CN113849019A - Intelligent management system and method based on CFexpress card reader - Google Patents
Intelligent management system and method based on CFexpress card reader Download PDFInfo
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- CN113849019A CN113849019A CN202111084073.XA CN202111084073A CN113849019A CN 113849019 A CN113849019 A CN 113849019A CN 202111084073 A CN202111084073 A CN 202111084073A CN 113849019 A CN113849019 A CN 113849019A
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- 238000000034 method Methods 0.000 title abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 230000033228 biological regulation Effects 0.000 claims abstract description 6
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 238000007726 management method Methods 0.000 claims description 41
- 230000006870 function Effects 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000005094 computer simulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0095—Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
Abstract
The invention discloses an intelligent management system and method based on a CFexpress card reader, which relate to the field of data reading and comprise the following steps: and the access sensing module outputs a starting signal when detecting that the CFexpress card is accessed to the CFexpress card reader. And the rate adjusting module is used for adjusting the data transmission rate of the CFexpress card from a low rate to a high rate. The temperature control adjusting module is used for adjusting the running temperature threshold value of the CFexpress card from a low threshold value to a high threshold value, acquiring the real-time temperature of the CFexpress card and controlling the running temperature of the CFexpress card to be lower than the high threshold value through cooling operation; and the controller is also used for outputting a speed regulating signal when the operating temperature of the CFexpress card exceeds a high threshold value. And the speed regulation module is used for acquiring the real-time temperature of the CFexpress card when the speed regulation signal is received, and reducing the data transmission speed of the CFexpress card through speed limiting operation so as to control the operating temperature of the CFexpress card below a high threshold value. The invention can improve the card reading speed, ensure the temperature to be in a safe range and improve the management capability of the card reading system.
Description
Technical Field
The invention relates to the technical field of data reading, in particular to an intelligent management system and method based on a CFexpress card reader.
Background
The Cfexpress card reader is a data reading and writing device for a Cfexpress card, and mainly functions to convert an NVMe interface of the Cfexpress card into another protocol interface (usually, a USB), so that the NVMe interface can be identified by a Host and data reading and writing can be performed. CFexpress caine has the characteristics of small volume, high transmission speed and the like, is generally applied to photographic equipment with a voltage of more than 4K, and cannot be directly interconnected with Host in most cases due to a special CFexpress interface form, and a CFexpress card reader is usually used for carrying out protocol conversion on an interface, and has a structure shown in fig. 1.
As shown in fig. 1, the CFexpress card reader is used as an intermediate device for connecting the Host and the CFexpress card, communicates with the Host through a USB protocol, communicates with the CFexpress card through an NVMe protocol, and transparently transfers data of the CFexpress card and the Host to each other through protocol conversion, so that data connection can be established between the CFexpress card and the Host.
The method is the most common application mode of the current CFexpress card reader, the most important core of the method is to solve the problem of data transmission between the CFexpress card and the Host, but the method only solves the problem of data transmission, and certain defects still exist in the aspects of data transmission management and system management of the CFexpress card reader.
Because the existing CFexpress card is applied to a camera device, the power consumption problem of the handheld device such as a camera is primarily considered in the design, and the purpose of reducing the power consumption of the device is generally achieved by reducing the transmission rate. The design of reducing power consumption by speed reduction does achieve a good energy-saving effect on the photographic equipment, but when the CFexpress card reader reads the CFexpress card, it is not necessary to keep the CFexpress card in a low power consumption and low data transmission rate state. In this case, the design of reducing power consumption by reducing speed limits the performance of the CFexpress card, and affects the performance requirements of the user in actual use.
The existing CFexpress card reader can not actively control the data transmission speed in the process of reading and writing the CFexpress card, so that the data is seriously heated in the long-time reading and writing process, the transmission speed is influenced if the data is seriously heated, the transmission speed is reduced, and the control chip of the CFexpress card reader or the CFexpress card is overheated and fails if the data is seriously heated, so that the system and the data are lost, and the practical use of a user is influenced.
The existing CFexpress card reader establishes a data connection between the Host and the CFexpress card, but it only executes the simplest communication logic, i.e. transparent transmission of data at both ends. The transmission data and the CFexpress state are not managed, so that the application scene is single. Under the condition that the application requirements of the CFexpress card are more and more complicated, the card reader structure only meeting data transmission is difficult to meet the practical use requirements of users for various special application scenes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to overcome the defects in the prior art and provides an intelligent management system and method based on a CFexpress card reader, which can be accessed to the card reading operation between the CFexpress card reader and the CFexpress card, actively control the temperature and the transmission rate of the CFexpress card reader and the CFexpress card and improve the system management function.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
an intelligent management system based on a CFexpress card reader, comprising:
preferably, the intelligent management system based on the CFexpress card reader is integrated in the CFexpress card, and is connected with the CFexpress card through an OutBand interface.
Preferably, when the rate adjusting module performs the rate limiting operation, the temperature control adjusting module is further configured to perform the temperature reducing operation.
Preferably, the intelligent management system based on the CFexpress card reader further includes:
the mode adjusting module is used for adjusting the operation mode of the CFexpress card according to a user instruction, the historical state of the CFexpress card and a Host instruction when receiving the starting signal;
the operation modes of the CFexpress card include a normal mode, a read only mode, and a secure mode.
Preferably, in the normal mode, all functions of the CFexpress card operate normally;
in the read-only mode, all functions of the CFexpress card except for write operation run normally;
in the secure mode, all functions of the CFexpress card except for the read operation are prohibited from running.
Preferably, the user instruction is input by a user through a CFexpress card;
the historical state of the CFexpress card is obtained by acquiring the operation information of the CFexpress card by a mode adjusting module;
the Host instruction is obtained by the user through Host input.
Preferably, the historical state of the CFexpress card includes a safe operation state and an abnormal operation state.
An intelligent management method based on a CFexpress card reader comprises the following steps:
step S1, detecting the interface state of the CFexpress card reader, and outputting a starting signal when the interface state is the CFexpress card;
step S2, according to the starting signal, adjusting the data transmission rate of the CFexpress card from a low rate to a high rate, and adjusting the operation temperature threshold of the CFexpress card from a low threshold to a high threshold;
step S3, collecting the real-time temperature of the CFexpress card, and judging whether the real-time temperature is below a high threshold value:
if so, controlling the running temperature of the CFexpress card below a high threshold value through cooling operation;
if not, outputting a speed regulating signal;
and step S4, reducing the data transmission rate of the CFexpress card through rate limiting operation according to the speed regulating signal so as to control the operating temperature of the CFexpress card below a high threshold value.
Preferably, the ramp down operation is performed simultaneously with the rate limiting operation.
Preferably, the intelligent management method based on the CFexpress card reader further includes:
adjusting the running mode of the CFexpress card according to the starting signal and by combining a user instruction, the historical state of the CFexpress card and a Host instruction;
the operation modes of the CFexpress card include a normal mode, a read only mode, and a secure mode.
Compared with the prior art, the invention has the advantages that:
the CFexpress card reader and the CFexpress card can be accessed in the card reading operation between the CFexpress card reader and the CFexpress card, the temperature and the transmission rate of the CFexpress card reader and the CFexpress card during the card reading operation are actively controlled, the transmission rate is improved, the temperature is ensured to be in a safe range, and the management capability of a card reading system is improved.
Drawings
Fig. 1 is a schematic diagram of a CFexpress card reader in the prior art as an intermediate device for connecting a Host card and a CFexpress card.
Fig. 2 is a functional module diagram of an intelligent management system based on a CFexpress card reader in an embodiment of the present invention.
Fig. 3 is a flowchart of an intelligent management method based on a CFexpress card reader in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Cfexpress (compact Flash express): a PCIe3.0-based camerawork storage device.
Host (Host): a host computer is typically defined as a large, time-division computer system in a centralized computer model, in which a plurality of terminals communicate with it and rely on it for processing.
USB (Universal Serial Bus): a general data transmission protocol.
NVMe (Non-Volatile Memory Express): a Solid State Disk (SSD) interface protocol based on PCIe (PCI express) data transmission.
Out band (out-of-band signal): unlike in-band signals, a protocol specifies signals outside of the electrical characteristics.
Read Only mode: a mode in which write operations are not possible.
Safe Mode: a special working mode is a mode only capable of reading operation, and data loss can be avoided when a CFexpress card fails.
As shown in fig. 2, the present application provides an intelligent management system based on a CFexpress card reader, which includes an access sensing module 1, a rate adjustment module 2, a temperature control adjustment module 3, and a rate adjustment module 2. The access sensing module 1 is used for outputting a starting signal when sensing that the CFexpress card is accessed to the CFexpress card reader. The rate adjusting module 2 is configured to adjust the data transmission rate of the CFexpress card from a low rate to a high rate after receiving the start signal, so as to avoid the low rate when the CFexpress card is still mounted on the photographing and imaging device, improve the data transmission rate of the CFexpress card, and avoid ineffective deceleration. The temperature control adjusting module 3 is configured to, after receiving the start signal, increase the operating temperature threshold of the CFexpress card from a low threshold to a high threshold, to avoid the low threshold when the CFexpress card is still mounted on the photographic apparatus, and increase the operating temperature threshold of the CFexpress card, so that the CFexpress card is kept at a high data transmission rate as much as possible, but if the operating temperature of the CFexpress card still exceeds the set high threshold after a cooling operation is performed for a period of time during the card reading process, the temperature control adjusting module 3 outputs a speed adjustment signal. After receiving the speed regulation signal, the speed regulation module 2 reduces the data transmission speed of the CFexpress card through the speed limiting operation so as to control the operation temperature of the CFexpress card below a high threshold value.
When the card reading operation is carried out, one end of the CFexpress card reader is connected with the Host, the other end of the CFexpress card reader is connected with the CFexpress card, and the intelligent management system is installed on the CFexpress card reader. When the card reading operation is carried out, the CFexpress card and the CFexpress card reader are tightly installed together, and the temperature and the data transmission rate of the CFexpress card and the CFexpress card reader are mutually influenced and consistent, so the operating temperature of the CFexpress card is also the operating temperature of the CFexpress card reader, the cooling operation on the CFexpress card can be equally replaced by the cooling operation on the CFexpress card reader, and the rate limiting operation on the CFexpress card can be equally replaced by the rate limiting operation on the CFexpress card reader.
In this embodiment, an intelligent management system is added on the basis of the design structure of the existing CFexpress card reader, and a function module for system management is added on the basis of data transmission in the original CFexpress card reader structure with a single function.
By increasing the data transmission rate of the CFexpress card from a low rate to a high rate, the read-write performance of the CFexpress card on the CFexpress card reader is improved. By raising the operating temperature threshold of the CFexpress from a low threshold to a high threshold, the CFexpress card is kept in a state of a high data transfer rate for as long as possible.
Furthermore, the active heat dissipation capacity of the CFexpress card is controlled through the temperature control adjusting module 3, and the heating degree of the CFexpress card is adjusted through the rate adjusting module 2, so that the CFexpress card can keep a state of high data transmission rate.
The intelligent management system actively intervenes in data transmission control between the Host card and the CFexpress card, so that the transmission rate and the temperature rise are kept relatively balanced, the maximum transmission rate is exerted, the performance of data transmission of the CFexpress card on the CFexpress card reader is completely released, the effects of reducing power consumption on the photographic equipment and running on the CFexpress card reader at full speed are achieved under the existing design, and various negative effects caused by low user requirements due to the fact that the existing CFexpress card reader is simple in structure and single in function are solved.
In a preferred embodiment, the intelligent management system based on the CFexpress card reader is integrated in the CFexpress card reader, and is connected to the CFexpress card through an OutBand interface.
In this embodiment, an intelligent management system is added to the existing CFexpress card reader structure to manage the CFexpress card, and the system establishes a management connection with the CFexpress card through an Outband interface to manage the operating state of the CFexpress card.
In the process of establishing data connection between the CFexpress card reader and the CFexpress card, the intelligent management system can identify the CFexpress card, and the access sensing module 1 can send signals through the OutBand communication interface, so that the CFexpress card is prevented from entering a low-rate mode, the power consumption is improved, and the data reading and writing rate of the Host to the CFexpress card is improved.
In a preferred embodiment, when the rate adjustment module 2 performs the rate limiting operation, the temperature control adjustment module 3 is further configured to perform the cooling operation, that is, the temperature control adjustment module 3 always cools the CFexpress card and the CFexpress card reader when reading the card, rather than avoiding the temperature of the CFexpress card and the CFexpress card reader from being too high. When the intelligent management system considers that the CFexpress card has the possibility of over-temperature, the temperature control adjusting module 3 is firstly involved, the temperature is reduced through physical cooling means such as a fan, if the temperature control reaches the maximum effect, the temperature trend can not be controlled, the speed is reduced through the rate adjusting module 2, but the temperature control adjusting module 3 works all the time. In this embodiment, the rate adjustment module 2 may monitor the internal temperature of the CFexpress card in real time, and when the temperature exceeds the operating temperature threshold, the rate adjustment module 2 may adjust the data transmission rate of the CFexpress card, and achieve the effect of reducing the temperature rise by reducing the power consumption in a manner of limiting the data transmission rate, and the rate adjustment module 2 may adjust the transmission rate and the temperature rise according to the control of the related algorithm, so that the transmission rate and the temperature rise achieve a relatively stable balance.
Different from the rate adjusting module 2, the temperature control adjusting module 3 starts to operate from the start of the work of the CFexpress card, and the temperature control adjusting module 3 adjusts the heat dissipation before reaching the operation temperature threshold value through collecting the real-time temperature of the CFexpress card, so that the temperature rise can be controlled below the operation temperature threshold value before the rate adjusting module 2 limits the rate.
The internal temperature of the CFexpress card is monitored in real time through an intelligent management system, so that the balance point between the transmission rate and the temperature rise of the CFexpress card is kept, and the full-speed operation of the read-write rate under the current working condition is ensured.
In a preferred embodiment, the intelligent management system based on a CFexpress card reader further includes:
and the mode adjusting module is used for adjusting the operation mode of the CFexpress card according to the user instruction, the historical state of the CFexpress card and the Host instruction when the starting signal is received. The user instruction is obtained by inputting through the CFexpress card by a user, the historical state of the CFexpress card is obtained by collecting the operation information of the CFexpress card through the mode adjusting module, and the Host instruction is obtained by inputting through the Host by the user. The history state of the CFexpress card includes a safe operation state and an abnormal operation state.
The operation modes of the CFexpress card include:
in normal mode, all functions of the CFexpress card operate normally.
And in the read-only mode, all functions of the CFexpress card except for the write operation normally run in the safe mode, and all functions of the CFexpress card except for the read operation are forbidden to run.
In this embodiment, the mode adjustment module may adjust the operating state of the CFexpress card through an OutBand signal by using control logic such as user operation, the history state of the CFexpress card, and a Host related command. For example, a user controls the CFexpress card to enter a read-only mode through an external switch of the CFexpress card reader, so that the user can only read data on the CFexpress card but cannot modify the data, and the data on the card can be prevented from being modified by misoperation of the user. Or reading the historical state of the CFexpress card, judging the historical working temperature, abnormal state, warning and other information on the card, confirming whether the CFexpress card has the trend of destroying data, and if so, enabling the CFexpress card to enter a safety mode. Therefore, the requirements of users in some special working scenes are met, customized related requirements are realized, and higher functions such as a read-only mode, a safety mode, even encryption starting, destruction and the like are completed.
As shown in fig. 3, the present invention further provides an intelligent management method based on a CFexpress card reader, including:
and step S1, detecting the interface state of the CFexpress card reader, and outputting a starting signal when the interface state is the CFexpress card is accessed.
And step S2, adjusting the data transmission rate of the CFexpress card from a low rate to a high rate and adjusting the operation temperature threshold of the CFexpress card from a low threshold to a high threshold according to the starting signal.
Step S3, collecting the real-time temperature of the CFexpress card, and judging whether the real-time temperature is below a high threshold value:
if yes, go to step S4;
if not, go to step S5;
and step S4, controlling the running temperature of the CFexpress card to be below a high threshold value through cooling operation, and ending the operation.
And 5, outputting a speed regulating signal, and then turning to the step S6.
And step S6, reducing the data transmission rate of the CFexpress card through rate limiting operation according to the speed regulating signal so as to control the operating temperature of the CFexpress card below a high threshold value.
In this embodiment, the read-write performance of the CFexpress card on the CFexpress card reader is improved by increasing the data transmission rate of the CFexpress card from a low rate to a high rate. By raising the operating temperature threshold of the CFexpress from a low threshold to a high threshold, the CFexpress card is kept in a state of a high data transfer rate for as long as possible. The active heat dissipation capacity and the heating degree of the CFexpress card are controlled, so that the CFexpress card can keep a high data transmission rate state.
In a preferred embodiment, in step S4, when the operating temperature of the CFexpress card is controlled below the high threshold by the speed limiting operation, a speed regulation success signal is output, and then the process goes to step S3.
In a preferred embodiment, the intelligent management method based on the CFexpress card reader further includes:
and adjusting the operation mode of the CFexpress card according to the starting signal and combining the user instruction, the historical state of the CFexpress card and the Host instruction.
The operation modes of the CFexpress card include a normal mode, a read only mode, and a secure mode.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. An intelligent management system based on a CFexpress card reader, comprising:
the access sensing module is used for outputting a starting signal when detecting that the CFexpress card is accessed to the CFexpress card reader;
the rate adjusting module is used for adjusting the data transmission rate of the CFexpress card from a low rate to a high rate when receiving the starting signal; the CFexpress card monitoring system is also used for acquiring the real-time temperature of the CFexpress card when the speed regulation signal is received, and reducing the data transmission rate of the CFexpress card through rate limiting operation so as to control the running temperature of the CFexpress card below a high threshold value;
the temperature control adjusting module is used for adjusting the running temperature threshold value of the CFexpress card from a low threshold value to a high threshold value when receiving the starting signal, acquiring the real-time temperature of the CFexpress card, and controlling the running temperature of the CFexpress card below the high threshold value through cooling operation; and the controller is also used for outputting a speed regulating signal when the operating temperature of the CFexpress card exceeds a high threshold value.
2. The CFexpress card reader-based intelligent management system as claimed in claim 1, wherein the CFexpress card reader-based intelligent management system is integrated in a CFexpress card, and is connected to the CFexpress card through an OutBand interface.
3. The CFexpress card reader-based smart management system of claim 1, wherein the rate adjustment module is further configured to perform the cooling operation while performing the rate limiting operation.
4. The CFexpress card reader-based intelligent management system as claimed in claim 1, wherein the CFexpress card reader-based intelligent management system further comprises:
the mode adjusting module is used for adjusting the operation mode of the CFexpress card according to a user instruction, the historical state of the CFexpress card and a Host instruction when receiving the starting signal;
the operation modes of the CFexpress card include a normal mode, a read only mode, and a secure mode.
5. The CFexpress card reader-based intelligent management system as claimed in claim 4, wherein in the normal mode, all functions of the CFexpress card are normally operated;
in the read-only mode, all functions of the CFexpress card except for write operation run normally;
in the secure mode, all functions of the CFexpress card except for the read operation are prohibited from running.
6. The CFexpress card reader-based intelligent management system as claimed in claim 4, wherein the user instruction is input by a user through a CFexpress card;
the historical state of the CFexpress card is obtained by acquiring the operation information of the CFexpress card by a mode adjusting module;
the Host instruction is obtained by the user through Host input.
7. The CFexpress card reader-based intelligent management system as claimed in claim 4, wherein the history state of the CFexpress card includes a safe operation state and an abnormal operation state.
8. An intelligent management method based on a CFexpress card reader is characterized by comprising the following steps:
step S1, detecting the interface state of the CFexpress card reader, and outputting a starting signal when the interface state is the CFexpress card;
step S2, according to the starting signal, adjusting the data transmission rate of the CFexpress card from a low rate to a high rate, and adjusting the operation temperature threshold of the CFexpress card from a low threshold to a high threshold;
step S3, collecting the real-time temperature of the CFexpress card, and judging whether the real-time temperature is below a high threshold value:
if so, controlling the running temperature of the CFexpress card below a high threshold value through cooling operation;
if not, outputting a speed regulating signal;
and step S4, reducing the data transmission rate of the CFexpress card through rate limiting operation according to the speed regulating signal so as to control the operating temperature of the CFexpress card below a high threshold value.
9. The CFexpress card reader-based intelligent management method as claimed in claim 8, wherein the cooling down operation is performed simultaneously with the rate limiting operation.
10. The CFexpress card reader-based intelligent management method according to claim 8, wherein the CFexpress card reader-based intelligent management method further comprises:
adjusting the running mode of the CFexpress card according to the starting signal and by combining a user instruction, the historical state of the CFexpress card and a Host instruction;
the operation modes of the CFexpress card include a normal mode, a read only mode, and a secure mode.
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