CN210839620U - Vehicle-mounted Ethernet signal relay equipment - Google Patents
Vehicle-mounted Ethernet signal relay equipment Download PDFInfo
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- CN210839620U CN210839620U CN201922081339.XU CN201922081339U CN210839620U CN 210839620 U CN210839620 U CN 210839620U CN 201922081339 U CN201922081339 U CN 201922081339U CN 210839620 U CN210839620 U CN 210839620U
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Abstract
The application discloses on-vehicle ethernet signal relay equipment. The first end of a first vehicle-mounted Ethernet physical chip of the relay equipment is connected with a first vehicle-mounted Ethernet connector outside the relay equipment through a first isolation circuit; the first end of the second vehicle-mounted Ethernet physical chip is connected with a second vehicle-mounted Ethernet connector outside the relay equipment through a second isolation circuit; the second end of the first vehicle-mounted Ethernet physical chip and the second end of the second vehicle-mounted Ethernet physical chip are interacted through a vehicle-mounted Ethernet; the input end of the power supply circuit is connected with a data line power supply circuit or a standby power supply, and the output end of the power supply circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor; the microprocessor is connected with the first vehicle-mounted Ethernet physical chip and the second vehicle-mounted Ethernet physical chip. The vehicle-mounted Ethernet signal attenuated due to long-distance transmission can be relayed by the relay equipment, and the transmission distance of the vehicle-mounted Ethernet signal is prolonged.
Description
Technical Field
The application relates to the technical field of vehicle-mounted Ethernet, in particular to vehicle-mounted Ethernet signal relay equipment.
Background
With the development of the vehicle-mounted network, the demand of the bus in the vehicle for the bandwidth is more and more strong, and the vehicle-mounted ethernet is also gradually an important transmission bus in the vehicle. The vehicle-mounted Ethernet finishes the bidirectional transmission of data by using a pair of unshielded twisted pair wires, the transmission speed is 100Mbps/1000Mbps, and the weight and the cost of a vehicle body wire harness are greatly reduced.
In order to meet the requirements of vehicle-mounted applications on EMC (Electro Magnetic Compatibility), the vehicle-mounted ethernet optimizes the physical layer design for the vehicle-mounted use environment, and greatly reduces the driving capability of signals (compared with the standard ethernet), so that the maximum transmission distance of the vehicle-mounted ethernet is only 15 meters. Meanwhile, the application range of the vehicle-mounted Ethernet is greatly reduced due to the characteristic of short transmission distance, the vehicle-mounted Ethernet can only be applied to passenger vehicles and small vehicles generally, is difficult to expand to large-scale vehicles such as railway vehicles and the like, and the expansion application of the vehicle-mounted Ethernet in the fields of industry, building automation and the like is also limited.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the present application provides a vehicle-mounted ethernet signal relay device, which can be used for relaying a vehicle-mounted ethernet signal attenuated due to long-distance transmission, so as to extend the transmission distance of the vehicle-mounted ethernet signal and expand the application field of the vehicle-mounted ethernet.
The application provides a vehicle-mounted Ethernet signal relay device, which comprises: the vehicle-mounted power supply device comprises a first vehicle-mounted Ethernet physical chip, a second vehicle-mounted Ethernet physical chip, a first isolation circuit, a second isolation circuit, a power supply circuit and a microprocessor;
the first end of the first vehicle-mounted Ethernet physical chip is connected with a first vehicle-mounted Ethernet connector outside the relay equipment through the first isolation circuit;
the first end of the second vehicle-mounted Ethernet physical chip is connected with a second vehicle-mounted Ethernet connector outside the relay equipment through the second isolation circuit;
the second end of the first vehicle-mounted Ethernet physical chip and the second end of the second vehicle-mounted Ethernet physical chip are interacted through a vehicle-mounted Ethernet;
the input end of the power supply circuit is connected with a data line power supply circuit or a standby power supply, and the output end of the power supply circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor;
the microprocessor is connected with the first vehicle-mounted Ethernet physical chip and the second vehicle-mounted Ethernet physical chip.
Optionally, the power supply circuit includes: a DC-DC step-down circuit;
the input end of the direct current-direct current DC-DC voltage reduction circuit is connected with the data line power supply circuit or the standby power supply, and the output end of the DC-DC voltage reduction circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor.
Optionally, the power supply circuit further includes: a DC-DC boost circuit;
the input end of the DC-DC boosting circuit is connected with the output end of the DC-DC voltage reducing circuit, and the output end of the DC-DC boosting circuit is connected with the second isolating circuit.
Optionally, the DC-DC voltage reduction circuit is a Buck circuit, and the DC-DC voltage Boost circuit is a Boost circuit.
Optionally, the power supply circuit further includes: a first filter inductor circuit;
the first end of the first filter inductance circuit is connected with the data line power supply line, and the second end of the first filter inductance circuit is connected with the input end of the DC-DC voltage reduction circuit.
Optionally, the power supply circuit further includes: a second filter inductor circuit;
and the first end of the second filter inductor circuit is connected with the standby power supply, and the second end of the second filter inductor circuit is connected with the input end of the DC-DC voltage reduction circuit.
Optionally, the power supply circuit further includes: a third filter inductor circuit;
and the first end of the third filter inductor circuit is connected with the output end of the DC-DC booster circuit, and the second end of the third filter inductor circuit is connected with the data line power supply circuit.
Optionally, the apparatus further comprises: an analog-to-digital converter;
the input end of the analog-to-digital converter is connected with the input end of the DC-DC voltage reduction circuit, and the output end of the analog-to-digital converter is connected with the microprocessor;
and the microprocessor is used for judging whether the voltage acquired by the analog-to-digital converter is lower than a preset threshold value.
Optionally, the apparatus further comprises: an indicator light;
and the microprocessor controls the indicator light to be on when judging that the voltage acquired by the analog-to-digital converter is lower than the preset threshold value.
Optionally, the voltage range of the standby power supply is 9V to 16V, and the range of the output voltage of the DC-DC voltage reduction circuit is 3V to 3.3V.
Compared with the prior art, the method has the following beneficial effects:
the vehicle-mounted Ethernet signal relay device comprises: the vehicle-mounted Ethernet system comprises a first vehicle-mounted Ethernet physical chip, a second vehicle-mounted Ethernet physical chip, a first isolation circuit, a second isolation circuit, a power supply circuit and a microprocessor. The first end of the first vehicle-mounted Ethernet physical chip is connected with a first vehicle-mounted Ethernet connector outside the relay device through a first isolation circuit. The first end of the second vehicle-mounted Ethernet physical chip is connected with a second vehicle-mounted Ethernet connector outside the relay equipment through a second isolation circuit. And the second end of the first vehicle-mounted Ethernet physical chip and the second end of the second vehicle-mounted Ethernet interact through the vehicle-mounted Ethernet. The input end of the power supply circuit is connected with a data line power supply line or a standby power supply source, the output end of the power supply circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor, and when the power supply circuit gets points from the data line power supply line, the PoDL technology is applied, so that the complexity of power line wiring can be reduced. The power supply circuit can convert input voltage into direct current voltage required by normal work of the microprocessor, the vehicle-mounted Ethernet physical chip and the like, and the microprocessor is connected with the first vehicle-mounted Ethernet physical chip and the second vehicle-mounted Ethernet physical chip.
The relay device is used for relaying the vehicle-mounted Ethernet signals attenuated due to long-distance transmission, so that the transmission distance of the vehicle-mounted Ethernet signals is prolonged, the application field of the vehicle-mounted Ethernet is expanded, and the complexity of power line wiring is reduced by using the PoDL technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a vehicle-mounted ethernet signal relay device according to an embodiment of the present disclosure;
fig. 2 is a schematic view of an application scenario of a vehicle-mounted ethernet signal relay device according to an embodiment of the present application;
fig. 3 is a schematic diagram of another vehicle-mounted ethernet signal relay device according to an embodiment of the present application.
Detailed Description
In order to meet the requirement of electromagnetic compatibility in vehicle-mounted application, the vehicle-mounted Ethernet optimizes the physical layer design aiming at the vehicle-mounted use environment, and greatly weakens the driving capability of signals (compared with the standard Ethernet), so that the maximum transmission distance of the vehicle-mounted Ethernet is only 15 meters. Meanwhile, the application range of the vehicle-mounted Ethernet is greatly reduced due to the characteristic of short transmission distance, the vehicle-mounted Ethernet can only be applied to passenger vehicles and small vehicles generally, is difficult to expand to large-scale vehicles such as railway vehicles and the like, and the expansion application of the vehicle-mounted Ethernet in the fields of industry, building automation and the like is also limited.
In order to solve the technical problem, an embodiment of the present application provides a vehicle-mounted ethernet signal relay device, which can be used for relaying a vehicle-mounted ethernet signal attenuated due to long-distance transmission, so as to extend a transmission distance of the vehicle-mounted ethernet signal and expand an application field of a vehicle-mounted ethernet. In addition, the relay device also uses a PoDL (Power over DataLine) technology to improve the complexity of Power line wiring, and also can automatically judge and switch a master/slave mode, thereby simplifying a setting operation.
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is to be understood that the terms "first," "second," and the like in this application are used for convenience of description only and do not constitute a limitation on the present application.
The first embodiment is as follows:
the embodiment of the application provides a vehicle-mounted ethernet signal relay device, which can be used for relaying a vehicle-mounted ethernet signal attenuated due to long-distance transmission, and is specifically described below with reference to the accompanying drawings.
Referring to fig. 1, the figure is a schematic diagram of a vehicle-mounted ethernet signal relay device according to an embodiment of the present application.
The in-vehicle ethernet signal relay apparatus 100 includes: first on-vehicle ethernet physical chip 004, second on-vehicle ethernet physical chip 005, first isolating circuit 006, second isolating circuit 007, microprocessor 008 and power supply circuit 009.
A first end of the first vehicle-mounted ethernet physical chip 004 is connected to the first vehicle-mounted ethernet connector 001 outside the relay device through the first isolation circuit 006.
The first end of the second on-vehicle ethernet physical chip 005 is connected to the second on-vehicle ethernet connector 002 outside the relay device via the second isolation circuit 007.
The first isolating circuit 006 and the second isolating circuit 007 are used for realizing common mode rejection and reducing distortion of network signal transmission.
The second end of the first vehicle-mounted ethernet physical chip 004 interacts with the second end of the second vehicle-mounted ethernet physical chip 005 through the vehicle-mounted ethernet. In practical application, the physical chip can be a vehicle-mounted ethernet physical chip of 100Mbps/1000Mbps, and can also be a dual-port physical chip, two vehicle-mounted ethernet physical chips can be connected through MII (Medium independent Interface), MII specifically includes types such as RGMII (Reduced Gigabit media independent Interface ), SGMII (Serial Gigabit media independent Interface), although the forms are different, but all belong to the protection range of the present invention, the specific type of the adopted Interface is not limited by the present application.
The input end of the power supply circuit 009 is connected to the data line power supply line or the standby power supply 003, and the output end of the power supply circuit 009 is connected to the first vehicle-mounted ethernet physical chip 004 and the second vehicle-mounted ethernet physical chip 005.
The microprocessor 008 is connected to the first in-vehicle ethernet physical chip 004 and the second in-vehicle ethernet physical chip 005. The microprocessor 008 can monitor whether the input voltage and the output voltage of the vehicle-mounted ethernet signal relay device 100 meet the power supply requirement, and if the vehicle-mounted ethernet signal relay device is in an undervoltage state, the relay device is switched to a sleep state.
Referring to fig. 2, the figure is a schematic view of an application scenario of the vehicle-mounted ethernet signal relay device according to the embodiment of the present application.
The first vehicle ethernet connector 001 in fig. 1 is located at the vehicle ethernet node 1, and the second vehicle ethernet connector 002 is located at the vehicle ethernet node 2. When the wiring between two vehicle-mounted ethernet nodes exceeds 15 meters, or when the signal attenuation between two vehicle-mounted ethernet nodes causes situations of poor communication, packet loss, etc., for example, taking application and railway transportation as an example, the vehicle-mounted ethernet nodes 1 and 2 may be located at two ends of different cars or the same car, and the vehicle-mounted ethernet signal relay device 100 may be connected in series between the two vehicle-mounted ethernet nodes through a vehicle-mounted ethernet harness.
The vehicle-mounted ethernet signal relay device 100 employs the PoDL power supply technology, and if the vehicle-mounted ethernet node 1 supports PoDL power supply, external independent power supply can be omitted, that is, the standby power supply 003 is not required, the input end of the power supply circuit 009 is connected to the data line power supply line, and the power supply circuit 009 can also strip power supply from the data line power supply line.
In-vehicle ethernet signal relay device 100 may also be powered by backup power supply 003 if in-vehicle ethernet node 1 does not support PoDL power.
In addition, the apparatus also supports cascading, that is, a plurality of the vehicle-mounted ethernet signal relay devices 100 may be connected in series between two vehicle-mounted ethernet nodes in a cascading manner, so as to increase the transmission distance of the vehicle-mounted ethernet.
In the cascade case, power supply only needs to be performed by PoDL or the backup power supply for one in-vehicle ethernet signal relay apparatus 100 connected at the end, and therefore the complexity of power line wiring can be simplified.
To sum up, the relay device provided by the embodiment of the present application can be used for relaying the vehicle-mounted ethernet signal attenuated due to long-distance transmission, thereby extending the transmission distance of the vehicle-mounted ethernet signal, expanding the application field of the vehicle-mounted ethernet, and reducing the complexity of power line wiring by using the PoDL technology.
Example two:
the working principle of the vehicle-mounted ethernet signal relay device is described below with reference to a specific implementation manner.
Referring to fig. 3, the figure is a schematic view of another vehicle-mounted ethernet signal relay device provided in the embodiment of the present application.
The power supply circuit of the in-vehicle ethernet signal relay apparatus 100 includes: DC-DC (direct current-direct current) voltage reducing circuit 010, DC-DC voltage boosting circuit 011, first filter inductor circuit 012, second filter inductor circuit 013, and third filter inductor circuit 014.
The capacitors included in the first and second isolation circuits 006 and 007 are used to isolate the dc component and retain the ac component, and the common mode inductor included therein is used to suppress the common mode noise.
In this embodiment, the microprocessor 008 is specifically an MCU (Micro Controller Unit, Micro control Unit) as an example, and in practical application, the MCU needs a dc voltage of 3.3V when it works normally.
The input end of the DC-DC voltage reduction circuit 010 is connected with a data line power supply line or a standby power supply 003, and the output end of the DC-DC voltage reduction circuit 010 is connected with a first vehicle-mounted Ethernet physical chip 004, a second vehicle-mounted Ethernet physical chip 005 and an MCU 008. The DC-DC voltage reduction circuit may be a Buck circuit or other circuits with voltage reduction function, and the specific circuit structure of the DC-DC voltage reduction circuit is not limited in the embodiments of the present application.
The direct-current voltage range provided by the standby power supply 003 is 9V-16V, and when the vehicle-mounted Ethernet node where the first vehicle-mounted Ethernet connector 001 is located does not support PoDL power supply, the standby power supply 003 can supply power.
The DC-DC voltage reducing circuit 010 can convert the input voltage into a DC voltage required by the MCU008 and the on-vehicle ethernet physical chip during normal operation. The output voltage of the DC-DC voltage step-down circuit 010 ranges from 3V to 3.3V.
The input end of the DC-DC voltage boosting circuit 011 is connected with the output end of the DC-DC voltage reducing circuit 010, and the output end of the DC-DC voltage boosting circuit 011 is connected with the second isolating circuit 007.
When a plurality of relay devices are cascaded, the DC-DC booster circuit 011 can convert the voltage of 3V-3.3 into the voltage of 9V-16V required by the next-stage relay device, and can provide stable working voltage for the next-stage relay device under the condition of voltage loss on a transmission line, so that the next-stage relay device does not need to repeatedly carry out power supply wiring, and the power supply wiring can be simplified when a plurality of relay devices are cascaded. The DC-DC Boost circuit may be a Boost circuit or other circuits with a Boost function, and the specific circuit structure of the DC-DC Boost circuit is not limited in the embodiments of the present application.
A first end of the first filter inductor circuit 012 is connected to a data line power supply line, and a second end of the first filter inductor circuit 012 is connected to an input end of the DC-DC voltage step-down circuit 010.
The first filter inductor circuit 012 is a PoDL power filter inductor circuit, and when the vehicle ethernet node connected to the first vehicle ethernet connector 001 supports PoDL power supply, the power supply can be separated from the data communication line to supply power to the relay device, and at this time, the switch S1 is opened and the switch S2 is closed.
A first terminal of the second filter inductor circuit 013 is connected to the standby power supply 003, and a second terminal of the second filter inductor circuit 013 is connected to an input terminal of the DC-DC buck circuit 010.
The second filter inductor circuit 013 is a filter circuit of the standby power supply 003, and when the on-board ethernet node to which the first on-board ethernet connector 001 is connected does not support PoDL power supply, the switch S1 is closed and the switch S2 is open.
The first end of the third filter inductor circuit 014 is connected with the output end of the DC-DC booster circuit 011, and the second end of the third filter inductor circuit 014 is connected with the data line power supply line.
The third filter inductor circuit 014 is a PoDL power filter inductor circuit, and in the cascade state of the relay devices, power can be supplied to the next-stage relay device through the communication line, so that the power wiring of the system can be simplified.
Further, the in-vehicle ethernet signal relay apparatus 100 may further include: an ADC (analog-to-digital converter) 015 and an indicator light 016.
The input end of the ADC015 is connected with the input end of the DC-DC voltage reduction circuit 010, and the output end of the ADC015 is connected with the MCU 008.
In the embodiment of the application, the indicator 016 is taken as an example of the LED, and the LED is used for indicating the connection state and the power failure state.
The MCU008 is used for judging whether the voltage collected by the ADC015 is lower than a preset threshold value. When the MCU008 judges that the voltage collected by the ADC015 is lower than a preset threshold value, the indicator light 016 is controlled to be on. The preset threshold may be set according to an actual situation, and the preset threshold is not specifically limited in the embodiment of the present application, for example, the preset threshold may be set to 9V.
The MCU008 can monitor whether the input and output voltages of the relay device meet the power supply requirement, and if the relay device is in an undervoltage state, the relay device is controlled to be switched to a dormant state.
The MCU008 can also automatically determine and switch the master/slave mode of the relay device, thereby simplifying the setting of the master/slave mode, which is described in detail below:
(1) assume that the interface of the first onboard ethernet connector 001 is set to the master mode by default.
(2) And detecting the power supply voltage, judging that a vehicle-mounted Ethernet connector is accessed when the detected PoDL power supply is higher than 9V, and otherwise, judging that no vehicle-mounted Ethernet connector is accessed.
(3) If the vehicle-mounted Ethernet connector is accessed, the connection (Link) state is judged by reading the register of the vehicle-mounted Ethernet physical chip, and if the connection (Link) is available, the setting of the main mode is reserved.
If the connection is not possible (Link), switching to the slave mode is attempted, and if the connection is successful, the slave mode setting is retained.
(4) If neither the master mode nor the slave mode can be connected (Link), an error is reported by the LED016 to display a failure state.
In summary, the vehicle-mounted ethernet signal relay device provided in the embodiment of the present application can relay the vehicle-mounted ethernet signal attenuated due to long-distance transmission, so as to extend the transmission distance of the vehicle-mounted ethernet signal and expand the application field of the vehicle-mounted ethernet. The relay device also uses the PoDL technology to reduce the complexity of power line wiring, and is also capable of automatically judging and switching the master/slave mode, thereby simplifying the setting operation. In addition, the relay equipment can also judge whether a connection fault and a power supply fault occur or not in time and prompt, so that the practicability is improved.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application in any way. Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application. Those skilled in the art can make numerous possible variations and modifications to the disclosed solution, or modify equivalent embodiments to equivalent variations, without departing from the scope of the solution, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.
Claims (10)
1. An in-vehicle ethernet signal relay device, comprising: the vehicle-mounted power supply device comprises a first vehicle-mounted Ethernet physical chip, a second vehicle-mounted Ethernet physical chip, a first isolation circuit, a second isolation circuit, a power supply circuit and a microprocessor;
the first end of the first vehicle-mounted Ethernet physical chip is connected with a first vehicle-mounted Ethernet connector outside the relay equipment through the first isolation circuit;
the first end of the second vehicle-mounted Ethernet physical chip is connected with a second vehicle-mounted Ethernet connector outside the relay equipment through the second isolation circuit;
the second end of the first vehicle-mounted Ethernet physical chip and the second end of the second vehicle-mounted Ethernet physical chip are interacted through a vehicle-mounted Ethernet;
the input end of the power supply circuit is connected with a data line power supply circuit or a standby power supply, and the output end of the power supply circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor;
the microprocessor is connected with the first vehicle-mounted Ethernet physical chip and the second vehicle-mounted Ethernet physical chip.
2. The apparatus of claim 1, wherein the power supply circuit comprises: a DC-DC step-down circuit;
the input end of the direct current-direct current DC-DC voltage reduction circuit is connected with the data line power supply circuit or the standby power supply, and the output end of the DC-DC voltage reduction circuit is connected with the first vehicle-mounted Ethernet physical chip, the second vehicle-mounted Ethernet physical chip and the microprocessor.
3. The apparatus of claim 2, wherein the power supply circuit further comprises: a DC-DC boost circuit;
the input end of the DC-DC boosting circuit is connected with the output end of the DC-DC voltage reducing circuit, and the output end of the DC-DC boosting circuit is connected with the second isolating circuit.
4. The apparatus of claim 3, wherein the DC-DC voltage reduction circuit is a Buck circuit and the DC-DC voltage Boost circuit is a Boost circuit.
5. The apparatus of claim 3, wherein the power supply circuit further comprises: a first filter inductor circuit;
the first end of the first filter inductance circuit is connected with the data line power supply line, and the second end of the first filter inductance circuit is connected with the input end of the DC-DC voltage reduction circuit.
6. The apparatus of claim 3, wherein the power supply circuit further comprises: a second filter inductor circuit;
and the first end of the second filter inductor circuit is connected with the standby power supply, and the second end of the second filter inductor circuit is connected with the input end of the DC-DC voltage reduction circuit.
7. The apparatus of claim 3, wherein the power supply circuit further comprises: a third filter inductor circuit;
and the first end of the third filter inductor circuit is connected with the output end of the DC-DC booster circuit, and the second end of the third filter inductor circuit is connected with the data line power supply circuit.
8. The apparatus of any of claims 2-7, further comprising: an analog-to-digital converter;
the input end of the analog-to-digital converter is connected with the input end of the DC-DC voltage reduction circuit, and the output end of the analog-to-digital converter is connected with the microprocessor;
and the microprocessor is used for judging whether the voltage acquired by the analog-to-digital converter is lower than a preset threshold value.
9. The apparatus of claim 8, further comprising: an indicator light;
and the microprocessor controls the indicator light to be on when judging that the voltage acquired by the analog-to-digital converter is lower than the preset threshold value.
10. The apparatus of claim 2, wherein the backup power supply has a voltage in a range of 9V-16V, and the DC-DC buck circuit has an output voltage in a range of 3V-3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081339.XU CN210839620U (en) | 2019-11-27 | 2019-11-27 | Vehicle-mounted Ethernet signal relay equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922081339.XU CN210839620U (en) | 2019-11-27 | 2019-11-27 | Vehicle-mounted Ethernet signal relay equipment |
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| CN210839620U true CN210839620U (en) | 2020-06-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504773A (en) * | 2021-07-29 | 2021-10-15 | 安徽江淮汽车集团股份有限公司 | Ethernet test method and Ethernet test system of vehicle-mounted controller |
| CN114876313A (en) * | 2022-03-01 | 2022-08-09 | 东方久乐汽车电子（上海）股份有限公司 | Induction type automobile tail door and automobile body domain integration system and method thereof |
| CN114978960A (en) * | 2022-08-01 | 2022-08-30 | 广州赛宝计量检测中心服务有限公司 | Ethernet frame header trigger |
-
2019
- 2019-11-27 CN CN201922081339.XU patent/CN210839620U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504773A (en) * | 2021-07-29 | 2021-10-15 | 安徽江淮汽车集团股份有限公司 | Ethernet test method and Ethernet test system of vehicle-mounted controller |
| CN114876313A (en) * | 2022-03-01 | 2022-08-09 | 东方久乐汽车电子（上海）股份有限公司 | Induction type automobile tail door and automobile body domain integration system and method thereof |
| CN114978960A (en) * | 2022-08-01 | 2022-08-30 | 广州赛宝计量检测中心服务有限公司 | Ethernet frame header trigger |
| CN114978960B (en) * | 2022-08-01 | 2022-11-08 | 广州赛宝计量检测中心服务有限公司 | Ethernet frame header trigger |
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