CN109976811B - Automatic mounting method of movable storage equipment and locomotive video monitoring system - Google Patents
Automatic mounting method of movable storage equipment and locomotive video monitoring system Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
- G06F9/4413—Plug-and-play [PnP]
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
A method for automatically mounting a removable storage device, comprising: step one, acquiring a partition list of an external storage device; step two, judging whether the storage equipment is mounted according to the partition list of the external storage equipment, wherein if the inserted movable external storage equipment exists but the storage equipment is not mounted, the step three is executed; and step three, mounting the movable external storage equipment to the corresponding node directory. The method can dynamically monitor the storage device in real time, so that the storage device can be unloaded or mounted in real time, the system stability and the real-time performance of the device state are further ensured, the mobile external storage device can be mounted to the corresponding node directory in the external disk partition list, and the problem of mounted directory drift can be avoided.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to an automatic mounting method of a movable storage device and a locomotive video monitoring system.
Background
Currently, video surveillance systems have been extended to all industries as a powerful security device for security and post-analysis. In the field of rail transit, a large number of locomotives are additionally provided with a video monitoring system, the video monitoring system can carry out real-time video monitoring and recording on the road conditions, a driver cab, key parts and parts of the locomotives, and can be linked with a fireproof monitoring system, so that the mastering of the locomotive operating conditions by a crew is effectively improved, video data can be left, and analysis is facilitated.
Video monitoring system platforms in the field of rail transit are mostly developed by adopting an ARM architecture and a Linux system. Under the high pressure of safety, many users have made higher demands on the video surveillance system, such as longer storage time, higher resolution, and clearer image quality. The realization of the above requirements must be ensured by a set of stable disk mounting system.
At present, the mounting of the movable disk is mostly carried out in a static environment, and the application scene environment of the video system of the rail transit locomotive is severer. The application scenes usually have environmental factors such as electromagnetic interference, vibration impact and the like, and also have management factors such as mixed insertion use of a field disk and the like, and the factors can cause repeated unloading and mounting of a hard disk and a U disk under an embedded system, so that unsuccessful unloading or mounted directory drift is caused, video data is lost due to uncertainty of a storage path, and the stability of a video monitoring system is further influenced.
Disclosure of Invention
In order to solve the above problem, the present invention provides an automatic mounting method for a removable storage device, where the method includes:
step one, acquiring a partition list of an external storage device;
step two, judging whether the storage equipment is mounted according to the external storage equipment partition list, wherein if the inserted movable external storage equipment exists but the storage equipment is not mounted, the step three is executed;
and step three, mounting the removable external storage equipment to a corresponding node directory.
According to an embodiment of the present invention, in the third step, after the removable external storage device is mounted to the corresponding node directory, preset data is written into the removable external storage device, and it is determined whether the removable external storage device is mounted successfully according to a writing state.
According to an embodiment of the invention, in said step three,
if the preset data can be normally written into the removable external storage device, determining that the mounting of the removable external storage device is successful;
and if the preset data is not normally written into the removable external storage device, determining that the removable external storage device is not mounted successfully, and re-mounting the removable external storage device.
According to an embodiment of the present invention, in the third step, the file type of the removable external storage device is further obtained, and it is determined whether the file type of the removable external storage device matches a preset file type, wherein,
if the node directories are matched with the external storage equipment, mounting the external storage equipment to the corresponding node directories;
and if not, performing formatting and partitioning operation on the removable external storage device to convert the file type of the removable external storage device into the preset file type.
According to an embodiment of the present invention, the method further obtains device information of the removable external storage device, determines a device type of the removable external storage device according to the device information, and mounts the removable external storage device to the corresponding node directory based on the device type.
According to one embodiment of the invention, the device information includes device storage capacity, and the device type of the removable external storage device is determined according to the device storage capacity.
According to one embodiment of the invention, if the storage capacity of the device is larger than the preset storage capacity, the removable external storage device is determined as a first type of storage device;
and if the storage capacity of the equipment is less than or equal to the preset storage capacity, determining the removable external storage equipment as a second type of storage equipment.
According to an embodiment of the invention, in the second step, if there is no inserted removable external storage device but the storage device is mounted, the removable external storage device is unloaded according to the mounted storage device.
According to an embodiment of the invention, in the second step, if there is an inserted removable external storage device and the storage device is mounted, the state information of the removable external storage device is obtained, and the removable external storage device is set as the readable and writable attribute.
The invention also provides a locomotive video monitoring system which is characterized in that the system adopts the method as described in any one of the above to automatically mount the removable storage device.
Due to repeated mounting and repeated unloading operations of the storage device caused by repeated plugging and unplugging applications on the site, the conventional mounting method of the storage device may cause unsuccessful unloading or abnormal mounting caused by mounting catalog drift, thereby causing data loss. The method provided by the invention can dynamically monitor the storage equipment in real time, so that the storage equipment is unloaded or mounted in real time, and the stability of the system and the real-time performance of the equipment state are further ensured. The method mounts the movable external storage device to the corresponding node directory in the external disk partition list, so that the problem of mounted directory drift can be avoided.
Meanwhile, as the file systems of the storage devices of different manufacturers are not uniform, the problem that the movable external storage devices of part of manufacturers can be normally mounted and the movable external storage devices of part of manufacturers cannot be normally mounted can be caused.
In addition, the method can also distinguish the type of the removable external storage device, so that different use requirements of users on different types of storage devices can be met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required in the description of the embodiments or the prior art:
FIG. 1 is a flow chart illustrating an implementation of an automatic mount method for a removable storage device according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an implementation process of mounting a removable external storage device based on a device type according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details or with other methods described herein.
Additionally, the steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions and, although a logical order is illustrated in the flow charts, in some cases, the steps illustrated or described may be performed in an order different than here.
In view of the above problems in the prior art, the present invention provides a new automatic mounting method for a removable storage device and a locomotive video monitoring system using the same for mounting the removable storage device. Fig. 1 shows a schematic flow chart of implementing the automatic mount method for the removable storage device in this embodiment.
As shown in fig. 1, in the method for automatically mounting a removable storage device according to this embodiment, in step S101, a partition list of an external storage device is obtained. Specifically, in this embodiment, the method preferably checks the partition list of the external storage device through a related instruction (e.g.,/proc/subpaction) in step S101. Of course, in other embodiments of the present invention, the method may also use other reasonable ways to obtain the partition list of the external storage device, and the present invention is not limited thereto.
After obtaining the partition list of the external storage device, the method determines whether the storage device is mounted according to the partition list of the external storage device in step S102. Specifically, in this embodiment, the method preferably determines whether the directory has mounted the external storage device by detecting the mounted node directory. The method can determine whether the disk is mounted or not from the first disk beginning with "sd" or "hd" according to the default ordering in the external storage device partition list.
For example, for a hard disk, the method may detect a mount node directory mnt/disk to determine whether the directory has mounted an external storage device; for the USB device, the method can detect the mounted node directory mnt/USB to determine whether the directory has mounted the external storage device.
Of course, in other embodiments of the present invention, the method may also use other reasonable ways to determine whether the storage device is mounted, and the present invention is not limited thereto.
In this embodiment, if the storage device is not mounted (for example, there is an inserted removable external storage device but the storage device is not mounted), then the method will mount the removable external storage device to the corresponding node directory in step S103.
In this embodiment, optionally, the method may further mount the removable external storage device in combination with the device type of the removable external storage device. Specifically, as shown in fig. 2, the method obtains device information of the removable external storage device in step S201, and determines a device type of the removable external storage device according to the device information in step S202.
For example, the device information of the removable external storage device acquired by the method in step S201 may include a device storage capacity, and after the device storage capacity is obtained, the method may determine the device type of the removable external storage device according to the size of the device storage capacity.
Specifically, the method can compare the device storage capacity of the removable external storage device with the preset storage capacity. If the storage capacity of the device is larger than the preset storage capacity, the method can determine that the removable external storage device is a first type of storage device (such as a hard disk); if the storage capacity of the device is less than or equal to the preset storage capacity, the method can determine that the removable external storage device is a second type storage device (for example, a USB memory).
It should be noted that, in different embodiments of the present invention, the value of the preset storage capacity for determining the device type of the removable external storage device may be configured to be different reasonable values according to actual situations, and the present invention does not limit the specific value of the preset storage capacity.
After determining the device type of the removable external storage device, the method determines whether the storage device is mounted according to the partition list of the external storage device in step S203. Wherein if the storage device is not mounted, the method also mounts the removable external storage device to the corresponding node directory based on the device type in step S204.
For example, if the device type of the removable external storage device is a hard disk, the method detects in step S203 whether there is a mounted hard disk in the corresponding node directory in the partition list of the external storage device, wherein if there is no mounted hard disk, the method also mounts the hard disk to the corresponding node directory in step S204.
After completing the mount operation of the removable external storage device, the prior art usually determines whether the storage device is successfully mounted to the corresponding node directory according to the df command or by looking at mount files. However, these methods have certain disadvantages, such as the problem that the storage device cannot be used after the mounting is completed. In particular, the existing method may still fail to write data to the storage device when the df command output indicates that the mounting of the storage device is normal.
In view of the above problem, the method provided by this embodiment preferably determines whether the mounting of the removable external storage device is successful by writing the test file. Specifically, as shown in fig. 2, in this embodiment, after the removable external storage device is mounted to the corresponding node directory, the method writes preset data into the removable external storage device in step S205, and determines whether the preset data can be normally written into the removable external storage device in step S206.
If the preset data can be normally written into the removable external storage device, the method may determine in step S207 that the mounting of the removable external storage device is successful; if the preset data is not normally written into the removable external storage device, the method may determine that the removable external storage device is not mounted successfully in step S208, and at this time, the method may mount the removable external storage device again.
Specifically, in this embodiment, the method may reinstall the removable external storage device by resetting the power supply of the removable external storage device.
Of course, in other embodiments of the present invention, the method may also use other reasonable ways to determine whether the mount of the removable external storage device is successful, and the present invention is not limited thereto.
In this embodiment, before the removable external storage device is mounted to the corresponding node directory, optionally, the method may further check a file type of the removable external storage device. Specifically, the method obtains the file type of the removable external storage device, and judges whether the file type of the removable external storage device is matched with a preset file type. If the file type of the removable external storage device is matched with the preset file type, the method mounts the removable external storage device to a corresponding node directory in step S204; if the file type of the removable external storage device is not matched with the preset file type, the method can perform formatting and partitioning operations on the removable external storage device, so that the file type of the removable external storage device is converted into the preset file type.
For example, if the file type of the removable external storage device is a file type such as NTFS, ext3, or ext4, and the file type (i.e., the predetermined file type) of the node directory that the removable external storage device needs to mount is FAT32, the removable external storage device cannot be directly mounted on the node directory, and therefore, the method performs formatting and partitioning operations on the removable external storage device, so as to forcibly convert the file type of the removable external storage device into FAT 32.
If the method determines in step S102 that the storage device is mounted according to the partition list of the external storage device, the method further determines in step S104 whether the mounted storage device is unplugged.
If the storage device is unplugged (i.e., there is no removable external storage device plugged in but the storage device is still mounted), then the method proceeds to uninstall the removable external storage device in step S106.
If the storage device is not unplugged (i.e. there is a removable external storage device inserted and the storage device is still mounted), the method will acquire the state information of the removable external storage device in step S105, and set the removable external storage device as a readable and writable attribute, thereby ensuring that the removable external storage device can normally read and write data.
In this embodiment, after the device mount operation of step S103, the device unload operation of step S106, or the device state control operation of step S105 is completed, the method enters the next cycle and re-executes step S101, so as to periodically execute the above-mentioned process.
Due to repeated mounting and repeated unloading operations of the storage device caused by repeated plugging and unplugging applications on site, the conventional mounting method of the storage device may cause unsuccessful unloading or abnormal mounting caused by mounting catalog drift, thereby causing data loss. The method provided by the invention can dynamically monitor the storage equipment in real time, so that the storage equipment is unloaded or mounted in real time, and the stability of the system and the real-time performance of the equipment state are further ensured. The method mounts the movable external storage device to the corresponding node directory in the external disk partition list, so that the problem of mounted directory drift can be avoided.
Meanwhile, as the file systems of the storage devices of different manufacturers are not uniform, the problem that the movable external storage devices of part of manufacturers can be normally mounted and the movable external storage devices of part of manufacturers cannot be normally mounted can be caused.
In addition, the method can also distinguish the type of the removable external storage device, so that different use requirements of users on different types of storage devices can be met.
It is to be understood that the disclosed embodiments of the invention are not limited to the particular structures or process steps disclosed herein, but extend to equivalents thereof as would be understood by those skilled in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase "one embodiment" or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
While the above examples are illustrative of the principles of the present invention in one or more applications, it will be apparent to those of ordinary skill in the art that various changes in form, usage and details of implementation can be made without departing from the principles and concepts of the invention. Accordingly, the invention is defined by the appended claims.
Claims (6)
1. A method for automatically mounting a removable storage device, the method comprising:
step one, acquiring a partition list of an external storage device;
step two, judging whether the storage equipment is mounted according to the external storage equipment partition list, wherein if the inserted movable external storage equipment exists but the storage equipment is not mounted, the step three is executed;
if the inserted movable external storage equipment does not exist but the storage equipment is mounted, unloading the movable external storage equipment according to the mounted storage equipment;
if the inserted removable external storage equipment exists and the storage equipment is mounted, acquiring the state information of the removable external storage equipment, and setting the removable external storage equipment to be readable and writable;
step three, mounting the removable external storage device to a corresponding node directory, writing preset data into the removable external storage device, and determining whether the mounting of the removable external storage device is successful according to a writing state, wherein,
if the preset data can be normally written into the removable external storage device, determining that the mounting of the removable external storage device is successful;
and if the preset data is not normally written into the removable external storage device, determining that the removable external storage device is not mounted successfully, and re-mounting the removable external storage device in a mode of resetting a power supply of the removable external storage device.
2. The method according to claim 1, wherein in step three, the file type of the removable external storage device is further obtained, and it is determined whether the file type of the removable external storage device matches a preset file type, wherein,
if the node directories are matched with the external storage equipment, mounting the external storage equipment to the corresponding node directories;
and if not, performing formatting and partitioning operation on the removable external storage device to convert the file type of the removable external storage device into the preset file type.
3. The method according to claim 1 or 2, wherein the method further obtains device information of the removable external storage device, determines a device type of the removable external storage device according to the device information, and mounts the removable external storage device to the corresponding node directory based on the device type.
4. The method of claim 3, wherein the device information includes device storage capacity, and wherein the device type of the removable add-on storage device is determined based on the device storage capacity.
5. The method of claim 4, wherein if the device storage capacity is greater than a preset storage capacity, determining the removable external storage device as a first type of storage device;
and if the storage capacity of the equipment is less than or equal to the preset storage capacity, determining the removable external storage equipment as a second type of storage equipment.
6. A locomotive video surveillance system, characterized in that it employs the method according to any of claims 1-5 for automatic mounting of removable storage devices.
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| CN201711443648.6A CN109976811B (en) | 2017-12-27 | 2017-12-27 | Automatic mounting method of movable storage equipment and locomotive video monitoring system |
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| CN201711443648.6A CN109976811B (en) | 2017-12-27 | 2017-12-27 | Automatic mounting method of movable storage equipment and locomotive video monitoring system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111538462A (en) * | 2020-04-28 | 2020-08-14 | 深圳市元征科技股份有限公司 | Formatting method and device for external storage equipment and related equipment |
| CN114386113A (en) * | 2021-12-23 | 2022-04-22 | 北京北信源软件股份有限公司 | A mobile storage device read-write control method, device, device and storage medium |
| CN115079901A (en) * | 2022-06-08 | 2022-09-20 | Oppo广东移动通信有限公司 | Interface display method, device, storage medium and terminal |
| CN116303282A (en) * | 2023-03-01 | 2023-06-23 | 深圳市大晶光电科技有限公司 | A built-in method, system, terminal and storage medium for data files |
| CN119149505A (en) * | 2024-11-20 | 2024-12-17 | 深圳市麦谷科技有限公司 | File pre-allocation method, device, equipment and storage medium |
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