CN113311435A - Doppler speed measuring device based on radio signals - Google Patents

Doppler speed measuring device based on radio signals Download PDF

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Publication number
CN113311435A
CN113311435A CN202110869791.1A CN202110869791A CN113311435A CN 113311435 A CN113311435 A CN 113311435A CN 202110869791 A CN202110869791 A CN 202110869791A CN 113311435 A CN113311435 A CN 113311435A
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block
shaft
rotating
gear
movable
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CN202110869791.1A
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CN113311435B (en
Inventor
余文凤
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Shenzhen Hdv Phoelectron Technology Ltd
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Shenzhen Hdv Phoelectron Technology Ltd
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Priority to CN202110869791.1A priority Critical patent/CN113311435B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/91Radar or analogous systems specially adapted for specific applications for traffic control
    • G01S13/92Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/052Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The invention discloses a Doppler speed measuring device based on radio signals, which comprises a tripod, wherein a speedometer is movably arranged on the tripod, an adjusting box body is arranged on the tripod, a rotating piece is arranged in the adjusting box body, the Doppler speed measuring device based on radio signals is different from the prior art, before the speedometer is installed, the road direction is measured by the measuring component, and the included angle between the transmitting end of the velocimeter and the direction vertical to the road surface can be measured by the rotating rod and the fixed block, the transmitting end of the velocimeter is adjusted to be vertical to the road surface and the mounting seat is adjusted by the rotating piece by taking the transmitting end of the velocimeter as a reference, so that the arrangement position of the velocimeter is more accurate, and in the process of installing the measuring component in the mounting seat, the mounting base is adjusted through the cooperation of measuring component and driving medium and makes it be parallel with the road surface trend, and then improves the precision that tests the speed.

Description

Doppler speed measuring device based on radio signals
Technical Field
The invention relates to the technical field of radio speed measurement, in particular to a Doppler speed measurement device based on radio signals.
Background
The radar velocimeter is used for detecting the running speed of the motor vehicle, is the most common detection method with mature technology in the world at present, can simply, quickly, flexibly and accurately measure the running speed of the motor vehicle to be detected, the basic principle of detecting the running speed of the motor vehicle by using the radar velocimeter is the Doppler principle, when a radar wave beam with certain transmitting frequency is emitted to a moving target, the reflecting frequency carries target speed information, the reflecting frequency is different from the transmitting frequency, and the difference between the reflecting frequency and the transmitting frequency is called Doppler frequency.
In the use process of the portable speed measuring device, the incorrect arrangement of the speed measuring instrument causes the error of the speed measuring result, which is a common problem, firstly, the actual speed of the speed measuring target is related to the included angle between the radio wave beam emitted by the equipment and the moving direction of the target, therefore, when the arrangement included angle is not consistent with the specification requirement, the actual included angle is not consistent with the built-in initial included angle of the speed measuring instrument, which causes the data calculated by a computer to be distorted, and secondly, the included angle between the speed measuring instrument and the road trend is required to be consistent strictly according to the specification, the speed measuring instrument is parallel to the road trend direction, the error of the speed measuring instrument is 100km/h +/-4 km/h, and the error of the speed measuring value and the actual running speed is easily overlarge due to the error increased by the incorrect arrangement. Therefore, a Doppler speed measuring device based on radio signals is provided.
Disclosure of Invention
The present invention provides a doppler velocity measurement device based on radio signals, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a Doppler speed measuring device based on radio signals comprises a tripod, wherein a speedometer is movably arranged on the tripod, an adjusting box body is arranged on the tripod, a rotating piece is arranged in the adjusting box body, and the transmitting end of the speedometer is adjusted to be opposite to a road surface when the speed measuring device is installed;
the adjusting box is characterized in that a mounting seat is arranged on the adjusting box body, the mounting seat is movably provided with the placing plate, the velocimeter is fixedly arranged on the placing plate, a measuring assembly is movably arranged on the mounting seat, a transmission part is arranged in the mounting seat, and a positioning part is arranged on the mounting seat.
Preferably, the rotating part is arranged on a damping shaft in the adjusting box body in a rotating mode, a transmission bevel gear is arranged on the outer side of the damping shaft and follows the damping shaft to rotate synchronously, a rotating disc is fixedly arranged at the top end of the damping shaft, the mounting seat is arranged on the rotating disc and follows the rotating disc to rotate synchronously, a driving shaft is arranged on one side of the adjusting box body in a rotating mode, a driving bevel gear meshed with the transmission bevel gear is arranged on the outer side of the driving shaft, a knob is arranged at the end portion of the driving shaft, and a laser transmitter is arranged at the bottom of the adjusting box body.
Preferably, the measuring component comprises a moving part and a fixed part, the moving part comprises a moving block movably arranged in the mounting seat, a rotating shaft is arranged in the moving block in a rotating way, a winding drum is arranged on the outer side of the rotating shaft, a pull rope is arranged on the winding drum, the other end of the pull rope is connected with the fixed part, a movable plate is arranged at the end part of the rotating shaft, the movable plate is rotated to drive the rotating shaft to synchronously rotate, a movable rod is movably arranged on the movable plate, a clamping block is arranged at one end of the movable rod, a clamping groove matched with the clamping block for use is arranged on the side wall of the movable block, an extension spring is arranged on the outer side of the movable rod, a pull button is arranged at the end of the movable rod, two ends of the extension spring are fixedly connected with the pull button and the movable block respectively, a magnetic plate is arranged on the movable block, and a handle is arranged on the movable block.
Preferably, the fixing part comprises a fixing block movably arranged in the mounting seat, a magnetic plate is arranged on the fixing block, when the magnetic plates are mutually attracted, the movable part is connected with the fixed part, a fixed shaft is rotationally arranged in the fixed block, a rotating plate and a driving gear are fixedly arranged on the outer side of the fixed shaft, the end part of the pull rope is fixedly connected with the rotating plate, the upper side and the lower side of the driving gear are both provided with racks meshed with the driving gear, the fixed block is internally provided with a connecting rod, a slide rail is arranged at the end part of the connecting rod, a slide block is movably arranged in the slide rail and is fixedly connected with the rack, be provided with reset spring in the slide rail, the fixed block bottom is provided with the dwang, the cooperation laser emitter measures with the curbstone the angle that the mount pad needs to be adjusted, be provided with the fastener on the fixed block.
Preferably, the fastener is including setting up the lead screw of fixed block one side, the lead screw tip is provided with turning handle, and is rotatory turning handle drives the lead screw aversion makes its bottom butt drive gear.
Preferably, the driving medium sets up including rotating the transmission shaft in the mount pad, the transmission shaft outside is provided with drive gear and synchronous gear, drive gear with the rack cooperation is used, the transmission shaft is followed drive gear with synchronous gear synchronous revolution, the mount pad top is provided with the casing, it is provided with the regulating spindle to rotate on the casing, the fixed regulating gear that is provided with in the regulating spindle outside, the synchronous gear outside is provided with the chain drive the regulating gear rotatory during synchronous gear is rotatory, the fixed turning block that is provided with in regulating spindle both ends, the turning block with place board fixed connection, be provided with balance spring on the mount pad.
Preferably, a movable groove is formed in the mounting seat, the positioning element is movably arranged on the positioning block in the movable groove, a positioning groove matched with the positioning block is formed in the movable block, a positioning rod is arranged on the positioning block, a shifting plate is arranged at the end of the positioning rod and used for pulling the positioning rod to pull the positioning block to move, a positioning spring is arranged in the movable groove, and the shifting plate is extruded by the elastic force of the positioning spring to drive the positioning block to be inserted into the positioning groove.
Preferably, the knob and the outer side of the rotating handle are provided with anti-skid grains.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the road trend can be measured through the measuring component before the velocimeter is installed, an included angle between the emission end of the velocimeter and the direction perpendicular to the road surface trend can be measured through the rotating rod and the fixed block, the emission end of the velocimeter is adjusted to be perpendicular to the direction of the road surface and is taken as a reference, the installation seat is adjusted through the rotating member, so that the arrangement position of the velocimeter is more accurate, and in the process of installing the measuring component in the installation seat, the installation seat is adjusted through the matching of the measuring component and the transmission member to be parallel to the road surface trend, so that the velocimetry precision is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of a doppler velocity measuring device based on radio signals according to the present invention;
FIG. 2 is a schematic view of the second orientation configuration of FIG. 1;
FIG. 3 is a partial cross-sectional structural view of FIG. 2;
fig. 4 is a schematic partial sectional view of a doppler velocity measuring device based on radio signals according to the present invention;
FIG. 5 is a schematic view of a positioning element of the Doppler velocity measurement device based on radio signals according to the present invention;
FIG. 6 is a schematic cross-sectional view of a moving block of the Doppler velocity measurement device based on radio signals according to the present invention;
fig. 7 is a schematic cross-sectional structure view of a fixing block of the doppler velocity measurement device based on radio signals according to the present invention;
fig. 8 is a schematic cross-sectional structure view of a mounting base of the doppler velocity measurement device based on radio signals according to the present invention.
In the figure: 1-a tripod; 2-a measuring assembly; 3-a transmission part; 31-a drive shaft; 32-a drive gear; 33-a synchronizing gear; 34-a housing; 35-an adjustment shaft; 36-an adjustment gear; 37-a chain; 38-a turning block; 39-a balance spring; 4-a positioning element; 41-movable groove; 42-positioning blocks; 43-positioning grooves; 44-a positioning rod; 45-shifting plate; 46-a positioning spring; 5-a moving part; 51-a moving block; 52-rotating shaft; 53-a spool; 54-a pull cord; 55-a movable plate; 56-a movable rod; 57-a fixture block; 58-card slot; 59-extension spring; 510-a pull button; 511-magnetic plate; 512-a handle; 6-a fixed part; 61-a fixed block; 62-a fixed shaft; 63-a rotating plate; 64-a drive gear; 65-a rack; 66-connecting rods; 67-a slide rail; 68-a slide block; 69-a return spring; 610-rotating rods; 7-a fastener; 71-a screw rod; 72-rotating the handle; 8-a rotating member; 81-damping shaft; 82-drive bevel gears; 83-rotating disk; 84-a drive shaft; 85-drive bevel gear; 86-a knob; 87-a laser emitter; 9-a velocimeter; 10-adjusting the box body; 11-a mounting seat; 12-Place the board.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 8, the present invention provides a technical solution: a Doppler speed measuring device based on radio signals comprises a tripod 1, wherein a speed measuring instrument 9 is movably arranged on the tripod 1, an adjusting box body 10 is arranged on the tripod 1, a rotating piece 8 is arranged in the adjusting box body 10, and the transmitting end of the speed measuring instrument 9 is adjusted to be opposite to a road surface when the Doppler speed measuring device is installed;
the adjusting box body 10 is provided with a mounting seat 11, the mounting seat 11 is movably provided with a placing plate 12, the velocimeter 9 is fixedly arranged on the placing plate 12, the mounting seat 11 is movably provided with a measuring component 2, and the pavement condition is measured when the measuring component is mounted;
a transmission piece 3 is arranged in the mounting seat 11, and when the measuring component 2 is mounted in the mounting seat 11, the velocimeter 9 is automatically adjusted to be parallel to the road surface;
the mounting seat 11 is provided with a positioning member 4 for positioning the measuring assembly 2 when it is mounted in the mounting seat 11.
The rotating part 8 comprises a damping shaft 81 which is rotatably arranged in the adjusting box body 10, a transmission bevel gear 82 is arranged on the outer side of the damping shaft 81, the transmission bevel gear 82 rotates along with the damping shaft 81, a rotating disc 83 is fixedly arranged at the top end of the damping shaft 81, the mounting seat 11 is arranged on the rotating disc 83 and rotates along with the rotating disc, a driving shaft 84 is rotatably arranged on one side of the adjusting box body 10, a driving bevel gear 85 meshed with the transmission bevel gear 82 is arranged on the outer side of the driving shaft 84, a knob 86 is arranged at the end part of the driving shaft 84, and a laser emitter 87 is arranged at the bottom of the adjusting box body 10.
The measuring assembly 2 comprises a moving part 5 and a fixing part 6, the moving part 5 comprises a moving block 51 movably arranged in the mounting seat 11, a rotating shaft 52 is rotatably arranged in the moving block 51, a winding drum 53 is arranged on the outer side of the rotating shaft 52, a pulling rope 54 is arranged on the winding drum 53, the other end of the pulling rope 54 is connected with the fixing part 6, a moving plate 55 is arranged at the end part of the rotating shaft 52, the rotating plate 55 drives the rotating shaft 52 to synchronously rotate, a movable rod 56 is movably arranged on the moving plate 55, a clamping block 57 is arranged at one end of the movable rod 56, a clamping groove 58 matched with the clamping block 57 for use is formed in the side wall of the moving block 51, an extension spring 59 is arranged on the outer side of the movable rod 56, a pull button 510 is arranged at the end part of the movable rod 56, two ends of the extension spring 59 are respectively and fixedly connected with the pull button 510 and the moving block 51, a magnetic plate 511 is arranged on the moving block 51, and a handle 512 is arranged on the moving block 51.
The fixing part 6 comprises a fixing block 61 movably arranged in the mounting seat 11, the fixing block 61 is provided with a magnetic plate 511, when the magnetic plates 511 are mutually attracted, the moving part 5 is connected with the fixed part 6, a fixed shaft 62 is rotatably arranged in the fixed block 61, a rotating plate 63 and a driving gear 64 are fixedly arranged on the outer side of the fixed shaft 62, the end part of the pull rope 54 is fixedly connected with the rotating plate 63, racks 65 meshed with the driving gear 64 are arranged on the upper side and the lower side of the driving gear 64, a connecting rod 66 is arranged in the fixed block 61, a sliding rail 67 is arranged at the end part of the connecting rod 66, a sliding block 68 is movably arranged in the sliding rail 67, the sliding block 68 is fixedly connected with the racks 65, a reset spring 69 is arranged in the sliding rail 67, a rotating rod 610 is arranged at the bottom of the fixed block 61, the angle required to be adjusted by matching with the laser emitter 87 and the curbstone to measure the mounting seat 11, a fastener 7 is arranged on the fixed block 61, and the driving gear 64 is tightly fixed in position.
The fastener 7 comprises a screw rod 71 arranged on one side of the fixed block 61, a rotating handle 72 is arranged at the end part of the screw rod 71, and the rotating handle 72 is rotated to drive the screw rod 71 to move so that the bottom end of the screw rod abuts against the driving gear 64.
The transmission part 3 is including rotating the transmission shaft 31 that sets up in the mount pad 11, the transmission shaft 31 outside is provided with drive gear 32 and synchronizing gear 33, drive gear 32 uses with the cooperation of rack 65, drive shaft 31 follows drive gear 32 and synchronizing gear 33 synchronous revolution, the mount pad 11 top is provided with casing 34, it is provided with regulating spindle 35 to rotate on the casing 34, the fixed regulating gear 36 that is provided with in the regulating spindle 35 outside, the synchronizing gear 33 outside is provided with chain 37, it is rotatory to drive regulating gear 36 when synchronizing gear 33 is rotatory, the fixed turning block 38 that is provided with in regulating spindle 35 both ends, turning block 38 with place board 12 fixed connection, be provided with balance spring 39 on the mount pad 11, guarantee to place the steady of board 12.
A movable groove 41 is formed in the mounting seat 11, the positioning element 4 comprises a positioning block 42 movably arranged in the movable groove 41, a positioning groove 43 matched with the positioning block 42 for use is formed in the moving block 51, a positioning rod 44 is arranged on the positioning block 42, a shifting plate 45 is arranged at the end of the positioning rod 44, the shifting plate 45 is pulled to drive the positioning rod 44 to pull the positioning block 42 to move, a positioning spring 46 is arranged in the movable groove 41, and the elastic force of the positioning spring 46 extrudes the shifting plate 45 to drive the positioning block 42 to be inserted into the positioning groove 43.
The knob 86 and the rotating handle 72 are provided with anti-skid lines on the outer sides.
The working principle of the device is as follows:
when the device is used, firstly, the velocimeter 9 is placed on the roadside through the tripod 1, then the laser emitter 87 is turned on to display a line on the ground, the line is parallel to the mounting seat 11, the positioning plate 45 is shifted to drive the positioning rod 44 to pull the positioning block 42 to be separated from the positioning groove 43, then the measuring component 2 is taken down from the mounting seat 11 through the pulling handle 512, the fixed block 61 is placed on the ground to enable one side edge of the fixed block 61 to be parallel to light, then the road edge is attached through the rotating rod 610, at the moment, the rotating angle of the rotating rod 610 is recorded by observing scales on the fixed block 61, then the rotating knob 86 is rotated, the damping shaft 81 is driven to rotate through the meshing of the driving bevel gear 85 and the transmission bevel gear 82, the rotating angle is the recorded angle, at the moment, the transmitting end of the velocimeter 9 is perpendicular to the road surface, then the fixed block 61 is separated from the moving block 51, and the fixed block 61 is placed on the ground, the pull button 510 is pulled to drive the clamping block 57 to be separated from the clamping groove 58, the movable block 51 is enabled to be away from the fixed block 61 while the movable plate 55 is rotated, the bottom end of the movable block 51 is also placed on the ground, the fixed block 61 and the movable block 51 are tightened to enable the pull rope 54 to be tight, the pull rope 54 drives the rotating plate 63 to rotate to be parallel to the road direction, then the rotating handle 72 is rotated to drive the lead screw 71 to advance in a threaded mode to abut against the driving gear 64 to position the lead screw, in the rotating process of the rotating plate 63, the rotating plate 63 drives the driving gear 64 to rotate to drive the rack 65 to move, then the winding drum 53 is used for winding, the fixed block 61 and the movable block 51 are connected through the magnetic plate 511 in an attracting mode, then the fixed block 61 and the movable block 51 are installed in the installation seat 11, in the installation process, the rack 65 drives the transmission gear 32 to rotate, and the transmission gear 32 drives the adjusting gear 36 to rotate through the synchronous gear 33 and the chain 37, and then drive the regulation axle 35 rotatory, drive through turning block 38 and place the board 12 rotatory, can will place board 12 and adjust to be parallel with the road surface trend.
The beneficial effect that this device provided:
according to the invention, the road direction can be measured by the measuring component 2 before the velocimeter 9 is installed, an included angle between the transmitting end of the velocimeter 9 and the direction perpendicular to the road surface can be measured by the rotating rod 610 and the fixing block 61, the transmitting end of the velocimeter 9 is adjusted to be perpendicular to the direction of the road surface and is taken as a reference, the arrangement position of the velocimeter 9 is more accurate by adjusting the mounting seat 11 through the rotating member 8, and in the process of installing the measuring component 2 in the mounting seat 11, the mounting seat 11 is adjusted to be parallel to the road surface direction through the matching of the measuring component 2 and the transmission member 3, so that the speed measuring precision is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a Doppler speed measuring device based on radio signal, includes tripod (1), the activity is provided with tachymeter (9) on tripod (1), its characterized in that: an adjusting box body (10) is arranged on the tripod (1), a rotating piece (8) is arranged in the adjusting box body (10), and the transmitting end of the velocimeter (9) is adjusted to be opposite to the road surface when the velocimeter is installed;
be provided with mount pad (11) on adjusting box (10), the activity is provided with on mount pad (11) places board (12), tachymeter (9) are fixed to be set up place on board (12), the activity is provided with measuring component (2) on mount pad (11), be provided with driving medium (3) in mount pad (11), be provided with setting element (4) on mount pad (11).
2. The doppler velocity measurement device according to claim 1, wherein: the rotating part (8) comprises a damping shaft (81) which is rotatably arranged in the adjusting box body (10), a transmission bevel gear (82) is arranged on the outer side of the damping shaft (81), the transmission bevel gear (82) follows the damping shaft (81) to synchronously rotate, a rotating disc (83) is fixedly arranged at the top end of the damping shaft (81), the mounting seat (11) is arranged on the rotating disc (83) and synchronously rotates along with the same, a driving shaft (84) is rotatably arranged on one side of the adjusting box body (10), a driving bevel gear (85) meshed with the transmission bevel gear (82) is arranged on the outer side of the driving shaft (84), a knob (86) is arranged at the end part of the driving shaft (84), and a laser emitter (87) is arranged at the bottom of the adjusting box body (10).
3. The doppler velocity measurement device according to claim 2, wherein: the measuring component (2) comprises a moving part (5) and a fixing part (6), the moving part (5) comprises a moving block (51) movably arranged in a mounting seat (11), a rotating shaft (52) is rotatably arranged in the moving block (51), a winding drum (53) is arranged on the outer side of the rotating shaft (52), a pulling rope (54) is arranged on the winding drum (53), the other end of the pulling rope (54) is connected with the fixing part (6), a movable plate (55) is arranged at the end part of the rotating shaft (52), the movable plate (55) is rotated to drive the rotating shaft (52) to synchronously rotate, a movable rod (56) is movably arranged on the movable plate (55), a clamping block (57) is arranged at one end of the movable rod (56), a clamping groove (58) matched with the clamping block (57) for use is formed in the side wall of the moving block (51), and a tension spring (59) is arranged on the outer side of the movable rod (56), a pull button (510) is arranged at the end part of the movable rod (56), two ends of the extension spring (59) are respectively and fixedly connected with the pull button (510) and the movable block (51), a magnetic plate (511) is arranged on the movable block (51), and a handle (512) is arranged on the movable block (51).
4. The Doppler velocity measurement device based on radio signals according to claim 3, wherein: the fixing part (6) comprises a fixing block (61) movably arranged in the mounting seat (11), the magnetic plate (511) is arranged on the fixing block (61), the moving part (5) and the fixing part (6) are connected when the magnetic plate (511) is mutually attracted, a fixing shaft (62) is arranged in the fixing block (61) in a rotating mode, a rotating plate (63) and a driving gear (64) are fixedly arranged on the outer side of the fixing shaft (62), the end part of the pull rope (54) is fixedly connected with the rotating plate (63), racks (65) meshed with the pull rope (54) are arranged on the upper side and the lower side of the driving gear (64), a connecting rod (66) is arranged in the fixing block (61), a sliding rail (67) is arranged at the end part of the connecting rod (66), a sliding block (68) is movably arranged in the sliding rail (67), and the sliding block (68) is fixedly connected with the racks (65), be provided with reset spring (69) in slide rail (67), fixed block (61) bottom is provided with dwang (610), the cooperation laser emitter (87) and curbstone are measured the angle that mount pad (11) need be adjusted, be provided with fastener (7) on fixed block (61).
5. The Doppler velocity measurement device based on radio signals according to claim 4, wherein: fastener (7) are including setting up lead screw (71) of fixed block (61) one side, lead screw (71) tip is provided with turning handle (72), and is rotatory turning handle (72) drive lead screw (71) shift makes its bottom butt drive gear (64).
6. The Doppler velocity measurement device based on radio signals according to claim 5, wherein: the transmission part (3) comprises a transmission shaft (31) which is rotatably arranged in the mounting seat (11), a transmission gear (32) and a synchronous gear (33) are arranged on the outer side of the transmission shaft (31), the transmission gear (32) is matched with the rack (65) for use, the transmission shaft (31) follows the transmission gear (32) and the synchronous gear (33) to synchronously rotate, a shell (34) is arranged at the top end of the mounting seat (11), an adjusting shaft (35) is rotatably arranged on the shell (34), an adjusting gear (36) is fixedly arranged on the outer side of the adjusting shaft (35), a chain (37) is arranged on the outer side of the synchronous gear (33), the adjusting gear (36) is driven to rotate when the synchronous gear (33) rotates, rotating blocks (38) are fixedly arranged at two ends of the adjusting shaft (35), and the rotating blocks (38) are fixedly connected with the placing plate (12), and a balance spring (39) is arranged on the mounting seat (11).
7. The Doppler velocity measurement device based on radio signals according to claim 6, wherein: set up movable groove (41) in mount pad (11), setting element (4) are in including the activity setting locating piece (42) in movable groove (41), seted up on movable block (51) with locating piece (42) cooperation constant head tank (43) that use, be provided with locating lever (44) on locating piece (42), locating lever (44) tip is provided with shifting board (45), the pulling shifting board (45) drive locating lever (44) and hold locating piece (42) and remove, be provided with positioning spring (46) in movable groove (41), through the elastic force extrusion of positioning spring (46) shifting board (45) make its drive locating piece (42) with constant head tank (43) are inserted and are closed.
8. The Doppler velocity measurement device based on radio signals according to claim 5, wherein: anti-skid grains are arranged on the outer sides of the knob (86) and the rotating handle (72).
CN202110869791.1A 2021-07-30 2021-07-30 Doppler speed measuring device based on radio signals Active CN113311435B (en)

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CN202110869791.1A CN113311435B (en) 2021-07-30 2021-07-30 Doppler speed measuring device based on radio signals

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CN202110869791.1A CN113311435B (en) 2021-07-30 2021-07-30 Doppler speed measuring device based on radio signals

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CN113311435B CN113311435B (en) 2021-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116449359A (en) * 2023-05-30 2023-07-18 枣庄市民卡管理有限公司 Doppler speed measuring device based on radio information technology

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