An intelligent lock and control system with two-stage control

Abstract

The present invention relates to the field of smart homes, and discloses an intelligent lock and a control system with two-stage control, which have the following characteristics: 1. Two accommodation spaces are formed in the drawer, and the unlocking difficulties of the first lock tongue and the second lock tongue are different. The first lock tongue can be unlocked only when the first fingerprint information can be matched. At this time, the unlocked state can divert the attention of the unlocker to avoid violent damage to the lock, with higher safety performance. At the same time, it is very difficult to completely retain the edge fingerprint of the finger during daily use, which also increases the difficulty of complete fingerprint replication and improves the safety performance of the lock; 2. By adjusting the distance between the first fingerprint acquisition element and the second fingerprint acquisition element, the acquisition position of the corresponding finger edge fingerprint changes each time an unlocking is performed. That is, after each successful unlocking, the verification position of the finger edge fingerprint will change randomly, avoiding the occurrence of false unlocking caused by fingerprint residue after the previous unlocking and improving the accuracy of the fingerprint lock.

Description

Technical Field

[0001] The present invention relates to the field of smart homes, and more particularly to an intelligent lock and control system with two-stage control. Background Art

[0002] With the development of the times and the advancement of technology, electronic products using fingerprint unlocking are becoming more and more common. It can be applied not only to products such as mobile phone unlocking, door locks, and safe locks, but also to filing cabinets, desk drawers, bedside tables, wardrobes, shoe cabinets, storage cabinets, etc. that we often come into contact with in our work and life. Currently, office cabinet locks, drawer locks, and filing cabinet locks that people come into contact with more often usually use traditional key locks. The difficulty of cracking a key lock depends on the complexity of the lock core and is easily damaged. Fingerprint locks are widely welcomed due to their convenience. However, since fingerprints are easily left on the surface of objects, criminals may crack the fingerprint lock by collecting the fingerprints of users, resulting in low security performance. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an intelligent lock and control system with two-stage control, which uses the fingerprint of the finger pulp and the fingerprint of the finger edge for verification at the same time, increasing the difficulty of cracking the fingerprint lock and improving the security performance.

[0004] To achieve the above first purpose, the present invention provides the following technical solutions:

[0005] An intelligent lock with two-stage control includes a first locking tongue, a second locking tongue, a fingerprint collection device, and a comparison module. The first locking tongue and the second locking tongue are distributed along the sliding direction of the drawer, so that the drawer forms two accommodating spaces.

[0006] The fingerprint collection device includes a first fingerprint collection element and a plurality of second fingerprint collection elements. The second fingerprint collection elements are arranged around the first fingerprint collection element and are inclined to the first fingerprint collection element. The first fingerprint collection element is used to collect the fingerprint of the finger pulp and define it as the first fingerprint information, and the second fingerprint collection element is used to collect the fingerprint of the finger edge and define it as the second fingerprint information.

[0007] The comparison module is preset with standard fingerprint information. The comparison module obtains the first fingerprint information and the second fingerprint information and compares them with the standard fingerprint information respectively. If the matching degree between the first fingerprint information and the standard fingerprint information is lower than the preset first matching degree, a locking signal is generated to lock both the first lock tongue and the second lock tongue. If the matching degree between the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree between the second fingerprint information and the standard fingerprint information is not lower than the preset second matching degree, an all-unlocking signal is generated to unlock both the first lock tongue and the second lock tongue. If the matching degree between the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree between the second fingerprint information and the standard fingerprint information is lower than the preset second matching degree, a partial-unlocking signal is generated to unlock either the first lock tongue or the second lock tongue to open one of the accommodation spaces.

[0008] In the present invention, preferably, the intelligent lock includes a first housing, and a first driving assembly is arranged inside the first housing. The first driving assembly includes a rotary driving member, a first transmission rod, and a first slider. The first transmission rod is rotatably connected to the first housing. The rotary driving member is used to drive the first transmission rod to rotate. The first slider is threadedly connected to the first transmission rod. The first slider is fixedly connected to the first lock tongue. The first lock tongue is slidably connected to the first housing. When the first transmission rod rotates, the first transmission rod drives the first slider to slide along the axis direction of the first transmission rod so that the first lock tongue extends out of or retracts into the first housing.

[0009] In the present invention, preferably, the intelligent lock includes a second housing, and a second driving assembly is arranged inside the second housing. The second driving assembly includes a second transmission rod and a second slider. The second transmission rod is rotatably connected to the second housing. The rotary driving member is used to drive the second transmission rod to rotate. The second slider is threadedly connected to the second transmission rod. The second slider is fixedly connected to the second lock tongue. The second lock tongue is slidably connected to the second housing. When the second transmission rod rotates, the second transmission rod drives the second slider to slide along the axis direction of the second transmission rod so that the second lock tongue extends out of or retracts into the second housing.

[0010] In the present invention, preferably, the intelligent lock includes a transmission switching component, which includes a first synchronizing rod, a second synchronizing rod, a synchronizing shaft sleeve, and a linear driving member. Among them, the first synchronizing rod and the first transmission rod, and the second synchronizing rod and the second transmission rod are both driven by bevel gears, and the first synchronizing rod and the second synchronizing rod are coaxially arranged. The synchronizing shaft sleeve is slidably mounted on the first synchronizing rod. An insertion portion is formed at the end of the synchronizing shaft sleeve close to the second synchronizing rod. The linear driving member is used to drive the synchronizing shaft sleeve to slide along the axis of the first synchronizing rod so that the insertion portion engages with or disengages from the second synchronizing rod.

[0011] In the present invention, preferably, the intelligent lock includes a limiting lock groove. Locking guiding surfaces are formed on both the first lock tongue and the second lock tongue. Reset elastic members are provided on both the first lock tongue and the second lock tongue. When the locking guiding surface abuts against the limiting lock groove, the reset elastic member is compressed by extrusion, and the first lock tongue and the second lock tongue are reset and fall into the limiting lock groove.

[0012] In the present invention, preferably, the fingerprint acquisition device includes a spacing adjustment driving member, and the spacing adjustment driving member changes the acquisition range of the second fingerprint acquisition element by adjusting the spacing between the second fingerprint acquisition element and the first fingerprint acquisition element.

[0013] To achieve the above second object, the present invention provides the following technical solutions:

[0014] A control system with two-stage control provides a control lock with two-stage control, including a first lock tongue, a second lock tongue, a fingerprint acquisition device, and a comparison module. The first lock tongue and the second lock tongue are distributed along the sliding direction of the drawer, so that the drawer forms two accommodation spaces.

[0015] The fingerprint acquisition device includes a first fingerprint acquisition element and a plurality of second fingerprint acquisition elements. The second fingerprint acquisition elements are arranged around the first fingerprint acquisition element and are inclined to the first fingerprint acquisition element. The first fingerprint acquisition element is used to acquire the fingerprint of the finger pulp and define it as the first fingerprint information, and the second fingerprint acquisition element is used to acquire the fingerprint of the finger edge and define it as the second fingerprint information.

[0016] The comparison module is preset with standard fingerprint information. The comparison module obtains the first fingerprint information and the second fingerprint information and compares them with the standard fingerprint information respectively. If the matching degree between the first fingerprint information and the standard fingerprint information is lower than a preset first matching degree, a locking signal is generated to lock both the first locking tongue and the second locking tongue. If the matching degree between the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree between the second fingerprint information and the standard fingerprint information is not lower than the preset second matching degree, an all-unlocking signal is generated to unlock both the first locking tongue and the second locking tongue. If the matching degree between the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree between the second fingerprint information and the standard fingerprint information is lower than the preset second matching degree, a partial-unlocking signal is generated to unlock either the first locking tongue or the second locking tongue to open one of the accommodation spaces;

[0017] The control system is configured with a fingerprint acquisition strategy. The fingerprint acquisition strategy includes that the first fingerprint acquisition element acquires a fingerprint image of the finger pulp to be defined as finger pulp image information, and at the same time the second fingerprint acquisition element acquires a fingerprint image of the edge to be defined as edge image information. Multiple acquisitions are performed to obtain multiple groups of finger pulp image information and edge image information. The finger pulp image information and the edge image information are respectively divided into multiple image units in sequence, and the image units are correspondingly compared with each other. The overlapping feature parts are identified and the image units are rearranged and spliced to obtain complete fingerprint image information, and the fingerprint image information is the standard fingerprint information.

[0018] In the present invention, preferably, the comparison module is configured with an edge fingerprint comparison strategy. The edge fingerprint comparison strategy is specifically as follows: obtain the second fingerprint information and compare it with the fingerprint image information. When the matching degree between the first fingerprint information and the fingerprint image information is not lower than the preset first matching degree, select a first comparison area image in the fingerprint image information so that the first comparison area image and the first fingerprint information overlap each other, and divide a second comparison area image according to the positional relationship between the first fingerprint acquisition element and the second fingerprint acquisition element. The second comparison area corresponds to the second fingerprint acquisition element one by one, and the second comparison area image is used as the standard fingerprint information when the second image information is compared.

[0019] In the present invention, preferably, an intelligent lock with two-stage control is provided. The fingerprint acquisition device includes a spacing adjustment driving member, and the spacing adjustment driving member changes the acquisition range of the second fingerprint acquisition element by adjusting the spacing between the second fingerprint acquisition element and the first fingerprint acquisition element;

[0020] The control system is configured with a fingerprint feature extraction module. The fingerprint extraction module extracts feature points in the fingerprint image information. The feature points reflect break points, intersection points or bifurcation points in the fingerprint image information. The feature points are used as standard fingerprint information. The fingerprint image information is segmented to form a number of image units. The image units are arranged along the arrangement direction of the second fingerprint acquisition element. The number distribution of feature points in each image unit is statistically analyzed and a distribution signal is generated.

[0021] The control system is configured with a spacing adjustment strategy. Specifically, the distribution signal is received to obtain a standard range, so that when the spacing range of the second fingerprint acquisition element is within the standard range, the number of feature points that can be collected by the first fingerprint acquisition element and the second fingerprint acquisition element is within a preset number range. After both lock tongues are opened, a value within the standard range is randomly generated as the detection spacing value to the spacing adjustment driving member. The spacing adjustment driving member drives the two fingerprint acquisition elements to move to a position where the spacing size is the detection spacing value.

[0022] Advantages of the present invention:

[0023] 1. In the present invention, through the setting of the first lock tongue and the second lock tongue, two accommodation spaces are formed in the drawer. The unlocking difficulties of the first lock tongue and the second lock tongue are different. The first lock tongue can be unlocked only when the first fingerprint information can be matched. If someone uses a copied fingerprint of the finger pulp to unlock, one accommodation space can be opened. At this time, the unlocked state can distract the attention of the unlocker and avoid the situation of violently damaging the lock, with higher safety performance. At the same time, it is very difficult to completely retain the fingerprint on the edge of the finger in daily use, which also increases the difficulty of complete fingerprint copying and improves the safety performance of the lock.

[0024] 2. By adjusting the spacing between the first fingerprint acquisition element and the second fingerprint acquisition element in the present invention, the acquisition position of the corresponding fingerprint on the edge of the finger changes accordingly each time of unlocking. It is equivalent to that the verification position of the fingerprint on the edge of the finger will change randomly after each successful unlocking, avoiding the occurrence of false unlocking caused by fingerprint residue after the previous unlocking and improving the accuracy of the fingerprint lock. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the intelligent lock in the present invention;

[0026] Figure 2 is the external structural schematic diagram of the first housing in the present invention;

[0027] Figure 3 is the cross-sectional structural schematic diagram of the intelligent lock in the present invention.

[0028] Reference Signs:

[0029] 1. First locking tongue; 101. First housing; 102. Rotating drive member; 103. First transmission rod; 104. First slider; 105. Locking guide surface; 2. Second locking tongue; 201. Second housing; 203. Second transmission rod; 204. Second slider; 3. Fingerprint acquisition device; 31. First acquisition element; 32. Second acquisition element; 4. First synchronization rod; 401. Synchronization shaft sleeve; 41. Second synchronization rod; 5. Limit lock groove. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] Please also refer to Figures 1 to 3, this embodiment provides an intelligent lock with two-stage control, including a first locking tongue 1, a second locking tongue 2, a fingerprint acquisition device 3 and a comparison module. The first locking tongue 1 and the second locking tongue 2 are distributed along the sliding direction of the drawer, so that the drawer forms two accommodating spaces. Specifically, in use, a vertically arranged partition is provided in the drawer, where the second locking tongue 2 is installed on the partition, and the first locking tongue 1 is installed on the side plate on the opening side of the drawer. The unlocking difficulties of the two accommodating spaces are different, that is, the unlocking difficulties of the first locking tongue 1 and the second locking tongue 2 are different. The first locking tongue 1 can be unlocked only when the first fingerprint information can be matched. If someone uses a copied fingerprint of the finger pulp to unlock, one accommodating space can be opened. At this time, the unlocked state can distract the attention of the unlocker and avoid the situation of violent damage to the lock, with higher safety performance. At the same time, due to the curvature of the finger itself, it is difficult to completely retain the fingerprint on the edge of the finger during daily touch, which also increases the difficulty of complete fingerprint copying and improves the safety performance of the lock.

[0034] The fingerprint acquisition device 3 includes a first fingerprint acquisition element and a plurality of second fingerprint acquisition elements. The second fingerprint acquisition elements are arranged around the first fingerprint acquisition element and are inclined to the first fingerprint acquisition element. The first fingerprint acquisition element is used to acquire the fingerprint of the finger pulp to be defined as the first fingerprint information, and the second fingerprint acquisition elements are used to acquire the fingerprint on the edge of the finger to be defined as the second fingerprint information.

[0035] The comparison module presets standard fingerprint information. The comparison module obtains the first fingerprint information and the second fingerprint information and compares them with the standard fingerprint information respectively. If the matching degree of the first fingerprint information and the standard fingerprint information is lower than the preset first matching degree, a locking signal is generated to lock both the first locking tongue 1 and the second locking tongue 2. If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is not lower than the preset second matching degree, an all-unlocking signal is generated to unlock both the first locking tongue 1 and the second locking tongue. If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is lower than the preset second matching degree, a partial-unlocking signal is generated to unlock either the first locking tongue 1 or the second locking tongue 2 to open one of the accommodating spaces.

[0036] The intelligent lock includes a first housing 101, and a first driving assembly is arranged inside the first housing 101. The first driving assembly includes a rotary driving member 102, a first transmission rod 103, and a first slider 104. The first transmission rod 103 is rotatably connected to the first housing 101. The rotary driving member 102 is used to drive the first transmission rod 103 to rotate. The first slider 104 is threadedly connected to the first transmission rod 103. The first slider 104 is fixedly connected to a first locking tongue 1. The first locking tongue 1 is slidably connected to the first housing 101. When the first transmission rod 103 rotates, the first transmission rod 103 drives the first slider 104 to slide along the axis direction of the first transmission rod 103 so that the first locking tongue 1 extends out of or retracts into the first housing 101.

[0037] The intelligent lock includes a second housing 201, and a second driving assembly is arranged inside the second housing 201. The second driving assembly includes a second transmission rod 203 and a second slider 204. The second transmission rod 203 is rotatably connected to the second housing 201. The rotary driving member 102 is used to drive the second transmission rod 203 to rotate. The second slider 204 is threadedly connected to the second transmission rod 203. The second slider 204 is fixedly connected to a second locking tongue 2. The second locking tongue 2 is slidably connected to the second housing 201. When the second transmission rod 203 rotates, the second transmission rod 203 drives the second slider 204 to slide along the axis direction of the second transmission rod 203 so that the second locking tongue 2 extends out of or retracts into the second housing 201.

[0038] The intelligent lock includes a transmission switching assembly. The transmission switching assembly includes a first synchronizing rod 4, a second synchronizing rod 41, a synchronizing shaft sleeve 401, and a linear driving member. Among them, the first synchronizing rod 4 and the first transmission rod, and the second synchronizing rod 41 and the second transmission rod are both driven by bevel gears, and the first synchronizing rod 4 and the second synchronizing rod 41 are coaxially arranged. The installation positions of the first synchronizing rod 4 and the second synchronizing rod 41 are arranged inside the bottom plate of the drawer. The synchronizing shaft sleeve 401 is slidably installed on the first synchronizing rod 4. An insertion portion is formed at the end of the synchronizing shaft sleeve 401 close to the second synchronizing rod 41. The linear driving member is used to drive the synchronizing shaft sleeve 401 to slide along the axis direction of the first synchronizing rod 4 so that the insertion portion engages with or disengages from the second synchronizing rod 41. Considering that the installation and disassembly requirements for the second locking tongue 2 are higher than those for the first locking tongue 1, the actual installation and disassembly difficulty of the second locking tongue 2 is higher than that of the first locking tongue 1. For the convenience of maintenance, the driving sources of the first locking tongue 1 and the second locking tongue 2 are set to be the same, which is convenient for maintenance. And the setting of the transmission switching assembly facilitates the synchronous movement or mutual separation between the first locking tongue 1 and the second locking tongue 2.

[0039] For specific reference, see Figure 3, the intelligent lock includes a limit lock groove 5. The number of limit lock grooves 5 is set to one, which can meet the functions of this application, that is, the first lock tongue 1 and the second lock tongue 2 share one limit lock groove 5. Locking guiding surfaces 105 are formed on both the first lock tongue 1 and the second lock tongue 2, and reset elastic members (not shown in the figure) are provided on both the first lock tongue 1 and the second lock tongue 2. When the locking guiding surface 105 abuts against the limit lock groove 5, the reset elastic member is compressed by extrusion, and the first lock tongue 1 or the second lock tongue 2 is reset and falls into the limit lock groove 5.

[0040] The fingerprint acquisition device 3 includes a spacing adjustment driving member, and the spacing adjustment driving member changes the acquisition range of the second fingerprint acquisition element by adjusting the spacing between the second fingerprint acquisition element and the first fingerprint acquisition element.

[0041] A control system with two-stage control provides a control lock with two-stage control as described above. The control system is configured with a fingerprint acquisition strategy. The fingerprint acquisition strategy includes that the first fingerprint acquisition element acquires a fingerprint image of the finger pulp and defines it as finger pulp image information, and at the same time, the second fingerprint acquisition element acquires an edge fingerprint image and defines it as edge image information. Multiple acquisitions are performed to obtain multiple groups of finger pulp image information and edge image information. The finger pulp image information and the edge image information are respectively divided into multiple image units in sequence, and the image units are correspondingly compared with each other. The overlapping feature parts are identified and the image units are rearranged and spliced to obtain complete fingerprint image information, and the fingerprint image information is the standard fingerprint information. The fingerprint acquisition strategy is set to use the first fingerprint acquisition element and the second fingerprint acquisition element to perform multiple acquisitions during fingerprint entry to obtain complete fingerprint image information.

[0042] The comparison module is configured with an edge fingerprint comparison strategy. Specifically, the second fingerprint information is obtained and compared with the fingerprint image information. When the matching degree between the first fingerprint information and the fingerprint image information is not lower than a preset first matching degree, a first comparison area image is selected in the fingerprint image information so that the first comparison area image and the first fingerprint information overlap each other, and a second comparison area image is divided according to the positional relationship between the first fingerprint acquisition element and the second fingerprint acquisition element. The second comparison area corresponds to the second fingerprint acquisition element one by one, and the second comparison area image is used as the standard fingerprint information when the second image information is compared. This setting takes into account that when verifying the edge fingerprint of the finger, the relative position between the edge fingerprint and the finger pulp fingerprint needs to be clarified. Therefore, the second comparison area image in the corresponding position range is directly selected in the fingerprint image information, the processing process is more convenient, and the image comparison range is reduced, making the accuracy of image comparison higher and the response speed faster.

[0043] The control system is configured with a fingerprint feature extraction module. The fingerprint extraction module extracts feature points from the fingerprint image information. The feature points reflect the break points, intersection points or bifurcation points in the fingerprint image information. The feature points are used as standard fingerprint information. The fingerprint image information is segmented into several image units. The image units are arranged along the arrangement direction of the second fingerprint acquisition element. The number distribution of the feature points in each image unit is counted and a distribution signal is generated.

[0044] The control system is configured with a spacing adjustment strategy. Specifically, the spacing adjustment strategy is to receive the distribution signal to obtain a standard range, so that when the spacing range of the second fingerprint acquisition element is within the standard range, the number of feature points that can be collected by the first fingerprint acquisition element and the second fingerprint acquisition element is within a preset number range. After both locking tongues are opened, a value within the standard range is randomly generated as the detection spacing value to the spacing adjustment driving member. The spacing adjustment driving member drives the two fingerprint acquisition elements to move to a position where the spacing size is the detection spacing value. By adjusting the spacing between the first fingerprint acquisition element and the second fingerprint acquisition element, the acquisition position of the fingerprint at the edge of the corresponding finger changes accordingly each time the lock is unlocked. That is, after each successful unlocking, the verification position of the fingerprint at the edge of the finger will change randomly, avoiding the occurrence of false unlocking caused by the remaining fingerprint after the previous unlocking and improving the accuracy of the fingerprint lock.

[0045] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An intelligent lock with two-stage control, Characterized in that: It includes a first locking tongue (1), a second locking tongue (2), a fingerprint acquisition device (3) and a comparison module. The first locking tongue (1) and the second locking tongue (2) are distributed along the sliding direction of the drawer, so that the drawer forms two accommodation spaces. The fingerprint acquisition device (3) includes a first fingerprint acquisition element and a plurality of second fingerprint acquisition elements. The second fingerprint acquisition elements are arranged around the first fingerprint acquisition element and are inclined to the first fingerprint acquisition element. The first fingerprint acquisition element is used to acquire the fingerprint of the finger pulp to define the first fingerprint information, and the second fingerprint acquisition elements are used to acquire the fingerprint of the finger edge to define the second fingerprint information. The comparison module presets standard fingerprint information. The comparison module acquires the first fingerprint information and the second fingerprint information and compares them with the standard fingerprint information respectively. If the matching degree of the first fingerprint information and the standard fingerprint information is lower than the preset first matching degree, a locking signal is generated to lock both the first locking tongue (1) and the second locking tongue (2). If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is not lower than the preset second matching degree, an all-unlock signal is generated to unlock both the first locking tongue (1) and the second locking tongue. If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is lower than the preset second matching degree, a partial-unlock signal is generated to unlock either the first locking tongue (1) or the second locking tongue (2) to open one of the accommodation spaces.

2. The intelligent lock with two-stage control according to claim 1, Characterized in that: The intelligent lock includes a first housing (101). A first driving assembly is arranged in the first housing (101). The first driving assembly includes a rotary driving member (102), a first transmission rod (103) and a first slider (104). The first transmission rod (103) is rotatably connected to the first housing (101). The rotary driving member (102) is used to drive the first transmission rod (103) to rotate. The first slider (104) is threadedly connected to the first transmission rod (103). The first slider (104) is fixedly connected to the first locking tongue (1). The first locking tongue (1) is slidably connected to the first housing (101). When the first transmission rod (103) rotates, the first transmission rod (103) drives the first slider (104) to slide along the axis direction of the first transmission rod (103) so that the first locking tongue (1) extends out of or retracts into the first housing (101).

3. The intelligent lock with two-stage control according to claim 2, Characterized in that: The intelligent lock includes a second housing (201), a second driving assembly is arranged inside the second housing (201), the second driving assembly includes a second transmission rod (203) and a second slider (204), the second transmission rod (203) is rotatably connected to the second housing (201), the rotation driving member (102) is used to drive the second transmission rod (203) to rotate, the second slider (204) is threadedly connected to the second transmission rod (203), the second slider (204) is fixedly connected to the second locking tongue (2), the second locking tongue (2) is slidably connected to the second housing (201), when the second transmission rod (203) rotates, the second transmission rod (203) drives the second slider (204) to slide along the axis direction of the second transmission rod (203) so that the second locking tongue (2) extends out of or retracts into the second housing (201).

4. An intelligent lock with two-stage control according to claim 3, wherein: the intelligent lock includes a transmission switching assembly, the transmission switching assembly includes a first synchronizing rod (4), a second synchronizing rod (41), a synchronizing shaft sleeve (401) and a linear driving member, wherein between the first synchronizing rod (4) and the first transmission rod, and between the second synchronizing rod (41) and the second transmission rod, are both driven by bevel gears, and the first synchronizing rod (4) and the second synchronizing rod (41) are coaxially arranged, the synchronizing shaft sleeve (401) is slidably mounted on the first synchronizing rod (4), an insertion portion is formed at the end of the synchronizing shaft sleeve (401) close to the second synchronizing rod (41), and the linear driving member is used to drive the synchronizing shaft sleeve (401) to slide along the axis direction of the first synchronizing rod (4) so that the insertion portion engages with or disengages from the second synchronizing rod (41).

5. An intelligent lock with two-stage control according to claim 3, wherein: the intelligent lock includes a limit lock groove (5), locking guiding surfaces (105) are formed on both the first locking tongue (1) and the second locking tongue (2), reset elastic members are arranged on both the first locking tongue (1) and the second locking tongue (2), when the locking guiding surface (105) abuts against the limit lock groove (5), the reset elastic member is compressed by extrusion and makes the first locking tongue (1) or the second locking tongue (2) reset and fall into the limit lock groove (5).

6. An intelligent lock with two-stage control according to claim 1, wherein: the fingerprint acquisition device (3) includes a spacing adjustment driving member, and the spacing adjustment driving member changes the acquisition range of the second fingerprint acquisition element by adjusting the spacing between the second fingerprint acquisition element and the first fingerprint acquisition element.

7. A two-stage control system, wherein: there is provided a control lock with two-stage control, including a first locking tongue (1), a second locking tongue (2), a fingerprint acquisition device (3) and a comparison module, the first locking tongue (1) and the second locking tongue (2) are distributed along the sliding direction of the drawer so that the drawer forms two accommodating spaces, The fingerprint acquisition device (3) includes a first fingerprint acquisition element and a plurality of second fingerprint acquisition elements. The second fingerprint acquisition elements are arranged around the first fingerprint acquisition element and are inclined with respect to the first fingerprint acquisition element. The first fingerprint acquisition element is used to acquire the fingerprint of the finger pulp and define it as the first fingerprint information, and the second fingerprint acquisition element is used to acquire the fingerprint of the finger edge and define it as the second fingerprint information. The comparison module presets standard fingerprint information. The comparison module obtains the first fingerprint information and the second fingerprint information and compares them with the standard fingerprint information respectively. If the matching degree of the first fingerprint information and the standard fingerprint information is lower than a preset first matching degree, a locking signal is generated to lock both the first lock tongue (1) and the second lock tongue (2). If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is not lower than the preset second matching degree, an all-unlock signal is generated to unlock both the first lock tongue (1) and the second lock tongue (2). If the matching degree of the first fingerprint information and the standard fingerprint information is not lower than the preset first matching degree and the matching degree of the second fingerprint information and the standard fingerprint information is lower than the preset second matching degree, a partial-unlock signal is generated to unlock either the first lock tongue (1) or the second lock tongue (2) to open one of the accommodation spaces. The control system is configured with a fingerprint acquisition strategy. The fingerprint acquisition strategy includes that the first fingerprint acquisition element acquires the fingerprint image of the finger pulp and defines it as the finger pulp image information, and at the same time, the second fingerprint acquisition element acquires the edge fingerprint image and defines it as the edge image information. Multiple acquisitions are performed to obtain multiple groups of finger pulp image information and edge image information. The finger pulp image information and the edge image information are respectively divided into multiple image units in sequence, and the image units are correspondingly compared with each other. The overlapping feature parts are identified and the image units are rearranged and spliced to obtain the complete fingerprint image information. The fingerprint image information is the standard fingerprint information.

8. A control system with two-stage control according to claim 7, characterized in that: The comparison module is configured with an edge fingerprint comparison strategy. The edge fingerprint comparison strategy is specifically as follows: obtain the second fingerprint information and compare it with the fingerprint image information. When the matching degree of the first fingerprint information and the fingerprint image information is not lower than the preset first matching degree, select a first comparison area image in the fingerprint image information so that the first comparison area image and the first fingerprint information overlap each other, and divide the second comparison area image according to the positional relationship between the first fingerprint acquisition element and the second fingerprint acquisition element. The second comparison area corresponds to the second fingerprint acquisition element one by one, and the second comparison area image is used as the standard fingerprint information when the second image information is compared.

9. A control system with two-stage control according to claim 7, characterized in that: Provided is an intelligent lock with two-stage control. The fingerprint acquisition device (3) includes a spacing adjustment driving member, and the spacing adjustment driving member changes the acquisition range of the second fingerprint acquisition element by adjusting the spacing between the second fingerprint acquisition element and the first fingerprint acquisition element; The control system is configured with a fingerprint feature extraction module. The fingerprint extraction module extracts feature points in the fingerprint image information. The feature points reflect break points, intersection points or bifurcation points in the fingerprint image information, and the feature points are used as standard fingerprint information. The fingerprint image information is segmented into a number of image units, and the image units are arranged along the arrangement direction of the second fingerprint acquisition element. The number distribution of feature points in each image unit is counted and a distribution signal is generated. The control system is configured with a spacing adjustment strategy. Specifically, the spacing adjustment strategy is to receive the distribution signal to obtain a standard range, so that when the spacing range of the second fingerprint acquisition element is within the standard range, the number of feature points that can be acquired by the first fingerprint acquisition element and the second fingerprint acquisition element is within a preset number range. After both lock tongues are opened, a value within the standard range is randomly generated as the detection spacing value to the spacing adjustment driving member, and the spacing adjustment driving member drives the two fingerprint acquisition elements to move to a position where the spacing size is the detection spacing value.

Images