CN213462036U

CN213462036U - Image acquisition unit of host computer in 5T detection station

Info

Publication number: CN213462036U
Application number: CN202022725025.1U
Authority: CN
Inventors: 叶彦斐; 胡文杰; 华琦; 林志峰; 涂娟; 童先洲; 姚成钢
Original assignee: NANJING RICHISLAND INFORMATION ENGINEERING CO LTD
Current assignee: NANJING RICHISLAND INFORMATION ENGINEERING CO LTD
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-15
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses an image acquisition unit of a host in a 5T detection station, which comprises a front panel unit, an interface driving module, a power module, an image receiving module, a data communication module and a back panel unit; the front panel unit is connected with the image receiving module through the interface driving module, the back panel unit is connected with the voltage input end of the power supply module and the data communication module, the data communication module is connected with the image receiving module, and the voltage output of the power supply module is respectively connected with the image receiving module, the interface driving module and the data communication module. The utility model discloses an image receiving module unit of host computer can draw from the surveillance camera head of 5T detecting station through backplate unit net gape and get real-time video stream, can support 2 ways of videos to discern simultaneously in the 5T detecting station.

Description

Image acquisition unit of host computer in 5T detection station

Technical Field

The utility model belongs to railway safety monitoring and fortune dimension field relate to an image acquisition unit of host computer in 5T surveys station.

Background

With the increase of railway lines and the widening of coverage areas, more and more detection stations for placing 5T equipment are built along the railway operation lines. The 5T system is a vehicle safety precaution system established by relevant departments of railways in China to adapt to the development of modern railways, and the normal operation of the 5T detection station is directly related to the safety and efficiency of the daily operation of railways, so that the system has important significance on the safe operation of railways.

During the daily operation and maintenance work of the 5T detection station, workers need to correctly wear safety helmets and protective clothing. However, although the existing video monitoring system in the 5T detection station can display the working condition of the staff in the station in real time, the wearing of the safety helmet and the wearing of the protective clothing of the staff in the operation engineering cannot be identified in real time, and the staff needs to monitor for 24 hours and manually patrol. Due to the limited energy of the watchmen, the watchmen are easy to be tired and distracted, and accidents which potentially threaten safe production often occur.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an algorithm unit suitable for wear and carry out real-time identification and report the discernment result with the protective clothing condition of wearing to fortune dimension staff's safety helmet in 5T surveys the station.

The technical scheme is as follows:

an algorithm unit of a host in a 5T detection station comprises a front panel unit, an interface driving module, a power supply module, an image receiving module, a data communication module and a back panel unit; the front panel unit is connected with the image receiving module through the interface driving module, the back panel unit is connected with the voltage input end of the power supply module and the data communication module, the data communication module is connected with the image receiving module, and the voltage output of the power supply module is respectively connected with the image receiving module, the interface driving module and the data communication module.

Specifically, the power module comprises a hot plug control circuit, a power-on sequence control circuit and a DCDC voltage conversion circuit; the input line of the hot-plug circuit is a 12V voltage input line of the power module, and the output line is respectively connected with the power input lines of the image receiving module, the power-on time sequence control circuit and the DCDC voltage conversion circuit; the output circuit of the power-on time sequence control circuit is connected with a VIN _ PWR _ BAD _ L pin of the image receiving module; and an output line of the DCDC voltage conversion circuit is respectively connected with a voltage input line of the data communication module and the interface driving module, and a RESET _ OUT _ L pin of the image receiving module.

Specifically, the back panel unit comprises a 12V power supply circuit, an Ethernet circuit, an RS485 circuit I and an RS485 circuit II, wherein the 12V power supply circuit in the back panel unit is connected with a 12V voltage input circuit of the power supply module; the Ethernet line is connected with an Ethernet transformer of the data communication module; the RS485 circuit I is connected with an RS485 serial port circuit of a first TTL to RS485 conversion module in the data communication module, and the RS485 circuit II is connected with an RS485 serial port circuit of a second TTL to RS485 conversion module in the data communication module.

Specifically, the front panel unit comprises 2 paths of Ethernet interfaces, 2 paths of USB interfaces and 1 path of HDMI interface; the interface driving module comprises an HDMI module, a first PCIe-to-LAN module, a second PCIe-to-LAN module and a USB power management module; the 5V voltage input circuit of the HDMI module is connected with the 5V output circuit of the DC-DC voltage conversion circuit in the power module, the signal input end of the HDMI module is connected with the HDMI interface of the image receiving module, and the signal output end of the HDMI module is connected with the HDMI interface of the front panel unit; a 3.3V voltage input line of the first PCIe-to-LAN module is connected with a 3.3V output line of a DC-DC voltage conversion circuit in the power module, an Ethernet line of the first PCIe-to-LAN module is connected with a first path Ethernet interface of the front panel unit, and a PCIe interface of the first PCIe-to-LAN module is connected with a first path PCIe interface of the image receiving module; a 3.3V voltage input line of the second PCIe-to-LAN module is connected with a 3.3V output line of a DC-DC voltage conversion circuit in the power module, an Ethernet line of the second PCIe-to-LAN module is connected with a second path of Ethernet interface of the front panel unit, and a PCIe interface of the second PCIe-to-LAN module is connected with a second path of PCIe interface of the image receiving module; the 5V voltage input circuit of the USB power management module is connected with the 5V output circuit of the DC-DC voltage conversion circuit in the power module, and the voltage output circuit of the USB power management module is respectively connected with the voltage input circuits of the two USB interfaces of the front panel unit; and the data transmission lines of the first path of USB interface and the second path of USB interface of the front panel unit are respectively connected with the data transmission lines of the first path of USB interface and the second path of USB interface of the image receiving module.

Specifically, the data communication module comprises an ethernet transformer and two TTL-to-RS 485 modules; the Ethernet transformer isolates the Ethernet line of the gigabit Ethernet GBE interface of the image receiving module from the Ethernet line of the backboard unit; a 3.3V voltage input circuit of the first TTL-to-RS 485 module is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, a serial port circuit of the first TTL-to-RS 485 module is connected with a first RS485 circuit of the backboard unit, and a TTL level serial port of the first TTL-to-RS 485 module is connected with a first UART interface of the image receiving module; and a 3.3V voltage input circuit of the second TTL-to-RS 485 module is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, an RS485 serial port circuit of the second TTL-to-RS 485 module is connected with a second RS485 circuit of the backboard unit, and a TTL level serial port of the second TTL-to-RS 485 module is connected with a second path of UART interface of the image receiving module.

Specifically, the image receiving module is connected to the image processing module and transmits image data.

The image processing module adopts an NVIDIA Jetson TX2 module, and the NVIDIA Jetson TX2 module is provided with an extended SATA interface and a fan interface.

The beneficial effects of the utility model

The utility model discloses an image receiving module of host computer in 5T surveys station can draw from the surveillance camera head of 5T surveys station through backplate unit net gape and get real-time video stream, can support 2 ways of videos to discern simultaneously.

The wearing conditions of safety helmets and protective clothing of workers can be intelligently identified from the video streams, and the marked video streams are published in real time through the internet access.

Drawings

Fig. 1 is a frame diagram of an algorithm unit according to the present invention.

Detailed Description

The present invention will be further explained with reference to the following examples, but the scope of the present invention is not limited thereto:

as shown in fig. 1, an algorithm unit of a host in a 5T detection station includes a front panel unit, an interface driving module, a power supply module, an image receiving module, a data communication module, and a back panel unit.

The front panel unit comprises 2 paths of Ethernet interfaces, 2 paths of USB interfaces and 1 path of HDMI interface; the 2-path Ethernet interface is RJ45 gigabit Ethernet interface, the 2-path USB interface is USB 2.0A interface, and the HDMI interface is HDMI 2.0A interface.

The power module comprises a hot plug control circuit, a power-on sequence control circuit and a DCDC voltage conversion circuit, wherein a main chip of the hot plug circuit adopts an LTC1422 chip of a linear company, and the LTC1422 chip is an 8-pin hot plug chip which can allow a power supply to be safely inserted and taken out. The DC-DC voltage conversion circuit main chip adopts 2 TPS53015DGSR chips and 1 TPS62130RGTR chip of TI company to realize the conversion of 12V into 5V, 3.3V and 1.8V respectively. The power-on sequence control circuit consists of a capacitor and a MOS (metal oxide semiconductor) tube circuit and can generate the power-on sequence required by starting the TX2 module. A 12V voltage input line of the power module is connected with a 12V power line in the backplane unit, an input line of the hot plug circuit is a 12V voltage input line of the power module, an output line of the hot plug module is respectively connected with power input lines of the image receiving module, the power-on time sequence control circuit and the DCDC voltage conversion circuit, wherein a pin 2 of a main chip LTC1422 in the hot plug circuit is 12V voltage input, a pin 7 is 12V voltage output, and the pins are respectively connected with the power input line of the power-on time sequence control circuit, a VIN _ MOD pin of the image receiving module, a pin 5 of a 2 DC-DC voltage conversion circuit chip 530TPS 15DGSR and pins 10, 11 and 12 of a third DC-DC voltage conversion circuit chip TPS62130 RGTR; the output circuit of the power-on time sequence control circuit is connected with a VIN _ PWR _ BAD _ L pin of the image receiving module; a pin 8 of the DGSR of the first DC-DC voltage conversion circuit chip TPS53015 outputs 5V voltage, and is connected with a power input line of an HDMI module of the interface driving module and a power input line of the USB power management module; a pin 8 of a DGSR of a second DC-DC voltage conversion circuit chip TPS53015 outputs 3.3V voltage, and is connected with power input lines of a first TTL-to-RS 485 module, a second TTL-to-RS 485 module, a first PCIe-to-LAN module and a second PCIe-to-LAN module of the interface driving module;

pins

1, 2 and 3 of the third DC-DC voltage conversion circuit chip TPS62130RGTR output 1.8V voltage, and pin 4 outputs PG signal connected with RESET _ OUT _ L pin of the image receiving module.

The interface driving module comprises an HDMI module, a first PCIe-to-LAN module, a second PCIe-to-LAN module and a USB power management module; the 5V voltage input circuit of the HDMI module is connected with the 5V output circuit of the DC-DC voltage conversion circuit in the power module, the signal input end of the HDMI module is connected with the HDMI interface of the image receiving module, and the signal output end of the HDMI module is connected with the HDMI interface of the front panel unit; the HDMI module main circuit is composed of three TPD4E02B04DQAR chips of TI company, the TPD4E02B04DQAR chips are mainly used for HDMI interface electrostatic protection, wherein pins 1, 2, 4, 5 of the first TPD4E02B04DQAR chip are respectively connected with HDMI _ DDC _ SDA _5V0, HDMI _ DDC _ SCL _5V0, HDMI _ CEC _ CON and HDMI _ HPD _ CON lines of an HDMI interface of the image receiving module, and pins 10, 9, 7, 6 of the first TPD4E02B04DQAR chip are respectively connected with HDMI _ DDC _ SDA _5V0, HDMI _ DDC _ SCL _5V0, HDMI _ CEC _ CON and HDMI _ HPD _ CON lines of an HDMI interface of the front panel unit; pins 1, 2, 4, 5 of the second TPD4E02B04DQAR chip are respectively connected with HDMI _ TXC _ CON _ N, HDMI _ TXC _ CON _ P, HDMI _ TXD0_ CON _ N, HDMI _ TXD0_ CON _ P lines of the HDMI interface of the image receiving module, and pins 10, 9, 7, 6 of the second TPD4E02B04DQAR chip are respectively connected with HDMI _ TXC _ CON _ N, HDMI _ TXC _ CON _ P, HDMI _ TXD0_ CON _ N, HDMI _ TXD0_ CON _ P lines of the HDMI interface of the front panel unit; pins 1, 2, 4, 5 of the TPD4E02B04DQAR chip are connected to HDMI _ TX1_ CON _ N, HDMI _ TX1_ CON _ P, HDMI _ TX2_ CON _ N, and HDMI _ TXD2_ CON _ P lines of the HDMI interface of the image receiving module, respectively, and pins 10, 9, 7, 6 of the TPD4E02B04DQAR chip are connected to HDMI _ TX1_ CON _ N, HDMI _ TX1_ CON _ P, HDMI _ TX2_ CON _ N, and HDMI _ TXD2_ CON _ P lines of the HDMI interface of the front panel unit, respectively. The two PCIe-to-LAN modules both adopt WGI210 chips of Intel corporation, pins 49, 50, 52, 53, 54, 55, 57 and 58 of the WGI210 chip of the first PCIe-to-LAN module are respectively in contact connection with the differential lines of the first path of Ethernet interface of the front panel unit, and pins 17, 20, 21, 23, 24, 25 and 26 of the WGI210 chip of the first PCIe-to-LAN module are respectively in contact connection with the lines of the first path of PCIe interface of the image receiving module; pins 49, 50, 52, 53, 54, 55, 57 and 58 of the WGI210 chip of the second PCIe-to-LAN module are respectively in contact connection with the differential lines of the second PCIe-to-ethernet interface of the front panel unit, and pins 17, 20, 21, 23, 24, 25 and 26 of the WGI210 chip of the second PCIe-to-LAN module are respectively in contact connection with the lines of the second PCIe interface of the image receiving module; the USB power supply management module adopts a TPS2066 chip of TI company, a power supply input pin 2 of the TPS2066 chip of the USB power supply management module is connected with a 5V output line of a DC-DC voltage conversion circuit in the power supply module, and a voltage output pin 6 and a pin 7 of the TPS2066 chip of the USB power supply management module are respectively connected with power supply input lines VCC of two USB interfaces of the front panel unit; and the data transmission lines D + and D-of the first path of USB interface and the second path of USB interface of the front panel unit are respectively connected with the data transmission lines D + and D-of the first path of USB interface and the second path of USB interface of the image receiving module.

The data communication module comprises an Ethernet transformer and two TTL-to-RS 485 modules; the type of the Ethernet transformer is HX1188NL, and the TTL-to-RS 485 module selects an MAX3845 chip;

pins

1, 3, 6, and 8 of the ethernet transformer, where the

pins

1 and 3 are data transmission pins, the pins 6 and 8 are data reception pins, and are respectively connected to a differential line of a GBE gigabit ethernet port of the image receiving module, and pins 16, 14, 11, and 9 of the ethernet transformer, where the pins 16 and 14 are data transmission pins, and the pins 11 and 9 are data reception pins, and are respectively connected to a differential line of an ethernet interface of the backplane unit; a pin 8 of a MAX3845 chip of the first TTL-to-RS 485 module is in 3.3V voltage input and is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, an RS485 serial port circuit of the MAX3845 chip is connected with an RS485 circuit of the backboard unit, a pin 6 of the MAX3845 chip is connected with an RS485-A of a RS485 circuit I of the backboard unit, a pin 7 is connected with an RS485-B of the RS485 circuit I of the backboard unit, a TTL level serial port of the MAX3845 chip is connected with a serial port 1 of the image receiving module, a pin 1 of the MAX3845 chip in the TTL level serial ports of the MAX3845 chip is a UART data receiving interface, pins 2 and 3 are request sending interfaces, and a pin 4 is a sending data interface; the pin 8 of the MAX3845 chip of the second TTL-to-RS 485 module is in 3.3V voltage input and is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, an RS485 serial port circuit of the MAX3845 chip is connected with an RS485 circuit of the backboard unit, the pin 6 of the MAX3845 chip is connected with an RS485-A of the RS485 circuit of the backboard unit, the pin 7 is connected with an RS485-B of the RS485 circuit of the backboard unit, a TTL level serial port of the MAX3845 chip is connected with a serial port 2 of the image receiving module, the pin 1 of the MAX3845 chip in the TTL level serial ports of the MAX3845 chip is a UART data receiving interface, the pins 2 and 3 are request sending interfaces, and the pin 4 is a data sending interface.

The image receiving module is connected with the image processing module to transmit image data.

The image processing module adopts an NVIDIA Jetson TX2 module, the NVIDIA Jetson TX2 module adopts a dual-core Denver 264-bit CPU and a four-core ARMA57 Complex, the GPU adopts an NVIDIAscacal architecture and is provided with 256 NVIDIACUDA cores; the system has strong image processing capacity, abundant peripheral interfaces, a fan interface and an expanded SATA interface.

Those skilled in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing the related hardware through circuit configuration, and the circuit configuration can be completed through a single chip or other integrated chips with similar functions, which is the prior art. The core utility model is characterized in that the overall structure layout of the system is designed, and the local control method can be completed by programming in the prior art; the local module connection can be realized by the prior art. Specifically in this application, the core lies in through overall structure layout design, the utility model discloses an image receiving module of host computer can draw real-time video stream from the surveillance camera head of 5T detecting station through backplate unit net gape in the 5T detecting station, can support 2 ways videos to discern simultaneously.

The image receiving module is connected with the image processing module, the image processing module intelligently identifies wearing conditions of safety helmets of workers and wearing conditions of protective clothing from video streams, and the marked video streams are issued in real time through the internet access, so that the image receiving module can be realized by referring to the prior art.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An image acquisition unit of a host in a 5T detection station is characterized by comprising a front panel unit, an interface driving module, a power supply module, an image receiving module, a data communication module and a back panel unit; the front panel unit is connected with the image receiving module through the interface driving module, the back panel unit is connected with the voltage input end of the power supply module and the data communication module, the data communication module is connected with the image receiving module, and the voltage output of the power supply module is respectively connected with the image receiving module, the interface driving module and the data communication module.

2. The image capturing unit of a host computer in a 5T detection station as claimed in claim 1, wherein said power module comprises a hot plug control circuit, a power-on sequence control circuit, and a DCDC voltage conversion circuit; the input line of the hot-plug circuit is a 12V voltage input line of the power module, and the output line is respectively connected with the power input lines of the image receiving module, the power-on time sequence control circuit and the DCDC voltage conversion circuit; the output circuit of the power-on time sequence control circuit is connected with a VIN _ PWR _ BAD _ L pin of the image receiving module; and an output line of the DCDC voltage conversion circuit is respectively connected with a voltage input line of the data communication module and the interface driving module, and a RESET _ OUT _ L pin of the image receiving module.

3. The image acquisition unit of the host computer in the 5T detection station according to claim 1, wherein the back panel unit comprises a 12V power line, an Ethernet line, a first RS485 line and a second RS485 line, wherein the 12V power line in the back panel unit is connected with a 12V voltage input line of the power module; the Ethernet line is connected with an Ethernet transformer of the data communication module; the RS485 circuit I is connected with an RS485 serial port circuit of a first TTL to RS485 conversion module in the data communication module, and the RS485 circuit II is connected with an RS485 serial port circuit of a second TTL to RS485 conversion module in the data communication module.

4. The image capturing unit of the host computer in the 5T detecting station according to claim 1, wherein the front panel unit comprises a 2-way ethernet interface, a 2-way USB interface, and a 1-way HDMI interface; the interface driving module comprises an HDMI module, a first PCIe-to-LAN module, a second PCIe-to-LAN module and a USB power management module; the 5V voltage input circuit of the HDMI module is connected with the 5V output circuit of the DC-DC voltage conversion circuit in the power module, the signal input end of the HDMI module is connected with the HDMI interface of the image receiving module, and the signal output end of the HDMI module is connected with the HDMI interface of the front panel unit; a 3.3V voltage input line of the first PCIe-to-LAN module is connected with a 3.3V output line of a DC-DC voltage conversion circuit in the power module, an Ethernet line of the first PCIe-to-LAN module is connected with a first path Ethernet interface of the front panel unit, and a PCIe interface of the first PCIe-to-LAN module is connected with a first path PCIe interface of the image receiving module; a 3.3V voltage input line of the second PCIe-to-LAN module is connected with a 3.3V output line of a DC-DC voltage conversion circuit in the power module, an Ethernet line of the second PCIe-to-LAN module is connected with a second path of Ethernet interface of the front panel unit, and a PCIe interface of the second PCIe-to-LAN module is connected with a second path of PCIe interface of the image receiving module; the 5V voltage input circuit of the USB power management module is connected with the 5V output circuit of the DC-DC voltage conversion circuit in the power module, and the voltage output circuit of the USB power management module is respectively connected with the voltage input circuits of the two USB interfaces of the front panel unit; and the data transmission lines of the first path of USB interface and the second path of USB interface of the front panel unit are respectively connected with the data transmission lines of the first path of USB interface and the second path of USB interface of the image receiving module.

5. The image capturing unit of a host computer in a 5T probing station of claim 1 wherein said data communication module comprises an ethernet transformer and two TTL to RS485 modules; the Ethernet transformer isolates the Ethernet line of the gigabit Ethernet GBE interface of the image receiving module from the Ethernet line of the backboard unit; a 3.3V voltage input circuit of the first TTL-to-RS 485 module is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, a serial port circuit of the first TTL-to-RS 485 module is connected with a first RS485 circuit of the backboard unit, and a TTL level serial port of the first TTL-to-RS 485 module is connected with a first UART interface of the image receiving module; and a 3.3V voltage input circuit of the second TTL-to-RS 485 module is connected with a 3.3V output circuit of a DC-DC voltage conversion circuit in the power module, an RS485 serial port circuit of the second TTL-to-RS 485 module is connected with a second RS485 circuit of the backboard unit, and a TTL level serial port of the second TTL-to-RS 485 module is connected with a second path of UART interface of the image receiving module.

6. The image capturing unit of a host computer in a 5T detecting station as claimed in claim 1, wherein the image receiving module is connected to the image processing module for transmitting image data.