CN220873098U - Non-contact type fire scene survivor search and rescue device - Google Patents
Non-contact type fire scene survivor search and rescue device Download PDFInfo
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- CN220873098U CN220873098U CN202322227923.8U CN202322227923U CN220873098U CN 220873098 U CN220873098 U CN 220873098U CN 202322227923 U CN202322227923 U CN 202322227923U CN 220873098 U CN220873098 U CN 220873098U
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Abstract
The utility model provides a non-contact fire scene survivor search and rescue device, which comprises a smoke alarm module, a millimeter wave radar module, a data processing unit and a wireless module, wherein the smoke alarm module is connected with the millimeter wave radar module; the smoke alarm is connected with the data processing unit and is used for detecting whether smoke appears in the environment and triggering alarm information to the data processing unit, and the data processing unit can send a starting signal to the millimeter wave radar module after receiving the smoke alarm information; the millimeter wave radar module starts human body existence monitoring work after receiving the starting signal sent by the data processing unit, and the data processing unit is used for analyzing the signals of the millimeter wave radar and acquiring information of whether the human body exists or not and azimuth distance information. And uploading the data to the cloud platform through the wireless module and sending the data to the mobile terminal. The system is installed in a room and has the advantages of being not easy to be disturbed by smoke, helping rescue to accurately position, reducing the complexity of the system, saving energy and reducing emission and being started only in case of fire.
Description
Technical Field
The utility model relates to the technical field of radar monitoring vital signs, in particular to a non-contact type fire scene survivor search and rescue device.
Background
Fire has become one of the more and more important problems in the present age, and the most feared fire is not fire but dense smoke. The dense smoke not only produces great threat to the personal safety of the trapped person, but also makes it difficult for the firefighter to directly judge the specific position of the trapped person under the condition, so that the rescue speed of the firefighter is very influenced, and even great threat is caused to the safety of the firefighter. The individual smoke alarms can only realize the smoke alarm function, and the specific position of the survivor cannot be determined.
Thus helping firefighters to determine the location of trapped personnel at a fire becomes a current research hotspot.
Many places still use cameras to detect vital signs of survivors in fire scene and determine the positions and the number of survivors, the cameras can display the existence positions of personnel in real time, but dense smoke easily blocks the cameras to influence judgment, and privacy-violations can exist in some privacy-conscious rooms such as bedrooms and toilets.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a non-contact type fire scene survivor search and rescue device which is not easy to be disturbed by smoke, is started only in the case of fire, helps rescue to accurately locate and reduces the complexity of a system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a non-contact fire scene survivor search and rescue device comprises a smoke alarm module, a data processing unit, a millimeter wave radar module, a wireless module, a cloud platform and a mobile terminal;
The smoke alarm module is connected with the data processing unit and is used for detecting whether smoke appears in the environment and triggering alarm information;
the millimeter wave radar module is connected with the data processing unit and is used for judging whether a human body exists or not and monitoring the azimuth distance according to triggered alarm information;
The cloud platform is connected with the data processing unit through the wireless module and is used for sending information of the existence of a human body and azimuth distance information to the cloud platform, and the equipment can acquire alarm information of other equipment from the cloud platform and display the alarm information in the OLED screen;
And pushing the acquired information to the mobile terminal by the cloud platform.
The millimeter wave radar module comprises a signal transmitting module, a binary power divider, a mixer, a signal processing module, a transmitting antenna and a receiving antenna;
The signal transmitting module is connected with the data processing unit and is associated with the smoke alarm module, and is used for triggering the transmitting module to work according to the smoke alarm information;
the signal transmitting module is connected with a two-way power divider which is respectively connected with a transmitting antenna and a mixer and is used for dividing a transmitting signal into two ways, wherein a first way of signal is transmitted through the transmitting antenna, and a second way of signal is transmitted to the mixer;
the input side of the mixer is also connected with a receiving antenna, and the receiving antenna is used for receiving a first path of signals and sending the first path of signals to the mixer;
the output side of the mixer is connected with a data processing unit, and the data processing unit is used for analyzing the signals processed by the mixer and obtaining information of existence of a human body and azimuth distance information.
The signal transmitting module comprises an operational amplifier and a voltage-controlled oscillator, wherein the data processing unit is connected with the operational amplifier and used for amplifying the generated alternating voltage signal, and the operational amplifier is connected with the voltage-controlled oscillator and used for converting the amplified alternating voltage signal into a millimeter wave signal with a preset frequency band.
The millimeter wave radar module is an FMCW radar system.
The model of the wireless module is NB-IOT (BC 35-G) module.
Based on the above, the frequency band of the millimeter wave signal output by the voltage-controlled oscillator is 24GHz.
And the data processing unit is connected with the OLED display screen and is used for displaying trigger information of all devices in the same network.
Compared with the prior art, the utility model has substantial characteristics and progress, and in particular has the following advantages:
1. The smoke alarm is combined with the millimeter wave radar system, the characteristics that the millimeter wave radar system can monitor vital sign signals of a human body are utilized, after the smoke alarm triggers and alarms, the millimeter wave radar system is started to detect whether survivors exist in the current environment or not, and the current azimuth information of the survivors is determined, and as the radar system is not easy to be interfered by smoke, the positioning stability and the positioning accuracy are higher compared with those of a camera.
2. The alarm signal of the smoke alarm is used as a starting signal of the radar system, and is not started in daily life, so that on one hand, the power consumption is saved, and on the other hand, the privacy safety of surrounding personnel is protected. The fire fighter can be helped to quickly find the position of the survivor when the fire fighter is started, and the survivor can be helped to find a better escape route or wait for rescue in a relatively safe position.
3. The requirements on light rays are much lower than those of the cameras when the radar system is installed, the system complexity under the fire disaster condition is reduced, and the system is more suitable for fire disaster condition monitoring under different living production environments.
Drawings
FIG. 1 is a schematic diagram of a non-contact fire survivor search and rescue apparatus according to the present utility model.
Fig. 2 is a schematic structural diagram of a millimeter wave radar module in the present utility model.
Fig. 3 is a schematic circuit diagram of the data processing unit MCU of the present utility model.
Fig. 4 is a schematic diagram of the circuit connection of the millimeter wave radar module of the present utility model.
Fig. 5 is a schematic diagram of the circuit connections of the smoke alarm module of the present utility model.
Fig. 6 is a schematic circuit diagram of a power conversion circuit according to the present utility model.
Fig. 7 is a schematic circuit diagram of the communication download module interface in the present utility model.
Fig. 8 is a schematic circuit diagram of a debug interface in accordance with the present utility model.
Fig. 9 is a schematic circuit diagram of a key part in the present utility model.
Fig. 10 is a schematic circuit diagram of a wireless module according to the present utility model.
In the figure: 1. a smoke alarm module; 2. a millimeter wave radar module; 3. a data processing unit; 4. a wireless module; 5. a cloud platform; 6. a mobile terminal;
11. An operational amplifier; 12. a voltage controlled oscillator; 13. a second power divider; 14. a transmitting antenna; 15. a mixer; 16. and a receiving antenna.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in fig. 1-10, a non-contact fire scene survivor search and rescue device comprises a smoke alarm module 1, a millimeter wave radar module 2, a data processing unit 3, a wireless module 4, a cloud platform 5 and a corresponding APP developed based on a mobile terminal 6.
The smoke alarm 1 is connected with the data processing unit 3 and is used for detecting whether smoke appears in the environment and triggering alarm information to the data processing unit 3, and if the smoke appears in the environment, the data processing unit 3 can send a starting signal for starting the radar system to the millimeter wave radar module 2; the millimeter wave radar module is internally provided with an MCU controller for receiving the command and controlling the signal transmission, and in the embodiment, the signal frequency band is set to be 24GHz.
The data processing unit 3 extracts the signals processed by the mixer in the millimeter wave radar module 2 to obtain specific azimuth and distance information of the human body, and meanwhile, the wireless module 4 is connected to report the azimuth and distance information of the human body to the cloud platform 5 through Mqtt protocol, the model of the wireless module is an NB-IOT (BC 35-G) module, and the data processing unit 3 can send whether the current equipment triggers smoke alarm information to other equipment on the same platform or not and display the smoke alarm triggering information of the same network equipment on an OLED screen of the data processing unit 3. Meanwhile, the cloud platform 5 can also send instructions to the data processing unit 3 and then send commands through the data processing unit 3 to control the radar module 2 to perform radar parameter configuration.
The APP with the corresponding function is correspondingly installed on the mobile terminal 6, and the visual processing of the data on the APP is carried out by acquiring the data of the cloud platform, so that the radio frequency parameters of the radar can be controlled more conveniently, and firefighters can acquire human body information more conveniently.
The data processing unit is connected with the OLED display screen and is used for displaying trigger information of all devices in the same platform so as to help survivors to control fire information and select a better escape route.
Specifically, the millimeter wave radar module is an FMCW radar system.
The millimeter wave radar module comprises a signal transmitting module, a binary power divider 13, a mixer 15, a transmitting antenna 14 and a receiving antenna 16;
The signal transmitting module is connected with the data processing unit 3 and is associated with the smoke alarm module 1, and is used for triggering the transmitting module to work according to smoke alarm information;
The signal transmitting module is connected with a two-way power divider 13, the two-way power divider 13 is respectively connected with a transmitting antenna 14 and a mixer 15, and is used for dividing a transmitting signal into two paths, wherein a first path of signal is transmitted through the transmitting antenna 13, and a second path of signal is transmitted to the mixer 15;
The input side of the mixer 15 is also connected with a receiving antenna 16, and the receiving antenna 16 is used for receiving a first path of signal and sending the first path of signal to the mixer 15;
The output side of the mixer 15 is connected with a data processing unit 3, and the data processing unit 3 is used for analyzing the signals processed by the mixer to obtain information of existence of a human body and azimuth distance information.
The signal transmitting module comprises an operational amplifier 11 and a voltage-controlled oscillator 12, the data processing unit 3 is connected with the smoke alarm 1 and is used for receiving smoke alarm 1 signals, the data processing unit 3 is connected with the operational amplifier 11 and is used for amplifying generated alternating voltage signals, and the operational amplifier 11 is connected with the voltage-controlled oscillator 12 and is used for converting the amplified alternating voltage signals into millimeter wave signals of a preset frequency band.
Description of working scene:
By taking a building as an example, the non-contact fire scene survivor search and rescue device is arranged near the activity area of personnel, and the radar part of the system is always in a standby state and the smoke alarm 1 is in a detection state in the daily life and the production process.
When a fire disaster is found on site, smoke is generated, the smoke alarm 1 gives an alarm, the MCU of the radar system is triggered and started, and the radar system is started to work.
The radar system sends millimeter wave signals to the surrounding environment, returns when the radar system touches a survivor, and determines specific azimuth, quantity information and distance information of the survivor after comparing and analyzing the original signals and the returned signals, and sends the specific azimuth, quantity information and distance information to the cloud platform through the wireless module. The device can acquire information whether other devices trigger smoke alarm or not through the cloud platform and display the information in the OLED screen, so that trapped people can be helped to select escape routes or safer areas to wait for rescue.
According to the visualized corresponding data in the APP, rescue workers can judge the specific azimuth of the current survivor by combining the installation position of the radar system and a building map, and fixed-point rescue is implemented.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (5)
1. A non-contact fire scene survivor search and rescue device which is characterized in that: the system comprises a smoke alarm module, a data processing unit, a millimeter wave radar module, a wireless module, a cloud platform and a mobile terminal;
The smoke alarm module is connected with the data processing unit and is used for detecting whether smoke appears in the environment and triggering alarm information;
The millimeter wave radar module is connected with the data processing unit and is used for judging whether a human body exists or not, and monitoring the number of people and the azimuth distance of the people according to triggered alarm information;
the cloud platform is connected with the data processing unit through the wireless module and is used for sending information of the existence of the human body, the information of the number of people and the azimuth distance information to the cloud platform;
The cloud platform pushes the acquired information to the mobile terminal, and the millimeter wave radar module comprises a signal transmitting module, a binary power divider, a mixer, a transmitting antenna and a receiving antenna;
The signal transmitting module is connected with the data processing unit and is associated with the smoke alarm module, and is used for triggering the transmitting module to work according to the smoke alarm information;
the signal transmitting module is connected with a two-way power divider which is respectively connected with a transmitting antenna and a mixer and is used for dividing a transmitting signal into two ways, wherein a first way of signal is transmitted through the transmitting antenna, and a second way of signal is transmitted to the mixer;
the input side of the mixer is also connected with a receiving antenna, and the receiving antenna is used for receiving a first path of signals and sending the first path of signals to the mixer;
The output side of the mixer is connected with a data processing unit, the data processing unit is used for analyzing signals processed by the mixer to obtain information and azimuth distance information of a human body, the signal transmitting module comprises an operational amplifier and a voltage-controlled oscillator, the data processing unit is connected with the operational amplifier and used for amplifying generated alternating voltage signals, and the operational amplifier is connected with the voltage-controlled oscillator and used for converting the amplified alternating voltage signals into millimeter wave signals in a preset frequency band.
2. The non-contact fire survivor search and rescue apparatus as set forth in claim 1, wherein: the millimeter wave radar module is an FMCW radar system.
3. The non-contact fire survivor search and rescue apparatus as set forth in claim 2, wherein: the wireless module is of the type NB-IOT (BC 35-G) module.
4. A non-contact fire survivor search and rescue apparatus as set forth in claim 3, wherein: the frequency band of the millimeter wave signal output by the voltage-controlled oscillator is 24GHz.
5. The non-contact fire survivor search and rescue apparatus as set forth in any one of claims 1 to 4, wherein: the data processing unit is connected with the OLED display screen and used for displaying trigger information of all devices in the same network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322227923.8U CN220873098U (en) | 2023-08-18 | 2023-08-18 | Non-contact type fire scene survivor search and rescue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322227923.8U CN220873098U (en) | 2023-08-18 | 2023-08-18 | Non-contact type fire scene survivor search and rescue device |
Publications (1)
| Publication Number | Publication Date |
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| CN220873098U true CN220873098U (en) | 2024-04-30 |
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|---|---|---|---|
| CN202322227923.8U Active CN220873098U (en) | 2023-08-18 | 2023-08-18 | Non-contact type fire scene survivor search and rescue device |
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| Country | Link |
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| CN (1) | CN220873098U (en) |
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2023
- 2023-08-18 CN CN202322227923.8U patent/CN220873098U/en active Active
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