CN110599733A - Anti-dismounting device for smoke alarm base and working steps thereof - Google Patents
Anti-dismounting device for smoke alarm base and working steps thereof Download PDFInfo
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- CN110599733A CN110599733A CN201910973427.2A CN201910973427A CN110599733A CN 110599733 A CN110599733 A CN 110599733A CN 201910973427 A CN201910973427 A CN 201910973427A CN 110599733 A CN110599733 A CN 110599733A
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- smoke
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- alarm
- micro control
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- 239000000779 smoke Substances 0.000 title claims abstract description 75
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000000007 visual effect Effects 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims description 9
- 230000030279 gene silencing Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000011900 installation process Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to a smoke alarm base anti-dismounting device and working steps thereof, comprising a fixed base fixedly arranged on a ceiling; a smoke sensing shell is covered on the surface of the fixed base, and a smoke sensor and a Hall switch are arranged in the smoke sensing shell; a magnetic part is arranged in the fixed base; the smoke sensor and the Hall switch are respectively connected with the micro control unit; the Hall switch outputs low level or high level to the micro control unit according to the relative distance of the magnetic part; the micro control unit is connected with an audible and visual alarm module. According to the invention, the magnetic part is arranged in the fixed base, and the basic principle of the Hall switch element is utilized, when the smoke sensing shell is stolen and separated from the fixed base, the distance between the Hall switch and the magnetic part is changed, so that the level is changed, and after the change is fed back to the microcontroller, the sound-light alarm module is started, the wireless communication module is controlled to send alarm information to the terminal, and a person on duty is informed.
Description
Technical Field
The invention relates to a smoke alarm, in particular to an anti-dismounting device of a smoke alarm base and working steps thereof, belonging to the technical field of fire fighting.
Background
In the prior art, as most of smoke alarms are used in public places, the base of the smoke alarm is fixed on a ceiling during installation, really valuable parts are all positioned in the shell, the shell is fixed on the base in a screwing or screwing mode and is very easy to detach, and the smoke sensor in the shell has higher recycling value, so that the situation that the shell of the smoke alarm is stolen occurs occasionally. Therefore, there is a need to provide a device that can alarm during a theft.
Disclosure of Invention
The purpose of the invention is: the anti-dismounting device for the base of the smoke alarm and the working steps of the anti-dismounting device are simple to install, convenient to use and timely in feedback process.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows: an anti-dismantling device of a smoke alarm base comprises a fixed base fixedly arranged on a ceiling; a smoke sensing shell is covered on the surface of the fixed base, and a smoke sensor and a Hall switch are arranged in the smoke sensing shell; a magnetic part is arranged in the fixed base; the smoke sensor and the Hall switch are respectively connected with the micro control unit; the Hall switch outputs low level or high level to the micro control unit according to the relative distance of the magnetic part; the micro control unit is connected with an audible and visual alarm module.
Preferably, a wireless communication module is arranged in the micro control unit; the micro control unit is connected with the server through a wireless communication module
Preferably, the magnetic part is a strong magnet; and a magnetic part mounting hole groove is formed in the fixed base.
Preferably, the mounting hole slots comprise at least three; the mounting hole grooves are uniformly distributed on the fixed base.
Preferably, the included angle between each two mounting hole grooves is 120 degrees; the magnetic part is embedded and fixed in the mounting hole groove.
Preferably, the micro control unit is an MCU; the smoke detector is characterized in that a cavity for accommodating the smoke sensor, the Hall switch and the power supply is formed in the smoke detector shell.
Preferably, the sound and light alarm module is provided with a sound attenuation button.
The working steps of the anti-dismantling device of the base of the smoke alarm are characterized by comprising the following steps:
s1, programming the microcontroller in advance, editing the level threshold value received by the microcontroller, and setting the level change during the first closing not to send an alarm and the smoke concentration threshold value received by the microcontroller;
s2, fixedly connecting the smoke sensing shell with the fixed base, wherein at the moment, the level changes due to the fact that the magnetic piece and the Hall switch are close to each other for the first time, but at the moment, the microcontroller does not send an alarm;
s3, after the installation process of S2 is completed, the level detection function of the microcontroller and the wireless communication module are started, and if the smoke detector shell is separated from the fixed base, the microcontroller judges whether the separation duration exceeds the preset time;
s4, if the separation duration exceeds the preset time, the microcontroller sends alarm information to the server terminal through the wireless communication module and starts the sound and light alarm module;
and S5, after the sound and light alarm module is started, the sound and light alarm module can be closed through the silencing button.
According to the invention, the magnetic part is arranged in the fixed base, and the basic principle of the Hall switch element is utilized, when the smoke sensing shell is stolen and separated from the fixed base, the distance between the Hall switch and the magnetic part is changed, so that the level is changed, and after the change is fed back to the microcontroller, the sound-light alarm module is started, the wireless communication module is controlled to send alarm information to the terminal, and a person on duty is informed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of an assembly structure of the present invention.
Fig. 2 is a schematic structural view of the smoke sensing housing.
Fig. 3 is a schematic structural view of the fixing base.
Fig. 4 is a schematic view of the internal structure of the smoke-sensitive housing.
FIG. 5 is a schematic diagram of a circuit related to the micro control unit and the Hall switch according to the present invention.
In the figure, 1 is a fixed base, 1.1 is a mounting hole groove, 2 is a smoke sensing shell, 3 is a Hall switch, and 4 is a magnetic part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development effort might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.
Referring to fig. 1-5, a smoke alarm base tamper device includes a fixed base 1 fixedly installed on a ceiling; a smoke sensing shell 2 is covered on the surface of the fixed base 1, and a smoke sensor and a Hall switch 3 are arranged in the smoke sensing shell 2; a magnetic part 4 is arranged in the fixed base 1; the smoke sensor and the Hall switch 3 are respectively connected with the micro control unit; the Hall switch 3 outputs low level or high level to the micro control unit according to the relative distance of the magnetic part 4; the micro control unit is connected with an audible and visual alarm module.
In particular, in the prior art, the single chip microcomputer detects the high and low level changes without using a separate sensor. In this embodiment, the MCU (single chip microcomputer) preferably adopts an MSP430FR2433I single chip microcomputer produced by Tesas Instruments, and adopts an MSP430 processor, so that the MCU has an analog-to-digital conversion function and can meet the detection requirement of an input level signal. Adopts AD conversion to process the frequency of 16MHz, has data conversion function,
furthermore, a wireless communication module is arranged in the micro control unit; the micro control unit is connected with the server through a wireless communication module.
Specifically, the micro control unit may be configured with a wireless transmission module (e.g., Wifi or bluetooth module).
Furthermore, the magnetic member 4 is a strong magnet; a magnetic piece mounting hole groove 1.1 is formed in the fixed base 1.
Further, the mounting hole slots 1.1 comprise at least three; the mounting hole grooves 1.1 are uniformly distributed on the fixed base 1.
Furthermore, the included angle between each mounting hole groove 1.1 is 120 degrees; the magnetic part is embedded and fixed in the mounting hole groove.
Furthermore, the micro control unit is an MCU; the smoke sensing shell 2 is internally provided with a cavity for accommodating the smoke sensor, the Hall switch and the power supply.
Furthermore, the sound and light alarm module is provided with a silencing button.
Specifically, the micro control unit (wireless communication module), the hall switching element and the audible and visual alarm module adopt the same power supply. The sound-light alarm module can adopt an external sound-light alarm, such as an LED three-color warning lamp. The opening and closing are controlled by a micro control unit.
Further, the working steps of the anti-dismounting device for the base of the smoke alarm are as follows:
s1, programming the microcontroller in advance, editing the level threshold value received by the microcontroller, and setting the level change during the first closing not to send an alarm and the smoke concentration threshold value received by the microcontroller;
s2, the smoke sensing shell and the fixed base are fixedly connected, at the moment, the level changes due to the fact that the magnetic piece and the Hall switch are close to each other for the first time, but at the moment, the micro control unit does not send an alarm;
s3, after the installation process of S2 is completed, the level detection function and the wireless communication module of the micro control unit are started, and if the smoke detector shell is separated from the fixed base, the micro control unit judges whether the separation duration exceeds the preset time;
s4, if the separation duration exceeds the preset time, the micro control unit sends alarm information to the server terminal through the wireless communication module and starts the sound and light alarm module;
and S5, after the sound and light alarm module is started, the sound and light alarm module can be closed through the silencing button.
The working process is as follows: 1. the precondition of anti-dismantling alarm is as follows: when shell 2 is felt to cigarette and unable adjustment base 1 is not fixed together, prevent tearing open monitoring function and close (realize through MCU programming), prevent tearing open the prerequisite that monitoring function opened and be: the closure of the fixed base 1 and the smoke detector housing 2 is produced once, i.e. the smoke detector housing is first mounted on the base, and the tamper-proof monitoring is only activated on this premise (by the change of the first level), after which the separation of the base from the smoke alarm triggers an alarm. The purpose of this design is to prevent the smoke sensing case 2 and the fixed base 1 from not being fixed together when the installer mounts the base on the ceiling, in which case the separation state of the smoke sensing case 2 and the base 1 does not need to be warned, and only when the base 1 has been mounted on the ceiling and then the smoke sensing case 2 has been fixed to the base 1, at which time the installer has gone, the separation of the smoke sensing case 2 from the base 1 that occurs later has the meaning of warning
2. And (3) anti-dismantling alarm strategy: under the condition that the anti-disassembly monitoring function is opened, if the smoke sensing shell 2 is screwed away by a person, the time for separating the smoke sensing shell 2 from the base 1 lasts for more than 5 seconds, and an alarm is triggered. The smoke alarm will generate audible and visual alarm, meanwhile, the wireless communication module inside the smoke sensing shell 2 uploads data to the cloud server, and the server will receive the anti-dismantling alarm information sent by the micro control unit immediately. The anti-dismantling alarm information uploaded to the cloud server contains detailed information of the smoke alarm, and monitoring personnel can process the anti-dismantling alarm of the smoke alarm of the station according to the information.
3. Silencing of anti-disassembly alarm: the smoke alarm is provided with a silencing button, the button can be pressed at the time of anti-disassembly alarm to eliminate the alarm, and the anti-disassembly monitoring function is always closed unless the smoke alarm is fixed with the base again. However, the sound attenuation operation cannot prevent the smoke alarm from making a sound of the anti-disassembly alarm information sent by the cloud server, that is, once the anti-disassembly alarm occurs, the cloud server end must receive the anti-disassembly alarm information of the smoke alarm.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. An anti-dismantling device of a smoke alarm base comprises a fixed base (1) fixedly arranged on a ceiling; unable adjustment base (1) surface lid be equipped with cigarette and feel shell (2), its characterized in that: a smoke sensor and a Hall switch (3) are arranged in the smoke sensing shell (2); a magnetic part (4) is arranged in the fixed base (1); the smoke sensor and the Hall switch (3) are respectively connected with the micro control unit; the Hall switch (3) outputs a low level or a high level to the micro control unit according to the relative distance of the magnetic part (4); the micro control unit is connected with an audible and visual alarm module.
2. A tamper evident device for a smoke alarm base as claimed in claim 1, wherein: a wireless communication module is arranged in the micro control unit; the micro control unit is connected with the server through a wireless communication module.
3. A tamper evident device for a smoke alarm base as claimed in claim 1, wherein: the magnetic part (4) is a strong magnet; a magnetic piece mounting hole groove (1.1) is formed in the fixed base (1).
4. A tamper evident device for a smoke alarm base as claimed in claim 3, wherein: the mounting hole grooves (1.1) comprise at least three; the mounting hole grooves (1.1) are uniformly distributed on the fixed base (1).
5. A tamper evident device for a smoke alarm base as claimed in claim 4, wherein: the included angle between each two mounting hole grooves (1.1) is 120 degrees; the magnetic part is embedded and fixed in the mounting hole groove.
6. A tamper evident device for a smoke alarm base as claimed in claim 1, wherein: the micro control unit is an MCU; the smoke sensing shell (2) is internally provided with a cavity for accommodating the smoke sensor, the Hall switch and the power supply.
7. A tamper evident device for a smoke alarm base as claimed in claim 1, wherein: the sound and light alarm module is provided with a silencing button.
8. The method of operating a tamper-evident device for a smoke alarm base as defined in claim 1, comprising the steps of:
s1, programming the microcontroller in advance, editing the level threshold value received by the microcontroller, and setting the level change during the first closing not to send an alarm and the smoke concentration threshold value received by the microcontroller;
s2, the smoke sensing shell and the fixed base are fixedly connected, at the moment, the level changes due to the fact that the magnetic piece and the Hall switch are close to each other for the first time, but at the moment, the micro control unit does not send an alarm;
s3, after the installation process of S2 is completed, the level detection function and the wireless communication module of the micro control unit are started, and if the smoke detector shell is separated from the fixed base, the micro control unit judges whether the separation duration exceeds the preset time;
s4, if the separation duration exceeds the preset time, the micro control unit sends alarm information to the server terminal through the wireless communication module and starts the sound and light alarm module;
and S5, after the sound and light alarm module is started, the sound and light alarm module can be closed through the silencing button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910973427.2A CN110599733A (en) | 2019-10-14 | 2019-10-14 | Anti-dismounting device for smoke alarm base and working steps thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910973427.2A CN110599733A (en) | 2019-10-14 | 2019-10-14 | Anti-dismounting device for smoke alarm base and working steps thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110599733A true CN110599733A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910973427.2A Pending CN110599733A (en) | 2019-10-14 | 2019-10-14 | Anti-dismounting device for smoke alarm base and working steps thereof |
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| Country | Link |
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| CN (1) | CN110599733A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236011A (en) * | 1991-06-20 | 1993-08-17 | Martin Marietta Energy Systems, Inc. | Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field |
| CN201820343U (en) * | 2010-10-20 | 2011-05-04 | 悉雅特楼宇自控(杭州)有限公司 | Anti-dismantling detection device for alarm device |
| CN103794023A (en) * | 2012-11-02 | 2014-05-14 | 北京计算机技术及应用研究所 | Low-power anti-dismantling alarm device |
| CN206038074U (en) * | 2016-08-31 | 2017-03-22 | 四川海力智能科技股份有限公司 | Gas table and alarm device is prevented tearing open by controller shell thereof |
| CN207895634U (en) * | 2018-01-16 | 2018-09-21 | 厦门城联科技有限公司 | A kind of device of anti-dismantling alarm and wireless awakening configuration based on hall device |
| CN208014112U (en) * | 2018-03-30 | 2018-10-26 | 无锡睿勤科技有限公司 | A kind of anti-theft device |
| CN208506933U (en) * | 2018-07-27 | 2019-02-15 | 浙江极智通信科技股份有限公司 | A kind of smoke alarm unit and system |
| CN210574183U (en) * | 2019-10-14 | 2020-05-19 | 浙江圣博创新科技有限公司 | Anti-dismounting device of smoke alarm base |
-
2019
- 2019-10-14 CN CN201910973427.2A patent/CN110599733A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236011A (en) * | 1991-06-20 | 1993-08-17 | Martin Marietta Energy Systems, Inc. | Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field |
| CN201820343U (en) * | 2010-10-20 | 2011-05-04 | 悉雅特楼宇自控(杭州)有限公司 | Anti-dismantling detection device for alarm device |
| CN103794023A (en) * | 2012-11-02 | 2014-05-14 | 北京计算机技术及应用研究所 | Low-power anti-dismantling alarm device |
| CN206038074U (en) * | 2016-08-31 | 2017-03-22 | 四川海力智能科技股份有限公司 | Gas table and alarm device is prevented tearing open by controller shell thereof |
| CN207895634U (en) * | 2018-01-16 | 2018-09-21 | 厦门城联科技有限公司 | A kind of device of anti-dismantling alarm and wireless awakening configuration based on hall device |
| CN208014112U (en) * | 2018-03-30 | 2018-10-26 | 无锡睿勤科技有限公司 | A kind of anti-theft device |
| CN208506933U (en) * | 2018-07-27 | 2019-02-15 | 浙江极智通信科技股份有限公司 | A kind of smoke alarm unit and system |
| CN210574183U (en) * | 2019-10-14 | 2020-05-19 | 浙江圣博创新科技有限公司 | Anti-dismounting device of smoke alarm base |
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