SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's not enough and defect, providing an automobile door handle finger vein assembly including finger vein determine module and shell to realize that finger vein identification technique carries out the vehicle unblock or locks the door, improve user's experience and feel and security performance.
The purpose of the utility model is realized through the following technical scheme: a finger vein assembly of an automobile door handle comprises a finger vein detection assembly and a shell, wherein the finger vein detection assembly comprises an image acquisition assembly, an infrared lamp plate, a light filter, a reflector, an induction assembly, a camera support, a lamp plate support, a mainboard support and a main control circuit board, the shell is sleeved on the finger vein detection assembly, the finger vein detection assembly is fixedly connected with the shell, a finger groove for accommodating a finger is arranged on one side of the finger vein detection assembly, which faces to one side of the shell, the finger vein detection assembly comprises a support plate, one end of the finger groove is fixedly arranged on the support plate and penetrates through the support plate, the other end of the finger groove is fixedly provided with the main control circuit board, the main control circuit board is fixedly connected with the mainboard support, one end of the finger groove, which is close to the support plate, is a finger groove top, one end of the finger groove, finger groove top and finger groove bottom all have partial cell body fretwork, finger groove bottom fretwork department fixed mounting has the camera support, the camera support has the reflector towards inside one side fixed mounting in finger groove, reflector opposite side fixed mounting has the light filter, camera support opposite side fixed mounting has the image acquisition subassembly, finger groove top fretwork department fixed mounting has the lamp plate mount, lamp plate mount opposite side fixed mounting has infrared lamp plate, the response subassembly includes first inductor and second inductor, first inductor fixed mounting is on the finger inslot wall of being close to backup pad one end, second inductor fixed mounting is on the finger inslot wall of being close to main control circuit board one end, infrared lamp plate, image acquisition subassembly and response subassembly all with main control circuit board electric connection.
Preferably, finger vein detection subassembly still includes waterproof subassembly, waterproof subassembly includes first waterproof circle and the waterproof circle of second, first waterproof circle passes through camera mount fixed mounting in finger groove bottom fretwork department, the waterproof circle of second passes through lamp plate mount fixed mounting in finger groove top fretwork department.
Preferably, the finger grooves are vertically arranged, and the groove body at one end of the finger groove close to the main control circuit board forms an inclination angle downwards.
Preferably, the cell body internal fixation that the finger groove is close to master control circuit board one end is equipped with the blind spot, second inductor fixed mounting be in on the blind spot, it is protruding that the finger groove is close to the fixed finger groove that is equipped with on the cell wall of lamp plate support one side, the finger groove arch is used for distinguishing the finger of the required discernment of user.
Preferably, the cell body that the finger groove is close to lamp plate support one side is binding face, the infrared lamp plate is arranged in the finger back that is located the finger groove with near infrared light irradiation to penetrate the finger and conduct finger vein image to the image acquisition subassembly in proper order.
Preferably, the sensing component is one or more of a capacitive sensor, a resistive sensor, an infrared sensor and a pressure sensor.
Preferably, the lamp panel support comprises transparent material, lamp panel support surface scribbles infrared optical filtering coating.
Preferably, the main control circuit board comprises a waterproof connector, one end of the waterproof connector is fixedly connected with the main control circuit board, and the other end of the waterproof connector extends out of the outer shell.
Compared with the prior art, the utility model following advantage and beneficial effect are included:
(1) the utility model discloses a set up and indicate the groove to with the fixed setting of each part in indicating groove both sides, thereby reduced occupation space, through setting up sensing assembly, can accurately discern user's finger, improve the efficiency and the degree of accuracy of discernment, through the structure mentioned above, make position structural design between each spare part compact, inside the door of conveniently imbedding, realized that finger vein recognition technology carries out the vehicle unblock or locks the door, improved the security performance.
(2) The utility model discloses a set up waterproof assembly, the waterproof performance of this equipment has been improved, thereby reach the car level and use, it is protruding through setting up finger groove at finger groove, make the finger that the user required detection discernment can normally put into the finger groove within range that finger groove arch cut off, avoid skew image acquisition scope, also can prevent that other fingers from being close to the finger influence that needs the discernment and indicating the normal collection of vein blood vessel image simultaneously, through with response subassembly and main control circuit board electric wire connection, when making response subassembly not sense the finger, infrared lamp plate and image acquisition subassembly just are in standby state, in order to play the effect of saving the electric energy, further reduce user's use cost.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
The utility model discloses a concrete implementation process as follows: as shown in fig. 1-3, an automobile door handle finger vein assembly comprises a finger vein detection assembly and a housing 1, wherein the finger vein detection assembly comprises an image acquisition assembly 3, an infrared lamp panel 13, a light filter 6, a reflector 5, an induction assembly, a camera support 4, a lamp panel support 12, a mainboard support 14 and a main control circuit board 15, the housing 1 is sleeved on the finger vein detection assembly, the finger vein detection assembly is fixedly connected with the housing 1, a finger groove 17 for accommodating a finger is arranged on one side of the finger vein detection assembly, which faces the housing 1, the finger groove detection assembly comprises a support plate 2, one end of the finger groove 17 is fixedly arranged on the support plate 2 and penetrates through the support plate 2, the other end of the finger groove 17 is fixedly provided with the main control circuit board 15, the main control circuit board 15 is fixedly connected with the mainboard support 14, the finger groove 17 is close to one end of the supporting plate 2 and is a top portion of the finger groove 17, the finger groove 17 is close to one end of the main control circuit board 15 and is a bottom portion of the finger groove 17, the top portion of the finger groove 17 and the bottom portion of the finger groove 17 are both partially hollowed out, a camera support 4 is fixedly installed at the hollowed part of the bottom portion of the finger groove 17, a reflector 5 is fixedly installed on one side of the camera support 4 facing the inside of the finger groove 17, an optical filter 6 is fixedly installed on the other side of the reflector 5, an image acquisition assembly 3 is fixedly installed on the other side of the camera support 4, a lamp panel fixing frame is fixedly installed at the hollowed part of the top portion of the finger groove 17, an infrared lamp panel 13 is fixedly installed on the other side of the lamp panel fixing frame, the sensing assembly comprises a first sensor 8 and a second sensor 9, the first sensor 8 is fixedly installed on the inner wall of the finger groove 17 close to one end of the, the infrared lamp panel 13, the image acquisition assembly 3 and the induction assembly are electrically connected with the main control circuit board 15, when a user needs to unlock the vehicle door, the user only needs to stretch fingers into the finger grooves 17 in the finger vein detection assembly, preferably, the finger grooves 17 are vertically arranged, the groove body at one end, close to the main control circuit board 15, of the finger grooves 17 forms an inclination angle downwards, the finger grooves 17 are enough for accommodating four fingers except thumbs of the left hand or the right hand of the user, and simultaneously accord with ergonomics better, after the user stretches the fingers into the finger grooves 17, the infrared lamp panel 13 emits near infrared light between 760nm and 1100nm to irradiate the fingers in the finger grooves 17 to form finger vein images, the groove body at the bottom of the finger grooves 17 is partially hollow, so that the finger vein images formed by irradiating the fingers with the near infrared light can pass through the reflector 5, since the reflective mirror 5 is fixedly installed inside the camera holder 4, preferably, the reflective mirror 5 is parallel to the finger groove 17, so as to improve the conduction effect of the finger vein image, the reflective mirror 5 conducts the finger vein image into the optical filter 6, the optical filter 6 is a near infrared optical filter 6, which can cut off visible light with a wavelength less than 760nm and only allow near infrared light with a wavelength greater than 760nm to pass through, so as to cut off the visible light outside the optical filter 6 and prevent the visible light from affecting the formed finger vein image, the finger vein image is transmitted into the visual field of the image acquisition assembly 3 after passing through the optical filter 6, the image acquisition assembly 3 transmits the acquired finger vein image into the main control circuit board 15, and finally the main control circuit board 15 performs finger vein analysis and identification according to the received finger vein image, in this embodiment, the image acquisition assembly 3 may be a CCD camera, a camera, and a camera, In one of the CMOS cameras, the processing chip is integrated on the main control circuit board 15, when the finger vein image received by the main control circuit board 15 is analyzed and identified, and the finger vein image is successfully identified, the vehicle door is automatically unlocked, and through the structure, the vehicle unlocking or vehicle door locking by the finger vein identification technology is realized, and the safety performance is improved.
As shown in fig. 1-3, in one embodiment, the finger vein detection assembly further includes a waterproof assembly, the waterproof assembly includes a first waterproof ring 7 and a second waterproof ring 10, the first waterproof ring 7 is fixedly mounted at a hollow-out portion at the bottom of the finger groove 17 through the camera support 4, the second waterproof ring 10 is fixedly mounted at a hollow-out portion at the top of the finger groove 17 through the lamp panel fixing frame, and the hollow-out portions at the bottom of the finger groove 17 and the top of the finger groove 17 are sealed through the first waterproof ring 7 and the second waterproof ring 10, so that a waterproof and dustproof effect can be effectively achieved, elements in a closed space formed by the finger vein detection assembly and the housing 1 are protected, the service life of the finger vein detection assembly is prolonged, the finger vein detection assembly is suitable for automobile-level applications, and the application range of the product is increased.
As shown in fig. 1-3, in one embodiment, the finger groove 17 is vertically disposed, the groove body at one end of the finger groove 17 close to the main control circuit board 15 forms an inclination downward, so that a user can conveniently place a palm into the finger groove 17 vertically, and has a good use experience feeling, a blind spot 19 is fixedly disposed in the groove body at one end of the finger groove 17 close to the main control circuit board 15, the second sensor 9 is fixedly mounted on the blind spot 19, a finger groove protrusion 18 is fixedly disposed on the groove wall of the finger groove 17 close to one side of the lamp panel bracket 12, the finger groove protrusion 18 is used for distinguishing a finger that the user needs to identify, when the user inserts the palm into the finger groove 17, the finger that the user needs to detect and identify can be normally placed into the range of the finger groove 17 separated by the finger groove protrusion 18, so as to avoid deviating from an image acquisition range, and at the same time, prevent other fingers from being too close to the finger that needs to identify and affecting normal acquisition of finger vein images, the groove body of the finger groove 17 close to one side of the lamp panel support 12 is a binding surface, the infrared lamp panel 13 is used for irradiating the back of a finger positioned in the finger groove 17 with near infrared light and sequentially transmitting a finger vein image to the image acquisition assembly 3 through the finger, wherein preferably, the blind spot 19 can be a convex point or a concave point, the blind spot 19 is fixedly arranged in the inclination angle, so that when a user extends the finger into the finger groove 17, the user only needs to press the finger to the position of the blind spot 19 and touch the finger belly to the inner wall of the finger groove 17, the first sensor 8 and the second sensor 9 can sense the pressing action of the finger and generate a feedback signal to be transmitted to the main control circuit board 15, the main control circuit board 15 controls the infrared lamp panel 13 and the image acquisition assembly 3 to be started according to the received feedback signal, and therefore when the sensing assembly does not sense the finger, the infrared lamp panel 13 and the image acquisition assembly 3 are in a standby state, so that the effect of saving electric energy is achieved, the use cost of a user is further reduced, and the experience comfort level of the user is improved.
As shown in fig. 1-3, in one embodiment, the sensing component is one or more of a capacitive sensor, a resistive sensor, an infrared sensor, and a pressure sensor, the lamp panel support 12 is made of a transparent material, the surface of the lamp panel support 12 is coated with an infrared filter coating, so that near-infrared light emitted by the infrared lamp panel 13 can be transmitted into the finger slot 17 through the lamp panel support 12, the main control circuit board 15 includes a waterproof connector 20, one end of the waterproof connector 20 is fixedly connected with the main control circuit board 15, the other end of the waterproof connector 20 extends out of the housing 1, so that the finger vein detection component is conveniently connected with an internal circuit of the automobile, preferably, the image acquisition component 3 is fixedly mounted on the camera support 4, the infrared lamp panel 13 is fixedly mounted on the lamp panel support 12, thereby be convenient for install the dismantlement to image acquisition subassembly 3 and infrared lamp plate 13.
In one embodiment, the support plate 2 or the housing 1 is provided with a logo, so as to facilitate production management of a plurality of automobile door handle finger vein assemblies, and the logo contains basic information of each automobile door handle finger vein assembly, such as a product number, a product state, a delivery place and the like. The identification can be a bar code, a two-dimensional code or an RFID module, and the identification of each automobile door handle finger vein assembly can be scanned through a corresponding scanning and identifying device to obtain the information of each automobile door handle finger vein assembly, for example, the number of the product of the automobile door handle finger vein assembly, the state of the product, the good product or the defective product, the place of shipment and the like are obtained, so that the production management of the automobile door handle finger vein assembly is facilitated.
The utility model discloses a theory of operation does: a user stretches a finger into a finger groove 17 in the finger vein detection assembly, when the user presses the finger to a blind spot 19 in the finger groove 17 and touches the finger belly on the inner wall of the finger groove 17, a first sensor 8 and a second sensor 9 sense the pressing action of the finger and generate a feedback signal to be transmitted into a main control circuit board 15, the main control circuit board 15 controls an infrared lamp panel 13 and an image acquisition assembly 3 to be started according to the received feedback signal, the infrared lamp panel 13 emits near infrared light to irradiate the finger in the finger groove 17 so as to generate a finger vein image, the finger vein image firstly passes through a reflector 5 and then is transmitted to an optical filter 6 through the reflector 5, the optical filter 6 transmits the finger vein image to the visual field of the image acquisition assembly 3, the image acquisition assembly 3 transmits the acquired finger vein image to the main control circuit board 15, and finally the main control circuit board 15 performs finger vein analysis and identification according to the received finger vein image, after the finger vein image is successfully identified, the vehicle door is automatically unlocked, and by the structure, the vehicle door is unlocked or locked by the finger vein identification technology, so that the safety performance is improved.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.