CN110792324A

CN110792324A - Intelligent door lock with automatic monitoring function

Info

Publication number: CN110792324A
Application number: CN201910953149.4A
Authority: CN
Inventors: 赵金燕
Original assignee: Ningbo Haishu Guangyun Electromechanical Engineering Co Ltd
Current assignee: Beijing Tiebao Zhongtai Security Service Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-02-14
Anticipated expiration: 2039-10-09
Also published as: CN110792324B

Abstract

The invention discloses an intelligent door lock with an automatic monitoring function, which comprises an electronic lock arranged on a door plate, wherein the electronic lock comprises an electronic unlocking mode and a mechanical unlocking mode; the electronic lock is provided with a signal processing module and an electronic lock module; the outer side columns of the door frame are respectively provided with a groove, a row of monitoring heads are vertically arranged in the grooves, the monitoring heads shoot image information of the outer side of the door plate, including videos and static photos, and the shot information is transmitted to the signal processing module for processing; the top of the inside and outside of the door frame is provided with a luminous part which illuminates the lower part of the door frame to provide illumination, so that the monitoring head can shoot clear pictures conveniently, and people can observe the ground clearly. The invention can record the information of the unlocking person, thereby improving the safety, distinguishing which person is in front of the door, judging whether the unlocking can be freely carried out or not, and having the characteristic of high safety performance.

Description

Intelligent door lock with automatic monitoring function

Technical Field

The invention relates to an intelligent door lock with an automatic monitoring function.

Background

Door locks are devices used, as the name implies, to lock a door to prevent others from opening the door. The door locks are classified into a plurality of categories, the requirements on the door locks are different in each occasion, and the anti-theft door lock is generally used in ordinary families, and is high in safety and low in price.

The electronic door lock appears along with the development of electronic technology, and is incomparable with mechanical locks in the aspects of use convenience, illegal unlocking prevention, intelligent management and the like, so that the electronic door lock is widely applied to industries with higher safety requirements.

The intelligent door lock is an improved lock which is different from the traditional mechanical lock, is more intelligent and simpler in the aspects of user safety, identification and manageability, and is a composite lock with safety, convenience and advanced technology.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the intelligent door lock with the automatic monitoring function, which can record the information of unlocking people, thereby improving the safety, counting the number of people entering and exiting the door, distinguishing which people are in front of the door, and judging whether the door can be freely unlocked or not; the unlocking device has the characteristics of convenience in unlocking and high safety performance.

In order to solve the technical problem, the invention is solved by the following technical scheme: an intelligent door lock with an automatic monitoring function comprises an electronic lock arranged on a door plate, wherein the electronic lock comprises an electronic unlocking mode and a mechanical unlocking mode, and a hinge is arranged on one side of the door plate so as to be rotatably arranged on a door frame; the electronic lock is provided with a signal processing module and an electronic lock module; the outer side columns of the door frame are respectively provided with a groove, a row of monitoring heads are vertically arranged in the grooves, and privacy glass covers the grooves to prevent the grooves from being observed by outside people; the monitoring head shoots image information on the outer side of the door panel, including videos and static pictures, and transmits the shot information to the signal processing module for processing; the top parts of the inner side and the outer side of the door frame are provided with light emitting parts which illuminate the lower part of the door frame to provide illumination, so that the monitoring head can conveniently shoot clear pictures, and people can conveniently observe the ground clearly; the light-emitting part comprises a water drop cavity positioned in the top of the door frame, a pair of rotating rods is arranged in the water drop cavity, the bottom end of each rotating rod is connected with a lamp tube, a light-gathering sleeve is sleeved outside each lamp tube, electromagnets are arranged on the front side wall and the rear side wall of the water drop cavity, the electromagnets are connected with the signal processing module, the electromagnets are separately electrified and generate magnetic force to attract the rotating rods to approach the rotating rods after being electrified, light guide blocks are arranged on two sides of the bottom of the water drop cavity, and the light guide blocks guide light rays emitted by the lamp tubes to the outside of the; the bottom of the water drop cavity is provided with an infrared detection part which detects the motion trail of a person below the water drop cavity; thereby the area that infrared detection portion can detect is increased to infrared detection portion bottom is provided with the cambered surface.

Preferably, a display screen is arranged on the inner side of the door panel, and the display screen is connected with the signal processing module and is controlled by the signal processing module to display related information; a back locking control panel is arranged on a panel on the inner side of the electronic lockset, and the back locking can be performed from the inside after the door is closed through the back locking control panel; the unlocking control panel can be provided with locking time, and the unlocking can not be carried out from the outside within a set time range; a face camera with an auxiliary function is arranged above the back locking control panel, so that the door can be opened from the inner side conveniently; the inside and outside of door plant is located the side of electronic lock is provided with the handle, and the handle that is located the inboard has to connect mechanical locking mechanism and can carry out the back locking from inside.

Preferably, the door frame inboard is provided with emergency alarm button and lower emergency alarm button, go up emergency alarm button with emergency alarm button 'all connects down signal processing module, signal processing module can send the police dispatch newspaper to owner's terminal immediately after receiving emergency alarm information.

Preferably, the inboard is provided with the mistake on hand and touches the switch, the mistake touch the switch with emergency alarm button' cooperation work down, both during simultaneous working just can send the police dispatch newspaper to avoid children or pet maloperation at home.

Preferably, the signal processing module comprises a processor, an internal memory and an information transmitting and receiving device which are arranged in the electronic lock; the internal memory stores relevant information and reserves enough storage space for temporarily storing data information; the processor processes data sent by the fingerprint unlocking module, the password unlocking module and the face unlocking module, compares the data with data of the internal memory to judge whether unlocking is performed, processes a monitoring picture shot by the monitoring head and uploads the monitoring picture to a local database; the local database has access authority, and can be freely accessed by a host through a key; the database reserved interface can be connected with a database of a police station, so that a monitoring picture is sent to the police station to be compared and used for judging whether people outdoors are wanted evacuees or not; the information transmitting and receiving device is used for uploading the data processed by the internal memory to the local database.

Preferably, foot pads are arranged on the ground at the outer side and the inner side of the door panel, piezoresistors are arranged in the foot pads, when the foot pads are used for standing people, the piezoresistors are triggered to work, and the piezoresistors are connected with the signal processing module; when the piezoresistor is triggered to work, the electromagnet on one corresponding side is electrified to work to attract the rotating rod to approach the rotating rod, so that the lamp tube is turned to the side.

Preferably, the highest position of the monitoring head is 1.9m away from the ground, and the lowest position of the monitoring head is 1.3m away from the ground.

Preferably, the electronic lock module comprises a fingerprint unlocking module, a password unlocking module and a human face unlocking module; the password unlocking module comprises a touch screen arranged on a panel of the electronic lock, and numbers, letters and characters displayed on the touch screen are unordered; the touch screen accurately captures information of numbers, letters and characters pressed by a user and transmits the information to the processor for processing; the face unlocking module comprises a face camera arranged on a panel of the electronic lock, a light source is arranged above the face camera, the light source emits light information to a face, and the face camera captures light information reflected by the face.

Preferably, the door frame and the edge of the door plate are provided with electromagnets in a matched mode, the electromagnets adsorb each other temporarily after electronic unlocking is successful, the door is prevented from being opened by mistake, and the electromagnetic force is small, so that the door can be opened by a person through hand pushing.

Preferably, the upper emergency alert button is 1.4m from the ground, and the lower emergency alert button is 0.9m from the ground.

The invention provides an intelligent door lock with an automatic monitoring function, which can record information of unlocking people, thereby improving the safety, counting the number of people entering and exiting, distinguishing which people are in front of a door, and judging whether the door can be freely unlocked or not; the unlocking device has the characteristics of convenience in unlocking and high safety performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic view of the backside structure of the present invention.

Fig. 3 is a schematic sectional view taken along the line a-a in fig. 1.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments described herein without the need for inventive work, are within the scope of the present invention.

As shown in fig. 1 to 3, an intelligent door lock with an automatic monitoring function comprises an electronic lock 3 installed on a door panel 1, wherein the electronic lock 3 comprises two modes of electronic unlocking and mechanical unlocking, and a hinge is arranged on one side of the door panel 1 so as to be rotatably installed on a door frame 2; the electronic lock 3 is provided with a signal processing module and an electronic lock module; the outer side columns of the door frame 2 are respectively provided with a groove, a row of monitoring heads 22 are vertically arranged in the grooves, and privacy glass covers the grooves to prevent the inner side of the grooves from being observed by outside people; the monitoring head 22 shoots image information, including videos and static pictures, on the outer side of the door panel 1 and transmits the shot information to the signal processing module for processing; the top parts of the inner side and the outer side of the door frame 2 are provided with light emitting parts which illuminate the lower part of the door frame to provide illumination, so that the monitoring head 22 can shoot clear pictures conveniently, and people can observe the ground clearly; the light emitting part comprises a water drop cavity 20 positioned in the top of the door frame 2, a pair of rotating rods 5 are arranged in the water drop cavity 20, the bottom ends of the rotating rods 5 are connected with lamp tubes 51, light-gathering sleeves 52 are sleeved outside the lamp tubes, electromagnets 201 are arranged on the front side wall and the rear side wall of the water drop cavity 20, the electromagnets 201 are connected with the signal processing module, the electromagnets 201 are respectively separately electrified and generate magnetic force to attract the rotating rods 5 to approach, light guide blocks 21 are arranged on two sides of the bottom of the water drop cavity 20, and the light guide blocks 21 guide light rays emitted by the lamp tubes 51 to the outside of the water drop cavity 20; an infrared detection part 23 is arranged at the bottom of the water drop cavity 20, and the infrared detection part 23 detects the motion track of a person below; the bottom of the infrared detection part 23 is provided with a cambered surface 231 so as to increase the area which can be detected by the infrared detection part 23. The infrared detection unit 23 of the present apparatus can detect the movement locus of the person below, and can determine whether the person is away from home or home by matching the pressed sequence of the foot pad 4. And then, the lamp tube 51 is matched to illuminate the ground in front of the person.

The display screen 6 is arranged on the inner side of the door panel 1, and the display screen 6 is connected with the signal processing module and is controlled by the signal processing module to display related information; an anti-lock control panel 35 is arranged on a panel on the inner side of the electronic lockset 3, and the door can be locked from the inside after being closed through the anti-lock control panel 35; the unlocking control panel 35 can be provided with locking time, and the lock cannot be unlocked from the outside within a set time range; a face camera 32 with an auxiliary function is arranged above the back locking control panel 35, so that the door can be opened from the inner side conveniently; the inside and outside of door plant 1 is located the side of electronic lock 3 is provided with handle 31, and the handle 31 that is located the inboard has and connects mechanical locking mechanism and can carry out the back locking from inside.

2 inboards of door frame are provided with emergency alarm button 61 and lower emergency alarm button 61 ', go up emergency alarm button 61 with emergency alarm button 61 ' all connects down the signal processing module, signal processing module can send the police dispatch newspaper to owner's terminal immediately after receiving emergency alarm information. When people in the house observe people outside the door displayed by the display screen, the people are unknown people, or receive feedback information of a database of a police station, and express that people outside the door flee for a crime, the police can rapidly give an alarm, can protect the safety of the police, and can help the police to catch the criminal.

Be provided with mistake on inboard handle 31 and touch switch 62, mistake touch switch 62 with down emergency alarm button 61' cooperation work, both during simultaneous working just can send the police dispatch newspaper to avoid children or pet maloperation at home.

The signal processing module comprises a processor, an internal memory and an information transmitting and receiving device which are arranged in the electronic lock 3; the internal memory stores relevant information and reserves enough storage space for temporarily storing data information; the processor processes data sent by the fingerprint unlocking module, the password unlocking module and the face unlocking module, compares the data with data of the internal memory, judges whether unlocking is performed or not, processes a monitoring picture shot by the monitoring head 22 and uploads the monitoring picture to a local database; the local database has access authority, and can be freely accessed by a host through a key; the database reserved interface can be connected with a database of a police station, so that a monitoring picture is sent to the police station to be compared and used for judging whether people outdoors are wanted evacuees or not; the information transmitting and receiving device is used for uploading the data processed by the internal memory to the local database.

Foot pads 4 are arranged on the ground at the outer side and the inner side of the door panel 1, piezoresistors are arranged in the foot pads 4, when the foot pads 4 stand on a person, the piezoresistors are triggered to work, and the piezoresistors are connected with the signal processing module; when the piezoresistor is triggered to work, the electromagnet 201 on the corresponding side is electrified to work to attract the rotating rod 5 to approach the rotating rod, so that the lamp tube 51 is turned to the side. The arrangement enables people to obtain good illumination no matter people go out or enter the door, thereby avoiding tripping over. Especially, the single person can not be lighted at home when going home at night, and the accident of falling is very easy to happen.

The highest position of the monitoring head is 1.9m away from the ground, and the lowest position of the monitoring head is 1.3m away from the ground.

The electronic lock module comprises a fingerprint unlocking module, a password unlocking module and a face unlocking module; the password unlocking module comprises a touch screen 34 arranged on a panel of the electronic lockset 3, and numbers, letters and characters displayed on the touch screen 34 are unordered; the touch screen 34 accurately captures the information of the numbers, letters and characters pressed by the user and transmits the information to the processor for processing; the face unlocking module comprises a face camera 32 arranged on a panel of the electronic lock 3, a light source 33 is arranged above the face camera 32, the light source 33 emits light information to a face, and the face camera 32 captures light information reflected by the face.

The door frame 2 and the edge of the door plate 1 are provided with electromagnets in a matched mode, the electromagnets adsorb each other temporarily after electronic unlocking is successful, the door is prevented from being opened by mistake, and the electromagnetic force is small, so that the door can be opened by a person through hand pushing.

The upper emergency alert button 61 is 1.4m from the ground, and the lower emergency alert button 61' is 0.9m from the ground.

This device still is provided with light sensor on the door frame, judges through it whether the door closes. If the door is detected to be closed, the door is automatically locked, and the situation that the parents forget to lock the door and the children in the house run around is avoided.

The monitoring head 22 is used for checking the condition outside the door, when judging that the person who unlocks is not the master, the monitoring head starts working, shoots the face information of the person outside the door, transmits the information to a database of a police station for comparison, and immediately sends alarm information to help the police to solve the case if the information is found to be a flee. Alarm information, including time and place, and the number of persons photographed. The device is provided with two rows of monitoring heads 22 on both sides so that face information of people of different heights can be photographed.

This device has set up two callus on the sole 4, according to the order of the piezo-resistor work in the callus on the sole 4 to can judge whether leave home or go home. The number of people in the current home can be calculated by counting the data of two different conditions.

When the device works, the detailed information of family members, including height, weight, fingerprint, facial information and the like, can be stored in the internal storage device, the comparison is carried out during unlocking, and the unlocking is carried out if the information is consistent. If the information does not match with the face information, the information is sent to the owner at the first time, and meanwhile, the monitoring head 22 is started to work, the face information of the person outdoors is shot, and the face information is sent to the terminal of the owner. And the information is transmitted to a database of a police department for comparison, and if the information is found to be a flee, alarm information is sent immediately to help the police to solve a case. Alarm information, including time and place, and the number of persons photographed.

The device mainly depends on an external power supply for power supply, but in order to realize the policy of energy conservation and emission reduction, except for locking work and the foot pad 4, other equipment is in a dormant state when not used. When people stand on the foot pad 4, the piezoresistor is triggered, and other devices of the device start to work, including the unlocking judgment function of the locking module, the monitoring module, the signal processing module and the gravity sensing module.

The device also has a built-in storage battery when the external power supply is accidentally disconnected. The storage battery is used for temporarily supplying power to the electronic lock 3, and electronic locking and unlocking services are provided.

More content can be displayed on the display screen 6:

first, the current weather conditions outside the door can be displayed, and people can not pay attention to the weather conditions in the first time when going out in a hurry, so people can be in no time if the weather suddenly changes. And the display screen 6 on the door displays weather information, so that people can see the weather information at the first time when going out, and thus, the preparation work can be well done.

Second, the air conditions in the anterior chamber room are displayed. When the family comes back from the outdoors, the family can know the condition in the house at the first time; if the temperature is higher or lower, starting an air conditioner to carry out proper temperature regulation; if the natural gas or other dangerous gas is found to have more components, relevant treatment is immediately carried out, and dangers are avoided.

Thirdly, the face information of a person trying to enter the door can be displayed, so that the person in the door can judge whether unlocking is needed or not by himself, and safety is guaranteed.

Fourthly, the characters with positive energy can be displayed, people go out to work, the first sentence in the face has a very strong mind suggesting function, and the characters with positive energy can make people full of strength.

Fifthly, the displayed content including patterns, videos and character information can be customized, and the taste of the owner is displayed.

Sixth, the above information can be displayed simultaneously or at intervals.

The function of the device is as follows: 1. counting the number of people who enter and exit, and analyzing who enters and exits and who is not at home; 2. distinguishing people in front of the door so as to judge whether unlocking can be realized; if the family can be unlocked freely, the non-family needs to be unlocked by the master; 3. the unlocking is convenient; 4. the gravity induction is matched, when people come, the work is started, and whether the people are the master or not is to be judged; 5. the networking function of public security is added, and the invading face is shot, so that public security is helped to solve a case, and evasion is pursued; 5. the network connection function, the storage battery, the storage function and the police station are equipped, and the data information is updated regularly.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an intelligence lock with automatic monitoring function which characterized in that: the electronic lock comprises an electronic lock (3) arranged on a door panel (1), wherein the electronic lock (3) comprises two modes of electronic unlocking and mechanical unlocking, and a hinge is arranged on one side of the door panel (1) so as to be rotatably arranged on a door frame (2); the electronic lock (3) is provided with a signal processing module and an electronic lock module; the outer side columns of the door frame (2) are respectively provided with a groove, a row of monitoring heads (22) are vertically arranged in the grooves, and privacy glass covers the grooves to prevent the grooves from being observed by outside people; the monitoring head (22) shoots image information of the outer side of the door panel (1), including videos and static pictures, and transmits the shot information to the signal processing module for processing; the top parts of the inner side and the outer side of the door frame (2) are respectively provided with a light-emitting part, and the light-emitting parts illuminate the lower part of the door frame to provide illumination, so that the monitoring head (22) can conveniently shoot clear pictures, and people can conveniently observe the ground clearly; the luminous part comprises a water drop cavity (20) located in the top of the door frame (2), a pair of rotating rods (5) is arranged in the water drop cavity (20), the bottom end of each rotating rod (5) is connected with a lamp tube (51), a light gathering sleeve (52) is sleeved outside each lamp tube, electromagnets (201) are arranged on the front side wall and the rear side wall of the water drop cavity (20), the electromagnets (201) are connected with the signal processing module, the electromagnets (201) are respectively electrified separately, magnetic force is generated after the electromagnets are electrified to attract the rotating rods (5) to be close to each other, light guide blocks (21) are arranged on the two sides of the bottom of the water drop cavity (20), and light emitted by the lamp tubes (51) is guided to the outside of the water drop cavity (20) by; an infrared detection part (23) is arranged at the bottom of the water drop cavity (20), and the infrared detection part (23) detects the motion trail of a person below the water drop cavity; the bottom of the infrared detection part (23) is provided with an arc surface (231) so as to increase the area which can be detected by the infrared detection part (23).

2. The intelligent door lock with automatic monitoring function according to claim 1, characterized in that: a display screen (6) is arranged on the inner side of the door panel (1), and the display screen (6) is connected with the signal processing module and is controlled by the signal processing module to display related information; an anti-lock control panel (35) is arranged on a panel on the inner side of the electronic lock (3), and the door can be locked from the inside after being closed through the anti-lock control panel (35); the unlocking control panel (35) can be provided with locking time, and the unlocking can not be carried out from the outside within a set time range; a face camera (32) with an auxiliary function is arranged above the back locking control panel (35), so that the door can be opened from the inner side conveniently; the inside and outside side of door plant (1) is located the side of electronic lock (3) is provided with handle (31), and handle (31) that are located inboard have and connect mechanical anti-lock mechanism and can carry out the anti-lock from inside.

3. The intelligent door lock with automatic monitoring function according to claim 2, characterized in that: the emergency alarm device is characterized in that an emergency alarm button (61) and an emergency alarm button (61 ') are arranged on the inner side of the door frame (2), the emergency alarm button (61) is connected with the emergency alarm button (61') in a downward mode, the signal processing module receives the emergency alarm information and then can send an alarm to the owner terminal immediately.

4. The intelligent door lock with automatic monitoring function according to claim 3, characterized in that: be provided with mistake on inboard handle (31) and touch switch (62), mistake touch switch (62) with down emergency alarm button (61') cooperation work, both during simultaneous operation just can send the police dispatch newspaper to avoid children or pet maloperation at home.

5. The intelligent door lock with automatic monitoring function according to claim 3, characterized in that: the signal processing module comprises a processor, an internal memory and an information transmitting and receiving device which are arranged in the electronic lock (3); the internal memory stores relevant information and reserves enough storage space for temporarily storing data information; the processor processes data sent by the fingerprint unlocking module, the password unlocking module and the face unlocking module, compares the data with data of the internal memory to judge whether unlocking is performed, processes a monitoring picture shot by the monitoring head (22), and uploads the monitoring picture to a local database; the local database has access authority, and can be freely accessed by a host through a key; the database reserved interface can be connected with a database of a police station, so that a monitoring picture is sent to the police station to be compared and used for judging whether people outdoors are wanted evacuees or not; the information transmitting and receiving device is used for uploading the data processed by the internal memory to the local database.

6. The intelligent door lock with automatic monitoring function according to claim 2, characterized in that: foot pads (4) are arranged on the ground at the outer side and the inner side of the door panel (1), piezoresistors are arranged in the foot pads (4), when the foot pads (4) stand on a person, the piezoresistors are triggered to work, and the piezoresistors are connected with the signal processing module; when the piezoresistor is triggered to work, the electromagnet (201) on the corresponding side is electrified to work to attract the rotating rod (5) to approach the rotating rod, so that the lamp tube (51) is turned to the side.

7. The intelligent door lock with automatic monitoring function according to claim 2, characterized in that: the highest position of the monitoring head is 1.9m away from the ground, and the lowest position of the monitoring head is 1.3m away from the ground.

8. The intelligent door lock with automatic monitoring function according to claim 2, characterized in that: the electronic lock module comprises a fingerprint unlocking module, a password unlocking module and a face unlocking module; the password unlocking module comprises a touch screen (34) arranged on a panel of the electronic lock (3), and numbers, letters and characters displayed on the touch screen (34) are unordered; the touch screen (34) accurately captures information of numbers, letters and characters pressed by a user and transmits the information to the processor for processing; the face unlocking module comprises a face camera (32) arranged on a panel of the electronic lock (3), a light source (33) is arranged above the face camera (32), the light source (33) emits light information to a face, and the face camera (32) captures light information reflected by the face.

9. The intelligent door lock with automatic monitoring function according to claim 1, characterized in that: the door frame (2) and the edge of the door plate (1) are provided with electromagnets in a matched mode, the electromagnets adsorb each other temporarily after electronic unlocking is successful, the door is prevented from being opened by mistake, and the electromagnetic force is small, so that the door can be opened by a person through pushing.

10. The intelligent door lock with automatic monitoring function according to claim 4, characterized in that: the upper emergency alert button (61) is 1.4m from the ground, and the lower emergency alert button (61') is 0.9m from the ground.