CN212572582U

CN212572582U - POE network card supporting synchronous triggering function

Info

Publication number: CN212572582U
Application number: CN202021772054.7U
Authority: CN
Inventors: 周永红
Original assignee: Shenzhen Lianrui Electronics Co ltd
Current assignee: Shenzhen Lianrui Electronics Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-02-19
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a support POE network card of synchronous trigger function, include: PCIe switch chip, FPGA chip, microcontroller, POE management chip, a plurality of network card chips and a plurality of RJ45 network interface, PCIe switch chip is connected with FPGA chip and network card chip, the FPGA chip is connected with microcontroller and network card chip, POE management chip and microcontroller and RJ45 network interface connection, every network card chip respectively with a RJ45 network interface connection, PCIe switch chip is connected with the PCIe golden finger. The utility model discloses a FPGA chip carries out the package with instruction information to the pattern through the ethernet data package becomes a plurality of fritters with instruction information separation and sends, guarantees that all cameras can receive the trigger command of shooing simultaneously, realizes triggering in step, satisfies the demand of not having the time delay synchronous shooting to different visual angles in the machine vision trade.

Description

POE network card supporting synchronous triggering function

Technical Field

The utility model relates to a network transmission field especially relates to a support POE network card of synchronous trigger function.

Background

POE refers to a technology that, without any change in the existing ethernet cat.5 wiring infrastructure, can provide dc power for some IP-based terminals (such as IP phones, wireless lan access points AP, network cameras, etc.) while transmitting data signals. The POE technology can ensure the normal operation of the existing network while ensuring the safety of the existing organization wiring, and the cost is reduced to the maximum extent. POE, also known as local area network based power systems or active ethernet, sometimes also referred to simply as power over ethernet, is a recent standard specification for simultaneous data and electrical power transfer using existing standard ethernet transmission cables, and maintains compatibility with existing ethernet systems and users.

At present, in the machine vision industry, particularly in the application of an image acquisition algorithm, a plurality of cameras need to meet the requirement of shooting from different angles at the same time. This requires that the multi-angle pictures acquired by multiple cameras at the same time are synchronous and have no time delay, so as to facilitate the later image synthesis operation and improve the synthesis accuracy. The POE network card on the market controls triggering of the camera through an IO port of the single chip microcomputer, and certain time delay exists due to the problem of transmission rate, so that the requirement of no time delay cannot be met.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a POE network card that supports synchronous trigger function.

The technical scheme of the utility model as follows: the utility model provides a support POE network card of synchronous trigger function, includes: PCIe switch chip, FPGA chip, microcontroller, POE management chip, a plurality of network card chips and a plurality of RJ45 network interface, PCIe switch chip is connected with FPGA chip and network card chip, the FPGA chip is connected with microcontroller and network card chip, POE management chip and microcontroller and RJ45 network interface connection, every network card chip respectively with a RJ45 network interface connection, PCIe switch chip is connected with the PCIe golden finger.

Further, the model of the PCIe switch chip is PI7C9X2G 612.

Further, the model of the network card chip is INTEL I210 AT.

Further, the model of the FPGA chip is EP4CGX18BF 1.

Further, the model of the POE management chip is TPS 23861.

Further, the microcontroller is of the model STM32F103C8T 6.

According to the above technical scheme, the utility model discloses a FPGA chip carries out the package with instruction information to the pattern through the ethernet data packet separates into a plurality of fritters with instruction information and sends, guarantees that all cameras can receive the trigger command of shooing simultaneously, realizes triggering in step, satisfies the demand of not having the time delay synchronous shooting to different visual angles in the machine vision trade.

Drawings

Fig. 1 is a circuit connection block diagram of the present invention.

Fig. 2 is a schematic circuit connection diagram of the FPGA chip.

Fig. 3 is a schematic circuit diagram of the microcontroller.

Fig. 4 is a schematic circuit connection diagram of the network card chip.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the technical solution of the present invention is as follows: the utility model provides a support POE network card of synchronous trigger function, includes: PCIe switch chip, FPGA chip, microcontroller, POE management chip, a plurality of network card chips and a plurality of RJ45 network interface, PCIe switch chip is connected with FPGA chip and network card chip, the FPGA chip is connected with microcontroller and network card chip, POE management chip and microcontroller and RJ45 network interface connection, every network card chip respectively with a RJ45 network interface connection, PCIe switch chip is connected with the PCIe golden finger. And a network cable is inserted into the RJ45 network interface, so that the POE network card is connected with the network camera. During operation, the control instruction is packaged through the FPGA chip, and the packaged Ethernet data packet is transmitted to all POE cameras. The Ethernet data packet divides data into a plurality of small blocks to be sent as transmission units, and ensures that all cameras sharing network resources can fairly and rapidly receive instruction information, so that all the cameras connected with the POE network card can simultaneously receive photographing triggering instructions, synchronous triggering is realized, and the requirement of no time delay is met.

The model of the PCIe switch chip is PI7C9X2G 612. Referring to fig. 4, the model of the network card chip is INTEL I210 AT. Referring to fig. 2, the model of the FPGA chip is EP4CGX18BF 1. The POE management chip is of the type TPS 23861. Referring to fig. 3, the microcontroller is model STM32F103C8T 6.

To sum up, the utility model discloses a FPGA chip carries out the package with instruction information to form through the ethernet data packet and separate into a plurality of fritters with instruction information and send, guarantee that all cameras can receive the trigger command of shooing simultaneously, realize triggering in step, satisfy the demand of not having the time delay synchronous shooting to different visual angles in the machine vision trade.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a support POE network card of synchronous trigger function which characterized in that includes: PCIe switch chip, FPGA chip, microcontroller, POE management chip, a plurality of network card chips and a plurality of RJ45 network interface, PCIe switch chip is connected with FPGA chip and network card chip, the FPGA chip is connected with microcontroller and network card chip, POE management chip and microcontroller and RJ45 network interface connection, every network card chip respectively with a RJ45 network interface connection, PCIe switch chip is connected with the PCIe golden finger.

2. The POE network card supporting the synchronous trigger function of claim 1, wherein the model of the PCIe switch chip is PI7C9X2G 612.

3. The POE network card supporting the synchronous triggering function according to claim 1, wherein the type of the network card chip is INTEL I210 AT.

4. The POE network card supporting the synchronous triggering function according to claim 1, wherein the model of the FPGA chip is EP4CGX18BF 1.

5. The POE network card supporting the synchronous triggering function according to claim 1, wherein the POE management chip is of the model number TPS 23861.

6. The POE network card supporting the synchronous triggering function according to claim 1, wherein the model of the microcontroller is STM32F103C8T 6.