CN210904733U

CN210904733U - Automatic monitoring and tracking sound wave fire extinguisher

Info

Publication number: CN210904733U
Application number: CN201920803749.8U
Authority: CN
Inventors: 彭思诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-07-03
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses an automatic monitoring and tracking sound wave fire extinguisher, which comprises a control module and a mobile module, wherein the control module comprises a power supply, a control circuit, a signal generator and a power amplifier, the power supply is used for supplying power to the control module and the mobile module, and the control circuit controls the signal generator to send a signal to the power amplifier; the mobile module comprises a movable holder device, a temperature sensor for detecting the temperature of a detection area, a loudspeaker for converting a signal amplified by a power amplifier into sound waves and a sound gathering cover for gathering and emitting the sound waves emitted by the loudspeaker, the loudspeaker is electrically connected with the power amplifier and arranged on the holder device, the holder device is controlled by a control circuit, the temperature sensor is arranged on the holder device and electrically connected with the control circuit, and the sound gathering cover is sleeved on the loudspeaker; the device of the utility model can be applied and installed in places with limited open flame, and realizes fire extinguishment without water or powder.

Description

Automatic monitoring and tracking sound wave fire extinguisher

Technical Field

The utility model relates to a technical field puts out a fire, in particular to automatic sound wave fire extinguisher of control tracking.

Background

The sound wave fire extinguisher at the present stage is mainly carried by hand and even installed on an unmanned aerial vehicle. Such acoustic extinguishers require manual searching for the fire source and manual alignment of the acoustic generator with the fire source. Because the sound wave has the dispersibility, the sound wave fire extinguisher can not be far away from a fire source, otherwise, the fire extinguishing effect is greatly reduced after the sound wave energy is dispersed.

Disclosure of Invention

The to-be-solved technology of the utility model is to provide an automatic sound wave fire extinguisher of control tracking has the ability of automated inspection source of a fire (naked light) to aim at the source of a fire with the sound wave transmission mouth automatically, need not manual operation. The utility model discloses a gather sound cover can carry furthest's gathering together the sound wave, effectively improves the distance that the sound wave fire extinguisher was put out a fire, has further ensured equipment and personnel's safety.

In order to solve the technical problem, the utility model discloses a technical scheme does: the sound wave fire extinguisher capable of automatically monitoring and tracking is characterized by comprising a control module and a mobile module, wherein the control module comprises a power supply, a control circuit, a signal generator and a power amplifier, the power supply is used for supplying power to the control module and the mobile module, and the control circuit controls the signal generator to send a signal to the power amplifier;

the mobile module comprises a movable holder device, a temperature sensor, a loudspeaker and a sound gathering cover, wherein the temperature sensor is used for detecting the temperature of a detection area, the loudspeaker is used for converting signals amplified by the power amplifier into sound waves, the sound gathering cover is used for gathering and emitting the sound waves emitted by the loudspeaker, the loudspeaker is electrically connected with the power amplifier and is arranged on the holder device, the holder device is controlled by a control circuit, the temperature sensor is arranged on the holder device and is electrically connected with the control circuit, and the sound gathering cover is arranged on the loudspeaker in an adaptive mode.

Furthermore, the sound gathering cover is a conical hollow structure body and comprises an arc-shaped cover body and a straight-tube-shaped transmitting opening, wherein a first inner cavity of the transmitting opening is communicated with a second inner cavity of the cover body, and the transmitting opening is vertically connected to the top end of the cover body.

Furthermore, the transmitting opening comprises a first outer layer, a first inner layer and a first vacuum cavity formed by extending the head and the tail of the first outer layer and the first inner layer, and the cover body comprises a second outer layer, a second inner layer and a second vacuum cavity formed by extending the head and the tail of the second outer layer and the second inner layer.

Further, the cover body is kept away from the other end that the vertical connection has the transmission mouth and is equipped with the installation chimb that is used for with the speaker is fixed, the installation chimb is equipped with adaptation and speaker fixed mounting's mounting hole.

Further, the holder device is composed of a rotating motor and a camera, the temperature sensor is arranged in the camera, and the camera is arranged on the rotating motor.

Further, the rotating motor includes a horizontal rotating motor and a vertical rotating motor.

Further, the temperature sensor is an infrared temperature sensor.

Further, the frequency range of the sound wave emitted by the loudspeaker is 30 Hz-50 Hz.

Further, the frequency of the sound wave emitted by the loudspeaker is 40 Hz.

Compared with the prior art, the beneficial effects of the utility model are that.

(1) The utility model utilizes the vibration generated by the sound wave in the process of air transmission to compress the air for a while, so that the air becomes dense; air inflation for a moment becomes "sparse", the utility model discloses just compress and bulk effect to the air, lead to the change of the emergence period of oxygen concentration in the air, its result of bringing is exactly that oxygen density is inhomogeneous, can present density distribution, when the conflagration breaing out, the utility model discloses utilize this characteristic, can make the regional oxygen concentration of flame reduce to make flame disappear, realize putting out a fire at the oxygen deficiency stage.

(2) The utility model discloses a sound wave is equipped with infrared temperature sensor and automatic tracking's cloud platform device, can the automated inspection fire disaster to aim at the fire disaster with sound wave transmission mouth, remote transmission sound wave is put out a fire.

(3) The utility model discloses a device can be applied to install in the limited place to the naked light, realizes long-range naked light control to certain region to realize that anhydrous, no powder, pollution-free put out a fire, do not cause any harm to biology, the facility of the within range of control.

(4) The utility model provides a gather sound cover can effectively gather the sound wave, improves remote ability of putting out a fire.

Drawings

Fig. 1 is a schematic structural diagram of the functional modules of the present invention.

Fig. 2 is a schematic perspective view of the sound collecting cover of the present invention.

Fig. 3 is a sectional structural view of the sound collecting cover of the present invention.

Fig. 4 is a schematic view of the installation structure of the sound focusing cover and the speaker according to the present invention.

Fig. 5 is a diagram of the sound wave of the present invention.

In the figure:

the device comprises a control module 1, a mobile module 2, sound waves 4, a power supply 10, a control circuit 11, a signal generator 12, a power amplifier 13, a holder device 20, a temperature sensor 21, a loudspeaker 22, a sound gathering cover 23, a sealing ring 25, an arc line 26, a cover body 230, a transmitting opening 231, a through hole 250, a first mounting hole 220, a first inner cavity 2310, a second inner cavity 2311, a first outer layer 2312, a first inner layer 2313, a first vacuum cavity 2314, a second outer layer 2300, a second inner layer 2301, a second vacuum cavity 2304, a mounting flange 2302 and a mounting hole 2303.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the automatic monitoring and tracking sound wave fire extinguisher comprises a control module 1 and a mobile module 2, the control module 1 comprises a power supply 10, a control circuit 11, a signal generator 12 and a power amplifier 13, the power supply 10 is used for supplying power to the control module 1 and the mobile module 2, the control circuit 11 controls the signal generator 12 to send out a signal to the power amplifier 13, specifically, the control circuit 11 stores a program for controlling sound emission, stores wavelength data and frequency data required for sound emission, and the signal generator 12 generates an analog signal of low frequency sound wave after receiving the signal activated by the control circuit 11, the power amplifier 13 amplifies the low frequency acoustic wave analog signal generated by the signal generator 12 without distortion, and the amplified low frequency acoustic wave analog signal is received by the speaker 22, as will be understood by those skilled in the art. In addition, the control circuit 11 is an MSP430F133 single chip microcomputer, the MSP430F133 single chip microcomputer is also called a mixed signal processor, and the MSP430F133 single chip microcomputer integrates an analog circuit, a digital circuit module and a microprocessor into one chip.

The mobile module 2 comprises a movable holder device 20, a temperature sensor 21 for detecting the temperature of a detection area, a loudspeaker 22 for converting a signal amplified by the power amplifier 13 into a sound wave 4, and a sound gathering cover 23 for gathering and emitting the sound wave 4 emitted by the loudspeaker 22, wherein the loudspeaker 22 is electrically connected with the power amplifier 13 and is installed on the holder device 20, the holder device 20 is controlled by the control circuit 11, the temperature sensor 21 is installed on the holder device 20 and is electrically connected with the control circuit 11, and the sound gathering cover 23 is installed on the loudspeaker 22 in an adaptive manner. The frequency range of the sound wave emitted by the loudspeaker 22 is 30 Hz-50 Hz so as to meet the condition of low-frequency sound wave fire extinguishing.

Because the temperature sensor 21, the loudspeaker 22 and the sound gathering cover 23 are all installed on the holder device 20, namely the temperature sensor 21, the loudspeaker 22 and the sound gathering cover 23 can synchronously move along with the holder device 20, the fire source is monitored, the sound gathering cover 23 is aligned to the fire source, and the fire extinguisher is automatically detected and tracked to extinguish fire. In this embodiment, the pan/tilt head device 20 employs an electric pan/tilt head with a large-scale monitoring function, and is composed of a rotating motor and a camera, the temperature sensor 21 is disposed in the camera, and the camera is mounted on the rotating motor. The motorized pan and tilt head apparatus 20 is suitable for scanning and monitoring a wide range, and can expand the monitoring range of a camera. The electric pan-tilt device 20 is driven by two rotating motors, and the motors receive signals from the control circuit 11 to accurately operate and position. Under the control signal of the control circuit 11, the camera can either automatically scan and monitor the controlled area or track the monitored object under the control of the operator at the monitoring center. Specifically, the rotating motor includes a horizontal rotating motor and a vertical rotating motor, and the horizontal rotating motor and the vertical rotating motor can respectively drive the camera to rotate in the horizontal direction (i.e. swing left and right) and in the vertical direction (i.e. rotate up and down), which are collectively referred to as an omnidirectional pan/tilt head. The horizontal rotation angle of the horizontal rotation motor is 0 DEG to 350 DEG, the horizontal rotation speed is 3 DEG to 10 DEG/s, and the vertical rotation angle of the vertical rotation motor is +90 DEG, and the vertical rotation speed is 4 DEG/s. Because of the load, the torque of the vertical rotation motor is larger than the torque in the horizontal direction when the vertical rotation motor is started and kept running, and the requirement for the horizontal rotation speed is higher than the vertical rotation speed when the vertical rotation motor is actually monitored, the vertical rotation speed of the pan-tilt apparatus 20 is generally lower than the horizontal rotation speed. The operating voltages of the horizontal rotating motor and the vertical rotating motor determine the overall operating voltage of the pan/tilt head device 20, and generally include ac 24V, ac 220V, and dc 12V. When the vertical rotating motor is connected with the upper and lower action voltages, the vertical rotating motor rotates to drive the vertical driving wheel disc to rotate through the reduction box; when receiving the left and right action voltages, the horizontal rotating motor rotates and drives the horizontal gear plate at the bottom of the pan/tilt head device 20 to rotate through the reduction box, so as to realize the large-scale scanning and monitoring of the camera, as will be understood by those skilled in the art. It should be further explained here that the horizontal and vertical limit bolts are disposed on the pan/tilt head device 20, and the pan/tilt head device 20 is respectively provided with two micro switches to achieve the limit function. When the rotation angle reaches the preset limit bolt, the micro switch acts to cut off the power supply, and the holder device 20 stops rotating. The limiting device can be located outside the holder device 20, the adjusting process is simple, and the limiting device can also be located inside the holder device 20 and adjusted through an adjusting mechanism arranged outside.

In addition, the rotational angle, particularly the vertical rotational angle, of the pan/tilt head apparatus 20 has a large relationship with the load (shield/camera/lens assembly) mounting manner. The horizontal rotation angle of the pan-tilt device 20 can reach 355 ° in general, because the limit bolt occupies a certain angle, but a few monitoring dead angles occur. The utility model discloses a cloud platform device 20 has improved stop device and has made it can reach 360 or even 365 (have 5 cover angle) to eliminate the control dead angle. When the user uses the device, the user can carry out limit setting according to the actual situation on site. For example, in the wall-mounted type, even if the head unit 20 has a rotation angle of 360 °, only 180 ° of the front face of the head unit 20 needs to be monitored, and even if the head unit is rotated 180 ° in the rear direction, only the mounting surface (wall) can be seen, which makes no practical monitoring sense. Thus, the wall-mounted type only needs to monitor a range of 180 ° horizontally, and the angle-mounted type only needs to monitor a range of 270 °. This prevents the pan/tilt head device 20 from rotating too much to a position where monitoring is not required, and improves the utilization efficiency of the pan/tilt head device 20. The vertical rotation angle of the top-mounted holder device 20 is generally from +30 degrees to-90 degrees, the side-mounted vertical rotation angle can reach +/-180 degrees, and the vertical rotation angle can be from +20 degrees to-90 degrees in normal use. The user may select the wall-mounted or ceiling-mounted pan/tilt head device 20 according to the actual location, but is not limited to the above two mounting manners.

The temperature sensor 21 is fixed in the camera and used for finding and measuring the temperature of a fire source, the temperature sensor 21 converts the actually measured temperature data into an electric signal, and the signal generator 12 is controlled to send a signal or not through the electric signal, so that the purpose of automatically starting the signal generator 12 is achieved, timely rescuing and alarming can be effectively and timely performed on an object at the initial stage of fire, property loss is reduced, and personnel safety is protected. Specifically, the temperature sensor selects an MLX90616 thermopile infrared temperature sensor as a temperature control element, the element is suitable for high-temperature measurement, and the maximum measurable temperature is 1030 ℃.

As shown in fig. 2, 3 and 5, the sound gathering cover 23 is a conical hollow structure, and includes an arc-shaped cover 230 and a straight tubular emitting port 231, wherein a first inner cavity 2310 of the emitting port 231 is communicated with a second inner cavity 2311 of the cover 230, and the emitting port 231 is vertically connected to the top end of the cover 230; the emitting port 231 comprises a first outer layer 2312 and a first inner layer 2313, and a first vacuum cavity 2314 which is formed by the first outer layer 2312 and the first inner layer 2313 which are connected end to end in an extending way to form a seal, and the cover body 230 comprises a second outer layer 2300 and a second inner layer 2301, and a second vacuum cavity 2304 which is formed by the second outer layer 2300 and the second inner layer 2301 which are connected end to end in an extending way to form a seal; the other end of the cover body 230 far away from the vertical connection with the emitting port 231 is provided with an installation convex edge 2302 for fixing with the speaker 22, the installation convex edge 2302 is provided with an installation hole 2303 suitable for fixing and installing with the speaker 22, as shown in fig. 2, the installation hole 2303 is arranged on the installation convex edge 2302 around the axle center of the cover body 230, and for this embodiment, for tightly connecting the sound gathering cover 23 with the speaker 22 (shown in fig. 4), the installation holes 2303 are four, as the utility model discloses a further improvement, for sealing the connection position between the sound gathering cover 23 and the speaker 22, the connection position between the sound gathering cover 23 and the speaker 22 is provided with a sealing ring 25. Specifically, as shown in fig. 5, the seal ring 25 is first tightly attached to the mounting flange 2302 of the sound-collecting cover 23 such that the through hole 250 of the seal ring 25 is aligned with the mounting hole 2303, then the tightly attached sound-collecting cover 23 is fitted to the speaker 22 such that the mounting hole 2303 and the through hole 250 are aligned with the first mounting hole 220 of the speaker 22, and then the sound-collecting cover 23 is fixed to the speaker 22 by using bolts. I.e., to effect attachment of the enclosure 230 to the speaker 22. The emitting port 231 faces the monitoring area.

In order to clearly describe how the sound gathering cover 23 can achieve the fire extinguishing principle, the present specification first describes the specific structure of the sound gathering cover 23, and in the description, it is said that the first inner cavity 2310 of the emitting port 231 is communicated with the second inner cavity 2311 of the cover body 230, and the emitting port 231 is vertically connected to the top end of the cover body 230; the emitting port 231 comprises a first outer layer 2312 and a first inner layer 2313, and a first vacuum cavity 2314 which is formed by the first outer layer 2312 and the first inner layer 2313 which are connected end to end in an extending way to form a seal, and the cover body 230 comprises a second outer layer 2300 and a second inner layer 2301, and a second vacuum cavity 2304 which is formed by the second outer layer 2300 and the second inner layer 2301 which are connected end to end in an extending way to form a seal; specifically, as shown in fig. 3, the emitting opening 231 is extended from two ends of the first outer layer 2312 and folded inward, and is extended from two ends of the first inner layer 2313 and folded inward, and because two ends of the first outer layer 2312 are folded inward, the two ends of the first inner layer 2313 are also folded inward, as shown in fig. 3, so that the first outer layer 2312 and the first inner layer 2313 form a sealed space, and the space is the first vacuum cavity 2314 shown in fig. 3; similarly, second outer layer 2300 and second inner layer 2301 are formed into a sealed space, as second vacuum chamber 2304 is shown in FIG. 3. In other words, the first vacuum chamber 2314 and the second vacuum chamber 2304 are vacuum designed to effectively block the transmission of acoustic waves 4 through the cover 230, reducing energy losses. The sound collecting cover 23 is a hollow structure having a conical shape in order to increase the vibration intensity of the sound wave 4.

To describe more clearly how the utility model utilizes sound waves to extinguish fire, according to the fire extinguishing principle based on the distribution influence of sound waves on surrounding media and shown in fig. 5, because the cover body 230 is a conical hollow structure, the arc-shaped curved surface of the cover body 230 can focus the sound waves 4 generated by the loudspeaker 22 in the emitting port 231 through reflection, and then the sound waves are emitted from the emitting port 231 all the way outwards, thereby realizing the convergence of the energy of the sound waves 4. Specifically, when the sound waves 4 emitted from the speaker 22 vibrate in the air, the air is compressed for a while to become "dense", and the air is expanded for a while to become "sparse" so as to form a series of waves with sparse and dense changes, so that the vibration energy is transmitted, and the waves are called longitudinal waves. It is known that the propagation of sound wave is not the direct displacement of medium molecules, but the energy is expanded in the form of fluctuation, and the sound wave changes with the temperature change in the air, and the higher the temperature is, the sound wave can rapidly propagate to a high-temperature source, namely, the propagation is carried out when a fire source exists. Therefore, the utility model discloses just utilize this characteristic to put out a fire to the fire source, and produce this powerful sound wave and just utilize the utility model discloses a gather sound cover 23 and realize.

As shown in fig. 5, the arc line 26 at each position of the second inner layer 2301 of the sound gathering cover 23 can reflect the incident sound wave 4 in the parallel direction, and the reflected sound wave 4 is gathered at the emission port 231 and emitted out from the emission port 231 in a straight line, and for this embodiment, the frequency range of the sound wave emitted by the speaker 22 is a rectangular signal of 30Hz to 50Hz, preferably 40 Hz. In addition, the transmitting port 231 of the sound gathering cover 23 adopts a straight pipe design, so that the accuracy of aiming the fire source by the sound gathering cover 23 can be improved. As an improvement, a layer of fireproof material is arranged outside the sound gathering cover 23, and the fireproof material is used for ensuring that the sound gathering cover 23 is not burnt by fire when a fire disaster happens, so that the service life of the sound gathering cover 23 is prolonged.

The utility model discloses a theory of operation: the temperature sensor 21 is controlled by the control circuit 11, is in a normally energized state, and detects the temperature of the detection area. Once the temperature or flame above the alarm is detected, the control circuit 11 records the coordinates of the high temperature region and sends out a circumferential displacement command to control the pan/tilt head device 20 to rotate horizontally and vertically, so that the emitting port 231 of the sound-collecting cover 23 is aligned with the high temperature or flame coordinate region. Then the control circuit 11 also controls the signal generator 12 to emit a rectangular signal of 40Hz, then the signal is amplified without distortion through the power amplifier 13, and then the amplified signal is transmitted to the loudspeaker 22, the loudspeaker 22 receives the amplified signal and converts the amplified signal into sound waves 4, and the sound waves 4 are gathered and emitted through the sound gathering cover 23 which is aligned with a high temperature area or a flame area. The alternating conversion of the wave crest and the wave trough of the sound wave 4 generates the compression and expansion effects on the air, so that the oxygen concentration in the air is changed, the degree of combustion (oxidation reaction) of the fire source is reduced in the period of low oxygen concentration, the temperature is gradually lost, and finally the combustion (oxidation reaction) is stopped, thereby realizing the fire extinguishing.

To sum up, the utility model discloses a solution that automatic monitoring and tracking were put out a fire is provided to various occasions of forbidding naked light, and this fire extinguishing scheme is anhydrous, no powder, pollution-free moreover, can not cause the damage to any biology or equipment, furniture.

Claims

1. Automatic sound wave fire extinguisher of control tracking, its characterized in that: the power supply control system comprises a control module (1) and a mobile module (2), wherein the control module (1) comprises a power supply (10), a control circuit (11), a signal generator (12) and a power amplifier (13), the power supply (10) is used for supplying power to the control module (1) and the mobile module (2), and the control circuit (11) controls the signal generator (12) to send a signal to the power amplifier (13);

the mobile module (2) comprises a movable holder device (20), a temperature sensor (21) for detecting the temperature of a detection area, a loudspeaker (22) for converting a signal amplified by a power amplifier (13) into a sound wave (4) and a sound gathering cover (23) for gathering and transmitting the sound wave (4) emitted by the loudspeaker (22), wherein the loudspeaker (22) is electrically connected with the power amplifier (13) and is arranged on the holder device (20), the holder device (20) is controlled by a control circuit (11), the temperature sensor (21) is arranged on the holder device (20) and is electrically connected with the control circuit (11), and the sound gathering cover (23) is arranged on the loudspeaker (22) in an adaptive mode.

2. The automatic monitoring and tracking acoustic fire extinguisher of claim 1, wherein: the sound gathering cover (23) is a conical hollow structure body and comprises an arc-shaped cover body (230) and a straight tubular emitting opening (231), wherein a first inner cavity (2310) of the emitting opening (231) is communicated with a second inner cavity (2311) of the cover body (230) and the emitting opening (231) is vertically connected to the top end of the cover body (230).

3. The automatic monitoring and tracking acoustic fire extinguisher of claim 2, wherein: the emitting opening (231) comprises a first outer layer (2312), a first inner layer (2313) and a first vacuum cavity (2314) which is formed by connecting the first outer layer (2312) and the first inner layer (2313) in an end-to-end extending mode to form a seal, and the cover body (230) comprises a second outer layer (2300), a second inner layer (2301) and a second vacuum cavity (2304) which is formed by connecting the second outer layer (2300) and the second inner layer (2301) in an end-to-end extending mode to form a seal.

4. The automatic monitoring and tracking acoustic fire extinguisher of claim 3, wherein: the other end of the cover body (230) far away from the vertical connection with the emitting port (231) is provided with an installation convex edge (2302) used for being fixed with the loudspeaker (22), and the installation convex edge (2302) is provided with an installation hole (2303) matched with the loudspeaker (22) for fixed installation.

5. The automatic monitoring and tracking acoustic fire extinguisher of claim 1, wherein: the holder device (20) is composed of a rotating motor and a camera, the temperature sensor (21) is arranged in the camera, and the camera is arranged on the rotating motor.

6. The automatic monitoring and tracking acoustic fire extinguisher of claim 5, wherein: the rotation motor includes a horizontal rotation motor and a vertical rotation motor.

7. An automatic monitoring and tracking acoustic fire extinguisher according to any one of claims 1 to 6, wherein: the temperature sensor (21) is an infrared temperature sensor.

8. The automatic monitoring and tracking acoustic fire extinguisher of claim 7, wherein: the frequency range of the sound wave emitted by the loudspeaker (22) is 30 Hz-50 Hz.

9. The automatic monitoring and tracking acoustic fire extinguisher of claim 8, wherein: the frequency of the sound wave emitted by the loudspeaker (22) is 40 Hz.