CN109995421A - Tuner received signal detection device - Google Patents
Tuner received signal detection device Download PDFInfo
- Publication number
- CN109995421A CN109995421A CN201910362101.6A CN201910362101A CN109995421A CN 109995421 A CN109995421 A CN 109995421A CN 201910362101 A CN201910362101 A CN 201910362101A CN 109995421 A CN109995421 A CN 109995421A
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- China
- Prior art keywords
- fixed
- tuner
- detector
- plate
- shielded frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 229920000742 Cotton Polymers 0.000 claims abstract description 14
- 244000309464 bull Species 0.000 claims description 18
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 230000008054 signal transmission Effects 0.000 claims description 10
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 3
- 244000152100 Sorbus torminalis Species 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Structure Of Receivers (AREA)
Abstract
The invention provides a tuner received signal detection device, which comprises an antenna, a tuner main body, a connecting wire and a detector, wherein a cleaning mechanism is fixed at the upper end of the antenna, the tuner main body is fixed at the upper end of the cleaning mechanism, the front upper part of the tuner main body is connected with the detector through the connecting wire, and the detector is fixed in a protection mechanism. Realized carrying out filterable purpose to the leaf, and be convenient for clean tuner main part top through clean cotton, also realized the purpose of putting in order and protecting the connecting wire, be convenient for look for, and be convenient for protect the detector, the safety in utilization is high.
Description
Technical field
The present invention is a kind of tuner reception signal supervisory instrument, belongs to tuner apparatus field.
Background technique
Tuner in digital satellite signal reception system is mainly used for amplifying low noise and down coversion and intermediate frequency.Satellite
Apart from the earth apart from larger, in this case, the electromagnetic wave signal that satellite is sent is passed to very faint when ground, signal
It is submerged in noise, the demodulation threshold signal level of receiver is not achieved in level value, and ground digital satellite signal receiving system can not detect downlink
Signal causes biggish distorted signals, therefore needs to be arranged special element in digital satellite signal system and carry out low noise
Amplification, be generally used the form that tuner is connected with feed, form integrated feed to amplify low noise.
Existing tuner is after receiving Big Dipper satellite signal, it usually needs by detector to reception signal
Power is detected, however existing detector and connecting line be it is separated, cause its be not easy to carry out connecting line it is whole
Reason, and carrying out in use, individually searching connecting line, heavy workload, and tuner and antenna is needed not to have cleaning
Function, easily cause leaf to be deposited in inner antenna, influence the reception of signal, it is therefore desirable to which a kind of tuner receives signal detection
Device solves the above problems.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of tuners to receive signal supervisory instrument, with
Solve the problems mentioned above in the background art.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of tuner receives signal
Detection device, including antenna, tuner main body, connecting line and detector, the upper antenna end is fixed with cleaning mechanism, described
Cleaning mechanism upper end is fixed with tuner main body, and tuner main body front upper place is connected by connecting line with detector, institute
Detector is stated to be fixed on inside protection mechanism, the cleaning mechanism include support plate, support rod, cleaning cotton, sliding block, magnetite block,
Handle, spring one, polished rod, bull stick, fixed link, fixed plate and strainer, the protection mechanism includes connecting plate, U-shaped backplate, dark
Detain male, shielded frame, L-type bottom plate, rubber fender, hidden discount mother, spring two, blend stop and card slot.
Further, in the cleaning mechanism, the support plate is fixed on tuner lower body face, the support plate
Lower end is rotatablely connected by bearing and support rod, and the support rod lower end and strainer are rotatablely connected, and the strainer is fixed on antenna
Inner top, the fixed plate suit is fixed on support rod, and is located at strainer upper surface, and the fixed plate rear and front end passes through
Fixed link is connect with bar rotation, and the bull stick upper surface is fixed with handle, and the handle upper end face, which is inlayed, is fixed with magnetite block,
Polished rod is fixed with inside the bull stick, the sliding block is slidably connected on polished rod, and sliding block outer end face passes through spring one and bull stick
It is connected, the spring one is sleeved on polished rod, and the sliding block inner face stickup is fixed with cleaning cotton.
Further, the handle annular side is machined with V-type anti-skid chequer, and user of service rotates bull stick, realizes
Magnetic connects two magnetite blocks each other, and then handle is held and lifted, convenient for carrying to the present apparatus.
Further, the upper antenna end is fixedly connected by strut with support plate, and support plate is fixed in realization, is kept away
Exempt from support rod rotation and drives support plate rotation.
Further, in the protection mechanism, the shielded frame suit is fixed on the detector, the shielded frame
Upper surface is fixed with connecting plate, and the connecting plate upper end is machined with card slot, and the U-shaped backplate is slidably connected at shielded frame upper end
Face, the connecting plate are located inside U-shaped backplate, and shielded frame lower end surface bilateral symmetry is fixed there are two L-type bottom plate, and two
Rear portion is fixed with blend stop between the L-type bottom plate, and the blend stop front end is connected by spring two with rubber fender, the rubber
Protection pad and spring two are respectively positioned between two L-type bottom plates, and the rubber fender front end face, which is inlayed, is fixed with hidden discount mother, described anti-
Shield frame front upper place, which is inlayed, is fixed with hidden discount public affairs.
Further, the shielded frame left and right ends are provided with annulus, and the annulus is weldingly fixed on U-shaped handlebar stem
Rear end, the U-shaped handlebar stem are located at detector front, and fastening bolt is provided on the annulus, and the fastening bolt inner end is worn
Annulus to be crossed, and is connected by screw thread with shielded frame left and right ends, U-shaped handlebar stem is convenient for being rotated around fastening bolt,
It realizes and detector is carried, fastening bolt rotation is convenient for carrying out annulus to hold out against fixation, convenient for the position to U-shaped handlebar stem
It sets and is fixed.
Further, the fixed draw runner in left and right ends in the U-shaped backplate, and draw runner is slidably connected at shielded frame upper end
Interior, the card slot is equipped at least two, and at least two card slots are equidistantly machined in connecting plate upper surface, and connecting line is convenient for putting
It sets in card slot, realization arranges connecting line, and U-shaped backplate is convenient for protecting connecting line.
Further, L-type bottom plate lower end surface, which is pasted, is fixed with wear-resistant pad, and wear-resistant pad improves the support of L-type bottom plate
Stability and service life, rubber fender are then convenient for protecting detector front.
Further, the detector includes signal processing module, signal transmission module and display screen, at the signal
Reason module one end is connected with tuner main body, and the signal processing module other end is connected with signal transmission module, described
The signal transmission module other end is connected with display screen, realizes and high-frequency detection signal is handled and shown.
Beneficial effects of the present invention: a kind of tuner of the invention receives signal supervisory instrument, passes through addition support plate, branch
Strut, cleaning cotton, sliding block, magnetite block, handle, spring one, polished rod, bull stick, fixed link, fixed plate and strainer, realize pair
The purpose that leaf is filtered, and convenient for being cleaned by cleaning cotton to tuner body top.
The present invention is by addition connecting plate, U-shaped backplate, hidden discount are male, shielded frame, L-type bottom plate, rubber fender, hidden discount mother,
Spring two, blend stop and card slot realize the purpose for being arranged and being protected to connecting line, convenient for finding, and convenient for inspection
Device is surveyed to be protected, it is safe to use.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram that a kind of tuner of the present invention receives signal supervisory instrument；
Fig. 2 is the structural schematic diagram that a kind of tuner of the present invention receives cleaning mechanism in signal supervisory instrument；
Fig. 3 is the structural schematic diagram that a kind of tuner of the present invention receives sliding block and cleaning cotton in signal supervisory instrument；
Fig. 4 is the structural schematic diagram that a kind of tuner of the present invention receives protection mechanism in signal supervisory instrument；
Fig. 5 is the assembly signal that a kind of tuner of the present invention receives rubber fender, spring two and blend stop in signal supervisory instrument
Figure；
Fig. 6 is the structural schematic diagram that a kind of tuner of the present invention receives connecting plate and card slot in signal supervisory instrument；
In figure: 1- antenna, 2- cleaning mechanism, 3- tuner main body, 4- connecting line, 5- protection mechanism, 6- detector, 201- support
Plate, 202- support rod, 203- cleaning cotton, 204- sliding block, 205- magnetite block, 206- handle, 207- spring one, 208- polished rod,
209- bull stick, 210- fixed link, 211- fixed plate, 212- strainer, 501- connecting plate, 502-U type backplate, 503- hidden discount be public,
504- shielded frame, 505-L type bottom plate, 506- rubber fender, 507- hidden discount mother, 508- spring two, 509- blend stop, 510- card
Slot.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Fig. 1-Fig. 6 is please referred to, the present invention provides a kind of technical solution: a kind of tuner reception signal supervisory instrument, including
Antenna 1, tuner main body 3, connecting line 4 and detector 6,1 upper end of antenna are fixed with cleaning mechanism 2, and 2 upper end of cleaning mechanism is solid
Surely there is tuner main body 3,3 front upper place of tuner main body is connected by connecting line 4 with detector 6, and detector 6 is fixed on protection
Inside mechanism 5, cleaning mechanism 2 includes support plate 201, support rod 202, cleaning cotton 203, sliding block 204, magnetite block 205, handle
206, spring 1, polished rod 208, bull stick 209, fixed link 210, fixed plate 211 and strainer 212, protection mechanism 5 include connecting
Fishplate bar 501, U-shaped backplate 502, hidden discount be male 503, shielded frame 504, L-type bottom plate 505, rubber fender 506, hidden discount mother 507, bullet
Spring 2 508, blend stop 509 and card slot 510.
In cleaning mechanism 2, support plate 201 is fixed on 3 lower end surface of tuner main body, and 201 lower end of support plate passes through bearing
It being rotatablely connected with support rod 202,202 lower end of support rod and strainer 212 are rotatablely connected, and strainer 212 is fixed on 1 inner top of antenna,
The suit of fixed plate 211 is fixed on support rod 202, and is located at 212 upper surface of strainer, and 211 rear and front end of fixed plate passes through solid
Fixed pole 210 and bull stick 209 are rotatablely connected, and 209 upper surface of bull stick is fixed with handle 206, and 206 upper surface of handle, which is inlayed, is fixed with magnetic
Stone 205 is fixed with polished rod 208 inside bull stick 209, and sliding block 204 is slidably connected on polished rod 208, and 204 outer end face of sliding block is logical
It crosses spring 1 to be connected with bull stick 209, spring 1 is sleeved on polished rod 208, and the stickup of 204 inner face of sliding block is fixed with clear
Clean cotton 203.
In protection mechanism 5, the suit of shielded frame 504 is fixed on detector 6, and 504 upper surface of shielded frame is fixed with
Connecting plate 501,501 upper end of connecting plate are machined with card slot 510, and U-shaped backplate 502 is slidably connected at 504 upper surface of shielded frame, even
Fishplate bar 501 is located inside U-shaped backplate 502, and 504 lower end surface of shielded frame bilateral symmetry is fixed, and there are two L-type bottom plate 505, two L
Rear portion is fixed with blend stop 509 between type bottom plate 505, and 509 front end of blend stop is connected by spring 2 508 with rubber fender 506, rubber
Glue protection pad 506 and spring 2 508 are respectively positioned between two L-type bottom plates 505, and 506 front end face of rubber fender, which is inlayed, to be fixed with secretly
Mother buckle 507,504 front upper place of shielded frame, which is inlayed, is fixed with hidden discount public affairs 503.
As an embodiment of the present invention: 206 annular side of handle is machined with V-type anti-skid chequer, and user of service, which holds, to be turned
Bar 209 is simultaneously rotated up around 210 central axes of fixed link, to be rotated up with fixed handle 206 and magnetite block 205, in turn
Realize that magnetic connects each other between two magnetite blocks 205, then user of service holds handle 206 and lifts upwards, real
Now the present apparatus is carried.
As an embodiment of the present invention: 1 upper end of antenna is fixedly connected by strut with support plate 201, is realized to branch
Fagging 201 is fixed, and avoids the rotation of support rod 202 that support plate 201 is driven to rotate, user of service holds support rod 202 and goes forward side by side
Row rotation, the rotation of support rod 202 drives fixed plate 211 to rotate, and then bull stick 209 is driven to rotate, and realizes band 212 upper end of electric filter
The leaf in face is rotated, and clears up from strainer 212, realizes clean purpose, is moved out then along polished rod 208
Movable slider 204 then after two magnetite blocks 205 each other magnetic connection, is unclamped and is slided to compress to spring 1
Block 204, at this time under the bounce effect of spring 1 band movable slider 204 and cleaning cotton 203 along polished rod 208 to moving down
It is dynamic, it realizes that cleaning cotton 203 is in contact with 3 upper surface of tuner main body, fixed plate 211 is then rotated, to drive cleaning cotton 203
Rotation is realized to carrying out clean purpose at the top of tuner main body 3.
As an embodiment of the present invention: 504 left and right ends of shielded frame are provided with annulus, and annulus is weldingly fixed on
U-shaped handle rod rear end, U-shaped handlebar stem are located at 6 front of detector, fastening bolt are provided on annulus, and fastening bolt inner end passes through
Annulus, and be connected by screw thread with 504 left and right ends of shielded frame, U-shaped handlebar stem is convenient for being rotated around fastening bolt,
It realizes and detector 6 is carried, fastening bolt is rotated and moved inward under threaded function, and annulus is pressed from both sides in realization
Tightly, and then to handlebar stem it is fixed, is fixed convenient for the position to U-shaped handlebar stem.
As an embodiment of the present invention: the fixed draw runner in left and right ends in U-shaped backplate 502, and draw runner is slidably connected
In 504 upper end of shielded frame, card slot 510 is equipped at least two, and at least two card slots 510 are equidistantly machined in connecting plate 501
Upper surface, user of service expose connecting plate 501 by the U-shaped backplate 502 of draw runner forward slip, realization, then will connection
Line 4 is conveniently placed in card slot 510, and realization arranges connecting line 4, is then again divided into U-shaped backplate 502 by draw runner and is prevented
504 upper end of frame is protected, convenient for protecting connecting line 4.
As an embodiment of the present invention: 505 lower end surface of L-type bottom plate, which is pasted, is fixed with wear-resistant pad, and wear-resistant pad improves L
The stability of strutting system and service life of type bottom plate 505, user of service hold rubber fender 506 and are pulled along, rubber fender
506 move forward to stretch spring 2 508, and then hidden discount mother 507 is connected in hidden discount male 503, and then realizes
Rubber fender 506 is covered on 6 front of detector, realizes that rubber fender 506 then protects 6 front of detector, in needs pair
Detector 6 carries out in use, hidden discount mother 507 is separated with hidden discount male 503, and in the case where the bounce of spring 2 508 is acted on to rubber
Glue protection pad 506 is resetted.
As an embodiment of the present invention: detector 6 includes signal processing module, signal transmission module and display
Screen, signal processing module one end are connected with tuner main body 3, and the signal processing module other end is connected with signal transmission module
It connects, the signal transmission module other end is connected with display screen, and signal processing module is used for initial to extracting in tuner main body 3
Measuring signal carries out High frequency filter, exports high-frequency signal measurement, and signal transmission module is aobvious for high-frequency signal measurement to be transmitted to
Display screen realizes and high-frequency detection signal is handled and shown.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of tuner receives signal supervisory instrument, including antenna, tuner main body, connecting line and detector, feature
Be: the upper antenna end is fixed with cleaning mechanism, and the cleaning mechanism upper end is fixed with tuner main body, the tuner master
Body front upper place is connected by connecting line with detector, and the detector is fixed on inside protection mechanism, the cleaning mechanism packet
Include support plate, support rod, cleaning cotton, sliding block, magnetite block, handle, spring one, polished rod, bull stick, fixed link, fixed plate and filter
Net, the protection mechanism include that male connecting plate, U-shaped backplate, hidden discount, shielded frame, L-type bottom plate, rubber fender, hidden discount be female, bullet
Spring two, blend stop and card slot.
2. a kind of tuner according to claim 1 receives signal supervisory instrument, it is characterised in that: in the cleaning mechanism
In, the support plate is fixed on tuner lower body face, and the support plate lower end is rotatablely connected by bearing and support rod, institute
It states support rod lower end and strainer is rotatablely connected, the strainer is fixed on antenna inner top, and the fixed plate suit is fixed on support
On bar, and it is located at strainer upper surface, the fixed plate rear and front end passes through fixed link and connect with bar rotation, on the bull stick
End face is fixed with handle, and the handle upper end face, which is inlayed, is fixed with magnetite block, and polished rod, the sliding block are fixed with inside the bull stick
It is slidably connected on polished rod, and sliding block outer end face is connected by spring one with bull stick, the spring one is sleeved on polished rod, institute
It states the stickup of sliding block inner face and is fixed with cleaning cotton.
3. a kind of tuner according to claim 2 receives signal supervisory instrument, it is characterised in that: the handle annular side
Face is machined with V-type anti-skid chequer, and user of service rotates bull stick, realizes that magnetic connects two magnetite blocks each other, then opponent
Handle is held and is lifted, convenient for carrying to the present apparatus.
4. a kind of tuner according to claim 2 receives signal supervisory instrument, it is characterised in that: the upper antenna end is logical
It crosses strut to be fixedly connected with support plate, support plate is fixed in realization, and support rod rotation is avoided to drive support plate rotation.
5. a kind of tuner according to claim 1 receives signal supervisory instrument, it is characterised in that: in the protection mechanism
In, shielded frame suit is fixed on the detector, and the shielded frame upper surface is fixed with connecting plate, on the connecting plate
End is machined with card slot, and the U-shaped backplate is slidably connected at shielded frame upper surface, and the connecting plate is located inside U-shaped backplate, institute
It is fixed there are two L-type bottom plate to state shielded frame lower end surface bilateral symmetry, rear portion is fixed with blend stop between two L-type bottom plates,
The blend stop front end is connected by spring two with rubber fender, and the rubber fender and spring two are respectively positioned on two L-type bottoms
Between plate, the rubber fender front end face, which is inlayed, is fixed with hidden discount mother, and the shielded frame front upper place, which is inlayed, is fixed with hidden discount public affairs.
6. a kind of tuner according to claim 5 receives signal supervisory instrument, it is characterised in that: the shielded frame is left
Right both ends are provided with annulus, and the annulus is weldingly fixed on U-shaped handle rod rear end, before the U-shaped handlebar stem is located at detector
Portion is provided with fastening bolt on the annulus, and the fastening bolt inner end passes through annulus, and passes through screw thread and shielded frame or so
Both ends are connected, and U-shaped handlebar stem is convenient for being rotated around fastening bolt, realize and carry to detector, fastening bolt
Rotation is fixed convenient for carrying out holding out against fixation to annulus convenient for the position to U-shaped handlebar stem.
7. a kind of tuner according to claim 5 receives signal supervisory instrument, it is characterised in that: in the U-shaped backplate
The fixed draw runner in left and right ends, and draw runner is slidably connected in shielded frame upper end, the card slot is equipped at least two, at least two
A card slot is equidistantly machined in connecting plate upper surface, and connecting line is conveniently placed in card slot, is realized whole to connecting line progress
Reason, U-shaped backplate are convenient for protecting connecting line.
8. a kind of tuner according to claim 5 receives signal supervisory instrument, it is characterised in that: under the L-type bottom plate
End face, which is pasted, is fixed with wear-resistant pad, and wear-resistant pad improves the stability of strutting system and service life of L-type bottom plate, and rubber fender is then just
It is protected in detector front.
9. a kind of tuner according to claim 1 receives signal supervisory instrument, it is characterised in that: the detector includes
Signal processing module, signal transmission module and display screen, described signal processing module one end are connected with tuner main body, institute
It states the signal processing module other end to be connected with signal transmission module, the signal transmission module other end is connected with display screen
It connects, realizes and high-frequency detection signal is handled and shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362101.6A CN109995421B (en) | 2019-04-30 | 2019-04-30 | Tuner received signal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362101.6A CN109995421B (en) | 2019-04-30 | 2019-04-30 | Tuner received signal detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109995421A true CN109995421A (en) | 2019-07-09 |
| CN109995421B CN109995421B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910362101.6A Active CN109995421B (en) | 2019-04-30 | 2019-04-30 | Tuner received signal detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375731A (en) * | 2021-07-22 | 2021-09-10 | 江苏东冠智能科技有限公司 | Prevent fire door protection factor of safety detecting system |
| CN115051760A (en) * | 2022-06-02 | 2022-09-13 | 中际医学科技(山东)有限公司 | Ultra-wideband small radio frequency antenna signal quality detection protection device for close-range detection |
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