A vehicle-mounted test platform for inertial navigation systems

Abstract

The present invention discloses an on-board test platform for an inertial navigation system, comprising a vehicle body, a roof and an on-board power supply system, wherein the surrounding side of the vehicle body is provided with an adjustment component for adjusting the level and / or height of the vehicle body; a vehicle body slide rail is provided inside the vehicle body, and a mounting platform for mounting test equipment is slidably mounted on the vehicle body slide rail; an on-board air conditioner and a retractable antenna rack are installed on the roof, and the on-board air conditioner is used to perform air conditioning on the vehicle body; a deflector is provided on the roof in front of the antenna rack, and the height of the deflector is higher than the height of the retracted antenna rack. The on-board test platform for an inertial navigation system of the present invention has the advantages of rich functions, strong versatility, high comfort, sustainable power supply and little influence by the external environment.

Description

Technical Field

[0001] The invention mainly relates to the technical field of inertial navigation system test platform, in particular to an inertial navigation system vehicle-mounted test platform. Background Art

[0002] In recent years, inertial navigation systems have become an important development direction of inertial navigation technology due to their advantages of small size, light weight, large dynamic range and high reliability. They are currently widely used in military, civil and commercial fields, especially in the airborne field. Their excellent performance has been widely recognized and they have been successfully applied to many aircraft types such as fighter jets, bombers, transport aircraft and helicopters.

[0003] The inertial navigation test technology for functional testing, performance and accuracy evaluation, and error identification of the inertial navigation system is the basis for the production and application of the inertial navigation system. Only by accurately testing and evaluating the inertial navigation system first can we talk about successful application. Among them, vehicle-mounted testing is a very important part of the testing and evaluation of the inertial navigation system. The vehicle-mounted test platform can create a motion simulation environment for the research of inertial navigation systems in various fields such as inertial navigation, satellite navigation, bionic navigation, visual navigation, gravity measurement, etc.

[0004] Traditional inertial navigation system vehicle-mounted test platforms usually simply process the vehicle and place an aluminum base plate inside the vehicle for equipment installation. The installation platform has poor versatility. When driving, the test equipment is powered by an inverter / charger that inverts the vehicle battery. The power is relatively small and it is easy to run out of power. In addition, the working time depends on the capacity of the vehicle battery, and the test equipment cannot be powered for a long time. When the inertial navigation system needs to be statically debugged during the vehicle-mounted test, the car's built-in air conditioner is used, and the car generator needs to work at idle speed. The air conditioning effect is poor and it is easy to cause carbon deposits in the car engine. The GNSS antenna on the roof is directly glued to the top of the vehicle. The height is not enough and it is easily blocked by large vehicles and cannot search for satellite signals. In addition, the functionality and comfort of the entire vehicle-mounted test platform are relatively poor. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the present invention provides an inertial navigation system vehicle-mounted test platform with rich functions and strong versatility.

[0006] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0007] An on-board test platform for an inertial navigation system comprises a vehicle body, a roof and an on-board power supply system, wherein the surrounding side of the vehicle body is provided with an adjustment component for adjusting the level and / or height of the vehicle body; a vehicle body slide rail is provided inside the vehicle body, and a mounting platform for mounting a test device is slidably mounted on the vehicle body slide rail; an on-board air conditioner and a retractable antenna rack are installed on the vehicle roof, and the on-board air conditioner is used for air conditioning the vehicle body; and a deflector is provided on the roof in front of the antenna rack, and the height of the deflector is higher than the height of the antenna rack after being retracted.

[0008] As a further improvement of the above technical solution:

[0009] A roof rail for installing test equipment is installed at the front of the roof; a sunshade is arranged on one side and / or both sides of the roof; an openable and closable skylight is arranged in the middle of the roof; and guardrails are arranged around the roof.

[0010] The rear side of the vehicle body is provided with double flash lights and a rear ladder; the front side of the vehicle body is installed with a multi-probe driving recorder for recording and storing the external environment around the vehicle body.

[0011] A partition wall is arranged in the vehicle body for dividing the vehicle body into a cockpit and a test cabin. The vehicle body slide rail is installed in the test cabin. A storage cabinet is also installed in the test cabin. A vehicle-mounted power supply system is installed in the storage cabinet.

[0012] The antenna frame includes an antenna head, a support rod and an adapter plate, the support rod is hollow, a top plate is installed on the top end of the support rod, a through hole is provided on the top plate which is connected to the internal cavity of the support rod, a joint is provided on the antenna head, the antenna head is sealingly installed on the top plate and the joint is located in the through hole; a bottom plate is provided at the bottom end of the support rod, one side of the bottom plate is rotatably connected to one side of the adapter plate, a fastening mechanism is provided between the bottom plate and the adapter plate, which is used to fasten the bottom plate to the adapter plate and make the bottom plate rotate around the adapter plate when the support rod is subjected to external force.

[0013] The fastening mechanism includes screws or bolts, the adapter plate is provided with screw holes, the base plate is provided with mounting holes, the screws or bolts pass through the mounting holes on the base plate and are threadedly connected with the screw holes on the adapter plate; the mounting holes are provided with a notch on the side away from the rotation position of the base plate and the adapter plate.

[0014] A limiting block is provided on the bottom side of the base plate, a limiting groove is provided on the adapter plate, and the limiting block is located in the limiting groove; a sealing groove is provided on the side of the antenna head in contact with the top plate, and a waterproof sealing ring is provided in the sealing groove; reinforcing ribs arranged along the axial direction are provided on the outer wall of the support rod; one side of the base plate is rotatably connected to one side of the adapter plate through a hinge; a wire entry hole is provided on the support rod at a position close to the base plate.

[0015] It also includes a lodging support assembly for supporting the support rod after lodging; the lodging support assembly includes a support seat and a U-shaped spring sheet located on the support seat; the height of the support seat is greater than a preset height so that the bottom end of the support rod after lodging gradually tilts upward toward the top end.

[0016] The vehicle-mounted power supply system includes a vehicle-mounted generator, an AC switching switch, an inverter-charger, a vehicle-mounted battery and a backup power supply line. The input end of the AC switching switch is respectively connected to the vehicle-mounted generator and the mains power to achieve switching between the vehicle-mounted generator and the mains power. The output end of the AC switching switch is connected to the inverter-charger; the vehicle-mounted battery is connected to the inverter-charger, and the output end of the inverter-charger is used to be connected to a load; the backup power supply line includes a car generator, a car battery and a vehicle-mounted DC charger connected in sequence, and the output end of the vehicle-mounted DC charger is connected to the vehicle battery.

[0017] The vehicle-mounted battery is a lithium battery, the lithium battery is connected to a battery monitor, and the battery monitor is provided with a Bluetooth interface.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The inertial navigation system vehicle test platform of the present invention is equipped with a vehicle air conditioner on the top. When the vehicle is parked for debugging, it is no longer necessary to start the vehicle's built-in air conditioner while the vehicle engine is idling, thereby not causing carbon deposits in the vehicle engine. The vehicle built-in air conditioner can also be turned on simultaneously with the vehicle's built-in air conditioner to enhance the air conditioning effect. A deflector is arranged on the roof in front of the antenna frame, and the height of the deflector is higher than the height of the antenna frame after it is collapsed. During the movement of the vehicle, the antenna frame will not generate resistance with the vehicle. An adjustment component for adjusting the level and / or height of the vehicle body is installed at the bottom of the vehicle, which can be opened when the vehicle is parked for a long time, and can effectively avoid compression and deformation of the chassis. In-vehicle slide rails are laid in the vehicle body, and the spacing and specifications are consistent with those of aircraft used for airborne tests. The equipment is easy to install, the degree of freedom is large, the aviation equipment can be directly installed, and the versatility is strong. The multifunctional installation platform is installed on the in-vehicle slide rails, which is convenient for installing some non-universal equipment, easy to disassemble and assemble, and can be used flexibly.

[0020] In the inertial navigation system vehicle test platform of the present invention, the antenna head of the antenna rack is installed on the roof through the support rod, so that the reliability of the antenna head receiving signals is guaranteed; the bottom of the support rod is rotatably connected to the adapter plate, so that the support rod can be inverted on the roof when not in use, thereby saving occupied volume; in addition, the fastening mechanism can separate the bottom plate on the support rod from the adapter plate when the support rod is subjected to external force, thereby improving the safety of vehicle driving.

[0021] In the vehicle-mounted test platform for the inertial navigation system of the present invention, the fastening mechanism in the antenna frame includes a notch provided on the side of the mounting hole away from the rotation position of the bottom plate and the adapter plate. When the support rod is hit by foreign objects (tree branches, bridges, etc.) during the driving of the vehicle, each screw can be disengaged from the notch, so that the support rod falls down, thereby preventing the support rod and the antenna head from being damaged. In addition, a limit block is provided on the bottom side of the bottom plate, and a limit slot is provided on the adapter plate. The limit block is located in the limit slot, so that when the support rod is erected, its connection reliability is guaranteed and shaking and the like will not occur.

[0022] The inertial navigation system vehicle-mounted test platform of the present invention has reinforcing ribs arranged in the circumferential direction of the bottom of the support rod, thereby strengthening the strength of the support rod and ensuring that the antenna head at the top thereof does not shake.

[0023] The inertial navigation system vehicle test platform of the present invention can realize the switching of the vehicle-mounted generator or the mains power through the AC switching switch, realize the power supply of the load and the charging of the vehicle-mounted battery; when the vehicle-mounted generator cannot supply power, the vehicle-mounted battery inverts power to supply power to the load; when there is no shore power and the silent gasoline generator fails, the vehicle-mounted battery is charged by the automobile generator, and then the inverter charging integrated machine inverts power to the load; through the above-mentioned overall optimized configuration, the working reliability of the system is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural diagram of the present invention in an embodiment.

[0025] Figure 2 It is a top view of the present invention in an embodiment.

[0026] Figure 3 It is a structural diagram of the interior of the vehicle body of the present invention in an embodiment.

[0027] Figure 4 FIG. 1 is a schematic structural diagram of an antenna stand according to an embodiment of the present invention.

[0028] Figure 5 for Figure 4 A partial enlarged view of .

[0029] Figure 6 FIG. 1 is a schematic structural diagram of an antenna stand according to an embodiment of the present invention.

[0030] Figure 7 FIG. 4 is a schematic diagram of the structure of the antenna head of the present invention in an embodiment.

[0031] Figure 8 It is a schematic diagram of the installation structure of the antenna head of the present invention in an embodiment.

[0032] Fig. 9 It is a schematic structural diagram of the lodging support assembly in an embodiment of the present invention.

[0033] Fig.10 Schematic diagram of the antenna rack in the embodiment of the present invention in a lying state.

[0034] Fig.11 It is a block diagram of the vehicle power supply system in the present invention.

[0035] The numbers in the figure indicate: 1, vehicle body; 11, slide rails in the vehicle; 12, partition wall; 13, desk; 14, locker; 15, flip table; 16, table and chair; 17, installation platform; 19, sofa; 110, flip seat; 111, cable tray; 112, fire fighting equipment; 113, air pump; 114, maintenance tools; 115, five-hole socket; 117, distribution box; 119, lighting; 120, thermometer and hygrometer; 121 , barometric altimeter; 122, coat hook; 123, in-car navigation; 124, reversing image; 125, driving recorder; 126, tire pressure monitoring device; 2, roof; 21, roof platform; 22, rear ladder; 23, adjustment component; 24, air conditioning; 25, guardrail; 26, awning; 27, outlet elbow; 28, roof rail; 29, sunroof; 210, double flash lights; 211, chassis; 212, deflector; 3, Antenna frame; 31, antenna head; 3101, joint; 3102, sealing groove; 3103, waterproof sealing ring; 32, support rod; 3201, top plate; 32011, through hole; 3202, bottom plate; 32021, limit block; 32022, mounting hole; 32023, notch; 3203, reinforcement rib; 3204, wire entry hole; 33, adapter plate; 3301, limit groove; 34, fastening mechanism; 3401, screw Nail; 35. Hinge; 36. Lodging support assembly; 3601. Support seat; 3602. U-shaped spring sheet; 4. Vehicle power system; 41. Vehicle generator; 42. AC switch; 43. Inverter charger; 431. Control panel; 432. Computer interface; 44. Vehicle battery; 45. Automobile generator; 46. Automobile battery; 47. Vehicle DC charger; 48. Battery monitor; 481. Bluetooth interface. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 3As shown, the inertial navigation system vehicle-mounted test platform of this embodiment includes a vehicle body 1, a roof 2 and a vehicle-mounted power supply system 4. A vehicle body 1 slide rail is arranged inside the vehicle body 1, and an installation platform 17 for installing test equipment is slidably installed on the vehicle body 1 slide rail; a roof platform 21 is arranged on the roof 2, and a vehicle-mounted air conditioner 24 and a retractable antenna rack 3 are installed on the roof platform 21, and the vehicle-mounted air conditioner 24 is used for air conditioning the vehicle body 1; a deflector 212 is arranged on the roof 2 in front of the antenna rack 3, and the height of the deflector 212 is higher than the height of the antenna rack 3 after being retracted.

[0038] In this embodiment, a roof platform 21 is provided on the roof 2 to enhance the load-bearing capacity of the roof 2, facilitate the installation of equipment on the roof 2 and the walking of operators, and a guardrail 25 is provided on the periphery of the roof 2 to ensure the safety of operators and equipment. From front to back, a roof rail 28, an openable skylight 29, and a roof-mounted vehicle air conditioner 24 are provided on the roof 2 in sequence. The roof rail 28 can be used to install some equipment that needs to be placed on the roof 2 for testing; the openable skylight 29 increases the light transmittance inside the entire vehicle body 1 and improves the comfort level; the roof-mounted vehicle air conditioner 24 is powered by shore power or a silent gasoline generator on the vehicle. When parking and debugging, it is no longer necessary to start the vehicle's built-in air conditioner at idle speed, thereby not causing carbon accumulation in the vehicle engine. The roof-mounted air conditioner 24 has high power and good effect, and can also be turned on at the same time as the vehicle's built-in air conditioner to enhance the air conditioning effect. The retractable antenna rack 3 installed on the left side of the front of the roof 2 is usually in a retracted state. When the GNSS antenna is needed, the test personnel will stand it up and fix it, and then install the GNSS antenna on the top. The GNSS antenna is 3.8m to 4m above the ground. The satellite signal will not be blocked by the surrounding large vehicles during the vehicle-mounted test. The retractable antenna rack 3 has a stable structure and strong rigidity. It will not produce obvious shaking during driving, causing test errors; the roof 2 is provided with a deflector 212 in front of the antenna rack 3. The height of the deflector 212 is higher than the height of the retracted antenna rack 3. During the vehicle's movement, the antenna rack 3 will not generate resistance with the vehicle. A sunshade 26 is installed on the right side of the top. If there is rain or snow during the outdoor test, the ground debugging work will not be affected. The outlet elbow 27 is installed on the roof 2 to facilitate the wiring inside and outside the vehicle. An adjustment component 23 for adjusting the level and / or height of the vehicle body 1 is installed at the bottom of the vehicle. Specifically, the adjustment component 23 includes four hydraulic leveling legs located on the chassis 211 of the vehicle body 1, which can be opened when parking for a long time, and can effectively prevent the chassis 211 from being compressed and deformed.

[0039] In this embodiment, a yellow double flash light 210 is installed on the upper rear of the vehicle body 1. When the vehicle speed of the vehicle test is relatively low, turning on the yellow double flash light 210 can better serve as a warning to prevent the rear vehicle from rear-ending. A rear ladder 22 is installed on the left rear door of the vehicle body 1 to facilitate the test personnel to go up to the roof 2 for operation. The step ladder is equipped with an anti-slip layer to ensure the safety of personnel going up and down. An external power supply interface is reserved at the right rear of the vehicle body 1 for shore power to supply power to the vehicle load.

[0040] In this embodiment, a partition wall 12 is provided inside the vehicle body 1 to divide the vehicle body 1 into a cockpit and a test cabin, and a lighting lamp 119 is installed above the vehicle body 1. The cockpit is equipped with a vehicle navigation system 123, a reversing image 124, a tire pressure monitoring device 126, a driving recorder 125, and firefighting equipment 112, which provide strong protection for driving safety. The multi-probe driving recorder 125 can also record and store the external environment of the entire test process in real time, providing certain materials for the analysis of the later test data. The isolation wall 12 is molded with the curvature of the inner wall of the vehicle to ensure that it can fit closely with the curvature of the car compartment. The isolation wall 12 is soundproofed during production to prevent the driver from being affected while driving. A small sliding window is installed in the middle of the isolation wall 12 to facilitate communication between the test personnel and the driver. A wiring hole with a rubber plug is left on the side of the seat at the bottom of the isolation wall 12. A coat hook 122, a thermometer and hygrometer 120 and a barometer and altimeter 121 are installed on one side of the test cabin of the isolation wall 12. The thermometer and hygrometer 120 and the barometer and altimeter 121 can record the temperature, humidity and altitude during the vehicle test, which can be used as material for later data processing.

[0041] There is a sofa 19 on the left side of the test cabin, close to the isolation wall 12, which can accommodate 2-3 people. The sofa 19 is equipped with a safety belt to ensure the safety of the test personnel during driving. There is a storage box under the seat of the entire sofa 19, which contains a cable reel 111, an air pump 113 and maintenance tools 114. The seat can be lifted up when things need to be taken or put. There is a desk 13 in front of the sofa 19, which can be used as a temporary office for test personnel during vehicle-mounted tests. There are five-hole sockets 115 and a DC power supply on the wall, which can power laptops and test equipment. Two flip seats 110 are installed on the inner wall of the vehicle in front of the desk 13, which is convenient for test personnel to sit there and observe the operation of the test equipment in real time. The flip seats 110 are in a folded state when not in use and are attached to the inner wall of the vehicle, which greatly saves space in the vehicle. Opposite the two flip seats 110, on the other side of the vehicle, there is also a flip seat 110 installed, and is equipped with a flip table 15. The flip table 15 is fixed on the storage cabinet 14. The storage cabinet 14 is provided with a table and chairs 16 on one side opposite to the flip table 15. This set of flip tables and chairs is close to the equipment installation area in the test cabin, which is convenient for debugging, observation and data collection of the test equipment.

[0042] The locker 14 is placed at the right rear of the vehicle, close to the side wall and rear door of the vehicle. The locker 14 is equipped with a vehicle-mounted power supply system 4, and the above-mentioned equipment control panel is embedded in the surface of the locker 14 for easy operation and observation. The locker 14 door has a shock-absorbing and locking mechanism, and the cabinet is equipped with a shock-proof protective layer and a locking rope. The locking rope can fix the items stored in the cabinet to prevent noise during driving. Hooks are installed at the lower position of the side walls on both sides of the test cabin, which can be used to fix equipment packaging boxes, etc. The entire interior floor of the test cabin is paved with an in-vehicle slide rail 11, and the spacing and specifications are consistent with those of the aircraft used for airborne tests. The equipment is easy to install, with a large degree of freedom, and aviation equipment can be directly installed, with strong versatility. The multifunctional installation platform 17 is installed on the in-vehicle slide rail 11, which is convenient for installing some non-universal equipment. This platform is easy to disassemble and assemble and can be used flexibly. Seats can also be installed on the in-vehicle slide rail 11. The test cabin floor is paved with plastic flooring, which is beautiful, wear-resistant and easy to clean. The height of the entire floor is 2mm lower than the highest point of the slide rail to prevent wear on the floor during equipment installation.

[0043] like Figures 4 to 10 As shown, in this embodiment, the antenna frame 3 includes an antenna head 31, a support rod 32 and an adapter plate 33. The support rod 32 is hollow and has a cavity inside. A top plate 3201 is installed on the top of the support rod 32. A through hole 32011 is provided on the top plate 3201 and communicates with the internal cavity of the support rod 32. A joint 3101 is provided on the antenna head 31. The antenna head 31 is sealed and installed on the top plate 3201 and the joint 3101 is located in the through hole 32011; a bottom plate 3202 is provided at the bottom end of the support rod 32, one side of the bottom plate 3202 is rotatably connected to one side of the adapter plate 33, and a fastening mechanism 34 is provided between the bottom plate 3202 and the adapter plate 33, which is used to fasten the bottom plate 3202 to the adapter plate 33 and make the bottom plate 3202 rotate around the adapter plate 33 when the support rod 32 is subjected to external force. In the inverted antenna rack for a vehicle roof of the present invention, the antenna head 31 is installed on the vehicle roof through the support rod 32, thereby ensuring the reliability of the antenna head 31 in receiving signals; the bottom of the support rod 32 is rotatably connected to the adapter plate 33, so that the support rod 32 can be inverted on the vehicle roof when not in use, thereby saving occupied volume; in addition, the fastening mechanism 34 can separate the bottom plate 3202 on the support rod 32 from the adapter plate 33 when the support rod 32 is subjected to external force, thereby improving the safety of vehicle driving.

[0044] like Figures 4 to 6As shown, in this embodiment, one side of the bottom plate 3202 is rotatably connected with one side of the adapter plate 33 through a hinge 35; the fastening mechanism 34 includes screws 3401 (or bolts), screw holes are provided at the four corners of the adapter plate 33 (where the adapter plate 33 is fastened to the roof by bolts and the installation strength is ensured), and mounting holes 32022 are installed at the four corners of the bottom plate 3202. The screws 3401 pass through the mounting holes 32022 on the bottom plate 3202 and are threadedly connected with the screw holes on the adapter plate 33; the mounting holes 32022 are provided with a quarter notch 32023 on the side away from the rotation position of the bottom plate 3202 and the adapter plate 33. During installation, after the support rod 32 is erected, the bottom plate 3202 and the adapter plate 33 are tightly attached and fastened to each other by screws 3401 to ensure the reliability of the installation of the support rod 32. When it is necessary to fall down, loosen each screw 3401, so that the support rod 32 rotates and falls down on the roof. Since a notch 32023 is provided on the side of the mounting hole 32022 away from the rotation position of the bottom plate 3202 and the adapter plate 33, when the support rod 32 is hit by foreign objects (tree branches, bridges, etc.) during the driving of the vehicle, each screw 3401 can be disengaged from the notch 32023, so that the support rod 32 falls down, thereby preventing the support rod 32 and the antenna head 31 from being damaged. In addition, a limit block 32021 is provided on the bottom side of the bottom plate 3202, and a limit slot 3301 is provided on the adapter plate 33. The limit block 32021 is located in the limit slot 3301, so that when the support rod 32 stands up, its connection reliability is guaranteed and there will be no shaking or the like.

[0045] In this embodiment, the height of the support rod 32 is about 1.2 to 1.4 meters, and a retractable support rod 32 can be used; the material of the support rod 32 is 304 stainless steel tube. In order to strengthen the support rod 32 to ensure that the antenna head 31 at the top does not shake, a reinforcing rib 3203 is provided on the circumferential side of the bottom of the support rod 32.

[0046] like Figure 7 and Figure 8 As shown, in this embodiment, the mounting surface of the antenna head 31 and the top surface of the top plate 3201 are mounted in contact with each other, and an annular sealing groove 3102 is provided on the mounting surface of the antenna head 31. The radius corresponding to the annular sealing groove 3102 is larger than the through hole 32011 of the top plate 3201, and a waterproof sealing ring 3103 is provided in the sealing groove 3102. The antenna head 31 is specifically fastened to the top plate 3201 by bolts, and the waterproof sealing ring 3103 is crimped on the top plate 3201, thereby forming a seal for the through hole 32011 on the top plate 3201, preventing water from entering the support rod 32 from the through hole 32011 and damaging the antenna head 31.

[0047] like Fig. 9 and Fig.10As shown, in this embodiment, after the support rod 32 falls over, the fallen support rod 32 is supported by a falling support assembly 36 arranged on the roof. The falling support assembly 36 includes a support seat 3601 and a U-shaped spring sheet 3602 located on the support seat 3601, wherein the support seat 3601 is installed on the roof. After the support rod 32 falls over, the support rod 32 is clamped by the U-shaped spring sheet 3602 to prevent shaking during driving. In addition, a wire entry hole 3204 is provided at a position of the support rod 32 close to the bottom plate 3202, and the wire is connected to the connector 3101 of the antenna head 31 after entering through the wire entry hole 3204. In order to prevent rainwater from entering the support rod 32 through the wire entry hole 3204 of the fallen support rod 32 and then entering the antenna head 31, the support seat 3601 is designed to a certain height so that the bottom end of the fallen support rod 32 gradually tilts upward toward the top end.

[0048] like Fig.11 As shown, in this embodiment, the vehicle power supply system 4 includes a vehicle generator 41, an AC switching switch 42, an inverter charging integrated machine 43, a vehicle battery 44 and a backup power supply line. The input end of the AC switching switch 42 is respectively connected to the vehicle generator 41 and the mains, for realizing the switching between the vehicle generator 41 and the mains, and the output end of the AC switching switch 42 is connected to the inverter integrated machine; the vehicle battery 44 is connected to the inverter integrated machine, and the output end of the inverter integrated machine is connected to the load; the backup power supply line includes a car generator 45, a car battery 46 and a vehicle DC charger 47 connected in sequence, and the output end of the vehicle DC charger 47 is connected to the vehicle battery 44.

[0049] Specifically, the on-board generator 41 is hung on the chassis 211, and the smoke exhaust channel is located outside the vehicle body 1, which saves space in the vehicle body 1 and ensures that the on-board generator 41 can work normally when the vehicle is running. The AC switching switch 42 (such as a conventional dual power switch on the market) can switch the shore power and the on-board generator 41 to supply power to the inverter charging integrated machine 43. The switching time is very short and sensitive loads will not be interrupted; under normal circumstances, the shore power or the on-board generator 41 (such as a silent gasoline or diesel generator) supplies power to the AC and DC loads through the inverter charging integrated machine 43 (conventional products on the market), and charges the on-board battery 44. When the on-board generator 41 is unable to generate electricity during driving, the inverter charging integrated machine 43 automatically switches to the inverter mode, and the on-board battery 44 inverts the power to supply power to the load. Since the switching time is very short, it will not affect the operation of the load. The inverter charger 43 can set a maximum output current through the computer interface 432, avoiding unlimited power from shore power or silent gasoline generators; the inverter charger 43 is equipped with a control panel 431, which can display the working status of the inverter charger 43, the charging status of the vehicle battery 44 and related alarm indications. The control panel 431 is installed on a distribution board or a control console, which is small and beautiful. The inverter charger 43 does not need to be exposed to the outside, thereby improving the safety of the vehicle power supply system 4; the function of the computer interface 432 is to configure the relevant parameters of the inverter charger 43 through a computer, which is convenient and quick; the vehicle battery 44 uses a lithium battery, which is small and light.

[0050] The car generator 45 is connected to the on-board DC charger 47 through the car battery 46, and the on-board DC charger 47 is connected to the on-board battery 44, which is equivalent to the car generator 45 charging the on-board battery 44, and is a backup line. When there is no shore power and the silent gasoline generator fails, the car generator 45 charges the on-board battery 44, and then the inverter charging integrated machine 43 inverts and supplies power to the load, thereby improving the reliability of the entire on-board power supply system 4. The on-board DC charger 47 can charge the on-board battery 44 with a preset voltage and current, avoiding excessively high and low charging voltages, and solving the problem that the charging method of the on-board battery 44 through a traditional isolator cannot adjust the charging voltage and current. The on-board DC charger 47 has an engine start detection device, which avoids the discharge of the car generator 45 when the car battery 46 is not powered, and prevents the car battery 46 from running out of power, causing the vehicle to be unable to start.

[0051] The above optimization scheme can realize the switching of the vehicle-mounted generator 41 or the mains power through the AC switching switch 42, thereby realizing the power supply of the load and the charging of the vehicle-mounted battery 44; when the vehicle-mounted generator 41 cannot supply power, the vehicle-mounted battery 44 inverts power to supply power to the load; when there is no shore power and the silent gasoline generator fails, the vehicle-mounted battery 44 is charged by the car generator 45, and then the inverter charging integrated machine 43 inverts power to supply power to the load; through the above overall optimization configuration, the working reliability of the system is improved.

[0052] In this embodiment, the vehicle battery 44 is connected to the battery monitor 48, and the battery monitor 48 has a Bluetooth interface 481. The battery monitor 48 can display the actual status of the vehicle battery 44, the usage time of the vehicle battery 44 under the current load condition, indicate the voltage, current, temperature, and store historical data. The battery monitor 48 has a Bluetooth interface 481, and the power supply system status information can be viewed through the mobile phone APP, and alarm information can be automatically sent, and remote equipment diagnosis and maintenance can be performed.

[0053] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An inertial navigation system vehicle test platform, characterized in that: The vehicle comprises a vehicle body (1), a roof (2) and a vehicle power supply system (4), wherein an adjustment component (23) for adjusting the level and / or height of the vehicle body (1) is arranged on the periphery of the vehicle body (1); a vehicle body slide rail (11) is arranged inside the vehicle body (1), and a mounting platform (17) for mounting a test device is slidably mounted on the vehicle body slide rail (11); an on-board air conditioner (24) and a collapsible antenna rack (3) are mounted on the roof (2), and the on-board air conditioner (24) is used to perform air conditioning on the vehicle body (1); a deflector (212) is arranged on the roof (2) in front of the antenna rack (3), and the height of the deflector (212) is higher than the height of the antenna rack (3) after collapsing; The antenna frame (3) comprises an antenna head (31), a support rod (32) and an adapter plate (33); the support rod (32) is hollow; a top plate (3201) is mounted on the top of the support rod (32); a through hole (32011) is provided on the top plate (3201) and is in communication with the inner cavity of the support rod (32); a joint (3101) is provided on the antenna head (31); the antenna head (31) is sealed and mounted on the top plate (3201) and the joint (3101) is sealed and mounted on the top plate (3201). 101) is located in the through hole (32011); a bottom plate (3202) is provided at the bottom end of the support rod (32); one side of the bottom plate (3202) is rotatably connected to one side of the adapter plate (33); a fastening mechanism (34) is provided between the bottom plate (3202) and the adapter plate (33), and is used to fasten the bottom plate (3202) to the adapter plate (33) and to enable the bottom plate (3202) to rotate around the adapter plate (33) when the support rod (32) is subjected to an external force; The vehicle-mounted power supply system (4) comprises a vehicle-mounted generator (41), an AC switch (42), an inverter-charger (43), a vehicle-mounted battery (44) and a backup power supply line. The input end of the AC switch (42) is respectively connected to the vehicle-mounted generator (41) and the mains power supply, and is used to realize the switching between the vehicle-mounted generator (41) and the mains power supply. The output end of the AC switch (42) is connected to the inverter-charger (43). The vehicle-mounted battery (44) is connected to the inverter-charger (43), and the output end of the inverter-charger (43) is used to be connected to a load. The backup power supply line comprises a vehicle generator (45), a vehicle battery (46) and a vehicle-mounted DC charger (47) which are connected in sequence. The output end of the vehicle-mounted DC charger (47) is connected to the vehicle-mounted battery (44).

2. The inertial navigation system vehicle test platform according to claim 1, characterized in that: A roof slide rail (28) for mounting a test device is installed at the front of the vehicle roof (2); a sunshade (26) is provided on one side and / or both sides of the vehicle roof (2); an openable and closable skylight (29) is provided in the middle of the vehicle roof (2); and guardrails (25) are provided around the periphery of the vehicle roof (2).

3. The inertial navigation system vehicle test platform according to claim 1, characterized in that: The rear side of the vehicle body (1) is provided with double flash lights (210) and a rear ladder (22); the front side of the vehicle body (1) is provided with a multi-probe driving recorder (125) for recording and storing the external environment around the vehicle body (1).

4. The inertial navigation system vehicle-mounted test platform according to claim 1, characterized in that: A partition wall (12) is provided in the vehicle body (1) for dividing the vehicle body (1) into a driving cabin and a test cabin. The vehicle body (1) slide rail is installed in the test cabin. A storage cabinet (14) is also installed in the test cabin. The storage cabinet (14) has an on-board power supply system (4) installed in it.

5. The inertial navigation system vehicle-mounted test platform according to any one of claims 1 to 4, characterized in that: The fastening mechanism (34) comprises a screw (3401) or a bolt, a screw hole is provided on the adapter plate (33), a mounting hole (32022) is installed on the base plate (3202), the screw (3401) or the bolt passes through the mounting hole (32022) on the base plate (3202) and is threadedly connected to the screw hole on the adapter plate (33); the mounting hole (32022) is provided with a notch (32023) on a side away from the rotation position of the base plate (3202) and the adapter plate (33).

6. The inertial navigation system vehicle-mounted test platform according to any one of claims 1 to 4, characterized in that: A limiting block (32021) is arranged on the bottom side of the bottom plate (3202), a limiting groove (3301) is arranged on the adapter plate (33), and the limiting block (32021) is located in the limiting groove (3301); a sealing groove (3102) is arranged on the side of the antenna head (31) that contacts the top plate (3201), and a waterproof sealing ring (3103) is arranged in the sealing groove (3102); a reinforcing rib (3203) arranged along the axial direction is arranged on the outer wall of the support rod (32); one side of the bottom plate (3202) is rotatably connected to one side of the adapter plate (33) via a hinge (35); and a wire entry hole (3204) is arranged on the support rod (32) at a position close to the bottom plate (3202).

7. The inertial navigation system vehicle test platform according to any one of claims 1 to 4, characterized in that: It also includes a lodging support assembly (36) for supporting the support rod (32) after lodging; the lodging support assembly (36) includes a support seat (3601) and a U-shaped spring sheet (3602) located on the support seat (3601); the height of the support seat (3601) is greater than a preset height so that the bottom end of the support rod (32) after lodging gradually tilts upward toward the top end.

8. The inertial navigation system vehicle-mounted test platform according to any one of claims 1 to 4, characterized in that: The vehicle-mounted battery (44) is a lithium battery, the lithium battery is connected to a battery monitor (48), and the battery monitor (48) is provided with a Bluetooth interface (481).

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