CN113050123A - Make things convenient for car networking terminal equipment of big dipper location of taking of dismouting - Google Patents
Make things convenient for car networking terminal equipment of big dipper location of taking of dismouting Download PDFInfo
- Publication number
- CN113050123A CN113050123A CN202110260104.6A CN202110260104A CN113050123A CN 113050123 A CN113050123 A CN 113050123A CN 202110260104 A CN202110260104 A CN 202110260104A CN 113050123 A CN113050123 A CN 113050123A
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- Prior art keywords
- networking terminal
- connecting seat
- fixed
- car networking
- big dipper
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- 230000006855 networking Effects 0.000 title claims abstract description 42
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 title claims description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a conveniently-disassembled and conveniently-disassembled vehicle networking terminal device with Beidou positioning, which comprises a Beidou vehicle networking terminal body and a base arranged on a vehicle body, wherein a connecting seat is arranged below the Beidou vehicle networking terminal body, supporting frames are fixed on two sides of the upper end of the connecting seat, bearings are fixedly embedded on the side walls of the upper parts of the two supporting frames, connecting shafts are fixed on two sides of the Beidou vehicle networking terminal body, the two connecting shafts are respectively inserted into the inner sides of the two bearings, limiting mechanisms for fixing the connecting shafts are arranged on the side walls of the supporting frames, an installation groove is arranged in the middle of the lower end face of the connecting seat, guide grooves are arranged on two sides of the lower end face of the connecting seat, and fixing mechanisms are arranged in the two guide grooves. The invention can realize quick disassembly and assembly, is convenient to use, saves time and labor, is stable to use, can flexibly adjust the use angle of the Beidou Internet of vehicles terminal body according to the requirement, and has good use effect.
Description
Technical Field
The invention relates to the technical field of car networking equipment, in particular to car networking terminal equipment with Beidou positioning, which is convenient to disassemble and assemble.
Background
The existing Beidou Internet of vehicles refers to a large-scale industrial chain formed by taking vehicle detection reservation, Beidou vehicle-mounted prearranged front ends, free services (real-time monitoring, vehicle maintenance, real-time scheduling and the like) as a core, profitable product modules such as insurance, financing, shopping malls and the like as middle ends and related industries of vehicle finance as rear ends by depending on a mobile network platform. The Beidou Internet of vehicles terminal equipment is terminal equipment of a Beidou Internet of vehicles platform installed on a vehicle body.
But present beidou car networking terminal equipment all is usually through bolted connection on the automobile body for beidou car networking terminal equipment's installation, dismantlement operation are comparatively loaded down with trivial details, and then make beidou car networking terminal equipment's routine maintenance overhaul or move the car installation comparatively inconvenient, and it is convenient inadequately to use loaded down with trivial details, consequently, need design a car networking terminal equipment of taking the big dipper location of making things convenient for the dismouting now.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the conveniently-disassembled and conveniently-assembled car networking terminal equipment with the Beidou positioning function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a conveniently detachable car networking terminal device with Beidou positioning function comprises a Beidou car networking terminal body and a base arranged on a car body, a connecting seat is arranged below the Beidou Internet of vehicles terminal body, supporting frames are fixed on both sides of the upper end of the connecting seat, bearings are fixedly embedded on the side walls of the upper parts of the two supporting frames, connecting shafts are fixed on both sides of the Beidou Internet of vehicles terminal body, the two connecting shafts are respectively inserted inside the two bearings, a limiting mechanism for fixing the connecting shaft is arranged on the side wall of the supporting frame, an installation groove is arranged in the middle of the lower end face of the connecting seat, two sides of the lower end surface of the connecting seat are respectively provided with a guide groove, a fixing mechanism is respectively arranged in the two guide grooves, the upper end of the base is fixedly provided with a clamping sleeve corresponding to the fixing mechanism, and an operating mechanism connected with the two fixing mechanisms is arranged in the mounting groove.
Preferably, stop gear includes the solid fixed cylinder of fixed connection on the support frame lateral wall, gu the fixed cylinder cover is established in the connecting axle outside, gu the blind end of fixed cylinder runs through the second screw rod that is equipped with rather than threaded connection, the one end that the second screw rod is located solid fixed cylinder inside rotates and is connected with the rectangular plate, it has spacing tooth to arrange along circumference equidistant on the lateral wall that the rectangular plate is close to the connecting axle, the tip of connecting axle is arranged along circumference equidistant has the spacing tooth's socket with spacing tooth adaptation.
Preferably, fixed establishment is including the guide bar of horizontal in the guide way, the equal fixed connection in both ends of guide bar is on the inner wall of guide way, the movable rod has been cup jointed in the slip on the guide bar, the lower extreme fixedly connected with of movable rod and the fixture block of cutting ferrule adaptation.
Preferably, operating device is including setting up the disc in the mounting groove, the connecting seat upper end be equipped with run through to the mounting groove in and with connecting seat threaded connection's first screw rod, the lower extreme of first screw rod is fixed in disc upper end centre of a circle department, disc lower plate symmetry is fixed with two spliced poles, two all rotate on the spliced pole and cup jointed the connecting rod, two the connecting rod is kept away from the one end of spliced pole and is extended to respectively and be fixed with and change the cover, two it rotates respectively to cup joint on two movable rods to change the cover.
Preferably, the fixture block is of an L-shaped structure, and the fixture block and the movable rod are integrally formed.
Preferably, a gasket is sleeved on the first screw rod and is positioned above the connecting seat.
Preferably, the lower extreme of connecting seat is fixed with two elastic cushion, two elastic cushion sets up respectively in connecting seat lower extreme both sides, the lower terminal surface of elastic cushion is equipped with anti-skidding line.
Preferably, the section of the inner wall of the fixed cylinder is a rectangular structure corresponding to the rectangular plate.
The invention has the beneficial effects that:
1. through setting up stop gear, the connecting axle rotates to be connected in the bearing inboard, make the connecting axle rotate, adjust the angle of big dipper car networking terminal body, through rotating the second screw rod, can make the rectangular plate remove in a solid fixed cylinder, make spacing tooth block in spacing tooth's socket, can fix the connecting axle, fix the inclination of big dipper car networking terminal body simultaneously, and then be convenient for carry out nimble regulation to the angle of big dipper car networking terminal body, it is more convenient to use.
2. Through setting up fixed establishment, operating device, place the connecting seat on the base, rotate first screw rod, drive disc rotates, the movable rod that can drive both sides through two connecting rods removes along the guide bar, it is close to the removal to drive two fixture blocks, and then inboard at the cutting ferrule through the fixture block, can realize connecting fixedly, with big dipper car networking terminal body installation, when needing to dismantle, only need first screw rod of reversal, can make the fixture block shift out the cutting ferrule, dismantle big dipper car networking terminal body, and then realize dismantling fast, the installation, it is convenient to use, time saving and labor saving.
3. Support tightly to first screw rod through setting up the packing ring, and then effectively prevent the not hard up rotation of first screw rod for the fixture block is connected stably with the cutting ferrule, and then is more stable when making big dipper car networking terminal body installation use.
4. Support between connecting seat and the base through setting up the elasticity cushion, and the good rocking that effectively reduces the connecting seat of antiskid nature for big dipper car networking terminal body installation is stable.
The invention can realize quick disassembly and assembly, is convenient to use, saves time and labor, is stable to use, can flexibly adjust the use angle of the Beidou Internet of vehicles terminal body according to the requirement, and has good use effect.
Drawings
FIG. 1 is a schematic structural diagram of a conveniently-disassembled and assembled Internet of vehicles terminal equipment with Beidou positioning function;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic structural view of a disc, a connecting rod and a connecting column of the conveniently-disassembled and conveniently-disassembled Internet of vehicles terminal equipment with Beidou positioning function;
fig. 4 is a schematic structural diagram of a connecting shaft end part and a limiting tooth groove of the conveniently-disassembled and conveniently-disassembled car networking terminal equipment with the Beidou positioning function.
In the figure: 1 big dipper car networking terminal body, 2 support frames, 3 connecting seats, 4 bases, 5 elastic cushion, 6 guide ways, 7 guide bars, 8 movable rods, 9 commentaries on classics cover, 10 fixture blocks, 11 cutting ferrule, 12 connecting rods, 13 spliced poles, 14 mounting grooves, 15 discs, 16 first screw rods, 17 packing rings, 18 connecting axles, 19 bearings, 20 spacing tooth's socket, 21 spacing tooth, 22 rectangular plate, 23 solid fixed cylinder, 24 second screw rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a make things convenient for car networking terminal equipment of big dipper location of dismouting, including big dipper car networking terminal body 1 and base 4 of installing on the automobile body, big dipper car networking terminal body 1's below is equipped with connecting seat 3, the upper end both sides of connecting seat 3 all are fixed with support frame 2, it is equipped with bearing 19 all to fix on 2 upper portion lateral walls of two support frames, big dipper car networking terminal body 1's both sides all are fixed with connecting axle 18, two connecting axles 18 cartridge are inboard at two bearing 19 respectively, be equipped with on the lateral wall of support frame 2 and be used for the stop gear to connecting axle 18 fixed, the lower terminal surface middle part of connecting seat 3 is equipped with mounting groove 14, the lower terminal surface both sides of connecting seat 3 all are equipped with guide way 6, all be equipped with fixed establishment in two guide way 6, the upper end of base 4 is fixed with cutting ferrule 11 that corresponds with fixed establishment.
In the invention, the limiting mechanism comprises a fixed cylinder 23 fixedly connected on the side wall of the support frame 2, the fixed cylinder 23 is sleeved outside the connecting shaft 18, a second screw 24 in threaded connection with the fixed cylinder 23 is arranged at the closed end of the fixed cylinder 23 in a penetrating manner, a rectangular plate 22 is rotatably connected to one end, located inside the fixed cylinder 23, of the second screw 24, the section of the inner wall of the fixed cylinder 23 is of a rectangular structure corresponding to the rectangular plate 22, limiting teeth 21 are circumferentially arranged on one side wall, close to the connecting shaft 18, of the rectangular plate 22 at equal intervals, and limiting tooth grooves 20 matched with the limiting teeth 21 are circumferentially arranged at equal intervals at the end part of the connecting shaft 18.
Specifically, fixed establishment includes horizontal guide bar 7 in guide way 6, and the equal fixed connection in both ends of guide bar 7 is on the inner wall of guide way 6, and sliding sleeve has received movable rod 8 on guide bar 7, and the lower extreme fixedly connected with of movable rod 8 and the fixture block 10 of cutting ferrule 11 adaptation, fixture block 10 are L type structure, and fixture block 10 and movable rod 8 integrated into one piece.
Specifically, operating device is including setting up the disc 15 in mounting groove 14, 3 upper ends of connecting seat are equipped with run through to mounting groove 14 in and with 3 threaded connection's of connecting seat first screw rod 16, the lower extreme of first screw rod 16 is fixed in disc 15 upper end centre of a circle department, disc 15 lower wall symmetry is fixed with two spliced poles 13, all rotate on two spliced poles 13 and cup jointed connecting rod 12, the one end that spliced pole 13 was kept away from to two connecting rods 12 extends to respectively and is fixed with and changes cover 9, two change cover 9 and rotate respectively and cup joint on two movable rods 8.
Further, the cover is equipped with packing ring 17 on the first screw rod 16, and packing ring 17 is located connecting seat 3 top, supports tightly first screw rod 16 through setting up packing ring 17, and then effectively prevents the not hard up rotation of first screw rod 16 for fixture block 10 is connected stably with cutting ferrule 11, and then is more stable when making the installation of big dipper car networking terminal body 1 use.
Further, the lower extreme of connecting seat 3 is fixed with two elastic cushion 5, and two elastic cushion 5 set up respectively in 3 lower extreme both sides of connecting seat, and elastic cushion 5's lower terminal surface is equipped with anti-skidding line, supports between connecting seat 3 and the base 4 through setting up elastic cushion 5, and the antiskid nature effectively reduces rocking of connecting seat 3 for 1 installation of big dipper car networking terminal body is stable.
When the invention is used, the connecting seat 3 is placed on the base 4, the first screw 16 is rotated, the driving disc 15 is rotated, the movable rods 8 at two sides can be driven by the two connecting rods 12 to move along the guide rod 7, the two clamping blocks 10 are driven to move close to each other, and then the clamping blocks 10 are clamped at the inner sides of the clamping sleeves 11, so that the connection and the fixation can be realized, the Beidou Internet of vehicles terminal body 1 is installed, when the Beidou Internet of vehicles terminal body 1 needs to be disassembled, the clamping blocks 10 can be moved out of the clamping sleeves 11 by only reversing the first screw 16, the Beidou Internet of vehicles terminal body 1 is disassembled, when the Beidou Internet of vehicles terminal body 1 is used, the connecting shaft 18 is rotatably connected at the inner sides of the bearings 19, so that the connecting shaft 18 can rotate, the angle of the Beidou Internet of vehicles terminal body 1 is adjusted, the rectangular plate 22 can move in the fixed cylinder 23 by rotating, can fix connecting axle 18, fix the inclination of big dipper car networking terminal body 1 simultaneously, and then be convenient for carry out nimble regulation to the angle of big dipper car networking terminal body 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides a make things convenient for car networking terminal equipment of big dipper location of dismouting, includes big dipper car networking terminal body (1) and installs base (4) on the automobile body, its characterized in that, the below of big dipper car networking terminal body (1) is equipped with connecting seat (3), the upper end both sides of connecting seat (3) all are fixed with support frame (2), and two all fixed the inlaying on the lateral wall of support frame (2) upper portion is equipped with bearing (19), the both sides of big dipper car networking terminal body (1) all are fixed with connecting axle (18), and two connecting axle (18) are cartridge respectively in two bearing (19) inboards, be equipped with the stop gear who is used for fixing connecting axle (18) on the lateral wall of support frame (2), the lower terminal surface middle part of connecting seat (3) is equipped with mounting groove (14), the lower terminal surface both sides of connecting seat (3) all are equipped with guide way (, a fixing mechanism is arranged in each of the two guide grooves (6), a clamping sleeve (11) corresponding to the fixing mechanism is fixed at the upper end of the base (4), an operating mechanism connected with the two fixing mechanisms is arranged in the mounting groove (14), the limiting mechanism comprises a fixing cylinder (23) fixedly connected on the side wall of the support frame (2), the fixed cylinder (23) is sleeved outside the connecting shaft (18), a second screw (24) in threaded connection with the closed end of the fixed cylinder (23) penetrates through the closed end, one end of the second screw rod (24) positioned in the fixed cylinder (23) is rotationally connected with a rectangular plate (22), limiting teeth (21) are arranged on one side wall of the rectangular plate (22) close to the connecting shaft (18) at equal intervals along the circumferential direction, and limiting tooth grooves (20) matched with the limiting teeth (21) are arranged at the end part of the connecting shaft (18) at equal intervals along the circumferential direction.
2. The vehicle networking terminal equipment with the Beidou positioning function convenient to disassemble and assemble according to claim 1, wherein the fixing mechanism comprises a guide rod (7) transversely arranged in a guide groove (6), two ends of the guide rod (7) are fixedly connected to the inner wall of the guide groove (6), a movable rod (8) is sleeved on the guide rod (7) in a sliding mode, and a clamping block (10) matched with a clamping sleeve (11) is fixedly connected to the lower end of the movable rod (8).
3. The vehicle networking terminal device with the Beidou positioning function and convenient to disassemble and assemble according to claim 2, wherein the operating mechanism comprises a disc (15) arranged in a mounting groove (14), a first screw (16) penetrating into the mounting groove (14) and in threaded connection with the connecting seat (3) is arranged at the upper end of the connecting seat (3), the lower end of the first screw (16) is fixed at the center of a circle at the upper end of the disc (15), two connecting columns (13) are symmetrically fixed on the lower disc surface of the disc (15), two connecting rods (12) are rotatably sleeved on the two connecting columns (13), two ends, far away from the connecting columns (13), of the connecting rods (12) extend to and are fixed with rotating sleeves (9), and the two rotating sleeves (9) are rotatably sleeved on the two movable rods (8) respectively.
4. The vehicle networking terminal device with the Beidou positioning function convenient to disassemble and assemble as claimed in claim 2, wherein the clamping block (10) is of an L-shaped structure, and the clamping block (10) and the movable rod (8) are integrally formed.
5. The vehicle networking terminal device with the Beidou positioning function convenient to disassemble and assemble according to claim 3, wherein a gasket (17) is sleeved on the first screw (16), and the gasket (17) is located above the connecting seat (3).
6. The vehicle networking terminal device with the Beidou positioning function convenient to disassemble and assemble according to claim 1, wherein two elastic cushions (5) are fixed at the lower end of the connecting seat (3), the two elastic cushions (5) are respectively arranged on two sides of the lower end of the connecting seat (3), and anti-skid grains are arranged on the lower end face of each elastic cushion (5).
7. The vehicle networking terminal device with the Beidou positioning function convenient to disassemble and assemble according to claim 1, wherein the section of the inner wall of the fixed cylinder (23) is of a rectangular structure corresponding to the rectangular plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260104.6A CN113050123A (en) | 2021-03-10 | 2021-03-10 | Make things convenient for car networking terminal equipment of big dipper location of taking of dismouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260104.6A CN113050123A (en) | 2021-03-10 | 2021-03-10 | Make things convenient for car networking terminal equipment of big dipper location of taking of dismouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113050123A true CN113050123A (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110260104.6A Pending CN113050123A (en) | 2021-03-10 | 2021-03-10 | Make things convenient for car networking terminal equipment of big dipper location of taking of dismouting |
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| Country | Link |
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| CN (1) | CN113050123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370909A (en) * | 2021-06-30 | 2021-09-10 | 安诺(深圳)创新技术有限公司 | Internet of vehicles intelligent terminal based on big dipper positioning system |
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| CN210743148U (en) * | 2019-10-11 | 2020-06-12 | 中测科技(广州)有限公司 | Laser positioning safety monitoring device for fire early warning in advance |
| CN212005226U (en) * | 2020-06-01 | 2020-11-24 | 深圳市鑫田威尔科技有限公司 | LED lamp tube fixing piece |
| CN211984631U (en) * | 2020-04-13 | 2020-11-24 | 广西生态工程职业技术学院 | Clamping device for art drawing board |
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2021
- 2021-03-10 CN CN202110260104.6A patent/CN113050123A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202017102958U1 (en) * | 2016-08-15 | 2017-08-08 | Wen Chen | Multifunctional vehicle mobile phone holder |
| CN206788708U (en) * | 2017-06-16 | 2017-12-22 | 宁夏卓越时代科技有限公司 | A kind of software development multifunction display |
| CN108169777A (en) * | 2017-11-03 | 2018-06-15 | 北京讯业互联科技股份有限公司 | A kind of vehicle navigation apparatus based on triones navigation system |
| CN209132496U (en) * | 2018-11-03 | 2019-07-19 | 常州迈纳光电科技有限公司 | A kind of plane reflection mirror mounting assembly |
| CN209614683U (en) * | 2019-01-14 | 2019-11-12 | 郭海鹏 | A kind of fixation device of machinery welding machine frame angle adjustable |
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| CN210743148U (en) * | 2019-10-11 | 2020-06-12 | 中测科技(广州)有限公司 | Laser positioning safety monitoring device for fire early warning in advance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113370909A (en) * | 2021-06-30 | 2021-09-10 | 安诺(深圳)创新技术有限公司 | Internet of vehicles intelligent terminal based on big dipper positioning system |
| CN113370909B (en) * | 2021-06-30 | 2022-03-25 | 安诺(深圳)创新技术有限公司 | Internet of vehicles intelligent terminal based on big dipper positioning system |
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