CN221352121U - Password input device and intelligent door lock - Google Patents
Password input device and intelligent door lock Download PDFInfo
- Publication number
- CN221352121U CN221352121U CN202322924075.6U CN202322924075U CN221352121U CN 221352121 U CN221352121 U CN 221352121U CN 202322924075 U CN202322924075 U CN 202322924075U CN 221352121 U CN221352121 U CN 221352121U
- Authority
- CN
- China
- Prior art keywords
- key panel
- controller
- password input
- distance measuring
- keys
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The utility model discloses a password input device and an intelligent door lock, comprising a controller, and a laser projector, an image acquisition device and a distance measuring device which are connected with the controller; the controller controls the laser projector to project the key panel, the image acquisition device acquires image information on the projected key panel, the distance measuring device measures the distance between the touch object on the projected key panel and the distance measuring device, and the controller can determine the password input on the projected key panel based on the image information acquired by the image acquisition device and the distance information measured by the distance measuring device. Based on the password input device of the embodiment, a user can realize the input of the password by touching the keys of the projected key panel, the embodiment combines the image information and the distance information to determine the pressed keys on the projected key panel, and based on the pressed keys, the input password can be accurately identified, and the accuracy of password input identification is effectively improved.
Description
Technical Field
The utility model relates to the technical field of laser projection, in particular to a password input device and an intelligent door lock.
Background
The password input device in the market at present usually realizes the input of password through touching the button on the keyboard, however, people frequently touch the button and easily cause button surface wearing and tearing and button failure to, the user easily leaves the input trace when touching the keyboard, thereby leads to the password of input to be easily cracked, influences user's personal safety and property safety.
Disclosure of utility model
The utility model aims to overcome the defects and shortcomings of the prior art and provide a password input device and an intelligent door lock, which can improve the password input safety.
The utility model provides a password input device which comprises a controller, a laser projector, an image acquisition device and a distance measuring device, wherein the controller is used for controlling the laser projector to acquire a password;
the laser projector is connected with the controller and is used for projecting the key panel under the triggering of the controller;
The image acquisition device is connected with the controller and is used for acquiring image information on the projection key panel and sending the image information to the controller;
The distance measuring device is connected with the controller and is used for measuring the distance between the touch object on the projection key panel and the distance measuring device and sending the measured distance information to the controller;
And the controller is used for determining the input password on the projection key panel according to the received image information and the distance information.
In an alternative embodiment, the laser projector includes a laser generator and a laser lens, the laser generator is connected to the controller, the laser lens is located on an optical path of the laser generator, and a projection signal of the key panel generated by the laser generator is refracted to the door panel through the laser lens.
In an alternative embodiment, the password input device further comprises a filter circuit; the filter circuit is arranged between the controller and the laser projector; the filter circuit is disposed between the controller and the laser projector.
In an alternative embodiment, the filter circuit includes a first capacitor, a second capacitor, and a first resistor;
The first end of the first capacitor is connected with the first end of the first resistor and the controller respectively, the second end of the first capacitor is connected with the second end of the second capacitor, and the second end of the first resistor is connected with the first end of the second capacitor and the laser projector respectively.
In an alternative embodiment, the key panel comprises at least one row of keys; the ranging device comprises at least one ranging element corresponding to the at least one row of keys;
The distance measuring element is arranged on the left side of one row of keys of the key panel;
Or the distance measuring element is arranged on the right side of a row of keys of the key panel.
In an alternative embodiment, the key panel includes at least one row of keys; the distance measuring device comprises at least one distance measuring element corresponding to the at least one row of keys;
The distance measuring element is arranged right above or right below a row of keys of the key panel;
or the distance measuring element is arranged right below a row of keys of the key panel.
In an alternative embodiment, the image acquisition device, the laser projector and the distance measuring device are arranged on the same side of the projected key panel.
In an optional embodiment, the password input device further comprises a human body sensing device connected with the controller, and the controller controls the laser projector to project the key panel to the door plate according to a detection signal of the human body sensing device.
In an alternative embodiment, the password input device further comprises a power supply module; the power supply module comprises a power supply, an inductor, a second resistor and a third capacitor; the power supply is connected with the first end of the second resistor through the inductor, the second end of the second resistor is respectively connected with the first end of the third capacitor and the controller, and the second end of the third capacitor is grounded.
The utility model also provides an intelligent door lock, which comprises the password input device.
The password input device comprises a controller, a laser projector, an image acquisition device and a distance measuring device, wherein the laser projector, the image acquisition device and the distance measuring device are connected with the controller; the controller controls the laser projector to project the key panel, the image acquisition device acquires image information on the projected key panel, the distance measuring device measures the distance between the touch object on the projected key panel and the distance measuring device, and the controller can determine the password input on the projected key panel based on the image information acquired by the image acquisition device and the distance information measured by the distance measuring device. Based on the password input device of the embodiment, a user can realize the input of the password by touching the keys of the projected key panel, so that a password input trace is not easy to leave, and the safety of the password input device can be effectively improved; in addition, the embodiment combines the image information and the distance information to determine the pressed key on the projection key panel, and based on the pressed key, the input password can be accurately identified, so that the accuracy of password input identification is effectively improved.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic diagram of a password input device according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a key panel according to an embodiment of the present utility model;
FIGS. 3a and 3b are schematic diagrams illustrating a configuration of a password input device according to an embodiment of the present utility model;
FIG. 4 is a circuit diagram of a filter circuit in one embodiment of the utility model;
FIG. 5 is a circuit diagram of a power module in one embodiment of the utility model;
fig. 6 is a schematic structural view of an intelligent door lock according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the manner of the present utility model will be described in further detail with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application as detailed in the accompanying claims. In the description of the present application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present application, unless otherwise indicated, "a number" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The utility model provides a password input device, which can be applied to equipment needing to input passwords, such as door locks, safes and the like, and can be arranged on planes such as door panels or walls, and the like, as shown in fig. 1, the password input device comprises: a controller 110, a laser projector 120, an image acquisition device 130, and a ranging device 140;
The controller 110 is respectively connected with the laser projector 120, the image acquisition device 130, the distance measuring device 140 and the like;
The laser projector 120 is used for projecting a key panel under the triggering of the controller; as shown in fig. 2, the laser projector 120 generates a projection signal of the key panel 210, and projects the projection signal onto a plane such as a door panel or a wall, and the projection of the key panel 210 is presented on the plane. The key panel 210 may include keys associated with a password, such as number keys 0-9, or the key panel 210 may include keys associated with a password as well as function keys, wherein the function keys may be specifically configured according to the device to which the password input apparatus is applied.
In the embodiment of the application, the function keys can comprise a return function key and a confirm function key; the return function key is used for canceling the password input, the confirm function key is used for confirming the password input, and after the user finishes inputting the password by triggering the number keys 0-9, the password input can be completed by triggering the confirm function key.
The image acquisition device 130 is used for acquiring the image information on the key panel and sending the image information to the controller, the image acquisition device 130 can be just opposite to the key panel, and the image acquisition range of the image acquisition device 130 can cover the whole key panel, so that the image acquisition device 130 can acquire the image of the area where the whole key panel is located, and further, the user can conveniently determine which key on the key panel is touched by the user, and the image acquisition device 130 can be a camera, a camera and other devices which can be used for shooting images.
The distance measuring device 140 is configured to measure a distance between the touch object on the projected key panel and the distance measuring device and send the measured distance information to the controller 110; the touching object is an object contacting the key panel, in this embodiment of the present application, the touching object may be a finger, and the distance measuring device 140 may be an optical distance sensor, an infrared distance sensor, or an ultrasonic distance sensor.
The controller 110 is configured to determine an input password on the projected key panel according to the received image information and the distance information.
Specifically, the controller 110 may perform image analysis on the image information acquired by the image acquisition device 130 using an existing image analysis algorithm, thereby determining which key on the key panel is touched by the touching object.
The detection signal of the ranging device 140 is used to determine the distance between the touch object and the ranging device, and the controller 110 may determine the position of the touch object according to the distance between the touch object and the ranging device, thereby further determining which key of the key panel is touched by the touch object.
The correspondence between the distance between the touch object and the ranging device and the key of the key panel may be input to the controller 110 in advance by the user, where the correspondence between the distance between the touch object and the ranging device and the key of the key panel is used to determine keys corresponding to different distances, for example, the distance between the touch object and the ranging device corresponds to the key 1 on the key panel a cm, the distance between the touch object and the ranging device corresponds to the key 2 on the key panel b cm, and so on. When the key contacted by the touch object is touched, determining which key of the key panel is contacted by the touch object according to the distance information and the corresponding relation between the distance between the touch object and the distance measuring device and the key of the key panel.
Specifically, the controller 110 may first determine keys in the key panel that are blocked by the touch object based on the image information, thereby determining which key on the key panel the touch object contacts. However, in the practical application process, when two or more keys are blocked in the key panel are likely to be identified, so that, in order to solve the above problem, in the embodiment of the present application, the key contacted by the touch object is further confirmed by combining the distance between the touch object detected by the ranging device 140 and the ranging device, and the key meeting the above two conditions is selected, thereby improving the accuracy of inputting the password identification.
Or in another embodiment, the controller 110 may determine that the touch object touches the keys of the key panel according to the distance information, however, in the actual application process, when determining that the touch object touches the keys of the key panel according to the distance information, the two keys A, B may be located at the same distance, so in the embodiment of the present application, the key B, C blocked by the touch object in the key panel is determined according to the image information, and then the key B meeting the above two conditions is selected therefrom, and the key B is determined to be the key touched by the touch object, thereby improving the accuracy of inputting the password identification.
The password input device comprises a controller, a laser projector, an image acquisition device and a distance measuring device, wherein the laser projector, the image acquisition device and the distance measuring device are connected with the controller; the controller controls the laser projector to project the key panel, the image acquisition device acquires image information on the projected key panel, the distance measuring device measures the distance between the touch object on the projected key panel and the distance measuring device, and the controller can determine the password input on the projected key panel based on the image information acquired by the image acquisition device and the distance information measured by the distance measuring device. Based on the password input device of the embodiment, a user can realize the input of the password by touching the keys of the projected key panel, so that a password input trace is not easy to leave, and the safety of the password input device can be effectively improved; in addition, the embodiment combines the image information and the distance information to determine the pressed key on the projection key panel, and based on the pressed key, the input password can be accurately identified, so that the accuracy of password input identification is effectively improved.
In one embodiment, the code input device may further include a lock body, where the lock body may be an electronic lock body, and the lock body may be used to control a state of opening and closing a space such as a door panel, a box body, or a cabinet body, and specifically, the lock body may be in a closed state, and unlock the lock body according to an unlocking signal of the controller.
Further, after obtaining the input password of the user, the controller 110 may compare the password input by the user with the preset password to determine whether to output the unlocking signal to the lock body, thereby controlling the lock body to be unlocked. Specifically, when it is confirmed that the input password is consistent with the preset password, the controller 110 outputs an unlocking signal or a locking signal to the lock body, thereby unlocking the lock body and improving the reliability and safety of the lock body.
In one embodiment, the laser projector 120 includes a laser generator and a laser lens, the laser generator is connected to the controller 110, the laser lens is located on an optical path of the laser generator, and a projection signal of the key panel generated by the laser generator is refracted to the door panel through the laser lens.
The laser generator is used for generating a key panel projection signal according to the triggering of the controller 110, and the laser lens is used for changing the light path of the key panel projection signal, specifically, the laser lens is used for refracting the key panel projection signal onto the door plate.
The laser lens can be a plane lens, and the installation position and angle of the laser lens can be determined according to the position of the key panel to be projected.
Ranging device 140 may include one or more ranging elements, each of which may correspond to a row of keys or a column of keys.
In one embodiment, as shown in FIG. 2, the key panel may include at least one row of keys; the ranging device comprises at least one ranging element corresponding to the at least one row of keys;
The distance measuring element is arranged on the left side of one row of keys of the key panel;
Or the distance measuring element is arranged on the right side of a row of keys of the key panel.
Or in another embodiment, as shown in fig. 2, the key panel includes at least one row of keys; the distance measuring device comprises at least one distance measuring element corresponding to the at least one row of keys;
The distance measuring element is arranged right above or right below a row of keys of the key panel;
or the distance measuring element is arranged right below a row of keys of the key panel.
The distance measuring element of the embodiment of the application can be an infrared distance sensor, the infrared distance sensor can determine the distance between the measured object and the infrared distance sensor by detecting the time from the emission of infrared light to the re-reception after the reflection of the measured object, and the measured object can be a touch object contacting the key panel, such as a finger, a palm and the like.
In the embodiment of the application, the corresponding distance measuring element is arranged on each row of keys or each column of keys of the key panel, so that the keys contacted with the touch object can be determined according to the distance between the touch object detected by the distance measuring element and the distance measuring element, and the password input by the user is obtained.
Referring to fig. 3a and 3b, which are schematic structural diagrams of a password input device according to an embodiment, as shown in fig. 3a, a laser projector 120 may project a key panel 210 on a plane such as a door panel or a wall, and the image acquisition device 130, the laser projector 120 and the ranging device 140 may be disposed on the same side of the projected key panel 210.
The laser projector 120 of the present application may be an upward projecting key panel, i.e. the projected key panel 210 is higher than the laser projector 120 at a height perpendicular to the horizontal plane, in a preferred embodiment, the image acquisition device 130 is higher than the laser projector 120 at a height perpendicular to the horizontal plane, and the laser projector 120 is higher than the distance measuring device 140; the specific positional relationship of the three can be shown in fig. 3 b.
Through setting up image acquisition device 130 above laser projector 120, ensure that image acquisition device 130 can gather the image information on the whole key panel 210 of laser projector 120 projection, simultaneously, can discern the button on the key panel that the user really touched through combining image information and distance information with range unit 140 setting up in laser projector 120 below, improve the accuracy of password identification. In one embodiment, the password input device may further include a human body sensing device connected to the controller, the human body sensing device being configured to detect whether a person approaches the door panel, and in particular, to output a detection signal to the controller 110 when the human body sensing device detects that a person approaches the door panel.
The human body sensing device can be an infrared sensor and other devices which can be used for sensing whether a human body exists or not, the human body sensing device can be arranged on the door plate, the human body sensing range can be an area in front of the door plate, and when a human body is identified in the human body sensing area, a person is determined to be close to the door plate.
The controller 110 controls the laser projector to project the key panel to the door panel according to the detection signal of the human body sensing device, and when the human body sensing device does not detect that a person is close to the door panel, the controller 110 can control the laser projector to stop projecting the key panel to the door panel, thereby saving electric energy.
In one embodiment, the password input device further comprises a filter circuit disposed between the controller and the laser projector.
The filter circuit is used for filtering ripples in the signals so as to improve the reliability of the signals.
In the embodiment of the application, the signal output by the controller to the laser projector is filtered by the filter circuit, so that the interference in the signal transmission process is reduced, and the key panel projected by the laser projector can be more real.
As shown in fig. 4, in one embodiment, the filter circuit includes a first capacitor C27, a second capacitor C28, and a first resistor R57;
The first end of the first capacitor C27 is connected to the first end of the first resistor R57 and the controller 110, the second end of the first capacitor C27 is connected to the second end of the second capacitor C28, and the second end of the first resistor R57 is connected to the first end of the second capacitor C28 and the laser projector 120.
In the embodiment of the application, the first capacitor C27, the second capacitor C28 and the first resistor R57 are used for forming a filter circuit, and the filter circuit is used for filtering the signal output by the controller to the laser projector, so that the reliability of the signal projected by the laser projector is improved.
As shown in fig. 5, in one embodiment, the password input device further includes a power supply module; the power supply module comprises a power supply, an inductor L1, a second resistor R1 and a third capacitor C2; the power supply is connected to the first end of the second resistor R1 through the inductor L1, the second end of the second resistor R1 is connected to the first end of the third capacitor C2 and the controller 110, and the second end of the third capacitor C2 is grounded.
In the embodiment of the application, the inductor L1, the second resistor R1 and the third capacitor C2 are utilized to filter the power supply signal, so as to reduce the interference signal in the power supply signal and improve the reliability of the power supply signal and the power supply module input to the controller 110.
As shown in fig. 6, an embodiment of the present application further provides an intelligent door lock 300, including a password input device 310 as described in any one of the above.
The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (10)
1. The password input device is characterized by comprising a controller, a laser projector, an image acquisition device and a distance measuring device;
the laser projector is connected with the controller and is used for projecting the key panel under the triggering of the controller;
The image acquisition device is connected with the controller and is used for acquiring image information on the projection key panel and sending the image information to the controller;
The distance measuring device is connected with the controller and is used for measuring the distance between the touch object on the projection key panel and the distance measuring device and sending the measured distance information to the controller;
And the controller is used for determining the input password on the projection key panel according to the received image information and the distance information.
2. The password input apparatus of claim 1, wherein: the laser projector comprises a laser generator and a laser lens, the laser generator is connected with the controller, the laser lens is located on a light path of the laser generator, and a key panel projection signal generated by the laser generator is refracted to the door plate through the laser lens.
3. The password input apparatus of claim 2, wherein: the password input device also comprises a filter circuit; the filter circuit is disposed between the controller and the laser projector.
4. A password input device as in claim 3, wherein: the filter circuit comprises a first capacitor, a second capacitor and a first resistor;
The first end of the first capacitor is connected with the first end of the first resistor and the controller respectively, the second end of the first capacitor is connected with the second end of the second capacitor, and the second end of the first resistor is connected with the first end of the second capacitor and the laser projector respectively.
5. The password input apparatus of claim 1, wherein: the key panel comprises at least one row of keys; the ranging device comprises at least one ranging element corresponding to the at least one row of keys;
The distance measuring element is arranged on the left side of one row of keys of the key panel;
Or the distance measuring element is arranged on the right side of a row of keys of the key panel.
6. The password input apparatus of claim 1, wherein: the key panel comprises at least one row of keys; the distance measuring device comprises at least one distance measuring element corresponding to the at least one row of keys;
The distance measuring element is arranged right above or right below a row of keys of the key panel;
or the distance measuring element is arranged right below a row of keys of the key panel.
7. A password input device according to any of claims 1-6, wherein:
The image acquisition device, the laser projector and the distance measuring device are arranged on the same side of the projection key panel.
8. A password input device according to any of claims 1-6, wherein: the password input device further comprises a human body sensing device connected with the controller, and the controller controls the laser projector to project the key panel to the door plate according to detection signals of the human body sensing device.
9. A password input device according to any of claims 1-6, wherein: the password input device also comprises a power supply module; the power supply module comprises a power supply, an inductor, a second resistor and a third capacitor; the power supply is connected with the first end of the second resistor through the inductor, the second end of the second resistor is respectively connected with the first end of the third capacitor and the controller, and the second end of the third capacitor is grounded.
10. An intelligent door lock, its characterized in that: a password input device comprising any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322924075.6U CN221352121U (en) | 2023-10-30 | 2023-10-30 | Password input device and intelligent door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322924075.6U CN221352121U (en) | 2023-10-30 | 2023-10-30 | Password input device and intelligent door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221352121U true CN221352121U (en) | 2024-07-16 |
Family
ID=91833051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322924075.6U Active CN221352121U (en) | 2023-10-30 | 2023-10-30 | Password input device and intelligent door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221352121U (en) |
-
2023
- 2023-10-30 CN CN202322924075.6U patent/CN221352121U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107231797A (en) | A kind of unlocking method of vehicle and vehicle system for unlocking | |
| CN103228495B (en) | Recognition method of manipulation gesture and corresponding calibration method | |
| US11193310B2 (en) | Electronic lock for safes | |
| US8390448B2 (en) | Apparatus and method for electronic detection of key insertion and removal | |
| CN102890608B (en) | The screen locking awakening method of terminal and terminal and device | |
| CN108898724A (en) | Intelligent human-face identification lock | |
| EP2596478A1 (en) | Fingerprint sensors and systems incorporating fingerprint sensors | |
| US20060255907A1 (en) | Fingerprint Lock | |
| CN115162854B (en) | Finger locking and unlocking method | |
| CN106249899A (en) | Gesture recognition system, electric appliance and control method thereof | |
| CN221352121U (en) | Password input device and intelligent door lock | |
| CN209993023U (en) | Automatic alarm access control system | |
| JP6459114B2 (en) | Electric lock system | |
| KR100774029B1 (en) | Access control devices in secure areas | |
| CN109521874A (en) | A kind of unlocking screen system and method based on thermoinduction detection | |
| CN111731956B (en) | Equipment and method for pressing button of non-contact elevator | |
| CN108255531A (en) | Electronic equipment and its visual identifying system and method | |
| JP2010090582A (en) | Authentication device | |
| CN111223221A (en) | Intelligent community access control system equipment based on fingerprint identification | |
| CN109610937A (en) | A kind of anti-trailing method of intelligent door lock, intelligent door lock and storage medium | |
| CN105867683B (en) | A kind of touch-control system and its control method with intelligent recognition function | |
| CN104183045A (en) | Access Control System Based on Capacitive Sensing Technology | |
| CN104345905A (en) | Control method for touch air mouse | |
| KR101295855B1 (en) | Electric device controlled by capturing motion based on infrared light signal transmitting device | |
| CN107762363A (en) | Using the automatic safety door of iris recognition technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |