CN210691306U

CN210691306U - Data transfer and storage device

Info

Publication number: CN210691306U
Application number: CN201922406600.9U
Authority: CN
Inventors: 张宪锋; 赵翔; 刘志刚; 柳素梅
Original assignee: Zhengzhou Think Freely Hi Tech Co ltd
Current assignee: Zhengzhou Think Freely Hi Tech Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-06-05
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a data dump device belongs to track traffic technical field. The data dump device comprises: the first connector is used for being connected with the hard disk; the second connector is used for being connected with the upper computer; the first connector and the second connector are connected with the bridging chip, the bridging chip comprises a configurable port, the configurable port is connected with a switch module, and the switch module is used for switching the state of the configurable port to realize the switching of the read-only operation and the read/write operation of the hard disk. The utility model discloses a switch module is connected at bridge chip's configurable port, can switch bridge chip's processing state through switch module, including read-only operation and read/write operation, owing to be provided with write protection in the state of read-only operation for the data in the hard disk can only be read to the host computer, and can not modify and delete, improved the reliability of data dump, just can realize through a switch module moreover, and is simpler and convenient.

Description

Data transfer and storage device

Technical Field

The utility model relates to a data dump device belongs to track traffic technical field.

Background

The major bureau of the railway transportation safety of the engineering safety affairs, in particular to the operation quality of locomotive crew members, is a way for effectively improving the operation quality of the crew members by strengthening audio and video management.

The video monitoring system on the locomotive records a large amount of data in one-time crew operation, so that a hard disk is generally used as an audio and video data storage device, the crew also needs to take the hard disk for storing audio and video to the ground for data dump when returning to work, and whether the crew has violation or not is checked through analysis of the audio and video data in the locomotive operation by ground analysts; through the supervision measures, the driving safety can be effectively guaranteed. However, when the storage device of the locomotive video monitoring system is taken to the ground, the storage device cannot be directly connected with the computer, and a data transfer storage device is needed to transfer the audio and video data from the hard disk to the computer.

In the dumping process, sometimes, audio and video data in the hard disk are directly analyzed in a computer according to the management requirements of a user. When audio and video data in a hard disk are read, viewed and analyzed, the audio and video data are easily modified or deleted due to accidental operation of an operator, no data or data loss and the like are caused during analysis, and the reliability of dump data is poor.

SUMMERY OF THE UTILITY MODEL

The present application is directed to a data transfer apparatus, which is used to solve the problems of data loss and poor dump reliability caused by misoperation.

To achieve the above object, the present invention provides a data transfer and storage device, including:

the first connector is used for being connected with the hard disk;

the second connector is used for being connected with the upper computer;

the first connector and the second connector are connected with the bridging chip, the bridging chip comprises a configurable port, the configurable port is connected with a switch module, and the switch module is used for switching the state of the configurable port to realize the switching of the read-only operation and the read/write operation of the hard disk.

The beneficial effects are that: the utility model discloses a switch module is connected at bridge connection chip's configurable port, can switch bridge connection chip's processing state through switch module, including read-only operation and read/write operation, owing to be provided with write protection in the state of read-only operation for the data in the hard disk can only be read to the host computer, and can not modify and delete, improved the reliability of data dump, the protection that just can realize data through a switch module and bridge connection chip's cooperation in addition, it is simpler and convenient.

Further, in order to improve the reliability of dumping, the switch module includes a switch, a first branch and a second branch, the first branch is connected to a high potential, the second branch is connected to a low potential, and the first branch and the second branch are connected to the configurable port through the switch, so as to realize switching of the configurable port between the high potential and the low potential.

Further, for convenience of operation, the switch is a manual switch.

Further, in order to more intuitively understand the state of the data dump device, the data dump device further comprises a state indicator lamp, and the state indicator lamp indicates the state of the configurable port.

Furthermore, in order to more intuitively know the speed of the transmission speed, the bridge chip further comprises a high-speed processing port and a low-speed processing port, the data dump device further comprises a high-speed indicator light and a low-speed indicator light, the high-speed indicator light is connected with the high-speed processing port, the low-speed indicator light is connected with the low-speed processing port, and different indications during data processing at different processing speeds are realized.

Furthermore, in order to supply power conveniently, the data dump device further comprises a power module, the power module comprises a DC-DC module, the input end of the DC-DC module is used for being connected with an upper computer through a second connector, and the output end of the DC-DC module supplies power for the bridging chip.

Furthermore, in order to realize the display of the power state, the data dump device further comprises a power indicator light, and the power indicator light is connected with the power module.

Furthermore, for carrying convenience, the first connector, the second connector and the bridging chip are arranged in a shell, and a first connecting port for connecting the first connector with the hard disk is arranged on the surface of the shell; the second connector is used for connecting the upper computer and a second connecting port is arranged on the surface of the shell.

Drawings

FIG. 1 is a block diagram of a data dump device according to the present invention;

fig. 2 is a schematic circuit diagram of the bridge chip of the present invention;

FIG. 3 is a schematic circuit diagram of a memory chip in the bridge chip peripheral circuit according to the present invention;

fig. 4 is a schematic circuit diagram of the power module of the present invention;

fig. 5 is a schematic circuit diagram of the indicating module of the present invention;

fig. 6 is a schematic circuit diagram of a second connector of the present invention;

fig. 7 is a schematic circuit diagram of the first connector of the present invention.

Detailed Description

Data dump device embodiment:

the data dump device proposed in this embodiment, as shown in fig. 1, includes a first connector, a second connector, and a hard disk protection module (i.e., a bridge chip). The first connector is used for being connected with a mobile hard disk (hard disk for short) SATA (serial ATA) interface on locomotive video monitoring, the second connector is used for being connected with an upper computer (namely a USB interface of a computer), and the first connector and the second connector are both connected with a bridging chip so as to dump audio and video data in the hard disk into the computer or directly analyze the audio and video data in the hard disk by the computer.

The bridge chip includes a bridge control chip U6 shown in fig. 2 and a memory chip U5 in a peripheral circuit of the bridge chip shown in fig. 3, the memory chip U5 may store a firmware program of the bridge control chip U6 (the firmware program is a program that the bridge control chip U6 leaves the factory and realizes switching between read-only operation and read/write operation), and device description information of the bridge control chip U6, the bridge control chip U6 includes a configurable port, a switch module is connected to the configurable port, a microcontroller is integrated inside the bridge control chip U6 to realize reading of a state of the switch module, and the switch module may switch a state of the configurable port to realize that the bridge control chip U6 controls switching between read-only operation and read/write operation of the USB interface to the hard disk.

In this embodiment, the model of the bridge control chip U6 is JMS580, and as another embodiment, the model of the bridge control chip U6 may also be JMS901, JMS585, or the like.

In this embodiment, the switch module includes a switch, a first branch and a second branch, the first branch is connected to a high potential, the second branch is connected to a low potential, and the first branch and the second branch are connected to the configurable port through the switch, so as to implement switching between the high potential and the low potential of the configurable port. Specifically, as shown in fig. 2, the configurable port is a GPIO9 pin, the high potential is a VCCO2 pin of the bridge control chip U6, the low potential is directly grounded, the first branch is connected to a switch through a resistor R14, the switch is a JB1, the switch JB1 has two

pins

1 and 2, and switching between the high potential and the low potential is achieved by connecting and disconnecting the two pins. When two

pins

1 and 2 of the switch JB1 are connected, namely the pin GPIO9 is connected with the second branch circuit, the pin GPIO9 is at a low potential, and when the bridge control chip U6 reads the low potential, the USB interface of the upper computer is controlled to operate the SATA interface of the hard disk, and audio and video data in the hard disk can be read or written; when the two

pins

1 and 2 of the switch JB1 are disconnected, that is, the pin GPIO9 is connected to the first branch, the pin GPIO9 is at a high potential, and the bridge control chip U6 reads the high potential, when the USB interface of the upper computer is controlled to operate the SATA interface of the hard disk, the audio and video data in the hard disk can only be read (enter a write protection state), so as to prevent the data of the hard disk from being modified and deleted. As other implementation manners, the utility model discloses do not do the restriction to switch module's concrete implementation form, can realize corresponding function can.

In this embodiment, change over switch is manual switch, through manual switching high low potential, as other implementation modes, the utility model discloses do not do the restriction to change over switch's form, can realize corresponding function can.

In this embodiment, the bridge control chip U6 further includes a high-speed processing port GPIO5 and a low-speed processing port GPIO4, which implement processing of data at different speeds, and when connected to a USB2.0 interface of an upper computer, a low-speed processing end is used; when the USB3.0 interface is connected to the upper computer, a high-speed processing end is adopted. As another embodiment, only one processing port may be provided.

In this embodiment, the data dump device further includes a power module as shown in fig. 4, where the power module supplies power to the bridge chip. Specifically, the power supply module includes a power supply chip U7, the power supply chip U7 is a DC-DC power conversion chip (i.e., a DC-DC module), an input end of the DC-DC module is connected to a USB interface of an upper computer through a second connector, and DC5V provided through the USB interface is converted into DC1.0V, so as to supply power for connecting the bridge control chip U6.

Of course, in order to more intuitively understand the operation state of the data dump device, as shown in fig. 5, the data dump device further includes an indication module, which includes a state indicator LED4, a high speed indicator LED3, a low speed indicator LED2, and a power indicator LED 1. The configurable port GPIO9 is connected in series in a power supply line of the status indicator light LED4, the configurable port GPIO9 is at a high potential, the status indicator light LED4 is lighted, which indicates read-only operation, and write protection is started; the configurable port GPIO9 is at low potential, and the status indicator light LED4 is off, indicating read/write operation; the high-speed indicator light LED3 is connected with the high-speed processing port GPIO5, the low-speed indicator light LED2 is connected with the low-speed processing port GPIO4, when a high-speed channel is adopted for high-speed transmission, the high-speed indicator light LED3 is lightened, and when a low-speed channel is adopted for low-speed transmission, the low-speed indicator light LED2 is lightened; the data dump device further comprises a power indicator LED1, the power indicator LED1 is connected with the power module, and after the power module is powered on, the power indicator LED1 is lighted.

In this embodiment, for convenience of carrying, the second connector J2 shown in fig. 6, the first connector J1 shown in fig. 7 and the bridge chip are integrated inside a casing (the casing is of an aluminum alloy structure), and the first connection port of the first connector J1 for connecting with a hard disk is disposed on the surface of the casing; the second connector J2 is used for being connected with the upper computer and the second connection port is arranged on the surface of the shell, and the first connection port and the second connection port are arranged at the two ends of the shell, so that the connection with the upper computer and the hard disk is convenient. The status indicator LED4, the high speed indicator LED3, the low speed indicator LED2, and the power indicator LED1 are distributed on the surface of the housing to display the operating status of the dump device. As other implementation manners, the utility model discloses do not do the restriction to the position of setting up of first connection port, second connection port and each pilot lamp, realize corresponding function can.

The utility model discloses a locomotive video monitoring system provides a dump device at ground dump audio frequency and video data, a switch module is connected at the configurable port of bridging chip, can switch the processing state of bridging chip through switch module, including read-only operation and read/write operation, owing to be provided with write protection in the state of read-only operation, make the host computer can read the data in the hard disk only, and can not modify and delete, improved the reliability of data dump, and the protection that just can realize data through the cooperation of a switch module and bridging chip, it is simpler and convenient.

Claims

1. A data transfer device, comprising:

the first connector is used for being connected with the hard disk;

the second connector is used for being connected with the upper computer;

2. The data dump device of claim 1, wherein the switch module comprises a switch, a first branch and a second branch, the first branch is connected to a high potential, the second branch is connected to a low potential, and the first branch and the second branch are connected to the configurable port through the switch to realize switching between the high potential and the low potential of the configurable port.

3. The data dump device of claim 2, wherein the toggle switch is a manual switch.

4. The data dump device of claim 1, wherein the data dump device further comprises a status indicator light, the status indicator light indicating a status of the configurable port.

5. The data dump device of claim 1, wherein the bridge chip further comprises a high speed processing port and a low speed processing port, and the data dump device further comprises a high speed indicator light and a low speed indicator light, wherein the high speed indicator light is connected with the high speed processing port, and the low speed indicator light is connected with the low speed processing port, so as to realize different indications when data processing is performed at different processing speeds.

6. The data dump device of claim 1, wherein the data dump device further comprises a power module, the power module comprises a DC-DC module, an input end of the DC-DC module is used for connecting an upper computer through a second connector, and an output end of the DC-DC module supplies power to the bridge chip.

7. The data dump device of claim 6, wherein the data dump device further comprises a power indicator light, and the power indicator light is connected with the power module.

8. The data dump device of claim 1, wherein the first connector, the second connector and the bridge chip are disposed inside a housing, and a first connection port of the first connector for connecting with a hard disk is disposed on a surface of the housing; the second connector is used for connecting the upper computer and a second connecting port is arranged on the surface of the shell.