CN215495298U - Dual alarm device - Google Patents

Abstract

The utility model discloses a double-alarm device, and belongs to the field of alarms. A dual alarm device comprising: the device comprises a vibration sensor, a distance measuring sensor, a controller, a buzzer and a camera; the vibration sensor and the distance measuring sensor are in signal connection with the controller; the controller can generate a final interrupt and detect the detection values of the vibration sensor and the distance measuring sensor in the interrupt process; the controller controls the opening and closing of the buzzer and the camera.

Description

Dual alarm device

Technical Field

The utility model relates to the field of alarms, in particular to a double alarm device.

Background

The alarm device is an important guarantee for guaranteeing property safety. The current common alarm devices have two triggering mechanisms: one is vibration alarm, namely when vibration with certain intensity around is detected, the alarm is triggered; the other is laser alarm, namely an infrared photoelectric switch detection system is utilized, and when infrared light is shielded, an alarm is triggered. The existing alarm system has the problem of single trigger mechanism, and due to the limitation of a detection mode, the situation of false alarm is easy to occur. In addition, the existing alarm has single function, such as the smoke alarm can only detect the smoke concentration, and can not detect other risk factors. Based on the current situation, a technology and a device with high detection precision and rich detection risk types are urgently needed in the existing alarm device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a double alarm device.

The purpose of the utility model can be realized by the following technical scheme:

a dual alarm device comprising: the device comprises a vibration sensor, a distance measuring sensor, a controller, a buzzer and a camera;

the vibration sensor and the distance measuring sensor are in signal connection with the controller; the controller can generate a final interrupt and detect the detection values of the vibration sensor and the distance measuring sensor in the interrupt process; the controller controls the opening and closing of the buzzer and the camera.

Optionally, the controller is an STM32 single chip microcomputer.

Optionally, the detection directions of the vibration sensor and the distance measuring sensor are arranged in an angle.

Optionally, the ranging sensor is configured as a VL53L0X laser ranging module.

Optionally, XSH, INT, SDA, SCL of the VL53L0X laser ranging module are respectively connected to PA4, PA15, PB10, PB11 pins of the STM32 single chip microcomputer.

Optionally, the STM32 single chip microcomputer is connected with a JTAG downloader.

Optionally, the system further comprises a communication module, the communication module is connected with the controller, and the communication module can transmit the image collected by the camera to a client.

Optionally, the communication module is a wireless communication module and can access a local area network where the user is located.

The utility model has the beneficial effects that:

the alarm device can realize double alarm and reduce the possibility of false alarm. Upon sounding an alarm, the camera module is activated, capturing and storing the target area at the set frequency. In addition, the vibration sensor is in a working state, and when abnormality is detected, the distance measuring sensor is started, so that power consumption is reduced.

Drawings

The utility model will be further described with reference to the accompanying drawings.

Fig. 1 is a flowchart of the operation of the apparatus.

Fig. 2 is a schematic diagram of the connection between the serial port and the single chip, in which one set of transmitting and receiving terminals is connected to pins PA9 and PA10 of the single chip, and the other set of transmitting and receiving terminals is connected to the computer through USB. The module is used for establishing communication between the single chip microcomputer and the computer.

Fig. 3 is a pin diagram of a camera module. The 3-18 pins are respectively connected to PD6, PD3, PG14, PG13, PG15, PC0, PC1, PC2, PC3, PC4, PC5, PC6, PC7, PB4, PA8 and PB3 of the single chip microcomputer.

Fig. 4 is a circuit configuration of an active buzzer. VCC and GND are connected to a power module of the development board, and the base electrode of the triode is connected to a PB8 pin of the singlechip through a 1K omega resistor.

Fig. 5 is a circuit structure diagram of the laser ranging module, wherein XSH, INT, SDA, SCL are respectively connected to pins PA4, PA15, PB10, PB11 of the single chip.

Fig. 6 shows a connection mode between the JTAG downloader and the single chip, in which the left active pin is connected to the PB4, PA15, PA13, PA14, and PB3 pins of the single chip in sequence. After connection, the program can be downloaded to the single chip microcomputer by configuring the simulation mode in the development environment.

Fig. 7 is a schematic diagram of the working structure of the alarm system.

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 description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean 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 utility model. 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.

In one example of the present invention, a dual alarm device is disclosed, comprising: the device comprises a vibration sensor, a distance measuring sensor, a controller, a buzzer and a camera; the vibration sensor and the distance measuring sensor are in signal connection with the controller; the controller can generate a final interrupt and detect the detection values of the vibration sensor and the distance measuring sensor in the interrupt process; the controller controls the opening and closing of the buzzer and the camera.

Specifically, as shown in fig. 1 and 7, the distance sensor detects the vibration, and when the vibration exceeds a preset value, the distance sensor intervenes in the detection, and the controller generates an interrupt, and during the interrupt, detects the detection data of the distance measuring sensor. And when the data is smaller than the preset value, triggering a buzzer to alarm. Thus, double alarming is realized, and the possibility of false alarming is reduced. Upon sounding an alarm, the camera module is activated, capturing and storing the target area at the set frequency. In addition, the vibration sensor is in a low power consumption state, and when the abnormality is detected, the distance measuring sensor is started, so that the power consumption is reduced. The distance measuring sensor can be a laser sensor and/or an ultrasonic distance measuring sensor.

Specifically, the detection directions of the vibration sensor and the distance measuring sensor are arranged at an angle, for example, 90 degrees, and the distances are measured from two directions respectively, so that the reliability of measurement is improved, and the influence of possible interference factors on the trigger mechanism is reduced.

In an example of the present invention, the alarm device further includes a communication module, the communication module is connected to the controller, and the communication module can transmit the image collected by the camera to a client. The user can check the state of the site on the client, so that the user can conveniently judge and dispose.

Specifically, the communication module is a wireless communication module and can access a local area network where the user is located.

In an example of the present invention, the communication module is in data connection with a computer, and specifically, the data connection may be through a USB data line or other wireless transmission manner.

In some examples of the utility model, the controller is an STM32 single chip microcomputer, as shown in FIGS. 2-6.

The ranging sensor is configured as a VL53L0X laser ranging module. XSH, INT, SDA and SCL of the VL53L0X laser ranging module are respectively connected to pins PA4, PA15, PB10 and PB11 of the STM32 single chip microcomputer.

The STM32 singlechip is connected with a JTAG downloader, and can download programs to the singlechip by configuring a simulation mode in a development environment.

The camera is configured to be an OV7725 camera module, and pins 3-18 of the OV7725 camera module are respectively connected to PD6, PD3, PG14, PG13, PG15, PC0, PC1, PC2, PC3, PC4, PC5, PC6, PC7, PB4, PA8 and PB3 of the STM32 singlechip.

Except the buzzer, all external equipment can be connected with the single chip microcomputer through any long flat cable, so that the flexibility and the application range of the device are increased. The active buzzer is provided with a 2.3K oscillation source, and can make a sound of 80dB under the driving of 3V voltage. The working parameters of the device can be specified by a user, and the user can set the threshold voltage of the vibration sensor by himself to adapt to different working environments.

The alarm of the above example of the present invention can be applied to detection of people, animals, objects, etc., or anti-theft alarm of doors, corridors, windows, etc., or alarm or prompt of materials and workpieces passing through a target area in industrial production.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (10)

1. A dual alarm device, comprising: the device comprises a vibration sensor, a distance measuring sensor, a controller, a buzzer and a camera;

the vibration sensor and the distance measuring sensor are in signal connection with the controller; the controller can generate a final interrupt and detect the detection values of the vibration sensor and the distance measuring sensor in the interrupt process; the controller controls the opening and closing of the buzzer and the camera.

2. The dual alarm device of claim 1, wherein the controller is an STM32 single chip microcomputer.

3. The dual alarm device of claim 1, wherein the detection directions of the vibration sensor and the distance measuring sensor are arranged at an angle.

4. The dual alarm device of claim 2, wherein the ranging sensor is configured as a VL53L0X laser ranging module.

5. The dual alarm device of claim 4, wherein XSH, INT, SDA, SCL of the VL53L0X laser ranging module are respectively connected to pins PA4, PA15, PB10, PB11 of the STM32 single chip microcomputer.

6. The dual alarm device of claim 2, wherein the STM32 singlechip is connected to a JTAG downloader.

7. The dual warning device of claim 1, further comprising a communication module connected to the controller, the communication module capable of transmitting images captured by the camera to a client.

8. The dual alarm device of claim 7, wherein the communication module is a wireless communication module and is capable of accessing a local area network where the user is located.

9. The dual warning device of claim 2, wherein the camera is configured as an OV7725 camera module, and 3-18 pins of the OV7725 camera module are respectively connected to PD6, PD3, PG14, PG13, PG15, PC0, PC1, PC2, PC3, PC4, PC5, PC6, PC7, PB4, PA8 and PB3 of the STM32 single chip microcomputer.

10. The dual alarm device of claim 1, further comprising a communication module for interfacing with a computer.

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