The other end of the resistance R73 respectively with the VDD1 pin of ground capacity C24 and chip NCN5130,
VDDA pin and the connection of VDDD pin, and the end 3_3 as KNX bus circuit;The XTAL2 pin of the chip NCN5130
It is connect respectively with one end of crystal oscillator Y4 and ground capacity C18, the XTAL1 pin of the chip NCN5130 is respectively with crystal oscillator Y4's
The other end is connected with ground capacity C20, and the VDDA pin of the chip NCN5130 is connect with ground capacity C14, the chip
The VDDD pin of NCN5130 is connect with ground capacity C16, the VSSA pin of the chip NCN5130 respectively with KNX interface 1
The ground connection of foot, the cathode of diode D2, the ground terminal of ground capacity C21, the ground terminal of ground capacity C22, ground capacity C23
End, the ground terminal of ground capacity C24, the ground terminal of ground capacity C14, the ground terminal of ground capacity C16, ground capacity C18
VBUS2 pin, VSS1 pin, VSS2 pin, the VSSD of ground terminal, the ground terminal of ground capacity C20 and chip NCN5130 draw
Foot, XSEL pin, SCK/UC2 pin, CSB/UC1 pin, TREQ pin, MODE2 pin and the connection of MODE1 pin, and make
For the end GND of KNX bus circuit;The SDO/TXD pin of the chip NCN5130 is with binary channels isolating chip ADUM1201's
The connection of VOA pin, the SDI/RXD pin of the chip NCN5130 and the VIB pin of binary channels isolating chip ADUM1201 connect
It connects.
9. KNX emulator according to claim 8, which is characterized in that the external interface of the KNX download circuit includes:
The end 3V3, the end 5V and the end GND;The end 3V3 of the KNX download circuit is connect with the end 3V3 of 3.3V voltage regulator circuit, the KNX downloading
The end 5V of circuit is connect with the 5V interface of signal simulation interface P2, the end GND and the 3.3V voltage regulator circuit of the KNX download circuit
The connection of the end GND;The KNX download circuit include: ground resistance R84, resistance R83, key S1, ground capacity C31, resistance R3,
Resistance R4, resistance R88, triode Q1, resistance R89, double-USB interface, download interface P5, crystal oscillator Y3, ground capacity C13, ground connection
Capacitor C15, ground capacity C25, ground capacity C26, ground capacity C27, ground capacity C28, resistance R74, ground resistance R75,
Pattern switching interface P8, resistance R85, ground capacity C49, resistance R86, resistance R87, diode (LED) 1 and diode (LED) 2;Institute
The PA1 pin for stating chip STM32F103T8U6 is connect with one end of resistance R83, the other end of the resistance R83 respectively with ground connection
Resistance R84 is connected with one end of key S1, the VDD_1 pin of the other end of the key S1 and chip STM32F103T8U6,
VDD_2 pin, VDD_3 pin and VDDA pin, ground capacity C31, the emitter of triode Q1, ground capacity C25, ground connection
Capacitor C26, ground capacity C27, ground capacity C28, one end of resistance R74, one end of resistance R85 and download interface P5 2 draw
Foot connection, and the end 3V3 as KNX download circuit;The PA11 pin of the chip STM32F103T8U6 and one end of resistance R3
Connection, the other end of the resistance R3 are connect with 6 pins of double-USB interface and 2 pins respectively, the chip
The PA12 pin of STM32F103T8U6 is connect with one end of one end of resistance R4 and resistance R88 respectively, and the resistance R4's is another
End is connect with 3 pins of double-USB interface and 7 pins respectively, and the other end of the resistance R88 and the collector of triode Q1 connect
It connects, the base stage of the triode Q1 is connect with one end of resistance R89, the other end and chip of the resistance R89
The PB7 pin of STM32F103T8U6 connects, the OSC_IN/PD0 pin of the chip STM32F103T8U6 respectively with crystal oscillator Y3
One end connected with ground capacity C13, the OSC_OUT/PD1 of the chip STM32F103T8U6 is another with crystal oscillator Y3 respectively
End is connected with ground capacity C15, and the BOOT0 pin of the chip STM32F103T8U6 and 2 pins of pattern switching interface P8 connect
Connect, 3 pins of the pattern switching interface P8 are connect with the other end of resistance R74,1 pin of the pattern switching interface P8 with
Ground resistance R75 connection, the NRST pin of the chip STM32F103T8U6 are electric with the other end of resistance R85 and ground connection respectively
Hold C49 connection, the PB5 pin of the chip STM32F103T8U6 is connect with one end of resistance R86, the chip
The PB6 pin of STM32F103T8U6 is connect with one end of resistance R87, and the other end and diode (LED) 1 of the resistance R86 is just
Pole connection, the other end of the resistance R87 are connect with the anode of diode (LED) 2,3 pins and chip of the download interface P5
The PA13/JTMS/SWDIO pin of STM32F103T8U6 connects, 4 pins and chip of the download interface P5
The PA14/JTCK/SWCLK pin of STM32F103T8U6 connects, the VSS_1 pin of the chip STM32F103T8U6 respectively with
VSS_2 pin, VSS_3 pin and the VSSA pin of chip STM32F103T8U6, the ground terminal of ground resistance R84, ground connection electricity
Hold the ground terminal of C31,4 pins of double-USB interface, 8 pins of double-USB interface, the ground terminal of ground capacity C13, ground capacity
The ground terminal of C15, the ground terminal of ground capacity C18, ground capacity C20 ground terminal, the ground terminal of ground capacity C25, ground connection electricity
Hold the ground terminal of C26, the ground terminal of ground capacity C27, the ground terminal of ground capacity C28, ground resistance R75 ground terminal, connect
The ground terminal of ground capacitor C49, the cathode of diode (LED) 1, diode (LED) 2 cathode connected with 1 pin of download interface P5, and
The end GND as KNX download circuit;The PA2 pin and binary channels isolating chip ADUM1201 of the chip STM32F103T8U6
The connection of VIA pin, the VOB pin of the PA3 pin of the chip STM32F103T8U6 and binary channels isolating chip ADUM1201
Connection.
10. KNX emulator according to claim 2, which is characterized in that the peripheral interface packet of the expansion of power supply circuit
It includes: the end 24V, the end 12V and the end GND;The end 24V of the expansion of power supply circuit is connect with the 24V interface of signal simulation interface P1, institute
The end GND for stating expansion of power supply circuit is connect with the GND interface of signal simulation interface P1, the end 12V of the expansion of power supply circuit with
The 12V interface of signal simulation interface P1 connects;The expansion of power supply circuit includes: power supply chip MP1591, resistance R76, ground connection
Resistance R78, resistance R77, resistance R79, ground resistance R80, ground capacity C40, diode D3, capacitor C36, inductance LI1, ground connection
Capacitor C39, ground capacity C37, ground capacity C38, ground capacity C43 and ground capacity C42;The power supply chip MP1591's
IN pin is connect with ground capacity C42, one end of resistance R76 and ground capacity C40 respectively, and as expansion of power supply circuit
The end 24V;The other end of the resistance R76 is connect with the EN pin of ground resistance R78 and power supply chip MP1591 respectively, and described two
The cathode of pole pipe D3 is connect with the SW pin of one end of capacitor C36, one end of inductance LI1 and power supply chip MP1591 respectively, institute
The other end for stating capacitor C36 is connect with the BST pin of power supply chip MP1591, the other end of the inductance LI1 respectively with ground connection
Capacitor C39, ground capacity C37, ground capacity C38 are connected with one end of resistance R79, and the end 12V as expansion of power supply circuit;
One end of the resistance R77 is connect with the COMP pin of power supply chip MP1591, the other end and ground capacity of the resistance R77
C43 connection, the ground resistance R80 is connect with the FB pin of the other end of resistance R79 and power supply chip MP1591 respectively, described
The end GND of power supply chip MP1591 respectively with the ground terminal of ground capacity C42, the ground terminal of ground resistance R78, ground capacity
The ground terminal of C40, the anode of diode D3, the ground terminal of ground resistance R80, the ground terminal of ground capacity C43, ground capacity
The ground terminal of C39, the ground terminal of ground capacity C37 are connected with the ground terminal of ground capacity C38, and as expansion of power supply circuit
The end GND.
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