CN112751626A - Vehicle-mounted communication frequency spectrum detection device - Google Patents
Vehicle-mounted communication frequency spectrum detection device Download PDFInfo
- Publication number
- CN112751626A CN112751626A CN202011583742.3A CN202011583742A CN112751626A CN 112751626 A CN112751626 A CN 112751626A CN 202011583742 A CN202011583742 A CN 202011583742A CN 112751626 A CN112751626 A CN 112751626A
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- wall
- fixedly connected
- fixed
- frequency spectrum
- plate
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- 238000001228 spectrum Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a vehicle-mounted communication frequency spectrum detection device which comprises a fixed plate, wherein four corners of the outer wall of the top of the fixed plate are fixedly connected with a sleeve, the inner wall of the sleeve is connected with a lifting plate in a sliding mode, the outer wall of the bottom of the lifting plate is fixedly connected with a spring, the bottom end of the spring is fixedly connected with the inner wall of the bottom of the sleeve, the outer wall of the top of the lifting plate is fixedly connected with a telescopic rod, the top end of the telescopic rod is fixedly connected with a fixed box, a frequency spectrum detector is arranged inside the fixed box, the outer wall of the top of the fixed box is provided with a top plate, a heat dissipation mechanism is arranged on the top plate, the outer wall of the top of the fixed plate is fixedly connected with a fixed. The invention effectively prevents the vibration from being directly transmitted to the frequency spectrum detector in the fixed box, can play a good role in protecting the frequency spectrum detector and has better use effect.
Description
Technical Field
The invention relates to the technical field of frequency spectrum detection, in particular to a vehicle-mounted communication frequency spectrum detection device.
Background
The radio frequency portion of the electromagnetic spectrum used for wireless communications supports a number of different communications applications, and monitoring and characterizing the use of the RF spectrum is essential to regulating the spectrum and allocating and regulating the use of frequency channels in the spectrum so that the spectrum can support different communications tasks using the spectrum and can function satisfactorily.
At present, spectrum detection is also commonly used for vehicle-mounted communication, but the existing vehicle-mounted spectrum detector still has certain shortcomings, and in the using process, because the vehicle jolts in the driving process, vibration caused by jolt can be transmitted to the spectrum detector, and the spectrum detector is easily damaged, so that a vehicle-mounted communication spectrum detection device is urgently needed to be designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a vehicle-mounted communication frequency spectrum detection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a vehicle-mounted communication frequency spectrum detection device, includes the fixed plate, the equal fixedly connected with sleeve of four corners of fixed plate top outer wall, and telescopic inner wall sliding connection has the lifter plate, the bottom outer wall fixedly connected with spring of lifter plate, and the bottom of spring and telescopic bottom inner wall fixed connection, the top outer wall fixedly connected with telescopic link of lifter plate, and the fixed box of top fixedly connected with of telescopic link, the inside of fixed box is provided with the frequency spectrum and detects the appearance, the top outer wall of fixed box is provided with the roof, and is provided with heat dissipation mechanism on the roof.
As a still further scheme of the invention: the top outer wall fixedly connected with fixing base of fixed plate, and the top outer wall of fixing base opens there is the mounting groove, and the inner wall of mounting groove is provided with the rubber ball.
As a still further scheme of the invention: the heat dissipation mechanism comprises a fan, a wind scooper and a ventilation hole, the fan is fixedly arranged on the outer wall of the top plate, the wind scooper is fixedly arranged at the air outlet end of the fan, the bottom of the wind scooper is fixedly connected with the outer wall of the top of the fixing box, and the ventilation hole is formed in the inner wall of the top of the fixing box.
As a still further scheme of the invention: the ventilation holes are gradually enlarged from the middle to the periphery.
As a still further scheme of the invention: the bottom outer wall of the fixing box is provided with heat dissipation holes, the bottom outer wall of the fixing box is fixedly connected with an arc-shaped plate, and the arc-shaped plate is communicated with the heat dissipation holes.
As a still further scheme of the invention: the fan is connected with a switch through a wire, and the switch is connected with a power supply through a wire.
As a still further scheme of the invention: the equal fixedly connected with solid fixed cylinder of both sides outer wall of fixed box, and the inner wall of solid fixed cylinder rotates through the bearing and is connected with the turning block, one side outer wall of turning block rotates through the ear seat and is connected with receiving antenna, one side inner wall of solid fixed cylinder is opened flutedly, and the inner wall of recess is provided with the rubber circle, the opposite side outer wall fixedly connected with pivot of turning block, and the outer wall of pivot and the inner wall of rubber circle laminate mutually.
The invention has the beneficial effects that:
1. through the sleeve, the telescopic rod, the spring and the rubber ball, when the vehicle vibrates in the driving process, the lifting plate at the bottom of the telescopic rod can be enabled to continuously compress and stretch the spring in the sleeve to play a certain buffering role, meanwhile, when the fixed box at the top end of the telescopic rod is contacted with the rubber ball on the fixed seat, the buffering role can be further played, the vibration is effectively prevented from being directly transmitted to the frequency spectrum detector in the fixed box, the frequency spectrum detector can be well protected, and the using effect is better;
2. the fan is driven to work through the fan, the air guide cover, the heat dissipation holes, the ventilation holes and the arc-shaped plate, external air can be blown out through the air guide cover and blown onto the spectrum detector through the ventilation holes in the fixing box, a certain heat dissipation effect is achieved, the ventilation holes are gradually increased from the middle to the periphery, the air speeds in different ventilation holes are kept consistent, the spectrum detector can dissipate heat more uniformly, hot air in the fixing box can be discharged to the bottom of the arc-shaped plate through the heat dissipation holes and discharged to the two sides through the arc-shaped plate, the hot air is prevented from being sucked by the fan again, and the using effect is better;
3. through the turning block that sets up, the apparatus further comprises a rotating shaft, the rubber circle, ear seat and receiving antenna, set up and to strengthen the signal that the frequency spectrum detector received in the receiving antenna of fixed box both sides, and the turning block can be at the fixed section of thick bamboo internal rotation, make receiving antenna can be the circumference and rotate, and the pivot that is located on the turning block laminates with the rubber circle in the fixed section of thick bamboo mutually, make the receiving antenna rotate the back and keep motionless, and simultaneously, rotate through the ear seat between receiving antenna and the turning block and connect, make receiving antenna can the horizontal hunting, can adjust receiving antenna's position in a flexible way, so that reach best signal acceptance condition, the result of use is better.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a vehicle-mounted communication spectrum detection apparatus according to embodiment 1;
fig. 2 is a schematic structural diagram of a fixing plate of the vehicle-mounted communication spectrum detection apparatus according to embodiment 1;
fig. 3 is a schematic overall structure diagram of a vehicle-mounted communication spectrum detection device according to embodiment 2;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
In the figure: the device comprises a fixing plate 1, a fixing seat 2, a rubber ball 3, a sleeve 4, a spring 5, a lifting plate 6, a telescopic rod 7, a fixing box 8, a spectrum detector 9, a top plate 10, a fan 11, an air guide cover 12, a vent hole 13, a heat dissipation hole 14, an arc plate 15, a receiving antenna 16, a fixing cylinder 17, a rotating block 18, a rotating shaft 19, an ear seat 20 and a rubber ring 21.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-2, a vehicle-mounted communication frequency spectrum detection device, including fixed plate 1, the equal fixedly connected with sleeve 4 of four corners of fixed plate 1 top outer wall, and the inner wall sliding connection of sleeve 4 has lifter plate 6, the bottom outer wall fixedly connected with spring 5 of lifter plate 6, and the bottom of spring 5 and the bottom inner wall fixed connection of sleeve 4, the top outer wall fixedly connected with telescopic link 7 of lifter plate 6, and the top fixedly connected with fixing box 8 of telescopic link 7, the inside of fixing box 8 is provided with frequency spectrum detection instrument 9, the top outer wall of fixing box 8 is provided with roof 10, and be provided with heat dissipation mechanism on roof 10.
Fixed plate 1's top outer wall fixedly connected with fixing base 2, and the top outer wall of fixing base 2 opens there is the mounting groove, and the inner wall of mounting groove is provided with rubber ball 3, and when fixed box 8 contacted with rubber ball 3 on the fixing base 2, certain cushioning effect can be played.
The heat dissipation mechanism comprises a fan 11, an air guide cover 12 and a ventilation hole 13, the fan 11 is fixedly arranged on the outer wall of the top plate 10, the air guide cover 12 is fixedly arranged at the air outlet end of the fan 11, the bottom of the air guide cover 12 is fixedly connected with the outer wall of the top of the fixed box 8, and the ventilation hole 13 is arranged on the inner wall of the top of the fixed box 8.
The ventilation holes 13 are gradually increased from the middle to the periphery, so that the wind speed in the ventilation holes 13 is kept consistent.
The bottom outer wall of fixed box 8 is opened there is louvre 14, and the bottom outer wall fixedly connected with arc 15 of fixed box 8, and arc 15 and louvre 14 are linked together, and the hot-air in the fixed box 8 can be arranged to arc 15 bottom through louvre 14 to discharge to both sides through arc 15, avoid the hot-air to be inhaled by fan 11 again.
The fan 11 is connected with a switch through a wire, and the switch is connected with a power supply through a wire.
The working principle is as follows: when the automobile is used, when the automobile generates vibration in the driving process, the lifting plate 6 at the bottom of the telescopic rod 7 can be enabled to continuously compress and stretch the spring 5 in the sleeve 4 to play a certain buffering role, meanwhile, when the fixed box 8 at the top end of the telescopic rod 7 is contacted with the rubber ball 3 on the fixed seat 2, the buffering role can be further played, the vibration is effectively prevented from being directly transmitted to the spectrum detector 9 in the fixed box 8, the spectrum detector 9 can be well protected, the using effect is better, the fan 11 is driven to work, the outside air can be blown out through the air guide cover 12 and blown to the spectrum detector 9 through the vent holes 13 on the fixed box 8, a certain heat dissipation role is played, the vent holes 13 are gradually increased from the middle to the periphery, the wind speeds in different vent holes 13 are kept consistent, and the heat dissipation of the spectrum detector 9 is more uniform, the hot air in the fixed box 8 can be discharged to the bottom of the arc-shaped plate 15 through the heat dissipation holes 14 and is discharged to two sides through the arc-shaped plate 15, the hot air is prevented from being sucked by the fan 11 again, and the using effect is better.
Example 2
Referring to fig. 3-4, a vehicle-mounted communication spectrum detection device, this embodiment compares in embodiment 1, still include the equal fixedly connected with fixed cylinder 17 of both sides outer wall of fixed box 8, and the inner wall of fixed cylinder 17 rotates through the bearing and is connected with turning block 18, one side outer wall of turning block 18 rotates through ear seat 20 and is connected with receiving antenna 16, one side inner wall of fixed cylinder 17 is opened flutedly, and the inner wall of flutedly is provided with rubber ring 21, another side outer wall fixedly connected with pivot 19 of turning block 18, and the outer wall of pivot 19 and the inner wall of rubber ring 21 laminate mutually.
The working principle is as follows: during the use, set up in the signal that frequency spectrum detection appearance 9 received can be strengthened to receiving antenna 16 of fixed box 8 both sides, and turning block 18 can be at the internal rotation of fixed cylinder 17, make receiving antenna 16 can be the circumferential rotation, and be located the pivot 19 on turning block 18 and laminate mutually with the rubber circle 21 in the fixed cylinder 17, make receiving antenna 16 keep motionless after rotating, simultaneously, rotate through ear seat 20 between receiving antenna 16 and the turning block 18 and be connected, make receiving antenna 16 can the horizontal hunting, can adjust receiving antenna 16's position in a flexible way, so that reach best signal acceptance, the result of use is better.
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 considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a device is listened to on-vehicle communication frequency spectrum, includes fixed plate (1), its characterized in that, the equal fixedly connected with sleeve (4) of four corners of fixed plate (1) top outer wall, and the inner wall sliding connection of sleeve (4) has lifter plate (6), the bottom outer wall fixedly connected with spring (5) of lifter plate (6), and the bottom inner wall fixed connection of the bottom of spring (5) and sleeve (4), the top outer wall fixedly connected with telescopic link (7) of lifter plate (6), and the top fixedly connected with of telescopic link (7) fixes box (8), the inside of fixing box (8) is provided with frequency spectrum and surveys appearance (9), the top outer wall of fixing box (8) is provided with roof (10), and is provided with heat dissipation mechanism on roof (10).
2. The vehicle-mounted communication frequency spectrum detection device according to claim 1, wherein a fixed seat (2) is fixedly connected to an outer wall of the top of the fixed plate (1), an installation groove is formed in the outer wall of the top of the fixed seat (2), and a rubber ball (3) is arranged on the inner wall of the installation groove.
3. The vehicle-mounted communication frequency spectrum detection device according to claim 1, wherein the heat dissipation mechanism comprises a fan (11), an air guide cover (12) and a vent hole (13), the fan (11) is fixedly arranged on the outer wall of the top plate (10), the air guide cover (12) is fixedly arranged at the air outlet end of the fan (11), the bottom of the air guide cover (12) is fixedly connected with the outer wall of the top of the fixed box (8), and the vent hole (13) is arranged on the inner wall of the top of the fixed box (8).
4. The on-vehicle communication spectrum detection device according to claim 3, wherein the ventilation holes (13) are gradually increased from the middle to the periphery.
5. The device for detecting spectrum of vehicular communication according to claim 4, wherein the bottom outer wall of the fixing box (8) is provided with heat dissipating holes (14), and the bottom outer wall of the fixing box (8) is fixedly connected with an arc-shaped plate (15), and the arc-shaped plate (15) is communicated with the heat dissipating holes (14).
6. The vehicle-mounted communication spectrum detection device according to claim 3, wherein the fan (11) is connected with a switch through a wire, and the switch is connected with a power supply through a wire.
7. The vehicle-mounted communication frequency spectrum detection device according to claim 1, wherein the outer walls of two sides of the fixed box (8) are fixedly connected with a fixed cylinder (17), the inner wall of the fixed cylinder (17) is rotatably connected with a rotating block (18) through a bearing, the outer wall of one side of the rotating block (18) is rotatably connected with a receiving antenna (16) through an ear seat (20), the inner wall of one side of the fixed cylinder (17) is provided with a groove, the inner wall of the groove is provided with a rubber ring (21), the outer wall of the other side of the rotating block (18) is fixedly connected with a rotating shaft (19), and the outer wall of the rotating shaft (19) is attached to the inner wall of the rubber ring (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583742.3A CN112751626A (en) | 2020-12-28 | 2020-12-28 | Vehicle-mounted communication frequency spectrum detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583742.3A CN112751626A (en) | 2020-12-28 | 2020-12-28 | Vehicle-mounted communication frequency spectrum detection device |
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| Publication Number | Publication Date |
|---|---|
| CN112751626A true CN112751626A (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011583742.3A Pending CN112751626A (en) | 2020-12-28 | 2020-12-28 | Vehicle-mounted communication frequency spectrum detection device |
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| CN (1) | CN112751626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933544A (en) * | 2021-09-28 | 2022-01-14 | 成都老鹰信息技术有限公司 | Radio frequency spectrum sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013120905A1 (en) * | 2012-02-15 | 2013-08-22 | Leopold Kostal Gmbh & Co. Kg | Camera arrangement for a motor vehicle |
| CN108519256A (en) * | 2018-04-19 | 2018-09-11 | 清华大学 | Gas, solid phase SVOCs synchronous sampling systems suitable for carried on vehicle test |
| CN209626275U (en) * | 2019-03-15 | 2019-11-12 | 徐大钧 | A kind of battery changeable type radio monitoring equipment |
| CN209994379U (en) * | 2019-06-26 | 2020-01-24 | 东莞市慧眼数字技术有限公司 | Radio communication testing device |
| CN210297718U (en) * | 2019-10-28 | 2020-04-10 | 浙江商业职业技术学院 | Wireless communication sensitivity testing arrangement |
| CN210572772U (en) * | 2019-07-10 | 2020-05-19 | 天津法尔瑞科技有限公司 | Sodium iodide crystal detector with good damping performance |
| CN210745167U (en) * | 2019-11-29 | 2020-06-12 | 河南宏泰控飞信息技术有限公司 | Frequency spectrum detection device |
| CN211236986U (en) * | 2020-03-17 | 2020-08-11 | 江苏速家宅配科技有限公司 | Vehicle-mounted wireless sensor real-time monitoring device |
-
2020
- 2020-12-28 CN CN202011583742.3A patent/CN112751626A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013120905A1 (en) * | 2012-02-15 | 2013-08-22 | Leopold Kostal Gmbh & Co. Kg | Camera arrangement for a motor vehicle |
| CN108519256A (en) * | 2018-04-19 | 2018-09-11 | 清华大学 | Gas, solid phase SVOCs synchronous sampling systems suitable for carried on vehicle test |
| CN209626275U (en) * | 2019-03-15 | 2019-11-12 | 徐大钧 | A kind of battery changeable type radio monitoring equipment |
| CN209994379U (en) * | 2019-06-26 | 2020-01-24 | 东莞市慧眼数字技术有限公司 | Radio communication testing device |
| CN210572772U (en) * | 2019-07-10 | 2020-05-19 | 天津法尔瑞科技有限公司 | Sodium iodide crystal detector with good damping performance |
| CN210297718U (en) * | 2019-10-28 | 2020-04-10 | 浙江商业职业技术学院 | Wireless communication sensitivity testing arrangement |
| CN210745167U (en) * | 2019-11-29 | 2020-06-12 | 河南宏泰控飞信息技术有限公司 | Frequency spectrum detection device |
| CN211236986U (en) * | 2020-03-17 | 2020-08-11 | 江苏速家宅配科技有限公司 | Vehicle-mounted wireless sensor real-time monitoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933544A (en) * | 2021-09-28 | 2022-01-14 | 成都老鹰信息技术有限公司 | Radio frequency spectrum sensor |
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Application publication date: 20210504 |
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