CN203433365U - A novel vehicle with an optical device - Google Patents
A novel vehicle with an optical device Download PDFInfo
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- CN203433365U CN203433365U CN201320544836.9U CN201320544836U CN203433365U CN 203433365 U CN203433365 U CN 203433365U CN 201320544836 U CN201320544836 U CN 201320544836U CN 203433365 U CN203433365 U CN 203433365U
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- camera lens
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Abstract
The utility model provides a novel vehicle with an optical device. The vehicle comprises a vehicle framework, an optical device, an ambient environment temperature sensor, a lens temperature sensor, a humidity sensor, an air exhausting device, a heater, and a blower fan. The optical device is installed on the vehicle framework and comprises a lens. The ambient environment temperature sensor senses the temperature of air around the vehicle. The lens temperature sensor senses the temperature of the lens. The humidity sensor senses the humidity of air near the lens. The lens temperature sensor exhausts air to the lens according to the environment temperature sensed by the ambient environment temperature sensor, the lens temperature sensed by the lens temperature sensor, and the air humidity sensed by the humidity sensor. The heater heats the air exhausted by the air exhausting device and decreases the value of the humidity of the air exhausted by the air exhausting device to a value below that of the humidity sensed by the humidity sensor. The blower fan separates the air exhausted by the air exhausting device from the air exhausting device.
Description
Technical field
The utility model relates to a kind of vehicles, particularly relates to a kind of new vehicle with optical device.
Background technology
Optical device refers at material transport vehicle for example in automatic guided vehicle (AGV), is used for the equipment that makes vehicle keep the path of regulation to travel.And optical device can help to identify goods and guarantee that material transport vehicle carries and transport correct goods.
This type of optical device, as optical guidance system, is often subject to the restriction of atmosphere and air quality condition.Camera lens is as a part for optical device, and operation may should have effect because condensing of accumulation hidden or play up not have with dust under certain conditions.For example, the optical guidance system being arranged on AGV is used the light beam of directional light to receive reflection from specific known reflectors, to determine that vehicle is with respect to the position of reverberator.Similarly, being arranged on barcode scanner on vehicle reads the bar code for the treatment of on shipment and betransported to guarantee correct goods by light.Dust on optical device camera lens, dirt or the accumulation of condensing can be shortened the distance that reverberator can sense or cause bar code to be misread.Vehicle usually can cause the phenomenon of condensing in the environment that moves into and shift out different temperature and humidities time, and this can cause optical device not use, or function significantly declines.
Generally, optical device camera lens or clean according to schedule, or just can clean while only having it not use.And these solutions all cannot provide for the use of material transport vehicle one effectively and cost-saving method.For example, at predetermined scavenging period or when optical device, become can not use time, vehicle can not normal running, until camera lens is cleaned.Except the needed cost of cleaning course, cleaning course must cause the yield-power of vehicle down period to decline.Therefore, need to there is a system, be used for preventing that dust, dirt particle from accumulating on the camera lens of scanner and visual apparatus, and without stop time of vehicle.In addition, can allow vehicle when moving into and shifting out different temperatures and humidity region, scanner and visual apparatus can normally be used.
Utility model content
The purpose of this utility model is to provide a kind of new vehicle with optical device.This vehicle comprises vehicle frame and is arranged on the optical device on vehicle frame.This vehicle fitting also comprises ambient temperature sensor, is used for senses vehicle framework ambient air temperature, and camera lens temperature sensor is used for the temperature of sensing optical device camera lens, and humidity sensor, is used for the humidity of sensing camera lens surrounding air.In addition, this device also comprises exhaust apparatus, the ambient air temperature sensing according to sensor, and camera lens temperature and camera lens surrounding air humidity are to camera lens emission gases.
The purpose of this utility model is to eliminate and prevents optical device camera lens surface moisture contamination.The utility model passes through temperature, the humidity of camera lens surrounding air and the temperature of camera lens of sensing surrounding air, and from exhaust apparatus Exhaust Gas, removes the moisture contamination thing camera lens according to sense data.
Accompanying drawing explanation
To describe in detail below above-mentioned purpose of the present utility model with and other objects and advantages.With reference to accompanying drawing, will make better explaination for the utility model.
Fig. 1 is according to the optical device of the utility model drafting and the summary construction diagram of lens cleaner.
Fig. 2 is a kind of embodiment illustration of lens cleaner in Fig. 1.
Fig. 3 is the another embodiment illustration of lens cleaner in Fig. 1.
Fig. 4 removes the operation example process flow diagram of camera lens surface contaminants according to the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, to the utlity model has the realization of the new vehicle of optical device, be further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, on the framework 16 of vehicle 18, the optical device 10 that comprises a camera lens 12 is housed.The camera lens 12 of optical device 10, for example scanner or camera, can be cleaned by lens cleaner 20, and lens cleaner comprises camera lens temperature sensor 14, ambient temperature sensor 22, humidity sensor 24, well heater 26, fan blower 28, exhaust apparatus 30, and microcontroller or processor 32.Picture AGV or other industrial vehicle, vehicle 18 can, easily causing assembling moisture on camera lens 12, work in the environment of dust or other air particles.Lens cleaner 20 can be used for preventing from condensing, and dust or other particle aggregation are on camera lens 12, and optical device 10 can obtain the picture rich in detail not being blocked by camera lens 12 when image acquisition and/or scanning like this.More particularly, lens cleaner 20 can be continuously or near temperature and/or humidity monitoring camera 12 periodically, and regulate air-flow and spray to camera lens 12 to remove existing and potential accumulation.Therefore, lens cleaner 20 can improve the availability of vehicle by maintenance interval still less, cut operating costs.
Camera lens temperature sensor 14 can be thermoelectricity other temperature-sensing devices occasionally as known in the art, and it is arranged on camera lens 12 sides, is used for a part of actual temperature of sensing camera lens, for example hull-skin temperature of camera lens 12.Or, within not departing from scope of the present utility model, installation of sensors can be used near camera lens 12 to sensing camera lens ambient air temperature.
The position of environment temperature sensor 22 is away from camera lens temperature sensor 14, is used for the temperature of air of senses vehicle 18 peripheries.Environment temperature sensor 22 is preferably arranged on the place away from any thermal source on vehicle 18 and has influence on the sensing of environment temperature sensor 22 to prevent heat source temperature.Follow shot temperature sensor 14 is the same, and environment temperature sensor 22 can be also thermoelectricity other temperature sensing devices occasionally as known in the art.
Humidity sensor 24, can be an electronic moisture meter, is used for sensing camera lens 12 ambient air humidity.Humidity sensor 24 is preferably arranged near camera lens 12, within being no more than the scope of a foot, so that near accurate moisture measurement data camera lens 12 to be provided.Yet within not departing from scope of the present utility model, humidity sensor 24 is arranged on vehicle 18 Anywhere, can sense near the humidity in surrounding air camera lens 12.
The gas that well heater 26 heating are discharged by exhaust apparatus 30.Well heater 26 can be any one assembly on vehicle 18, and this assembly produces and is discharged into airborne heat by exhaust apparatus 30.Well heater 26 is a kind of electric resistance heater preferably, and is arranged among the exhaust pathway before gas arrival exhausr port.
Microcontroller 32 can receive and analyze from camera lens temperature sensor 14, environment temperature sensor 22, the signal of humidity sensor 24 (for example, by signal amplifier 34 and one or more analog-digital converter 36), and can transmission of control signals to well heater 26 and fan blower 28 (for example,, by signal amplifier 38).According to from camera lens temperature sensor 14, environment temperature sensor 22, and the signal that obtains of humidity sensor 24, microcontroller 32 can be determined speed air flow and/or regulate by the relative demand of camera lens 12.Then, microcontroller 32 can control one of fan blower 28 discharge constant or periodically air-flow by exhaust apparatus 30 and cross camera lens 12 outside surfaces 40.Microcontroller 32 also can control heater 26 so that heating and be reduced in the humidity that fan blower 28 impels the lower air by exhaust apparatus 30, thereby prevent the moisture contamination on camera lens surface 40.
In first embodiment, fan blower 28 is one can provide the blower fan that can pass the steady air flow of camera lens 12.Stable air-flow, can prevent the accumulation of dust granule on camera lens 12, thereby has reduced or eliminated the cleaning procedure frequently of need of work under the environment of many dirt.In this embodiment, fan blower 28 operates to reach at any time constant air-flow with constant speed.For example, can constant speed air flow of pre-programmed, the dust granules of the particular type occurring with the operating position adapting at vehicle 18.In another embodiment, fan blower 28 is the blower fans that can be set to different speed, and every kind of speed can cause the gas of different flow to pass through exhaust apparatus.For example, at lens cleaner 20, a sensor (not shown) being connected with microcontroller 32 can be comprised, the amount of sensing Returning beam by camera lens 12 under given state can be used for.Then microcontroller 32 can make fan blower 28 according to the level of the light of institute's sensing or high or low speed under operate, to maintain by the observability of camera lens 12, no matter the suspended particle in surrounding environment is mostly to be to lack.
In another embodiment, the air-flow of fan blower 28 can be discharged into around camera lens 12 by pulse mode.Air pulse is compared to stable air-flow, though more air-pollutings place or suspended particle than the heavier or moister environment of general dust granules in, also can help to make the light beam returning can pass camera lens.For example, if camera lens 12 is applied to a constant air stream, any particle in air stream by momentum have shown in following expression:
M=(m*v
2)／2
M represents momentum, and m represents granular mass, and v represents particle speed
Gas flow can apply a thrust F to each particle, depends on equally particle speed and quality in air-flow.The momentum of the power of γ-ray emission and particle itself will be that particle persistent movement can't rest on the surface 40 of camera lens.
For example, when air-flow stop motion (, vehicle 18 does not move, and fan blower 28 is closed), due to the Air Flow of vehicle 18 surrounding normals, dust granule may be accumulated on camera lens surface 40.Once contact lense head surface 40, particle may be due to the cohesive of intermolecular force, static or particle itself, and adheres on camera lens surface 40 than being easier to.In this case, constant air-flow possibly cannot apply enough power and forces in suspended particle Returning flow.But the power that air pulse applies can make particle ratio be easier to depart from camera lens surface 40.More specifically, when air-flow blows to camera lens surface 40, the power acting on contaminant particle can increase.The power of supposing to act on particle is F, F=m*a, and wherein F is power, and m is the quality of fluid, and a is acceleration.
If air pulse will be 0 at the speed V1 of very first time T1, at the speed V2 of the second time T 2, will be higher value.The pulse energy that particle is applied, by the impact being subject to by gas flow rates from V1 to V2.If speed changes into acceleration, F=m* (dv)/(dt) in the time.Therefore, for example, if power F is pulse and the time interval from 0 to power F being 0.01 second, the instantaneous variation of air pulse power is 100 times of constant gas power so.Although mean force is identical, higher to dust granules pulse energy in short-term.
The environment that is relatively applicable to air pulse may have: tire manufacturing equipment, and dust wherein may comprise a small amount of rubber and coal smoke; Food processing region, wherein animal is slaughtered and clean, and dust may comprise the little water droplet spittle.In order to create air pulse, microcontroller 32 can transmission pulse width modulated control signal to fan blower 28.In certain embodiments, according to the size of dust or coal soot and the fusible difference on camera lens surface 40 thereof, can set the pulse of specific frequency and/or pulse-response amplitude to obtain the higher pulse energy of air-flow.
In certain embodiments, if can monitor vehicle 18 quits work, and operator knows in advance or the type of inputting pollutant (for example, dust, coal smoke, condense etc.), microcontroller 32 can be analyzed these conditions and/or other condition sensing so, and the variable gas velocity of control fan blower 28 and pulse are with clean lens 12.In addition, in other embodiments, well heater 26 can be worked together with fan blower 28.Consequently, microcontroller 32 can operate fan blower 28 and well heater 26 under the compound condition of variable gas velocity, pulse and variable temperature, to help clean lens 12.
For example, Fig. 4 is a process flow diagram, and the course of work that simultaneously operates fan blower 28 and well heater 26 is shown.In step 44, microcontroller 32, by the sensing of temperature sensor 22 or the input of data block 46, can be determined camera lens 12 temperature or near the temperature of vehicle 18 around.In step 48, microcontroller 32 can be determined by near the air humidity camera lens 12 of humidity sensor 24 sensings from input block 50.In step 52, the temperature and humidity of microcontroller 32 based on sensing calculates set point, for example, uses formula below:
Td
c=T
c-((100-RH)／5)
Wherein, Td
cset point temperature, T
cfor ambient temperature, RH is relative humidity.Unit is degree Celsius
Td
f=T
f-((100-RH)／2.778)
Wherein, Td
ffahrenheit dewpoint temperature, T
fbe Fahrenheit temperature environment temperature, RH is relative humidity.Unit is degrees Fahrenheit
In step 54, microcontroller 32 can be determined by the sensing of camera lens temperature sensor 14 and the input of data block 56 Current Temperatures of camera lens 12.In step 58, microcontroller 32 can compare under the Current Temperatures of set point temperature and camera lens 12.If set point temperature is higher than the current temperature of camera lens 12, microcontroller 32 reanalyses environment temperature definite in step 44.If set point temperature is for example, less than or equal to current temperature (, the camera lens 12 that some condition causes condense), microcontroller 32 pictures control heater 26 and fan blower 28 in step 60.Fan blower 28 can be directly in 40 exhaust jet streams of camera lens surface, and well heater 26 can be air-flow heating and the dehumidifying by fan blower 28, thereby the humidity of institute's discharged air is reduced to below the humidity of humidity sensor sensing.
As mentioned above, in constant gas speed, variable gas velocity, and/or under the condition of air pulse speed, fan blower 28 can continue or periodical operation, and whether pipe heater 26 does not regulate air themperature.The operation of fan blower 28 and/or well heater 26 can prevent gathering of on camera lens surface 40 dust granule, (for example can remove the dust granule that gathers on camera lens surface 40, when vehicle 18 is in closed condition or free time), and can prevent when vehicle 18 phenomenon of condensing on camera lens surface 40 that movement may cause under varying environment.
Finally it should be noted that obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification.
Claims (1)
1. a new vehicle (18) with optical device, is characterized in that, comprising:
Vehicle frame (16);
Optical device (10), it is arranged on described vehicle frame (16) above and has camera lens (12);
Ambient temperature sensor (22), its senses vehicle ambient air temperature;
Camera lens temperature sensor (14), the temperature of camera lens described in its sensing;
Humidity sensor (24), its sensing is near the air humidity of described camera lens;
Exhaust apparatus (30), it is according to the environment temperature of described ambient temperature sensor sensing, and the camera lens temperature of described camera lens temperature sensor senses and the air humidity of described humidity sensor sensing are to described camera lens emission gases;
Well heater (26), it heats the described gas of described exhaust apparatus discharge and the humidity in the described gas of described exhaust apparatus discharge is reduced to below the humidity of described humidity sensor sensing;
Fan blower (28), it impels the gas being discharged by described exhaust apparatus to leave described exhaust apparatus;
Microcontroller (32), its described ambient air temperature based on described ambient temperature sensor sensing, the described temperature of the described camera lens of described camera lens temperature sensor senses, and the described humidity of described humidity sensor sensing calculates the air set point near described camera lens, wherein said exhaust apparatus (30) is to the gas of described camera lens (12) discharge air pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544836.9U CN203433365U (en) | 2013-09-03 | 2013-09-03 | A novel vehicle with an optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544836.9U CN203433365U (en) | 2013-09-03 | 2013-09-03 | A novel vehicle with an optical device |
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| Publication Number | Publication Date |
|---|---|
| CN203433365U true CN203433365U (en) | 2014-02-12 |
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ID=50062392
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320544836.9U Expired - Fee Related CN203433365U (en) | 2013-09-03 | 2013-09-03 | A novel vehicle with an optical device |
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| Country | Link |
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| CN (1) | CN203433365U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210709A (en) * | 2016-07-11 | 2016-12-07 | 北京小米移动软件有限公司 | Information prompting method and device |
| WO2019029758A1 (en) * | 2017-08-09 | 2019-02-14 | Grenzebach Maschinenbau Gmbh | Device and method for maintaining the capability for precise navigation of an automated guided vehicle |
| CN110167688A (en) * | 2016-11-17 | 2019-08-23 | 法雷奥系统公司 | For protecting the protective device and relevant driver assistance system and clean method of optical sensor |
| CN110414091A (en) * | 2019-08-30 | 2019-11-05 | 诺力智能装备股份有限公司 | A kind of AGV vehicle laser scanner dust-extraction unit and its pod design method |
| CN112222035A (en) * | 2020-11-09 | 2021-01-15 | 青岛力韩数码科技有限公司 | Automatic dust removal cleaning device for photographic lens |
-
2013
- 2013-09-03 CN CN201320544836.9U patent/CN203433365U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210709A (en) * | 2016-07-11 | 2016-12-07 | 北京小米移动软件有限公司 | Information prompting method and device |
| CN106210709B (en) * | 2016-07-11 | 2019-08-06 | 北京小米移动软件有限公司 | Information prompting method and device |
| CN110167688A (en) * | 2016-11-17 | 2019-08-23 | 法雷奥系统公司 | For protecting the protective device and relevant driver assistance system and clean method of optical sensor |
| CN110167688B (en) * | 2016-11-17 | 2022-05-03 | 法雷奥系统公司 | Protective device for protecting an optical sensor, and associated driver assistance system and cleaning method |
| WO2019029758A1 (en) * | 2017-08-09 | 2019-02-14 | Grenzebach Maschinenbau Gmbh | Device and method for maintaining the capability for precise navigation of an automated guided vehicle |
| US11738721B2 (en) | 2017-08-09 | 2023-08-29 | Grenzebach Maschinenbau Gmbh | Device and method for maintaining the capability for precise navigation of an automated guided vehicle |
| CN110414091A (en) * | 2019-08-30 | 2019-11-05 | 诺力智能装备股份有限公司 | A kind of AGV vehicle laser scanner dust-extraction unit and its pod design method |
| CN112222035A (en) * | 2020-11-09 | 2021-01-15 | 青岛力韩数码科技有限公司 | Automatic dust removal cleaning device for photographic lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20150903 |
|
| EXPY | Termination of patent right or utility model |