CN217227495U - Anti-theft alarm - Google Patents

Abstract

The utility model discloses an anti-theft alarm. Burglar alarm includes the casing, human response module and alarm module, which comprises a housin, human response module and alarm module, human response module is provided with a plurality ofly, a human body for responding to the settlement scope, a plurality of human response modules are arranged in the inboard of casing along the circumference direction of casing, the response scope coincidence of two arbitrary adjacent human response modules, the alarm module sets up in the casing, alarm module and human response module electric connection, wherein, when human response module senses the human time value that reaches the settlement of settlement scope, the alarm module sends out the police dispatch newspaper. A plurality of human response modules circumference is arranged, and the response scope coincidence of two arbitrary adjacent human response modules, consequently, burglar alarm can 360 monitoring vehicle oil tanks.

Description

Anti-theft alarm

Technical Field

The utility model relates to a technical field of car fuel tank monitoring especially relates to an burglar alarm.

Background

The fuel tanks of vehicles such as large trucks, long-distance trucks and the like are generally exposed and the fuel tank covers are arranged externally, so that gasoline in the fuel tanks is easy to steal, and in order to prevent the gasoline from being stolen, the surfaces of the fuel tanks are fixedly provided with alarm devices through bolts.

In the related art, the alarm device is provided with a human body induction module and an alarm module, and the human body induction module is used for inducing the human body condition nearby. When the oil consumer steals oil, the alarm module can give out an alarm to scare the oil consumer and remind a driver of stealing the oil by someone. However, because the human body induction module is unreasonable in arrangement, an induction blind area still exists around the alarm device, and if the induction blind area is utilized when oil is stolen by an oil consumer, the problem that the induction blind area is not discovered still exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an anti-theft alarm prevents that oil consumer from utilizing the blind area to steal oil.

According to the utility model discloses burglar alarm of first aspect embodiment includes:

a housing;

a plurality of human body induction modules which are used for inducing human bodies within a set range, the human body induction modules are arranged at the inner side of the shell along the circumferential direction of the shell, the induction ranges of any two adjacent human body induction modules are overlapped,

the alarm module set up in the casing, the alarm module with human response module electric connection, wherein, work as human response module senses when setting for the human time value that reaches the settlement of scope, the alarm module sends out the police dispatch newspaper.

According to the utility model discloses burglar alarm has following beneficial effect at least: a plurality of human response modules are arranged along the circumference direction of casing interval in proper order, and the response scope coincidence of two arbitrary adjacent human response modules for the monitoring of burglar alarm degree can be realized, thereby avoids the oil consumer to utilize the blind area to steal oil.

According to some embodiments of the utility model, the human response module is provided with six at least.

According to some embodiments of the utility model, the casing has bottom and top, the bottom is used for being close to the setting of car oil tank, the top is used for keeping away from the setting of car oil tank, the direction of bottom to top is set for first settlement direction, the orientation of human response module is the direction is set for the second, first settlement direction with contained angle between the direction is set for to the second is less than or equal to 80 degrees.

According to some embodiments of the present invention, the housing further comprises a base, the housing being disposed on the base, the base being configured to be assembled to a vehicle fuel tank;

burglar alarm is still including being used for control switch, control switch is used for burglar alarm's circular telegram and outage, the base has been seted up and has been extended to the base is kept away from the mounting hole of one side of casing, control switch set up in the base, control switch's control button at least part is located the mounting hole.

According to some embodiments of the utility model, the casing still includes the base, burglar alarm still includes magnet, magnet set up in the casing for inhale with car fuel tank magnetism and be connected.

According to some embodiments of the present invention, the burglar alarm further comprises a vibration sensing module, the vibration sensing module is disposed in the housing and electrically connected to the alarm module; when the vibration sensing module senses that the vibration of the vehicle oil tank exceeds a set threshold value, the alarm module is triggered.

According to the utility model discloses a some embodiments still include central controller, central controller is used for being connected with mobile phone communication, and with alarm module electric connection, central controller is used for controlling the response scope of human response module, and is used for receiving the response information of human response module, with control the alarm module sends out the police dispatch newspaper.

According to the utility model discloses car fuel tank burglar alarm method of second aspect embodiment, including following step:

s100, setting a sensing range of the human body sensing module;

s200, sensing a human body in a set range around a vehicle fuel tank by using a plurality of human body sensing modules, wherein the human body sensing modules are sequentially arranged in the circumferential direction around a central shaft, and the sensing ranges of any two adjacent human body sensing modules are overlapped;

s300, judging the existence time of the human body, wherein if the existence time of the human body exceeds a set time value, the alarm module is triggered.

According to some embodiments of the present invention, the method further comprises the steps of sensing the vibration of the vehicle fuel tank by using the vibration sensing module;

wherein, the existence time of sensing the human body exceeds the set time value, and/or, when the vibration of sensing the car oil tank exceeds the set threshold value, trigger the alarm module

According to some embodiments of the present invention, the human body sensing module is electrically connected to the central controller, and the central controller is in communication connection with the mobile phone; in step S100, the sensing range of the human body sensing module is set by the mobile phone, the set information is transmitted to the central controller, and the central controller controls the sensing range of the human body sensing module.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

FIG. 1 is a schematic view of an anti-theft alarm and an oil tank of an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of the burglar alarm according to the embodiment of the present invention;

FIG. 3 is an exploded view of the burglar alarm according to the embodiment of the present invention;

fig. 4 is a schematic layout view of a plurality of human body induction modules according to an embodiment of the present invention;

fig. 5 is a schematic view of a top view of six body sensing modules according to an embodiment of the present invention;

fig. 6 is a front view of the human body induction module according to the embodiment of the present invention;

FIG. 7 is a schematic diagram of a partial explosion of an burglar alarm according to an embodiment of the present invention;

FIG. 8 is a flow chart of a vehicle fuel tank burglar alarm method.

The anti-theft alarm device 10, the shell 100, the shell 110, the lens 120, the human body sensing module 200, the vibration sensing module 300, the base 400, the protrusion 410, the mounting hole 420, the circuit board 500, the SIM module 510, the Bluetooth module 520, the control switch 530, the alarm module 600, the magnet 700, the protective pad 800, the vehicle fuel tank 900 and the fuel tank cover 910.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

According to the utility model discloses an burglar alarm 10 in the first aspect, refer to fig. 1 to fig. 4, which comprises a housin 100, human response module 200 and alarm module 600, human response module 200 is provided with a plurality ofly, a human body for the scope is set for in the response, a plurality of human response modules 200 are arranged in the inboard of casing 100 along the circumference direction of casing 100, the response scope coincidence of two arbitrary adjacent human response modules 200, alarm module 600 sets up in casing 100, alarm module 600 and human response module 200 electric connection, wherein, when human response module 200 senses the human time value that reaches the settlement scope, alarm module 600 sends the police dispatch newspaper.

Specifically, when the driver is at rest and at a distance from the fuel tank 900, the burglar alarm 10 is mounted on the upper surface of the fuel tank 900, i.e., on the same side as the fuel tank cap 910 (see fig. 1). The plurality of human body sensing modules 200 cooperate to sense the human body condition around the vehicle fuel tank 900. If the staying time of people near the vehicle oil tank 900 exceeds the set time value, the anti-theft alarm 10 judges that the oil is consumed, and the alarm module 600 gives out an alarm to remind a driver of stealing the oil.

When can understand, a plurality of human response modules 200 are arranged along the circumference direction of casing 100 interval in proper order, and the response scope coincidence of two arbitrary adjacent human response modules 200 for 360 degrees monitoring can be realized to burglar alarm 10, thereby avoids oil consumer to utilize the blind area to steal oil. It should be added that, in the field, monitoring is generally performed only for necessary areas, and only one human body sensor is generally provided for monitoring so as to meet monitoring requirements.

In some embodiments, the housing 100 includes a casing 110 and a plurality of lenses 120, the lenses 120 are provided at least in six, and are sequentially spaced in a circumferential direction of the casing 110; the number of the human body induction module 200 and the number of the lens 120 are set to be consistent and are arranged in one-to-one correspondence with the lens 120, and the human body induction module 200 is arranged on the inner side of the shell 110 and is vertically arranged towards the lens 120 for inducing a human body within a set range.

In some embodiments, at least six or more than six human body sensing modules 200 are provided. In the current market, the sensing range of the human body sensing module 200 is conical, the sensing angle is about 120 degrees at most, and the sensing distance is limited. Referring to fig. 1, if the number of the human body induction modules 200 is six, the induction range of each human body induction module 200 is one hundred twenty degrees, and therefore, the induction ranges of any two adjacent human body induction modules 200 are overlapped, so that the periphery of the oil tank 900 of the 360-degree monitoring vehicle can be met. It can be seen from above that, this application scheme adopts six or more than six human response module 200, satisfies under burglar alarm 10 can 360 degrees monitoring vehicle oil tanks 900's the prerequisite, guarantees that the staff can obtain the human response module 200 that satisfies the requirement on present market.

In some embodiments, the burglar alarm further comprises a central controller, wherein the central controller is used for being in communication connection with the mobile phone and electrically connected with the alarm module 600 and the human body sensing module 200. The central controller is used for controlling the sensing range of the human body sensing module 200 and receiving the sensing information of the human body sensing module 200, so as to control the alarm module 600 to give an alarm.

Specifically as following, central controller is connected with driver's cell-phone communication, and the driver sets up the value of human body sensor's response scope through the APP that corresponds, generally between 0.3 meters to 6 meters (the interval between human body and the human body response module 200). After the setting is finished, the mobile phone transmits the set information to a central controller of the anti-theft alarm device, and the central controller controls the sensing range of the human body sensing module 200. Meanwhile, the central controller is also used for receiving the sensing information of the human body sensing module 200, so that the sensed information is transmitted to the mobile phone, and the mobile phone timely reminds a driver of stealing oil. And the central controller controls the alarm module to give an alarm according to the sensed information.

In some embodiments, referring to fig. 2 and 3, the housing 110 has a bottom portion for being disposed adjacent to the vehicle fuel tank 900, i.e., for being attached to the upper surface of the vehicle fuel tank 900 (see fig. 1), and a top portion for being disposed away from the vehicle fuel tank 900, i.e., at an end of the burglar alarm 10 away from the vehicle fuel tank 900. The direction from the bottom to the top is set as a first set direction, i.e. the direction from the bottom to the top, the orientation of the human body induction module 200 is a second set direction, and the included angle between the first set direction and the second set direction is at least below 80 degrees. In other words, the head of the human body sensor module 200 is raised by more than 10 degrees with respect to the upper surface of the car fuel tank 900, so that the sensing range of the human body sensor module 200 is adjusted upward, and referring to fig. 7, the solid line is in an unadjusted state, and the dotted line is in an adjusted state. The human body induction modules 200 are arranged in the above manner, so that oil is further prevented from being stolen by an oil consumer through the blind area at the top of the anti-theft alarm 10.

In some embodiments, referring to fig. 3 and 7, the housing 100 further includes a base 400, the casing 110 is disposed on the base 400, and the base 400 is configured to be mounted on a vehicle fuel tank 900. The base 400 is provided with a mounting hole 420, and the mounting hole 420 extends to a side of the base 400 far away from the outer shell 110, that is, to a side of the base 400 close to the vehicle oil tank 900. The burglar alarm 10 further comprises a control switch 530, the control switch 530 is disposed inside the base 400 and is used for controlling the power on and off of the burglar alarm 10, wherein a control button of the control switch 530 is at least partially located in the mounting hole 420. It can be seen from above that, the control button of the control switch 530 is disposed on the base 400, namely, on the side of the burglar alarm 10 close to the vehicle fuel tank 900, so as to prevent the fuel from turning off the burglar alarm 10 and to implement the fuel stealing behavior.

Further, the burglar alarm 10 further comprises a magnet 700, the magnet 700 is arranged at the bottom of the base 400, and one side, away from the base 400, of the magnet 700 is connected with the upper surface of the fuel tank 900 in a magnetic absorption mode, so that the burglar alarm 10 is fixedly installed on the fuel tank 900. Through the arrangement of the magnet 700, when the burglar alarm 10 is used, a worker can conveniently install the burglar alarm 10 in the vehicle fuel tank 900; when not in use, the burglar alarm 10 can be conveniently detached by a user.

It is worth noting that the burglar alarm 10 in the scheme of the application is fixed on the upper surface of the vehicle oil tank 900 through the magnet 700, if the existing burglar alarm 10 is fixed on the vehicle oil tank 900 in the magnet 700 mode, the burglar alarm 10 is prone to being out of place, so that the burglar alarm 10 cannot monitor necessary areas, and the oil consumption cannot be found when stealing oil. In this application scheme, burglar alarm 10 can 360 degrees monitoring burglar alarm 10 all around through setting up six human response modules 200, consequently, no matter how the driver puts burglar alarm 10, burglar alarm 10 still can monitor the necessary region all around of car oil tank 900 effectively, prevents that oil is stolen to the oil consumer.

It will be appreciated that the control buttons of the control switch 530 are located at the bottom of the base 400, and that the burglar alarm 10 is cumbersome to turn off. In the scheme of the application, the burglar alarm 10 is fixed on the vehicle oil tank 900 through the magnet 700, and the burglar alarm 10 is convenient to disassemble, so that the burglar alarm 10 can be conveniently closed through the control button.

Further, the base 400 has a protrusion 410 having a column shape, and the mounting hole 420 is disposed on the protrusion 410. The magnet 700 is an annular body and is sleeved outside the protrusion 410, and the outer peripheral surface of the magnet 700 is flush with the outer peripheral surface of the base 400. The outer shell 110 is sleeved outside the base 400 and the magnet 700, and the edge surface of the lower port of the outer shell 110 is flush with the bottom surface of the magnet 700. As can be seen from the above, the magnet 700 is sleeved outside the protrusion 410, the magnet 700 is more conveniently disassembled, and the housing 110 is assembled outside the magnet 700, so that the magnet 700 is effectively protected.

In some embodiments, the burglar alarm 10 further comprises a protection pad 800, the protection pad 800 is adhered to the bottom surface of the magnet 700 away from the base 400, and the peripheral surface of the protection pad 800 is attached to the inner peripheral surface of the housing 110. The magnet 700 is further effectively protected by the protection pad 800.

In some embodiments, the burglar alarm 10 further comprises a vibration sensing module 300 for sensing a vibration condition of the fuel tank 900. Specifically, through the setting of the vibration sensing module 300, when the vibration sensing module 300 senses that the vibration of the fuel tank 900 exceeds a set threshold value, it is determined that the fuel is stolen by a fuel consumer, and the alarm module 600 is triggered to remind a driver that someone steals the fuel.

It should be noted that, when the burglar alarm system is set up, no matter whether the time that the human body is sensed by the human body sensing module 200 and is close to the car oil tank 900 exceeds the set time value or whether the vibration that the vibration sensing module 300 senses the car oil tank 900 exceeds the set threshold value, the triggering condition of the alarm module 600 can be satisfied, and the alarm module 600 sends out the alarm for reminding the driver. Therefore, the anti-theft alarm system adopts the arrangement, so that the vehicle oil tank 900 is further monitored, and oil stealing by oil consumers is prevented.

Or, when the time that the human body is close to the car oil tank 900 exceeds the set time value when the human body sensing module 200 senses that the human body is close to the car oil tank 900 and the vibration sensing module 300 senses that the vibration of the car oil tank 900 exceeds the set threshold value, the triggering condition of the alarm module 600 can be met, and the alarm module 600 sends out the alarm for reminding the driver. By adopting the arrangement, the anti-theft alarm system monitors the oil consumption by matching the human body induction module 200 with the vibration induction module 300, thereby preventing the problem of misjudgment of the single human body induction module 200 or the single vibration induction module 300.

It should be noted that, since the burglar alarm 10 is fixed to the vehicle fuel tank 900 by the magnet 700, the burglar alarm 10 is prone to be stolen. In this application scheme, through the setting of vibrations response module 300, vibrations response module 300 can sense the vibrations of self, and when someone steals burglar alarm 10, vibrations response module 300 senses the vibrations of burglar alarm 10 self to remind the driver someone to steal burglar alarm 10 or petrol.

In some embodiments, the burglar alarm 10 further comprises a SIM module 510 and a bluetooth module 520, and the SIM module 510 and the bluetooth module 520 are disposed on the circuit board 500 of the burglar alarm 10. The burglar alarm 10 is in communication connection with the mobile phone through the bluetooth module 520 or the SIM module 510, so as to transmit the sensing signal to the driver. Specifically, according to the scheme, through the arrangement of the SIM module 510 and the Bluetooth module 520, the worker can communicate with the burglar alarm 10 through the Bluetooth module 520 and the burglar alarm 10, and therefore the use of the SIM card flow is saved. When the driver is far away from the burglar alarm 10, the Bluetooth module 520 is disconnected from the mobile phone of the driver, and at the moment, the SIM module 510 is in communication connection with the mobile phone of the driver, so that the mobile phone can remind the driver at the first time when oil is stolen by oil consumption.

In addition, the SIM card has a positioning function. When the burglar alarm 10 is stolen by other people, the driver can find the burglar alarm 10 according to the positioning of the SIM card no matter the burglar alarm 10 is in an open state or a closed state because the SIM card has a positioning function.

The anti-theft alarm method for the vehicle oil tank refers to fig. 4 and 8, and comprises the following steps:

s100, setting the induction range of the human body induction module 200;

s200, sensing human bodies in sensing ranges around the vehicle oil tank 900 by using the human body sensing modules 200, wherein the human body sensing modules 200 are sequentially arranged around the circumferential direction of a central shaft, and the sensing ranges of any two adjacent human body sensing modules 200 are overlapped along the circumferential direction of the central shaft;

s300, determining the existence time of the human body, wherein if the existence time of the human body exceeds the set time value, the alarm module 600 is triggered.

Specifically, in this application scheme, through setting up a plurality of individual human response module 200, and a plurality of human response module 200 are arranged along circumference direction interval in proper order. In addition, the sensing angle of each human body sensing module 200 is about 120 degrees in the circumferential direction (see fig. 5). Consequently, in circumferential direction, the response scope coincidence of two arbitrary adjacent human response modules 200 to the realization is to the monitoring of car tank 900360 degrees, thereby avoids the oil consumer to utilize the blind area to steal oil.

Further, the steps S100 and S200 further include the steps of sensing the vibration of the fuel tank 900 by the vibration sensing module 300; when the existence time of the human body exceeds a set time value or the vibration of the vehicle oil tank 900 exceeds a set threshold value, the alarm module 600 is triggered; or, when the existence time of the human body is monitored to exceed the set time value and the vibration of the vehicle oil tank 900 is monitored to exceed the set threshold value, an alarm is triggered.

Specifically, when burglar alarm system set up, no matter be human response module 200 sense the human time that is close to car oil tank 900 and exceed the time value of setting for, still shake response module 300 and sense the vibrations of car oil tank 900 and exceed the threshold value of setting for, the triggering condition of alarm module 600 all can be satisfied, alarm module 600 sends the warning of reminding the driver. Therefore, the anti-theft alarm system adopts the arrangement, so that the vehicle oil tank 900 is further monitored, and oil stealing by oil consumers is prevented. Or, when the time that the human body is close to the car oil tank 900 exceeds the set time value when the human body sensing module 200 senses that the human body is close to the car oil tank 900 and the vibration sensing module 300 senses that the vibration of the car oil tank 900 exceeds the set threshold value, the triggering condition of the alarm module 600 can be met, and the alarm module 600 sends out the alarm for reminding the driver. The anti-theft alarm system adopts the arrangement, and the oil consumption is monitored by matching the human body induction module 200 with the vibration induction module 300, so that the problem of misjudgment of the single human body induction module 200 or the single vibration induction module 300 is solved.

Further, the human body induction module 200 is in communication connection with the mobile phone through the bluetooth module 520 to transmit the induced signal to the mobile phone; if the bluetooth module 520 is disconnected from the mobile phone, the human body sensing module 200 is in communication connection with the mobile phone through the 4G or 5G communication module to transmit the sensed signal to the mobile phone. According to the scheme, through the arrangement of the SIM module 510 and the Bluetooth module 520, a worker can be in communication connection with the burglar alarm 10 and the burglar alarm 10 through the Bluetooth module 520, and therefore the use of SIM card flow is saved. When the driver is far away from the burglar alarm 10, the Bluetooth module 520 is disconnected from the mobile phone of the driver, and at the moment, the SIM module 510 is in communication connection with the mobile phone of the driver, so that the mobile phone can remind the driver at the first time when oil is stolen by oil consumption.

Furthermore, the human body sensing module 200 is electrically connected to a central controller, and the central controller is in communication connection with a mobile phone, for example, the bluetooth module 520 or the SIM module 510; in step S100, the sensing range of the human body sensing module 200 is set by the mobile phone, and the set information is transmitted to the central controller, and the central controller controls the sensing range of the human body sensing module 200.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (7)

1. Burglar alarm, its characterized in that includes:

a housing;

a plurality of human body induction modules which are used for inducing human bodies within a set range, the plurality of human body induction modules are arranged on the inner side of the shell along the circumferential direction of the shell, the induction ranges of any two adjacent human body induction modules are overlapped,

the alarm module is arranged in the shell and electrically connected with the human body induction module, and when the human body induction module induces that the human body in the set range reaches a set time value, the alarm module gives an alarm.

2. The burglar alarm according to claim 1, wherein said body sensing module is provided in at least six.

3. The burglar alarm according to claim 1, wherein the housing has a bottom portion and a top portion, the bottom portion is used for being close to a vehicle fuel tank, the top portion is used for being away from the vehicle fuel tank, a first set direction is set from the bottom portion to the top portion, the orientation of the human body induction module is a second set direction, and an included angle between the first set direction and the second set direction is smaller than or equal to 80 degrees.

4. The burglar alarm of claim 1, wherein said housing further comprises a base, said housing being arranged at said base, said base being adapted to be mounted to a vehicle fuel tank;

burglar alarm is still including being used for control switch, control switch is used for burglar alarm's circular telegram and outage, the base has been seted up and has been extended to the base is kept away from the mounting hole of one side of casing, control switch set up in the base, control switch's control button at least part is located the mounting hole.

5. The burglar alarm of claim 1, further comprising a magnet disposed in said housing for magnetically engaging with a vehicle fuel tank.

6. The burglar alarm according to any of claims 1 to 5, further comprising a vibration sensing module disposed within said housing and electrically connected to said alarm module; when the vibration sensing module senses that the vibration of the vehicle oil tank exceeds a set threshold value, the alarm module is triggered.

7. The burglar alarm according to claim 1, further comprising a central controller, wherein the central controller is used for being in communication connection with a mobile phone and being electrically connected with the alarm module, and the central controller is used for controlling the sensing range of the human body sensing module and receiving sensing information of the human body sensing module so as to control the alarm module to give an alarm.

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