The content of the invention
The present invention provides a kind of intelligent auxiliary monitoring based on ARM platforms to overcome the deficiencies in the prior art
And control process device.
The present invention solves its technical problem and is adopted the following technical scheme that:
The intelligent auxiliary monitoring of the present invention and control process device, including:Master control and auxiliary processing module, ethernet PHY
Control module, JTAG download onlines module, serial ports isolation module, address dial-up module, master control power module, it is characterised in that:
The master control and auxiliary processing module include main control chip circuit and the 25MHz being connected with the main control chip circuit electrical
The crystal oscillating circuit of system clock crystal oscillating circuit, 32.768KHz system's real-time clocks, reset circuit, WTD circuits and power supply electricity
Road;The power supply circuit is made of master control power module and TCL1117-3.3V power supplys, the output of master control power module with
The input of TCL1117-3.3V power supplys composition is connected, the output of TCL1117-3.3V power supplys and the power input of main control chip circuit
Terminal is connected, and the master control power module is MP1484 chips, and the input termination 12V input services of the MP1484 chips are electric
Source, Enable Pin connect pull-up resistor, adjust output voltage by precision resistance, and pass through prime electric source filter circuit and rear level power supply
Filter circuit is filtered;The ethernet PHY control module is electrically connected with master control and auxiliary processing module, the ether
PHY control modules are netted by single channel 10/100Mb/s Ethernet transceiver interface chip DP83848, are connected with the DP83848 chips
Network transformer H1102, another TCL1117-3.3V power supplys, 50MHz crystal oscillators and with another TCL1117-3.3V electricity
The RJ45 network interfaces composition of source connection, the DP83848 chips introduce power supply signal using ETH_PWR_INT_PA3 pins,
MII_RESET_N0 pins introduce systematic reset signal, ETH0_CLK_X1 pins introduce crystal oscillation signal, by ETHI_TXD,
ETH_RXD pins are respectively completed sending and receiving for data, and by ETH_TX_EN, ETH0_RXDV pins are respectively completed transmission number
According to control and receive the control of data, the ethernet PHY control module walks line traffic control using 50 ohm so that connects
It in the case of receiving end high resistant, is matched by connecting 50 ohm in source, absorbs the signal that end reflection is returned, prevent in source
End emits again;The JTAG download onlines module is electrically connected with the master control and auxiliary processing module, the JTAG
Download online module test program data-out pin, test program data output pins, reset pin and test program pattern
Controlling switch connects the pull-up resistor of 10k, the pull down resistor of test program clock driving pin connection 10k, external physical respectively
Interface uses JM2 positions, and terminal uses 1.25mm spacing 8pin straight cutting terminals;The serial ports isolation module and the master control and auxiliary
Processing module is helped to be electrically connected, the optically isolated chip of the serial ports isolation mode high-speed data-flow in the block carries out Transistor-Transistor Logic level signal
The serial ports Transistor-Transistor Logic level of the main control chip circuit is converted to RS485 letters by Phototube Coupling by electrical level transferring chip SP485EEN
Number, overvoltage limitation is carried out using TVS pipe, the energy that pipe completion high input voltage is put using sky is released, and is insured using self- recoverage
Pipe completes auto-cutout during overcurrent;Described address dial-up module is electrically connected with the master control and auxiliary processing module, is used
In sending address code to the master control and auxiliary processing module.
The main control chip is the STM32F4XX series main control chips of ARM Cortex-M4.
The power supply of the TCL1117-3.3V power supplys terminates decoupling capacitance to eliminate the parasitic couplings between circuit network.
The JTAG download onlines module realizes program download and on-line debugging function.
Described address dial-up module realizes 256 kinds of device addresses, with area by 8 GPIO of main control chip by pull-up resistor
Divide with distinct device in bus.
Existed using the intelligent auxiliary monitoring and the intelligent auxiliary monitoring and control method of control process device, feature
In:Corresponding device model is established in intelligent supplementary controlled system and is opened with matching the maintenance in the work ticket that five-preventing system transmits
Close or other equipment information so that video zone of protection is consistent with repair apparatus region, intelligent supplementary controlled system according to
The corresponding repair apparatus region of information automatic identification of work ticket, is deployed troops on garrison duty and is removed to video zone of protection according to control strategy
It is anti-.
Good effect is caused by the present invention:It effectively avoids occurring without work during substation equipment maintenance and inspection
The disposition of mistakenly entering charged chamber, can will examine invasion situation by video camera by the system when ticket or operation order are permitted
It surveys, analysis, determines it is progress correlation subsystem linkage after being strayed into, carry out live sound alarm, carrying out scene by video camera takes pictures
And it achieves;Correlation warning information is uploaded to main website or backstage, gives operator on duty to alert;Warning information is passed through simultaneously short
Letter reminds related leader, and the problem so that the habituation for preventing personnel in terms of technical safeguard is broken rules and regulations is carried out at the same time five anti-works
Make the linkage that video protects in the service work in ticket and intelligent supplementary controlled system, improve service work safety guarantee in station,
The rate of false alarm of warning information in station is reduced, is provided safeguard safely for working site, it is further provided the automation of electric system
O&M is horizontal.
Specific embodiment
Below by way of specific embodiment, and with reference to attached drawing, the invention will be further described.
Referring to Fig. 1, for the intelligent auxiliary monitoring of the present invention and the structural principle block diagram of control process device, the device bag
It includes:Master control and auxiliary processing module, ethernet PHY control module, JTAG download onlines module, serial ports isolation module, address group
Code module, master control power module, the master control and auxiliary processing module include main control chip circuit and with the main control chip
25MHz system clocks crystal oscillating circuit, the crystal oscillating circuit of 32.768KHz system's real-time clocks of circuit electrical connection, reset circuit,
WTD circuits and power supply circuit;The power supply circuit is made of master control power module and TCL1117-3.3V power supplys;The ether
It nets PHY control modules to be electrically connected with master control and auxiliary processing module, the ethernet PHY control module is by single channel 10/
100Mb/s Ethernet transceiver interface chip DP83848, the network transformer H1102 being connected with the DP83848 chips, it is another
TCL1117-3.3V power supplys, 50MHz crystal oscillators and the RJ45 network interface groups being connected with another TCL1117-3.3V power supplys
Into;The JTAG download onlines module and the master control and auxiliary processing module are electrically connected, by SDO, SDI ,/ISPEN,
PLUG, TMS, SCLK interface realize program download and on-line debugging function;The serial ports isolation module and the master control and auxiliary
Processing module is electrically connected, and Transistor-Transistor Logic level signal isolation is realized by optically isolated module, then by electrical level transferring chip that TTL is electric
Ordinary mail number is converted into RS485 signals, and then by TVS pipe, sky puts pipe, and self- recoverage protective tube completes anti-interference process circuit, real
Now stable RS485 communications;Described address dial-up module and the master control and auxiliary processing module are electrically connected, for described
Master control and auxiliary processing module send address code.
It is STM32F4XX series main control chip partial circuits referring to Fig. 2.As shown in the figure, the circuit be main control chip 1 to
44pin wiring diagrams, wherein, YH1 is 25MHz system clock crystal oscillators, and crystal oscillating circuit further includes capacitance CH37, capacitance CH38 and resistance
RH56;X4 is the crystal oscillator of 32.7680KHz system's real-time clocks, and crystal oscillating circuit includes capacitance CH39, capacitance CH40, resistance RH75;
Automatic electrification reset circuit includes resistance RH68, diode DH27, capacitance CH42, and in system electrification, capacitance CH42, which is in, to be filled
In electric process, 31 pin levels of STM32F are in low level, system reset, after capacitance CH42 charging completes, STM32F's
31 pin levels are just recovered and are kept to high level, and system reset is completed;System pull-up resistor RH69, RH72, RH73 go here and there respectively
It is connected between 3.3V power supplys and 38,39,40 pins, RH74 subsystem pull-down resistors, for keeping signal stabilization, UART_RD_TX1,
UART_RD_TX4 is respectively the Transistor-Transistor Logic level signal sending end of serial ports 1 and serial ports 4, ETH_MDC, ETH_RX_REF_CLK, ETH_
MDIO is network interface pin, and BORAD_ADD0_PH2, BORAD_ADD1_PH3 control I/O portion pin for device address,
CA71, CA62, CA67, CA72 are power supply decoupling capacitance, for ensureing that power input is reliable and stable.
Referring to Fig. 3, for the Ethernet transceiver interface chip circuit figure of ethernet PHY control module, chip model is
DP83848, the chip can realize the partial function of CS MA/CD, and whether have data transmitting, if there is then if detecting on network
It waits, if network idle, then see data off after waiting a random time.It is each to wait one if detecting conflict
The random time resends data, provides safeguard for the transmitting of data.Wherein, ETHI_TXD0, ETH_TXD1, ETH_
TX_EN is data sending terminal and control signal, and ETH_RXD0, ETH_RXD1, ETH0_RXDV are data receiver and control letter
Number, ETH_MDC, ETH_MDIO are data controlling signal, and MII_RESET_N0 systematic reset signals, ETH_PWR_INT_PA3 is
Power supply signal, ETH0_CLK_X1 are crystal oscillation signal, and ETH0_LTXP, ETH0_LTXM, ETH0_LRXP, ETH0_LRXM are network
Receive and dispatch two pairs of differential signals, ETH0_LINK for network connection success indicator light, ETH0_SPD data exchange speed lights.Figure
In some series resistors be for doing impedance matching, prevent signal reflex, the system is walked line traffic control as 50 ohm, so connect
During the situation of receiving end high resistant, it can be connected 50 ohm and matched by source, the signal absorption that end reflection is returned prevents
Emit again in source, position of the series resistance on pcb board will drive end close with signal.Clock signal terminal also concatenates
Resistance to eliminate apparent overshoot, resistance value for 33-50 Ou Jun can, chip use+3V3_ETH0 power supplies, capacitance CA13, CA15,
CA16 filters to ensure signal stabilization for signal.
It is serial ports isolation module circuit diagram referring to Fig. 4.Wherein, based on UART_TXD1, UART_RD_TX1, UART_RXD1
Control serial data reception, transmission and the data traffic organising port of chip;DQ13, DQ14 are high-speed data streamer every chip, type
Number be PC410;QG38 is low rate data streams direction controlling light every module, model PS2701;After Phototube Coupling, then by electricity
Flat conversion chip UH9 realizes that the serial ports Transistor-Transistor Logic level of main control chip is converted to RS485 signals, the model of electrical level transferring chip
SP485EEN;D40, D48, D44 are TVS pipe, can be by the limitation of input overvoltage within the specific limits;JK12 is signal testing point,
Convenient for testing differential signal;BR13, BR14 are protection type magnetic bead;GDT7 puts pipe for sky, and input terminal can be by energy when having high voltage
It is released by atmospherical discharges form;PTC13, PTC14 be self- recoverage protective tube, by electric current it is excessive when oneself open circuit, protection
Late-class circuit influences from overcurrent;1_RS485_A+, 1_RS485_B- are that differential signal is directly output to terminal.
Referring to Fig. 5, for JTAG download onlines module and the circuit diagram of TCL1117-3.3V power supplys.TAG download online modules
Download online programming program and step trakcing debugging can be achieved, by VCC, GND supplies cpu power for it, and TDO and TDI are test program
Data transmission, by RH34 and RH32, this two 10K resistance pulls up, and TCK drives for test program clock, passes through this 10K of RH30
Resistive pull-downs are to ground, and RST can reset CPU in real time, and by RH31 this 10K resistance pull-up, TMS is test program scheme control, is led to
RH33 this 10K resistance pull-up is crossed, external physical interfaces use 1.25mm spacing 8pin straight cuttings using diagram JM2 positions, terminal
Terminal.3.3V power modules are realized that power supply termination decoupling capacitance CK8 prevents front and rear circuit network electricity by TCL1117-3.3 chips
When flowing size variation, the rush of current formed in power supply circuit has an impact the normal work of network, decoupling circuit energy
The parasitic couplings between circuit network are enough effectively eliminated, ensure that powered stable is reliable.
Referring to Fig. 6, for master control and the power supply circuit of auxiliary processing module.Power supply circuit by master control power module and
TCL1117-3.3V power supplys form, and the output of master control power module is connected with the input of TCL1117-3.3V power supplys composition,
The output of TCL1117-3.3V power supplys is connected with the power input terminal of main control chip circuit.Master control power module is by MP1484 cores
Piece realizes that the chip is the 2A/23V/340KHz synchronous buck regulators of Xin Yuan companies of U.S. production.It is integrated with 85m Ω
MOSFET, input voltage range 4.75V-23V continue load current 3A.Under the pattern that turns on and off, source current is down to 1
Below μ A, adjustable soft start can prevent from shoving.12V0 is input service power supply, is connected to chip I N-terminal, CK3 and CK23 to move back
Coupling capacitance, EN are power supply chip Enable Pin, and connecting resistance RK1 pull-up, RK5, RK101 are test resistance, and FB is feedback end, passes through two
A precision resistance RK6, RK2 adjust output voltage, and DK3 is diode, and LK3 is wire-wound inductor, CK147, CK148, CK27, CK26
Respectively patch capacitor and straight cutting capacitance, for prime power filter, F3 is fuse, and CK30, CK31, CK29 are patch capacitor
With straight cutting capacitance, for rear class power filter, ensure that powered stable is reliable.
In conclusion the present invention a kind of intelligent auxiliary monitoring and control process device based on ARM platforms have it is small,
Precision is high, and external interference is small, and reliability and safe and circuit are simple easily practical, and intelligence conveying electricity safety prison is fully achieved
The safeguard protection effect of control system, there is good application prospect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification made within principle, equivalent substitution and improvement etc. should all be included in the protection scope of the present invention.