Wireless audio life detection system based on ad hoc network

Abstract

The embodiment of the utility model relates to a wireless audio life detection system based on an ad-hoc network, which uses a 2.4 G LORA module and a spread spectrum technology to enable wireless signals to bypass obstacles, so that the effective communication distance between a receiver and a host is increased to 850 meters; microseismic parameters are monitored in all directions, audio signals of the hosts are wirelessly listened through microseismic identification, the relative positions and orientations with the hosts are identified through positioning, audio talkback and recording broadcasting are also achieved, personnel can search and rescue conveniently, the receiver can display data sent by the multiple hosts through LORA in real time, and the standby time is long.

Description

Technical Field

[0001] The present application relates to the field of life detection technology, and in particular to a wireless audio life detection system based on an ad hoc network. Background Art

[0002] Audio life detectors utilize specialized microelectronic processors that can detect minute vibrations transmitted through air or solid objects. These devices are ideal for searching for survivors trapped beneath concrete, rubble, or other solid objects. They can accurately identify sounds such as shouting, clapping, scratching, or knocking. After a disaster, searching for survivors is a race against time. Life detectors can help rescuers locate survivors who are moving, knocking, or calling for help.

[0003] During the detection process of current audio life detection devices, wireless signals have difficulty bypassing obstacles, the effective communication distance between the receiver and the host is short, and the standby time is short. Utility Model Content

[0004] The purpose of this application is to provide a wireless audio life detection system based on an ad hoc network, which solves the technical problems that current audio search and rescue equipment is inconvenient for rapid positioning and has a short effective communication distance.

[0005] To achieve the above objectives, the present application provides a wireless audio life detection system, which includes a host and a receiver.

[0006] The host comprises a host main control chip (11), a micro-seismic identification circuit (12), a host LORA control circuit (13), an intercom control circuit (14), a recording control circuit (15), and a host positioning circuit (16);

[0007] The host main control chip (11) is respectively connected to the host LORA control circuit (13), the intercom control circuit (14), the recording control circuit (15) and the host positioning circuit (16);

[0008] The receiver includes a receiver main control chip (21), a receiver LORA control circuit (22), a power detection module (23), a display screen (24), a receiver power supply circuit (25), a mobile communication control circuit (26), a receiver intercom control circuit (27), and a receiver positioning circuit (28);

[0009] The receiver main control chip (21) is respectively connected to the receiver LORA control circuit (22), the power detection module (23), the display screen (24), the receiver power supply circuit (25), the mobile communication control circuit (26), the receiver intercom control circuit (27) and the receiver positioning circuit (28).

[0010] Furthermore, the host also includes an audio power amplifier circuit (17), and the audio power amplifier circuit (17) is connected to the intercom control circuit (14) and the recording control circuit (15) respectively.

[0011] Furthermore, the microseismic identification circuit (12) is composed of a microseismic sensor (121), a power detection unit (122), a microseismic amplification circuit (123) and a host power supply circuit (124).

[0012] Furthermore, the microseismic sensor (121) is connected to the microseismic amplifying circuit (123), and the power detection unit (122), the microseismic amplifying circuit (123) and the host power supply circuit (124) are respectively connected to the host main control chip (11).

[0013] Furthermore, the receiver intercom control circuit (27) is also connected to a receiver audio power amplifier circuit (29), and the receiver audio power amplifier circuit (29) is used to amplify the power of the receiver audio.

[0014] Furthermore, the host LORA control circuit (13) and the receiver LORA control circuit (22) are both connected using 2.4 GHz wireless communication.

[0015] Furthermore, the host LORA control circuit (13) and the receiver LORA control circuit (22) further include a spectrum spreading unit, which is used to expand spectrum communication and increase the effective communication distance.

[0016] Furthermore, the host positioning circuit (16) and the receiver positioning circuit (28) further include a GPS unit.

[0017] As can be seen from the above, the technical solution provided by this application uses a 2.4G LORA module and spread spectrum technology, which can enable wireless signals to bypass obstacles and increase the effective communication distance between the receiver and the host to 850 meters; it monitors microseismic parameters in all directions, listens to the host audio signal wirelessly through microseismic identification, and recognizes the relative position and orientation with the host through positioning, and also realizes audio intercom and recorded broadcasting, which facilitates search and rescue personnel; the receiver can display data sent by multiple hosts via LORA in real time; and the standby time is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a host of a wireless audio life detection system in an embodiment of the present application;

[0019] Figure 2 Schematic diagram of a receiver of a wireless audio life detection system in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0021] This utility model provides a wireless audio life detection system. Figures 1 to 2 A wireless audio life detection system includes a host and a receiver. The host includes a host main control chip 11 and a micro-seismic identification circuit 12, a host LORA control circuit 13, an intercom control circuit 14, a recording control circuit 15 and a host positioning circuit 16.

[0022] The host main control chip 11 is connected to the host LORA control circuit 13, the intercom control circuit 14, the recording control circuit 15 and the host positioning circuit 16 respectively.

[0023] The receiver includes a receiver main control chip 21 and a receiver LORA control circuit 22, a power detection module 23, a display screen 24, a receiver power supply circuit 25, a mobile communication control circuit 26, a receiver intercom control circuit 27, and a receiver positioning circuit 28.

[0024] For example, if a 4G chip is used, the mobile communication control circuit 26 is a 4G control circuit. Other mobile communication modes may also be used according to specific scenarios or situations.

[0025] Among them, the receiver main control chip 21 is respectively connected to the receiver LORA control circuit 22, the power detection module 23, the display screen 24, the receiver power supply circuit 25, the mobile communication control circuit 26, the receiver intercom control circuit 27 and the receiver positioning circuit 28.

[0026] Furthermore, the host also includes an audio power amplifier circuit 17, and the audio power amplifier circuit 17 is connected to the intercom control circuit 14 and the recording control circuit 15 respectively.

[0027] Furthermore, the microseismic identification circuit 12 is composed of a microseismic sensor 121 , a power detection unit 122 , a microseismic amplification circuit 123 and a host power supply circuit 124 .

[0028] Furthermore, the microseismic sensor 121 is connected to the microseismic amplifying circuit 123 , and the power detection unit 122 , the microseismic amplifying circuit 123 and the host power supply circuit 124 are respectively connected to the host main control chip 11 .

[0029] Furthermore, the receiver intercom control circuit 27 is also connected to a receiver audio power amplifier circuit 29, and the receiver audio power amplifier circuit 29 is used to amplify the power of the receiver audio.

[0030] Furthermore, the host LORA control circuit 13 and the receiver LORA control circuit 22 are both connected using 2.4 GHz wireless communication.

[0031] Furthermore, the host LORA control circuit 13 and the receiver LORA control circuit 22 also include a spectrum spreading unit, which is used to expand spectrum communication and increase the effective communication distance.

[0032] Furthermore, the host positioning circuit 16 and the receiver positioning circuit 28 also include a GPS unit.

[0033] In actual applications, the positioning circuits of the host and receiver are used to transmit positioning data to the receiver via LoRa self-organizing network technology. After an algorithm analyzes the GPS data of the host and receiver, the positioning information is displayed on the display screen through the receiver's main control chip, helping search and rescue personnel quickly locate the abnormal point and location.

[0034] The embodiment of the present utility model is intended to solve the problem that audio search and rescue equipment is inconvenient to locate quickly. The audio search and rescue equipment adopts a GPS positioning solution with high positioning accuracy and can quickly determine the direction and distance. The new generation of 2.4G LORA module can realize the rapid networking of the slave and the receiver; at the same time, the new generation of 2.4G LORA module and spread spectrum technology can enable the wireless signal to bypass obstacles, so that the effective communication distance between the receiver and the host is increased to 850 meters; all-round monitoring of microseismic parameters, wireless listening to the host audio signal through microseismic identification, and positioning identification of the relative position and orientation with the host, which can also realize audio intercom and recording broadcasting to facilitate personnel to conduct search and rescue; the receiver can display the data sent by multiple hosts through the LORA module in real time; the standby time of the entire system is greater than 12 hours.

[0035] The above description of the various embodiments of the present application is provided to those skilled in the art for the purpose of description. It is not intended to be exhaustive or to limit the present invention to a single disclosed embodiment. As mentioned above, the various substitutions and variations of the present application will be apparent to those skilled in the art of the above-mentioned technology. Therefore, although some alternative embodiments have been specifically discussed, other embodiments will be apparent, or those skilled in the art will find it relatively easy. The present application is intended to include all substitutions, modifications, and variations of the present invention discussed herein, as well as other embodiments falling within the spirit and scope of the above-mentioned application.

Claims

1. A wireless audio life detection system based on ad hoc network, characterized in that: The wireless audio life detection system includes a host and a receiver. The host comprises a host main control chip (11), a micro-seismic identification circuit (12), a host LORA control circuit (13), an intercom control circuit (14), a recording control circuit (15), and a host positioning circuit (16); The host main control chip (11) is respectively connected to the host LORA control circuit (13), the intercom control circuit (14), the recording control circuit (15) and the host positioning circuit (16); The receiver includes a receiver main control chip (21), a receiver LORA control circuit (22), a power detection module (23), a display screen (24), a receiver power supply circuit (25), a mobile communication control circuit (26), a receiver intercom control circuit (27), and a receiver positioning circuit (28); The receiver main control chip (21) is respectively connected to the receiver LORA control circuit (22), the power detection module (23), the display screen (24), the receiver power supply circuit (25), the mobile communication control circuit (26), the receiver intercom control circuit (27) and the receiver positioning circuit (28); The microseismic identification circuit (12) is composed of a microseismic sensor (121), a power detection unit (122), a microseismic amplification circuit (123) and a host power supply circuit (124); The microseismic sensor (121) is connected to the microseismic amplifying circuit (123), and the power detection unit (122), the microseismic amplifying circuit (123) and the host power supply circuit (124) are respectively connected to the host main control chip (11); The host LORA control circuit (13) and the receiver LORA control circuit (22) are both connected using 2.4 GHz wireless communication; The host LORA control circuit (13) and the receiver LORA control circuit (22) also include a spectrum spreading unit, which is used to expand spectrum communication and increase the effective communication distance.

2. The wireless audio life detection system according to claim 1, characterized in that: The host also includes an audio power amplifier circuit (17), and the audio power amplifier circuit (17) is connected to the intercom control circuit (14) and the recording control circuit (15) respectively.

3. The wireless audio life detection system according to claim 1, characterized in that: The receiver intercom control circuit (27) is also connected to a receiver audio power amplifier circuit (29), and the receiver audio power amplifier circuit (29) is used to amplify the power of the receiver audio.

4. The wireless audio life detection system according to claim 1, characterized in that: The host positioning circuit (16) and the receiver positioning circuit (28) also include a GPS unit.

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