CN208907832U - A kind of not parking weighing device that quartz is combined with piezoresistive transducer - Google Patents
A kind of not parking weighing device that quartz is combined with piezoresistive transducer Download PDFInfo
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- CN208907832U CN208907832U CN201821822350.6U CN201821822350U CN208907832U CN 208907832 U CN208907832 U CN 208907832U CN 201821822350 U CN201821822350 U CN 201821822350U CN 208907832 U CN208907832 U CN 208907832U
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Abstract
This application involves a kind of not parking weighing devices that quartz is combined with piezoresistive transducer, and system includes weighing platform and controller；Weighing platform includes two ground induction coils being laid on lane, at least two rows of quartz transducers and at least two groups piezoresistance sensor；Receive in the acquisition initial signal of ground induction coil transmission to the acquisition termination signal this period for receiving that ground induction coil sends in controller, waveform signal that each quartz transducer and each piezoresistance sensor generate when collecting vehicle wheel rolls respectively is simultaneously transmitted to controller, and controller calculates the weighing value of vehicle according to waveform signal.The not parking weighing device that above-mentioned quartz is combined with piezoresistive transducer includes two kinds of sensor, so that the waveform signal of detection is more accurate, to keep the weighing value for the vehicle being calculated according to waveform signal more accurate.
Description
Technical field
This application involves weighing technology fields, more particularly to a kind of not parking title that quartz is combined with piezoresistive transducer
Refitting is set.
Background technique
Currently, whole nation overwhelming majority province highway carries out weight metering charging, the pass cost collected is according to each axis of automobile
The gross vehicle weight that axis re-computation obtains, also, judge whether to meet national mark again according to the axis of resulting automobile gross vehicle weight and each axis
The limit for tonnage requirement of automobile gross weight as defined in standard and each axis axis weight.Since highway transportation overrun and overload will lead to bridge, highway uses
Service life falls sharply, research shows that lorry operation speed per hour is 50 kilometers/hour, gross combination weight or each axis axis transfinite again 30% when, highway
Maintenance costs increases by 200%；Vehicle axle load is above standard axis when carrying 100%, and lorry travels and is equivalent to mark bituminous pavement 1 time
Fiducial axis carries the damage of 256 generations, and lorry travels the cement pavement 1 time damage for being equivalent to standard axle load 65536 times generations；Acknowledgement of consignment
People's overload transport is every to make a profit 1 yuan, and highway administration department needs to put into 100 yuan just to conserve to damage road more.China is high
Fast bituminous pavement design for highway service life is usually 15 years, but since overload transport influences, part way reduced service life
It is 5 to 8 years, it is a small number of even to shorten to 2 to 3 years." transportation information " 13 " the development rule of Department of Transportation's publication
Draw " it clearly proposes " to move forward steadily non-at-scene law enforcement with information-based means, realize the synthesis inspection of illegal activities and discriminate automatically
Not.The networking work for reinforcing the non-at-scene law enforcement of overload remediation, watershed management, fortune political affairs management etc., improves Overload transportation networking
Joint control ability ", " opinion of the Department of Transportation about the construction of comprehensive in-depth communications and transportation ruling by law government department " (hand over method hair (2015)
No. 126) in also require " to reinforce administrative law enforcement informatization, actively reform with information-based propulsion traditional law enforcement mode, group
Traffic freight forwarder political affairs law enforcement Integrated Management Information System engineering construction and implementation are casted off into, non-at-scene law enforcement, movement are actively promoted
The modes such as law enforcement ".As it can be seen that accurately detecting that the weight of vehicle is just particularly important.
Currently, one is axle weight scales, another is vehicle scale there are two types of common dynamic vehicle weighing apparatus.Vehicle
The weighing principle of scale is integrally to weigh after vehicle reaches weighing apparatus completely to vehicle, can the gross vehicle weight to automobile accurately surveyed
Amount, still, the axis tuple measured is according to being that measuring and calculating obtains roughly during vehicle reaches weighing apparatus, the reason is that, vehicle exists
Mutually impacted when reaching weighing apparatus by adjacent axis, engine luggine situations such as interference, it is excessive to there is uniaxial or axis group weighting error
The problem of.The weighing principle of axle weight scale is that vehicle dynamic individually weighs to each independent axes of vehicle when passing through weighing apparatus, energy
It is enough individually to be weighed again to the axis of each axis, but there is a problem of stability difference, it is mainly shown as: first is that more tires or few
Tire, as twin tires is judged as single tire；Second is that multiaxis or few axis, to will affect the axis weight accuracy measured, and then influence
The gross vehicle weight accuracy obtained according to axis re-computation will finally directly affect increasing or decreasing for pass cost, easily cause charge
Member and driver's contradiction are easy to increase the severity of charge station's congestion, cause the query of society and discontented, reduce highway
Service level.As it can be seen that all there is weighing inaccuracy, the big problem of error in current weighing method.
Utility model content
Based on this, it is necessary in view of the above technical problems, provide a kind of quartz combined with piezoresistive transducer it is not parking
Weighing device.
A kind of not parking weighing device that quartz is combined with piezoresistive transducer, including weighing platform and controller；It is described
Weighing platform includes two ground induction coils being laid on lane, at least two rows of quartz transducers and at least two groups pressure drag sensing
Device；Two ground induction coils, at least two rows of quartz transducers and at least two groups piezoresistance sensor are separately connected the controller；Two
The ground induction coil is one in front and one in back respectively arranged on lane, and be respectively used to the controller send acquisition initial signal and
Acquire termination signal；
Quartz transducer described in each row includes two quartz piezoelectric sensors, and two rectangular slabs of stone in every row's quartz transducer
The length value of English piezoelectric transducer, which is added, is equal to lane width value, and is separately positioned on left half lane and right half lane；Adjacent two
It arranges spacing between the quartz transducer to be arranged, and is set between two ground induction coils；
Piezoresistance sensor described at least two groups is separately positioned on left half lane and right half lane, and pressure drag described in each group passes
Sensor includes multiple piezoresistance sensors；
Receive acquisition initial signal that the ground induction coil is sent to receiving the ground induction coil transmission in controller
It acquires in termination signal this period, each described quartz transducer and each described piezoresistance sensor acquire wheel respectively
The waveform signal that generates when rolling simultaneously is transmitted to the controller, and the controller calculates the title of vehicle according to the waveform signal
Weight values.
The not parking weighing device that the quartz of the utility model is combined with piezoresistive transducer includes weighing platform and control
Device；Wherein weighing platform includes two ground induction coils being laid on lane, at least two rows of quartz transducers and at least two groups pressure
Sensor is hindered, two ground induction coils are respectively used to send acquisition initial signal and acquisition termination signal to controller, to indicate stone
English sensor and piezoresistance sensor are acquired when vehicle drives into weighing platform region to leaving in this period of weighing platform region
The waveform signal that generates when wheel rolls simultaneously is transmitted to controller, and controller calculates the weighing value of vehicle according to waveform signal.On
The not parking weighing device that the quartz stated is combined with piezoresistive transducer includes two kinds of weighing sensor, backstage algorithm root
According to the waveform signal COMPREHENSIVE CALCULATING of detection, so that the weighing value of the vehicle made is more accurate.
Further, further includes: charge amplifier；The charge amplifier is separately connected each described quartz transducer
With the controller；
The charge amplifier amplifies processing to the waveform signal, and treated that waveform signal is sent to is described
Controller.
Further, further includes: analog-to-digital conversion module；The analog-to-digital conversion module be used for treated waveform signal into
Row analog-to-digital conversion generates digital signal, and by the data signal transmission to the controller.
Further, the controller calculates the speed of service of the vehicle according to the time for receiving waveform signal,
When the speed of service is less than preset velocity amplitude, when the controller is rolled according to each wheel described in one or more
The waveform signal that piezoresistance sensor is adopted calculates each axletree weight, and the axis heavy phase of each wheel is added, and obtains vehicle weighing
Value.
Further, the controller calculates the speed of service of the vehicle according to the time for receiving waveform signal,
When the speed of service is greater than preset velocity amplitude, when the controller is rolled according to each wheel described in one or more
The waveform signal that quartz transducer is adopted calculates each axletree weight, and the axis heavy phase of each wheel is added, and obtains the title of vehicle
Weight values.
Further, further includes: picture pick-up device；The picture pick-up device connects the controller；The controller of working as receives
The acquisition initial signal sent to the ground induction coil controls the picture pick-up device shooting vehicle pictures, and to the vehicle figure
Piece is handled, and the vehicle model information of the identification information of vehicle, the colouring information of vehicle and vehicle is obtained.
Further, further includes: host computer；The controller believes the weighing value of the vehicle, the mark of the vehicle
The vehicle model information of breath, the colouring information of the vehicle and the vehicle is sent to the host computer.
Further, the controller is NXP LPC4337 chip.
Further, the picture pick-up device is camera gun.
Based on the not parking weighing device that above-mentioned quartz is combined with piezoresistive transducer, the utility model additionally provides one
The dynamic weighting method for vehicle for the not parking weighing device that kind is combined using quartz described above with piezoresistive transducer.
Further, further includes: regulated power supply；The regulated power supply is separately connected the controller and the camera shooting is set
It is standby.
Detailed description of the invention
Fig. 1 is one embodiment figure for the not parking weighing device that the utility model quartz is combined with piezoresistive transducer.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Fig. 1 is the one embodiment for the not parking weighing device that the quartz of the utility model is combined with piezoresistive transducer
Figure.With reference to Fig. 1, a kind of not parking weighing device that quartz is combined with piezoresistive transducer, including weighing platform 10 and controller
20；Weighing platform 10 includes two ground induction coils 102 being laid on lane, at least two rows of quartz transducers 104 and at least two
Group piezoresistance sensor 106；Two ground induction coils 102, at least two rows of quartz transducers 104 and at least two groups piezoresistance sensor 106
It is separately connected controller 20；Two ground induction coils 102 are one in front and one in back respectively arranged on lane, and are respectively used to controller 20
Send acquisition initial signal and acquisition termination signal；Each row's quartz transducer 104 includes two quartz piezoelectric sensors, and every
The length value for arranging two in quartz transducer 104 quartzy piezoelectric transducers, which is added, is equal to lane width value, and is separately positioned on
Left half lane and right half lane；Spacing setting between adjacent two rows quartz transducer 104, and it is set to two ground induction coils 102
Between；At least two groups piezoresistance sensor 106 is separately positioned on left half lane and right half lane, and each group of piezoresistance sensor 106
Including multiple piezoresistance sensors；Line to receiving is felt in the acquisition initial signal that controller 20 receives the transmission of ground induction coil 102
In acquisition termination signal this period that circle 102 is sent, each quartz transducer 104 and each piezoresistance sensor 106 divide
Waveform signal that other collecting vehicle wheel generates when rolling simultaneously is transmitted to controller 20, and controller 20 calculates vehicle according to waveform signal
Weighing value.
Specifically, 102 quantity of ground induction coil be 2, be separately positioned on weighing platform 10 front-end and back-end (wherein with
Subject to the direction of vehicle operation, the position that vehicle drives into weighing platform 10 is denoted as front end, and vehicle is driven out to the position note of weighing platform
For rear end)；Ground induction coil 102 is primarily used to when vehicle drives into 10 region of weighing platform and is driven out to 10 region of weighing platform,
Acquisition initial signal and acquisition termination signal are sent respectively to controller 20, and controller 20 is according to acquisition initial signal instruction quartz
The waveform signal that sensor 104 and 106 collecting vehicle wheel of piezoresistance sensor generate when rolling；And controller 20 terminates letter according to acquisition
Number instruction quartz transducer 104 and piezoresistance sensor 106 stop acquisition signal.
Quartz transducer 104 have piezoelectric effect, i.e., when sensor by mechanical stress act on when will generate and stress at
The charge of direct ratio；In the present embodiment, charge can be generated when wheel of vehicle effect quartz transducer 104, to generate faint
Charge signal, after charge amplifier amplifies, controller 20 can be analyzed waveform signal, to obtain the title of vehicle
Weight values.Due to vehicle generally at least 4 wheels, lane generally also includes left and right two and half lane；Therefore quartz transducer
104 include at least two rows, and each row includes at least two quartz transducers 104 again, and two 104 length value phases of quartz transducer
Add and be equal to lane width value, and two rows of quartz transducers 104 are alternatively arranged, for the spacing model between adjacent two rows of quartz transducers
It encloses for not less than 3 meters；m；When vehicle passes through weighing platform 10, for each wheel, controller 20 was rolled according to the wheel
Waveform signal caused by multiple quartz transducers 104 calculates separately out an original axis weight, and each original axis is asked flat again
Mean value obtains standard axle weight；Furthermore it is possible to will exceed the original of standard axle weight a certain range value (such as can be ± 2.5%)
Axis is rejected again, is averaging again with remaining each original axis weight, is obtained final axis weight；The final axis heavy phase of each wheel is added,
Obtain the weighing value of vehicle.
Piezoresistance sensor 106 will be produced according to Wheatstone bridge principle when piezoresistance sensor 106 is acted on by mechanical stress
The raw potential difference directly proportional to stress；In the present embodiment, voltage can be generated when wheel of vehicle effect piezoresistance sensor 106, from
And waveform signal is formed, controller 20 can analyze waveform signal, to obtain the weighing value of vehicle.Due to vehicle one
As at least 4 wheels, lane generally also includes left and right two and half lane；Therefore piezoresistance sensor 106 includes at least two groups,
It is respectively arranged on left and right two halves lane, each group of piezoresistance sensor 106 includes at least four piezoresistance sensors, each dispersion is set
It sets；If it is 4, usually arranged in square shape；When vehicle passes through weighing platform 10, for each wheel, controller 20
An original axis weight is calculated separately out according to waveform signal caused by multiple piezoresistance sensors 106 that the wheel rolled, and
Each original axis is averaged again, obtains standard axle weight；It (such as can furthermore it is possible to will exceed standard axle weight a certain range value
To be ± 2.5%) original axis reject again, be averaging again with remaining each original axis weight, obtain final axis weight；By each vehicle
The final axis heavy phase of wheel adds, and obtains the weighing value of vehicle.
The not parking weighing device that the quartz of the utility model is combined with piezoresistive transducer includes weighing platform 10 and control
Device 20 processed；Wherein weighing platform includes 10 two ground induction coils 102, at least two rows of quartz transducers 104 being laid on lane
With at least two groups piezoresistance sensor 106, two ground induction coils 102 are respectively used to send acquisition initial signal and acquisition termination signal
To controller, to indicate that quartz transducer 104 and piezoresistance sensor 106 claim when vehicle drives into weighing platform region to leaving
The waveform signal that generates when collecting vehicle wheel rolls in weight land regions this periods is simultaneously transmitted to controller 20,20 basis of controller
The weighing value of waveform signal calculating vehicle.The not parking weighing device that above-mentioned quartz is combined with piezoresistive transducer includes two kinds
The weighing sensor of type, backstage algorithm is according to the waveform signal COMPREHENSIVE CALCULATING of detection, thus the weighing value of the vehicle made
It is more accurate.
Further, further includes: charge amplifier；Charge amplifier is separately connected each quartz transducer；Charge is put
Big device amplifies processing to waveform signal, and treated that waveform signal is sent to controller.
Specifically, the quartz transducer situation weaker there may be signal strength in the waveform signal of acquisition, using charge
Amplifier amplifies processing to the waveform signal of acquisition.Waveform signal can be amplified, be improved using charge amplifier
Signal strength, and then enhance the accuracy of the weighing value of vehicle.
Further, further includes: analog-to-digital conversion module；Analog-to-digital conversion module is for treated, waveform signal to carry out mould
Number conversion generates digital signals, and by data signal transmission to controller.
Specifically, the waveform signal of quartz transducer acquisition is usually analog signal, waveform signal is being transmitted to control
It before device processed, needs to convert digital signal for analog signal, reduces the pressure of signal transmission, to enhance signal transmission
Rate.
Further, controller determines the speed of service of vehicle according to waveform signal, is less than preset speed in the speed of service
When angle value, the waveform signal that one or more piezoresistance sensor is adopted when controller is rolled according to each wheel calculates each vehicle
Wheel shaft weight, and the axis heavy phase of each wheel is added, obtain vehicle weighing value.
Specifically, quartz transducer 104 and piezoresistance sensor 106 may serve to determine the weighing value of vehicle, but usually
In the case of, it is run in vehicle low speed, i.e., when Vehicle Speed is lower, the weighing value for the vehicle that quartz transducer 104 is weighed is not
Accurately；And run in vehicle high-speed, i.e., when Vehicle Speed is higher, the weighing value for the vehicle that piezoresistance sensor 106 is weighed is not
Accurately；Therefore, controller is when determining the weighing value of vehicle according to waveform signal, first according to waveform signal (usually basis
The waveform signals of the acquisition of any one or two in piezoresistance sensor or quartz transducer) determine the speed of service of vehicle, so
The speed of service is compared with preset velocity amplitude afterwards, when the speed of service is less than preset velocity amplitude, controller is according to every
The waveform signal that one or more piezoresistance sensor is adopted when one wheel rolls calculates each axletree weight, and by each wheel
Axis heavy phase add, obtain vehicle weighing value.
In addition, preset velocity amplitude is that user or heavy industry author are pre-set according to demand when weighing, it is a warp
Value is tested, i.e., is obtained by test of many times.Optionally, preset velocity amplitude is 20km/h.Adopting can make to count in manner just described
The weighing value of the vehicle of calculating is more accurate.
Further, controller determines the speed of service of vehicle according to waveform signal, is greater than preset speed in the speed of service
When angle value, the waveform signal that one or more quartz transducer is adopted when controller is rolled according to each wheel calculates each vehicle
Wheel shaft weight, and the axis heavy phase of each wheel is added, obtain the weighing value of vehicle.
When the speed of service is greater than preset velocity amplitude, one or more quartz when controller is rolled according to each wheel
The waveform signal that sensor is adopted calculates each axletree weight, and the axis heavy phase of each wheel is added, and obtains vehicle weighing value.It adopts
The weighing value of calculated vehicle can be made more accurate in manner just described.
Further, as shown in Figure 1, further includes: picture pick-up device 30；Picture pick-up device 30 connects controller 20；Work as controller
20 receive ground induction coil transmission acquisition initial signal, control picture pick-up device 30 shoot vehicle pictures, and to vehicle pictures into
Row processing, obtains the vehicle model information of the identification information of vehicle, the colouring information of vehicle and vehicle.
Specifically, picture pick-up device 30 is used to shoot vehicle pictures when vehicle drives into weighing platform 10 and sends out vehicle pictures
It send to controller 20, controller 20 is analyzed and processed vehicle pictures, obtains the identification information of vehicle, the colouring information of vehicle
And the vehicle model information of vehicle；The identification information of vehicle is the information that can uniquely determine or identify vehicle, usually the vehicle of vehicle
Trade mark code is also possible to other information, can mainly uniquely determine vehicle.
Further, as shown in Figure 1, further includes: host computer 40；Controller is by the weighing value of 20 vehicles, the mark of vehicle
The vehicle model information of information, the colouring information of vehicle and vehicle is sent to host computer.
Host computer 40 is for storing the weighing value of vehicle, the identification information of vehicle, the colouring information of vehicle and vehicle
Vehicle model information, the wherein weighing information of the identification information of vehicle and vehicle, the colouring information of vehicle and the vehicle model information of vehicle
It corresponds.Above- mentioned information are stored using host computer 40, the later period is facilitated to carry out information inquiry.
Further, controller is NXP LPC4337 chip.
Specifically, NXP LPC4337 chip is the most basic circuit of onboard MCU, including crystal oscillating circuit, USB power source management
Circuit, USB interface etc.；All I/O resources can have been drawn；Band JTAG/SWD debugging download interface arrange needle spacing 2.0mm, volume compared with
It is small, it is suitble to accessing user's system.
Further, picture pick-up device is camera gun.
Specifically, camera gun is a kind of common picture pick-up device, and use is very simple, as long as usually correctly installing mirror
Head, communications signals cable, powering on can work.
Further, further includes: regulated power supply 50；Regulated power supply is separately connected controller 20 and picture pick-up device 30.Using
Regulated power supply can guarantee power supply stability, avoid damaging controller 20 and picture pick-up device 30 because of spread of voltage.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express the several embodiments of the application, and the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to utility model patent range.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of not parking weighing device that quartz is combined with piezoresistive transducer, which is characterized in that including weighing platform and control
Device processed；The weighing platform includes two ground induction coils being laid on lane, at least two rows of quartz transducers and at least two groups
Piezoresistance sensor；Two ground induction coils, at least two rows of quartz transducers and at least two groups piezoresistance sensor are separately connected the control
Device processed；Two ground induction coils are one in front and one in back respectively arranged on lane, and are respectively used to send to the controller and be acquired
Initial signal and acquisition termination signal；
Quartz transducer described in each row includes two quartz piezoelectric sensors, and two quartz pressures in every row's quartz transducer
The length value of electric transducer, which is added, is equal to lane width value, and is separately positioned on left half lane and right half lane；Adjacent two rows institute
It states spacing between quartz transducer to be arranged, and is set between two ground induction coils；
Piezoresistance sensor described at least two groups is separately positioned on left half lane and right half lane, and piezoresistance sensor described in each group
Including multiple piezoresistance sensors；
Receive acquisition initial signal that the ground induction coil is sent to the acquisition for receiving the ground induction coil transmission in controller
In termination signal this period, collecting vehicle wheel rolls each described quartz transducer respectively with each described piezoresistance sensor
When the waveform signal that generates and be transmitted to the controller, the controller calculates the weighing of vehicle according to the waveform signal
Value.
2. the not parking weighing device that quartz according to claim 1 is combined with piezoresistive transducer, which is characterized in that also
It include: charge amplifier；The charge amplifier is separately connected each described quartz transducer and the controller；
The charge amplifier amplifies processing to the waveform signal, and treated that waveform signal is sent to the control
Device.
3. the not parking weighing device that quartz according to claim 2 is combined with piezoresistive transducer, which is characterized in that also
It include: analog-to-digital conversion module；
The analog-to-digital conversion module is used to carry out treated waveform signal analog-to-digital conversion and generates digital signal, and by the number
It is believed that number being transmitted to the controller.
4. the not parking weighing device that quartz according to claim 1-3 is combined with piezoresistive transducer, special
Sign is that the controller calculates the speed of service of the vehicle according to the waveform signal, is less than in the speed of service pre-
If velocity amplitude when, one or more piezoresistance sensors are adopted when the controller is rolled according to each wheel waveform letter
Number each axletree weight is calculated, and the axis heavy phase of each wheel is added, obtains vehicle weighing value.
5. the not parking weighing device that quartz according to claim 1-3 is combined with piezoresistive transducer, special
Sign is that the controller calculates the speed of service of the vehicle according to the waveform signal, is greater than in the speed of service pre-
If velocity amplitude when, one or more quartz transducers are adopted when the controller is rolled according to each wheel waveform letter
Number each axletree weight is calculated, and the axis heavy phase of each wheel is added, obtains the weighing value of vehicle.
6. the not parking weighing device that quartz according to claim 5 is combined with piezoresistive transducer, which is characterized in that also
It include: picture pick-up device；The picture pick-up device connects the controller；
It is described that the acquisition initial signal that the ground induction coil is sent is received when controller, control the picture pick-up device shooting vehicle
Picture, and the vehicle pictures are handled, obtain the vehicle of the identification information of vehicle, the colouring information of vehicle and vehicle
Information.
7. the not parking weighing device that quartz according to claim 6 is combined with piezoresistive transducer, which is characterized in that also
It include: host computer；The controller believes the color of the weighing value of the vehicle, the identification information of the vehicle, the vehicle
The vehicle model information of breath and the vehicle is sent to the host computer.
8. the not parking weighing device that quartz according to claim 7 is combined with piezoresistive transducer, which is characterized in that institute
Stating controller is NXP LPC4337 chip.
9. special according to the not parking weighing device that the described in any item quartz of claim 6-7 are combined with piezoresistive transducer
Sign is that the picture pick-up device is camera gun.
10. the not parking weighing device that quartz according to claim 9 is combined with piezoresistive transducer, which is characterized in that
Further include: regulated power supply；The regulated power supply is separately connected the controller and the picture pick-up device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821822350.6U CN208907832U (en) | 2018-11-05 | 2018-11-05 | A kind of not parking weighing device that quartz is combined with piezoresistive transducer |
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| CN201821822350.6U CN208907832U (en) | 2018-11-05 | 2018-11-05 | A kind of not parking weighing device that quartz is combined with piezoresistive transducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238420A (en) * | 2018-11-05 | 2019-01-18 | 广州普勒仕交通科技有限公司 | The not parking weighing detection device and method that quartz is combined with piezoresistive transducer |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238420A (en) * | 2018-11-05 | 2019-01-18 | 广州普勒仕交通科技有限公司 | The not parking weighing detection device and method that quartz is combined with piezoresistive transducer |
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