CN210376725U - Multi-sensing fusion life detection positioning system - Google Patents
Multi-sensing fusion life detection positioning system Download PDFInfo
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Abstract
A multi-sensory fusion life detection positioning system, comprising: the radar detection unit is used for providing real-time detection data for the calculation of the three-dimensional positioning coordinates of the life bodies in the ruins and sending the real-time detection data to the data transmission unit; the micro-vibration detection unit is used for detecting a vibration signal and sending the vibration signal to the data transmission unit; the audio and video detection unit is used for providing image and sound wave real-time detection data for life bodies in the ruins, checking the actual environment, the position and the physical sign information of the life bodies in the ruins, providing more accurate rescue information through real-time conversation, and sending the detection data to the data transmission unit in a wireless mode; the data transmission unit is used for receiving detection data sent by the radar detection unit, the micro-vibration detection unit and the audio and video detection unit and forwarding the detection data; and the detection display terminal is used for dynamically displaying the detection process and the detection result information in real time. The utility model has the advantages of easy and simple to handle, application scope is wide, can improve life detection positioning accuracy greatly.
Description
Technical Field
The utility model discloses mainly relate to life detection technical field, refer in particular to a life detection positioning system is fused in many sensors.
Background
At present, domestic earthquake rescue life detection equipment mainly comprises a two-dimensional radar life detection instrument, an audio and video detection instrument and a vibration audio life detection instrument, the equipment generally has the problems of high false alarm rate and inaccurate positioning, and the quick and accurate rescue requirements of a rescue site cannot be met.
The radar life detection positioning system based on the Doppler effect principle can penetrate through stone or concrete barriers of several meters or even tens of meters to detect and position survivors in the ruins. However, in practical use, the method only relying on radar detection has the following problems:
radar life detection positioning is to determine whether life bodies and the directions thereof exist in the ruins or not by performing algorithm analysis processing on reflected electromagnetic waves. However, due to the complex environment in the ruins, various media including stones, concrete, tiles, steel bars and the like can reflect electromagnetic echoes to different degrees, so that the signals received by the electromagnetic receiver are different from the actual signals, a plurality of targets with different signal strengths can exist in the detection result, the specific positions of real life bodies are difficult to determine, and the difficulty of earthquake rescue is increased;
the ability of radar waves to penetrate the ruins is limited, and when the on-site ruins layer is thick and the types of media are complex, target echo signals are extremely weak, so that a receiver cannot receive effective target echoes; in particular, when metal substances such as steel plates exist in the ruins, electromagnetic waves cannot penetrate through the metal substances, and thus the radar life detection mode cannot work.
When the radar detects that life bodies exist in the ruins, the radar cannot enter the ruins to check and confirm the states of the life bodies and achieve real-time communication, information of rescue objects is difficult to master, and rescue efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides an it surveys positioning system to operate portably, application scope is wide, can improve life detection positioning accuracy's many sensing fusion greatly.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a multi-sensory fusion life detection positioning system, comprising:
the radar detection unit is used for providing real-time detection data for the calculation of the three-dimensional positioning coordinates of the life bodies in the ruins and sending the real-time detection data to the data transmission unit;
the micro-vibration detection unit is used for detecting a vibration signal and sending the vibration signal to the data transmission unit;
the audio and video detection unit is used for providing image and sound wave real-time detection data for life bodies in the ruins, checking the actual environment, the position and the physical sign information of the life bodies in the ruins, providing more accurate rescue information through real-time conversation, and sending the detection data to the data transmission unit in a wireless mode;
the data transmission unit is used for receiving detection data sent by the radar detection unit, the micro-vibration detection unit and the audio and video detection unit and forwarding the detection data to the detection display terminal in a wireless mode;
and the detection display terminal is used for dynamically displaying the detection process and the detection result information in real time.
As a further improvement of the system of the present invention: the radar detection unit is an ultra-wideband radar, and the detection surface is placed in a specific range to gradually detect in a multi-direction range.
As a further improvement of the system of the present invention: the micro-vibration detection unit comprises at least two or four micro-vibration sensors for providing two detection data; one is prior data of the system use environment, which reflects the environmental characteristics of the equipment, also called calibration data, and is completed before the orientation of the vibration source is detected, and is the basis for determining the orientation of the vibration source; the other is real-time detection data used for calculating the direction of the knocking vibration source in the ruins.
As a further improvement of the system of the present invention: the detection display terminal comprises a data processing unit and a control display unit, wherein the data processing unit is used for receiving real-time detection data sent by the data transmission unit and obtaining respective detection results; the control display unit is used for controlling whether the working mode of the micro-vibration detection unit is a calibration mode or a detection mode, controlling the detection process and the detection time of the radar detection unit and the micro-vibration detection unit, and controlling and displaying the image and playing the sound audio/video detection unit.
As a further improvement of the system of the present invention: the radar detection unit, the micro-vibration detection unit and the audio and video detection unit are arranged in the same area range.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a life detection positioning system is fused in many sensing fuses radar, little vibration and audio frequency and video life detection technique and fuses, can lay radar detection unit, little vibration equipment and audio video equipment and survey in same region, carries out contrastive analysis with the life body locating information that little vibration equipment confirmed and the life body locating information that radar detection unit confirmed, rejects most virtual target, with the life body locking in littleer, more accurate region. Meanwhile, through an audio and video technology, an audio and video sensor goes deep into the ruins from the gap to check video images and communicate with life bodies in real time, the real situation in the trapped area is accurately mastered, and the detection and rescue effect is guaranteed to the maximum extent.
2. The utility model discloses a life detection positioning system is fused in many sensors, both can compensate single radar life detection technique or single micro-vibration detection technique or single audio frequency and video detection technique's self defect, have broad space-time coverage area again, very high measurement dimension, advantages such as good stability performance and target space resolution, and can obtain more comprehensive, more accurate life body and disaster relief site environment information, provide the decision-making foundation for making the high-efficient feasible rescue scheme, shorten the rescue time, reduce the disaster loss.
3. The utility model discloses a many sensors fuse life and survey positioning system has characteristics such as easy operation, detection speed are fast, quick locking, accurate positioning, through adopting wireless network deployment mode, has increased the flexibility of system.
Drawings
Fig. 1 is a schematic view of the topology of the positioning system of the present invention.
Fig. 2 is a schematic view of the working flow of the positioning system of the present invention.
Illustration of the drawings:
1. a radar detection unit; 2. a micro-vibration detection unit; 3. an audio/video detection unit; 4. a data transmission unit; 5. detecting a display terminal; 51. a data processing unit; 52. the display unit is controlled.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples.
As shown in fig. 1, the utility model discloses a life detection positioning system is fused in many senses, include:
the radar detection unit 1 is used for providing real-time detection data for the calculation of the three-dimensional positioning coordinates of the life bodies in the ruins and sending the real-time detection data to the data transmission unit 4.
And the micro-vibration detection unit 2 is used for detecting vibration signals and sending the vibration signals to the data transmission unit 4.
The audio and video detection unit 3 is used for providing image and sound wave real-time detection data for life bodies in the ruins so as to check the actual environment, the position of the life bodies and physical sign information in the ruins, providing more accurate rescue information through real-time conversation, and sending the detection data to the data transmission unit 4 in a wireless mode.
And the data transmission unit 4 is used for receiving the detection data sent by the radar detection unit 1, the micro-vibration detection unit 2 and the audio and video detection unit 3 and forwarding the detection data to the detection display terminal 5 in a wireless mode.
And the detection display terminal 5 is used for dynamically displaying the detection process and the detection result information in real time.
In a specific application example, the radar detection unit 1 may adopt an ultra-wideband radar according to actual needs, the detectable surface is placed in a specific range, multi-directional range detection is performed step by step, and detection data is sent to the data transmission unit 4 in a wireless manner.
In a specific application example, the micro-vibration detection unit 2 includes at least two or four micro-vibration sensors for providing two detection data, one is a priori data of the environment where the system is used, and the other is real-time detection data for calculating the orientation of the knocking vibration source in the ruin, the a priori data represents the environmental characteristics of the equipment, is also called calibration data, needs to be completed before the orientation of the vibration source is detected, and is a basis for determining the orientation of the vibration source.
In a specific application example, when the micro-vibration detection unit 2 performs the azimuth detection of the vibration source, the sensors can be arranged in a proper space range according to the sensing radius range of the sensors and the number of the sensors. For example, 4 sensors may be respectively disposed at 4 centers or 2 center positions on the ground of 4 spaces 5X5 or 2 spaces 5X10, the sensors are independent from each other and have no functional difference, and the detection data thereof are respectively transmitted to the data transmission unit 4 in a wireless manner.
In a specific application example, as a preferable scheme, the radar detection unit 1, the micro-vibration detection unit 2 and the audio and video detection unit 3 need to be arranged in the same area range.
In a specific application example, the data transmission unit 4 may be selected according to actual needs, such as selecting a device with a wireless routing function, for example, a wireless AP.
In a specific application example, the detection display terminal 5 can be selected according to actual needs, namely a pad or a notebook computer is adopted, and the radar detection unit 1, the micro-vibration detection unit 2 and the audio and video detection unit 3 are all connected into the data transmission unit 4 in a wireless mode, so that the flexibility of the system is improved, and the wireless mode can be WIFI wireless network connection.
In a specific application example, the detection display terminal 5 includes a data processing unit 51 and a control display unit 52, where the data processing unit 51 is configured to receive real-time detection data sent by the data transmission unit 4, and call a corresponding algorithm to perform data analysis to obtain respective detection results; the control display unit 52 can be used to control whether the operation mode of the micro-vibration detection unit 2 is the calibration mode or the detection mode, control the detection process and the detection time of the radar detection unit 1 and the micro-vibration detection unit 2, and control and display the image and play the audio/video detection unit 3.
According to the above, the utility model discloses fuse radar, micro-vibration and audio frequency and video life detection technique, can lay radar detection unit 1, micro-vibration unit 2 and audio video unit 3 and survey in same region, carry out contrastive analysis with the life body locating information that micro-vibration unit 2 confirmed and the life body locating information that radar detection unit 1 confirmed, reject most virtual target, with the life body locking in littleer, more accurate region. Meanwhile, through the audio and video technology, the audio and video unit 3 goes deep into the ruins from the gap to check the video images and converse with the life bodies in real time, the real situation in the trapped area is accurately mastered, and the detection and rescue effect is guaranteed to the maximum extent.
The method can make up the self defects of a single radar life detection technology or a single micro-vibration detection technology or a single audio/video detection technology, has the advantages of wide space-time coverage area, high measurement dimension, good performance stability, good target space resolution and the like, can obtain more comprehensive and accurate life body and disaster relief site environment information, provides decision basis for making an efficient and feasible rescue scheme, shortens rescue time and reduces disaster loss.
As shown in fig. 2, the present invention is a schematic flow chart of a detection and positioning system during operation, and it should be emphasized that this is only an operation example of the system during operation, wherein the operation can be re-established according to actual needs, and the steps in this example include:
step S1: arranging equipment and determining a threshold;
the layout of the micro-vibration detection units 2, the number of the micro-vibration sensors 2 is determined according to the on-site ruin environment and the detection range, the proper calibration and life detection space range is selected for sensor layout, the selection principle of the calibration space is that no obvious vibration source exists nearby, 2 or 4 sensors are generally recommended to be selected in consideration of the complexity of the post-earthquake environment, after a detector operates a detection display terminal 5 to collect calibration data and complete a calibration mode generation threshold, the micro-vibration detection units 2 are respectively arranged at 4 centers or 2 center positions on 4 about 5X5 or 2 about 5X10 space ground, and the threshold reflects the characteristics of the environment;
due to the arrangement of the radar detection units 1, the detectable surface faces the detection area and is placed in the same central position of about 10X10 detection area as the micro-vibration sensor, so that the labor investment in the detection process is saved, and the operation is convenient.
The detection progress and detection time of the micro-vibration detection unit 2 and the radar detection unit 1 can be set by the detection display terminal 5 controlled by the detector.
Step S2: determining the orientation of a living body;
the determination of the living body orientation is based on the threshold generated in step S1, the detection control terminal 5 is operated to start the detection mode, the vibration signals in the ruins detected by the micro-vibration sensors 2 in different orientations in real time are analyzed to obtain the vibration characteristic values of each path, the vibration characteristic values of each path are compared with the respective threshold generated in step S1 to obtain whether or not a living body exists in the ruins in each orientation and the probability thereof, and the detection result of each micro-vibration sensor 2 can be displayed on the detection display terminal 5 and the orientation of the living body is marked.
The existing common vibration signal analysis means is to utilize a wavelet analysis method to remove noise and combine a classical Geiger method and other methods to analyze the vibration signal, so as to effectively position the vibration source.
Step S3: determining a three-dimensional coordinate of a living body;
step S301: the two-dimensional position coordinates of the life body in the ruins, which are detected by the radar detection unit 1, are depth and transverse position, and false targets in a plurality of life body targets possibly occurring in radar detection due to a complex environment are eliminated by combining the life body orientation information detected in the step S2, wherein the placing posture of the radar detection unit 1 is the first posture;
step S302: and placing the radar detection unit 1 according to a second posture, performing secondary detection on the screened life body target, and determining the three-dimensional position coordinate of the target, wherein the second posture is vertical to the first posture on the same plane.
Step S4: checking and monitoring the state of a living body;
step S401: determining the three-dimensional coordinates of the life object in combination with the step S3, and searching the gap position of the ruins on the ruins above the coordinates;
step S402: inserting the probe of the audio and video detection unit 3 into the ruins from the ruins gap, and simultaneously checking and monitoring through the control display terminal 5; adjusting the insertion depth and angle of the probe according to the image and the sound to gradually approach the living body;
step S403: and finally, the probe of the audio and video detection unit 3 is close to the life body, the state of the life body and the internal situation of the ruins are checked through images, and the life body communicates with the life body to establish an optimal rescue scheme. The detection process and the detection result can be dynamically displayed on the detection display terminal 5 in real time.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (5)
1. A multi-sensor fusion life detection positioning system, comprising:
the radar detection unit (1) is used for providing real-time detection data for the calculation of the three-dimensional positioning coordinates of the life bodies in the ruins and sending the real-time detection data to the data transmission unit (4);
the micro-vibration detection unit (2) is used for detecting a vibration signal and sending the vibration signal to the data transmission unit (4);
the audio and video detection unit (3) is used for providing image and sound wave real-time detection data for life bodies in the ruins, checking the actual environment, the positions and the physical sign information of the life bodies in the ruins, providing more accurate rescue information through real-time conversation, and sending the detection data to the data transmission unit (4) in a wireless mode;
the data transmission unit (4) is used for receiving detection data sent by the radar detection unit (1), the micro-vibration detection unit (2) and the audio and video detection unit (3) and forwarding the detection data to the detection display terminal (5) in a wireless mode;
and the detection display terminal (5) is used for dynamically displaying the detection process and the detection result information in real time.
2. The multi-sensing fusion life detection positioning system according to claim 1, wherein the radar detection unit (1) is an ultra-wideband radar, and a detection surface is placed in a specific range to gradually detect a multi-directional range.
3. The multi-sensing fusion life detection positioning system according to claim 1, wherein the micro-vibration detection unit (2) comprises at least two or four micro-vibration sensors for providing two detection data; one is prior data of the system use environment, which reflects the environmental characteristics of the equipment, also called calibration data, and is completed before the orientation of the vibration source is detected, and is the basis for determining the orientation of the vibration source; the other is real-time detection data used for calculating the direction of the knocking vibration source in the ruins.
4. The multi-sensing fusion life detection positioning system according to claim 1, wherein the detection display terminal (5) comprises a data processing unit (51) and a control display unit (52), the data processing unit (51) is used for receiving real-time detection data transmitted by the data transmission unit (4) and obtaining respective detection results; the control display unit (52) is used for controlling whether the working mode of the micro-vibration detection unit (2) is a calibration mode or a detection mode, controlling the detection process and the detection time of the radar detection unit (1) and the micro-vibration detection unit (2), and controlling and displaying images and playing sound audio/video detection units (3).
5. The multi-sensing fusion life detection positioning system according to claim 1 or 2 or 3 or 4, characterized in that the radar detection unit (1), the micro-vibration detection unit (2) and the audio-video detection unit (3) are arranged in the same area.
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Address after: Building B7, Lugu enterprise Plaza, 27 Wenxuan Road, high tech Zone, Changsha City, Hunan Province, 410205 Patentee after: Huanuo Xingkong Technology Co.,Ltd. Address before: Building B7, Lugu enterprise Plaza, 27 Wenxuan Road, high tech Zone, Changsha City, Hunan Province, 410205 Patentee before: Hunan Huanuo Xingkong Electronic Technology Co.,Ltd. Address after: Building B7, Lugu enterprise Plaza, 27 Wenxuan Road, high tech Zone, Changsha City, Hunan Province, 410205 Patentee after: Hunan Huanuo Xingkong Electronic Technology Co.,Ltd. Address before: Building B7, Lugu enterprise Plaza, 27 Wenxuan Road, high tech Zone, Changsha City, Hunan Province, 410205 Patentee before: HUNAN NOVASKY ELECTRONIC TECHNOLOGY Co.,Ltd. |