CN206353790U - The serial message interface time service modules of RS 232 of high density output - Google Patents
The serial message interface time service modules of RS 232 of high density output Download PDFInfo
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- CN206353790U CN206353790U CN201621480074.0U CN201621480074U CN206353790U CN 206353790 U CN206353790 U CN 206353790U CN 201621480074 U CN201621480074 U CN 201621480074U CN 206353790 U CN206353790 U CN 206353790U
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Abstract
The utility model discloses the serial message interface time service modules of RS 232 of the high density output of high density output, including microprocessor, drive module, optical coupling module, the modules of RS 232, electrostatic protection module, insulating power supply module, first signal input part, secondary signal input and signal output part, first signal input part connects the input of microprocessor, the output end of microprocessor and the input of drive module are connected, the output end of drive module and the first input end of optical coupling module are connected, the output end of optical coupling module is connected with the first input end of the modules of RS 232, the output end connection electrostatic protection module of the modules of RS 232 is simultaneously connected with signal output part, insulating power supply module exports the first insulating power supply to optical coupling module, the second insulating power supply is exported to the modules of RS 232.The utility model structure is excellent, and cost is low, it is possible to achieve time service while multichannel 232 serial messages of RS, and the degree of accuracy is high, can be widely applied in time service field.
Description
Technical field
The utility model is related to the RS-232 strings in the time service field of electric power or the communications industry, more particularly to high density output
Row message interface time service module.
Background technology
Explanation of nouns：
RS-232 interface：Meet certain level demand（Logic 1:- 3V ~ -15V, logical zero: 3V~15V）Signaling interface；
Baud rate：The speed of single-chip microcomputer or computer in serial communication；
Serial message：The data sent in sequence；
Time service module：It is capable of the module of outputting standard time signal；
Most widely used time synchronized is the computer on INTERNET.Computer clock be used for record event when
Between information, such as E-MAIL information, document creation and access time, database processing time.Clock is also used for control backup
Operation, for the automatic construction compiler of design check whether file changed and other application.If computer clock is not smart
Really, then much will be unable to normal work in these applications.To the computer system of time-sensitive, such as financial industry server,
EDI, large-scale distributed business database, space flight and aviation control computer etc., with greater need for high-precision temporal information.Communications and transportation
The time display system of industry, such as subway timetable show that system, airport timetable show system, may if deviation is larger
Influence the travelling of passenger.Nowadays, increasing communication and power equipment be required for high-precision temporal information carry out time service with
Normal work is maintained, and the serial message interface time service modules of major part RS-232 only export time signal all the way at present, work as needs
, it is necessary to which using the serial message interface time service modules of multiple RS-232, cost is higher during multichannel time signal, and each road time service is believed
Delay is there may be between number, poor consistency causes time service result undesirable.
Utility model content
In order to solve above-mentioned technical problem, the RS-232 that the purpose of this utility model is to provide high density output is serially reported
Literary interface time service module.
The utility model solves the technical scheme that its technical problem used：
The serial message interface time service modules of RS-232 of high density output, including microprocessor, drive module, optocoupler mould
Block, RS-232 modules, electrostatic protection module, insulating power supply module, the first signal input part for accessing original serial message,
For accessing the secondary signal input of DC supply and signal output for the serial messages of output multi-channel RS-232
End, first signal input part connects the input of microprocessor, the output end of the microprocessor and drive module it is defeated
Enter end connection, the output end of the drive module and the first input end of optical coupling module are connected, the output end of the optical coupling module
It is connected with the first input end of RS-232 modules, the output end connection electrostatic protection module of the RS-232 modules is simultaneously defeated with signal
Go out end connection, the secondary signal input connects the input of insulating power supply module, and the first of the insulating power supply module is defeated
Go out the second input that end the first insulating power supply of output arrives optical coupling module, the second output end of the insulating power supply module exports the
Second input of two insulating power supplies to RS-232 modules.
Further, the drive module is constituted using four bus transceivers, the input pin of four bus transceivers
It is connected with the output end of microprocessor, the output end of the drive module includes 20 output ports, and each output port is
One output pin of bus transceiver.
Further, the optical coupling module includes 20 light-coupled isolation loops, the light-coupled isolation loop include photo-coupler,
The second of protective resistance and pull-up resistor, a termination DC supply of the protective resistance, the other end and photo-coupler is drawn
Pin is connected, and the 3rd pin of the photo-coupler connects an output port of drive module, the 8th pin of the photo-coupler
It is connected with the first insulating power supply, the 6th pin of the photo-coupler is connected by pull-up resistor with the first insulating power supply, and the
Six pins are connected as the output port in the light-coupled isolation loop with the first input end of RS-232 modules, the photo-coupler
The 5th pin and the first insulating power supply altogether.
Further, the RS-232 modules are constituted using 10 RS-232 chips.
Further, the electrostatic protection module is constituted using Transient Suppression Diode.
The beneficial effects of the utility model are：The serial message interface time services of RS-232 of high density output of the present utility model
Module, including microprocessor, drive module, optical coupling module, RS-232 modules, electrostatic protection module, insulating power supply module, be used for
Access the first signal input part of original serial message, the secondary signal input for accessing DC supply and be used for
The signal output part of the serial messages of output multi-channel RS-232, the first signal input part connects the input of microprocessor, described micro-
The output end of processor and the input of drive module are connected, and the output end of drive module and the first input end of optical coupling module connect
Connect, the output end of optical coupling module is connected with the first input end of RS-232 modules, the output end connection electrostatic of RS-232 modules is protected
Shield module is simultaneously connected with signal output part, and secondary signal input connects the input of insulating power supply module, insulating power supply module
The first output end export the first insulating power supply to the second input of optical coupling module, the second output end of insulating power supply module is defeated
Go out the second insulating power supply to the second input of RS-232 modules.The utility model structure is excellent, reduces production application cost,
There is unified time synchronized between time service while multichannel RS-232 serial messages can be realized, each serial messages of road RS-232
Property, the degree of accuracy is high.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the electronic block diagrams of the serial message interface time service modules of RS-232 of high density output of the present utility model；
Fig. 2 is the original of the drive module of the serial message interface time service modules of RS-232 of high density output of the present utility model
Reason figure；
Fig. 3 is the original of the optical coupling module of the serial message interface time service modules of RS-232 of high density output of the present utility model
Reason figure；
Fig. 4 is the RS-232 modules of the serial message interface time service modules of RS-232 of high density output of the present utility model
Schematic diagram；
Fig. 5 is the electrostatic protection module of the serial message interface time service modules of RS-232 of high density output of the present utility model
Schematic diagram；
Fig. 6 is the original of the microprocessor of the serial message interface time service modules of RS-232 of high density output of the present utility model
Reason figure；
Fig. 7 is the original of the toggle switch of the serial message interface time service modules of RS-232 of high density output of the present utility model
Reason figure.
Embodiment
Reference picture 1, the utility model provides the serial message interface time service modules of RS-232 that a kind of high density is exported, bag
Include microprocessor, drive module, optical coupling module, RS-232 modules, electrostatic protection module, insulating power supply module, for accessing original
Begin the first signal input part IN1 of serial message, the secondary signal input IN2 for accessing DC supply and to be used for
The signal output part of the serial messages of output multi-channel RS-232, the input of the first signal input part IN1 connection microprocessors,
The input of the output end of the microprocessor and drive module is connected, and the of the output end of the drive module and optical coupling module
One input is connected, and the output end of the optical coupling module is connected with the first input end of RS-232 modules, the RS-232 modules
Output end connection electrostatic protection module and be connected with signal output part, the secondary signal input IN2 connection insulating power supplies
The input of module, the first output end of the insulating power supply module exports the first insulating power supply to the second input of optical coupling module
End, the second output end of the insulating power supply module exports the second insulating power supply to the second input of RS-232 modules.
It is further used as preferred embodiment, the microprocessor is also associated with toggle switch.
It is further used as preferred embodiment, the drive module is using four bus transceiver structures as shown in Figure 2
Into the input pin of four bus transceivers and the output end of microprocessor are connected, and the output end of the drive module includes
20 output ports, and each output port is an output pin of bus transceiver.
It is further used as preferred embodiment, the optical coupling module includes 20 light-coupled isolation loops, the institute of reference picture 3
Show, the light-coupled isolation loop includes photo-coupler, protective resistance and pull-up resistor, a termination direct current work of the protective resistance
Make power supply, the second pin connection of the other end and photo-coupler, the one of the 3rd pin connection drive module of the photo-coupler
Output port, the 8th pin of the photo-coupler is connected with the first insulating power supply, and the 6th pin of the photo-coupler passes through
Pull-up resistor is connected with the first insulating power supply, and the 6th pin is used as the output port and RS-232 moulds in the light-coupled isolation loop
The first input end connection of block, the 5th pin of the photo-coupler and the first insulating power supply are altogether.
It is further used as preferred embodiment, the RS-232 modules are using 10 RS-232 chips as shown in Figure 4
Constitute.
It is further used as preferred embodiment, the electrostatic protection module is suppressed using multiple transient states as shown in Figure 5
Diode is constituted.
Below in conjunction with specific embodiment, the utility model is described in further detail.
Reference picture 1, the utility model provides the serial message interface time service modules of RS-232 that a kind of high density is exported, bag
Include microprocessor, drive module, optical coupling module, RS-232 modules, electrostatic protection module, insulating power supply module, for accessing original
Begin the first signal input part IN1 of serial message, the secondary signal input IN2 for accessing DC supply and to be used for
The signal output part of the serial messages of output multi-channel RS-232, the input of the first signal input part IN1 connection microprocessors, micro- place
The input of the output end and drive module of managing device is connected, and the output end of drive module and the first input end of optical coupling module connect
Connect, the output end of optical coupling module is connected with the first input end of RS-232 modules, the output end connection electrostatic of RS-232 modules is protected
Shield module is simultaneously connected, the input of secondary signal input IN2 connection insulating power supply modules, insulating power supply mould with signal output part
First output end of block exports the first insulating power supply to the second input of optical coupling module, the second output end of insulating power supply module
The second insulating power supply is exported to the second input of RS-232 modules.In Fig. 1, original serial message and DC supply are by one
Individual time signal source is provided.DC supply is 5V DC voltage.
Drive module is constituted using four bus transceivers as shown in Figure 2, the input pin of four bus transceivers
It is connected with the output end of microprocessor, the output end of drive module includes 20 output ports, and each output port is using total
One output pin of line transceiver.In Fig. 2, CPU_TXD3 represents the serial message signals of microprocessor forwarding, bus transceiver
U1 wherein 5 output pins as output port, U1 output signals OUT_TIME1 in Fig. 2, OUT_TIME2, OUT_TIME3,
OUT_TIME4 and OUT_TIME20, similar, 3 bus transceivers all select wherein 5 output pins as output end in addition
Mouthful output signal OUT_TIME5 ~ output signal OUT_TIME19, be finally constituted drive module has the defeated of 20 output ports
Go out end.It is preferred that, drive module is constituted using model SN74ABT245PW bus transceiver, and it can improve the original of input
Begin the driving force of serial message, and the signal of output has stronger carrying load ability.
In the present embodiment, optical coupling module includes 20 light-coupled isolation loops, and shown in reference picture 3, light-coupled isolation loop includes
Photo-coupler U2, protective resistance R1 and pull-up resistor R2, a protective resistance R1 termination 5V DC supplies, the other end and light
The second pin connection of coupler, photo-coupler U2 the 3rd pin connects an output port of drive module, photo-coupler U2
The 8th pin be connected with the first insulating power supply, photo-coupler U2 the 6th pin passes through pull-up resistor R2 and the first insulating power supply
Connect, and the 6th pin is connected as the output port in light-coupled isolation loop with the first input end of RS-232 modules, optical coupling
Device U2 the 5th pin and the first insulating power supply are altogether.In Fig. 3, G_GND represents the ground of the first insulating power supply, and G_VCC represents
One insulating power supply, for providing voltage.In Fig. 3, the time signal OUT_TIME1 exported from an output port of drive module is defeated
Go out to after photo-coupler U2, be optically coupled device U2 and carry out electrical isolation, then export the time signal TXD1 after electrical isolation and arrive
RS-232 modules.Photo-coupler U2 is preferred to use model 6N137 high speed photo coupling chip, and switching rate is up to 10Mbps, prolonged
When it is small, it is ensured that this RS-232 interface time service module have higher time accuracy.
In the present embodiment, RS-232 modules are constituted using 10 RS-232 chips as shown in Figure 4.RS-232 modules it is defeated
Enter end and have 20 input ports, output end also there are 20 output ports.It is preferred that, the present embodiment uses model
MAX3232EEAE RS-232 chips, two input pins of RS-232 chips as RS-232 modules 2 input ports,
Two output pins of RS-232 chips are as 2 output ports of RS-232 modules, and the loop that 10 RS-232 chips are constituted is realized
20 input ports of RS-232 modules and the configuration of output port.Corresponding, signal output part also has 20 ports, often
Individual port is connected with an output port of RS-232 modules.In Fig. 4, the time signal TXD7 and TXD8 of input are entered into line level and turned
After changing, the 232_TIME4 and 232_TIME14 in the serial messages of RS-232, i.e. Fig. 4 are converted to.
In the present embodiment, electrostatic protection module is constituted using multiple Transient Suppression Diodes as shown in Figure 5, for protecting
The serial messages of RS-232 of RS-232 modules output are not by electrostatic interference and destruction.For every serial messages of RS-232 all the way, if
Put a Transient Suppression Diode and electrostatic protection is carried out to it, therefore, the present embodiment needs 20 Transient Suppression Diodes to enter altogether
Row electrostatic protection.Preceding ten roads RS-232 serial message 232_TIME1 ~ 232_TIME10 protection circuits are given in Fig. 5.It is excellent
Choosing, in the present embodiment, Transient Suppression Diode is preferred to use model SMBJ18.0CA diode.
Microprocessor is also associated with toggle switch.Microprocessor is used to forward the original serial message of input, turns
During hair can based on prior art adjust original serial message baud rate, be adjustable as 1200bps, 2400bps, 4800bps,
9600bps or 19200bps.Microprocessor is based on existing data processing level, can after the digital coding for recognizing toggle switch
It is for digitally coded different value, RS-232 is serial to set the baud rate of the serial messages of RS-232 according to digital coding
The baud rate of message is adjusted to 1200bps, 2400bps, 4800bps, 9600bps or 19200bps.The microprocessor of the present embodiment
Device is preferred to use model STM32F101C8T6 chip, and it is as shown in Figure 6 that it connects circuit.Toggle switch uses S2 DIP-5
Switch, its detailed circuit is as shown in fig. 7, in Fig. 7, microprocessor in PA4, PA5, PA6, PA7 and PA8 difference connection figure 6
Corresponding pin.
The serial message on 1 tunnel of the drive module for microprocessor to be forwarded, which is converted to 20 tunnels, has the time of function of the same race
Optical coupling module is output to after signal, and driving force of the raising per road signal.Optical coupling module is used for per time signal all the way
Electrical isolation output is carried out, the time signal with function of the same race is produced to RS-232 modules, RS-232 modules are to optical coupling module
Every time signal all the way of output carries out level conversion, is converted to the serial messages of RS-232, while improving the driving force of signal
After be output to signal output part.Electrostatic protection module be used for protect RS-232 modules export the 20 serial messages of road RS-232 not by
Electrostatic interference and destruction.
After this time service module by original serial message through microprocessor by receiving, forwarding and adjust baud rate, it will forward
Serial message driving module be converted into 20 tunnels there is the time signal of function of the same race, then the tunnel time signals of Jiang Gai 20 pass through light
Coupling module, which is produced, has identical function, the time signal of electrical isolation, then the time signal that optical coupling module is exported is passed through into RS-
The 20 serial messages of road RS-232 are converted to after 232 module raises signal driving forces, then are protected via electrostatic protection module
Shield, the serial messages of RS-232 after electrostatic protection are externally exported the 20 serial messages of road RS-232 by signal output part and awarded
When.This time service module structure is excellent, can be integrated in W482.6mm X D291.0mm X H132.75mm time synchronism equipment
On, and with unified between the 20 serial messages of road RS-232 exported with 20 tunnel high density output ports, each output port
Synchronousness, it is possible to achieve time service while preferable multiple signals, reduce production application cost.In equal volume
Collecting cost time service module on time synchronism equipment can realize that a time synchronism equipment meets more demands by time service equipment, pole
The earth lifts the market competitiveness of time synchronism equipment.
Above is preferable implementation of the present utility model is illustrated, but the invention is not limited to implement
Example, those skilled in the art can also be made on the premise of without prejudice to the utility model spirit a variety of equivalent variations or
Replace, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (5)
1. the serial message interface time service modules of RS-232 of high density output, it is characterised in that including microprocessor, driving mould
Block, optical coupling module, RS-232 modules, electrostatic protection module, insulating power supply module, the first letter for accessing original serial message
Number input, the secondary signal input for accessing DC supply and for the serial messages of output multi-channel RS-232
Signal output part, first signal input part connects the input of microprocessor, the output end of the microprocessor and driving
The input connection of module, the output end of the drive module and the first input end of optical coupling module are connected, the optical coupling module
Output end be connected with the first input end of RS-232 modules, the output ends of RS-232 modules connection electrostatic protection module is simultaneously
It is connected with signal output part, the secondary signal input connects the input of insulating power supply module, the insulating power supply module
The first output end export the first insulating power supply arrive optical coupling module the second input, the insulating power supply module second export
Second input of end the second insulating power supply of output to RS-232 modules.
2. the serial message interface time service modules of RS-232 of high density output according to claim 1, it is characterised in that institute
State drive module to constitute using four bus transceivers, the input pin of four bus transceivers and the output end of microprocessor
Connection, the output end of the drive module includes 20 output ports, and each output port is an output of bus transceiver
Pin.
3. the serial message interface time service modules of RS-232 of high density output according to claim 2, it is characterised in that institute
Stating optical coupling module includes 20 light-coupled isolation loops, and the light-coupled isolation loop includes photo-coupler, protective resistance and pull-up electricity
The second pin of resistance, a termination DC supply of the protective resistance, the other end and photo-coupler is connected, the optical coupling
3rd pin of device connects an output port of drive module, and the 8th pin of the photo-coupler and the first insulating power supply connect
Connect, the 6th pin of the photo-coupler is connected by pull-up resistor with the first insulating power supply, and the 6th pin is used as the light
The output port of coupling isolated loop is connected with the first input end of RS-232 modules, the 5th pin of the photo-coupler and first
Insulating power supply is altogether.
4. the serial message interface time service modules of RS-232 of high density output according to claim 3, it is characterised in that institute
RS-232 modules are stated to constitute using 10 RS-232 chips.
5. the serial message interface time service modules of RS-232 of high density output according to claim 3, it is characterised in that institute
Electrostatic protection module is stated to constitute using Transient Suppression Diode.
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| CN201621480074.0U CN206353790U (en) | 2016-12-30 | 2016-12-30 | The serial message interface time service modules of RS 232 of high density output |
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| CN201621480074.0U CN206353790U (en) | 2016-12-30 | 2016-12-30 | The serial message interface time service modules of RS 232 of high density output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361581A (en) * | 2018-09-11 | 2019-02-19 | 南京南瑞继保电气有限公司 | A kind of one master and multiple slaves formula high-speed serial communication system and the means of communication |
-
2016
- 2016-12-30 CN CN201621480074.0U patent/CN206353790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361581A (en) * | 2018-09-11 | 2019-02-19 | 南京南瑞继保电气有限公司 | A kind of one master and multiple slaves formula high-speed serial communication system and the means of communication |
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