CN212875796U - Railway power line carrier blind electricity taking blind transmission communication-based device - Google Patents
Railway power line carrier blind electricity taking blind transmission communication-based device Download PDFInfo
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- CN212875796U CN212875796U CN202021269133.6U CN202021269133U CN212875796U CN 212875796 U CN212875796 U CN 212875796U CN 202021269133 U CN202021269133 U CN 202021269133U CN 212875796 U CN212875796 U CN 212875796U
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Abstract
The utility model discloses a device based on blind biography communication of electricity is got to railway power line carrier blind, the input and the external power line of power and signal separation module are connected, the output of power and signal separation module is connected with voltage conversion module's input, voltage conversion module's output and the input of filter circuit module and signal coupling module are connected, signal coupling module's output with the output of filter circuit module all is connected with the input of PLC power line carrier module, the output and the output interface connection of PLC power line carrier module, PLC power line carrier module carries the module for embedded power line. The utility model discloses very big reduction required cost and shared space only need a device can solve the problem for five way signal lamp power supplies to make the product of production more convenient when using and maintaining.
Description
Technical Field
The utility model belongs to the technical field of the power line carrier communication technique and specifically relates to a device based on blind biography communication of electricity is got to railway power line carrier blind.
Background
The transmission of the power line carrier of the currently known railway lighting device has five power lines, five signal lamps on the power line carrier are respectively controlled, only one of the signal lamps works normally under the normal working state, when a certain power line works normally and can normally transmit signals and 220V alternating current, the signal lamp connected with the power line works normally, and information is transmitted to people by controlling the states of the five signal lamps. When a certain path fails to transmit signals normally, one path of signal lamps cannot work normally, and at the moment, five paths of signal lamps are in different states. And can judge whether the signal transmission has faults or not. Because the signal lamp which needs to work each time can not be fixed and is switched back and forth among the five signal lamps, it can not be determined which signal is transmitted in each time, and the five signal lamps can work when needed. In addition, the signal lamp lighting circuit adopts a centralized power supply system, a signal building relay room supplies an alternating current 220V lighting power supply, the signal bulbs adopt low voltage 12V, and therefore, a signal transformer is respectively arranged corresponding to the signal bulbs, and each bulb of the train signal machine is provided with a lighting unit with a main and auxiliary filament conversion function. The disadvantage is obvious, firstly, that each of the five signal lamps needs to be provided with a transformer, and a device is needed for controlling the signal transmission of the signal lamp and supplying power to the signal lamp. Thus, not only a large amount of space is occupied, but also the cost is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a device based on blind power blind pass communication is got to railway power line carrier wave.
The technical scheme of the utility model is that: the utility model provides a device based on blind communication of getting of railway power line carrier, includes power and signal separation module, voltage conversion module, filter circuit module, signal coupling module, PLC power line carrier module and output interface, the input and the external power line of power and signal separation module are connected, the output of power and signal separation module is connected with voltage conversion module's input, voltage conversion module's output and filter circuit module's input and signal coupling module's input are connected, signal coupling module's output with the output of filter circuit module all is connected with PLC power line carrier module's input, PLC power line carrier module's output and output interface connection, PLC power line carrier module carries the module for embedded power line.
Preferably, a power panel is arranged on the power supply and signal separation module, the input end of the power panel is connected with an external power line, and the output end of the power panel is connected with the input end of the voltage conversion module.
Preferably, the voltage conversion module includes a transformer, a rectifier bridge and a DC-DC chip, a primary side of the transformer is connected to the output end of the power board, a secondary side of the transformer is connected to the input end of the rectifier bridge, and an output end of the rectifier bridge is connected to the input end of the DC-DC chip.
Preferably, the filter circuit module is a passive filter circuit, an input end of the filter circuit module is connected with an output end of the DC-DC chip, and an output end of the filter circuit module is connected with an input end of the PLC power carrier module.
Preferably, the output interface comprises a direct current power supply output interface and a serial data output and input interface, the output end of the PLC power carrier module is respectively connected with the input end of the direct current power supply output interface and the input end of the serial data output and input interface, the output end of the direct current power supply output interface is connected with an external signal, and the output end signal of the serial data output and input interface is fed back to the PLC power carrier module.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) five external power lines are respectively connected to one end of a transformer, 220V alternating current can be converted into 12V alternating current through the transformer, and the 12V alternating current can be converted into 12V direct current after a series of processing, so that the requirement of supplying power to a PLC power carrier module and a signal lamp is met. In addition, the transmitted signals are transmitted to the other end of the PLC power carrier module and the other end of the railway in a signal coupling mode through the CBB capacitor, one device controls the transmission of five signals at the same time and supplies power to the signal lamps, the required cost and the occupied space are greatly reduced, the problems that the power line carrier signal transmission which can be solved by the five devices and the 5-way signal lamp supply are solved, and therefore the produced product is more convenient to use and maintain.
Drawings
Fig. 1 is a schematic block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, a device for blind power-taking communication based on a railway power line carrier comprises a power supply and signal separation module, a voltage conversion module, a filter circuit module, a signal coupling module, a PLC power carrier module, a dc power supply output interface and a serial data output and input interface.
The input end of the power supply and signal separation module is connected with an external power line, the power supply and signal separation module is provided with a power supply board, the input end of the power supply board is connected with the external power line, the output end of the power supply board is connected with the input end of the voltage conversion module, the output end of the voltage conversion module is connected with the input end of the filter circuit module and the input end of the signal coupling module, the output end of the signal coupling module and the output end of the filter circuit module are both connected with the input end of the PLC power carrier module, the output end and the output interface of the PLC power carrier module are connected, and the PLC power carrier module.
The voltage conversion module comprises a transformer, a rectifier bridge and a DC-DC chip, the primary side of the transformer is connected with the output end of the power panel, the secondary side of the transformer is connected with the input end of the rectifier bridge, the output end of the rectifier bridge is connected with the input end of the DC-DC chip, the output end of the DC-DC chip is connected with the input end of the filter circuit module, the output end of the filter circuit module is connected with the input end of the PLC power carrier module, and the filter circuit module is a passive filter circuit and is simple in structure and easy to design.
The output interface comprises a direct current power supply output interface and a serial port data output and input interface, the output end of the PLC power carrier module is respectively connected with the input end of the direct current power supply output interface and the input end of the serial port data output and input interface, the output end of the direct current power supply output interface is connected with an external signal, and the output end signal of the serial port data output and input interface is fed back to the PLC power carrier module.
As shown in fig. 2, five power lines are connected to one side of a square power panel of about 11cm × 13cm, i.e., AC1-AC5 in the figure, and then the 220V AC power transmitted by the power lines is converted into 12V power output (i.e., S1 in the figure) after passing through a transformer T1, and the transmitted signals are output again (i.e., L and N in the figure) after being coupled through CBB capacitors (C14-C18), and only one of the five power lines is normally operated, i.e., only one of the five power lines is in signal and power transmission at the same time in AC1-AC 5. Meanwhile, a PLC embedded power line carrier module with the size of about 5cm multiplied by 6.5cm multiplied by 2cm can be inserted into a power panel, wherein the PLC embedded power line carrier module adopts the technical principle of multi-carrier modulation orthogonal frequency division multiplexing, high-speed and long-distance serial transmission of parallel data is carried out through frequency division multiplexing, a data transmission module of a power line carrier communication mode is realized, 5 paths of signals are respectively transmitted to 5 pins on the primary side of a transformer, 5 paths of 220V (L1-L5 in the figure) alternating current input share the same ground (N), the secondary side of the transformer is power output (S1), and the transformer has the main functions of: the 220V alternating current is converted into 12V alternating current so as to supply power to the PLC embedded power line module and the signal lamp on the railway. Under the normal working state, when one path of signal is transmitted to the primary side of the transformer, no matter which path of signal in the 5 paths of signals is transmitted after passing through the primary side of the transformer, the secondary side of the transformer has AC 12V output. The signals are transmitted to the PLC embedded power line module after being coupled through the CBB capacitor (C14-C18) and transmitted to the other end of the railway after passing through the PLC embedded power line module, so that the transmission among the lighting device signals is completed. Power output is behind rectifier bridge (U2), become 12V direct current by alternating current, pass through DC-DC (U1) chip again, thereby output 12V voltage carries module and signal lamp power supply for PLC embedded power line, make PLC embedded power line carry module and signal lamp can be normal carry out work, very big required cost of reduction and shared space, solve the problem of power line carrier signal transmission that originally need five devices just can solve and give the problem of 5 way signal lamp power supplies, thereby make the product of producing more convenient when using and maintaining.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (5)
1. The utility model provides a device based on blind power of railway power line carrier blind access communication which characterized in that: including power and signal separation module, voltage conversion module, filter circuit module, signal coupling module, PLC power line carrier module and output interface, the power is connected with the input and the external power line of signal separation module, the output of power and signal separation module is connected with the input of voltage conversion module, the output of voltage conversion module is connected with the input of filter circuit module and the input of signal coupling module, the output of signal coupling module with the output of filter circuit module all is connected with the input of PLC power line carrier module, the output and the output interface connection of PLC power line carrier module, the module is carried to PLC power line carrier module for embedded power line.
2. The device based on blind power transmission communication of railway power line carrier according to claim 1, characterized in that: the power supply and signal separation module is provided with a power supply board, the input end of the power supply board is connected with an external power line, and the output end of the power supply board is connected with the input end of the voltage conversion module.
3. The device based on blind power transmission communication of railway power line carrier according to claim 2, characterized in that: the voltage conversion module comprises a transformer, a rectifier bridge and a DC-DC chip, wherein the primary side of the transformer is connected with the output end of the power panel, the secondary side of the transformer is connected with the input end of the rectifier bridge, and the output end of the rectifier bridge is connected with the input end of the DC-DC chip.
4. The device based on blind power transmission communication of railway power line carrier according to claim 1, characterized in that: the filter circuit module is a passive filter circuit, the input end of the filter circuit module is connected with the output end of the DC-DC chip, and the output end of the filter circuit module is connected with the input end of the PLC power carrier module.
5. The device based on blind power transmission communication of railway power line carrier according to claim 1, characterized in that: the output interface comprises a direct current power supply output interface and a serial port data output and input interface, the output end of the PLC power carrier module is respectively connected with the input end of the direct current power supply output interface and the input end of the serial port data output and input interface, the output end of the direct current power supply output interface is connected with an external signal, and the output end signal of the serial port data output and input interface is fed back to the PLC power carrier module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021269133.6U CN212875796U (en) | 2020-07-02 | 2020-07-02 | Railway power line carrier blind electricity taking blind transmission communication-based device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021269133.6U CN212875796U (en) | 2020-07-02 | 2020-07-02 | Railway power line carrier blind electricity taking blind transmission communication-based device |
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| Publication Number | Publication Date |
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| CN212875796U true CN212875796U (en) | 2021-04-02 |
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| CN202021269133.6U Active CN212875796U (en) | 2020-07-02 | 2020-07-02 | Railway power line carrier blind electricity taking blind transmission communication-based device |
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| CN (1) | CN212875796U (en) |
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