CN206469956U - A kind of piezoelectric quartz sensor and single two-wheel identifying device - Google Patents
A kind of piezoelectric quartz sensor and single two-wheel identifying device Download PDFInfo
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- CN206469956U CN206469956U CN201720170856.2U CN201720170856U CN206469956U CN 206469956 U CN206469956 U CN 206469956U CN 201720170856 U CN201720170856 U CN 201720170856U CN 206469956 U CN206469956 U CN 206469956U
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Abstract
The utility model is related to vehicle identifier field, specifically related to a kind of piezoelectric quartz sensor and single two-wheel identifying device, including all-sealed structure part and the piezoelectric quartz crystal plate being arranged in all-sealed structure part, the all-sealed structure part is provided with the seal cavity for being used for installing piezoelectric quartz crystal plate, the piezoelectric quartz crystal plate is fixed in seal cavity, the all-sealed structure part seals seal cavity in the way of pressure seal, the piezoelectric quartz sensor is by the way that piezoelectric quartz crystal plate is arranged in all-sealed structure part with total pressure sealing means, piezoelectric quartz crystal plate is set to be completely enclosed with the external world, fully ensure that its insulation effect, the sensor is in use, the problem of will not occurring sealing structure failure, single two-wheel identifying device that the piezoelectric quartz sensor is constituted is solved due to using the Problem of Failure present in bonding way, service life is significantly lifted, can permanently effective identification tyre type.
Description
Technical field
The utility model is related to vehicle identifier field, particularly a kind of piezoelectric quartz sensor and single two-wheel identification dress
Put.
Background technology
In the prior art, tire recognizer is generally passed when recognizing tire list two-wheel using conductive rubber contact and Hall
Feel being identified.
When recognizing tire list two-wheel using conductive rubber contact：Conductive rubber contact is turned on when being rolled by wheel,
Wheel disconnects when leaving contact, due to conductive rubber can only break-make weak current, therefore contact Comparision easily by contact electricity
The influence of resistance, its theoretical service life is usually no more than 106 times.The use non contact angle measurement of Hall sensor, it uses the longevity
Life is longer, but because Hall sensor has mechanical displacement in identification, and highway environment is more severe, sensor climate,
The influence that dust and vehicle are frequently rolled, fills displacement space, and solidifies, and equivalent to effect after cement solidification, is allowed to produce
Displacement is given birth to, therefore service life is correspondingly seriously reduced, and will be broken down within general 2~3 months so that tyre type identification is lost
Effect.
In the prior art, also have using conventional quartz sensor identification tire list two-wheel, conventional quartz sensor belongs to without position
Displacement sensor, has good stability in terms of resistance to mechanical vibration, pressure and displacement, but conventional quartz sensor is hindered insulation
It is anti-to require high, it is desirable at least up to 109More than Europe, when insulation impedance is less than this numerical value, electric bridge will be unable to normal work.Due to
Highway site environment is poor, and the factor such as awful weather, the temperature difference are big, the immersion of rainwater silt can all influence the insulation effect of sensor,
Traditional quartz transducer uses adhering and sealing technique, and quartz transducer is arranged in structural member, and structural member is carried out by bonding
Sealing, this structure type causes quartz transducer in use, and abutting edge is easily failed, and bonding site is separated from each other,
Sealing structure is caused to lose sealing function so that it is difficult to long-time reliability Work, and single sensor independence, shielding electricity
Cable is longer, and cable is also easy to produce crack in assembling transportation, influences insulation during water immersion, causes sensor long-term
Ensure reliability.
Utility model content
Goal of the invention of the present utility model is：When in the prior art using traditional quartz transducer identification list two-wheel,
Because quartz wafer is arranged in sensor in the way of adhering and sealing in quartz transducer, there is sealing structure and easily fail,
There is provided a kind of piezoelectric quartz sensor and single two-wheel identification dress for the problem of quartz transducer is difficult to long-time reliability Work
Put, the piezoelectric quartz sensor is made by the way that piezoelectric quartz crystal plate is arranged in all-sealed structure part with total pressure sealing means
Piezoelectric quartz crystal plate is completely enclosed with the external world, fully ensures that its insulation effect, the sensor in use, will not occur close
The problem of seal structure fails, single two-wheel identifying device that the piezoelectric quartz sensor is constituted is solved by using bonding way institute
The Problem of Failure of presence, service life is significantly lifted, can permanently effective identification tyre type.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of piezoelectric quartz sensor, including all-sealed structure part and the piezoelectric quartz crystalline substance being arranged in all-sealed structure part
Piece, the all-sealed structure part is provided with the seal cavity for being used for installing piezoelectric quartz crystal plate, and the piezoelectric quartz crystal plate is fixed on close
Seal in cavity, the all-sealed structure part seals seal cavity in the way of pressure seal.
In the prior art, existing quartz transducer uses adhering and sealing technique, the side by piezoelectric quartz crystal plate to be bonded
Formula is sealed, and the quartz transducer of this adhering and sealing mode in use, easily fail by abutting edge, causes to have
Effect sealing so that sensor is easily influenceed by undesirable elements such as awful weather, big, the rainwater silt immersions of the temperature difference, sensor
Insulation impedance be unable to reach requirement, sensor is difficult to long-time reliability Work.
In this programme, piezoelectric quartz crystal plate is fixed in all-sealed structure part in the way of pressure seal, makes piezoelectricity stone
English chip separates completely with external environment, reaches hermetically sealed configuration state, so as to ensure that the insulation effect of piezoelectric quartz crystal plate
Really, the life-span of sensor is made significantly to be lifted.The mode of pressure seal under pressure, is arranged in for structural member by extruding
Seal on sealing surface, reaches the sealing means of fully sealed position, and under pressure, its better tightness, entirely
Seal structural part is the structure type being fully sealed, and inner space and the outside of structural member are not communicated with, piezoelectric quartz crystal plate arrangement
After in all-sealed structure, complete to seal by sealing surface, reach whole sealing status.
As preferred scheme of the present utility model, the all-sealed structure part includes the cylinder for being used to install piezoelectric quartz crystal plate
Top cover for being sealed against is installed on shape base, the tube-like base.All-sealed structure part is set to include tubular bottom
The structure type of seat and top cover, forms seal cavity, piezoelectric quartz crystal plate is arranged in seal cavity, and is passed through after the two combination
The connection of top cover and tube-like base, makes piezoelectric quartz crystal plate be entirely sealed in tube-like base.
As preferred scheme of the present utility model, it is provided with the contact surface of the tube-like base and top cover for installing close
First sealing structure of seal.Top cover is arranged on after tube-like base, in the contact site formation contact surface of the two, and is connect at this
First sealing structure is set in contacting surface, sealing ring is arranged on after the first sealing structure, by being arranged on tube-like base and top cover
Between connector fasten the two so that complete sealing.
The tube-like base is circular sleeve, and its one end is blind end, and the other end is the base openings for installing top cover
End, the top cover is the circular sleeve corresponding with tube-like base, including top cover openend and top closure end, the top cover
The openend end contact of blind end end face and tube-like base, first sealing structure is arranged on the contact surface of the two, is passed
When in use, top cover arrangement fills filler to sensor on road surface in top cover, the openend end face of top cover is concordant with road surface.Pass
In the quartz transducer of system, due to the change of the abrasion on road surface and sensor top layer, and the mechanical strength of elastic structure, lead
The change of transducer sensitivity is caused, makes sensor in the case of fixed threshold, the discrimination reduction of long-play, and use
The top cover of circular sleeve structure, can be prevented effectively from the abrasion on sensor top layer, so as to keep the sensitivity of sensor.
Annular boss is provided with the outer wall of the tube-like base, including positioned at the first annular boss of openend outer wall side
With the second annular boss positioned at blind end outer wall side, the annular boss extends to the outside of tube-like base radial direction, should
The face size of first annular boss is corresponding with the blind end face size of top cover.First annular boss is set, makes tube-like base
Contact surface between top cover is increased, and makes connection therebetween more firm, while enlarged contact face, is conducive to setting sealing knot
Structure, enables the two sealing structure to work stably in a long term.
First sealing structure is the size of the annular groove being opened on first annular boss, its size and sealing ring
Correspondence, in use, sealing ring is arranged in annular groove, in order to realize preferable sealing effectiveness, the size of sealing ring is bigger
In the size of annular groove, the pressure produced by the extruding between tube-like base and top cover realizes sealing.
Installation base is additionally provided with the blind end end face of the top cover, the installation base prolongs to the axial direction of top cover
Stretch, top cover and tube-like base constitute all-sealed structure part in use, the installation base is contacted with the inwall of tube-like base, and
The second seals structure for installing sealing ring is provided with the contact surface, the second seals structure is to be opened in installation base
On annular groove, the size of annular groove is corresponding with the size of sealing ring.
Top cover is arranged on tube-like base, and being bolted makes the two be connected firmly, at top closure end and the first ring
On the end face of shape boss, correspondence is disposed with multiple mounting holes, passes through mounting hole using bolt, top cover and tube-like base are connected
Connect.
Being provided with as preferred scheme of the present utility model, in the tube-like base is used to install the convex of piezoelectric quartz crystal plate
Platform.By setting boss, piezoelectric quartz crystal plate is preferably arranged in tube-like base, and piezoelectricity is delivered to by top cover
Power on quartz wafer is more concentrated, and can effectively improve the susceptibility of sensor.
Be provided with circuit board above the piezoelectric quartz crystal plate, the circuit board to be discoideus, the lateral surface of circuit board with
The inwall laminating of tube-like base, the lower surface of the circuit board is fitted with the upper surface of piezoelectric quartz crystal plate.Take this structure
Form, makes gluing, sealing between circuit board and tube-like base, piezoelectric quartz crystal plate and extraneous better tightness, effectively blocks outer
Influence of boundary's environment to piezoelectric quartz crystal plate.
Push rod is additionally provided between the circuit board and top cover, the push rod is circular shaft shape, and the end of the push rod is provided with
The lug boss of top pressure on circuit boards, the other end of push rod is fitted with top cover, and the push rod and lug boss are integral type structure.
One end of push rod is fitted with top cover to be held out against, and the other end is held out against by lug boss with circuit board, when top cover is arranged on cylinder
When on shape base, by the mating connection of installation base and push rod, make push rod stress, to circuit board formation pressure on top surface, so that complete
Sealing into piezoelectric quartz crystal plate is fixed.
The lug boss is the cylinder boss that diameter is less than body, lug boss and circuit board contacts, and in the pressure of top cover
Under to circuit board and piezoelectric quartz crystal plate formation top pressure, prevent circuit board and piezoelectric quartz crystal plate from loosening, coming off.
Piezoelectric quartz sensor is provided with by shielded cable transmission of monitoring information on the blind end of the tube-like base
Water joint, makes shielding high frequency cable outwards be drawn by water joint, and water joint can effectively block sensor internal and outer
The connection of boundary's environment, makes sensor keep good sealing, realizes hermetically sealed performance.
It is used as preferred scheme of the present utility model, in addition to resetting means.Resetting means is set on piezoelectric quartz sensor,
The resetting means is intelligent reset device, using intelligent reset technology, is automatically reset after wheel leaves, and makes sensor for a long time
Stress zero point is without drift, it is ensured that sensor and amplifying circuit always work in non-saturated region, improves stability and reliability.
Correspondingly, the utility model additionally provides a kind of piezoelectric quartz list two-wheel identifying device, single two-wheel identifying device
Including multiple piezoelectric quartz sensors as described above, multiple piezoelectric quartz sensors are connected with for transmitting the logical of signal
Believe cable.
Single two-wheel identifying device of traditional approach uses single sensor, due to using single sensor to vehicle list two-wheel
During identification, single sensor independence, vehicle when by the identifying device, due to vehicle travel difference, it is impossible to ensure vehicle from
Pass through on same sensor, reduce the accuracy of identification of identifying device, and take this including multiple piezoelectric quartz sensors
Single two-wheel identifying device, each vehicle can improve accuracy of identification by same identifying device.
As preferred scheme of the present utility model, in addition to the algorithm mould being connected with multiple piezoelectric quartz sensors
Block, the external communications cable of algoritic module.The algoritic module includes polyalgorithm unit, and the algorithm unit is intelligence
Algorithm unit, each piezoelectric quartz sensor correspondence one intelligent algorithm unit of connection, passes through intelligent algorithm unit, Intelligent Recognition
Vehicle minimum pressure and maximum pressure, floating reference, automatically adjust sensor output gain amplifier, it is ensured that sensor it is long-term by one
Cause property, improves discrimination, while automatic record erroneous judgement vehicle, the data of arrangement adjust particular algorithm according to data feature values, carried
High discrimination.
As preferred scheme of the present utility model, multiple piezoelectric quartz sensors are evenly arranged on one wire, and
On same level position.When wheel of vehicle is identified installed in road surface for piezoelectric quartz list two-wheel identifying device, by
The path travelled in each vehicle is different, in order to guarantee to monitor all vehicles passed through, by multiple piezoelectric quartz sensors
It is evenly arranged point-blank, sensor is evenly distributed on a certain section on road surface, when vehicle cuts by the road surface
Constantly, uniform sensor can effectively monitor the wheel type of vehicle in face.All piezoelectric quartz sensors are in same level
Position, makes each piezoelectric quartz sensor identical with the relative position on road surface.
As preferred scheme of the present utility model, multiple piezoelectric quartz sensors are respectively connected with shielded cable, described
Shielded cable is arranged in the link spool for being sealed against.Vehicle list two-wheel is identified single traditional sensor,
The shielded cable of sensor is longer, and cable is also easy to produce crack in assembling transportation, influences insulation during water immersion, causes
Sensor can not ensure reliability for a long time, and use the frame mode of link spool, and the link spool is all-sealed structure, can be with
Shielded cable pipe is effectively protected, it is to avoid it in assembling transportation the problem of being damaged.Link spool is quarter bend,
Mounting structure is offered on quarter bend, piezoelectric quartz sensor is arranged on link spool by mounting structure, by being arranged in
Second annular boss of the blind end outer wall side of tube-like base, makes each piezoelectric quartz sensor arrangement thereon, each piezoelectricity stone
Shielded cable is connected with English sensor, sensor is arranged on after link spool, and shielded cable passes through inside link spool.
As preferred scheme of the present utility model, multiple piezoelectric quartz sensors pass through shielded cable and algoritic module
Connection, the shielded cable is double layer screen high frequency cable.Sensor mask cable is set to double layer screen high frequency cable, and made
The shielded cable has both been protected cable not installed by assembling and damaged, added again by being linked after hermetically sealed link spool with algorithm unit
Strong protection, reaches double shielding, long-term use reliability is greatly improved.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, piezoelectric quartz crystal plate is fixed in all-sealed structure part in the way of pressure seal, make piezoelectric quartz crystal plate with
External environment is separated completely, reaches hermetically sealed configuration state, so as to ensure that the insulation effect of piezoelectric quartz crystal plate, makes sensing
The life-span of device is significantly lifted；
2nd, using the frame mode of link spool, shielded cable pipe can effectively be protected, it is to avoid it is transported in assembling
The problem of being damaged during defeated；
3rd, sensor mask cable is set to double layer screen high frequency cable, and the shielded cable is passed through hermetically sealed linkage lines
Guan Houyu algorithm units are linked, and have both been protected cable not installed by assembling and have been damaged, and had strengthened protection again, reach double shielding, greatly carry
Reliability is used for a long time in height.
Brief description of the drawings
Fig. 1 is the structural representation of piezoelectric quartz sensor of the present utility model.
Fig. 2 is the structural representation of single two-wheel identifying device of the present utility model.
Fig. 3 is Fig. 2 top view.
Marked in figure：1- piezoelectric quartz crystal plates, 2- tube-like bases, 3- top covers, the sealing structures of 4- first, 5- connectors, 6-
Annular boss, the first annular boss of 61-, the annular boss of 62- second, 7- installation bases, 8- second seals structures, 9- boss, 10-
Raised head face, 12- circuit boards, 13- push rods, 15- lug bosses, 16- water joints, 17- piezoelectric quartz sensors, 18- order wires
Cable, 19- algoritic modules, 20- link spools, 21- shielded cables, 22- sensor bases.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
Embodiment 1
The present embodiment is applied to identification vehicle list two-wheel type.
Piezoelectric quartz sensor, including all-sealed structure part and the piezoelectric quartz crystal plate being arranged in all-sealed structure part,
The all-sealed structure part is provided with the seal cavity for being used for installing piezoelectric quartz crystal plate, and the piezoelectric quartz crystal plate is fixed on annular seal space
In vivo, the all-sealed structure part seals seal cavity in the way of pressure seal.
In the prior art, existing quartz transducer uses adhering and sealing technique, the side by piezoelectric quartz crystal plate to be bonded
Formula is sealed, and the quartz transducer of this adhering and sealing mode in use, easily fail by abutting edge, causes to have
Effect sealing so that sensor is easily influenceed by undesirable elements such as awful weather, big, the rainwater silt immersions of the temperature difference, sensor
Insulation impedance be unable to reach requirement, sensor is difficult to long-time reliability Work.
In this programme, piezoelectric quartz crystal plate is fixed in all-sealed structure part in the way of pressure seal, makes piezoelectricity stone
English chip separates completely with external environment, reaches hermetically sealed configuration state, so as to ensure that the insulation effect of piezoelectric quartz crystal plate
Really, the life-span of sensor is made significantly to be lifted.The mode of pressure seal under pressure, is arranged in for structural member by extruding
Seal on sealing surface, reaches the state being fully sealed, and under pressure, its better tightness, all-sealed structure
Part is the structure type being fully sealed, and inner space and the outside of structural member are not communicated with, and piezoelectric quartz crystal plate is arranged in hermetically sealed
After in structure, complete to seal by sealing surface.
As shown in figure 1, the all-sealed structure part includes the tube-like base 2 for being used to install piezoelectric quartz crystal plate 1, the cylinder
Top cover 3 for being sealed against is installed on shape base 2, all-sealed structure part is set to include tube-like base 2 and top cover 3
Structure type, forms seal cavity, piezoelectric quartz crystal plate 1 is arranged in seal cavity, and passes through top cover 3 and cylinder after the two combination
The connection of shape base 2, makes piezoelectric quartz crystal plate 1 be entirely sealed in tube-like base 2.
The first sealing structure 4 for installing sealing ring is provided with the contact surface of tube-like base 2 and top cover 3, top cover 3 is pacified
After tube-like base 2, in the contact site formation contact surface of the two, and the first sealing structure 4 is set on the contact surface,
Sealing ring is arranged on after the first sealing structure 4, makes the two tight by being arranged on connector 5 between tube-like base 2 and top cover 3
Gu, so as to complete sealing.
Tube-like base 2 is circular sleeve, and its one end is blind end, and the other end is the base openings end for installing top cover 3,
The top cover 3 is the circular sleeve corresponding with tube-like base 2, including top cover openend and top closure end, the top cover 3
The openend end contact of blind end end face and tube-like base 2, first sealing structure 4 is arranged on the contact surface of the two,
When in use, top cover 3 is arranged on road surface sensor, and filler is filled in top cover 3, and openend end face and the road surface of top cover 3 are put down
Together.In traditional quartz transducer, due to the change of the abrasion on road surface and sensor top layer, and the mechanical strength of elastic structure
Change, cause the change of transducer sensitivity, make sensor in the case of fixed threshold, the discrimination reduction of long-play,
And the top cover of circular sleeve structure is used, the abrasion on sensor top layer can be prevented effectively from, so as to keep the sensitivity of sensor.
Annular boss 6 is provided with the outer wall of the tube-like base 2, including positioned at the first annular convex of openend outer wall side
Platform 61 and the second annular boss 62 positioned at blind end outer wall side, the annular boss 6 is to the outside of the radial direction of tube-like base 2
Extension, the face size of the first annular boss 61 is corresponding with the blind end face size of top cover 3.First annular boss is set
61, the contact surface between tube-like base 2 and top cover 3 is increased, makes connection therebetween more firm.
First sealing structure 4 is to be opened in annular groove on first annular boss 61, its size and sealing ring
Size correspondence, in use, sealing ring is arranged in annular groove, in order to realize preferable sealing effectiveness, the size of sealing ring
Slightly larger than the size of annular groove, by the extruding between tube-like base 2 and top cover 3, sealing is realized.
Installation base 7 is additionally provided with the blind end end face of top cover 3, the axial direction of installation base 7 to the top cover 3 prolongs
Stretch, top cover 3 and tube-like base 2 constitute all-sealed structure part in use, the installation base 7 is contacted with the inwall of tube-like base 2, and
And the second seals structure 8 for installing sealing ring is provided with the contact surface, the second seals structure 8 is to be opened in installation
Annular groove on boss 7, the size of annular groove is corresponding with the size of sealing ring.
Top cover 3 is arranged on tube-like base 2, and being bolted makes the two be connected firmly, in the blind end of top cover 3 and the
On the end face of one annular boss 61, correspondence is disposed with multiple mounting holes, mounting hole is passed through using bolt, by top cover 3 and tubular bottom
Seat 2 is attached.
The boss 9 for being used for installing piezoelectric quartz crystal plate 1 is provided with tube-like base 2, piezoelectric quartz crystal plate 1 is arranged on boss end
On face 10, by setting boss 9, piezoelectric quartz crystal plate 1 is set preferably to be arranged in tube-like base 2, and passed by top cover 3
The power being delivered on piezoelectric quartz crystal plate 1 is more concentrated, and can effectively improve the susceptibility of sensor.
The top of piezoelectric quartz crystal plate 1 is provided with circuit board 12, and circuit board 12 is discoideus, its lateral surface and tube-like base
2 inwall laminating, the upper surface of piezoelectric quartz crystal plate 1 is fitted with circuit board 12, is taken this structure type, is made piezoelectric quartz brilliant
Piece 1 and extraneous better tightness, effectively block influence of the external environment to piezoelectric quartz crystal plate 1.
Push rod 13 is additionally provided between circuit board 12 and top cover 3, the push rod 13 is circular shaft shape, and the end of the push rod 13 is set
The lug boss 15 of top pressure on the circuit board 12 is equipped with, the push rod 13 and lug boss 15 are integral type structure.
The end of push rod 13 is fitted with the end face of top cover 3, other end top pressure on the circuit board 12, when top cover 3 be arranged on cylinder
When on shape base 2, by the mating connection of the push rod 13 of installation base 7, make the stress of push rod 13, to the formation pressure on top surface of circuit board 12,
So as to which the sealing for completing piezoelectric quartz crystal plate 1 is fixed.
Lug boss 15 is the cylinder boss that diameter dimension is more than body diameter, and lug boss 15 is contacted with circuit board 12, and
To circuit board 12 and the formation top pressure of piezoelectric quartz crystal plate 1 under the pressure of top cover 3, prevent circuit board and piezoelectric quartz crystal plate from loosening,
Come off.
Piezoelectric quartz sensor is pacified by the transmission of monitoring information of shielded cable 21 on the blind end of the tube-like base 2
Equipped with water joint 16, shielded cable 21 is set outwards to be drawn by water joint 16, water joint 16 can effectively block sensor
The internal connection with external environment, makes sensor keep good sealing, realizes hermetically sealed performance.
Resetting means is provided with piezoelectric quartz sensor, the device is intelligent reset device, using intelligent reset technology,
Automatically reset after wheel leaves, make sensor long-time stress zero point without drift, it is ensured that sensor and amplifying circuit work all the time
Make, in non-saturated region, to improve stability and reliability.
In the present embodiment, piezoelectric quartz crystal plate is fixed in all-sealed structure part in the way of pressure seal, makes piezoelectricity
Quartz wafer separates completely with external environment, reaches hermetically sealed configuration state, so as to ensure that the insulation of piezoelectric quartz crystal plate
Effect, makes the life-span of sensor significantly be lifted.
Embodiment 2
The present embodiment is applied to identification vehicle list two-wheel type.
As shown in Figures 2 and 3, piezoelectric quartz list two-wheel identifying device, single two-wheel identifying device includes multiple embodiments 1
Described in piezoelectric quartz sensor 17, multiple piezoelectric quartz sensors 17 are connected with the order wire for transmitting signal
Cable 18.
Single two-wheel identifying device of traditional approach uses single sensor, due to using single sensor to vehicle list two-wheel
During identification, single sensor independence, vehicle when by the identifying device, due to vehicle travel difference, it is impossible to ensure vehicle from
Pass through on same sensor, reduce the accuracy of identification of identifying device, and take this including multiple piezoelectric quartz sensors
Single two-wheel identifying device, each vehicle can improve accuracy of identification by same identifying device.
Piezoelectric quartz list two-wheel identifying device also includes the algoritic module being connected with multiple piezoelectric quartz sensors 17
19, the external communications cable 18 of algoritic module 19, algoritic module 19 includes polyalgorithm unit, and the algorithm unit is intelligence
Energy algorithm unit, each piezoelectric quartz sensor correspondence one intelligent algorithm unit of connection, passes through intelligent algorithm unit, intelligence is known
Other vehicle minimum pressure and maximum pressure, floating reference, automatically adjust sensor output gain amplifier, it is ensured that sensor it is long-term
Uniformity, improves discrimination, while automatic record erroneous judgement vehicle, the data of arrangement adjust particular algorithm according to data feature values,
Improve discrimination.
Multiple piezoelectric quartz sensors 17 are evenly arranged on one wire, and on same level position, work as pressure
When wheel of vehicle is identified installed in road surface for calcium carbide English list two-wheel identifying device, due to each vehicle travel path not
Together, in order to guarantee to monitor all vehicles passed through, multiple piezoelectric quartz sensors is evenly arranged point-blank, made
Sensor is evenly distributed on a certain section on road surface, when vehicle by the section on the road surface constantly, uniform sensor can have
Effect monitors the wheel type of vehicle.All piezoelectric quartz sensors are in same level position, sense each piezoelectric quartz
Device is identical with the relative position on road surface.
Multiple piezoelectric quartz sensors 17 are respectively connected with shielded cable 21, and the shielded cable 21 is arranged in for inciting somebody to action
It is sealedly in link spool 20, and vehicle list two-wheel is identified single traditional sensor, the shielded cable of sensor compared with
Long, cable is also easy to produce crack in assembling transportation, influences insulation during water immersion, causes sensor to ensure for a long time
Reliability, and the frame mode of link spool 20 is used, the link spool 20 is all-sealed structure, and shielded cable 21 can be entered
Row effectively protection, it is to avoid it in assembling transportation the problem of being damaged.Link spool 20 is quarter bend, is opened up on quarter bend
There is mounting structure, piezoelectric quartz sensor 17 is arranged on link spool 20 by mounting structure, and the mounting structure is sensor
Pedestal 22, the sensor base 22 is the second annular boss of the blind end outer wall side for being arranged in tube-like base, makes each pressure
Electric quartz transducer 17 is arranged on link spool 20, and shielded cable 21 is connected with each piezoelectric quartz sensor 17, is sensed
Device is arranged on after link spool 20, and shielded cable 21 passes through inside link spool 20.In fig. 2, in order to express link spool
Position relationship between 20 and shielded cable 21, in shielded cable 21 to have been carried out to Visualization, actual product, shielding electricity
Cable 21 is arranged in link spool 20, is invisible mode.
Multiple piezoelectric quartz sensors 17 are connected by shielded cable 21 with algoritic module 19, the shielded cable 21
For double layer screen high frequency cable, sensor mask cable is set to double layer screen high frequency cable, and it is complete to pass through the shielded cable
Linked after sealing link spool with algorithm unit, both protected cable not installed by assembling and damaged, strengthened protection again, reach double-deck guarantor
Shield, is greatly improved long-term use reliability.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of piezoelectric quartz sensor, it is characterised in that including all-sealed structure part and be arranged in all-sealed structure part
Piezoelectric quartz crystal plate, the all-sealed structure part is provided with the seal cavity for being used for installing piezoelectric quartz crystal plate, and the piezoelectric quartz is brilliant
Piece is fixed in seal cavity, and the all-sealed structure part seals seal cavity in the way of pressure seal.
2. piezoelectric quartz sensor according to claim 1, it is characterised in that the all-sealed structure part includes being used to pacify
Fill the top cover being provided with the tube-like base of piezoelectric quartz crystal plate, the tube-like base for being sealed against.
3. piezoelectric quartz sensor according to claim 2, it is characterised in that the contact surface of the tube-like base and top cover
On be provided with the first sealing structure for installing sealing ring.
4. piezoelectric quartz sensor according to claim 2, it is characterised in that being provided with the tube-like base is used to install
The boss of piezoelectric quartz crystal plate.
5. the piezoelectric quartz sensor according to one of claim 1-4, it is characterised in that also including resetting means.
6. a kind of piezoelectric quartz list two-wheel identifying device, it is characterised in that single two-wheel identifying device includes multiple as right will
The piezoelectric quartz sensor described in one of 1-5 is sought, multiple piezoelectric quartz sensors are connected with the communication for transmitting signal
Cable.
7. piezoelectric quartz list two-wheel identifying device according to claim 6, it is characterised in that also including with multiple pressures
The algoritic module of electric quartz transducer connection, the external communications cable of algoritic module.
8. piezoelectric quartz list two-wheel identifying device according to claim 7, it is characterised in that multiple piezoelectric quartzes are passed
Sensor is evenly arranged on one wire, and on same level position.
9. piezoelectric quartz list two-wheel identifying device according to claim 6, it is characterised in that multiple piezoelectric quartzes are passed
Sensor is respectively connected with shielded cable, and the shielded cable is arranged in the link spool for being sealed against.
10. the piezoelectric quartz list two-wheel identifying device according to one of claim 7-9, it is characterised in that multiple pressures
Electric quartz transducer is connected by shielded cable with algoritic module, and the shielded cable is double layer screen high frequency cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170856.2U CN206469956U (en) | 2017-02-24 | 2017-02-24 | A kind of piezoelectric quartz sensor and single two-wheel identifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170856.2U CN206469956U (en) | 2017-02-24 | 2017-02-24 | A kind of piezoelectric quartz sensor and single two-wheel identifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206469956U true CN206469956U (en) | 2017-09-05 |
Family
ID=59708524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720170856.2U Active CN206469956U (en) | 2017-02-24 | 2017-02-24 | A kind of piezoelectric quartz sensor and single two-wheel identifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206469956U (en) |
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2017
- 2017-02-24 CN CN201720170856.2U patent/CN206469956U/en active Active
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