CN219018837U - Photoelectric port automatic identification device and Ethernet equipment - Google Patents

Abstract

The utility model discloses an automatic photoelectric port identification device and Ethernet equipment, wherein the automatic photoelectric port identification device comprises a first port, a signal acquisition circuit and a main control circuit; the signal acquisition circuit is connected with the first port, the input end of the main control circuit is connected with the signal acquisition circuit, and the output end of the main control circuit is connected with the first port. The utility model collects the signal output by the first port through the signal collection circuit and outputs the corresponding collected signal to the main control circuit, and the main control circuit outputs the optical signal or the electric signal to the first port according to the collected signal so as to meet the requirement of flexible conversion of the optical port or the electric port, and reduce the cost.

Description

Photoelectric port automatic identification device and Ethernet equipment

Technical Field

The present utility model relates to the field of ethernet communications technologies, and in particular, to an automatic identification device for a photoelectric port and an ethernet device.

Background

At present, ethernet communication devices are widely used in industrial sites. In different application scenarios, the requirements on the number of ports and the port morphology of the equipment are different, a plurality of optical ports are needed, and a plurality of electric ports are needed, especially a 1*9 optical module is needed, so that the module has low cost and wider application range. For some switch chips, the port configuration may be configured as either an electrical or optical port via registers. However, the ports of the existing switch device are cured, either into an electrical port shape or into an optical port shape, so that the requirements of flexible switching of the electrical port or the optical port shape cannot be met, and the temporary redesign and development of the product is complex and has high cost.

Disclosure of Invention

The utility model mainly aims to provide an automatic photoelectric port identification device, which aims to solve the problem that the port solidification of the traditional switch equipment cannot meet the flexible conversion requirement of the electric port or the optical port.

In order to achieve the above object, the present utility model provides an automatic identification device for a photo-electric port, comprising:

the PCB is provided with a first port, and the first port is used for being connected with an optical module or a network connector; when the first port is accessed to the optical module, an SD signal is output;

the signal acquisition circuit is arranged on the PCB, is connected with the first port, and is used for acquiring signals output by the first port and outputting corresponding acquisition signals;

the main control circuit is arranged on the PCB, the input end of the main control circuit is connected with the signal acquisition circuit, the output end of the main control circuit is connected with the first port, and the main control circuit is used for outputting optical signals or electric signals to the first port according to the acquisition signals.

In one embodiment, the automatic identification device for a photo port comprises:

the signal coupling circuit is arranged between the main control circuit and the first port in series and is used for coupling an optical signal or an electrical signal output by the main control circuit to the optical module or the network connector.

In an embodiment, the signal coupling circuit is a network transformer, one end of the network transformer is connected with the main control circuit, and the other end of the network transformer is connected with the first port.

In an embodiment, the signal coupling circuit is a capacitor, one end of the capacitor is connected with the main control circuit, and the other end of the capacitor is connected with the first port.

In an embodiment, the signal acquisition circuit includes a switch tube, a first resistor, a second resistor, a controlled end of the switch tube is connected with the first port, a first end of the switch tube is connected with a power supply, a second end of the switch tube is connected with one end of the first resistor, a second end of the switch tube is also connected with one end of the second resistor, the other end of the first resistor is grounded, and the other end of the second resistor is connected with the main control circuit.

In an embodiment, the switch tube is a PNP triode, a controlled end of the PNP triode is connected with the first port, an input end of the PNP triode is connected with the power supply, an output end of the PNP triode is connected with one end of the first resistor, and an output end of the PNP triode is also connected with one end of the second resistor.

In one embodiment, the automatic identification device for a photo port comprises:

the display circuit is connected with the main control circuit and is used for displaying the mode of the first port when working;

the main control circuit is also used for controlling the display circuit to work according to the acquisition signal.

In an embodiment, the display circuit is an LED display screen.

In an embodiment, the master circuit comprises:

the processor is connected with the signal acquisition circuit, and is used for accessing the acquisition signal and outputting a port configuration signal according to the acquisition signal;

the register is connected with the processor and is used for accessing the port configuration signal and registering;

the physical layer module is connected with the register and the first port, and is used for accessing the port configuration signal, sending the optical signal or the electrical signal to the optical module or the network connector according to the port configuration signal, and receiving the optical signal or the electrical signal;

and the MAC module is interconnected with the physical layer module and the processor and is used for communicating between the processor and the physical layer module.

The utility model also provides an Ethernet device which comprises the automatic identification device for the photoelectric port.

According to the technical scheme, the signal acquisition circuit acquires the signal output by the first port and outputs the corresponding acquisition signal to the main control circuit, and the main control circuit outputs the optical signal or the electric signal to the first port according to the acquisition signal so as to meet the requirement of flexible conversion of the optical port or the electric port, and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall block diagram of an embodiment of an automatic identification device for a photovoltaic port according to the present utility model;

FIG. 2 is a schematic structural view of another embodiment of the automatic identification device for a photo-aperture of the present utility model;

fig. 3 is a circuit diagram of an embodiment of a signal acquisition circuit of the automatic identification device for a photo-aperture of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	First port	50	Display circuit
20	Signal acquisition circuit	R1	First resistor
				30	Main control circuit	R2	Second resistor
40	Signal coupling circuit	Q1	Switch tube

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

At present, ethernet communication devices are widely used in industrial sites. In different application scenarios, the requirements on the number of ports and the port morphology of the equipment are different, a plurality of optical ports are needed, and a plurality of electric ports are needed, especially a 1*9 optical module is needed, so that the module has low cost and wider application range. For some switch chips, the port configuration may be configured as either an electrical or optical port via registers. However, the ports of the existing switch device are cured, either into an electrical port shape or into an optical port shape, so that the requirements of flexible switching of the electrical port or the optical port shape cannot be met, and the temporary redesign and development of the product is complex and has high cost.

In order to solve the above problems, the present utility model provides an automatic identification device for a photoelectric port.

Referring to fig. 1 and 3, in an embodiment of the present utility model, the automatic identification device for a photo-aperture includes:

the PCB is provided with a first port 10, and the first port 10 is used for being connected with an optical module or a network connector; the first port 10 outputs an SD signal when accessing the optical module;

the signal acquisition circuit 20 is arranged on the PCB, the signal acquisition circuit 20 is connected with the first port 10, and the signal acquisition circuit 20 is used for acquiring signals output by the first port 10 and outputting corresponding acquisition signals;

the main control circuit 30 is arranged on the PCB, the input end of the main control circuit 30 is connected with the signal acquisition circuit 20, the output end of the main control circuit 30 is connected with the first port 10, and the main control circuit 30 is used for outputting optical signals or electric signals to the first port 10 according to the acquisition signals.

The signal acquisition circuit 20 may be implemented by any signal acquisition circuit 20 capable of performing signal acquisition, for example, a transistor or a switching tube Q1 such as a MOS transistor. In this embodiment, the signal acquisition circuit 20 includes a switching tube Q1, a first resistor R1, and a second resistor R2, where a controlled end of the switching tube Q1 is connected to the first port 10, a first end of the switching tube Q1 is connected to a power supply, a second end of the switching tube Q1 is connected to one end of the first resistor R1, a second end of the switching tube Q1 is further connected to one end of the second resistor R2, another end of the first resistor R1 is grounded, and another end of the second resistor R2 is connected to the main control circuit 30. The switching tube Q1 is a PNP triode, the controlled end of the PNP triode is connected with the first port 10, the input end of the PNP triode is connected with a power supply, the output end of the PNP triode is connected with one end of the first resistor R1, and the output end of the PNP triode is also connected with one end of the second resistor R2. The voltage value of the SD signal output from the optical module is about 1.5V, and the main control circuit 30 cannot recognize the SD signal. It can be understood that, after the ethernet device is powered on, when the first port 10 is connected to the optical module, the optical module outputs an SD signal to the controlled end of the PNP triode to turn on the PNP triode, and since the collector of the PNP triode is connected to the high-level VCC end, that is, outputs a high-level acquisition signal to the main control circuit 30, the main control circuit 30 outputs an optical signal to the first port 10 according to the high-level acquisition signal, that is, outputs the optical signal to the optical module to complete the configuration of the optical port mode; when the first port 10 is connected to the network connector, no SD signal is output from the first port 10, and the PNP triode is in an off state at this time, and since the emitter of the PNP triode is connected to the low level GND terminal through the first resistor R1, that is, outputs a low level acquisition signal to the main control circuit 30, the main control circuit 30 outputs an electrical signal to the first port 10 according to the low level acquisition signal, that is, outputs the electrical signal to the network connector, so as to complete the configuration of the optical port mode, thereby implementing the automatic identification configuration of the optical port and the electrical port of the ethernet device. In this embodiment, the triode converts the signal level which cannot be identified by the main control circuit 30 into the easily-identified high-low level acquisition signal, so that the cost is greatly reduced.

The main control circuit 30 may be implemented by a main controller, such as an MCU, a DSP (Digital Signal Process, digital signal processing Chip), an FPGA (Field Programmable Gate Array, programmable gate array Chip), an SOC (System On Chip), or the like. In this embodiment, the main control circuit 30 is implemented by using an ethernet SOC chip, where the ethernet SOC chip includes a processor, a register, a MAC module, and a physical layer module, where a GPIO port of the processor is connected to an output end of the signal acquisition circuit 20, the processor is further interconnected with the register and the MAC module, the physical layer module is interconnected with the register and the MAC module, and the physical layer module is further connected to the first port 10; specifically, when the processor reads the acquisition signal with high level, the processor modifies the register information to configure the port as an optical port mode, and the physical layer module outputs an optical signal to the optical module to realize the configuration of the Ethernet optical port; when the processor reads the acquisition signal with low level, the register information is modified to configure the port into an electric port mode, and the physical layer module outputs an electric signal to the network connector so as to realize the configuration of the Ethernet electric port, thereby realizing the automatic identification and configuration of the Ethernet optical port electric port.

According to the technical scheme of the utility model, the signal acquisition circuit 20 acquires the signal output by the first port 10 and outputs the corresponding acquired signal to the main control circuit 30, and the main control circuit 30 outputs the optical signal or the electric signal to the first port 10 according to the acquired signal so as to meet the requirement of flexible conversion of the optical port or the electric port, and reduce the cost. Compared with the existing ethernet device, the signal acquisition circuit 20 acquires the corresponding acquisition signal of the signal output of the first port 10, and the main control circuit 30 outputs the optical signal or the electrical signal to the first port 10 according to the acquisition signal, so that different port requirements can be met without modifying the bill of materials, and the method is simpler and more convenient.

Referring to fig. 2, in an embodiment, the automatic identification device for a photo port includes:

the signal coupling circuit 40 is disposed in series between the main control circuit 30 and the first port 10, and the signal coupling circuit 40 is configured to couple an optical signal or an electrical signal output by the main control circuit 30 to the optical module or the network connector.

In this embodiment, the signal coupling circuit 40 may be implemented by any signal coupling circuit 40 that can electrically connect the main control circuit 30 with an optical module or a network connector, for example, a network transformer, a capacitor, or the like. Specifically, one end of a network transformer is connected with the main control circuit 30, and the other end of the network transformer is connected with the first port 10; the network transformer can filter the electric signal or the optical signal output by the physical layer module in the main control circuit 30 by using the coil coupling of differential mode coupling to enhance the signal, and is coupled to the other end of the connection network cable through the conversion of the electromagnetic field, so that the network cable and the physical layer module are not physically connected to transfer the signal, the direct current component in the signal is blocked, and the data can be transferred in devices with different 0V levels. One end of a capacitor is connected with the main control circuit 30, and the other end of the capacitor is connected with the first port 10; the capacitor is implemented by a capacitor with a coupling function, and the electric signal or the optical signal output by the physical layer module in the main control circuit 30 is input to the first port 10 as lossless as possible. In this embodiment, the main control circuit 30 is electrically connected with the optical module or the network connector by adopting the signal coupling circuit 40 such as a network transformer and a capacitor, so that an optical signal or an electrical signal does not need an additional coupling module, thereby greatly reducing the cost.

Referring to fig. 2, in an embodiment, the automatic identification device for a photo port includes:

the display circuit 50 is connected with the main control circuit 30, and the display circuit 50 is used for displaying the mode of the first port 10 when in operation;

the main control circuit 30 is further configured to control the display circuit 50 to work according to the acquisition signal.

In this embodiment, the display circuit 50 may be implemented by using any display circuit 50 capable of displaying the mode of the first port 10, for example, an LED display screen or a liquid crystal screen. The display circuit 50 in this embodiment is preferably an LED display. It can be understood that the MAC module in the main control circuit 30 may control the LED display screen to work according to the acquisition signal, when the first port 10 is connected to the optical module, the SD signal is output to the signal acquisition circuit 20, the signal acquisition circuit 20 outputs a high-level acquisition signal to the main control circuit 30, and the main control circuit 30 outputs an optical signal to the first port 10 and simultaneously outputs a display control signal to the LED display screen to control the LED display screen to display that the current port mode is the optical port mode; when the first port 10 is connected to the network connector, no signal is output, the signal acquisition circuit 20 outputs a low-level acquisition signal to the main control circuit 30, and the main control circuit 30 outputs an electric signal to the first port 10 and simultaneously outputs a display control signal to the LED display screen to control the LED display screen to display that the current port mode is the electric port mode, so that a user can visually know the current port mode.

Referring to fig. 2, in an embodiment, the master circuit 30 includes:

the processor is connected with the signal acquisition circuit, and is used for accessing the acquisition signal and outputting a port configuration signal according to the acquisition signal;

the register is connected with the processor and is used for accessing the port configuration signal and registering;

the physical layer module is interconnected with the register and the first port 10, and is used for accessing the port configuration signal, sending the optical signal or the electrical signal to the optical module or the network connector according to the port configuration signal, and receiving the optical signal or the electrical signal;

and the MAC module is interconnected with the physical layer module and the processor and is used for communicating between the processor and the physical layer module.

In this embodiment, the processor accesses the collection signal output by the signal collection circuit 20, when the processor reads the collection signal with a high level, outputs the optical port configuration signal to the register to register, and meanwhile, the register outputs the optical port configuration signal to the physical layer module, and the physical layer module sends the optical signal to the optical module after accessing the optical port configuration signal, thereby realizing the configuration of the ethernet optical port; the processor is connected with the acquisition signal output by the signal acquisition circuit 20, when the processor reads the acquisition signal with low level, the processor outputs an electric port configuration signal to the register for registering, meanwhile, the register outputs the electric port configuration signal to the physical layer module, and the physical layer module sends an electric signal to the network connector after being connected with the electric port configuration signal, so that the configuration of the Ethernet electric port is realized; thereby realizing the automatic identification and configuration of the Ethernet optical port.

The utility model is explained by combining the above embodiments, by adopting and modifying the level of the SD signal output by the optical module, the level of the SD signal is modified into the high-low level signal which can be identified by the processor, the processor reads the modified high-low level information, and the port can be configured into an optical port or an electrical port by modifying the register information, so as to output the optical signal or the electrical signal, thereby meeting the configuration of various port requirements.

Referring to fig. 2, for the switch chip supporting port configurable (configurable into an optical port or an electrical port through a register), according to the requirement of the form of a client port, a 1*9 optical module or an RJ45 connector is installed on a certain port of the hardware PCB board, and if the RJ45 connector is installed on the port, no SD signal is output; if the port is provided with the 1*9 optical module, the optical module outputs an SD signal, the level of the SD signal is about 1.5V, the triode is conducted at the moment, the collector electrode of the triode is connected to the high-level VCC end, the triode outputs a high level and is output to the processor through the second resistor R2, the processor reads the high level, the register information is modified, the port is configured into an optical port mode, and the optical signal is output. If the port is provided with an RJ45 connector, no SD signal is output, at the moment, the triode Q1 is cut off, the triode outputs a low level because the first resistor R1 is connected to a low level GND end, the triode is output to a processor through the second resistor R2, the processor reads the low level, and the port is configured into an electric port mode by modifying register information and outputs an electric signal, so that the automatic identification and configuration of an Ethernet optical port electric port are realized.

In summary, the automatic identification device for the optical port changes the signal level which cannot be identified by the processor into the high-low level signal which can be identified by the processor by modifying the SD signal output by the optical module, so that whether the port is provided with the optical interface or the electrical interface can be automatically identified; the PCB compatibility is improved, the bill of materials (the pull-up resistor or the pull-down resistor is installed) does not need to be changed according to the port requirement by the same PCB, and the production, management and stock cost is effectively reduced.

The utility model also provides an Ethernet device, which comprises the automatic identification device of the photoelectric port; the specific structure of the automatic identification device for the photoelectric port refers to the above embodiments, and because the ethernet device adopts all the technical solutions of all the embodiments, the automatic identification device at least has all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An automatic identification device for a photoelectric port, which is characterized by comprising:

the PCB is provided with a first port, and the first port is used for being connected with an optical module or a network connector; when the first port is accessed to the optical module, an SD signal is output;

the signal acquisition circuit is arranged on the PCB, is connected with the first port, and is used for acquiring signals output by the first port and outputting corresponding acquisition signals;

the main control circuit is arranged on the PCB, the input end of the main control circuit is connected with the signal acquisition circuit, the output end of the main control circuit is connected with the first port, and the main control circuit is used for outputting optical signals or electric signals to the first port according to the acquisition signals.

2. The automatic electro-optical port identification apparatus of claim 1, wherein the automatic electro-optical port identification apparatus comprises:

the signal coupling circuit is arranged between the main control circuit and the first port in series and is used for coupling an optical signal or an electrical signal output by the main control circuit to the optical module or the network connector.

3. The automatic identification device of claim 2 wherein the signal coupling circuit is a network transformer, one end of the network transformer is connected to the master control circuit, and the other end of the network transformer is connected to the first port.

4. The automatic identification device of an optical port as claimed in claim 2, wherein the signal coupling circuit is a capacitor, one end of the capacitor is connected to the main control circuit, and the other end of the capacitor is connected to the first port.

5. The automatic identification device of an optical port according to claim 1, wherein the signal acquisition circuit comprises a switching tube, a first resistor and a second resistor, a controlled end of the switching tube is connected with the first port, a first end of the switching tube is connected with a power supply, a second end of the switching tube is connected with one end of the first resistor, a second end of the switching tube is also connected with one end of the second resistor, the other end of the first resistor is grounded, and the other end of the second resistor is connected with the main control circuit.

6. The automatic identification device of the photoelectric port of claim 5, wherein the switching tube is a PNP triode, a controlled end of the PNP triode is connected with the first port, an input end of the PNP triode is connected with a power supply, an output end of the PNP triode is connected with one end of the first resistor, and an output end of the PNP triode is also connected with one end of the second resistor.

7. The automatic electro-optical port identification apparatus of claim 1, wherein the automatic electro-optical port identification apparatus comprises:

the display circuit is connected with the main control circuit and is used for displaying the mode of the first port when working;

the main control circuit is also used for controlling the display circuit to work according to the acquisition signal.

8. The automatic identification device of claim 7 wherein the display circuit is an LED display screen.

9. The automatic identification device of an optical port of claim 1 wherein the master control circuit comprises:

the processor is connected with the signal acquisition circuit, and is used for accessing the acquisition signal and outputting a port configuration signal according to the acquisition signal;

the register is connected with the processor and is used for accessing the port configuration signal and registering;

the physical layer module is connected with the register and the first port, and is used for accessing the port configuration signal, sending the optical signal or the electrical signal to the optical module or the network connector according to the port configuration signal, and receiving the optical signal or the electrical signal;

and the MAC module is interconnected with the physical layer module and the processor and is used for communicating between the processor and the physical layer module.

10. An ethernet device, characterized in that the ethernet device comprises an automatic optical port identification device according to any of claims 1-8.

Images