A field mobile multi-degree-of-freedom radiation automatic test vehicle and its use method

Abstract

The present invention discloses an outdoor mobile multi-degree-of-freedom radiation automatic test vehicle, which mainly solves the problems of weak mobility, limited test height, and incompatibility with outdoor working environment of the existing test system. The test vehicle includes a movable lifting platform for fixing, moving and lifting the entire device, a shielding cabin fixedly connected to the top of the movable lifting platform for electrical equipment installation, environmental control, electromagnetic shielding, rain and sand protection, a test equipment assembly arranged in the shielding cabin, an automatic antenna frame fixed on the movable lifting platform and located on one side of the shielding cabin for antenna switching, pitch and polarization rotation operations, and a variety of test antennas connected to the automatic antenna frame. Through the above design, the test assembly required for the test of the present invention is installed in the shielding cabin, has a good outdoor and electromagnetic compatibility working environment, can choose mature products in the market, does not need to be customized for special application scenarios, and greatly reduces the hardware cost.

Description

Technical Field

[0001] The invention belongs to the technical field of radiation testing, and in particular relates to an outdoor mobile multi-degree-of-freedom radiation automatic testing vehicle and a use method thereof. Background Art

[0002] The modern electromagnetic environment is becoming increasingly complex, and the power density is constantly increasing. There are both natural electromagnetic interference sources, such as lightning and static electricity, and strong man-made interference sources, such as radar, electronic warfare, and communications. The high-intensity radiation field of the external RF environment is an important part of the complex electromagnetic environment. The development of modern equipment systems must take into account the high-intensity radiation field in the complex electromagnetic environment. In a strong electromagnetic environment, if no countermeasures are taken, it will lead to confusion in the battlefield perception of the equipment system, disorder in command and coordination, and reduced efficiency of frequency-using equipment, which will ultimately affect the progress of the war. In order to protect the critical systems of system-level equipment from the adverse effects of high-intensity radiation fields, such targets must be subjected to radiation sensitivity tests such as high-intensity radiation fields or external RF environments.

[0003] Existing radiation sensitivity test systems are mostly used for electromagnetic compatibility darkroom testing. The system has weak mobility, limited test height, and is not compatible with outdoor working environments. It also cannot meet the testing requirements of large equipment (aircraft, ships) at different heights, different pitch and azimuth angles, and different polarizations, especially the testing requirements of the top and bottom of large equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an outdoor mobile multi-degree-of-freedom radiation automatic test vehicle and a method of using the same, mainly to solve the problems of weak mobility, limited test height, and incompatibility with outdoor working environments of existing test systems.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] The invention discloses an outdoor mobile multi-degree-of-freedom radiation automatic test vehicle, comprising a movable lifting platform for fixing, moving and lifting the entire device, a shielding cabin fixedly connected above the movable lifting platform and used for electrical equipment installation, environmental control, electromagnetic shielding, rain protection and sand protection, a test equipment assembly arranged in the shielding cabin, an automatic antenna rack fixed on the movable lifting platform and located on one side of the shielding cabin for antenna switching, pitch and polarization rotation operations, and a plurality of test antennas connected to the automatic antenna rack.

[0007] Furthermore, in the present invention, the movable lifting platform includes a main frame, a driving axle arranged at the front end of the bottom of the main frame for providing walking power for the whole vehicle, a steering axle arranged at the rear end of the bottom of the main frame for realizing the steering function, mast groups fixed on both sides of the main frame for realizing lifting, an installation platform fixedly connected to the single masts on the inner sides of the mast groups on both sides, an electrical control box arranged on the main frame for controlling and displaying various working states of the whole vehicle, and a cable storage box arranged on the main frame and located below the installation platform.

[0008] Furthermore, in the present invention, the movable lifting platform also includes hydraulic legs arranged at the four corners of the bottom of the main frame for realizing the function of crossing obstacles when the whole vehicle moves and ensuring the stability of high-altitude work.

[0009] Furthermore, in the present invention, the movable lifting platform also includes a lithium titanate battery pack arranged in the main frame for realizing the power-off running function of the entire vehicle, and a lithium battery charger for charging the lithium titanate battery pack.

[0010] Furthermore, in the present invention, the shielding cabin includes a shielding cabin body fixed to the installation platform by a cabin rotary lock, a cabin corner connected to the shielding cabin body for quick installation and removal of the cabin rotary lock, a shielding front door and a shielding rear door respectively arranged on the front and rear sides of the shielding cabin body, an installation cabinet arranged in the shielding cabin body, a cabinet shock absorber connected between the bottom of the inner side of the shielding cabin body and the installation cabinet, a bulkhead interface adapter plate and a power supply and control interface plate arranged at the rear of the shielding cabin body, and a distribution box arranged in the shielding cabin body for realizing electrical management, control, power status monitoring and display functions of the equipment in the cabin; wherein the test equipment assembly is installed in the installation cabinet.

[0011] Furthermore, in the present invention, an air conditioner is also provided on the top of the shielding cabin body to realize heat exchange between the inside and outside of the cabin and control the ambient temperature inside the cabin.

[0012] Furthermore, in the present invention, the automatic antenna rack includes a base fixed on the mounting platform, two translation rails arranged on the base, a translation rack arranged between the two translation rails, an electrical box connected to the translation rack and slidably connected to the translation rails, an antenna mounting back frame movably connected to both sides of the electrical box through pitch arms, a waveguide rotation joint installed on the antenna mounting back frame for realizing the polarization rotation function of the waveguide hard-connected antenna, a polarization rotation device installed on the antenna mounting back frame, a cable drag chain fixed on the outer side wall of the electrical box, and a cable fixer fixed on both side walls of the electrical box; wherein the test antenna is installed on the antenna mounting back frame.

[0013] Furthermore, in the present invention, a plurality of laser rangefinders for detecting the distance between the antenna and the object to be measured are also installed on the antenna mounting back frame.

[0014] Based on the above automatic test vehicle, the present invention also provides a method for using the test vehicle, comprising the following steps:

[0015] (S1) moving the vehicle to a designated test location;

[0016] (S2) Setting up the movable lifting platform to the working position;

[0017] (S3) adjusting the central aperture of the test antenna to the required test height;

[0018] (S4) controlling the automatic antenna stand through the electrical box to adjust the angle of the test antenna;

[0019] (S5) switching the antenna and planning polarization rotation through the electrical box;

[0020] (S6) After the test is completed, the antenna is adjusted to the stowed state.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The test assembly required for the test of the present invention is installed in a shielded cabin, which has a good external field and electromagnetic compatibility working environment. Mature products in the market can be selected and do not need to be customized for special application scenarios, which greatly reduces the hardware cost.

[0023] (2) The mobile lifting platform vehicle of the present invention has a large carrying capacity and can simultaneously support instruments and equipment and automatic antenna racks to work stably for a long time at high altitudes. Compared with traditional test platforms, during the high-altitude test process, the relative position between the radiating antenna and the instruments and equipment remains unchanged, and the RF cable used is shorter, which greatly reduces the loss and reduces the hardware cost;

[0024] (3) The movable lifting platform of the present invention is rainproof and has a certain degree of rainproof capability, and is compatible with both indoor and outdoor work. It can also move automatically without being connected to the mains, and is extremely convenient to transport during use;

[0025] (4) The present invention is combined with a lifting platform, and the automatic antenna mount can complete multi-axis movement: the height, pitch angle, azimuth angle, polarization angle and horizontal position can be adjusted. The user does not need to manually adjust the distance and position of the antenna, and the test distance can also be accurately displayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the movable lifting platform in the present invention.

[0028] Figure 3 It is a structural schematic diagram of the automatic antenna stand in the present invention.

[0029] Figure 4 It is a schematic diagram of the structure of the shielding cabin in the present invention from the front perspective.

[0030] Figure 5 It is a schematic diagram of the structure of the shielding cabin in the present invention from the rear end perspective.

[0031] Figure 6 This is the installation position intention of the distribution box in the present invention.

[0032] Figure 7 It is a schematic structural diagram of the unfolding of the mast group in an embodiment of the present invention.

[0033] The names corresponding to the reference numerals are:

[0034] 1- movable lifting platform, 2- shielding cabin, 3- automatic antenna rack, 4- test equipment assembly, 5- test antenna, 6- air conditioner, 7- laser rangefinder, 8- manual pump, 10- main frame, 11- drive axle, 12- steering axle, 13- mast group, 14- installation platform, 15- electrical control box, 16- cable storage box, 17- hydraulic outrigger, 18- lithium titanate battery pack, 19- lithium battery charger, 20- cabin rotary lock, 21- shielding cabin body, 22-cabin corner, 23-shielded front door, 24-shielded rear door, 25-mounting cabinet, 26-cabinet shock absorber, 27-bulkhead interface adapter plate, 28-power supply and control interface board, 29-distribution box, 30-base, 31-translational slide rail, 32-translational rack, 33-electrical box, 34-elevation arm, 35-antenna mounting back frame, 36-waveguide rotation joint, 37-polarization rotation device, 38-cable drag chain, 39-cable holder. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments of the present invention include but are not limited to the following embodiments.

[0036] Example

[0037] like Figures 1 to 7 As shown, the present invention discloses an outdoor mobile multi-degree-of-freedom radiation automatic test vehicle, including a movable lifting platform 1 for fixing, moving and lifting the entire device, a shielding cabin 2 fixedly connected to the top of the movable lifting platform 1 for electrical equipment installation, environmental control, electromagnetic shielding, rain protection and sand protection, a test equipment assembly 4 arranged in the shielding cabin 2, an automatic antenna rack 3 fixed on the movable lifting platform 1 and located on one side of the shielding cabin 2 for antenna switching, pitch and polarization rotation operations, and a variety of test antennas 5 connected to the automatic antenna rack 3.

[0038] In this embodiment, the movable lifting platform 1 includes a main frame 10, a driving axle 11 arranged at the front end of the bottom of the main frame 10 for providing walking power for the whole vehicle, a steering axle 12 arranged at the rear end of the bottom of the main frame 10 for realizing the steering function, mast groups 13 fixed on both sides of the main frame 10 for realizing lifting, an installation platform 14 fixedly connected to the single masts on the inner side of the mast groups 13 on both sides, an electrical control box 15 arranged on the main frame 10 for controlling and displaying various working states of the whole vehicle, and a cable storage box 16 arranged on the main frame 10 and located below the installation platform 14.

[0039] In this embodiment, the movable lifting platform 1 further includes hydraulic legs 17 disposed at the four corners of the bottom of the main frame for realizing the function of crossing obstacles when the vehicle moves and ensuring the stability of high-altitude work.

[0040] In this embodiment, in the present invention, the movable lifting platform 1 also includes a lithium titanate battery pack 18 arranged in the main frame 10 for realizing the power-off running function of the whole vehicle, and a lithium battery charger 19 for charging the lithium titanate battery pack. When not connected to the mains, the entire device can also operate normally.

[0041] In actual use, since the installation platform of the movable lifting platform vehicle has a certain height from the ground, in order to facilitate the installation of equipment, cabin ladder hooks are arranged around the installation platform and a cabin ladder is configured.

[0042] In this embodiment, the shielding cabin 2 includes a shielding cabin body 21 fixed to the installation platform 14 by a cabin rotary lock 20, a cabin corner 22 connected to the shielding cabin body 21 for quick installation and removal of the cabin rotary lock 20, a shielding front door 23 and a shielding rear door 24 respectively opened on the front and rear sides of the shielding cabin body 21, an installation cabinet 25 arranged in the shielding cabin body 21, a cabinet shock absorber 26 connected between the inner bottom of the shielding cabin body 21 and the installation cabinet 25, a bulkhead interface adapter plate 27 and a power supply and control interface plate 28 arranged at the rear of the shielding cabin body 21, and a distribution box 29 arranged in the shielding cabin body 21 for realizing electrical management, control and power status monitoring and display functions of the equipment in the cabin; wherein, the test equipment assembly 4 is installed in the installation cabinet 25.

[0043] In this embodiment, an air conditioner 6 is also provided on the top of the shielding cabin 21 to achieve heat exchange between the inside and outside of the cabin and control the ambient temperature in the cabin, so as to ensure that the environment in which the equipment is located is suitable when working.

[0044] In this embodiment, the automatic antenna stand 3 includes a base 30 fixed on the mounting platform 14, two translation rails 31 arranged on the base 30, a translation rack 32 arranged between the two translation rails 31, an electrical box 33 connected to the translation rack 32 and slidably connected to the translation rail 31, an antenna mounting back frame 35 movably connected to both sides of the electrical box 33 through a pitch arm 34, a waveguide rotation joint 36 installed on the antenna mounting back frame 35 for realizing the polarization rotation function of the waveguide hard-connected antenna, a polarization rotation device 37 installed on the antenna mounting back frame 35, a cable drag chain 38 fixed on the outer wall of the electrical box 33, and a cable fixture 39 fixed on both side walls of the electrical box; wherein the test antenna 5 is installed on the antenna mounting back frame 35. The automatic antenna stand can simultaneously complete the pitch of multiple antennas, can independently complete the polarization rotation of each antenna, and can switch each antenna to the same central position, which is provided with a rangefinder and a measurement indication point, which can display the linear distance between the tested object and the antenna aperture. All electrical components in the automatic antenna rack are installed in a rainproof and shielded structure so that normal operation will not be disturbed by antenna signals.

[0045] When in use, first move the vehicle to the designated test position, and use the drive axle and steering axle to move the vehicle forward, backward, left, right, and steer. It is recommended that the vehicle be powered by batteries, or it can be powered by city electricity. At this time, at least two people are required to work together to prevent the power supply cables from entering the blind spot and being crushed. Through the outrigger operation button set on the electrical control box, multiple hydraulic outriggers can be extended with one click until the tires of the vehicle leave the ground and are completely supported by the hydraulic outriggers. Then operate the control button of each outrigger to adjust the installation platform to a horizontal level. Through the lifting button set on the electrical control box, adjust the center opening of the test antenna to the required test height. The height value can be displayed on the display screen of the control box, or confirmed by the mechanical scale on the side of the lifting mechanism.

[0046] Controlled by the wire control box of the antenna stand or the system software, when using the wire control box control, the control connector of the wire control box needs to be connected to the socket reserved on the vehicle first. This embodiment uses the manual operation of the wire control box as an example to illustrate, start the local control box, and confirm that the emergency stop switch is not pressed (press it for emergency stop); when the automatic antenna stand is in the stowed state (the typical state is that the pitch angle of the turntable is 90°), the antenna mouth faces the sky, press the initialization button, the turntable pitch angle will be adjusted to 0°, and the antenna mouth surface is horizontal. After the antenna enters the working state, the pitch angle can be adjusted within a certain angle range, and the pitch angle can be changed by positioning / fine-tuning. Positioning is to turn the positioning / fine-tuning switch to the positioning gear, set the target angle through the button, and then click the confirmation button. The turntable automatically reaches the set pitch or azimuth angle; fine-tuning is to turn the positioning / fine-tuning switch to the fine-tuning gear, and then press the up or down button, the turntable pitch starts to rotate, and releasing the button stops the rotation immediately.

[0047] Then switch the antenna. Use the antenna selection button on the wire control box to select different antennas and adjust their radiation apertures to the center working point.

[0048] Polarization rotation is then performed. For the antenna in the current working state, it can be rotated directly by operating the buttons on the wire control box. The polarization angle only needs to be maintained at 0° and 90°. For other antennas, if polarization is required, the corresponding antenna needs to be selected before polarization rotation can be performed.

[0049] After all tests are completed, click the Favorites button to first switch the antenna to the center, and then the turntable pitch angle will automatically adjust to the Favorites state.

[0050] Through the above design, the test assembly required for the test of the present invention is installed in the shielded cabin, which has a good external field and electromagnetic compatibility working environment, and mature market products can be selected, without customization for special application scenarios, which greatly reduces the hardware cost. Therefore, the present invention has outstanding substantial features and significant progress.

[0051] The above embodiment is only one of the preferred implementation modes of the present invention and should not be used to limit the protection scope of the present invention. Any changes or modifications that are made to the main design concept and spirit of the present invention and have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention.

Claims

1. An outdoor mobile multi-degree-of-freedom radiation automatic test vehicle, characterized in that: The invention comprises a movable lifting platform (1) for fixing, moving and lifting the entire device, a shielding cabin (2) fixedly connected to the top of the movable lifting platform (1) for electrical equipment installation, environmental control, electromagnetic shielding, rain and sand protection, a test equipment assembly (4) arranged in the shielding cabin (2), an automatic antenna frame (3) fixed on the movable lifting platform (1) and located on one side of the shielding cabin (2) for antenna switching, pitching and polarization rotation operations, and a plurality of test antennas (5) connected to the automatic antenna frame (3); The shielding cabin (2) comprises a shielding cabin body (21) fixed to the installation platform (14) by a cabin rotary lock (20), a cabin corner (22) connected to the shielding cabin body (21) for quick installation and removal of the cabin rotary lock (20), a shielding front door (23) and a shielding rear door (24) respectively provided on the front and rear surfaces of the shielding cabin body (21), an installation cabinet (25) arranged in the shielding cabin body (21), a cabinet shock absorber (26) connected between the inner bottom of the shielding cabin body (21) and the installation cabinet (25), a bulkhead interface adapter plate (27) and a power supply and control interface plate (28) arranged at the rear of the shielding cabin body (21), and a distribution box (29) arranged in the shielding cabin body (21) for realizing electrical management, control and power supply status monitoring and display functions of the equipment in the cabin; wherein the test equipment assembly (4) is installed in the installation cabinet (25); The automatic antenna stand (3) comprises a base (30) fixed on a mounting platform (14), two translation rails (31) arranged on the base (30), a translation rack (32) arranged between the two translation rails (31), an electrical box (33) connected to the translation rack (32) and slidably connected to the translation rail (31), an antenna mounting back frame (35) movably connected to both sides of the electrical box (33) via a pitch support arm (34), a waveguide rotation joint (36) mounted on the antenna mounting back frame (35) for realizing a polarization rotation function of a waveguide hard-connected antenna, a polarization rotation device (37) mounted on the antenna mounting back frame (35), a cable drag chain (38) fixed on the outer side wall of the electrical box (33), and a cable holder (39) fixed on both side walls of the electrical box; wherein the test antenna (5) is mounted on the antenna mounting back frame (35); The installation platform (14) is provided with cabin ladder hooks around its periphery and is equipped with a cabin ladder.

2. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 1, characterized in that: The movable lifting platform (1) comprises a main frame (10), a driving axle (11) arranged at the front end of the bottom of the main frame (10) for providing walking power for the whole vehicle, a steering axle (12) arranged at the rear end of the bottom of the main frame (10) for realizing a steering function, mast groups (13) fixed on both sides of the main frame (10) for realizing lifting, a mounting platform (14) fixedly connected to the single masts inside the mast groups (13) on both sides, an electrical control box (15) arranged on the main frame (10) for controlling and displaying various working states of the whole vehicle, and a cable storage box (16) arranged on the main frame (10) and located below the mounting platform (14).

3. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 2 is characterized in that: The movable lifting platform (1) further comprises hydraulic legs (17) arranged at the four corners of the bottom of the main frame and used to enable the whole vehicle to cross obstacles when moving and to ensure stability during high-altitude working.

4. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 3 is characterized in that: The movable lifting platform (1) also includes a lithium titanate battery pack (18) arranged in the main frame (10) for realizing the function of the whole vehicle to travel without power, and a lithium battery charger (19) for charging the lithium titanate battery pack.

5. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 4, characterized in that: A manual pump (8) for emergency adjustment of the height of the installation platform is also provided below the main frame (10).

6. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 5, characterized in that: An air conditioner (6) is also provided on the top of the shielding cabin (21) for achieving heat exchange between the interior and exterior of the cabin and controlling the ambient temperature within the cabin.

7. The field mobile multi-degree-of-freedom radiation automatic test vehicle according to claim 6, characterized in that: The antenna mounting back frame (35) is also provided with a plurality of laser rangefinders (7) for detecting the distance between the antenna and the object to be measured.

8. A method for using an outdoor mobile multi-degree-of-freedom radiation automatic test vehicle as claimed in any one of claims 1 to 7, characterized in that: The steps include: The method for using the automatic test vehicle comprises the following steps: (S1) Move the vehicle to the designated test location; (S2) Setting up the movable lifting platform to the working position; (S3) Adjust the central aperture of the test antenna to the required test height; (S4) controlling the automatic antenna stand through the electrical box to adjust the angle of the test antenna; (S5) switching and polarization rotation of the antenna are realized through the electrical box; (S6) After the test is completed, the antenna is adjusted to the stowed state.

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