CN110851811A - Method and device for preventing misoperation of equipment - Google Patents
Method and device for preventing misoperation of equipment Download PDFInfo
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- CN110851811A CN110851811A CN201911121435.0A CN201911121435A CN110851811A CN 110851811 A CN110851811 A CN 110851811A CN 201911121435 A CN201911121435 A CN 201911121435A CN 110851811 A CN110851811 A CN 110851811A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
- G06V40/1376—Matching features related to ridge properties or fingerprint texture
Abstract
The invention relates to the technical field of equipment safety, in particular to a method and a device for preventing equipment from being operated by mistake. The method comprises the following steps: determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information; determining a fingerprint judgment value according to the contour feature and the texture feature; and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that an operation instruction is input by children, and thus not executing the operation instruction. The method and the device for preventing the equipment from being operated by mistake provided by the embodiment of the invention can accurately judge whether the operation instruction comes from children, thereby preventing the dangers brought by the misoperation of the children.
Description
Technical Field
The invention relates to the technical field of equipment safety, in particular to a method and a device for preventing equipment from being operated by mistake.
Background
With the development of device control technology, the operation and control of various devices become simpler and simpler. For example, a user can send an operation instruction to various devices through a touch pad, a remote controller, and the like, and the operation mode brings great convenience to the user.
However, in some cases, particularly in a home scenario, this manner of manipulation may present risks and safety concerns. For example, a child may operate some electrical devices (an electric water heater, an electric fan, an electric heater, etc.) by mistake, resulting in a danger of injury to the child, a household fire, etc.
In order to eliminate the above-mentioned safety hazards (especially those caused by the misoperation of children), the prior art provides some methods for preventing the misoperation of the equipment, such as child locks and the like.
However, most of the existing child locks adopt a password authentication mode. However, the password authentication method requires inputting a password before operating the device, which is very tedious and time-consuming, and many devices are not suitable for the method (the touch panel has a limited volume).
Disclosure of Invention
In view of the defects in the prior art, embodiments of the present invention provide a method and an apparatus for preventing a device from being operated by mistake, which can accurately determine whether an operation instruction comes from a child, thereby preventing the child from bringing a danger due to the misoperation.
In one aspect, a method for preventing a device from being operated by mistake includes:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour feature and the texture feature;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that an operation instruction is input by children, and thus not executing the operation instruction.
According to the method for preventing the misoperation of the equipment, provided by the embodiment of the invention, the operation instruction can be confirmed whether to come from children only by judging the fingerprint, so that whether to execute the operation instruction is determined, and therefore, the method is very efficient. In addition, the outline and the textural features of the fingerprint are fully considered in the judgment, so that the method has higher accuracy.
On the other hand, the method for preventing the misoperation of the equipment is easy to apply and has better universality because only the fingerprint needs to be analyzed and judged.
In one embodiment, before the determining the contour feature and the texture feature of the fingerprint, the method further comprises:
and determining validity information of the fingerprint according to the fingerprint information, and determining whether to execute the operation instruction according to the validity information.
It can be understood that when a child operates the device, the child often has irregular operation behaviors, and therefore the fingerprint collected by the fingerprint collecting device is often incomplete and/or unclear. By acquiring the validity information of the fingerprint, whether the operation instruction is input by children can be effectively and preliminarily judged. In addition, when an adult operates the device, the device may be touched by mistake. Therefore, by judging the validity of the fingerprint, the danger of erroneous operation can be avoided.
In one embodiment, the determining validity information of the fingerprint according to the acquired fingerprint information, and determining whether to execute the operation instruction according to the validity information includes:
determining a completeness evaluation value of the fingerprint according to the completeness of the fingerprint, and determining a definition evaluation value of the fingerprint according to the definition of the fingerprint;
and determining not to execute the operation instruction according to a judgment result that the sum of the integrity evaluation value with the first weight and the definition evaluation value with the second weight is smaller than a preset validity judgment threshold value.
The sum of the integrity evaluation value and the definition evaluation value is calculated by weighting, and the sum of the integrity evaluation value and the definition evaluation value and a preset validity judgment threshold value are judged, so that whether the operation is a child operation or a misoperation can be accurately judged.
In one embodiment, the determining the contour feature and the texture feature of the fingerprint according to the acquired fingerprint information includes:
determining an effective coefficient and a judgment value of the outline of the fingerprint according to the outline information of the fingerprint;
and determining a texture effective coefficient and a texture judgment value of the fingerprint according to the texture information of the fingerprint.
In one embodiment, the determining a fingerprint judgment value according to the contour feature and the texture feature includes:
taking the sum of the product of the contour effective coefficient and the contour judgment value and the product of the texture effective coefficient and the texture judgment value as the fingerprint judgment value;
wherein the sum of the contour significant coefficient and the texture significant coefficient is 1.
When the fingerprint judgment value is determined, the outline and the texture characteristics of the fingerprint are fully considered, so that the fingerprint judgment value has higher accuracy, and the judgment result of whether the operation instruction is input by children is very accurate.
In one embodiment, the determining the contour significant coefficient and the contour judgment value of the fingerprint according to the contour information of the fingerprint includes:
determining the effective coefficient of the fingerprint outline according to the integrity of the fingerprint outline;
and determining the matched fingerprint type according to the contour information of the fingerprint, and determining the contour judgment value according to the matching result.
The size of the finger print of the adult index, middle or ring finger may be equal to or similar to the size of the finger print of the child's thumb. Therefore, the fingerprint is judged to be the thumb fingerprint, the index finger fingerprint, the middle finger fingerprint, the ring finger fingerprint or the little finger fingerprint, so that the fingerprint identification accuracy can be obviously improved, and whether the operation instruction is input by children or not can be judged more accurately.
In one embodiment, the determining the texture significant coefficient and the texture decision value of the fingerprint according to the texture information of the fingerprint includes:
determining the effective coefficient of the fingerprint texture according to the definition of the fingerprint texture;
and judging whether the fingerprint is an adult fingerprint or a child fingerprint according to the texture thickness characteristic and the texture depth characteristic of the fingerprint, and determining the texture judgment value according to the judgment result.
The texture features of adult fingerprints and the texture features of child fingerprints have certain differences (such as the distance between ridges, the thickness of ridges and valleys and the like), so that whether an operation instruction is input by a child can be more accurately judged by judging the texture thickness and the depth features of the fingerprints.
On the other hand, an embodiment of the present invention further provides an apparatus for preventing a device from being operated by mistake, including:
the characteristic determining module is used for determining the outline characteristic and the texture characteristic of the fingerprint according to the acquired fingerprint information;
the judgment value determining module is used for determining a fingerprint judgment value according to the contour feature and the texture feature;
and the control module is used for determining that an operation instruction is input by children according to a judgment result that the fingerprint judgment value is smaller than a preset judgment threshold value, so that the operation instruction is not executed.
In one embodiment, the apparatus further comprises a validity determination module;
the validity judging module is used for determining validity information of the fingerprint according to the fingerprint information and determining whether to execute the operation instruction according to the validity information.
In one embodiment, the feature determination module is specifically configured to:
determining an effective coefficient and a judgment value of the outline of the fingerprint according to the outline information of the fingerprint;
and determining a texture effective coefficient and a texture judgment value of the fingerprint according to the texture information of the fingerprint.
In one embodiment, the judgment value determining module is specifically configured to: taking the sum of the product of the contour effective coefficient and the contour judgment value and the product of the texture effective coefficient and the texture judgment value as the fingerprint judgment value;
wherein the sum of the contour significant coefficient and the texture significant coefficient is 1.
On the other hand, the embodiment of the invention also provides a controller,
the controller is configured to perform the steps of any of the above-described methods of preventing malfunction of an apparatus.
On the other hand, the embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement any of the steps of the method for preventing the device from being operated by mistake.
In another aspect, an embodiment of the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method for preventing a device from being operated by mistake as any one of the above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for preventing a device from being operated by mistake according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for preventing a device from being operated by mistake according to an embodiment of the present invention;
fig. 3 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Fig. 1 is a schematic flow chart of a method for preventing a device from being operated by mistake according to an embodiment of the present invention, and referring to fig. 1, the embodiment of the present invention provides a method for preventing a device from being operated by mistake, including:
s1, determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
s2, determining a fingerprint judgment value according to the contour feature and the texture feature;
and S3, according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that the operation instruction is input by children, and thus not executing the operation instruction.
According to the method for preventing the misoperation of the equipment, provided by the embodiment of the invention, the operation instruction can be confirmed whether to come from children only by judging the fingerprint, so that whether to execute the operation instruction is determined, and therefore, the method is very efficient. In addition, the outline and the textural features of the fingerprint are fully considered in the judgment, so that the method has higher accuracy.
On the other hand, the method for preventing the misoperation of the equipment is easy to apply and has better universality because only the fingerprint needs to be analyzed and judged.
It should be noted that the execution main body of the method for preventing the device from being operated by mistake provided by the embodiment of the present invention may be a computer, such as a single chip, an embedded computer, a microcomputer, an MCU, and the like. The following describes a method for preventing a device from being operated by mistake, which is provided by an embodiment of the present invention, by taking a controller of the device as an execution subject.
In an embodiment, before step S1, the method for preventing a device from being operated by mistake according to an embodiment of the present invention further includes:
and S0, determining the validity information of the fingerprint according to the fingerprint information, and determining whether to execute the operation instruction according to the validity information.
Specifically, the controller may obtain a validity evaluation value of the fingerprint according to the validity information of the fingerprint, and determine that the operation instruction is input by the child according to a determination result that the validity evaluation value is smaller than a preset validity threshold value, so as not to execute the operation instruction;
wherein the validity information includes the integrity and the clarity of the fingerprint.
It should be noted that the integrity of the fingerprint can be determined according to whether the collected fingerprint has a defect, and the clarity of the fingerprint can be determined according to whether the collected fingerprints are continuous or overlapped.
Specifically, after acquiring the fingerprint information acquired by the fingerprint acquisition device, the controller evaluates the integrity and the definition of the fingerprint to obtain an integrity evaluation value E1 and a definition evaluation value E2, and acquires a validity evaluation value E according to the integrity evaluation value E1 and the definition evaluation value E2.
It should be noted that, in many embodiments of the present invention, the fingerprint acquisition device is disposed on the touch pad or the keys of the remote controller, so that the user can acquire the fingerprint of the user when inputting the operation instruction.
In one example, after the controller acquires the fingerprint information, the integrity of the fingerprint is evaluated to be 80%, that is, E1 is 0.8; the clarity of the fingerprint was evaluated as 90%, i.e., E2 ═ 0.9. At this time, the validity evaluation value E — E1+ E2 is 1.7.
After confirming the evaluation value E, the controller determines that the validity evaluation value E is 1.0 or more from the preset validity threshold value E0, and determines that E > E0, so the controller performs the following steps S1 to S3.
In yet another example, the controller evaluates the integrity of the fingerprint as E1-0.4 and the clarity of the fingerprint as E2-0.3, i.e., E1+ E2-0.7, and E < E0, so the controller confirms that the manipulation command is input by the child and does not execute the manipulation command.
It can be understood that the higher the integrity of the collected fingerprint is, the higher the evaluation value of the integrity of the fingerprint by the controller is, and similarly, the higher the definition of the collected fingerprint is, the higher the evaluation value of the definition of the fingerprint by the controller is.
In the validation of the validity evaluation value E, a certain weight value may be further designed for the integrity evaluation value E1 and the clarity evaluation value E2, for example, E1 × E1+ E2 × E2, where E1 is a first weight value and E2 is a second weight value.
The specific values of e1 and e2 may be adjusted according to actual requirements, which is not limited in the embodiments of the present invention.
It can be understood that when a child operates the device, the child often has irregular operation behaviors, and therefore the fingerprint collected by the fingerprint collecting device is often incomplete and/or unclear. In step S0, it is effectively determined whether the operation command is input by a child. In addition, when an adult operates the device, the device may be touched by mistake. Therefore, by judging the validity of the fingerprint, the danger of erroneous operation can be avoided.
In addition, through step S0, irregular operation behaviors of the adult user may also be corrected.
Further, in one embodiment, step S1 includes:
s11, determining the effective coefficient and judgment value of the fingerprint outline according to the fingerprint outline information;
and S12, determining the effective coefficient of the texture and the texture judgment value of the fingerprint according to the texture information of the fingerprint.
In one embodiment, the controller first determines the integrity of the fingerprint profile and determines a profile significant coefficient according to the integrity of the fingerprint profile;
for example, when the integrity of the contour is 80%, the contour effective coefficient a may be determined to be 0.4; and when the integrity of the contour is 60%, the contour effective coefficient a can be determined to be 0.3.
After the effective coefficient of the outline is determined, the controller compares the outline information of the fingerprint with the data in the preset fingerprint comparison library so as to determine an outline judgment value.
Specifically, the controller may determine which of a thumb fingerprint, an index finger fingerprint, a middle finger fingerprint, a ring finger fingerprint, or a little finger fingerprint the fingerprint is based on the fingerprint profile, and determine the profile determination value based on the profile determination result.
It should be noted that the preset data in the fingerprint comparison library may be preset before delivery, or may be fingerprint data in the cloud database, or may be locally stored fingerprint data.
The size of the finger print of the adult index, middle or ring finger may be equal to or similar to the size of the finger print of the child's thumb. Therefore, the fingerprint is judged to be the thumb fingerprint, the index finger fingerprint, the middle finger fingerprint, the ring finger fingerprint or the little finger fingerprint, so that the fingerprint identification accuracy can be obviously improved, and whether the operation instruction is input by children or not can be judged more accurately.
Specifically, when the profile information of the fingerprint is compared with the data in the preset fingerprint comparison library, the controller can judge the matching degree of the fingerprint with a thumb fingerprint, an index finger fingerprint, a middle finger fingerprint, a ring finger fingerprint or a little finger fingerprint according to the profile information of the fingerprint, and take the value with the highest matching degree as the profile judgment value A.
For example, in one example, the degree of matching between the fingerprint and the thumb fingerprint is 10%, the degree of matching between the fingerprint and the index finger fingerprint is 95%, the degree of matching between the fingerprint and the middle finger fingerprint is 40%, the degree of matching between the fingerprint and the ring finger fingerprint is 30%, and the degree of matching between the fingerprint and the little finger fingerprint is 18%, so that the finally determined contour determination value a is 0.95.
In yet another example, the fingerprint matches the fingerprint of the thumb at 10%, the fingerprint of the index finger at 35%, the fingerprint of the middle finger at 95%, the fingerprint of the ring finger at 30%, and the fingerprint of the little finger at 40%, so that the finally determined contour determination value a is 0.95.
After determining the effective coefficient of the outline of the fingerprint and the outline judgment value, the controller determines the effective coefficient of the texture according to the definition of the fingerprint texture; and judging whether the fingerprint is an adult fingerprint or a child fingerprint according to the texture thickness characteristic and the texture depth characteristic of the fingerprint, and determining a texture judgment value according to a judgment result.
The texture features of adult fingerprints and the texture features of child fingerprints have certain differences (such as the distance between ridges, the thickness of ridges and valleys and the like), so that whether an operation instruction is input by a child can be more accurately judged by judging the texture thickness and the depth features of the fingerprints.
In one embodiment, when the fingerprint has a sharpness of 70%, the texture significant coefficient b may be determined to be 0.6; and when the fingerprint clarity is 80%, the texture significant coefficient b may be determined to be 0.7.
After the effective coefficient of the texture is determined, the controller compares the texture thickness characteristic and the texture depth characteristic of the fingerprint with data in a preset fingerprint comparison library so as to determine a texture judgment value.
Specifically, when comparing the texture thickness feature of the fingerprint with the data in the texture depth feature comparison library, the matching values of the texture thickness feature and the texture depth feature of the fingerprint with the adult fingerprint and the child fingerprint are determined, and the matching value with the adult fingerprint is used as the texture determination value B.
For example, in one example, the degree of matching of the fingerprint with the adult fingerprint is 20%, the degree of matching with the child fingerprint is 80%, and the finally determined texture decision value a is 0.2; in yet another example, the degree of matching of the fingerprint with the adult fingerprint is 80%, the degree of matching with the child fingerprint is 20%, and the finally determined texture decision value a is 0.8.
In one embodiment, step S2 includes:
s21, taking the product of the contour effective coefficient and the contour judgment value and the sum of the product of the texture effective coefficient and the texture judgment value as the fingerprint judgment value;
and the sum of the contour effective coefficient and the texture effective coefficient is 1.
Specifically, if the fingerprint judgment value is C, then
C＝a×A+b×B
Wherein a is a contour effective coefficient; a is a contour judgment value; b is a texture significant coefficient; b is a texture judgment value; a + b is 1.
It should be noted that, the value of a is positively correlated with the integrity of the fingerprint (i.e., the higher the integrity of the fingerprint, the larger the value of a), and the value of b is positively correlated with the definition of the fingerprint (i.e., the higher the definition of the fingerprint, the larger the value of b). In different embodiments, the specific value ranges of a and b may be adjusted according to actual needs, which is not limited in the embodiments of the present invention.
For step S3, in one embodiment, the preset determination threshold C0 is 0.7, the contour significant coefficient a is 0.4, the contour determination value a is 0.95, the texture significant coefficient B is 0.6, the texture determination value a is 0.2, and the fingerprint determination value C ═ a × a + B × B ═ 0.5.
When the controller determines that the fingerprint judgment value C is 0.5, the controller determines that the fingerprint judgment value C is smaller than the predetermined judgment threshold value C0, and C is smaller than C0, that is, the fingerprint judgment value is smaller than the predetermined judgment threshold value, so that the controller determines that the operation command is input by the child, and does not execute the operation command.
In another embodiment, the predetermined threshold C0 is 0.7, the contour significant coefficient a is 0.3, the contour determination value a is 0.95, the texture significant coefficient b is 0.7, the texture determination value a is 0.8, and the fingerprint determination value C is 0.845, so that C > C0, i.e., the fingerprint determination value is greater than the predetermined threshold, the controller determines that the operation command is input by an adult and executes the operation command.
Therefore, the method for preventing the device from being operated by mistake provided by the embodiment of the invention fully considers the outline and the texture characteristics of the fingerprint when judging whether the operation instruction is input by children, so that the method has higher accuracy.
In addition, because the judgment object of the method for preventing the misoperation of the equipment is the fingerprint, and the acquisition difficulty of the fingerprint is low, the method has good universality and wide application prospect, such as:
1. the fingerprint acquisition module and the MCU can be added into the non-intelligent equipment (such as traditional household appliances) and then the control module (such as a relay/an electromagnetic valve) is matched, so that the non-intelligent equipment can implement the method for preventing the equipment from being operated by mistake, and the non-intelligent equipment is protected;
2. when the method for preventing the misoperation of the equipment provided by the embodiment of the invention is applied to intelligent equipment (such as intelligent household appliances and the like) with a control algorithm unit, algorithms related to fingerprint identification and fingerprint comparison database data can be integrated into an electric control board, and at the moment, only a fingerprint acquisition device needs to be arranged and then a control algorithm is matched;
3. to smart machine, can also upload the fingerprint information who gathers to the high in the clouds server, judge by the high in the clouds server whether operating instruction is by children's input to further improve the accuracy of judging.
Fig. 2 is a schematic structural diagram of an apparatus for preventing a device from being operated by mistake according to an embodiment of the present invention, and referring to fig. 2, the apparatus includes a characteristic determining module 201, a judgment value determining module 202, and a control module 203.
The feature determination module 201 is configured to determine a contour feature and a texture feature of a fingerprint according to the acquired fingerprint information;
the judgment value determining module 202 is configured to determine a fingerprint judgment value according to the contour feature and the texture feature;
the control module 203 is configured to determine that an operation instruction is input by a child according to a determination result that the fingerprint determination value is smaller than a preset determination threshold, so as not to execute the operation instruction.
The device for preventing the misoperation of the equipment provided by the embodiment of the invention can confirm whether the operation instruction comes from children only by judging the fingerprint, so as to determine whether the operation instruction is executed, and therefore, the device is very efficient. In addition, the outline and the textural features of the fingerprint are fully considered in the judgment, so that the method has higher accuracy.
On the other hand, the device for preventing the misoperation of the equipment is easy to apply and has better universality because only the fingerprint needs to be analyzed and judged.
In an embodiment, the apparatus for preventing a device from being operated by mistake according to an embodiment of the present invention further includes a validity determination module (not shown in the figure).
The validity judging module is used for determining validity information of the fingerprint according to the fingerprint information and determining whether to execute the operation instruction according to the validity information.
Specifically, the validity judgment module may obtain a validity evaluation value of the fingerprint according to the validity information of the fingerprint, and determine not to execute the operation instruction according to a judgment result that the validity evaluation value is smaller than a preset validity threshold;
wherein the validity information includes the integrity and the clarity of the fingerprint.
It should be noted that the integrity of the fingerprint can be determined according to whether the collected fingerprint has a defect, and the clarity of the fingerprint can be determined according to whether the collected fingerprints are continuous or overlapped.
Specifically, after the fingerprint information collected by the fingerprint collecting device is obtained, the validity determining module evaluates the integrity and the definition of the fingerprint to obtain an integrity evaluation value E1 and a definition evaluation value E2, and obtains a validity evaluation value E according to the integrity evaluation value E1 and the definition evaluation value E2.
It should be noted that, in many embodiments of the present invention, the fingerprint acquisition device is disposed on the touch pad or the keys of the remote controller, so that the user can acquire the fingerprint of the user when inputting the operation instruction.
In one example, the validity determination module evaluates the integrity of the fingerprint to 80%, i.e., E1 ═ 0.8; the clarity of the fingerprint was evaluated as 90%, i.e., E2 ═ 0.9. At this time, the validity evaluation value E — E1+ E2 is 1.7.
After the evaluation value E is confirmed, the validity determination module determines that the validity evaluation value E is equal to 1.0 of the preset validity threshold value E0, and the determination result is that E > E0, so that the validity determination module may cause other modules to perform the following steps S1 to S3.
In another example, the validity determination module evaluates the integrity of the fingerprint as E1-0.4 and the clarity of the fingerprint as E2-0.3, i.e., E1+ E2-0.7, and E < E0, so that the validity determination module confirms that the manipulation instruction is input by the child and does not execute the manipulation instruction.
It can be understood that, if the integrity of the collected fingerprint is higher, the evaluation value of the validity determination module on the integrity of the fingerprint is also higher, and similarly, if the definition of the collected fingerprint is higher, the evaluation value of the validity determination module on the definition of the fingerprint is also higher.
In the validation of the validity evaluation value E, a certain weight value may be further designed for the integrity evaluation value E1 and the clarity evaluation value E2, for example, E1 × E1+ E2 × E2, where E1 is a first weight value and E2 is a second weight value.
The specific values of e1 and e2 may be adjusted according to actual requirements, which is not limited in the embodiments of the present invention.
It can be understood that when a child operates the device, the child often has irregular operation behaviors, and therefore the fingerprint collected by the fingerprint collecting device is often incomplete and/or unclear. Through the effectiveness judging module, whether the operation instruction is input by children can be effectively and preliminarily judged. In addition, when an adult operates the device, the device may be touched by mistake. Therefore, by judging the validity of the fingerprint, the danger of erroneous operation can be avoided.
In addition, through the validity judging module, the irregular operation behaviors of adult users can be corrected.
Further, in an embodiment, the characteristic determining module 21 is specifically configured to:
determining an effective coefficient and a judgment value of the outline of the fingerprint according to the outline information of the fingerprint;
and determining a texture effective coefficient and a texture judgment value of the fingerprint according to the texture information of the fingerprint.
In one embodiment, the feature determining module 21 first determines the integrity of the fingerprint profile and determines the effective coefficient of the fingerprint profile according to the integrity of the fingerprint profile;
for example, when the integrity of the contour is 80%, the contour effective coefficient a may be determined to be 0.4; and when the integrity of the contour is 60%, the contour effective coefficient a can be determined to be 0.3.
After determining the contour effective coefficient, the feature determination module 21 compares the contour information of the fingerprint with the data in the preset fingerprint comparison library, so as to determine a contour judgment value.
Specifically, the feature determination module 21 determines which of a thumb fingerprint, an index finger fingerprint, a middle finger fingerprint, a ring finger fingerprint, or a little finger fingerprint the fingerprint is based on the fingerprint profile, and determines the profile determination value based on the profile determination result.
It should be noted that the preset data in the fingerprint comparison library may be preset before delivery, or may be fingerprint data in the cloud database, or may be locally stored fingerprint data.
The size of the finger print of the adult index, middle or ring finger may be equal to or similar to the size of the finger print of the child's thumb. Therefore, the fingerprint is judged to be the thumb fingerprint, the index finger fingerprint, the middle finger fingerprint, the ring finger fingerprint or the little finger fingerprint, so that the fingerprint identification accuracy can be obviously improved, and whether the operation instruction is input by children or not can be judged more accurately.
Specifically, when the profile information of the fingerprint is compared with the data in the preset fingerprint comparison library, the characteristic determining module 21 may determine the matching degree between the fingerprint and the thumb fingerprint, the index finger fingerprint, the middle finger fingerprint, the ring finger fingerprint or the small finger fingerprint according to the profile information of the fingerprint, and use the value with the highest matching degree as the profile determination value a.
For example, in one example, the degree of matching between the fingerprint and the thumb fingerprint is 10%, the degree of matching between the fingerprint and the index finger fingerprint is 95%, the degree of matching between the fingerprint and the middle finger fingerprint is 40%, the degree of matching between the fingerprint and the ring finger fingerprint is 30%, and the degree of matching between the fingerprint and the little finger fingerprint is 18%, so that the finally determined contour determination value a is 0.95.
In yet another example, the fingerprint matches the fingerprint of the thumb at 10%, the fingerprint of the index finger at 35%, the fingerprint of the middle finger at 95%, the fingerprint of the ring finger at 30%, and the fingerprint of the little finger at 40%, so that the finally determined contour determination value a is 0.95.
After determining the effective coefficient of the outline of the fingerprint and the judgment value of the outline, the feature determining module 21 determines the effective coefficient of the texture according to the definition of the fingerprint texture; and judging whether the fingerprint is an adult fingerprint or a child fingerprint according to the texture thickness characteristic and the texture depth characteristic of the fingerprint, and determining a texture judgment value according to a judgment result.
The texture features of adult fingerprints and the texture features of child fingerprints have certain differences (such as the distance between ridges, the thickness of ridges and valleys and the like), so that whether an operation instruction is input by a child can be more accurately judged by judging the texture thickness and the depth features of the fingerprints.
In one embodiment, when the fingerprint has a sharpness of 70%, the texture significant coefficient b may be determined to be 0.6; and when the fingerprint clarity is 80%, the texture significant coefficient b may be determined to be 0.7.
After determining the effective coefficient of the texture, the feature determining module 21 compares the texture thickness feature and the texture depth feature of the fingerprint with the data in the preset fingerprint comparison library, so as to determine the texture judgment value.
Specifically, when comparing the texture thickness feature of the fingerprint with the data in the texture depth feature comparison library, the matching values of the texture thickness feature and the texture depth feature of the fingerprint with the adult fingerprint and the child fingerprint are determined, and the matching value with the adult fingerprint is used as the texture determination value B.
For example, in one example, the degree of matching of the fingerprint with the adult fingerprint is 20%, the degree of matching with the child fingerprint is 80%, and the finally determined texture decision value a is 0.2; in yet another example, the degree of matching of the fingerprint with the adult fingerprint is 80%, the degree of matching with the child fingerprint is 20%, and the finally determined texture decision value a is 0.8.
In one embodiment, the judgment value determining module 22 is specifically configured to:
taking the product of the contour effective coefficient and the contour judgment value and the sum of the product of the texture effective coefficient and the texture judgment value as fingerprint judgment values;
and the sum of the contour effective coefficient and the texture effective coefficient is 1.
Specifically, if the fingerprint judgment value is C, then
C＝a×A+b×B
Wherein a is a contour effective coefficient; a is a contour judgment value; b is a texture significant coefficient; b is a texture judgment value; a + b is 1.
It should be noted that, the value of a is positively correlated with the integrity of the fingerprint (i.e., the higher the integrity of the fingerprint, the larger the value of a), and the value of b is positively correlated with the definition of the fingerprint (i.e., the higher the definition of the fingerprint, the larger the value of b). In different embodiments, the specific value ranges of a and b may be adjusted according to actual needs, which is not limited in the embodiments of the present invention.
For the control module 23, in one embodiment, the predetermined determination threshold C0 is 0.7, the contour effective coefficient a is 0.4, the contour determination value a is 0.95, the texture effective coefficient B is 0.6, the texture determination value a is 0.2, and the fingerprint determination value C is a × a + B × B is 0.5.
After the control module 23 determines that the fingerprint determination value C is 0.5, it determines that the fingerprint determination value C is smaller than the predetermined determination threshold C0, and C is smaller than C0, i.e., the fingerprint determination value is smaller than the predetermined determination threshold, so that the control module 23 determines that the operation command is input by the child, and thus does not execute the operation command.
In another embodiment, the predetermined threshold C0 is 0.7, the contour significant coefficient a is 0.3, the contour determination value a is 0.95, the texture significant coefficient b is 0.7, the texture determination value a is 0.8, and the fingerprint determination value C is 0.845, so that C > C0, i.e., the fingerprint determination value is greater than the predetermined threshold, the control module 23 determines that the operation command is input by an adult and executes the operation command.
As can be seen from the above, the device for preventing the device from being operated by mistake provided by the embodiment of the present invention fully considers the outline and the texture characteristics of the fingerprint when determining whether the operation command is input by a child, so that the device has high accuracy.
In addition, the device for preventing the misoperation of the equipment has the advantages that the judgment object is the fingerprint, the acquisition difficulty of the fingerprint is low, and the device has good universality and wide application prospect.
Embodiments of the present invention further provide a controller, where the controller may perform the steps of the method for preventing the device from being operated incorrectly according to the above embodiments.
It is to be understood that the controller may be applied to a remote controller or a touch pad, etc.
Specifically, in an embodiment, a fingerprint obtaining module is disposed at a corresponding position of a touch pad of the device, and after the controller obtains fingerprint information obtained by the fingerprint obtaining module, the steps of the method for preventing the device from being operated by mistake in any of the above embodiments can be implemented, for example, the method includes:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour characteristic and the texture characteristic;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that the operation instruction is input by the child, and thus not executing the operation instruction.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 3: a Processor (Processor)310, a communication Interface (Communications Interface)320, a Memory (Memory)330 and a communication Bus (Bus)340, wherein the Processor 310, the communication Interface 320 and the Memory 330 communicate with each other via the communication Bus 340. The processor 310 may invoke a computer program stored on the memory 330 and executable on the processor 310 to perform the steps of the method for preventing a child from operating a device according to the embodiments, including:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour characteristic and the texture characteristic;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that the operation instruction is input by the child, and thus not executing the operation instruction.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products.
Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Further, an embodiment of the present invention discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the steps of the method for preventing a child from misoperation the device provided by the above method embodiments, for example, the method includes:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour characteristic and the texture characteristic;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that the operation instruction is input by the child, and thus not executing the operation instruction.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, may implement the steps of the method for preventing a child from operating a device by mistake, provided by the above-mentioned method embodiments, for example, including:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour characteristic and the texture characteristic;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that the operation instruction is input by the child, and thus not executing the operation instruction.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. A method of preventing malfunctioning of a device, comprising:
determining the outline characteristics and the texture characteristics of the fingerprint according to the acquired fingerprint information;
determining a fingerprint judgment value according to the contour feature and the texture feature;
and according to the judgment result that the fingerprint judgment value is smaller than the preset judgment threshold value, determining that an operation instruction is input by children, and thus not executing the operation instruction.
2. The method for preventing the misoperation of the equipment according to claim 1, wherein before the determining the contour feature and the texture feature of the fingerprint, the method further comprises:
and determining validity information of the fingerprint according to the fingerprint information, and determining whether to execute the operation instruction according to the validity information.
3. The method for preventing the device from being operated mistakenly according to claim 2, wherein the determining validity information of the fingerprint according to the acquired fingerprint information, and determining whether to execute the operation instruction according to the validity information comprises:
determining a completeness evaluation value of the fingerprint according to the completeness of the fingerprint, and determining a definition evaluation value of the fingerprint according to the definition of the fingerprint;
and determining not to execute the operation instruction according to a judgment result that the sum of the integrity evaluation value with the first weight and the definition evaluation value with the second weight is smaller than a preset validity judgment threshold value.
4. The method for preventing the misoperation of the equipment according to the claim 1, wherein the determining the outline characteristic and the texture characteristic of the fingerprint according to the acquired fingerprint information comprises:
determining an effective coefficient and a judgment value of the outline of the fingerprint according to the outline information of the fingerprint;
and determining a texture effective coefficient and a texture judgment value of the fingerprint according to the texture information of the fingerprint.
5. The method of claim 4, wherein the determining a fingerprint determination value according to the contour feature and the texture feature comprises:
taking the sum of the product of the contour effective coefficient and the contour judgment value and the product of the texture effective coefficient and the texture judgment value as the fingerprint judgment value;
wherein the sum of the contour significant coefficient and the texture significant coefficient is 1.
6. The method for preventing a device from being operated by mistake as set forth in claim 4, wherein the determining the contour significant coefficient and the contour judgment value of the fingerprint based on the contour information of the fingerprint comprises:
determining the effective coefficient of the fingerprint outline according to the integrity of the fingerprint outline;
and determining the matched fingerprint type according to the contour information of the fingerprint, and determining the contour judgment value according to the matching result.
7. The method for preventing the device from being operated by mistake according to claim 4, wherein the determining the texture significant coefficient and the texture judgment value of the fingerprint according to the texture information of the fingerprint comprises:
determining the effective coefficient of the fingerprint texture according to the definition of the fingerprint texture;
and judging whether the fingerprint is an adult fingerprint or a child fingerprint according to the texture thickness characteristic and the texture depth characteristic of the fingerprint, and determining the texture judgment value according to the judgment result.
8. An apparatus for preventing a device from being operated by mistake, comprising:
the characteristic determining module is used for determining the outline characteristic and the texture characteristic of the fingerprint according to the acquired fingerprint information;
the judgment value determining module is used for determining a fingerprint judgment value according to the contour feature and the texture feature;
and the control module is used for determining that an operation instruction is input by children according to a judgment result that the fingerprint judgment value is smaller than a preset judgment threshold value, so that the operation instruction is not executed.
9. The apparatus for preventing the misoperation according to claim 8, further comprising a validity judging module;
the validity judging module is used for determining validity information of the fingerprint according to the fingerprint information and determining whether to execute the operation instruction according to the validity information.
10. The apparatus for preventing device malfunction according to claim 8, wherein the characteristic determining module is specifically configured to:
determining an effective coefficient and a judgment value of the outline of the fingerprint according to the outline information of the fingerprint;
and determining a texture effective coefficient and a texture judgment value of the fingerprint according to the texture information of the fingerprint.
11. The apparatus for preventing a wrong operation device according to claim 9,
the judgment value determination module is specifically configured to: taking the sum of the product of the contour effective coefficient and the contour judgment value and the product of the texture effective coefficient and the texture judgment value as the fingerprint judgment value;
wherein the sum of the contour significant coefficient and the texture significant coefficient is 1.
12. A controller, characterized by:
the controller is adapted to perform the steps of the method of preventing malfunctioning of an apparatus as claimed in any one of claims 1 to 7.
13. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method for preventing a malfunctioning device according to any of claims 1 to 7 are implemented by the processor when executing said program.
14. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method of preventing a malfunctioning device according to any one of claims 1 to 7.
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