CN104168221A - Elevator automatic emergency remote communication port isolator and isolation method - Google Patents
Elevator automatic emergency remote communication port isolator and isolation method Download PDFInfo
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- CN104168221A CN104168221A CN201310182059.2A CN201310182059A CN104168221A CN 104168221 A CN104168221 A CN 104168221A CN 201310182059 A CN201310182059 A CN 201310182059A CN 104168221 A CN104168221 A CN 104168221A
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- isolator
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- voltage generator
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Abstract
The invention relates to an elevator automatic emergency remote communication port isolator and isolation method. A sending port of a communication port A of the isolator is connected to a signal isolator and a voltage generator; the output of the signal isolator is connected to a receiving port of a communication port B; the sending port of the communication port C is connected to the signal isolator and the voltage generator; the output of the signal isolator is connected to a receiving port of the communication port A; positive and negative output voltages of the voltage generator are connected to a power supply input of the signal isolator; and positive and negative output voltages of the voltage generator are connected to the power supply input of the signal isolator. Because the isolation is connected with the sending ports, receiving ports, the signal ground ports of the communication ports at the two ends, communication signals of the communication ports of the two sides can be transmitted completely and electric isolation of the communication ports at the two sides can also be realized during the process, thereby effectively protecting the communication ports, improving communication reliability, and guaranteeing communication equipment security.
Description
Technical field
A kind of elevator automatic emergency telecommunication port circulator of the present invention and partition method; what relate to is elevator automatic emergency rescue system, communication and information automation technical field; be a kind of hardware circuit of protecting serial communication interface equipment, realize the technology of electrical isolation between the communication port of elevator automatic emergency rescue system.
Background technology
Isolated communication both sides' communication port not often in the telecommunication of current elevator automatic emergency rescue system, in the time that a square end mouth damages, as forceful electric power punctures, short circuit, or when communicating pair reference potential different and produce common mode current on communication line time, often cause the damage of the opposing party's port, and fault easily spreads, even endanger whole system, cause heavy losses, and existing port circulator often need to provide driving isolation device required power supply from outside, increase the complexity of system, the sometimes port isolation modification scheme of such communication system or even infeasible, thereby need to design one and do not need extra line, do not need externally fed, communication isolator with existing interface compatibility, realize the isolation of elevator automatic emergency rescue system communication port, improve the safety and reliability of whole system.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, technical problem to be solved is to provide a kind of elevator automatic emergency rescue system that is applied to can carry out insulation blocking and without a kind of elevator automatic emergency telecommunication port circulator and partition method that power supply is provided from outside to the serial communication interface of two ends data communications equipment.
1. to achieve these goals, adopt following technology: comprise voltage transformation module, the large assembly of isolating device two totally two groups interior, it is characterized in that: the transmit port of the communication terminal armatine of isolator is connected to signal isolator and voltage generator simultaneously, the output of signal isolator is connected to the receiving port of PORT COM second, the transmit port of PORT COM second is connected to signal isolator and voltage generator simultaneously, the output of signal isolator is connected to the receiving port of communication terminal armatine, the positive negative output voltage of voltage generator is connected to the power supply input of signal isolator, the positive negative output voltage of voltage generator is connected to the power supply input of signal isolator,
Its partition method is: utilize in the unbalanced serial communication that elevator automatic emergency rescue system generally uses, all bi-level digital signals represent in the mode of positive level and negative level, signal on transmission and reception line does not return the feature of zero-bit, from transmit port power taking, and it conversion is produced to generating positive and negative voltage drive magnetic lotus root formula or optical coupling type isolator, transmitting terminal from the another port non-electrical signal of coming that is coupled is converted to level signal, received by this receiving port, another port uses the same method and receives the signal from the port;
Described signal isolator can be magnetic coupling formula or optical coupling type isolator.
Implementing after this technology obviously advantage and effect is: compared with prior art; because isolator is connected with transmission, reception, these three ports of signal ground of two ends communication port; intactly transmit the signal of communication of intercommunication port; and in this process, realize the electrical isolation of intercommunication port; effectively protect communication port; improve the reliability of communication, ensured the safety of communication equipment.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Wherein, 1-communication terminal armatine, 2-voltage generator, 3-signal isolator, 4-signal isolator, 5-voltage generator, 6-communication port second.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
See accompanying drawing 1, the transmit port that the output that the transmit port of the communication terminal armatine 1 of isolator is connected to signal isolator 3 and voltage generator 2, signal isolator 3 is simultaneously connected to the receiving port of PORT COM second 6, PORT COM second 6 is connected to signal isolator 4 and voltage generator 5 simultaneously, and the positive negative output voltage that the positive negative output voltage that the output of signal isolator 4 is connected to receiving port, the voltage generator 2 of communication terminal armatine 1 is connected to the power supply input of signal isolator 4, voltage generator 5 is connected to the power supply input of signal isolator 3.
See accompanying drawing 1, the positive level signal that communication ends armatine 1 sends is delivered to the reception pin of communication port second 6 by signal isolator 4, the negative level signal that communication ends armatine 1 sends is delivered to the reception pin of communication port second 6 by signal isolator 4, the positive level signal that communication port second 6 is sent is delivered to the reception pin of communication ends armatine 1 by signal isolator 4, the negative level signal that communication port second 6 is sent is delivered to the reception pin of communication ends armatine 1 by signal isolator 4, bi-level digital signals all in non-equilibrium serial interface communication represent in the mode of positive level and negative level, the signal sending and receive on line does not return zero-bit, so the signal that port first 1 is sent can be considered an alternating voltage that contains DC component, obtain a direct voltage through voltage generator 2 rectifying and wave-filterings, supply with signal isolator 3, the generating positive and negative voltage that voltage generator 2 produces drives the signal isolator 3 of one group of series connection and signal isolator 4 to change from the transmission pin of communication port second 6 signal of coming that is coupled, the signal that communication port second 6 is sent also can be considered a kind of alternating voltage that contains DC component, obtain a direct voltage through voltage generator 5 rectifying and wave-filterings, service voltage generator 5, the signal isolator conversion that the generating positive and negative voltage that voltage generator 5 produces drives second group of series connection is from the transmission pin of communication armatine 1 signal of coming that is coupled, transmission and the isolation features of signal are realized.Can be applied in easily in all elevator automatic emergencies with non-equilibrium mode signal transmission rescue system communication interface equipment interconnected.
Claims (2)
1. an elevator automatic emergency telecommunication port circulator and partition method, comprise voltage transformation module, the large assembly of isolating device two totally two groups interior, it is characterized in that: the transmit port of the communication terminal armatine of isolator is connected to signal isolator and voltage generator simultaneously, the output of signal isolator is connected to the receiving port of PORT COM second, the transmit port of PORT COM second is connected to signal isolator and voltage generator simultaneously, the output of signal isolator is connected to the receiving port of communication terminal armatine, the positive negative output voltage of voltage generator is connected to the power supply input of signal isolator, the positive negative output voltage of voltage generator is connected to the power supply input of signal isolator,
Its partition method is: utilize in the unbalanced serial communication that elevator automatic emergency rescue system generally uses, all bi-level digital signals represent in the mode of positive level and negative level, signal on transmission and reception line does not return the feature of zero-bit, from transmit port power taking, and it conversion is produced to generating positive and negative voltage drive magnetic lotus root formula or optical coupling type isolator, transmitting terminal from the another port non-electrical signal of coming that is coupled is converted to level signal, received by this receiving port, another port uses the same method and receives the signal from the port.
2. a kind of elevator automatic emergency telecommunication port circulator according to claim 1 and partition method, is characterized in that: described signal isolator can be magnetic lotus root formula or optical coupling type isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182059.2A CN104168221A (en) | 2013-05-16 | 2013-05-16 | Elevator automatic emergency remote communication port isolator and isolation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182059.2A CN104168221A (en) | 2013-05-16 | 2013-05-16 | Elevator automatic emergency remote communication port isolator and isolation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104168221A true CN104168221A (en) | 2014-11-26 |
Family
ID=51911854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310182059.2A Pending CN104168221A (en) | 2013-05-16 | 2013-05-16 | Elevator automatic emergency remote communication port isolator and isolation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104168221A (en) |
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2013
- 2013-05-16 CN CN201310182059.2A patent/CN104168221A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |