CN217760486U - Device for detecting opening and closing states of anti-theft door - Google Patents

Abstract

The utility model provides a burglary-resisting door on-off state detection device, including electronic lock, be used for setting up the NFC chip at the door limit position of the door leaf of burglary-resisting door and be used for setting up the NFC card on the door frame of burglary-resisting door, the NFC chip is just to arranging with the NFC card, the NFC chip constitutes signal connection with electronic lock. In the above-mentioned scheme, judge that the door leaf has closed when the NFC chip detects the NFC card, otherwise judge that the door leaf has not closed, the NFC card itself is an encryption card, only the NFC chip reads the encryption information that corresponds and just can judge that the door leaf has closed, this encryption information only exists on the NFC card, so just can not cause the erroneous judgement because of near debris of door leaf, no matter be the NFC card simultaneously or the NFC chip all is small and exquisite lamellar structure, it can direct mount in crack position department, and need not destroy door body structure.

Description

Device for detecting opening and closing states of anti-theft door

Technical Field

The utility model relates to an intelligence lock field of burglary-resisting door especially relates to a burglary-resisting door on-off state detection device.

Background

With the technological progress and the development of the internet of things technology, intelligent products are more and more favored by consumers. Smart homes have become a new consumption trend, and smart door locks are a main part of smart homes and show a continuously increasing trend in recent years. As a first guarantee for the safety of household residents, the intelligent door lock also considers the stability and the safety while pursuing rapidness and convenience. At present, after the fingerprints, passwords and cards are successfully verified, the lock tongue automatically contracts, and a user can directly push a door to enter a house without rotating a door handle. When the door leaves, the door is only required to be closed; after the sensor detects that the door is closed, the motor is driven, and the lock tongue automatically extends out to complete automatic lock falling.

Chinese patent CN106781318a discloses an automatic alarm system for overtime when door is opened, which has the scheme: the electronic door lock comprises a door body, a door frame and an electronic door lock, wherein a proximity switch is installed on the opening side of the door body, and a metal sheet is installed on the door frame at a position corresponding to the proximity switch. The anti-theft door is detected to be opened or not through the proximity switch. However, the proximity switch needs physical contact, is not favorable for installation, and is interfered by sundries to cause misjudgment. In addition, the prior art also has a Hall sensor type detection device, but the detection distance is insufficient, the precision is not enough, and the Hall sensor type detection device is easy to be interfered by the environment, so that the lock can not be normally locked. Meanwhile, the existing door-opening overtime automatic alarm system can form the false image that the anti-theft door is closed through a conventional mode 'deceiving' system, for example, a barrier can be used for pressing the proximity switch to prevent a buzzer from alarming. This presents a certain risk of theft for the homeowner.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a theftproof door switch state detection device that jam-proof nature is strong.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the NFC chip is arranged opposite to the NFC card, and the NFC chip and the electronic door lock form signal connection.

In the above-mentioned scheme, judge that the door leaf has closed when the NFC chip detects the NFC card, otherwise judge that the door leaf has not closed, the NFC card itself is an encryption card, only the NFC chip reads the encryption information that corresponds and just can judge that the door leaf has closed, this encryption information only exists on the NFC card, so just can not cause the erroneous judgement because of near debris of door leaf, no matter be the NFC card simultaneously or the NFC chip all is small and exquisite lamellar structure, it can direct mount in crack position department, and need not destroy door body structure.

Preferably, the NFC chip is disposed at the door opening/closing end.

Preferably, the electronic door lock comprises a lock tongue plate arranged at the opening and closing end of the door leaf, and the NFC chip is arranged on the lock tongue plate and is powered by the electronic door lock.

Preferably, the door further comprises an alarm unit which is in signal connection with the NFC chip, the alarm unit comprises a loudspeaker arranged on the outer board surface and/or the inner board surface of the door leaf, and the loudspeaker and the electronic door lock form electric connection for power supply.

Preferably, the alarm unit comprises an LED lamp set arranged at the opening and closing end of the door leaf, and the LED lamp set and the electronic door lock form electric connection for power supply.

Preferably, the door further comprises a driving motor for driving the door leaf to close, the driving motor is arranged on the wall above the door frame, and the driving motor and the household circuit form an electric connection for supplying power.

Preferably, a driving shaft core of the driving motor is parallel to a rotating shaft core of the door leaf and is arranged at intervals, the driving shaft and the rotating shaft are respectively and coaxially provided with a transmission gear, the two transmission gears are meshed with each other, and the transmission ratio is greater than 1.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure at the inner side viewing angle of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of the outer side view angle of the present invention;

fig. 3 is a NFC sensor initialization flow diagram;

fig. 4 is a NFC sensor application flow diagram;

description of reference numerals: 1. a door leaf; 2. a door frame; 3. a rotating shaft; 10. an NFC chip; 20. an NFC card; 30. an electronic door lock; 31. a tongue locking plate; 40. a speaker; 50. a lamp group; 60. a drive motor; 70. a transmission gear.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that the terms "bottom", "outside", "front-back", "up-down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the state of 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 in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; 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.

The device for detecting the opening and closing states of the security door comprises an electronic door lock 30, an NFC chip 10 and an NFC card 20, wherein the NFC chip 10 is used for being arranged at the door edge position of a door leaf 1 of the security door, the NFC card 20 is used for being arranged on a door frame 2 of the security door, the NFC chip 10 and the NFC card 20 are arranged in a right-to-right mode, and the NFC chip 10 and the electronic door lock 30 form signal connection.

In the above scheme, the initialization is required before the position detection, so as to complete the binding of the NFC card 20; after binding, interference of other blank cards on position detection can be prevented. As shown in fig. 2, the initialization process of the NFC sensor includes the following specific steps:

after the lock body is installed, the NFC card 20 for position detection is fixed, and then the door is closed;

initializing a lock plate and binding the NFC card 20;

waiting for initialization to complete.

The NFC sensor application flow is shown in fig. 3, and includes the following steps:

after a user normally registers an administrator and the user and passes the verification of fingerprints, passwords and cards, the lock plate master control controls the motor to rotate to drive the lock tongue to retract;

at the moment, the user can directly push the door to enter;

if the NFC card 20 of location is all read to n times in succession, then think that the user does not push away the door, the jam plate master control can control the motor gyration, and the automatic lock that falls avoids special circumstances, some potential safety hazards that the user had not opened the door after verifying, closes position detection module after the lock falls, and the jam plate dormancy. Wherein n can be set by software;

after the user is authenticated, the user directly pushes the door to enter, at the moment, the position detection module loses the information of the positioned NFC card 20, and the locking plate can acquire the information that the door is opened;

in order to deal with some normally open scenes, the lock plate supports a normally open mode, namely, after the door is opened, the lock tongue keeps a contraction state all the time, and meanwhile, the alarm reminding is not carried out;

if the normally open mode is detected to be opened, the position detection module is closed, the locking plate enters the dormancy state, and the next use is waited for;

and when the normally open mode is detected to be closed, resetting the position detection count and detecting the opening and closing states of the door again.

Some users may have some potential safety hazards after opening the door because they forget to close the door or virtually hide the door.

If the user closes the door within the specified detection times, the position detection module can read and position the NFC card 20 information at the moment, the motor starts to rotate, the spring bolt extends out, the automatic lock falling is completed, the position detection module is closed, and the locking plate is dormant;

if the positioning NFC card 20 is not detected for m times continuously, the door is judged not to be closed for a long time, and the voice starts to give an alarm to prompt to wait for the user to close the door.

And if the normally open mode is detected to be closed, resetting position detection counting, re-detecting the opening and closing state of the door, and if the user still does not close the door after a plurality of times, continuously alarming by the locking plate and releasing the door after verification by an administrator.

Judge the door leaf when NFC chip 10 detects NFC card 20 and has closed, otherwise judge that the door leaf does not close, NFC card 20 itself is an encryption card, only NFC chip 10 reads corresponding encryption information and just can judge that door leaf 1 has closed, this encryption information only exists on NFC card 20, so just can not cause the erroneous judgement because of near debris of door leaf, no matter simultaneously NFC card 20 or NFC chip 10 all are small-size lamellar structure, it can the direct mount in crack position department, and need not destroy a body structure.

The utility model discloses an use the NFC sensor to realize that short distance fixed point position detects to the on off state that realizes intelligent lock detects. The defects of inconvenience in installation, low detection precision, insufficient detection distance, easiness in interference of external environment and the like of the conventional scheme are overcome. On the premise of ensuring the intelligence and convenience of the product, the safety and stability of the product are improved simultaneously.

Preferably, the NFC chip 10 is disposed at the opening/closing end of the door 1. The movable range of the opening and closing end of the door leaf 1 is the largest, when small-angle deviation occurs to the door leaf 1, the opening and closing end of the door leaf 1 can also generate large deviation, the detection precision of the NFC chip 10 is convenient to promote, and false alarm is avoided. Wherein the opening and closing end of the door leaf 1 refers to a position away from the hinged end. Meanwhile, the NFC chip 10 may also be disposed at the upper end or the lower end of the door leaf 1, and the NFC chip 10 is located at a position far away from the hinged end when located at the upper end or the lower end.

Preferably, the electronic door lock 30 includes a tongue plate 31 disposed at the opening and closing end of the door leaf 1, and the NFC chip 10 is disposed on the tongue plate 31 and powered by the electronic door lock 30. The electronic door lock 30 has a power source itself, and the NFC chip 10 needs to be powered, so that the NFC chip 10 is disposed on the lock tongue plate 31 to facilitate power supply.

Preferably, the door further comprises an alarm unit in signal connection with the NFC chip 10, the alarm unit comprises a speaker 40 disposed on the outer panel surface and/or the inner panel surface of the door leaf 1, and the speaker 40 and the electronic door lock 30 are electrically connected to supply power. When the NFC chip 10 detects that the door is not closed, the speaker 40 emits an alarm sound.

Preferably, the alarm unit includes an LED lamp set 50 disposed at the opening/closing end of the door 1, and the speaker 40 and the electronic door lock 30 are electrically connected to supply power. When the NFC chip 10 detects that the door is not closed, the LED lamp set 50 performs a blinking alarm.

Preferably, the door opening and closing device further comprises a driving motor 60 for driving the door leaf 1 to close, wherein the driving motor 60 is arranged on the wall above the door frame 2, and the driving motor 60 is electrically connected with a household circuit for supplying power. The drive motor 60 may be located either inside or outside the wall for ease of access. When the NFC chip 10 detects that the door is not closed, the driving motor 60 may close the door 1 by itself.

Preferably, the driving shaft core of the driving motor 60 is parallel to the shaft core of the rotating shaft 3 of the door leaf 1 and arranged at an interval, the driving shaft and the rotating shaft 3 are respectively and coaxially provided with a transmission gear 70, and the two transmission gears 70 are engaged with each other and have a transmission ratio greater than 1. The rotating shaft 3 of the door leaf 1 extends out of the upper end of the door frame, the transmission gear 70 is coaxially arranged on the rotating shaft 3, the installation space of the transmission gear 70 can be reserved in a local hollow space of the wall at the upper end of the door frame 2, and the transmission gear 70 can also be embedded in the transmission gear 70 and coaxially connected with the rotating shaft 3. The arrangement of the transmission ratio can avoid that the driving motor 60 cannot drive the door leaf 1 when the torque is too small, and can also avoid hurting people when the door leaf is closed too fast.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present disclosure.

Claims (7)

1. The utility model provides a burglary-resisting door on-off state detection device which characterized in that: the NFC anti-theft door comprises an electronic door lock (30), an NFC chip (10) arranged at the door edge position of a door leaf (1) of the anti-theft door and an NFC card (20) arranged on a door frame (2) of the anti-theft door, wherein the NFC chip (10) and the NFC card (20) are arranged just right, and the NFC chip (10) and the electronic door lock (30) form signal connection.

2. The antitheft door opening and closing state detecting device according to claim 1, characterized in that: the NFC chip (10) is arranged at the opening and closing end of the door leaf (1).

3. The antitheft door opening and closing state detecting device according to claim 2, characterized in that: the electronic door lock (30) comprises a lock tongue plate (31) arranged at the opening and closing end of the door leaf (1), and the NFC chip (10) is arranged on the lock tongue plate (31) and is powered by the electronic door lock (30).

4. The antitheft door opening and closing state detecting device according to claim 1, characterized in that: the door leaf is characterized by further comprising an alarm unit which is in signal connection with the NFC chip (10), wherein the alarm unit comprises a loudspeaker (40) arranged on the outer side board surface and/or the inner side board surface of the door leaf (1), and the loudspeaker (40) and the electronic door lock (30) form electric connection for power supply.

5. The antitheft door switch state detecting device according to claim 4, characterized in that: the alarm unit comprises an LED lamp set (50) arranged at the opening and closing end of the door leaf (1), and the LED lamp set (50) and the electronic door lock (30) form electric connection for power supply.

6. The antitheft door switch state detection device according to claim 1, 2, 3, 4 or 5, wherein: the door further comprises a driving motor (60) used for driving the door leaf (1) to close, the driving motor (60) is arranged on the wall above the door frame (2), and the driving motor (60) and a household circuit form an electric connection for supplying power.

7. The antitheft door opening and closing state detecting device according to claim 6, wherein: the driving shaft core of the driving motor (60) is parallel to the shaft core of the rotating shaft (3) of the door leaf (1) and arranged at intervals, the driving shaft and the rotating shaft (3) are respectively and coaxially provided with a transmission gear (70), the two transmission gears (70) are meshed with each other, and the transmission ratio is greater than 1.

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