CN208353362U - A kind of distribution automation coded communication tester - Google Patents
A kind of distribution automation coded communication tester Download PDFInfo
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- CN208353362U CN208353362U CN201820994839.5U CN201820994839U CN208353362U CN 208353362 U CN208353362 U CN 208353362U CN 201820994839 U CN201820994839 U CN 201820994839U CN 208353362 U CN208353362 U CN 208353362U
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Abstract
A kind of distribution automation coded communication tester of the utility model, including shell, the front of the shell is provided with display screen and key, the back side of shell is provided with battery case and card slot, network interface and optical port are provided at the top of shell, the bottom of shell is provided with communication interface and power interface, is provided with circuit board in the shell；CPU control module, communication module, Security Encryption module, channel test module, display interactive module, parameter configuration module are provided on the circuit board；The present apparatus is hand held terminal unit, it is small in size, configuration it is simple, full-featured, easy to use, Security Encryption module carries out data interaction with the corresponding module of built-in manner and terminal inner, the present apparatus is arranged by relevant ciphering parameters and operating mode selection can be carried out testing, accuracy is high, it can improve with the malfunctioning node in quick diagnosis distribution automation communication transmission process and match website end equipment access efficiency.
Description
Technical field
The utility model belongs to the technical field of communication test instrument, and in particular to a kind of distribution automation coded communication test
Instrument.
Background technique
With gradually going deep into for smart grid construction, in order to guarantee the safe and stable operation of power distribution network, each distribution terminal
Producer also integrates the performance characteristic of respective equipment, has gradually carried out in its device public based on the SM2 elliptic curve under ECC system
The security protection transformation and upgrade of key cryptographic algorithm.In the access debugging process with website end equipment, either authentication is matched
Set mistake or security strategy offering question；Either key distribution or address configuration mistake all will affect distribution automation
The access of system, there is presently no good means to test distribution automation coded communication transmission process, in order to improve distribution
The access efficiency for end equipment of standing is badly in need of an instrument tested distribution automation coded communication transmission process.
Utility model content
The utility model overcomes the shortcomings of the prior art, technical problem to be solved are as follows: provides a kind of structure letter
Single, easy to use, portable distribution automation coded communication tester.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: a kind of distribution automation encryption is logical
Believe that tester, including shell, the front of the shell are provided with display screen and key, the back side of shell is provided with battery case and card
Slot is provided with network interface and optical port at the top of shell, and the bottom of shell is provided with communication interface and power interface, sets in the shell
It is equipped with circuit board；
CPU control module, communication module, Security Encryption module, channel test module, display are provided on the circuit board
Interactive module, parameter configuration module, the communication module are electrically connected by Security Encryption module with channel test module, described aobvious
Show that interactive module is electrically connected with channel test module, the channel test module, parameter configuration module respectively with CPU control module
Electrical connection.
Preferably, control chip U1, safe encryption module U13, transceiving chip U9 are provided on the circuit board；Receive and dispatch core
The end RO of piece U9 with control chip U1 the end PA1 be connected, the end ER of transceiving chip U9 be connected with the end DE of transceiving chip U9 afterwards and
The end PG8 for controlling chip U1 is connected, and the end DI of transceiving chip U9 is connected with the end PA2 of control chip U1, the GND of transceiving chip U9
End ground connection, the end A of transceiving chip U9 respectively with one end of resistance R2, one end of resistance R1, connector P2 third connecting terminal
Be connected, the end B of transceiving chip U9 respectively with the other end of resistance R2, one end of resistance R3, connector P2 the second connecting terminal
It is connected, the end VCC of transceiving chip U9 is connected with the power end of the other end of resistance R1, one end of capacitor C3,3.3V respectively, capacitor
The other end of C3 is connected with the other end of resistance R3, ground terminal respectively；
The end GND of safe encryption module U13 is grounded, the end MOSI of safe encryption module U13 and the PC12 of control chip U1
End is connected, and the end MISO of safe encryption module U13 is connected with the end PC11 of control chip U1, the end SSN of safe encryption module U13
It is connected with the end PB12 of control chip U1, the end SCK of safe encryption module U13 is connected with the end PB13 of control chip U1, safety
Be grounded after the end the VCC serial capacitance C4 of encryption module U13, the line between the end VCC and capacitor C4 of safe encryption module U13 with
The collector of PNP triode Q3 is connected, and the emitter of PNP triode Q3 is connected with power end, the base stage concatenation of PNP triode Q3
It is connected after resistance R4 with the end PF10 of control chip U1；
Preferably, network interface chip U4 and network interface chip U5 are additionally provided on the circuit board；The of the network interface chip U5
One connecting terminal is connected with the second connecting terminal of connector P50, and the first connecting terminal of connector P50 is with control chip U1's
The end PC12 is connected, and the second connecting terminal of network interface chip U5 is connected with the second connecting terminal of connector P52, connector P52's
First connecting terminal is connected with the end PC10 of control chip U1, and the third connecting terminal of network interface chip U5 is with control chip U1's
PD3 be connected, the 4th connecting terminal of network interface chip U5 is connected with the power end of 5V, the 5th connecting terminal of network interface chip U5 and
The power end of 3.3V is connected, and the power end of 3.3V passes through capacitor C50, capacitor C51 ground connection, the 6th wiring of network interface chip U5 respectively
Terminal is connected with the second connecting terminal of connector P51, the first connecting terminal of connector P51 and the end PC11 of control chip U1
Be connected, the 8th connecting terminal of network interface chip U5 is connected with the PD2 of control chip U1, the 9th connecting terminal of network interface chip U5 and
The second connecting terminal of connector P53 is connected, and the first connecting terminal of connector P53 is connected with the PD12 of control chip U1；
The first connecting terminal of network interface chip U4 is connected with the second connecting terminal of connector P54, and the first of connector P54
Connecting terminal is connected with the end PA7 of control chip U1, the second wiring of the second connecting terminal and connector P56 of network interface chip U4
Terminal is connected, and the first connecting terminal of connector P56 is connected with the end PA5 of control chip U1, the third wiring of network interface chip U4
Terminal is connected with the PD7 of control chip U1, and the 4th connecting terminal of network interface chip U4 is connected with the power end of 5V, network interface chip U4
The 5th connecting terminal be connected with the power end of 3.3V, the power end of 3.3V pass through respectively capacitor C52, capacitor C53 ground connection, network interface
The 6th connecting terminal of chip U4 is connected with the second connecting terminal of connector P55, the first connecting terminal of connector P55 and control
The end PA6 of coremaking piece U1 is connected, and the 8th connecting terminal of network interface chip U4 is connected with the PA12 of control chip U1, network interface chip U4
The 9th connecting terminal be connected with the second connecting terminal of connector P57, the first connecting terminal of connector P57 and control chip
The PD11 of U1 is connected.
Preferably, jtag interface mould group U2, keystroke interface U3 and LCD interface U12 are additionally provided on the circuit board；It is described
The vdd terminal of jtag interface mould group U2 respectively with the VCC power end of 3.3V, one end of resistance R21, one end of resistance R22, resistance
One end of R23, resistance R24 one end be connected, the end TRST of jtag interface mould group U2 respectively with the end PB4 of control chip U1, electricity
The other end for hindering R21 is connected, the end TD1 of jtag interface mould group U2 respectively with the control end PA15 of chip U1, resistance R22 it is another
End is connected, and the end TMS of jtag interface mould group U2 is connected with the other end of the end PA13 of control chip U1, resistance R23 respectively, JTAG
It is grounded after series resistor R25 after the end TCK of interface module U2 is connected with the end PA14 of control chip U1 respectively, jtag interface mould group
The end TDO of U2 is connected with the other end of the end PB3 of control chip U1, resistance R24 respectively, the end RESET of jtag interface mould group U2
It is connected with the end NRST of control chip U1；
The end KEY_1 of keystroke interface U3 is connected with the end PF0 of control chip U1, the end KEY_2 of keystroke interface U3 and control
The end PF1 of chip U1 is connected, and the end KEY_3 of keystroke interface U3 is connected with the end PF2 of control chip U1, the KEY_ of keystroke interface U3
4 ends are connected with the end PF3 of control chip U1, and the end KEY_5 of keystroke interface U3 is connected with the end PF4 of control chip U1, by bonded
The end KEY_6 of mouth U3 is connected with the end PF5 of control chip U1, the end KEY_7 of keystroke interface U3 and the end the PF6 phase of control chip U1
Even, the end KEY_8 of keystroke interface U3 is connected with the end PF7 of control chip U1, the end KEY_9 of keystroke interface U3 and control chip U1
The end PF8 be connected, the end KEY_10 of keystroke interface U3 is connected with the end PF9 for controlling chip U1；
The end CS of LCD interface U12 is connected with the end PG12 of control chip U1, the end WR of LCD interface U12 and control chip U1
The end PD5 be connected, the end RST of LCD interface U12 is connected with the end RESET of control chip U1, the end DB1 of LCD interface U12 with control
The end PD15 of coremaking piece U1 is connected, and the end DB3 of LCD interface U12 is connected with the end PD1 of control chip U1, the DB5 of LCD interface U12
It holds and is connected with the end PE8 of control chip U1, the end DB7 of LCD interface U12 is connected with the end PE10 of control chip U1, LCD interface
The end DB9 of U12 is connected with the end PE12 of control chip U1, the end DB11 of LCD interface U12 and the end the PE14 phase of control chip U1
Even, the end DB13 of LCD interface U12 is connected with the end PD8 of control chip U1, and the end DB15 of LCD interface U12 is with control chip U1's
The end PD10 is connected, and the end BL of LCD interface U12 is connected with the end PB15 of control chip U1, the end MISO of LCD interface U12 and control
The end PB2 of chip U1 is connected, and the end T_PEN of LCD interface U12 is connected with the end PB1 of control chip U1, the T_CS of LCD interface U12
It holds and is connected with the end PC13 of control chip U1, the end RS of LCD interface U12 is connected with the end PF12 of control chip U1, LCD interface
The end RD of U12 is connected with the end PD4 of control chip U1, and the end DB0 of LCD interface U12 is connected with the end PD14 of control chip U1,
The end DB2 of LCD interface U12 is connected with the end PD0 of control chip U1, the end DB4 of LCD interface U12 and the end PE7 of control chip U1
It is connected, the end DB6 of LCD interface U12 is connected with the end PE9 of control chip U1, and the end DB8 of LCD interface U12 is with control chip U1's
The end PE11 is connected, and the end DB10 of LCD interface U12 is connected with the end PE13 of control chip U1, the end DB12 of LCD interface U12 and control
The end PE15 of coremaking piece U1 is connected, and the end DB14 of LCD interface U12 is connected with the end PD9 of control chip U1；LCD interface U12's
The end GND is grounded after being connected with one end of capacitor C13, the other end of capacitor C13 respectively with the vdd terminal of LCD interface U12,3.3V
VCC power end is connected, and the end GND of LCD interface U12 is grounded after being connected with one end of capacitor C14, the other end difference of capacitor C14
It is connected with the VCC power end of the vdd terminal of LCD interface U12,5V, the end MOSI of LCD interface U12 and the end PF11 of control chip U1
It is connected, the end CLK of LCD interface U12 is connected with the end PB0 of control chip U1.
Preferably, power circuit and battery charger are provided on the circuit board, the power circuit includes pressure stabilizing
Device U6, voltage stabilizing chip U7 and voltage stabilizing chip U8, the battery charger include power supply chip U11；
The end VIN of the power supply chip U11 is connected with one end of the anode of battery H2, capacitor C1 respectively, power supply chip U11
The end PWPD respectively with the cathode of battery H2, the other end of capacitor C1, the end GND of power supply chip U11, diode D1 anode,
One end of resistance R7, capacitor C3 one end be connected after be grounded, the line between the other end of resistance R7 and one end of resistance R6 with
The end BOOT at the end VSNS of power supply chip U11, power supply chip U11 is connected by capacitor C2 with the end PH of power supply chip U11, power supply
The end PH of chip U11 is also connected with one end of the cathode of diode D1, inductance L5, and the other end of inductance L5 is respectively with resistance R6's
The other end, the other end of capacitor C3, one end of resistance R8, diode D2 anode be connected, the cathode of diode D2 respectively with electricity
Hinder one end of R9, the drain electrode of field-effect tube Q1 is connected, the other end of resistance R9 respectively with one end of resistance R10, control chip U1
The end PC3 be connected, the other end of resistance R10 ground connection, the source electrode of field-effect tube Q1 respectively with one end of resistance R11, charge switch
Anode be connected, line between the other end and one end of resistance R12 of resistance R11 is connected with the end PC4 of control chip U1, electric
Hinder the other end ground connection of R12, the grid of the field-effect tube Q1 collector phase with the other end of resistance R8, photo-coupler Q2 respectively
Even, the emitter of photo-coupler Q2, minus earth, the PD13 that the anode of photo-coupler Q2 passes through resistance R13 and control chip U1
End is connected；
The end IN of voltage stabilizing chip U7 respectively with one end of capacitor C6, one end of capacitor C5, one end of resistance R14, diode
The cathode of D4, the cathode of diode D3 are connected, and the anode of diode D3 is passing sequentially through the power supply of resistance R13, switch and 16.8V just
Extremely be connected, the power cathode of 16.8V respectively with the anode of diode D4, the cathode of light emitting diode D5, diode D10 just
Pole, the cathode of light emitting diode D11 are connected, and the anode of light emitting diode D5 is connected with the other end of resistance R14, and capacitor C5's is another
One end and the other end of capacitor C6, the end ON of voltage stabilizing chip U7, the end GND of voltage stabilizing chip U7, the anode of diode D6, capacitor C7
One end, one end of capacitor C8, the anode of diode D7, light emitting diode D8 cathode be connected after be grounded, diode D6's is negative
Pole is connected with one end of the OUT terminal of voltage stabilizing chip U7, inductance L1 respectively, and the other end of inductance L1 is respectively with voltage stabilizing chip U7's
The end BACK, the other end of capacitor C7, the other end of capacitor C8, resistance R15 one end be connected, the other end of resistance R15 respectively with
The cathode of diode D7, one end of resistance R16, the VCC power end of 5V are connected, the other end and light emitting diode D8 of resistance R16
Anode be connected；
Line between resistance R13 and switches is connected by resistance R17 with the anode of diode D9, diode D9's
Cathode respectively with the cathode of diode D10, one end of resistance R18, one end of capacitor C9, one end of capacitor C10, voltage stabilizing chip U8
The end IN be connected, the other end of resistance R18 is connected with the anode of light emitting diode D11, and the other end of capacitor C9 is with capacitor C10's
The other end, the end ON of voltage stabilizing chip U8, the end GND of voltage stabilizing chip U8, the anode of diode D12, one end of capacitor C11, capacitor
One end of C12, the anode of diode D13, light emitting diode D14 cathode be connected after be grounded, the cathode of diode D12 respectively with
The OUT terminal of voltage stabilizing chip U8, inductance L2 one end be connected, the other end of inductance L2 respectively with the end BACK of voltage stabilizing chip U8, electricity
Hold the other end of C11, the other end of capacitor C12, resistance R19 one end be connected, the other end of resistance R19 respectively with diode
The cathode of D13, one end of resistance R20, the VCC power end of 12V are connected, and the other end and light emitting diode D14 of resistance R20 is just
Extremely it is connected；
The end IN of voltage-stablizer U6 is connected with the VCC power end of one end of capacitor C32, one end of capacitor C33,5V respectively, surely
The end GND of depressor U6 respectively with the other end of capacitor C32, the other end of capacitor C33, one end of capacitor C31, capacitor C30 one
End, the anode of diode D30, light emitting diode D31 cathode be connected after be grounded, the OUT terminal of voltage-stablizer U6 respectively with capacitor C31
The other end, capacitor C30 the other end be connected, respectively with diode D30's after the OUT terminal of voltage-stablizer U6 concatenation fuse R29
Cathode, one end of resistance R30, the VCC power end of 3.3V are connected, the other end and the light emitting diode D31 anode phase of resistance R30
Even.
Preferably, the model STM32F407ZET6, the model SP3485 of transceiving chip U9 of the control chip U1；
Preferably, the model W5500 of the network interface chip U4, network interface chip U5.
Preferably, the model LM2596-5 of the model AMS1117-3.3 of the voltage-stablizer U6, voltage stabilizing chip U7, surely
Press the model LM2596-12, the model TPS5430 of power supply chip U11 of chip U8.
The utility model has the advantages that compared with prior art
The present apparatus is hand held terminal unit, small in size, simple, full-featured, easy to use, the Security Encryption module of configuration
Data interaction is carried out with the corresponding module of built-in manner and terminal inner, the present apparatus is arranged by relevant ciphering parameters and Working mould
Formula selection can be carried out testing, and accuracy is high, can with the malfunctioning node in quick diagnosis distribution automation communication transmission process,
It improves and matches website end equipment access efficiency.
Detailed description of the invention
The utility model is described in more detail with reference to the accompanying drawing.
Fig. 1 is the front view of the utility model；
Fig. 2 is the rearview of the utility model；
Fig. 3 is the top view of the utility model；
Fig. 4 is the bottom view of the utility model；
Fig. 5 is the structural schematic diagram of circuit board in the utility model；
Fig. 6 is the circuit structure diagram that chip U1 is controlled in the utility model；
Fig. 7 is the circuit structure diagram of safe encryption module U13 in the utility model；
Fig. 8 is the circuit structure diagram of transceiving chip U9 in the utility model；
Fig. 9 is the circuit structure diagram of network interface chip U4 and network interface chip U5 in the utility model；
Figure 10 is jtag interface mould group U2 in the utility model；
Figure 11 is the circuit structure diagram of keystroke interface U3 in the utility model；
Figure 12 is the circuit structure diagram of LCD interface U12 in the utility model；
Figure 13 is the circuit structure diagram of power circuit in the utility model；
Figure 14 is the circuit structure diagram of battery charger in the utility model；
In figure: 1 is shell, and 2 be display screen, and 3 be key, and 4 be network interface, and 5 be optical port, and 6 be communication interface, and 7 connect for power supply
Mouthful, 8 be CPU control module, and 9 be communication module, and 10 be Security Encryption module, and 11 be channel test module, and 12 be display interaction
Module, 13 be parameter configuration module, and 14 be battery case, and 15 be card slot.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments；Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
As shown in Figures 1 to 4, a kind of distribution automation coded communication tester, including shell 1, the front of the shell 1
It is provided with display screen 2 and key 3, the back side of shell 1 is provided with battery case 14 and card slot 15, and the top of shell 1 is provided with network interface 4
With optical port 5, the bottom of shell 1 is provided with communication interface 6 and power interface 7, is provided with circuit board in the shell 1；
As shown in figure 5, being provided with CPU control module 8 on the circuit board, communication module 9, Security Encryption module 10, leading to
Road test module 11, display interactive module 12, parameter configuration module 13, the communication module 9 by Security Encryption module 10 with
Channel test module 11 is electrically connected, and the display interactive module 12 is electrically connected with channel test module 11, the lane testing mould
Block 11, parameter configuration module 13 are electrically connected with CPU control module 8 respectively.
Fig. 6 is the circuit structure diagram for controlling chip U1, and Fig. 7 is the circuit structure diagram of safe encryption module U13, and Fig. 8 is to receive
The circuit structure diagram of chip U9 is sent out, as shown in Figure 6 to 8, control chip U1, safe encryption module are provided on the circuit board
U13, transceiving chip U9；Control the model STM32F407ZET6, the model SP3485 of transceiving chip U9 of chip U1；
The end RO of transceiving chip U9 is connected with the end PA1 of control chip U1, the end ER of transceiving chip U9 and transceiving chip U9
The end DE be connected after be connected with the end PG8 of control chip U1, the end DI of transceiving chip U9 is connected with the end PA2 for controlling chip U1,
The end GND of transceiving chip U9 is grounded, the end A of transceiving chip U9 respectively with one end of resistance R2, one end of resistance R1, connector P2
Third connecting terminal be connected, the end B of transceiving chip U9 respectively with the other end of resistance R2, one end of resistance R3, connector P2
The second connecting terminal be connected, the end VCC of transceiving chip U9 respectively with the other end of resistance R1, one end of capacitor C3,3.3V
Power end is connected, and the other end of capacitor C3 is connected with the other end of resistance R3, ground terminal respectively；
The end GND of safe encryption module U13 is grounded, the end MOSI of safe encryption module U13 and the PC12 of control chip U1
End is connected, and the end MISO of safe encryption module U13 is connected with the end PC11 of control chip U1, the end SSN of safe encryption module U13
It is connected with the end PB12 of control chip U1, the end SCK of safe encryption module U13 is connected with the end PB13 of control chip U1, safety
Be grounded after the end the VCC serial capacitance C4 of encryption module U13, the line between the end VCC and capacitor C4 of safe encryption module U13 with
The collector of PNP triode Q3 is connected, and the emitter of PNP triode Q3 is connected with power end, the base stage concatenation of PNP triode Q3
It is connected after resistance R4 with the end PF10 of control chip U1；
Fig. 9 is the circuit structure diagram of network interface chip U4 and network interface chip U5, as shown in figure 9, also setting up on the circuit board
There are network interface chip U4 and network interface chip U5；The model W5500 of network interface chip U4, network interface chip U5；
The first connecting terminal of the network interface chip U5 is connected with the second connecting terminal of connector P50, connector P50's
First connecting terminal is connected with the end PC12 of control chip U1, and the of the second connecting terminal of network interface chip U5 and connector P52
Two connecting terminals are connected, and the first connecting terminal of connector P52 is connected with the end PC10 for controlling chip U1, and the of network interface chip U5
Three connecting terminals are connected with the PD3 of control chip U1, and the 4th connecting terminal of network interface chip U5 is connected with the power end of 5V, network interface
The 5th connecting terminal of chip U5 is connected with the power end of 3.3V, and the power end of 3.3V passes through capacitor C50 respectively, capacitor C51 connects
6th connecting terminal on ground, network interface chip U5 is connected with the second connecting terminal of connector P51, the first wiring of connector P51
Terminal is connected with the end PC11 of control chip U1, and the 8th connecting terminal of network interface chip U5 is connected with the PD2 of control chip U1, net
The 9th connecting terminal of mouthful chip U5 is connected with the second connecting terminal of connector P53, the first connecting terminal of connector P53 and
The PD12 for controlling chip U1 is connected；
The first connecting terminal of network interface chip U4 is connected with the second connecting terminal of connector P54, and the first of connector P54
Connecting terminal is connected with the end PA7 of control chip U1, the second wiring of the second connecting terminal and connector P56 of network interface chip U4
Terminal is connected, and the first connecting terminal of connector P56 is connected with the end PA5 of control chip U1, the third wiring of network interface chip U4
Terminal is connected with the PD7 of control chip U1, and the 4th connecting terminal of network interface chip U4 is connected with the power end of 5V, network interface chip U4
The 5th connecting terminal be connected with the power end of 3.3V, the power end of 3.3V pass through respectively capacitor C52, capacitor C53 ground connection, network interface
The 6th connecting terminal of chip U4 is connected with the second connecting terminal of connector P55, the first connecting terminal of connector P55 and control
The end PA6 of coremaking piece U1 is connected, and the 8th connecting terminal of network interface chip U4 is connected with the PA12 of control chip U1, network interface chip U4
The 9th connecting terminal be connected with the second connecting terminal of connector P57, the first connecting terminal of connector P57 and control chip
The PD11 of U1 is connected.
Figure 10 is the circuit structure diagram of jtag interface mould group U2, and Figure 11 is the circuit structure diagram of keystroke interface U3, Tu12Wei
The circuit structure diagram of LCD interface U12, as shown in Figure 10 to Figure 12, be additionally provided on the circuit board jtag interface mould group U2, by
Bonded mouth U3 and LCD interface U12；
The vdd terminal of the jtag interface mould group U2 respectively with the VCC power end of 3.3V, one end of resistance R21, resistance R22
One end, one end of resistance R23, resistance R24 one end be connected, the end TRST of jtag interface mould group U2 respectively with control chip U1
The end PB4, resistance R21 the other end be connected, the end TD1 of jtag interface mould group U2 respectively with the control end PA15 of chip U1, electricity
The other end for hindering R22 is connected, the end TMS of jtag interface mould group U2 respectively with the control end PA13 of chip U1, resistance R23 it is another
End is connected, and is grounded after series resistor R25 after the end TCK of jtag interface mould group U2 is connected with the end PA14 of control chip U1 respectively,
The end TDO of jtag interface mould group U2 is connected with the other end of the end PB3 of control chip U1, resistance R24 respectively, jtag interface mould group
The end RESET of U2 is connected with the end NRST of control chip U1；
The end KEY_1 of keystroke interface U3 is connected with the end PF0 of control chip U1, the end KEY_2 of keystroke interface U3 and control
The end PF1 of chip U1 is connected, and the end KEY_3 of keystroke interface U3 is connected with the end PF2 of control chip U1, the KEY_ of keystroke interface U3
4 ends are connected with the end PF3 of control chip U1, and the end KEY_5 of keystroke interface U3 is connected with the end PF4 of control chip U1, by bonded
The end KEY_6 of mouth U3 is connected with the end PF5 of control chip U1, the end KEY_7 of keystroke interface U3 and the end the PF6 phase of control chip U1
Even, the end KEY_8 of keystroke interface U3 is connected with the end PF7 of control chip U1, the end KEY_9 of keystroke interface U3 and control chip U1
The end PF8 be connected, the end KEY_10 of keystroke interface U3 is connected with the end PF9 for controlling chip U1；
The end CS of LCD interface U12 is connected with the end PG12 of control chip U1, the end WR of LCD interface U12 and control chip U1
The end PD5 be connected, the end RST of LCD interface U12 is connected with the end RESET of control chip U1, the end DB1 of LCD interface U12 with control
The end PD15 of coremaking piece U1 is connected, and the end DB3 of LCD interface U12 is connected with the end PD1 of control chip U1, the DB5 of LCD interface U12
It holds and is connected with the end PE8 of control chip U1, the end DB7 of LCD interface U12 is connected with the end PE10 of control chip U1, LCD interface
The end DB9 of U12 is connected with the end PE12 of control chip U1, the end DB11 of LCD interface U12 and the end the PE14 phase of control chip U1
Even, the end DB13 of LCD interface U12 is connected with the end PD8 of control chip U1, and the end DB15 of LCD interface U12 is with control chip U1's
The end PD10 is connected, and the end BL of LCD interface U12 is connected with the end PB15 of control chip U1, the end MISO of LCD interface U12 and control
The end PB2 of chip U1 is connected, and the end T_PEN of LCD interface U12 is connected with the end PB1 of control chip U1, the T_CS of LCD interface U12
It holds and is connected with the end PC13 of control chip U1, the end RS of LCD interface U12 is connected with the end PF12 of control chip U1, LCD interface
The end RD of U12 is connected with the end PD4 of control chip U1, and the end DB0 of LCD interface U12 is connected with the end PD14 of control chip U1,
The end DB2 of LCD interface U12 is connected with the end PD0 of control chip U1, the end DB4 of LCD interface U12 and the end PE7 of control chip U1
It is connected, the end DB6 of LCD interface U12 is connected with the end PE9 of control chip U1, and the end DB8 of LCD interface U12 is with control chip U1's
The end PE11 is connected, and the end DB10 of LCD interface U12 is connected with the end PE13 of control chip U1, the end DB12 of LCD interface U12 and control
The end PE15 of coremaking piece U1 is connected, and the end DB14 of LCD interface U12 is connected with the end PD9 of control chip U1；LCD interface U12's
The end GND is grounded after being connected with one end of capacitor C13, the other end of capacitor C13 respectively with the vdd terminal of LCD interface U12,3.3V
VCC power end is connected, and the end GND of LCD interface U12 is grounded after being connected with one end of capacitor C14, the other end difference of capacitor C14
It is connected with the VCC power end of the vdd terminal of LCD interface U12,5V, the end MOSI of LCD interface U12 and the end PF11 of control chip U1
It is connected, the end CLK of LCD interface U12 is connected with the end PB0 of control chip U1.
Figure 13 is the circuit structure diagram of power circuit, and Figure 14 is the circuit structure diagram of battery charger, such as Figure 13, Figure 14
It is shown, power circuit and battery charger are provided on the circuit board, the power circuit includes voltage-stablizer U6, pressure stabilizing core
Piece U7 and voltage stabilizing chip U8, the battery charger include power supply chip U11；The model AMS1117- of the voltage-stablizer U6
The model LM2596-12 of the model LM2596-5 of 3.3, voltage stabilizing chip U7, voltage stabilizing chip U8, the type of power supply chip U11
Number be TPS5430；
The end VIN of the power supply chip U11 is connected with one end of the anode of battery H2, capacitor C1 respectively, power supply chip U11
The end PWPD respectively with the cathode of battery H2, the other end of capacitor C1, the end GND of power supply chip U11, diode D1 anode,
One end of resistance R7, capacitor C3 one end be connected after be grounded, the line between the other end of resistance R7 and one end of resistance R6 with
The end BOOT at the end VSNS of power supply chip U11, power supply chip U11 is connected by capacitor C2 with the end PH of power supply chip U11, power supply
The end PH of chip U11 is also connected with one end of the cathode of diode D1, inductance L5, and the other end of inductance L5 is respectively with resistance R6's
The other end, the other end of capacitor C3, one end of resistance R8, diode D2 anode be connected, the cathode of diode D2 respectively with electricity
Hinder one end of R9, the drain electrode of field-effect tube Q1 is connected, the other end of resistance R9 respectively with one end of resistance R10, control chip U1
The end PC3 be connected, the other end of resistance R10 ground connection, the source electrode of field-effect tube Q1 respectively with one end of resistance R11, charge switch
Anode be connected, line between the other end and one end of resistance R12 of resistance R11 is connected with the end PC4 of control chip U1, electric
Hinder the other end ground connection of R12, the grid of the field-effect tube Q1 collector phase with the other end of resistance R8, photo-coupler Q2 respectively
Even, the emitter of photo-coupler Q2, minus earth, the PD13 that the anode of photo-coupler Q2 passes through resistance R13 and control chip U1
End is connected；
The end IN of voltage stabilizing chip U7 respectively with one end of capacitor C6, one end of capacitor C5, one end of resistance R14, diode
The cathode of D4, the cathode of diode D3 are connected, and the anode of diode D3 is passing sequentially through the power supply of resistance R13, switch and 16.8V just
Extremely be connected, the power cathode of 16.8V respectively with the anode of diode D4, the cathode of light emitting diode D5, diode D10 just
Pole, the cathode of light emitting diode D11 are connected, and the anode of light emitting diode D5 is connected with the other end of resistance R14, and capacitor C5's is another
One end and the other end of capacitor C6, the end ON of voltage stabilizing chip U7, the end GND of voltage stabilizing chip U7, the anode of diode D6, capacitor C7
One end, one end of capacitor C8, the anode of diode D7, light emitting diode D8 cathode be connected after be grounded, diode D6's is negative
Pole is connected with one end of the OUT terminal of voltage stabilizing chip U7, inductance L1 respectively, and the other end of inductance L1 is respectively with voltage stabilizing chip U7's
The end BACK, the other end of capacitor C7, the other end of capacitor C8, resistance R15 one end be connected, the other end of resistance R15 respectively with
The cathode of diode D7, one end of resistance R16, the VCC power end of 5V are connected, the other end and light emitting diode D8 of resistance R16
Anode be connected；
Line between resistance R13 and switches is connected by resistance R17 with the anode of diode D9, diode D9's
Cathode respectively with the cathode of diode D10, one end of resistance R18, one end of capacitor C9, one end of capacitor C10, voltage stabilizing chip U8
The end IN be connected, the other end of resistance R18 is connected with the anode of light emitting diode D11, and the other end of capacitor C9 is with capacitor C10's
The other end, the end ON of voltage stabilizing chip U8, the end GND of voltage stabilizing chip U8, the anode of diode D12, one end of capacitor C11, capacitor
One end of C12, the anode of diode D13, light emitting diode D14 cathode be connected after be grounded, the cathode of diode D12 respectively with
The OUT terminal of voltage stabilizing chip U8, inductance L2 one end be connected, the other end of inductance L2 respectively with the end BACK of voltage stabilizing chip U8, electricity
Hold the other end of C11, the other end of capacitor C12, resistance R19 one end be connected, the other end of resistance R19 respectively with diode
The cathode of D13, one end of resistance R20, the VCC power end of 12V are connected, and the other end and light emitting diode D14 of resistance R20 is just
Extremely it is connected；
The end IN of voltage-stablizer U6 is connected with the VCC power end of one end of capacitor C32, one end of capacitor C33,5V respectively, surely
The end GND of depressor U6 respectively with the other end of capacitor C32, the other end of capacitor C33, one end of capacitor C31, capacitor C30 one
End, the anode of diode D30, light emitting diode D31 cathode be connected after be grounded, the OUT terminal of voltage-stablizer U6 respectively with capacitor C31
The other end, capacitor C30 the other end be connected, respectively with diode D30's after the OUT terminal of voltage-stablizer U6 concatenation fuse R29
Cathode, one end of resistance R30, the VCC power end of 3.3V are connected, the other end and the light emitting diode D31 anode phase of resistance R30
Even.
Security Encryption module 10 is arranged in the present apparatus, and the Security Encryption module 10 includes key management module and safe sign test
Module is received and dispatched by the encryption and decryption that the communication networks such as GPRS/PON carry out data, the data of transmitting-receiving and channel test module 11 into
Row data exchange issues the test that test command carries out channel by channel test module 11, and test result is shown in display interaction
In module 12；The present apparatus can also simulate the equipment such as DTU, FTU, carry out the parameters such as specification and address by parameter configuration module 13
Then configuration simulates the data that DTU, FTU and fault detector issue by CPU control module 8 and is sent to safe encryption
Module 10 carries out standard IEC 60870-5-104 specification message using the close SM2 asymmetric arithmetic of state by Security Encryption module 10
Then digital signature is encrypted using prepackage key pair digital signature, encrypted digital signature is finally attached to standard
Compound IEC60870-5-104 message is formed after message, timestamp is sent to distribution automation by communication networks such as GPRS/PON
Main station system, for testing the accuracy of main website and station end apparatus configuration.
The key export of Security Encryption module 10 is first carried out certificate issuance using preceding by the utility model, is then introduced into main website
Densification network shutdown, while the grant a certificate of main website gateway machine is imported into Security Encryption module 10, GPRS/PON is then communicated into mould
Block 9 is opened and energy normal use, and the ginseng of corresponding specification, address and analogue data variation is arranged by parameter configuration module 13
Number, finally also needs whether testing encryption tunnel is successfully established, then can be carried out network encryption function by corresponding module
The test job of energy.
The utility model can guarantee the secure communication of distribution automation terminal/substation, avoid automatization terminal/substation by
Malice remote control command is tampered or issued to the attack of lawless people, communication message, it can be to distribution automation communication packet
The instrument that the process statuses such as authentication, encrypted transmission, integrity detection, timestamp verification are tested, the present apparatus is to distribution
Test is encrypted in the message of automation, while can carry out simulation to DTU, FTU device and send certification, encryption data,
Through network channel to distribution automation main website, the judgement of received data is recognized by longitudinal encryption gateway of distribution automation main website
Demonstrate,prove the correctness for the states such as identity, key signature, message are reset, timeliness verifies；The present apparatus can also support IEC60870-5-
The encryption and decryption of 101 and IEC60870-5-104 specification communicates.
The present apparatus is hand held terminal unit, small in size, simple, full-featured, easy to use, the Security Encryption module of configuration
Data interaction is carried out with the corresponding module of built-in manner and terminal inner, the present apparatus is arranged by relevant ciphering parameters and Working mould
Formula selection can be carried out testing, and accuracy is high, can with the malfunctioning node in quick diagnosis distribution automation communication transmission process,
It improves and matches website end equipment access efficiency.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (8)
1. a kind of distribution automation coded communication tester, including shell (1), it is characterised in that: the front of the shell (1) is set
It is equipped with display screen (2) and key (3), the back side of shell (1) is provided with battery case (14) and card slot (15), the top of shell (1)
It is provided with network interface (4) and optical port (5), the bottom of shell (1) is provided with communication interface (6) and power interface (7), the shell
(1) circuit board is provided in；
CPU control module (8), communication module (9), Security Encryption module (10), lane testing mould are provided on the circuit board
Block (11), display interactive module (12), parameter configuration module (13), the communication module (9) pass through Security Encryption module (10)
It is electrically connected with channel test module (11), the display interactive module (12) is electrically connected with channel test module (11), described logical
Road test module (11), parameter configuration module (13) are electrically connected with CPU control module (8) respectively.
2. a kind of distribution automation coded communication tester according to claim 1, it is characterised in that: on the circuit board
It is provided with control chip U1, safe encryption module U13, transceiving chip U9；
The end RO of transceiving chip U9 is connected with the end PA1 of control chip U1, the end ER of transceiving chip U9 and the DE of transceiving chip U9
End is connected after being connected with the end PG8 of control chip U1, and the end DI of transceiving chip U9 is connected with the end PA2 of control chip U1, receives and dispatches
The end GND of chip U9 is grounded, the end A of transceiving chip U9 respectively with one end of resistance R2, one end of resistance R1, connector P2 the
Three connecting terminals are connected, the end B of transceiving chip U9 respectively with the other end of resistance R2, one end of resistance R3, connector P2 the
Two connecting terminals be connected, the end VCC of transceiving chip U9 respectively with the other end of resistance R1, one end of capacitor C3,3.3V power supply
End is connected, and the other end of capacitor C3 is connected with the other end of resistance R3, ground terminal respectively；
The end GND of safe encryption module U13 is grounded, the end MOSI of safe encryption module U13 and the end the PC12 phase of control chip U1
Even, the end MISO of safe encryption module U13 is connected with the end PC11 of control chip U1, the end SSN of safe encryption module U13 and control
The end PB12 of coremaking piece U1 is connected, and the end SCK of safe encryption module U13 is connected with the end PB13 of control chip U1, and safety encrypts
It is grounded after the end the VCC serial capacitance C4 of mould group U13, the line and PNP between the end VCC and capacitor C4 of safe encryption module U13
The collector of triode Q3 is connected, and the emitter of PNP triode Q3 is connected with power end, and the base stage of PNP triode Q3 concatenates electricity
It is connected after resistance R4 with the end PF10 of control chip U1.
3. a kind of distribution automation coded communication tester according to claim 2, it is characterised in that: on the circuit board
It is additionally provided with network interface chip U4 and network interface chip U5；
The first connecting terminal of the network interface chip U5 is connected with the second connecting terminal of connector P50, and the first of connector P50
Connecting terminal is connected with the end PC12 of control chip U1, and the second connecting terminal of network interface chip U5 connects with the second of connector P52
Line terminals are connected, and the first connecting terminal of connector P52 is connected with the end PC10 of control chip U1, and the third of network interface chip U5 connects
Line terminals are connected with the PD3 of control chip U1, and the 4th connecting terminal of network interface chip U5 is connected with the power end of 5V, network interface chip
The 5th connecting terminal of U5 is connected with the power end of 3.3V, and the power end of 3.3V passes through capacitor C50, capacitor C51 ground connection, net respectively
The 6th connecting terminal of mouthful chip U5 is connected with the second connecting terminal of connector P51, the first connecting terminal of connector P51 and
The end PC11 for controlling chip U1 is connected, and the 8th connecting terminal of network interface chip U5 is connected with the PD2 of control chip U1, network interface chip
The 9th connecting terminal of U5 is connected with the second connecting terminal of connector P53, the first connecting terminal and control core of connector P53
The PD12 of piece U1 is connected；
The first connecting terminal of network interface chip U4 is connected with the second connecting terminal of connector P54, the first wiring of connector P54
Terminal is connected with the end PA7 of control chip U1, the second connecting terminal of network interface chip U4 and the second connecting terminal of connector P56
It is connected, the first connecting terminal of connector P56 is connected with the end PA5 of control chip U1, the third connecting terminal of network interface chip U4
It is connected with the PD7 of control chip U1, the 4th connecting terminal of network interface chip U4 is connected with the power end of 5V, and the of network interface chip U4
Five connecting terminals are connected with the power end of 3.3V, and the power end of 3.3V passes through capacitor C52, capacitor C53 ground connection, network interface chip respectively
The 6th connecting terminal of U4 is connected with the second connecting terminal of connector P55, the first connecting terminal and control core of connector P55
The end PA6 of piece U1 is connected, and the 8th connecting terminal of network interface chip U4 is connected with the PA12 for controlling chip U1, and the of network interface chip U4
Nine connecting terminals are connected with the second connecting terminal of connector P57, and the first connecting terminal of connector P57 is with control chip U1's
PD11 is connected.
4. a kind of distribution automation coded communication tester according to claim 2, it is characterised in that: on the circuit board
It is additionally provided with jtag interface mould group U2, keystroke interface U3 and LCD interface U12；
The vdd terminal of the jtag interface mould group U2 respectively with the VCC power end of 3.3V, one end of resistance R21, resistance R22 one
End, one end of resistance R23, one end of resistance R24 are connected, and the end TRST of jtag interface mould group U2 is respectively with control chip U1's
The end PB4, resistance R21 the other end be connected, the end TD1 of jtag interface mould group U2 respectively with the control end PA15 of chip U1, resistance
The other end of R22 is connected, the end TMS of the jtag interface mould group U2 other end with the end PA13 of control chip U1, resistance R23 respectively
It is connected, is grounded after series resistor R25 after the end TCK of jtag interface mould group U2 is connected with the end PA14 of control chip U1 respectively,
The end TDO of jtag interface mould group U2 is connected with the other end of the end PB3 of control chip U1, resistance R24 respectively, jtag interface mould group
The end RESET of U2 is connected with the end NRST of control chip U1；
The end KEY_1 of keystroke interface U3 is connected with the end PF0 of control chip U1, the end KEY_2 of keystroke interface U3 and control chip
The end PF1 of U1 is connected, and the end KEY_3 of keystroke interface U3 is connected with the end PF2 of control chip U1, the end KEY_4 of keystroke interface U3
It is connected with the end PF3 of control chip U1, the end KEY_5 of keystroke interface U3 is connected with the end PF4 of control chip U1, keystroke interface U3
The end KEY_6 be connected with the end PF5 of control chip U1, the end KEY_7 of keystroke interface U3 is connected with the end PF6 for controlling chip U1,
The end KEY_8 of keystroke interface U3 is connected with the end PF7 of control chip U1, and the end KEY_9 of keystroke interface U3 is with control chip U1's
The end PF8 is connected, and the end KEY_10 of keystroke interface U3 is connected with the end PF9 of control chip U1；
The end CS of LCD interface U12 is connected with the end PG12 of control chip U1, and the end WR of LCD interface U12 is with control chip U1's
The end PD5 is connected, and the end RST of LCD interface U12 is connected with the end RESET of control chip U1, the end DB1 of LCD interface U12 and control
The end PD15 of chip U1 is connected, and the end DB3 of LCD interface U12 is connected with the end PD1 of control chip U1, the end DB5 of LCD interface U12
It is connected with the end PE8 of control chip U1, the end DB7 of LCD interface U12 is connected with the end PE10 of control chip U1, LCD interface U12
The end DB9 be connected with the end PE12 of control chip U1, the end DB11 of LCD interface U12 is connected with the end PE14 for controlling chip U1,
The end DB13 of LCD interface U12 is connected with the end PD8 of control chip U1, and the end DB15 of LCD interface U12 is with control chip U1's
The end PD10 is connected, and the end BL of LCD interface U12 is connected with the end PB15 of control chip U1, the end MISO of LCD interface U12 and control
The end PB2 of chip U1 is connected, and the end T_PEN of LCD interface U12 is connected with the end PB1 of control chip U1, the T_CS of LCD interface U12
It holds and is connected with the end PC13 of control chip U1, the end RS of LCD interface U12 is connected with the end PF12 of control chip U1, LCD interface
The end RD of U12 is connected with the end PD4 of control chip U1, and the end DB0 of LCD interface U12 is connected with the end PD14 of control chip U1,
The end DB2 of LCD interface U12 is connected with the end PD0 of control chip U1, the end DB4 of LCD interface U12 and the end PE7 of control chip U1
It is connected, the end DB6 of LCD interface U12 is connected with the end PE9 of control chip U1, and the end DB8 of LCD interface U12 is with control chip U1's
The end PE11 is connected, and the end DB10 of LCD interface U12 is connected with the end PE13 of control chip U1, the end DB12 of LCD interface U12 and control
The end PE15 of coremaking piece U1 is connected, and the end DB14 of LCD interface U12 is connected with the end PD9 of control chip U1；LCD interface U12's
The end GND is grounded after being connected with one end of capacitor C13, the other end of capacitor C13 respectively with the vdd terminal of LCD interface U12,3.3V
VCC power end is connected, and the end GND of LCD interface U12 is grounded after being connected with one end of capacitor C14, the other end difference of capacitor C14
It is connected with the VCC power end of the vdd terminal of LCD interface U12,5V, the end MOSI of LCD interface U12 and the end PF11 of control chip U1
It is connected, the end CLK of LCD interface U12 is connected with the end PB0 of control chip U1.
5. a kind of distribution automation coded communication tester according to claim 2, it is characterised in that: on the circuit board
It is provided with power circuit and battery charger, the power circuit includes voltage-stablizer U6, voltage stabilizing chip U7 and voltage stabilizing chip U8,
The battery charger includes power supply chip U11；
The end VIN of the power supply chip U11 is connected with one end of the anode of battery H2, capacitor C1 respectively, power supply chip U11's
The end PWPD respectively with the cathode of battery H2, the other end of capacitor C1, the end GND of power supply chip U11, the anode of diode D1, electricity
One end of one end, capacitor C3 for hindering R7 is grounded after being connected, the line between the other end of resistance R7 and one end of resistance R6 and electricity
The end BOOT at the end VSNS of source chip U11, power supply chip U11 is connected by capacitor C2 with the end PH of power supply chip U11, power supply core
The end PH of piece U11 is also connected with one end of the cathode of diode D1, inductance L5, and the other end of inductance L5 is another with resistance R6 respectively
One end, the other end of capacitor C3, one end of resistance R8, diode D2 anode be connected, the cathode of diode D2 respectively with resistance
The drain electrode of one end of R9, field-effect tube Q1 is connected, the other end of resistance R9 respectively with one end of resistance R10, control chip U1
The end PC3 is connected, the other end of resistance R10 ground connection, the source electrode of field-effect tube Q1 respectively with one end of resistance R11, charge switch
Anode is connected, and the line between the other end and one end of resistance R12 of resistance R11 is connected with the end PC4 of control chip U1, resistance
The other end of R12 is grounded, and the grid of field-effect tube Q1 is connected with the collector of the other end of resistance R8, photo-coupler Q2 respectively,
The anode of the emitter of photo-coupler Q2, minus earth, photo-coupler Q2 passes through resistance R13 and the end the PD13 phase for controlling chip U1
Even；
The end IN of voltage stabilizing chip U7 respectively with one end of capacitor C6, one end of capacitor C5, one end of resistance R14, diode D4
Cathode, the cathode of diode D3 are connected, and the anode of diode D3 passes sequentially through the positive pole phase of resistance R13, switch and 16.8V
Even, the power cathode of 16.8V respectively with the anode of diode D4, the cathode of light emitting diode D5, diode D10 anode, hair
The cathode of optical diode D11 is connected, and the anode of light emitting diode D5 is connected with the other end of resistance R14, the other end of capacitor C5
With the other end of capacitor C6, the end ON of voltage stabilizing chip U7, the end GND of voltage stabilizing chip U7, the anode of diode D6, capacitor C7 one
End, one end of capacitor C8, the anode of diode D7, light emitting diode D8 cathode be connected after be grounded, the cathode of diode D6 point
It is not connected with one end of the OUT terminal of voltage stabilizing chip U7, inductance L1, the other end of the inductance L1 BACK with voltage stabilizing chip U7 respectively
End, the other end of capacitor C7, the other end of capacitor C8, resistance R15 one end be connected, the other end of resistance R15 respectively with two poles
The cathode of pipe D7, one end of resistance R16, the VCC power end of 5V are connected, and the other end and light emitting diode D8 of resistance R16 is just
Extremely it is connected；
Line between resistance R13 and switches is connected by resistance R17 with the anode of diode D9, the cathode of diode D9
Respectively with the cathode of diode D10, one end of resistance R18, one end of capacitor C9, one end of capacitor C10, voltage stabilizing chip U8 IN
End is connected, and the other end of resistance R18 is connected with the anode of light emitting diode D11, and the other end of capacitor C9 is another with capacitor C10's
End, the end ON of voltage stabilizing chip U8, the end GND of voltage stabilizing chip U8, the anode of diode D12, one end of capacitor C11, capacitor C12
One end, the anode of diode D13, light emitting diode D14 cathode be connected after be grounded, the cathode of diode D12 respectively with pressure stabilizing
The OUT terminal of chip U8, inductance L2 one end be connected, the other end of inductance L2 respectively with the end BACK of voltage stabilizing chip U8, capacitor C11
The other end, the other end of capacitor C12, resistance R19 one end be connected, the other end of resistance R19 is negative with diode D13 respectively
Pole, one end of resistance R20, the VCC power end of 12V are connected, and the other end of resistance R20 is connected with the anode of light emitting diode D14；
The end IN of voltage-stablizer U6 is connected with the VCC power end of one end of capacitor C32, one end of capacitor C33,5V respectively, voltage-stablizer
The end GND of U6 respectively with the other end of capacitor C32, the other end of capacitor C33, one end of capacitor C31, one end of capacitor C30, two
The anode of pole pipe D30, the cathode of light emitting diode D31 are grounded after being connected, and the OUT terminal of voltage-stablizer U6 is another with capacitor C31 respectively
One end, capacitor C30 the other end be connected, after the OUT terminal of voltage-stablizer U6 concatenation fuse R29 respectively with the cathode of diode D30,
One end of resistance R30, the VCC power end of 3.3V are connected, and the other end of resistance R30 is connected with light emitting diode D31 anode.
6. a kind of distribution automation coded communication tester according to claim 2, it is characterised in that: the control chip
The model SP3485 of the model STM32F407ZET6 of U1, transceiving chip U9.
7. a kind of distribution automation coded communication tester according to claim 3, it is characterised in that: the network interface chip
The model W5500 of U4, network interface chip U5.
8. a kind of distribution automation coded communication tester according to claim 5, it is characterised in that: the voltage-stablizer U6
Model AMS1117-3.3, the model LM2596-12 of the model LM2596-5 of voltage stabilizing chip U7, voltage stabilizing chip U8,
The model TPS5430 of power supply chip U11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820994839.5U CN208353362U (en) | 2018-06-27 | 2018-06-27 | A kind of distribution automation coded communication tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820994839.5U CN208353362U (en) | 2018-06-27 | 2018-06-27 | A kind of distribution automation coded communication tester |
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| CN208353362U true CN208353362U (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493247A (en) * | 2019-08-29 | 2019-11-22 | 南方电网科学研究院有限责任公司 | A kind of distribution terminal communication check method, system, equipment and computer media |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493247A (en) * | 2019-08-29 | 2019-11-22 | 南方电网科学研究院有限责任公司 | A kind of distribution terminal communication check method, system, equipment and computer media |
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