CN109359072A - A kind of single-ended variable connector expanding unit - Google Patents
A kind of single-ended variable connector expanding unit Download PDFInfo
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- CN109359072A CN109359072A CN201810955264.0A CN201810955264A CN109359072A CN 109359072 A CN109359072 A CN 109359072A CN 201810955264 A CN201810955264 A CN 201810955264A CN 109359072 A CN109359072 A CN 109359072A
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- 238000010168 coupling process Methods 0.000 claims abstract description 47
- 238000005859 coupling reaction Methods 0.000 claims abstract description 47
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 230000001052 transient effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- BNPSSFBOAGDEEL-UHFFFAOYSA-N albuterol sulfate Chemical compound OS(O)(=O)=O.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 BNPSSFBOAGDEEL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
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Abstract
The invention discloses a kind of single-ended variable connector expanding units, including several single-ended multichannel input module, compound coupling module, high speed processing units, the output end of single-ended multichannel input module connects the input terminal of compound coupling module, the input terminal of the output end connection high speed processing unit of compound coupling module；Each single-ended multichannel input module for be introduced separately into all the way signal to compound coupling module, compound coupling module carries out coupling processing to multiple signals, wherein signal, high speed processing unit export after being AD converted for reading the signal received all the way for timesharing output.A kind of single-ended variable connector expanding unit of the invention, multiple signals input is introduced by several single-ended multichannel input modules, compound coupling module exports the time sharing shared port AD of multiple signals after passing through coupling processing, high speed processing unit reads the signal received, it is exported after being AD converted, and then realizes and extend multiple groups difference analog or digital signal on same data/address bus.
Description
Technical field
The present invention relates to a kind of signal extension field more particularly to a kind of single-ended variable connector expanding units.
Background technique
Variable connector, i.e. data selector (data selector), data selector is according to given input address generation
Code, specified one is selected from one group of input signal and is sent to the combinational logic circuit of output end.Sometimes it is also called multichannel
Selector or multiplexer (multiplexer).It, can as needed will wherein in multichannel data transmit process
The common classification of the circuit multiple selector arbitrarily elected all the way has 41 data selector, 8 is selected to select 1 data selector (model
74151,74LS151,74251,74LS152), 16 select 1 data selector (composition can be connected with two panels 74151) etc.
Point.Multiple selector further includes the multi-path choice of bus, the multi-path choice etc. of analog signal.
At present.In multiple-channel output extension, the extension of mostly single analog signal or single digital signal expand in the market
Exhibition, transfer efficiency is low, and dry resistance is poor.Based on this, the extension multiple groups difference analog signal on same data/address bus how is realized
Or digital signal, the problem of being current urgent need to resolve.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of single-ended variable connectors to extend
Device can be realized the extension multiple groups difference analog or digital signal on same data/address bus.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of single-ended variable connector expanding unit, including several single-ended multichannel input modules, compound coupling module, height
The output end of fast processing unit, the single-ended multichannel input module connects the input terminal of the compound coupling module, described compound
The output end of coupling module connects the input terminal of the high speed processing unit；Each single-ended multichannel input module is for single
It solely introduces signal to the compound coupling module, the compound coupling module all the way and coupling processing, timesharing is carried out to multiple signals
Wherein signal, the high speed processing unit export after being AD converted for reading the signal received all the way for output.
Further, the single-ended multichannel input module includes filter circuit.
Further, the single-ended multichannel input module further includes transient voltage suppressor.
Further, the compound coupling module includes multiplexer.
Further, the multiplexer is CD4051BCMTC multiplexer.
Further, the high speed processing unit includes ARM9 processor.
Further, the ARM9 processor is connected with USB power source circuit.
Further, ARM9 processor is connected with watchdog module.
Further, common mode is provided on the incoming line of the signal input part side of the single-ended multichannel input module
Inductance.
Further, the output end of the high speed processing unit is connected with output module, and the output module is according to
The setting of high speed processing unit exports corresponding signal.
Compared with prior art, the beneficial effects of the present invention are:
A kind of single-ended variable connector expanding unit of the invention introduces multichannel by several single-ended multichannel input modules
Signal is input to compound coupling module, and compound coupling module passes through the time sharing shared end AD of multiple signals after coupling processing
AD resource is saved in mouth output, and high speed processing unit reads the signal received, exports after being AD converted, and then realizes same
Multiple groups difference analog or digital signal is extended on one data/address bus.
Detailed description of the invention
Fig. 1 is to invent a kind of single-ended each module connection diagram of variable connector expanding unit；
Fig. 2 is the single-ended multichannel input module circuit diagram of Fig. 1；
Fig. 3 is the compound coupling module circuit diagram of Fig. 1；
Fig. 4 is the single-ended multichannel input module of Fig. 1 and compound coupling module circuit connection diagram；
Fig. 5 is Fig. 1 high speed processing element circuit figure；
Fig. 6 is that the compound coupling module output signal of Fig. 5 accesses schematic diagram；
Fig. 7 is the external watchdog module schematic diagram of Fig. 5；
Fig. 8 is Fig. 5 USB power source schematic diagram.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new reality can be formed between various embodiments described below or between each technical characteristic in any combination
Apply example.
A kind of single-ended variable connector expanding unit as Figure 1-Figure 8, including several single-ended multichannel input modules,
The output end of compound coupling module, high speed processing unit, the single-ended multichannel input module connects the input of the compound coupling module
End, the output end of the compound coupling module connect the input terminal of the high speed processing unit；Each single-ended multichannel input module is used
Coupling processing, timesharing are carried out to multiple signals in being introduced separately into signal to the compound coupling module, the compound coupling module all the way
Wherein signal, the high speed processing unit export after being AD converted for reading the signal received all the way for output.
As shown in figure 4, signal enters from connecting terminal, in the signal input part side of the single-ended multichannel input module
Common mode inductance is provided on incoming line, common mode inductance (Common mode Choke) is also common mode choke, is usually used in electricity
The electromagnetic interference signal of common mode is filtered in the Switching Power Supply of brain.In board design, common mode inductance has been also the work of EMI filtering
With for inhibiting the electromagnetic wave outside radiation-emitting of HW High Way generation.Due to be mixed on mainboard various high-frequency circuits,
Digital circuit and analog circuit, they can generate a large amount of frequency electromagnetic waves when working and interfere with each other, and here it is EMI.EMI can also
It is launched outward by mainboard wiring or external cable, causes electromagnetic radiation pollution, influenced other electronic equipments and work normally.
And common mode inductance can play the role of inhibiting electromagnetic radiation, be conducive to the data transmission of HW High Way.Signal enters single-ended
After multichannel input module, pressure limiting and filtering processing need to be carried out, single-ended multichannel input module is as shown in Fig. 2, the single-ended multichannel is defeated
Entering module includes filter circuit and transient voltage suppressor.Filtered electrical routing capacitance, inductance and resistance composition, filtered electrical
Road can the frequency other than the frequency point or the frequency point to specific frequency on route effectively filter out, obtain a specific frequency
Signal, or eliminate a specific frequency after signal, realize to access signal filtering processing.Transient voltage inhibits two poles
Pipe is a kind of new product to grow up on voltage-stabiliser tube Process ba- sis, and circuit symbol is identical with common zener diode, outside
Shape is also no different with general-purpose diode, and when TVS pipe both ends are subjected to the high energy impact events of moment, it can make it with high speed
Impedance reduces suddenly, at the same absorb a high current, by the voltage clamp between its both ends one it is scheduled numerically, thus
Ensure that subsequent circuit element is damaged from the impact of transient state high-energy.It is a kind of high-effect protector of diode
Part, when the two poles of the earth of TVS diode are by reversed transient state high energy impact events, it can be rapidly by the high impedance of its two interpolar
Become Low ESR, absorbs up to thousands of watts of surge power, make the voltage clamping of two interpolars in a predetermined value, effectively protect
The precision components in electronic circuit are protected, from the damage of various surge pulses.After pressure limiting and filtering processing, signal is defeated
Out to the compound coupling module.It should be noted that a kind of single-ended variable connector expanding unit of the present embodiment, each list
End multichannel input module can be introduced separately into signal to the compound coupling module, compound coupling module all the way and support multiple lists
End multichannel input module inputs simultaneously.
Compound coupling module is as shown in figure 3, the compound coupling module includes multiplexer.The multiplexer is
CD4051BCMTC multiplexer, multiplexer can receive multiple input signals, can reset mode by each input signal
Synthesize single output signal.Multiplexer is a kind of integrated system, generally comprise certain amount data input, have one individually
Output.Multiplexer (multiplexer or mux) can select some signal from multiple analog or digital input signals
And be forwarded, different selected signals is output in the same outlet line.Multiplexing technology is also applied in software operation
When, it can while will be in multithreading information flow to equipment or program.The compound coupling module of the present embodiment, to the more of input
Road signal carries out the coupling processing of signal, and signal arrives next module all the way for output, and compound coupling module support multichannel signal is same
When input, for more inputting, increase a module extension.Compound coupling module carries out the multiple signals of input
Scan round, single point in time export signal all the way therein.By high-velocity scanning, any signal all the way will not be missed.In Fig. 3,
Multiple signals input is finally exported using same AD output port, and AD resource is saved.
High speed processing unit is as shown in figure 5, the high speed processing unit includes ARM9 processor.Arm processor is Britain
The first item risc microcontroller of the low-power consumption cost of Acorn Co., Ltd design.Full name is Advanced RISC
Machine.Arm processor itself is 32 designs, but is also equipped with 16 bit instruction collection, in general than 32 code sections of equal value
It saves up to 35%, the institute that can but retain 32 systems is advantageous.ARM9 uses Harvard architecture, and instruction and data adheres to difference separately
Bus, can be with parallel processing.On assembly line, ARM7 is three class pipeline, and ARM9 is five-stage pipeline.Not due to structure
Together, execution efficiency is higher for ARM9 processor such as ARM7 processor relatively.As shown in fig. 6, compound coupling module output
Signal is exported by direction shown in arrow in Fig. 6 to high speed processing unit.High speed processing unit utilizes own processor advantage
The signal of feeding is quickly read.Data are subjected to buffered, and are sent into buffering queue, while being notified at high speed
Manage unit inside output link, after the inside output link of high speed processing unit receives the notice of high-speed cells, to data into
Row processing, realizes data AD conversion.After the completion of processing, exported by internal output link.The output end of the high speed processing unit
It is connected with output module, which exports corresponding signal according to high speed processing unit setting.Output module is basis
The specific requirements of user export corresponding signal or control signal, these demands and can be realized by the configuration to processor.
In addition, the ARM9 processor is connected with USB power source circuit and watchdog module.USB power source circuit as shown in figure 8,
USB power source is entire single-ended variable connector expanding unit power supply, realizes the operation of entire single-ended variable connector expanding unit.It sees
As shown in fig. 7, house dog order possesses highest priority in the interruption of program, watchdog module exists door dog modular circuit
In microcomputer system consisting of a single chip microcomputer, since the work of single-chip microcontroller usually will receive doing from external electromagnetic field
It disturbs, causes the data corruption of various registers and memory, will lead to program pointer mistake, not in program area, take out the journey of mistake
Sequence instruction etc., can all fall into endless loop, the normal operation of program is interrupted, and can not be continued normally by monolithic processor controlled system
Work, will cause whole system falls into dead state, and unpredictable consequence occurs.House dog is exactly regularly to check core
Situation inside piece, issues the circuit of Restart Signal once mistake occurs to chip, and application allows single-chip microcontroller in nothing
Continuous work is realized under people's state.
A kind of single-ended variable connector expanding unit of the present embodiment is introduced more by several single-ended multichannel input modules
Road signal is input to compound coupling module, and compound coupling module passes through the time sharing shared AD of multiple signals after coupling processing
AD resource is saved in port output, and high speed processing unit reads the signal received, exports after being AD converted, and then realizes
Multiple groups difference analog or digital signal is extended on same data/address bus.So that multiple-channel output extension improves transfer efficiency, resist dry
Immunity is also relatively strong.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of single-ended variable connector expanding unit, it is characterised in that: including several single-ended multichannel input modules, compound coupling
The output end of module, high speed processing unit, the single-ended multichannel input module connects the input terminal of the compound coupling module, institute
The output end for stating compound coupling module connects the input terminal of the high speed processing unit；Each single-ended multichannel input module is used
Coupling processing is carried out to multiple signals in being introduced separately into signal to the compound coupling module, the compound coupling module all the way,
Wherein signal, the high speed processing unit export after being AD converted for reading the signal received all the way for timesharing output.
2. a kind of single-ended variable connector expanding unit as described in claim 1, it is characterised in that: the single-ended multichannel inputs mould
Block includes filter circuit.
3. a kind of single-ended variable connector expanding unit as claimed in claim 2, it is characterised in that: the single-ended multichannel inputs mould
Block further includes transient voltage suppressor.
4. a kind of single-ended variable connector expanding unit as described in claim 1, it is characterised in that: the compound coupling module packet
Include multiplexer.
5. a kind of single-ended variable connector expanding unit as claimed in claim 4, it is characterised in that: the multiplexer is
CD4051BCMTC multiplexer.
6. a kind of single-ended variable connector expanding unit as described in claim 1, it is characterised in that: the high speed processing unit packet
Include ARM9 processor.
7. a kind of single-ended variable connector expanding unit as claimed in claim 6, it is characterised in that: the ARM9 processor connection
There is USB power source circuit.
8. a kind of single-ended variable connector expanding unit as claimed in claim 6, it is characterised in that: ARM9 processor, which is connected with, to be seen
Door dog module.
9. a kind of single-ended variable connector expanding unit as described in claim 1, it is characterised in that: the single-ended multichannel inputs mould
Common mode inductance is provided on the incoming line of the signal input part side of block.
10. a kind of single-ended variable connector expanding unit as described in claim 1, it is characterised in that: the high speed processing unit
Output end be connected with output module, the output module exports corresponding signal according to high speed processing unit setting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955264.0A CN109359072A (en) | 2018-08-21 | 2018-08-21 | A kind of single-ended variable connector expanding unit |
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| CN201810955264.0A CN109359072A (en) | 2018-08-21 | 2018-08-21 | A kind of single-ended variable connector expanding unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391823A (en) * | 2019-07-31 | 2019-10-29 | 珠海格力电器股份有限公司 | Telecommunication circuit and its control method, the equipment with communication function |
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- 2018-08-21 CN CN201810955264.0A patent/CN109359072A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391823A (en) * | 2019-07-31 | 2019-10-29 | 珠海格力电器股份有限公司 | Telecommunication circuit and its control method, the equipment with communication function |
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Country or region after: China Address after: No. 56 Nanli East Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000 Applicant after: Guangdong Baolun Electronics Co.,Ltd. Address before: No. 1400, building B, Zhongcun District, Panyu city, Guangdong Province Applicant before: GUANGZHOU ITC ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region before: China |
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