CN203225749U - Master-slave two-way communication system - Google Patents
Master-slave two-way communication system Download PDFInfo
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- CN203225749U CN203225749U CN 201320097062 CN201320097062U CN203225749U CN 203225749 U CN203225749 U CN 203225749U CN 201320097062 CN201320097062 CN 201320097062 CN 201320097062 U CN201320097062 U CN 201320097062U CN 203225749 U CN203225749 U CN 203225749U
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- 238000004891 communication Methods 0.000 title claims abstract description 40
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model provides a master-slave mode two-way communication system, including host system and from the machine system, connect in parallel on the power bus who is connect out by host system from the machine system, host system includes DC power supply, and DC power supply connects out power bus, DC power supply are connected to host system's treater CPU behind voltage stabilizing circuit, and host system's treater CPU is connected to first switch behind electronic switch drive circuit, on the first switch other end is connected to power bus's positive pole line, host system's treater CPU is connected to power bus's negative pole on through rectification electrical apparatus and power amplifier circuit. Because of adopting the utility model provides a master-slave mode two-way communication system has realized the two-way communication of host computer system and slave computer system, saves communication line, directly transmits digital signal through the power line; after the lines are reduced, the construction cost is saved; the terminal equipment has low cost.
Description
Technical field
The utility model relates to a kind of communication system, relates in particular to a kind of master-slave mode intercommunication system and control method.
Background technology
Wire communication is to use at present at most, the most reliable communication mode, and such as present Ethernet, telephone wire, 485 communications, CAN bus communication etc.Power line communication technology is called for short the PLC technology, it is a kind of communication mode that utilizes power distribution network low-voltage circuit transmission preface, there is following problem in this technology: 1, distribution transformer has iris action to power carrier signal, so power carrier signal can only transmit in a distribution transformer regional extent, this has had very big restriction to network interconnected; 2, the loading interfaces on the low tension wire is more, and the electrical equipment frequency characteristic has nothing in common with each other, and impedance time variation and randomness are big, is difficult to accomplish impedance matching, and exists the interference signal that bigger frequency differs; 3, the intrinsic impulse disturbances of power line existence itself in ac cycle each time, two minor peaks occur, and two minor peaks will be brought the interference of two subpulses; 4, power line causes high the reduction to carrier signal.When load on the power line was very heavy, line impedance can reach 1 ohm once, causes the height of carrier signal is cut down; 5, there is high noisy in power line.Be connected to various power consumption equipments on the power line, resistive, perception, capacitive, have powerfully, low power, the often frequent switch of various power consumption equipments will bring various noise jamming to power line, and amplitude is bigger; 6, power line causes the data-signal distortion.Power line is the network of a distributed constant, difference is different to the data-signal influence, different time is also different to the data-signal influence, this just makes the regular data signal that sends through behind the power line, receiving signal is gross distortion, uneven signal, so special processing in addition; 7, external electric network composition is compared with China very big difference, external product can't use in China, the not enough standard of the low-voltage distributing line of residential quarter, and it is inhomogeneous that the user fits up the power-supply wiring level, the quality difference of supply socket connects people's the difficult problem of having brought all for the power line broadband.
Deficiency at wired communication, a large amount of short-distance wireless communication technologies is also proposed in the prior art, but also there is following problem in these short-distance wireless communication technologies: 1, poor anti jamming capability: near have stronger air interference can cause communication distance short, such as the high power television machine, the unlatching of air-conditioning, communication broadcast launching tower etc. all can produce strong jamming to wireless module; 2, a plurality of communications when communication, can influence the communication distance of module simultaneously to some extent; 3, communication is unstable: the interference of adjacent frequency or a plurality of passage can result in blockage when communicating by letter simultaneously and cause the unstable even paralysis fully of communication.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of designs simplification, the master-slave mode intercommunication system that stability is high.
Provide a kind of master-slave mode intercommunication system at the utility model, comprise host computer system and slave system, slave system is connected in parallel on the power bus that is picked out by host computer system, described host computer system comprises DC power supply, described DC power supply picks out described power bus, described DC power supply is through being connected to the processor CPU of host computer system behind the voltage stabilizing circuit, be connected to first switch behind the processor CPU process electronic switch drive circuit of described host computer system, the described first switch other end is connected on the electrode line of power bus, the processor CPU of host computer system is connected to the negative line of power bus through rectification appliance and power supply amplifying circuit, when first switch closure, the signal of communication that the processor CPU of described host computer system sends exports slave system to via described electrode line.
Further, described slave system comprises processor CPU, the electrode line of described power bus is through being connected to the processor CPU of described slave system behind the signal detection circuit, after the electrode line and the node between the signal detection circuit of power bus, through forward diode, shunt capacitance between electrode line and negative line, be connected to processor CPU through voltage stabilizing circuit again, be communicated with by bypass between the electrode line of power bus and the negative line, described bypass is provided with low resistance resistance, the processor CPU of slave system is connected to an end of second switch by the electronic switch drive circuit, the other end of second switch is connected with bypass, when second switch was closed, the signal of communication that the processor CPU of described slave system sends was delivered to negative line.
Because the master-slave mode intercommunication system that adopts the utility model to provide, by the simplified design to host computer system, and utilize switch control communication signal transmission, realized the two-way communication of host computer system and slave system, save communication line, directly by the power line transmission of digital signals; After reducing circuit, save construction cost; The terminal equipment cost is low.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the master-slave mode intercommunication system topological diagram that the utility model embodiment provides;
Fig. 2 shows the host computer system circuit diagram that the utility model embodiment provides;
Fig. 3 shows the slave system circuit diagram that the utility model embodiment provides;
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As shown in Figure 1, the utility model embodiment provides a kind of master-slave mode intercommunication system, comprise 1 host computer system and a plurality of slave system, host computer system external power supply bus 200, power bus 200 comprises electrode line and negative line, and slave system is connected in parallel on the power bus 200, and host computer system is by power bus 200 outside output communication signals, for example be square-wave signal, slave system is by power bus 200 receiving communication signals.
Referring to Fig. 2, host computer system comprises DC power supply, DC power supply picks out power bus 200, DC power supply is connected to processor CPU through behind the voltage stabilizing circuit, the other end that is connected to first switch, 300, the first switches 300 behind the processor CPU process electronic switch drive circuit is connected on the electrode line of power bus 200.The negative line of power bus 200 is provided with low resistance resistance 401, and processor CPU passes through shaping circuit and current amplifier successively, is connected on the negative line of power bus 200.
Referring to Fig. 3, slave system comprises processor CPU, the electrode line of power bus 200 is connected to processor CPU through behind the signal detection circuit, after the electrode line and the node between the signal detection circuit of power bus 200, through forward diode 100, shunt capacitance 500 between electrode line and negative line, be connected to processor CPU through voltage stabilizing circuit again, be communicated with by bypass between the electrode line of power bus 200 and the negative line, bypass is provided with low resistance resistance 400, the processor CPU of slave system is connected to first end of second switch 301 by the electronic switch drive circuit, and the other end of second switch 301 is connected with bypass.
Signal of communication is sent by the processor CPU of host computer system, electrode line through power bus 200 transfers to each slave system, drive the break-make of first switch 300 by the electronic switch drive circuit, the opportunity of sending and frequency with the control signal of communication, the signal detection circuit of slave system detects when on the electrode line of power bus 200 signal of communication being arranged, signal of communication is sent to the processor CPU of slave system, and the power supply that power bus 200 provides is in the filtering through electric capacity 500, after the voltage stabilizing of voltage stabilizing circuit is handled, be delivered among the processor CPU of slave system, the processor CPU of slave system is after receiving signal of communication, handled, drive second switch 301 closures by the electronic switch drive circuit on the slave system, signal of communication after the processor CPU processing of slave system is delivered on the negative line of power bus 200, host computer system is behind the signal of communication that receives on the negative line, signal of communication passes through current amplifier and rectification circuit successively, be delivered among the processor CPU of host computer system, thereby realized two-way communication between host computer system and the slave system.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. master-slave mode intercommunication system, comprise host computer system and slave system, slave system is connected in parallel on the power bus that is picked out by host computer system, it is characterized in that, described host computer system comprises DC power supply, described DC power supply picks out described power bus, described DC power supply is through being connected to the processor CPU of host computer system behind the voltage stabilizing circuit, be connected to first switch behind the processor CPU process electronic switch drive circuit of described host computer system, the described first switch other end is connected on the electrode line of power bus, the processor CPU of host computer system is connected to the negative line of power bus through rectification appliance and power supply amplifying circuit, when first switch closure, the signal of communication that the processor CPU of described host computer system sends exports slave system to via described electrode line.
2. master-slave mode intercommunication system as claimed in claim 1, it is characterized in that, described slave system comprises processor CPU, the electrode line of described power bus is through being connected to the processor CPU of described slave system behind the signal detection circuit, after the electrode line and the node between the signal detection circuit of power bus, through forward diode, shunt capacitance between electrode line and negative line, be connected to processor CPU through voltage stabilizing circuit again, be communicated with by bypass between the electrode line of power bus and the negative line, described bypass is provided with low resistance resistance, the processor CPU of slave system is connected to an end of second switch by the electronic switch drive circuit, the other end of second switch is connected with bypass, and when second switch was closed, the signal of communication that the processor CPU of described slave system sends was delivered to negative line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320097062 CN203225749U (en) | 2013-03-04 | 2013-03-04 | Master-slave two-way communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320097062 CN203225749U (en) | 2013-03-04 | 2013-03-04 | Master-slave two-way communication system |
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| Publication Number | Publication Date |
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| CN203225749U true CN203225749U (en) | 2013-10-02 |
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| CN 201320097062 Expired - Fee Related CN203225749U (en) | 2013-03-04 | 2013-03-04 | Master-slave two-way communication system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332043A (en) * | 2014-10-15 | 2015-02-04 | 深圳华远微电科技有限公司 | Remote temperature and humidity monitoring system and method |
| US9417944B2 (en) | 2011-10-05 | 2016-08-16 | Analog Devices, Inc. | Two-wire communication system for high-speed data and power distribution |
| CN106209543A (en) * | 2016-07-14 | 2016-12-07 | 珠海优特电力科技股份有限公司 | A kind of bidirectional bus telecommunication circuit and communication means |
| US9772665B2 (en) | 2012-10-05 | 2017-09-26 | Analog Devices, Inc. | Power switching in a two-wire conductor system |
| US9946680B2 (en) | 2012-10-05 | 2018-04-17 | Analog Devices, Inc. | Peripheral device diagnostics and control over a two-wire communication bus |
| CN110932760A (en) * | 2019-12-16 | 2020-03-27 | 福州准点信息科技有限公司 | Power line intermittent communication system |
-
2013
- 2013-03-04 CN CN 201320097062 patent/CN203225749U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9417944B2 (en) | 2011-10-05 | 2016-08-16 | Analog Devices, Inc. | Two-wire communication system for high-speed data and power distribution |
| US9875152B2 (en) | 2011-10-05 | 2018-01-23 | Analog Devices, Inc. | Methods for discovery, configuration, and coordinating data communications between master and slave devices in a communication system |
| US9946679B2 (en) | 2011-10-05 | 2018-04-17 | Analog Devices, Inc. | Distributed audio coordination over a two-wire communication bus |
| US10311010B2 (en) | 2011-10-05 | 2019-06-04 | Analog Devices, Inc. | Two-wire communication systems and applications |
| US9772665B2 (en) | 2012-10-05 | 2017-09-26 | Analog Devices, Inc. | Power switching in a two-wire conductor system |
| US9946680B2 (en) | 2012-10-05 | 2018-04-17 | Analog Devices, Inc. | Peripheral device diagnostics and control over a two-wire communication bus |
| CN104332043A (en) * | 2014-10-15 | 2015-02-04 | 深圳华远微电科技有限公司 | Remote temperature and humidity monitoring system and method |
| CN106209543A (en) * | 2016-07-14 | 2016-12-07 | 珠海优特电力科技股份有限公司 | A kind of bidirectional bus telecommunication circuit and communication means |
| CN106209543B (en) * | 2016-07-14 | 2019-07-12 | 珠海优特物联科技有限公司 | A kind of bidirectional bus telecommunication circuit and communication means |
| CN110932760A (en) * | 2019-12-16 | 2020-03-27 | 福州准点信息科技有限公司 | Power line intermittent communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140304 |