CN117591459A - Storage device with internal control and external control switching function and switching method - Google Patents
Storage device with internal control and external control switching function and switching method Download PDFInfo
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- CN117591459A CN117591459A CN202311467252.0A CN202311467252A CN117591459A CN 117591459 A CN117591459 A CN 117591459A CN 202311467252 A CN202311467252 A CN 202311467252A CN 117591459 A CN117591459 A CN 117591459A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000006870 function Effects 0.000 claims abstract description 37
- 238000012546 transfer Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 8
- 230000006386 memory function Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0658—Controller construction arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention relates to the technical field of electronic circuits, hardware circuits and data reading and writing, in particular to a memory device with internal control and external control switching functions and a switching method, wherein the device comprises the following components: the device comprises a power supply unit, a USB interface, a USB identification unit, a USB transfer storage interface unit, a power supply switching unit, a control unit, a storage function switching unit and a storage unit. The switching method can realize that the external USB is connected into the external computer to control the storage unit at any time under the condition of electrifying the equipment (the equipment with the data recording function), the storage unit is controlled by the equipment again when the USB is pulled out, the equipment enters a data recording mode, the required data is recorded continuously according to the service requirement, and the switching between the two modes of external computer management and equipment internal management storage unit at any time is perfectly realized.
Description
Technical Field
The invention relates to the technical field of electronic circuits, hardware circuits and data reading and writing, in particular to a memory device with internal control and external control switching functions and a switching method.
Background
In electronic device applications, it is often encountered that some devices need to record important data for scientific analysis, even for the basis of significant decisions. Electronic equipment with a data recording function is generally divided into two types, wherein the first type is commercial grade equipment and common industrial grade equipment, a pluggable storage card is generally adopted, a card slot for plugging the storage card is designed in an equipment shell, when data recorded by the equipment is required to be managed, the storage card is unplugged, and the card reader is plugged into a computer to process the data recorded by the equipment so as to meet the requirements; the second type is super-industrial, automobile-grade or higher-grade equipment, the equipment has higher requirements on environmental adaptability, the characteristics of water resistance, vibration resistance and the like are required to be considered, a chip-level storage chip is often adopted, and data recorded by the equipment are managed through a computer in cooperation with an external data cable so as to meet the use requirement.
For the second type of super industrial equipment, automobile equipment or equipment with higher level requirements, the requirements on environmental adaptability are relatively high, in order to improve the environmental adaptability, the built-in chip-level storage of the equipment is often adopted to record data, the recorded data is controlled in the equipment, and the data is connected to a computer through a data port externally connected with the equipment for processing. Under the condition that the device body is required to be electrified, the device sends an instruction to the device through special software on a computer to acquire data. This approach relies on the device being powered on and the instructions of the computer specific software operating the installation site being inconvenient, increasing the difficulty of operation.
Disclosure of Invention
The invention aims to provide a storage device with internal control and external control switching functions and a switching method for equipment with data recording requirements, so as to solve the problem of high operation difficulty in the background technology.
The invention aims to provide a storage device with internal control and external control switching functions and a switching method, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a memory device having internal and external control switching functions, comprising: the device comprises an equipment internal system power supply unit, a USB interface, a USB identification unit, a USB transfer storage interface unit, a power supply switching unit, a control unit, a storage function switching unit and a storage unit;
the USB interface is respectively and electrically connected with the USB identification unit and the power supply switching unit;
the power supply unit of the system inside the equipment is electrically connected with the control unit and the power supply switching unit respectively;
the power supply switching unit is electrically connected with the storage function switching unit and the storage unit respectively;
the USB interface is in communication and electrical connection with the USB transfer storage interface unit;
the control unit is respectively in communication connection with the USB identification unit, the storage function switching unit and the power supply switching unit;
the storage function switching unit is respectively in communication connection with the USB-to-storage interface unit and the storage unit.
A switching method of memory devices is divided into a device power-on condition and a non-power-on condition,
the power-on condition comprises the following steps:
s1: the control unit initializes hardware resources corresponding to unit signals of the storage unit;
s2: carrying out mounting identification on the storage unit, and enabling the control unit to enter a data recording mode;
s3: when the USB interface is connected with an external computer, the USB identification unit collects and identifies a power supply on the USB interface of the external computer, and judges that the USB interface is connected with the external computer, and the USB identification unit transmits an identification signal to the control unit;
s4: the control unit jumps out of a data recording mode, unloads the storage unit from the control unit, and controls the power supply switching unit to switch the power supply of the storage unit and the storage function switching unit from the power supply unit of the internal system of the equipment to the USB interface for power supply; simultaneously, the control unit controls the storage function switching unit to switch the unit signal of the storage unit from the control unit control to the USB to storage interface unit control;
s5: the USB-to-storage interface unit controls the storage unit, the storage unit is identified by being re-mounted by an external computer externally connected to the USB interface, and the data of the storage unit can be managed by the external computer;
s6: when the USB interface disconnects the external computer, the USB identification unit collects and identifies that the power supply on the USB interface of the external computer disappears, and judges that the USB interface disconnects the external computer, and the USB identification unit transmits an identification signal to the control unit;
s7: the control unit resumes the data recording mode, re-mounts the storage unit, the unit signal of the storage unit is switched from the USB to the storage interface unit to the control unit, and simultaneously controls the power supply switching unit to switch the power supply of the storage unit and the storage function switching unit from the USB interface to the power supply unit of the internal system of the equipment;
the unpowered condition comprises the following steps:
s8: when the USB interface is connected with an external computer, the external computer supplies power to the power supply switching unit and the storage interface unit through the USB interface, and meanwhile, the storage function switching unit switches the unit signal of the storage unit to the USB storage interface unit for control;
s9: the USB-to-storage interface unit controls the storage unit, and the storage unit is identified through an external computer mount externally connected to the USB interface.
Preferably, the control unit controls the power switching unit through IO.
Preferably, the control unit controls the storage function switching unit through IO.
Preferably, the unit signal includes: control signals, clock signals, data signals, chip select signals, and address signals.
Compared with the prior art, the invention has the following beneficial effects:
1) The switching method can realize that the stored data is managed on an external computer through an external USB interface under the condition that equipment (equipment with a data recording function) is not electrified.
2) The switching method can realize that the external USB is connected into the external computer to control the storage unit at any time under the condition of electrifying the equipment (the equipment with the data recording function), the storage unit is controlled by the equipment again when the USB is pulled out, the equipment enters a data recording mode, the required data is recorded continuously according to the service requirement, and the switching between the two modes of external computer management and equipment internal management storage unit at any time is perfectly realized.
3) The switching method can be directly operated through the built-in storage unit of the USB mounting device of the external computer without special software operation, and is convenient.
4) The switching method is suitable for fixedly installing equipment which is not easy to dismantle, conveniently installing equipment which is retrieved at any time and equipment similar to a black box to record various scenes of monitoring the running condition of the equipment, so that the management and storage of data are simpler and more convenient.
5) The switching method can enable the device (system) which does not originally have the USB management storage function to realize storage through the USB management device (system).
The special software in the prior art means: in general, in order to acquire or manage internally recorded data, the device specially develops an upper computer software of a PC end according to the requirement, which is troublesome, and in addition, on a data link, two modes exist, namely, an external communication data port, such as an RS232 interface, of the device is utilized to connect to an external PC end, the data is acquired from the RS232 interface of the PC through the upper computer software, and then the internally stored data is acquired by matching with a lower computer control program of a device control unit; the other is that the data is obtained by USB through the USB of the device control unit and then by the program control program of the device control unit, so that the operation of the host computer special software on the PC side is troublesome, as shown in fig. 4 and 5, most of the data needs to be obtained first, the data is exported and stored on the hard disk on the PC side, and the operation is relatively troublesome. The method mentioned in the text is to directly plug the external USB interface of the device into the PC end, which is equivalent to the experience of plugging a mobile hard disk or a USB flash disk, and can be operated without the requirement of power supply to the device.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a frame diagram of an equipment module of the present invention;
FIG. 2 is a flow chart of a switching method in the power-on state of the present invention;
FIG. 3 is a flow chart of a switching method in the unpowered state of the present invention;
fig. 4 is a diagram of a conventional method of the prior art: managing stored data by adopting a USB interface of the equipment;
fig. 5 is a diagram of a second conventional mode in the prior art: the stored data is managed using a communication interface of the device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the implementation of the entire switching function includes a storage function switching unit, a power supply switching unit, a storage unit, a control unit, a USB identification unit, a USB transfer storage interface unit, a USB interface, an internal system power supply unit of the device, and an external computer.
Workflow and principle:
1) When the device is powered on:
the equipment is electrified to start working, firstly, a control unit initializes hardware resources corresponding to control signals, clock signals, data signals, chip selection signals and address signals of a storage unit, peripheral resources of the control unit are respectively configured into states in which the control signals, the clock signals, the data, the chip selection signals and the address can work, the control unit is ready for operation, after the initialization is successful, the storage unit is identified in a mounting mode, then the normal working mode is carried out, data which need to be recorded for equipment operation are recorded according to the requirements of specific services of the equipment, and the data are stored in the storage unit.
When the USB interface is connected to the USB interface of the external computer, the USB identification unit collects and identifies a 5V power supply on the USB interface of the external computer, and judges that the USB interface is connected to the external computer, the USB identification unit transmits an identification signal to the control unit, the control unit jumps out of a data recording mode, the storage unit is unloaded from the control unit, the control unit cuts the power supply of the storage unit and the storage function switching unit from the equipment system power supply to the 5V power supply of the external USB through the IO control power switching unit, and at the moment, the 5V power supply of the USB of the external computer supplies power for the storage unit and the storage function switching unit; the 5V power supply of the USB supplies power for the USB transfer and storage interface unit; meanwhile, the control unit switches the control signal, the data signal, the clock signal, the chip selection signal and the address signal of the storage unit from the control unit to the USB to storage interface unit through the IO control storage function switching unit, the USB to storage interface unit controls the storage unit, the identification storage unit is re-mounted on an external computer through the USB interface, at the moment, the external computer takes over the storage unit, manages the data of the storage unit, and can copy, modify, analyze and other relevant processes on the data on the external computer.
When the USB is pulled out from the external computer, the USB identification unit identifies that the 5V power supply of the USB is disappeared, the external USB is pulled out from the external computer, the signal is transmitted to the control unit, the control unit carries the storage unit on the control unit again for identification, and the storage unit enters a data recording mode to continue to work normally. As shown in fig. 2.
2) In the case of a device not powered on:
when the equipment is not electrified and the history data recorded by the storage unit of the equipment is required to be managed, firstly, the USB interface of the equipment is inserted into the USB interface of an external computer, the 5V power supply of the USB interface of the external computer supplies power to the power supply switching unit and the storage function switching unit of the equipment, the power supply switching unit defaults (defaults under the condition that the equipment is not electrified) to supply the 5V power supply of the USB to the storage unit and the storage function switching unit, and the 5V power supply of the USB supplies power to the USB-to-storage interface unit so that the USB-to-storage interface unit enters a working state. The memory function switching unit switches control signals, data signals, clock signals, chip selection signals and address signals of the memory unit to the USB-to-memory interface unit by default (default when the device is not powered on), and the memory unit is controlled by the USB-to-memory interface unit.
The USB conversion and storage interface unit converts control signals, data signals, clock signals, chip selection signals and address signals of the storage unit with the USB interface to realize conversion of the USB and signals of the storage unit, and the storage unit is mounted on an external computer for identification, so that data of the storage unit are read and written through the USB of the external computer. Under the condition that the device is not electrified, the computer manages the data of the storage unit, and performs relevant processing such as copying, modifying, analyzing and the like on the data, and the USB is pulled out from the computer after the data processing is completed. As shown in fig. 3.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A memory device having internal control and external control switching functions, comprising: the device comprises an equipment internal system power supply unit, a USB interface, a USB identification unit, a USB transfer storage interface unit, a power supply switching unit, a control unit, a storage function switching unit and a storage unit;
the USB interface is respectively and electrically connected with the USB identification unit and the power supply switching unit;
the power supply unit of the system inside the equipment is electrically connected with the control unit and the power supply switching unit respectively;
the power supply switching unit is electrically connected with the storage function switching unit and the storage unit respectively;
the USB interface is in communication and electrical connection with the USB transfer storage interface unit;
the control unit is respectively in communication connection with the USB identification unit, the storage function switching unit and the power supply switching unit;
the storage function switching unit is respectively in communication connection with the USB-to-storage interface unit and the storage unit.
2. A method of switching a memory device according to claim 1, wherein the switching is divided into a device power-on condition and a device power-off condition,
the power-on condition comprises the following steps:
s1: the control unit initializes hardware resources corresponding to unit signals of the storage unit;
s2: carrying out mounting identification on the storage unit, and enabling the control unit to enter a data recording mode;
s3: when the USB interface is connected with an external computer, the USB identification unit collects and identifies a power supply on the USB interface of the external computer, and judges that the USB interface is connected with the external computer, and the USB identification unit transmits an identification signal to the control unit;
s4: the control unit jumps out of a data recording mode, unloads the storage unit from the control unit, and controls the power supply switching unit to switch the power supply of the storage unit and the storage function switching unit from the power supply unit of the internal system of the equipment to the USB interface for power supply; simultaneously, the control unit controls the storage function switching unit to switch the unit signal of the storage unit from the control unit control to the USB to storage interface unit control;
s5: the USB-to-storage interface unit controls the storage unit, and the storage unit is identified by re-mounting an external computer externally connected to the USB interface;
s6: when the USB interface disconnects the external computer, the USB identification unit collects and identifies that the power supply on the USB interface of the external computer disappears, and judges that the USB interface disconnects the external computer, and the USB identification unit transmits an identification signal to the control unit;
s7: the control unit resumes the data recording mode, re-mounts the storage unit, the unit signal of the storage unit is switched from the USB to the storage interface unit to the control unit, and simultaneously controls the power supply switching unit to switch the power supply of the storage unit and the storage function switching unit from the USB interface to the power supply unit of the internal system of the equipment;
the unpowered condition comprises the following steps:
s8: when the USB interface is connected with an external computer, the external computer supplies power to the power supply switching unit and the storage interface unit through the USB interface, and meanwhile, the storage function switching unit switches the unit signal of the storage unit to the USB storage interface unit for control;
s9: the USB-to-storage interface unit controls the storage unit, and the storage unit is identified through an external computer mount externally connected to the USB interface.
3. The switching method of a memory device according to claim 2, wherein the control unit controls the power switching unit through IO.
4. The switching method of a memory device according to claim 2, wherein the control unit controls the memory function switching unit through IO.
5. A method of switching a memory device according to claim 2, wherein the cell signal comprises: control signals, clock signals, data signals, chip select signals, and address signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467252.0A CN117591459A (en) | 2023-11-06 | 2023-11-06 | Storage device with internal control and external control switching function and switching method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311467252.0A CN117591459A (en) | 2023-11-06 | 2023-11-06 | Storage device with internal control and external control switching function and switching method |
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| CN117591459A true CN117591459A (en) | 2024-02-23 |
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-
2023
- 2023-11-06 CN CN202311467252.0A patent/CN117591459A/en active Pending
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| US20120047375A1 (en) * | 2010-08-23 | 2012-02-23 | Canon Kabushiki Kaisha | Information processing apparatus, method of controlling the same, and storage medium |
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