CN109726160A - A kind of monobus communication signal repeat circuit with monitoring function - Google Patents
A kind of monobus communication signal repeat circuit with monitoring function Download PDFInfo
- Publication number
- CN109726160A CN109726160A CN201811563998.0A CN201811563998A CN109726160A CN 109726160 A CN109726160 A CN 109726160A CN 201811563998 A CN201811563998 A CN 201811563998A CN 109726160 A CN109726160 A CN 109726160A
- Authority
- CN
- China
- Prior art keywords
- connect
- comparator
- input terminal
- monitoring
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention discloses a kind of monobus communication signal repeat circuit with monitoring function, the first signal shaping unit, and input terminal is connect with host interface port, and the output end of the first signal shaping unit is connect with slave interface end；Second signal shaping unit, input terminal are connect with slave interface end, and the output end of the second signal shaping unit is connect with host interface port；First monitoring unit, control terminal are connect with host interface port, for monitoring the transmission electric signal of the host interface port；Second monitoring unit, control terminal are connect with slave interface end, for monitoring the transmission electric signal of the slave interface end.The present invention solves signal source strength deficiency in monobus communication process and is not easy the technical issues of monitoring.
Description
Technical field
The present invention relates to communication technique fields, and in particular to relay in a kind of monobus communication signal with monitoring function
Road.
Background technique
The universal serial bus carried out data transmission between currently used microcomputer and peripheral hardware mainly have I2C bus, spi bus and
SCI bus.Wherein I2C bus is communicated (clock lines, a data line) in a manner of 2 line of synchronous serial, and spi bus is then
It is communicated in a manner of 3 line of synchronous serial (clock lines, a data input line, a data output line), and SCI bus
It is to be communicated (a data input line, a data output line) in an asynchronous manner.These buses at least need two or
Two or more signal wires.In recent years, it is proposed distinctive monobus (1-Wire Bus) technology.The technology and above-mentioned total
Line is different, it uses single signal wire, can not only transmit clock, but also can transmit data, and data transmission is two-way, thus this
The advantages that kind Single Wire Bus Technology has route simple, and hardware spending is few, low in cost, convenient for bus extension and safeguards.
Monobus is suitable for single host system, can control one or more slave devices.Host can be microcontroller,
Slave can be single wire bus device, and the data exchange between them only passes through a signal line.When only one slave devices,
System can be operated by single node system；When there is a plurality of slave devices, system then presses multi-node system operation.
But current this monobus communication modes are insufficient there are relay capabilities and host side and the signal from generator terminal can interfere
Monitoring signals, so that can not effectively be monitored to signals transmission.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
The object of the present invention is to provide a kind of monobus communication signal repeat circuit with monitoring function, host and from
It is provided with the signal monitoring unit of Phototube Coupling on the communication line of machine, signals transmission is monitored, by host
It holds and signal shaping unit is respectively set from generator terminal, improve the relay capabilities of signal transmission, solve in monobus communication process
Signal source strength is insufficient and is not easy the technical issues of monitoring.
In order to realize these purposes according to the present invention and other advantages, a kind of monobus with monitoring function is provided
Communication signal repeat circuit, comprising:
First signal shaping unit, input terminal are connect with host interface port, the output end of the first signal shaping unit with
The connection of slave interface end；
Second signal shaping unit, input terminal are connect with slave interface end, the output end of the second signal shaping unit with
Host interface port connection；
First monitoring unit, control terminal are connect with host interface port, for monitoring the transmission electric signal of the host interface port；
Second monitoring unit, control terminal are connect with slave interface end, for monitoring the transmission electric signal of the slave interface end.
Preferably, the host interface port is provided with the first comparing unit, and first comparing unit includes:
First diode, cathode are connect with the host interface port, and the host interface port is also connected with one first pull-up resistor；
First comparator, non-inverting input terminal are connect with the first diode anode；
First resistor, first end are connect with power end, the same phase of the second end of the first resistor and the first comparator
Input terminal connection.
Preferably, the first signal shaping unit includes:
Second comparator, non-inverting input terminal are connect with the output end of the first comparator, the output of second comparator
End is connect with the slave interface end；
Second resistance, first end are connect with power end, the same phase of the second end of the second resistance and second comparator
Input terminal connection；
First bleeder circuit comprising concatenated 3rd resistor and the 4th resistance, the input terminal and electricity of first bleeder circuit
Source connection, the output end of first bleeder circuit are connect with the inverting input terminal of second comparator.
It preferably, further include that the first reference signal generates unit, first reference signal generates unit and includes:
First buffer, input terminal are connect with the output end of the first comparator；
Second bleeder circuit comprising the 5th resistance being arranged in series and the 6th resistance, the input terminal of second bleeder circuit
It is connect with the output end of first buffer.
Preferably, the slave interface end is provided with the second comparing unit, and second comparing unit includes:
Second diode, cathode are connect with the slave interface end, and the slave interface end is also connected with one second pull-up resistor；
Third comparator, non-inverting input terminal are connect with second diode anode, the anti-phase input of the third comparator
Meet the output end connection of the second bleeder circuit in end；
7th resistance, first end are connect with power end, the second end and the same phase of the third comparator of the 7th resistance
Input terminal connection.
Preferably, the second signal shaping unit includes:
4th comparator, non-inverting input terminal are connect with the output end of the third comparator, the output of the 4th comparator
End is connect with the host interface port；
8th resistance, first end are connect with power end, the second end and the same phase of the 4th comparator of the 8th resistance
Input terminal connection；
Third bleeder circuit comprising concatenated 9th resistance and the tenth resistance, the input terminal and electricity of the third bleeder circuit
Source connection, the output end of the third bleeder circuit are connect with the inverting input terminal of the 4th comparator.
It preferably, further include that the second reference signal generates unit, second reference signal generates unit and includes:
Second buffer, input terminal are connect with the output end of the third comparator；
4th bleeder circuit comprising the eleventh resistor and twelfth resistor being arranged in series, the 4th bleeder circuit it is defeated
Enter end to connect with the output end of second buffer, the output end of the 4th bleeder circuit is anti-with the first comparator
The connection of phase input terminal.
Preferably, first monitoring unit includes one first optocoupler, the cathode of light emitting diode in first optocoupler
The output end of first buffer is connected, the anode of light emitting diode connects electricity by thirteenth resistor in first optocoupler
Source；
The emitter of triode connects the ground wire of monitoring side in first optocoupler, and the collector of triode is logical in first optocoupler
It crosses the 15th resistance and connects monitoring power supply, the collector of triode is connected to the first monitoring side in first optocoupler.
Preferably, second monitoring unit includes one second optocoupler, the cathode of light emitting diode in second optocoupler
The output end of second buffer is connected, the anode of light emitting diode passes through the 14th resistance connection electricity in first optocoupler
Source；
The emitter of triode connects the ground wire of monitoring side in second optocoupler, and the collector of triode is logical in second optocoupler
It crosses the 16th resistance and connects monitoring power supply, the collector of triode is connected to the second monitoring side in second optocoupler.
Compared with prior art, the beneficial effect that the present invention includes is:
1, the present invention is provided with monitoring unit in host side and signal transmssion line from generator terminal, is monitored to data transmission,
And signal transmitting and receiving end is fed back to, preferably to carry out feedback control；
2, two signal monitoring units carry out signal isolation, eliminate master-slave interface end electric signal to the interference on monitoring side, mention
Accuracy and reliability of the height to signal monitoring；
3, by the way that signal shaping unit is respectively set in host side and from generator terminal, send signal is enhanced the present invention by signal shaping
After carry out long distance transmission, increase signal long-distance transmittability；
4, signal transmission error rates are reduced, the reliability of monobus signal transmission is improved；
5, the variation benchmark that unit is generated by reference signal, improves signal in the stability of transmission process.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to comment
It can implement accordingly.
As shown in Figure 1, the present invention provides a kind of monobus communication signal repeat circuit with monitoring function, including master
Machine transmission circuit and slave transmission circuit, host transmission circuit include the first pull-up resistor Rup1, the first comparing unit, the first letter
Number shaping unit and the first reference signal generate unit.Slave transmission circuit includes the relatively list of the second pull-up resistor Rup2, second
Member, second signal shaping unit and the second reference signal generate unit.
First pull-up resistor Rup1 is connect with host interface port SBUS1, under normal condition, passes through the first pull-up resistor Rup1
The voltage of host interface port SBUS1 is maintained at high level.
First comparing unit is connected between host interface port SBUS1 and the first signal shaping unit, specifically, described
One comparing unit includes: first diode D1, first comparator OP1 and first resistor R1, the cathode of first diode D1 and institute
Host interface port SBUS1 connection is stated, the non-inverting input terminal of first comparator OP1 is connect with the first diode D1 anode, is led to
Crossing first diode D1 avoids the reception signal of host from generating interference to the first comparing unit.The first comparator OP1's is anti-
Phase input terminal is connect with the output end that second reference signal generates unit.The first end and power end Vcc of first resistor R1
Connection, the second end of the first resistor R1 are connect with the non-inverting input terminal of the first comparator OP1, under normal condition, are
The non-inverting input terminal of first comparator OP1 provides high level signal.
In the present embodiment, the voltage of each power end Vcc is 5V, and the resistance value of each resistance can be equal.
The input terminal of first signal shaping unit is connect with the first comparing unit output end, specifically, described first
Signal shaping unit includes: the second comparator OP2, second resistance R2 and the first bleeder circuit.Second comparator OP2's is same mutually defeated
Enter end to connect with the output end of the first comparator OP1, the output end of the second comparator OP2 and the slave interface end
The input signal of SBUS2 connection, host is sent to slave interface end SBUS2 by the output end of the second comparator OP2.
The first end of second resistance R2 is connect with power end Vcc, and the second end of the second resistance R2 and described second compares
Non-inverting input terminal compared with device OP2 connects, and under normal condition, the non-inverting input terminal of the second comparator OP2 is maintained at high level shape
State.
First bleeder circuit includes concatenated 3rd resistor R3 and the 4th resistance R4, the input terminal of first bleeder circuit
It being connect with power end Vcc, the output end of first bleeder circuit is connect with the inverting input terminal of the second comparator OP2,
Using the voltage on the 4th resistance R4 as the input voltage of the second comparator OP2 inverting input terminal.
First signal shaping unit carries out shaping, the output of first comparator OP1 to the output signal of first comparator OP1
Signal exports after passing through the first signal shaping unit shaping, and is sent to slave interface end SBUS2.Signal drives after shaping
Kinetic force is stronger, is equivalent to and has carried out relaying reinforcement processing to signal, increases the anti-interference ability of signal, and transmission range is more
It is long, and improve the accuracy transmitted at a distance.
The input terminal that first reference signal generates unit is connect with the first comparing unit output end；Specifically, described
It includes: the first buffer U1 and the second bleeder circuit that first reference signal, which generates unit,.First buffer U1 input terminal with it is described
The output end of first comparator OP1 connects；Second bleeder circuit includes the 5th resistance R5 and the 6th resistance R6 being arranged in series, the
The first end of five resistance R5 is connect with the output end of the first buffer U1, the second end ground connection of the 6th resistance R6.
Slave transmission circuit is consistent with host transmission circuit structure, and slave transmission circuit and host transmission circuit are staggeredly pair
Claim setting.Specifically, the second pull-up resistor Rup2 is connect with slave interface end SBUS2, the first signal shaping unit it is defeated
Outlet is connect with the slave interface end SBUS2, and the signal that host is sent is successively by comparing and being sent to slave after shaping
Interface end SBUS2.
The non-inverting input terminal of second comparing unit is connect with the slave interface end SBUS2, second comparing unit
Inverting input terminal is connect with the output end that first reference signal generates unit.Specifically, second comparing unit includes:
Second diode D2, third comparator OP3 and the 7th resistance R7, the cathode of the second diode D2 and the slave interface end
SBUS2 connection；The non-inverting input terminal of third comparator OP3 is connect with the second diode D2 anode, the third comparator
The inverting input terminal of OP3 is connect with the output end of second bleeder circuit, that is, with the 5th resistance R5 and the 6th resistance R6
Total contact connection.
The first end of 7th resistance R7 is connect with power end Vcc, the second end of the 7th resistance R7 and the third ratio
Non-inverting input terminal connection compared with device OP3.
The input terminal of second signal shaping unit is connect with the second comparing unit output end, the second signal shaping
The output end of unit is connect with the host interface port SBUS1, and the signal that slave is sent successively is passed by comparing with after shaping
It send to host interface port SBUS1.
The second signal shaping unit includes: the 4th comparator OP4, the 8th resistance R8 and third bleeder circuit.4th
The non-inverting input terminal of comparator OP4 is connect with the output end of the third comparator OP3, the output of the 4th comparator OP4
End is connect with the host interface port SBUS1；The first end of 8th resistance R8 is connect with power end Vcc, the 8th resistance R8
Second end connect with the non-inverting input terminal of the 4th comparator OP4.
Third bleeder circuit includes concatenated 9th resistance R9 and the tenth resistance R10, the input of the third bleeder circuit
End is connect with power end Vcc, and the inverting input terminal of the output end of the third bleeder circuit and the 4th comparator OP4 connect
It connects, using the voltage on the tenth resistance R10 as the input voltage of the 4th comparator OP4 inverting input terminal.
Second signal shaping unit carries out shaping, the output of third comparator OP3 to the output signal of third comparator OP3
Signal exports after passing through the first signal shaping unit shaping, and is sent to host interface port SBUS1.Signal drives after shaping
Kinetic force is stronger, is equivalent to and has carried out relaying reinforcement processing to signal, increases the anti-interference ability of signal, and transmission range is more
It is long, and improve the accuracy transmitted at a distance.
The input terminal that second reference signal generates unit is connect with the second comparing unit output end, second benchmark
The output end of signal generation unit is connect with the inverting input terminal of first comparing unit.
It includes: the second buffer U2 and the 4th bleeder circuit, the second buffer U2 that second reference signal, which generates unit,
Input terminal connect with the output end of the third comparator OP3；4th bleeder circuit includes the eleventh resistor being arranged in series
R11 and twelfth resistor R12, the input terminal of the 4th bleeder circuit are connect with the output end of the second buffer U2, institute
The output end for stating the 4th bleeder circuit is connect with the inverting input terminal of the first comparator OP1.
The course of work is as follows:
When host interface port SBUS1 issues high level signal, i.e., voltage is pulled to high level by the first pull-up resistor Rup1, defeated
Enter to the non-inverting input terminal of first comparator OP1, first comparator OP1 exports high level, the high electricity of the output of first comparator OP1
Ordinary mail number exports after the first signal shaping unit shaping, and the host interface port SBUS1 high level signal issued is sent to
Slave interface end SBUS2.That is the high level signal of first comparator OP1 output passes through the first signal shaping unit shaping
Afterwards, driving capability is stronger, is easy to transmit at a distance, and has stronger anti-interference ability, improves the accuracy of signal transmission, this
In invention, signal shaping unit plays the role of signal relaying output.
Meanwhile the high level signal of first comparator OP1 output, it is sent to the input that the first reference signal generates unit
End, so that the first reference signal, which generates, exports height between unit output high level, that is, the 5th resistance R5 and the 6th resistance R6
Level so that third comparator OP3 exports low level signal, and is sent to second to the inverting input terminal of third comparator OP3
Reference signal generates the input terminal of unit, so that the second reference signal generates unit and exports low level, that is, eleventh resistor
The inverting input terminal that low level to first comparator OP1 is exported between R11 and twelfth resistor R12, by first comparator OP1's
Inverting input terminal is maintained at low level, so that first comparator OP1 stablizes output high level signal, final slave interface end
SBUS2 keeps receiving high level signal.
When host interface port SBUS1 issues low level signal, only host interface port SBUS1 need to be pulled down to low level i.e.
Can, at this point, input low level signal is input to the non-inverting input terminal of first comparator OP1, first comparator OP1 exports low electricity
Flat, the output low level signal of first comparator OP1 exports after the first signal shaping unit shaping, by host interface port
The low level signal that SBUS1 is issued is sent to slave interface end SBUS2.
Meanwhile the low level signal of first comparator OP1 output, it is sent to the input that the first reference signal generates unit
End, so that being exported between the first reference signal generation unit output low level, that is, the 5th resistance R5 and the 6th resistance R6 low
Level so that third comparator OP3 exports high level signal, and is sent to second to the inverting input terminal of third comparator OP3
Reference signal generates the input terminal of unit, so that the second reference signal generates unit and exports high level, that is, eleventh resistor
The inverting input terminal that high level to first comparator OP1 is exported between R11 and twelfth resistor R12, by first comparator OP1's
Inverting input terminal is maintained at high level, so that first comparator OP1 stablizes output low level signal, final slave interface end
SBUS2 keeps receiving low level signal.
In above process, the benchmark that reference signal generates unit output end changes, steady to keep signal to transmit
It is qualitative.
When slave interface end SBUS2 sends signal, and host interface port SBUS1 receives signal, the course of work and above-mentioned master
The process that machine interface end SBUS1 sends a signal to slave interface end SBUS2 is consistent.
First monitoring unit includes the cathode connection of light emitting diode in one first optocoupler U3, the first optocoupler U3
The output end of the first buffer U1, the anode of light emitting diode is connected by thirteenth resistor R13 in the first optocoupler U3
Meet power end Vcc；
The emitter of triode connects three poles in ground wire the Moni Gnd, the first optocoupler U3 of monitoring side in the first optocoupler U3
The collector of pipe is connected to by the collector that the 15th resistance R15 connects triode in monitoring power supply Vdd, the first optocoupler U3
First monitoring side Moni1.
The power supply Vdd of monitoring side and the power end Vcc of host and slave processors interface end are two independent power supplys, by optocoupler into
Row isolation, similarly, the ground wire Moni Gnd of monitoring side and the ground wire of host and slave processors interface end are two independent earthed systems, are kept away
Exempt from monitoring side to interfere with each other with the generation of host and slave processors interface end.
Second monitoring unit includes the cathode connection of light emitting diode in one second optocoupler U4, the second optocoupler U4
The output end of the second buffer U2, the anode of light emitting diode passes through the 14th resistance R14 and connects in the second optocoupler U4
Meet power end Vcc；
The emitter of triode connects three poles in ground wire the Moni Gnd, the second optocoupler U4 of monitoring side in the second optocoupler U4
The collector of pipe is connected to by the collector that the 16th resistance R16 connects triode in monitoring power supply Vdd, the second optocoupler U4
Second monitoring side Moni2.
It follows that the power supply of power end and master-slave interface end used by the first monitoring unit and the second monitoring unit
End is mutually indepedent, and the ground wire of use is also mutually indepedent, eliminates interfering with each other between two monitoring unit and master-slave interface end,
The first monitoring side Moni1 and the second monitoring side Moni2 is built up in side simultaneously, is convenient for monitoring observation.
Monitoring process is as follows:
When first comparator OP1 exports high level, the first optocoupler U3 is not triggered, and the first monitoring side Moni1 receives high level.
When first comparator OP1 exports low level, the first optocoupler U3 is triggered, and the first monitoring side Moni1 receives low level.
When third comparator OP3 exports high level, the second optocoupler U4 is not triggered, and the second monitoring side Moni2 receives height
Level.When third comparator OP3 exports low level, the second optocoupler U4 is triggered, and the second monitoring side Moni2 receives low level.
The level signal on slave connection can be monitored by two monitoring unit.
From the above mentioned, the present invention is provided with monitoring unit in host side and signal transmssion line from generator terminal, passes to data
It is defeated to be monitored, and signal transmitting and receiving end is fed back to, preferably to carry out feedback control；Two signal monitoring units carry out signals every
From elimination master-slave interface end electric signal improves the accuracy and reliability to signal monitoring to the interference on monitoring side；Together
When, the present invention plays signal relaying action, it is logical to send signal by the way that signal shaping unit is respectively set in host side and from generator terminal
Long distance transmission is carried out after crossing signal shaping enhancing, increases signal long-distance transmittability.Meanwhile it reducing signal transmission and missing
Code rate improves the reliability of monobus signal transmission.Also, the variation benchmark that unit is generated by reference signal, improves
Stability of the signal in transmission process.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easy
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of monobus communication signal repeat circuit with monitoring function characterized by comprising
First signal shaping unit, input terminal are connect with host interface port, the output end of the first signal shaping unit with
The connection of slave interface end；
Second signal shaping unit, input terminal are connect with slave interface end, the output end of the second signal shaping unit with
Host interface port connection；
First monitoring unit, control terminal are connect with host interface port, for monitoring the transmission electric signal of the host interface port；
Second monitoring unit, control terminal are connect with slave interface end, for monitoring the transmission electric signal of the slave interface end.
2. as described in claim 1 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that the master
Machine interface end is provided with the first comparing unit, and first comparing unit includes:
First diode, cathode are connect with the host interface port, and the host interface port is also connected with one first pull-up resistor；
First comparator, non-inverting input terminal are connect with the first diode anode；
First resistor, first end are connect with power end, the same phase of the second end of the first resistor and the first comparator
Input terminal connection.
3. as claimed in claim 2 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that described the
One signal shaping unit includes:
Second comparator, non-inverting input terminal are connect with the output end of the first comparator, the output of second comparator
End is connect with the slave interface end；
Second resistance, first end are connect with power end, the same phase of the second end of the second resistance and second comparator
Input terminal connection；
First bleeder circuit comprising concatenated 3rd resistor and the 4th resistance, the input terminal and electricity of first bleeder circuit
Source connection, the output end of first bleeder circuit are connect with the inverting input terminal of second comparator.
4. as claimed in claim 3 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that further include
First reference signal generates unit, and first reference signal generates unit and includes:
First buffer, input terminal are connect with the output end of the first comparator；
Second bleeder circuit comprising the 5th resistance being arranged in series and the 6th resistance, the input terminal of second bleeder circuit
It is connect with the output end of first buffer.
5. as claimed in claim 4 with monitoring function monobus communication signal repeat circuit, which is characterized in that it is described from
Machine interface end is provided with the second comparing unit, and second comparing unit includes:
Second diode, cathode are connect with the slave interface end, and the slave interface end is also connected with one second pull-up resistor；
Third comparator, non-inverting input terminal are connect with second diode anode, the anti-phase input of the third comparator
Meet the output end connection of the second bleeder circuit in end；
7th resistance, first end are connect with power end, the second end and the same phase of the third comparator of the 7th resistance
Input terminal connection.
6. as claimed in claim 5 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that described the
Binary signal shaping unit includes:
4th comparator, non-inverting input terminal are connect with the output end of the third comparator, the output of the 4th comparator
End is connect with the host interface port；
8th resistance, first end are connect with power end, the second end and the same phase of the 4th comparator of the 8th resistance
Input terminal connection；
Third bleeder circuit comprising concatenated 9th resistance and the tenth resistance, the input terminal and electricity of the third bleeder circuit
Source connection, the output end of the third bleeder circuit are connect with the inverting input terminal of the 4th comparator.
7. as claimed in claim 6 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that further include
Second reference signal generates unit, and second reference signal generates unit and includes:
Second buffer, input terminal are connect with the output end of the third comparator；
4th bleeder circuit comprising the eleventh resistor and twelfth resistor being arranged in series, the 4th bleeder circuit it is defeated
Enter end to connect with the output end of second buffer, the output end of the 4th bleeder circuit is anti-with the first comparator
The connection of phase input terminal.
8. as claimed in claim 7 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that described the
One monitoring unit includes one first optocoupler, and the cathode of light emitting diode connects the defeated of first buffer in first optocoupler
Outlet, the anode of light emitting diode connects power end by thirteenth resistor in first optocoupler；
The emitter of triode connects the ground wire of monitoring side in first optocoupler, and the collector of triode is logical in first optocoupler
It crosses the 15th resistance and connects monitoring power supply, the collector of triode is connected to the first monitoring side in first optocoupler.
9. as claimed in claim 8 with the monobus communication signal repeat circuit of monitoring function, which is characterized in that described the
Two monitoring unit include one second optocoupler, and the cathode of light emitting diode connects the defeated of second buffer in second optocoupler
Outlet, the anode of light emitting diode connects power end by the 14th resistance in first optocoupler；
The emitter of triode connects the ground wire of monitoring side in second optocoupler, and the collector of triode is logical in second optocoupler
It crosses the 16th resistance and connects monitoring power supply, the collector of triode is connected to the second monitoring side in second optocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563998.0A CN109726160B (en) | 2018-12-20 | 2018-12-20 | Single-bus communication signal relay circuit with monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563998.0A CN109726160B (en) | 2018-12-20 | 2018-12-20 | Single-bus communication signal relay circuit with monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109726160A true CN109726160A (en) | 2019-05-07 |
| CN109726160B CN109726160B (en) | 2023-05-09 |
Family
ID=66296956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811563998.0A Active CN109726160B (en) | 2018-12-20 | 2018-12-20 | Single-bus communication signal relay circuit with monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109726160B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124751A (en) * | 1990-09-17 | 1992-04-24 | Toshiba Corp | Data transfer system |
| JP2001044943A (en) * | 1999-07-28 | 2001-02-16 | Fuji Xerox Co Ltd | Optical bus system device |
| CN1821989A (en) * | 2005-12-31 | 2006-08-23 | 福建师范大学 | Single bus two-way communication protocol revolving analyzer |
| JP2008072168A (en) * | 2006-09-12 | 2008-03-27 | Fujitsu Ten Ltd | Monitor circuit for one-wire communication |
| CN203203722U (en) * | 2013-04-26 | 2013-09-18 | 长江三峡能事达电气股份有限公司 | DS18B20-based multipath intelligent temperature inspecting instrument |
| CN204217129U (en) * | 2014-11-21 | 2015-03-18 | 安徽大学 | The many relayings of a kind of radio selective are from cooperating transmitting device |
| CN105068480A (en) * | 2015-08-07 | 2015-11-18 | 任军军 | Audio signal/ data unibus multiplexing intelligent pickup system |
| CN105955905A (en) * | 2016-04-18 | 2016-09-21 | 合肥工业大学 | Interface circuit based on serial bus structure and communication protocol |
| DE102017104820A1 (en) * | 2016-03-08 | 2017-09-14 | Johnson Electric S.A. | Bidirectional single-wire communication circuit |
| CN207266039U (en) * | 2017-10-25 | 2018-04-20 | 福州思飞信息技术有限公司 | A kind of single line anti-collision competitive mode bus network |
-
2018
- 2018-12-20 CN CN201811563998.0A patent/CN109726160B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124751A (en) * | 1990-09-17 | 1992-04-24 | Toshiba Corp | Data transfer system |
| JP2001044943A (en) * | 1999-07-28 | 2001-02-16 | Fuji Xerox Co Ltd | Optical bus system device |
| CN1821989A (en) * | 2005-12-31 | 2006-08-23 | 福建师范大学 | Single bus two-way communication protocol revolving analyzer |
| JP2008072168A (en) * | 2006-09-12 | 2008-03-27 | Fujitsu Ten Ltd | Monitor circuit for one-wire communication |
| CN203203722U (en) * | 2013-04-26 | 2013-09-18 | 长江三峡能事达电气股份有限公司 | DS18B20-based multipath intelligent temperature inspecting instrument |
| CN204217129U (en) * | 2014-11-21 | 2015-03-18 | 安徽大学 | The many relayings of a kind of radio selective are from cooperating transmitting device |
| CN105068480A (en) * | 2015-08-07 | 2015-11-18 | 任军军 | Audio signal/ data unibus multiplexing intelligent pickup system |
| DE102017104820A1 (en) * | 2016-03-08 | 2017-09-14 | Johnson Electric S.A. | Bidirectional single-wire communication circuit |
| CN105955905A (en) * | 2016-04-18 | 2016-09-21 | 合肥工业大学 | Interface circuit based on serial bus structure and communication protocol |
| CN207266039U (en) * | 2017-10-25 | 2018-04-20 | 福州思飞信息技术有限公司 | A kind of single line anti-collision competitive mode bus network |
Non-Patent Citations (2)
| Title |
|---|
| 马占敖;齐志才;: "基于1-Wire信号采集系统及应用" * |
| 马占敖等: "基于1-Wire信号采集系统及应用", 《制造业自动化》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109726160B (en) | 2023-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101572642B (en) | RS485 communication circuit | |
| CN105262490B (en) | Based on Manchester Code/decode Adaptable System and its method | |
| CN104776559B (en) | A kind of convertible frequency air-conditioner and its bus-type electric current loop communication system | |
| CN208477523U (en) | A kind of arithmetic system and corresponding electronic equipment | |
| CN106095708B (en) | Current loop communication system for two-wire system half-duplex multi-machine communication | |
| CN206313786U (en) | MBUS principal and subordinate's monitoring devices | |
| CN103926862B (en) | The means of communication of micro energy lose M-bus slave terminal circuits for intelligence instrument communication | |
| CN209248523U (en) | A kind of monobus communication signal repeat circuit | |
| CN209250667U (en) | A kind of monobus communication signal enhancing circuit with monitoring function | |
| CN109726160A (en) | A kind of monobus communication signal repeat circuit with monitoring function | |
| CN109522260A (en) | A kind of monobus communication signal repeat circuit | |
| CN109474505A (en) | A kind of monobus communication signal enhancing circuit with monitoring function | |
| CN209250665U (en) | A kind of monobus communication signal isolation circuit | |
| CN112698605A (en) | Multi-node communication circuit | |
| CN209250666U (en) | A kind of monobus communication signal isolation circuit with monitoring function | |
| CN203520392U (en) | Communication circuit for electronic exploration detonator | |
| CN109450762A (en) | A kind of monobus communication signal isolation circuit with monitoring function | |
| CN208154732U (en) | Slave telecommunication circuit, slave, electrical equipment and slave telecommunication circuit | |
| CN208459351U (en) | Gas detection system based on DC24V carrier wave communication technology | |
| CN109525475A (en) | A kind of monobus communication signal isolation circuit | |
| CN210041858U (en) | One-master multi-slave high-speed serial communication device | |
| CN109450762B (en) | Single-bus communication signal isolation circuit with monitoring function | |
| CN109525475B (en) | Single bus communication signal isolation circuit | |
| CN109586750A (en) | A kind of monobus communication signal enhancing circuit | |
| CN209149104U (en) | A kind of activation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |