CN106875634B - Alarm system - Google Patents

Abstract

The invention relates to an offshore undercurrent alarm system, which includes an undercurrent area detection device, a human body identification device, a main control device, a voice alarm device and a display device. The undercurrent area detection device is used to detect the undercurrent position on the offshore sea surface and output the location The area number of the sea surface area is used as the first number. The human body recognition device is used to perform human body recognition on the offshore sea surface image based on the image analysis mode, and output the area number of the sea surface area where the human body is located as the second number. The main control device is connected with the undercurrent area respectively. The detection device is connected with the human body recognition device, and is used for outputting an undercurrent alarm signal when the first number and the second number are repeated. Through the present invention, the alarm operation can be performed in time for the situation that the human body enters the undercurrent area on the offshore sea surface, thereby effectively avoiding the occurrence of marine accidents.

Description

alarm system

technical field

The invention relates to the field of maritime monitoring, in particular to an alarm system.

Background technique

The offshore area is the main place for people to go to the beach. Especially for the beach, swimming in the offshore, enjoying the impact of the waves on the body, and feeling the vastness of nature is an unforgettable sport.

However, when playing in the offshore area, if there is an undercurrent and the human body is in the position of the undercurrent, the undercurrent can easily lead people into the deep sea area and fall into a state of helplessness. The speed of the undercurrent is so high that it is impossible to swim sideways. If tourists are experienced and able to keep calm, they can swim with the water to the back of Liutou, and then swim to both sides. Swimming back with the help of the waves is also a way. If you are already in an undercurrent, first of all, don't think about swimming back to the shore. What you can do is to swim in a direction parallel to the coastline. This is the only way to save yourself.

In fact, there are very few tourists with such rich experience. Most of them are frightened by unexpected situations and swim desperately to the shore. However, because the speed in the undercurrent is faster than people's swimming speed, not only is there no effect, but also a lot of energy is wasted. In the prior art, there is no alarm mechanism for undercurrents around the offshore area.

Contents of the invention

In order to solve the above problems, the present invention provides an offshore undercurrent alarm system, which can accurately identify the human body in the offshore area, accurately identify the undercurrent in the offshore area, and when the identified human body is located in the identified undercurrent area, according to the human body The distance from the coast is sent to the police, so as to provide tourists with undercurrent warning, and also save the response time for the rescue of relevant departments.

According to one aspect of the present invention, an offshore undercurrent alarm system is provided. The system includes an undercurrent area detection device, a human body recognition device, a main control device, a voice alarm device, and a display device. The undercurrent area detection device is used to detect The location of the undercurrent, and output the area number of the sea surface area where the undercurrent location is located as the first number, the human body recognition device is used to perform human identification on the offshore sea surface image based on the image analysis mode, and output the area number of the sea surface area where the human body is located as the second number number, the main control device is connected with the undercurrent area detection device and the human body recognition device respectively, and is used to output an undercurrent alarm signal when the first number and the second number are repeated, and output an undercurrent alarm signal when there is no repeated first number and second number. Safety reminder signal, the voice alarm device is connected with the main control device, used to receive the undercurrent alarm signal to play the voice warning content corresponding to the undercurrent alarm signal, and the display device is connected to the main control device, used to receive the undercurrent alarm signal to display and undercurrent alarm The text warning content corresponding to the signal.

More specifically, in the offshore undercurrent alarm system, it also includes: an MMC storage device, used for pre-storing the graphic features of the undercurrent, the upper gray threshold of the human body and the lower gray threshold of the human body; a wireless communication device connected to the main control device, It is used to receive the undercurrent alarm signal and wirelessly forward the undercurrent alarm signal to the maritime monitoring department; wherein, the MMC storage device, the wireless communication device and the main control device are integrated in the same on-chip chip.

More specifically, in the offshore undercurrent warning system, it also includes:

The area division equipment is used to divide the sea surface area of the offshore sea surface. Each divided sea surface area has a unique area number. All the sea surface areas form the offshore sea surface. The division of the offshore sea surface area specifically includes: based on The radian of the coastline divides the sea surface area of the offshore sea surface; the spherical camera equipment is used to collect panoramic image data on the offshore sea surface to obtain panoramic offshore images; the signal analysis equipment is connected with the spherical camera equipment to perform noise on the panoramic offshore images Analysis to obtain each noise type and the noise amplitude level corresponding to each noise;

Signal denoising equipment, connected with signal analysis equipment, used to receive panoramic offshore images, various noise types and noise amplitude levels corresponding to each type of noise, and when the noise amplitude level is greater than the preset level threshold, the corresponding noise type is used as the target Noise type, set the denoising priority of each target noise type in sequence based on the noise amplitude level of each target noise type, and perform corresponding denoising processing on the panoramic offshore image in turn according to the denoising priority of each target noise type, and obtain denoising noisy panoramic image;

The undercurrent area detection device is respectively connected with the MMC storage device and the signal denoising device, and is used to match and segment the undercurrent sub-image in the denoising panoramic image based on the undercurrent graphic feature, and to denoise the panoramic image based on the undercurrent sub-image. The relative position in determines the corresponding undercurrent position, and determines and outputs the area number of the sea surface area where the corresponding undercurrent position is located as the first number based on the division result of the area division device;

The human body recognition device is respectively connected with the MMC storage device and the signal denoising device, and is used to sequentially perform edge enhancement processing and grayscale processing on the denoising panoramic image to obtain a grayscale panoramic image. The human body sub-image in the gray-scale panoramic image is determined and segmented based on the human body sub-image and the lower limit gray-scale threshold of the human body, and the corresponding human body position is determined based on the relative position of the human body sub-image in the gray-scale panoramic image, based on the area division device The division result determines and outputs the area number of the sea surface area where the corresponding human body position is located as the second number, and also determines the distance of the corresponding human body target from the coastline based on the corresponding human body position as the target distance output;

The main control device is also used to compare the target distance of the human target corresponding to the first number with repeated numbers with the preset distance threshold when outputting the undercurrent alarm signal, and when the target distance is greater than or equal to the preset distance threshold, Send out an emergency rescue signal and output the target distance and the corresponding first number at the same time;

Wherein, there are one or more undercurrent sub-images, one or more corresponding first numbers, one or more human body sub-images, and one or more corresponding second numbers.

More specifically, in the offshore undercurrent alarm system: the wireless communication device is also used to transmit the emergency rescue signal through the wireless communication link when the main control device sends the emergency rescue signal and simultaneously outputs the target distance and the corresponding first number , the target distance and the corresponding first number are wirelessly forwarded to the maritime monitoring department at the same time.

More specifically, in the offshore undercurrent alarm system: the voice alarm device is also used to play the emergency signal and the target number when the main control device sends out the emergency rescue signal and simultaneously outputs the target distance and the corresponding first number The voice warning content corresponding to the distance and the corresponding first number.

More specifically, in the offshore undercurrent alarm system: the display device is also used to respectively display the emergency rescue signal and the target distance when the main control device sends out the emergency rescue signal and simultaneously outputs the target distance and the corresponding first number. And the text warning content corresponding to the corresponding first number.

More specifically, in the offshore undercurrent alarm system: the MMC storage device is also used to pre-store a preset distance threshold, and the MMC storage device is connected to the main control device.

Description of drawings

Embodiments of the present invention will be described below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a structural block diagram of an offshore undercurrent warning system according to an embodiment of the present invention.

Reference signs: 1 Undercurrent area detection equipment; 2 Human body recognition equipment; 3 Main control equipment; 4 Voice alarm equipment; 5 Display equipment

Detailed ways

The embodiment of the offshore undercurrent warning system of the present invention will be described in detail below with reference to the accompanying drawings.

At present, the undercurrent detection mechanism in offshore areas is relatively rough, relying on human experience to judge, or analyzing through a single parameter, the detection results are not accurate. In fact, when there are no tourists swimming in the undercurrent area, there is no undercurrent detection in the offshore area. necessary.

In order to overcome the above-mentioned shortcomings, the present invention builds an offshore undercurrent alarm system, which can combine the detection of offshore undercurrent and the identification of tourists' human bodies, and only when it is recognized that the tourist's body is near the undercurrent area, the alarm will be issued, and the distance between the tourist's body and the coast The distance of the alarm determines the content of the alarm, thereby ensuring the personal safety of tourists swimming in the sea.

Fig. 1 is the structural block diagram of the offshore undercurrent alarm system shown according to the embodiment of the present invention, and described system comprises undercurrent area detection equipment, human body recognition equipment, master control equipment, voice alarm equipment and display equipment, and undercurrent area detection equipment is used for detecting The position of the undercurrent on the offshore sea surface, and output the area number of the sea surface area where the undercurrent position is located as the first number. as the second number;

Among them, the main control device is respectively connected with the undercurrent area detection device and the human body recognition device, and is used to output an undercurrent alarm signal when the first number and the second number overlap, and output an undercurrent alarm signal when there is no repeated first number and second number. Safety reminder signal, the voice alarm device is connected with the main control device, used to receive the undercurrent alarm signal to play the voice warning content corresponding to the undercurrent alarm signal, and the display device is connected to the main control device, used to receive the undercurrent alarm signal to display and undercurrent alarm The text warning content corresponding to the signal.

Next, continue to further describe the specific structure of the offshore undercurrent warning system of the present invention.

The offshore undercurrent alarm system may also include: an MMC storage device for pre-storing the undercurrent graphic features, the upper limit gray threshold of the human body and the lower gray threshold of the human body; a wireless communication device connected to the main control device for receiving the undercurrent alarm The signal can be used to wirelessly forward the undercurrent alarm signal to the maritime monitoring department; wherein, the MMC storage device, wireless communication device and main control device are integrated in the same on-chip chip.

The offshore undercurrent warning system may also include:

The area division equipment is used to divide the sea surface area of the offshore sea surface. Each divided sea surface area has a unique area number. All the sea surface areas form the offshore sea surface. The division of the offshore sea surface area specifically includes: based on The radian of the coastline divides the sea surface area of the offshore sea surface; the spherical camera equipment is used to collect panoramic image data on the offshore sea surface to obtain panoramic offshore images; the signal analysis equipment is connected with the spherical camera equipment to perform noise on the panoramic offshore images Analysis to obtain each noise type and the noise amplitude level corresponding to each noise;

Signal denoising equipment, connected with signal analysis equipment, used to receive panoramic offshore images, various noise types and noise amplitude levels corresponding to each type of noise, and when the noise amplitude level is greater than the preset level threshold, the corresponding noise type is used as the target Noise type, set the denoising priority of each target noise type in sequence based on the noise amplitude level of each target noise type, and perform corresponding denoising processing on the panoramic offshore image in turn according to the denoising priority of each target noise type, and obtain denoising noisy panoramic image;

The undercurrent area detection device is respectively connected with the MMC storage device and the signal denoising device, and is used to match and segment the undercurrent sub-image in the denoising panoramic image based on the undercurrent graphic feature, and to denoise the panoramic image based on the undercurrent sub-image. The relative position in determines the corresponding undercurrent position, and determines and outputs the area number of the sea surface area where the corresponding undercurrent position is located as the first number based on the division result of the area division device;

The human body recognition device is respectively connected with the MMC storage device and the signal denoising device, and is used to sequentially perform edge enhancement processing and grayscale processing on the denoising panoramic image to obtain a grayscale panoramic image. The human body sub-image in the gray-scale panoramic image is determined and segmented based on the human body sub-image and the lower limit gray-scale threshold of the human body, and the corresponding human body position is determined based on the relative position of the human body sub-image in the gray-scale panoramic image, based on the area division device The division result determines and outputs the area number of the sea surface area where the corresponding human body position is located as the second number, and also determines the distance of the corresponding human body target from the coastline based on the corresponding human body position as the target distance output;

The main control device is also used to compare the target distance of the human target corresponding to the first number with repeated numbers with the preset distance threshold when outputting the undercurrent alarm signal, and when the target distance is greater than or equal to the preset distance threshold, Send out an emergency rescue signal and output the target distance and the corresponding first number at the same time;

Wherein, there are one or more undercurrent sub-images, one or more corresponding first numbers, one or more human body sub-images, and one or more corresponding second numbers.

In the offshore undercurrent alarm system: the wireless communication device is also used to send the emergency rescue signal, the target distance and And the corresponding first number is wirelessly forwarded to the maritime monitoring department at the same time.

In the offshore undercurrent alarm system: the voice alarm device is also used to play the emergency rescue signal, the target distance and the corresponding The voice warning content corresponding to the first number.

In the offshore undercurrent alarm system: the display device is also used to display the emergency rescue signal, the target distance and the corresponding first number when the main control device sends out the emergency rescue signal and simultaneously outputs the target distance and the corresponding first number. The text warning content corresponding to the number.

In the offshore undercurrent alarm system: the MMC storage device is also used to pre-store the preset distance threshold, and the MMC storage device is connected to the main control device.

In addition, the signal denoising device sequentially performs corresponding denoising processing on the panoramic offshore image according to the denoising priority of each target noise type, and obtaining the denoising panoramic image includes using various wavelet filters according to the denoising Noise priority performs corresponding denoising processing on the panoramic offshore image sequentially to obtain a denoising panoramic image.

The term wavelet (Wavelet), as the name suggests, "wavelet" is a small waveform. The so-called "small" means that it has attenuation; the term "wave" means its volatility, and its amplitude is positive and negative. Compared with the Fourier transform, the wavelet transform is a localized analysis of time (space) frequency. It gradually refines the signal (function) on multiple scales through stretching and translation operations, and finally achieves time subdivision at high frequencies and frequency subdivision at low frequencies. , can automatically adapt to the requirements of time-frequency signal analysis, so that it can focus on any details of the signal, solve the difficult problem of Fourier transform, and become a major breakthrough in scientific methods since Fourier transform. Some people call wavelet transform "mathematical microscope".

The application of wavelet analysis is closely combined with the theoretical research of wavelet analysis. He has made remarkable achievements in the field of science and technology information industry. Electronic information technology is an important field among the six high-tech fields, and its important aspect is image and signal processing. Today, signal processing has become an important part of contemporary scientific and technological work. The purpose of signal processing is: accurate analysis, diagnosis, code compression and quantization, fast transmission or storage, and accurate reconstruction (or recovery). From a mathematical point of view, signal and image processing can be regarded as signal processing (image can be regarded as a two-dimensional signal), and many applications of wavelet analysis can be attributed to signal processing problems. For signals whose properties are stationary over time, the ideal tool for processing remains Fourier analysis. But most of the signals in practical applications are unsteady, and the tool that is especially suitable for unsteady signals is wavelet analysis.

Adopting the offshore undercurrent alarm system of the present invention, aiming at the technical problem of difficult detection and alarm of offshore undercurrent in the prior art, by accurately analyzing and identifying the shape of the undercurrent in the offshore area and the characteristics of the human body, the offshore undercurrent alarm information is issued when there is a human body in the undercurrent area , thereby solving the above-mentioned technical problems.

It can be understood that although the present invention has been disclosed above with preferred embodiments, the above embodiments are not intended to limit the present invention. For any person skilled in the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or be modified into equivalent changes, etc. effective example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, which do not deviate from the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims (1)

1. a kind of coastal waters undercurrent alarm system, which is characterized in that including：

Undercurrent equipment for area detection equipment, human bioequivalence equipment, main control device, audio alert equipment and display equipment, the inspection of undercurrent region Measurement equipment is used to detect undercurrent position in offshore sea, and the zone number of water area where exporting undercurrent position using as First number, human bioequivalence equipment is used to carry out human bioequivalence to offshore sea image based on image analysis mode, and exports people The zone number of water area where body is using as the second number, main control device is known with undercurrent equipment for area detection equipment and human body respectively Other equipment connection, for when the first number is repeated with the second number, exporting undercurrent alarm signal, there is no first repeated When number and the second number, output safety standby signal, audio alert equipment is connect with main control device, for receiving undercurrent alarm To play phonetic warning content corresponding with undercurrent alarm signal, display equipment is connect signal with main control device, dark for receiving Stream alarm signal is to show that word corresponding with undercurrent alarm signal warns content；

MMC storage devices, for prestoring undercurrent graphic feature, human body upper limit gray threshold and human body lower limit gray threshold；

Wireless telecom equipment is connect with main control device, for receiving undercurrent alarm signal with by undercurrent alarm signal wireless forwarding To maritime affairs supervision department；

Wherein, MMC storage devices, wireless telecom equipment and main control device are integrated in same on piece chip；

Region division equipment, the division for carrying out water area to offshore sea, each water area marked off has There are one unique zone number, all water areas form offshore sea, and the division of water area is carried out to offshore sea It specifically includes：The division of water area is carried out to offshore sea based on the radian in coastline；

Spherical shooting equipment, for carrying out panoramic image data acquisition to offshore sea to obtain panorama coastal waters image；

Signal analysis equipment is connect with spherical shooting equipment, each to obtain for carrying out noise analysis to panorama coastal waters image Noise type and the corresponding noise amplitude grade of each noise；

Signal denoising equipment, connect with signal analysis equipment, for receiving panorama coastal waters image, each noise type and each The corresponding noise amplitude grade of kind noise makees corresponding noise type when noise amplitude grade is more than predetermined level threshold value For target noise type, each target noise class is arranged in the noise amplitude grade size order based on each target noise type The denoising priority of type executes panorama coastal waters image according to the denoising priority of each target noise type and goes accordingly successively It makes an uproar processing, obtains denoising panoramic picture；

The undercurrent equipment for area detection equipment is connect with the MMC storage devices and the signal denoising equipment respectively, for being based on Undercurrent graphic feature matches and is partitioned into the undercurrent subgraph in denoising panoramic picture, based on undercurrent subgraph in denoising panorama sketch Relative position as in determines corresponding undercurrent position, and and output pair determining based on the division result of the region division equipment The zone number of water area where the undercurrent position answered as first to number；

The human bioequivalence equipment is connect with the MMC storage devices and the signal denoising equipment respectively, for complete to denoising Scape image carries out edge enhancing processing and gray processing processing successively, obtains gray processing panoramic picture, is based on human body upper limit gray scale threshold Value and human body lower limit gray threshold is determining and the human body subgraph that is partitioned into gray processing panoramic picture, is existed based on human body subgraph Relative position in gray processing panoramic picture determines corresponding position of human body, and the division result based on the region division equipment is true The zone number of water area is as the second number, to be also based on corresponding human body position where determining and exporting corresponding position of human body It sets and determines distance of the corresponding human body target apart from coastline to be exported as target range；

The main control device is additionally operable to when exporting undercurrent alarm signal, and the first number that situation is repeated there will be number is corresponding The target range of human body target and pre-determined distance threshold value comparison are sent out when the target range is more than or equal to pre-determined distance threshold value Emergency relief signal simultaneously exports the target range and corresponding first number simultaneously；

Wherein, undercurrent subgraph is one or more, corresponding first number be it is one or more, human body subgraph be one or Multiple, corresponding second number is one or more；

Wireless telecom equipment is additionally operable to send out emergency relief signal in main control device and exports the target range and correspondence simultaneously The first number when, by radio communication link by emergency relief signal, the target range and it is corresponding first number simultaneously Wireless forwarding gives maritime affairs supervision department；

Audio alert equipment is additionally operable to send out emergency relief signal in main control device and exports the target range and correspondence simultaneously The first number when, play respectively and emergency relief signal, the target range and the corresponding voice police of corresponding first number Show content；

Display equipment is additionally operable to send out emergency relief signal in main control device and export simultaneously the target range and corresponding the When one number, display respectively is numbered with emergency relief signal, the target range and corresponding first in corresponding word warning Hold；

MMC storage devices are additionally operable to prestore pre-determined distance threshold value, and MMC storage devices are connect with main control device.