Atomic magnetometer capable of realizing wireless data transmission

Abstract

The invention relates to an atomic magnetometer capable of realizing wireless data transmission, which is applied to the technical field of atomic magnetometers, and is characterized in that a magnetometer body is switched between two unmanned aerial vehicles in a flight state, so that the magnetometer body is always kept in a data acquisition state, and the limitation of power of the unmanned aerial vehicles is eliminated; the situation that long-time data acquisition of the atomic magnetometer is affected by frequent flying and recovery of the unmanned aerial vehicle is effectively avoided, and after data mistransmission and transmission interruption occur due to signal disconnection and signal fluctuation between the ground data equipment and the wireless data transmission module, wireless signals are recovered. The supplementary transmission unit resends missing data in the time period to the ground data equipment, the signal judgment module marks the data received in the time period, and when the signal is recovered to a strong state, the data feedback module is also utilized to send a verification instruction to the data management module, and the data management module performs verification. And retransmitting the data of the time period to the ground data equipment by using the supplementary transmission unit.

Description

Technical Field

[0001] The invention relates to an atomic magnetometer, in particular to an atomic magnetometer which is applied in the technical field of atomic magnetometers and can realize wireless data transmission. Background Art

[0002] The atomic magnetometer on the drone is a high-precision magnetic measurement device that can measure tiny changes in the Earth's magnetic field. This type of equipment is usually used in situations that require extremely high precision and stability. On drones, drones can use atomic magnetometers to assist in navigation. They can also be used to measure the magnetism of underground rocks to help identify mineral resources, and to monitor changes in the Earth's magnetic field to study the dynamic changes of the Earth's magnetic field and the impact of solar wind on the Earth's magnetic field. In the military, security and other fields, atomic magnetometers can be used to detect underground or underwater magnetic anomalies, such as submarines and unexploded bombs. The atomic magnetometer carried by drones can quickly cover large areas and improve exploration efficiency.

[0003] The Chinese invention patent CN202311741694.X specification discloses "A flight data wireless transmission system based on LTE Cat1 technology", which can adjust the position of each drone and the range of the returned images in real time and flexibly according to the image upload speed of each drone. In the case of a good wireless network environment and good upload speed, it can improve the image overlap rate of the images returned by each drone, which is conducive to obtaining a better image fusion effect and is conducive to the real-time preview and analysis of the image acquisition effect of the main control end. When the image upload speed of some drones is poor, the size of the images uploaded by the drones with poor upload speed can be reduced, thereby offsetting the impact of the poor upload speed. At the same time, the positions of all drones can be adjusted to allow other drones to make up for the vacancies caused by the reduction of the size of uploaded images by drones with poor upload speeds, thereby ensuring the image overlap rate as a whole.

[0004] Due to the limitation of the power endurance of drones, drones need to be frequently launched and recovered to charge the drones. When traditional magnetic measurement equipment is used on drones, most of them use fixed data storage devices to save data, that is, USB storage. After the drone is recovered, the data storage USB is retrieved to realize data collection. This method of data collection does not allow ground staff to understand the data collection situation in real time. In order to solve this problem, the traditional improvement method is to install wireless data transmission equipment. However, since the atomic magnetometer relies on the power supply of the drone, the frequent launch and recovery of the drone affects the long-term data collection of the atomic magnetometer. At the same time, due to the different wireless network transmission environments, when the wireless network environment in the area where the drone is located is poor and the wireless network is disconnected due to the flight environment, the image transmission data quality is poor, the speed is slow, or even cannot be transmitted, which is not conducive to ground staff obtaining the detection data of the atomic magnetometer on the drone. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the frequent launching and recovery of drones affects the long-term data collection of the atomic magnetometer. At the same time, due to the different wireless network transmission environments, the data quality of the image transmission is poor, the speed is slow, or even the data transmission cannot be achieved, which is not conducive to ground staff obtaining the detection data of the atomic magnetometer on the drone.

[0006] In order to solve the above problems, the present invention provides an atomic magnetometer capable of realizing wireless data transmission, comprising a magnetometer body and a drone body for carrying the magnetometer body, wherein the bottom of the drone body is fixedly connected with an assembly track, the top of the magnetometer body is fixedly connected with an assembly track plate, the assembly track plate is slidably connected with the assembly track, the middle of the assembly track is movably connected with a telescopic end head, the middle of the assembly track plate is fixedly connected with an assembly connection hole, and the telescopic end head is plug-connected and corresponds to the assembly connection hole;

[0007] The magnetometer body includes a data management module, the output end of the data management module is connected to a data storage module and a wireless data transmission module, the wireless data transmission module is wirelessly connected to a ground data device, the wireless data transmission module includes a real-time transmission unit and a supplementary transmission unit, the data storage module includes a real-time data marking unit and a data verification module, and the data storage module is installed in the drone body, the real-time data marking unit is connected to the supplementary transmission unit, the ground data device includes a signal judgment module and a data feedback module, and the data feedback module is connected to the data verification module.

[0008] In the above-mentioned atomic magnetometer capable of realizing wireless data transmission, the wireless data transmission of the atomic magnetometer is realized through the wireless data transmission module, so that the ground staff can receive the detection data in real time through the ground data equipment.

[0009] As a further improvement of the present application, an extension bracket is fixedly connected to the bottom of the magnetometer body, the wireless data transmission module is composed of a 2.4G wireless data transmission module, and the transmission antenna of the wireless data transmission module and the sensing probe of the magnetometer body are respectively fixed at both ends of the extension bracket, and the data storage module uses a USB flash drive to save data, which effectively improves the wireless data transmission capability of the wireless data transmission module and effectively reduces the mutual interference between the transmission antenna of the wireless data transmission module and the sensing probe of the magnetometer body. After recovering the drone, the data storage module is taken out for comparison with the real-time data, thereby compensating for the mistransmitted and missing data.

[0010] As a further improvement of the present application, both ends of the assembly track are rotatably connected with drive wheels, which are rollingly connected to the assembly track plate. The drive wheel adopts a unidirectional rotation drive, and the drive wheel is utilized to push the assembly track plate to telescope within the assembly track, thereby facilitating the automatic exchange of the atomic magnetometer between the two drones.

[0011] As a further improvement of the present application, a docking port is fixedly connected to the top of the tail end of the assembly track, and the docking port corresponds to the forward end of the assembly track plate, and the upper opening of the docking port is arranged at an angle to facilitate the front and rear docking of two flying drones. The extended forward end of the assembly track plate is quickly hooked into the docking port, thereby facilitating the exchange of the atomic magnetometer between the two flying drones.

[0012] As another improvement of the present application, both ends of the bottom of the docking interface are fixedly connected with electromagnet modules, and the forward end of the assembly rail plate is fixedly embedded with an attraction end, which corresponds to the adsorption of the electromagnet module. The electromagnet module utilizes the magnetic force of the attraction end to guide the forward end of the assembly rail plate to descend into the docking interface, that is, the assembly rail plate and the assembly track are calibrated, and at the same time, the assembly rail plate is prevented from being separated from the docking interface, which facilitates the assembly rail plate to be inserted into the assembly track.

[0013] As another improvement supplement of the present application, the left and right edges of the assembly rail plate are fixedly inlaid with reinforcement ribs, the attraction end and the reinforcement ribs are made of stainless steel, and the reinforcement ribs correspond to the adsorption of the electromagnet module. The reinforcement ribs are used to effectively improve the structural strength of the assembly rail plate, and at the same time, the adsorption of the reinforcement ribs and the electromagnet module is used to effectively improve the stability of the assembly rail plate when inserted into the assembly track.

[0014] As another improved supplement of the present application, the power end of the electromagnet module is equipped with a current intensity adjustment module, and the upper surface of the electromagnet module and the lower surface of the reinforcement rib are both provided with meshing teeth. The upper surface of the electromagnet module is paved with a flattening film, and the flattening film is made of wear-resistant rubber material. The current intensity adjustment module is used to realize the regulation of the magnetic force of the electromagnet module. When the magnetic force of the electromagnet module increases, the upper surface of the electromagnet module and the lower surface of the reinforcement rib are more closely attached, thereby compressing the flattening film to deform, and realizing the mutual meshing of the teeth on the electromagnet module and the reinforcement rib, thereby realizing the fixation of the state of the assembled rail plate and preventing the assembled rail plate from falling back out of the assembly track. Conversely, when the magnetic force of the electromagnet module decreases, the flattening film flattens the teeth on the electromagnet module to facilitate the sliding of the reinforcement rib on the electromagnet module.

[0015] In summary, the present invention realizes the wireless data transmission of the atomic magnetometer through the wireless data transmission module, which is convenient for ground staff to receive the detection data in real time through the ground data equipment. By switching between the two drones in the flight state, the magnetometer body is always kept in the data collection state, getting rid of the limitation of the drone's own power, and effectively avoiding the frequent release and recovery of the drone affecting the long-term data collection of the atomic magnetometer. When the signal between the ground data equipment and the wireless data transmission module is disconnected and the signal fluctuates, the real-time transmission unit fails to complete the task of transmitting data to the ground data equipment, and the transmitted wireless data is mistransmitted. After the signal is restored, the supplementary transmission unit resends the missing data in the time period to the ground data equipment, and the signal judgment module marks the data received in the time period, and when the signal is restored to a stronger state, the data feedback module is also used to send a verification instruction to the data management module, and the supplementary transmission unit is used to resend the data in the time period to the ground data equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0017] Figure 2 This is a bottom-up stereoscopic structural diagram of the assembly track of the first embodiment of the present application;

[0018] Figure 3 This is a top-down perspective structural diagram of a magnetometer body according to a first embodiment of the present application;

[0019] Figure 4 This is a bottom-up demonstration diagram of two drone bodies switching magnetometer bodies in the first embodiment of the present application;

[0020] Figure 5 This is a system demonstration diagram of the first implementation mode of this application;

[0021] Figure 6 This is a system diagram of the first implementation mode of the present application;

[0022] Figure 7 This is a top view demonstration diagram of two drone bodies converting magnetometer bodies according to the second embodiment of the present application;

[0023] Figure 8 This is an enlarged view of the interface of the second embodiment of the present application;

[0024] Fig. 9 This is an enlarged view of the attraction end and the reinforcing ribs of the second embodiment of the present application;

[0025] Fig.10 This is a demonstration diagram of the flattening membrane deformation in the second embodiment of the present application.

[0026] Description of the numbers in the figure:

[0027] 1. Magnetometer body; 101. UAV body; 102. Assembly track; 103. Assembly track plate; 104. Telescopic terminal; 105. Assembly connection hole; 106. Extension bracket; 107. Driving wheel; 2. Ground data equipment; 3. Docking port; 301. Electromagnet module; 302. Suction terminal; 303. Reinforcement rib; 304. Tooth groove; 305. Leveling membrane. DETAILED DESCRIPTION

[0028] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] Figures 1 to 4 The figure shows an atomic magnetometer capable of realizing wireless data transmission, comprising a magnetometer body 1 and a drone body 101 for carrying the magnetometer body 1, wherein an assembly track 102 is fixedly connected to the bottom of the drone body 101, an assembly track plate 103 is fixedly connected to the top of the magnetometer body 1, the assembly track plate 103 is slidably connected to the assembly track 102, a telescopic terminal 104 is movably connected to the middle of the assembly track 102, an assembly connection hole 105 is fixedly connected to the middle of the assembly track plate 103, the telescopic terminal 104 is plugged and corresponding to the assembly connection hole 105, both ends of the assembly track 102 are rotatably connected to driving wheels 107, the driving wheels 107 are rollingly connected to the assembly track plate 103, the driving wheels 107 are unidirectionally rotated, and the driving wheels 107 are used to push the assembly track plate 103 to telescopically move in the assembly track 102, thereby facilitating the atomic magnetometer to be automatically exchanged between two drones;

[0031] When using the atomic magnetometer, by inserting the assembly rail plate 103 into the assembly track 102, the driving wheel 107 is rotated to push the assembly rail plate 103 to automatically insert into the assembly track 102, so that the magnetometer body 1 is fixedly installed on the bottom of the drone body 101, and then the telescopic end 104 is lowered and plugged into the assembly connection hole 105 to achieve power and data connection between the magnetometer body 1 and the drone body 101, so that the drone body 101 can carry the magnetometer body 1 to perform magnetic field detection in the air, and the magnetometer body 1 can be switched between two drones in flight, so that the magnetometer body 1 is always kept in a data collection state, free from the limitation of the drone's own power, and effectively avoid the frequent release and recovery of the drone affecting the long-term data collection of the atomic magnetometer.

[0032] Figures 4 to 6As shown, the magnetometer body 1 includes a data management module, the output end of the data management module is connected to a data storage module and a wireless data transmission module, the wireless data transmission module is wirelessly connected to a ground data device 2, the wireless data transmission module includes a real-time transmission unit and a supplementary transmission unit, the data storage module includes a real-time data marking unit and a data verification module, and the data storage module is installed in the drone body 101, the real-time data marking unit is connected to the supplementary transmission unit, the ground data device 2 includes a signal judgment module and a data feedback module, the data feedback module is connected to the data verification module, the bottom of the magnetometer body 1 is fixedly connected to an extension bracket 106, the wireless The data transmission module is composed of a 2.4G wireless data transmission module. The 2.4G wireless data transmission module has the characteristics of fast transmission speed, strong anti-interference ability, and long transmission distance, and is suitable for various wireless data transmission scenarios. The transmission antenna of the wireless data transmission module and the induction probe of the magnetometer body 1 are respectively fixed at both ends of the extension bracket 106. The data storage module uses a U disk to store data, which effectively improves the wireless data transmission capacity of the wireless data transmission module and effectively reduces the mutual interference between the transmission antenna of the wireless data transmission module and the induction probe of the magnetometer body 1. After the drone is recovered, the data storage module is taken out for comparison with the real-time data, so as to make up for the mistransmitted and missing data.

[0033] The data collected by the magnetometer body 1 is processed by the data management module, and the data is saved by the data storage module. At the same time, the real-time transmission unit on the wireless data transmission module is used to wirelessly transmit the data to the ground data device 2. The staff uses the ground data device 2 to view the data in real time. When the signal between the ground data device 2 and the wireless data transmission module is disconnected, the real-time transmission unit fails to complete the task of transmitting data to the ground data device 2. After the signal is restored, the supplementary transmission unit resends the missing data in the time period to the ground data device 2. When the signal between the ground data device 2 and the wireless data transmission module is in a weak state, that is, the data transmitted in this time period has data fluctuations and mistransmission, the signal judgment module marks the data received in this period, and when the signal is restored to a strong state, the data feedback module is also used to send a verification instruction to the data management module, and the supplementary transmission unit is used to resend the data in this time period to the ground data device 2.

[0034] The second implementation method:

[0035] Compared with the first embodiment, the main new addition is a docking port 3, the specific new structure is as follows, and the rest of the structure is consistent with the first embodiment.

[0036] Figures 7 to 9As shown, the top of the tail end of the assembly track 102 is fixedly connected with a docking port 3, the docking port 3 corresponds to the forward end of the assembly track plate 103, and the upper opening of the docking port 3 is arranged in an inclined surface, which is convenient for the front and rear docking of two flying drones. The forward end of the extended assembly track plate 103 is quickly put into the docking port 3, so as to facilitate the exchange of the atomic magnetometer between the two flying drones. The bottom ends of the docking port 3 are fixedly connected with an electromagnet module 301, and the forward end of the assembly track plate 103 is fixedly inlaid with an attraction end 302, and the attraction end 302 corresponds to the adsorption of the electromagnet module 301. The magnetic force of the electromagnet module 301 on the attraction end 302 is used to guide the assembly track The forward end of the plate 103 descends into the docking port 3, that is, the assembly rail plate 103 and the assembly track 102 are aligned, and the assembly rail plate 103 is prevented from being separated from the docking port 3, so that the assembly rail plate 103 is plugged into the assembly track 102. The left and right edges of the assembly rail plate 103 are fixedly inlaid with reinforcing ribs 303. The attraction end 302 and the reinforcing ribs 303 are made of stainless steel material, and the reinforcing ribs 303 correspond to the adsorption of the electromagnet module 301. The structural strength of the assembly rail plate 103 is effectively improved by the reinforcement ribs 303. At the same time, the adsorption of the reinforcement ribs 303 and the electromagnet module 301 is effectively used to improve the stability of the assembly rail plate 103 plugged into the assembly track 102;

[0037] When the drone body 101 is running low on power after a long flight, or the data wirelessly transmitted from the magnetometer body 1 to the ground data device 2 is saturated, and the number of abnormal data transmitted increases and requires manual calibration, the staff will re-fly a new drone body 101 to replace the original drone body 101, and the two drone bodies 101 will be docked head to head in the air, and the assembly track 103 will move forward and extend out of the assembly track 102, and the attraction end 302 at the forward end of the assembly track 103 will be inserted into the docking port 3 of the front drone assembly track 102, and the magnet module 301 will use the magnetic force of the attraction end 302 to guide the front of the assembly track 103. The inlet end descends into the docking port 3, that is, the assembly track plate 103 and the assembly track 102 are calibrated, and the subsequent assembly track plate 103 is simultaneously subjected to the thrust and pull of the assembly track 102 on the two drones to achieve the conversion between the two drones. In this process, the adsorption of the reinforcing ribs 303 and the electromagnet module 301 is also used to effectively improve the stability of the assembly track plate 103 plugged into the assembly track 102. The original drone body 101 flies back to the ground and is recovered by the staff. The drone body 101 is charged and the data storage module is recovered, that is, the U disk for data storage is taken out, and manual data calibration and analysis are performed to further improve the accuracy of the magnetometer data collection.

[0038] Figures 8 to 10As shown, the power end of the electromagnet module 301 is equipped with a current intensity adjustment module, and the upper surface of the electromagnet module 301 and the lower surface of the reinforcing rib 303 are both provided with meshing tooth grooves 304, and the upper surface of the electromagnet module 301 is paved with a flattening film 305, and the flattening film 305 is made of wear-resistant rubber material. The current intensity adjustment module is used to adjust the magnetic force of the electromagnet module 301. When the magnetic force of the electromagnet module 301 increases, the upper surface of the electromagnet module 301 and the reinforcing rib 303 are meshed. The lower surface of the reinforcing rib 303 is more closely attached, thereby compressing the flattening film 305 to deform, so that the tooth grooves 304 on the electromagnet module 301 and the reinforcing rib 303 are meshed with each other, thereby fixing the state of the assembly rail plate 103 and preventing the assembly rail plate 103 from falling back out of the assembly track 102. On the contrary, when the magnetic force of the electromagnet module 301 is reduced, the flattening film 305 flattens the tooth grooves 304 on the electromagnet module 301, so that the reinforcing rib 303 can slide on the electromagnet module 301.

[0039] When preparing for the conversion and calibration of the magnetometer body 1 between two flying drones, the extended end of the assembly rail plate 103 is placed on the top of the docking port 3, and the current intensity adjustment module first controls the electromagnet module 301 to enhance the magnetic force and enhance the attraction of the attraction end 302, so that the forward end of the assembly rail plate 103 is lowered into the docking port 3, that is, the assembly rail plate 103 and the assembly track 102 are calibrated, and then the magnetic force of the electromagnet module 301 is reduced, and the assembly tracks 102 on the two drones exert force at the same time to push the assembly rail plate 103 to transfer between the two assembly tracks 102. When the flight status of the two drones fluctuates, the current intensity adjustment module The magnetic force of the electromagnet module 301 is enhanced again, so that the upper surface of the electromagnet module 301 and the lower surface of the reinforcing rib 303 are more closely attached, that is, the flattening membrane 305 is compressed and deformed, and the tooth grooves 304 on the electromagnet module 301 and the reinforcing rib 303 are meshed with each other to fix the state of the assembly track 103 and prevent the assembly track 103 from falling back out of the assembly track 102. When the UAV recovers its stable flight state, the current intensity adjustment module weakens the magnetic force of the electromagnet module 301, the flattening membrane 305 returns to a flat state, and the electromagnet module 301 and the reinforcing rib 303 return to a sliding state, and the assembly track 103 continues to be transferred between the two assembly tracks 102.

[0040] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An atomic magnetometer capable of wireless data transmission, characterized in that: The invention comprises a magnetometer body (1) and an unmanned aerial vehicle body (101) for carrying the magnetometer body (1), wherein the bottom of the unmanned aerial vehicle body (101) is fixedly connected to an assembly track (102), the top of the magnetometer body (1) is fixedly connected to an assembly track plate (103), the assembly track plate (103) is slidably connected to the assembly track (102), the middle of the assembly track (102) is movably connected to a telescopic end head (104), the middle of the assembly track plate (103) is fixedly connected to an assembly connection hole (105), and the telescopic end head (104) is plug-connected and corresponds to the assembly connection hole (105); The magnetometer body (1) contains a data management module, the output end of the data management module is connected to a data storage module and a wireless data transmission module, the wireless data transmission module is wirelessly connected to a ground data device (2), the wireless data transmission module contains a real-time transmission unit and a supplementary transmission unit, the data storage module contains a real-time data marking unit and a data verification module, and the data storage module is installed in the drone body (101), the real-time data marking unit is connected to the supplementary transmission unit, the ground data device (2) contains a signal judgment module and a data feedback module, and the data feedback module is connected to the data verification module.

2. The atomic magnetometer capable of wireless data transmission according to claim 1, characterized in that: The bottom of the magnetometer body (1) is fixedly connected to an extension bracket (106); the wireless data transmission module is composed of a 2.4G wireless data transmission module, and the transmission antenna of the wireless data transmission module and the sensing probe of the magnetometer body (1) are respectively fixed to two ends of the extension bracket (106); and the data storage module uses a USB flash drive to store data.

3. The atomic magnetometer capable of wireless data transmission according to claim 1, characterized in that: Both ends of the assembly track (102) are rotatably connected with driving wheels (107), the driving wheels (107) are rollingly connected to the assembly track plate (103), and the driving wheels (107) are driven by unidirectional rotation.

4. The atomic magnetometer capable of wireless data transmission according to claim 1, characterized in that: The top of the rear end of the assembly track (102) is fixedly connected with a docking port (3), the docking port (3) corresponds to the forward end of the assembly rail plate (103), and the upper opening of the docking port (3) is arranged in an inclined surface.

5. The atomic magnetometer capable of realizing wireless data transmission according to claim 4, characterized in that: Both ends of the bottom of the docking port (3) are fixedly connected with an electromagnet module (301), and the forward end of the assembly rail plate (103) is fixedly inlaid with an attraction end (302), and the attraction end (302) is adsorbed and corresponds to the electromagnet module (301).

6. The atomic magnetometer capable of wireless data transmission according to claim 5, characterized in that: The left and right edges of the assembly rail plate (103) are both fixedly inlaid with reinforcement ribs (303); the attraction end (302) and the reinforcement ribs (303) are made of stainless steel material, and the reinforcement ribs (303) are adsorbed and correspond to the electromagnet module (301).

7. The atomic magnetometer capable of wireless data transmission according to claim 6, characterized in that: The power end of the electromagnet module (301) is equipped with a current intensity adjustment module, and the upper surface of the electromagnet module (301) and the lower surface of the reinforcing rib (303) are both provided with meshing tooth grooves (304), and the upper surface of the electromagnet module (301) is paved with a flattening film (305), and the flattening film (305) is made of wear-resistant rubber material.

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