CN110418333B - Method and device for USIM to acquire image through terminal - Google Patents
Method and device for USIM to acquire image through terminal Download PDFInfo
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- CN110418333B CN110418333B CN201910677588.7A CN201910677588A CN110418333B CN 110418333 B CN110418333 B CN 110418333B CN 201910677588 A CN201910677588 A CN 201910677588A CN 110418333 B CN110418333 B CN 110418333B
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
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Abstract
The invention provides a method and a device for a USIM to acquire images through a terminal.A USIM generates an image acquisition instruction and sends the image acquisition instruction to terminal equipment, the terminal equipment acquires equipment information carried in the image acquisition instruction and judges whether corresponding image input equipment is in an open state or not, if the image input equipment is in the open state, the image input equipment is indicated to acquire the images, a first response message is generated according to the acquired images, and the first response message is returned to the USIM; the invention enhances and expands the existing USAT mechanism, controls the image input equipment to acquire the image according to the service requirement, can meet the necessary requirement of a specific service scene, solves the problem that the USIM and the terminal interact in the aspects of image acquisition and video input, enhances the service capability of the USAT mechanism, and provides a basic condition for the USIM to fully utilize the image and video information to realize more service functions.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for acquiring an image by a USIM through a terminal.
Background
A Universal Subscriber Identity Module (USIM) is a continuation and progress of a SIM (Subscriber Identity Module) used in UMTS (Universal Mobile Telecommunications System), and is used to store Subscriber Identity information and personal data, ensure security of access to a Mobile network service, and perform Subscriber Identification and Subscriber authorization when a Subscriber accesses the Mobile network service. In contrast to SIM cards, USIM cards are no longer built on a single telecommunications application platform, but will become one of a variety of applications residing on a Universal Integrated Circuit Card (UICC). The UICC is a universal intelligent card platform, provides uniform bottom layer support for upper layer application, and can reside other intelligent card applications such as bank, ticket and the like besides the USIM, thereby really realizing the separation of the bearing platform and the application.
With the development of intelligent terminal applications, the demand for acquiring external image information is more and more common, such as taking pictures, scanning two-dimensional codes, video connection and the like, and the realization of the functions mainly depends on the functions of terminal image input equipment (such as a camera and the like). The USIM service, as an entity for bearing applications on the terminal side, is also continuously developing and creating more service types, wherein inevitably some applications also need to acquire external image information.
USAT (USIM Application Toolkit ) is one of the basic capabilities of the UICC of which USIM is a representative, and is a product of the development and evolution of the relationship between the terminal and the smart card. In the initial positioning, the UICC is completely passive, the terminal sends a command to the UICC, the UICC returns a response to the terminal after executing the command, the terminal and the UICC interact in a command/response pair manner, and all are manners in which the terminal initiates a command UICC response, this mechanism does not allow the UICC to actively send a command to the terminal, the terminal is always dominant, and the UICC can only be in a controlled state of accepting a command from the terminal, executing the command, and sending back the response, thus limiting the development and use of card-based applications.
Among the prior art, the USIM can require the terminal to complete various behaviors and functions, and lacks a mode of acquiring image information from the image input device of the terminal, so that when the USIM needs to acquire an external image, the USIM cannot transmit currently acquired image information to the USIM through the terminal device, and the support for the requirements is directly influenced.
Disclosure of Invention
The invention provides a method and a device for a USIM to acquire images through a terminal, aiming at the defects in the prior art, and aims to solve the problem that the prior USIM cannot acquire external images through terminal equipment.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a method for a USIM to acquire images through a terminal, which comprises the following steps:
receiving an image acquisition instruction sent by a universal user identification module;
acquiring equipment information of the image input equipment in the image acquisition instruction;
judging whether the image input equipment corresponding to the equipment information is in an open state or not, and if so, indicating the image input equipment to acquire an image;
and generating a first response message according to the image acquired by the image input equipment, and returning the first response message to the universal user identification module.
Further, the method further comprises:
and if the image input equipment is judged not to be in the opening state, generating a second response message, and returning the second response message to the universal user identification module so that the universal user identification module sends an image input equipment opening instruction to the equipment.
Further, the method further comprises:
and when an image input device opening instruction sent by the universal user identification module is received, acquiring the device information of the image input device in the image acquisition instruction, and judging whether the image input device corresponding to the device information is in an opening state.
Further, the image acquisition instruction further comprises a data length; after instructing the image input device to acquire an image and before generating a first response message from the image acquired by the image input device, the method further comprises:
acquiring the data length in the image acquisition instruction;
and judging whether the size of the image is smaller than the data length, if so, generating a first response message according to the image acquired by the image input equipment.
Further, the image acquisition instruction further comprises a command qualifier;
the method further comprises the following steps: if the size of the image is larger than or equal to the data length, acquiring a command qualifier in the image acquisition instruction, and processing the image according to the instruction of the command qualifier;
the generating of the first response message according to the image acquired by the image input device specifically includes: and generating a first response message according to the processed image.
The present invention also provides a terminal device, including: the device comprises a receiving module, an obtaining module, a judging module, a processing module and a sending module;
the receiving module is used for receiving the image acquisition instruction sent by the universal user identification module;
the acquisition module is used for acquiring the equipment information of the image input equipment in the image acquisition instruction;
the judging module is used for judging whether the image input equipment corresponding to the equipment information is in an open state or not, and when the image input equipment is in the open state, indicating the image input equipment to acquire an image;
the processing module is used for generating a first response message according to the image acquired by the image input equipment;
the sending module is configured to return the first response message to the universal subscriber identity module.
Further, the processing module is further configured to generate a second response message when the determining module determines that the image input device is not in the on state;
and the sending module is used for returning the second response message to the universal user identification module so that the universal user identification module sends an image input device starting instruction to the equipment.
Further, the receiving module is further configured to receive an image input device opening instruction sent by the universal user identification module;
the obtaining module is further configured to obtain device information of the image input device in the image obtaining instruction.
Further, the image acquisition instruction further comprises a data length;
the acquisition module is further used for acquiring the data length in the image acquisition instruction;
the judging module is further used for judging whether the size of the image is smaller than the data length;
the processing module is further configured to generate a first response message according to the image acquired by the image input device when the judging module judges that the size of the image is smaller than the data length.
Further, the image acquisition instruction further comprises a command qualifier;
the obtaining module is further configured to obtain a command qualifier in the image obtaining instruction when the judging module judges that the size of the image is greater than or equal to the data length;
the processing module is further configured to process the image according to the indication of the command qualifier; and generating a first response message according to the processed image.
The USIM generates an image acquisition instruction, the image acquisition instruction is sent to the terminal equipment, the terminal equipment acquires equipment information carried in the image acquisition instruction, whether corresponding image input equipment is in an open state or not is judged, if the image input equipment is in the open state, the image input equipment is indicated to acquire an image, a first response message is generated according to the acquired image, and the first response message is returned to the USIM; the invention enhances and expands the existing USAT mechanism, controls the image input equipment to acquire the image according to the service requirement, can meet the necessary requirement of a specific service scene, solves the problem that the USIM and the terminal interact in the aspects of image acquisition and video input, enhances the service capability of the USAT mechanism, and provides a basic condition for the USIM to fully utilize the image and video information to realize more service functions.
Drawings
Fig. 1 is a flowchart of a method for a USIM to acquire an image through a terminal according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating an embodiment of an image input device when the image input device is not turned on;
fig. 3 is a second flowchart of a method for a USIM to acquire an image through a terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
One embodiment of the present invention provides a method for a USIM to acquire an image through a terminal, as shown in fig. 1, the method includes the following steps:
and step 11, receiving an image acquisition instruction sent by the USIM.
The image acquisition instruction is generated by the USIM according to the requirements of the USIM application and sent to the terminal equipment, that is, a certain USIM application needs to use an image input device (such as a camera) on the terminal equipment to acquire an image or a video, and correspondingly, the USIM generates the image acquisition instruction according to the device information of the image input device.
The image acquisition command is an active command. The USAT protocol layer is introduced into the protocol stack of the Cu interface (interface between the terminal and the UICC), and provides a service mechanism based on the service provided by the transport layer, allowing UICC applications to interact and operate with the terminal that supports this mechanism, so that the UICC can actively request the terminal to perform certain operations, which are called proactive commands.
Preferably, the data structure of the image acquisition instruction is shown in table 1:
TABLE 1
Referring to table 1, the data object of the image acquisition instruction includes at least a "target device" field, where the "target device" indicates an invocation object to be invoked by the USIM this time (i.e., an image input device to be invoked, such as a camera).
The composition of the "target device" data object is shown in table 2:
TABLE 2
| Number of bytes | Description of the invention | Length of |
| 1 | Target device tagging | 1 |
| 2 | Length (1) | 1 |
| 3 | Target device identification | 1 |
Referring to table 2, the "target device" data object includes: the device comprises a target device mark, a length and a target device identification, wherein the target device mark is used for indicating that the device is an image input device to be started. The target equipment identification is indicated by different codes, and at the present stage, the camera equipment of the terminal is mainly supported, but the expansibility of subsequent equipment or other equipment is also supported. The target device identification is defined as follows:
- '01' ═ rear camera;
- '02' ═ front camera;
the rest is reserved.
And step 12, acquiring the equipment information of the image input equipment in the image acquisition instruction.
Specifically, the terminal device analyzes the image acquisition instruction to acquire device information of the image input device, where the device information is a target device mark, a target device length, and a target device identifier.
And step 13, judging whether the image input equipment corresponding to the equipment information is in an opening state, if so, executing step 14.
Specifically, the terminal device determines whether the image input device is in an on state by checking the current operation state of the image input device, and if the image input device is in the on state, the terminal device instructs the image input device to acquire an image (i.e., step 14 is executed).
Step 14, instructing the image input device to acquire an image.
And step 15, generating a first response message according to the image acquired by the image input equipment.
Preferably, the data structure of the first response message is shown in table 3:
TABLE 3
Referring to table 3, the data object of the first response message at least includes a "return data" field, and the "return data" is an image acquired by the image input device.
And step 16, returning a first response message to the USIM.
Through the steps 11-16, the USIM generates an image acquisition instruction, and sends the image acquisition instruction to the terminal equipment, the terminal equipment acquires the equipment information carried in the image acquisition instruction, judges whether the corresponding image input equipment is in an open state, if the image input equipment is in the open state, the image input equipment is indicated to acquire the image, a first response message is generated according to the acquired image, and the first response message is returned to the USIM; the invention enhances and expands the existing USAT mechanism, controls the image input equipment to acquire the image according to the service requirement, can meet the necessary requirement of a specific service scene, solves the problem that the USIM and the terminal interact in the aspects of image acquisition and video input, enhances the service capability of the USAT mechanism, and provides a basic condition for the USIM to fully utilize the image and video information to realize more service functions.
Further, as shown in fig. 2, in step 13, if it is determined that the image input device is not in the open state, the method for the USIM to capture an image by the terminal further includes the following steps:
step 17, generating a second response message.
Specifically, when the terminal device determines that the image input device is not in the on state, it indicates that the image capturing instruction is not successfully executed, and therefore, as shown in table 3, the data object of the second response message may further include an "execution result" field, where the "execution result" indicates a reason why the image capturing instruction is not executed.
And step 18, returning a second response message to the USIM so that the USIM sends an image input device opening instruction to the equipment.
Specifically, after receiving the second response message, the USIM parses an "execution result" from the second response message, and determines, according to the execution result, that the reason why the image acquisition instruction cannot be executed is that the image input device is not turned on, so that an image input device turn-on instruction is sent to the terminal device to control the turn-on of the corresponding image input device on the terminal device. Further, when the terminal device receives an image input device opening instruction sent by the USIM, the device information of the image input device in the image acquisition instruction is acquired, and it is determined whether the image input device corresponding to the device information is in an open state (i.e., step 13 is executed).
Since some USIM applications have requirements on image size, as shown in table 1, the data object of the image acquisition instruction may further include a "data length" field indicating the maximum length of data that the USIM allows the terminal device to return, and a command qualifier field indicating the manner of processing when the image size exceeds the maximum length allowed by the USIM.
The values of the command qualifiers are defined as follows:
bit1 ═ 0: discarding images larger than the maximum allowable length;
bit1 ═ 1: the image is processed by the terminal when the image is larger than the maximum allowable length;
the rest is reserved.
Accordingly, after instructing the image input device to acquire an image (i.e., step 14) and before generating a first response message from the image acquired by the image input device (i.e., step 15), as shown in fig. 3, the method for acquiring an image by a terminal of the USIM may further include the steps of:
step 21, acquiring the data length and the command qualifier in the image acquisition instruction.
Specifically, the terminal device parses the image acquisition instruction, and acquires the data length and the command qualifier therein.
Step 22, judging whether the size of the image is smaller than the data length, if so, executing step 15; otherwise, step 23 is executed and the process returns to step 15.
Specifically, if the terminal device determines that the size of the image is smaller than the data length, which indicates that the acquired image meets the requirement, a first response message is generated according to the image acquired by the image input device (i.e., step 15 is executed).
If the terminal device determines that the size of the image is greater than or equal to the data length, indicating that the acquired image does not meet the requirement, the image needs to be processed to make the size of the image smaller than the data length (i.e., step 23 is executed). It should be noted that, after step 23 is executed, in step 15, the generating a first response message according to the image acquired by the image input device specifically includes: and generating a first response message according to the processed image.
The image is processed according to the instruction of the command qualifier, step 23.
Specifically, in this step, if bit1 is equal to 1, the terminal device may perform processing on the image, such as operations of compressing, resizing, and format conversion on the image.
The invention provides a method for acquiring external image information and downloading the external image information to a USIM (Universal subscriber identity Module) according to USIM service requirements by expanding USAT commands and capabilities based on a USAT mechanism or framework aiming at the problem that the current USIM cannot acquire external images through terminal equipment so that the relevant requirements of terminal application cannot be realized. The method expands the service function range of machine-card interaction, is beneficial to more fully utilizing the terminal capability of the USIM service, effectively solves the feasibility problem of the corresponding function, and provides the premise and the possibility for realizing more service capabilities. The scheme provides the function requirement and the structural parameter definition of an expanded USAT active command, defines a necessary new data object, and plans the interactive flow and steps between the machine card based on the new command.
Based on the same technical concept, an embodiment of the present invention further provides a terminal device, as shown in fig. 4, where the terminal device may include: a receiving module 41, an obtaining module 42, a judging module 43, a processing module 44 and a sending module 45.
The receiving module 41 is configured to receive an image acquisition instruction sent by the universal subscriber identity module.
The obtaining module 42 is configured to obtain the device information of the image input device in the image obtaining instruction.
The determining module 43 is configured to determine whether the image input device corresponding to the device information is in an open state, and instruct the image input device to acquire an image when the image input device is in the open state.
The processing module 44 is configured to generate a first response message according to the image acquired by the image input device.
The sending module 45 is configured to return the first response message to the universal subscriber identity module.
Further, the processing module 44 is further configured to generate a second response message when the determining module 43 determines that the image input device is not in the on state.
The sending module 45 is configured to return the second response message to the universal subscriber identity module, so that the universal subscriber identity module sends an image input device start instruction to the device.
Further, the receiving module 41 is further configured to receive an image input device start instruction sent by the universal subscriber identity module.
The obtaining module 42 is further configured to obtain device information of the image input device in the image obtaining instruction.
Further, the image acquisition instruction further includes a data length.
The obtaining module 42 is further configured to obtain the data length in the image obtaining instruction.
The determining module 43 is further configured to determine whether the size of the image is smaller than the data length.
The processing module 44 is further configured to generate a first response message according to the image acquired by the image input device when the determining module 43 determines that the size of the image is smaller than the data length.
Further, the image acquisition instruction further comprises a command qualifier.
The obtaining module 42 is further configured to obtain the command qualifier in the image obtaining instruction when the determining module 43 determines that the size of the image is greater than or equal to the data length.
The processing module 44 is further configured to process the image according to the indication of the command qualifier; and generating a first response message according to the processed image.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A method for a USIM to acquire images through a terminal is characterized by comprising the following steps:
receiving an image acquisition instruction sent by a universal user identification module;
acquiring equipment information of the image input equipment in the image acquisition instruction;
judging whether the image input equipment corresponding to the equipment information is in an open state or not, and if so, indicating the image input equipment to acquire an image;
generating a first response message according to the image acquired by the image input device, and returning the first response message to the universal user identification module;
wherein the method further comprises:
and if the image input equipment is judged not to be in the opening state, generating a second response message, and returning the second response message to the universal user identification module so that the universal user identification module sends an image input equipment opening instruction to the equipment.
2. The method of claim 1, wherein the method further comprises:
and when an image input device opening instruction sent by the universal user identification module is received, acquiring the device information of the image input device in the image acquisition instruction, and judging whether the image input device corresponding to the device information is in an opening state.
3. The method of any of claims 1-2, wherein the image acquisition instruction further comprises a data length; after instructing the image input device to acquire an image and before generating a first response message from the image acquired by the image input device, the method further comprises:
acquiring the data length in the image acquisition instruction;
and judging whether the size of the image is smaller than the data length, if so, generating a first response message according to the image acquired by the image input equipment.
4. The method of claim 3, wherein the image acquisition instruction further comprises a command qualifier;
the method further comprises the following steps: if the size of the image is larger than or equal to the data length, acquiring a command qualifier in the image acquisition instruction, and processing the image according to the instruction of the command qualifier;
the generating of the first response message according to the image acquired by the image input device specifically includes: and generating a first response message according to the processed image.
5. A terminal device, comprising: the device comprises a receiving module, an obtaining module, a judging module, a processing module and a sending module;
the receiving module is used for receiving the image acquisition instruction sent by the universal user identification module;
the acquisition module is used for acquiring the equipment information of the image input equipment in the image acquisition instruction;
the judging module is used for judging whether the image input equipment corresponding to the equipment information is in an open state or not, and when the image input equipment is in the open state, indicating the image input equipment to acquire an image;
the processing module is used for generating a first response message according to the image acquired by the image input equipment;
the sending module is used for returning the first response message to the universal subscriber identity module; the processing module is further configured to generate a second response message when the judging module judges that the image input device is not in the on state;
and the sending module is used for returning the second response message to the universal user identification module so that the universal user identification module sends an image input device starting instruction to the equipment.
6. The terminal device according to claim 5, wherein the receiving module is further configured to receive an image input device turn-on instruction sent by the universal subscriber identity module;
the obtaining module is further configured to obtain device information of the image input device in the image obtaining instruction.
7. The terminal device according to any one of claims 5 to 6, wherein the image acquisition instruction further includes a data length;
the acquisition module is further used for acquiring the data length in the image acquisition instruction;
the judging module is further used for judging whether the size of the image is smaller than the data length;
the processing module is further configured to generate a first response message according to the image acquired by the image input device when the judging module judges that the size of the image is smaller than the data length.
8. The terminal device of claim 7, wherein the image acquisition instruction further includes a command qualifier;
the obtaining module is further configured to obtain a command qualifier in the image obtaining instruction when the judging module judges that the size of the image is greater than or equal to the data length;
the processing module is further configured to process the image according to the indication of the command qualifier; and generating a first response message according to the processed image.
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| CN105120099A (en) * | 2015-08-31 | 2015-12-02 | 小米科技有限责任公司 | Shooting control method and device |
| CN108848497A (en) * | 2018-06-01 | 2018-11-20 | 中国联合网络通信集团有限公司 | Acquisition methods, device, terminal and the computer readable storage medium of list of application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010016679A2 (en) * | 2008-08-08 | 2010-02-11 | 에스케이 텔레콤주식회사 | Interface system between a terminal and a smart card, method for same, and smart card applied to same |
| CN105120099A (en) * | 2015-08-31 | 2015-12-02 | 小米科技有限责任公司 | Shooting control method and device |
| CN108848497A (en) * | 2018-06-01 | 2018-11-20 | 中国联合网络通信集团有限公司 | Acquisition methods, device, terminal and the computer readable storage medium of list of application |
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