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      DE-LIDAR TF01

      DE-LIDAR TF01

      SKU 114990991
      $119.00$169.00
      OUT OF STOCK
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      Description

      画板 1 副本 23-100.jpg

      DE-LIDAR TF01 is based on ToF (Time of Flight) principle, with unique characteristic of optics, electronics, and design. It can also achieve stable, accurate, high-sensitivity and high-speed distance measurement.

      Key FeaturesSensitivityHigh
      Detection range10m max(@90% Reflection )
      Detection frequency500Hz
      Anti – ambient lightFunction under 100k Lux ambient light
      ShapeExquisite size,light weight(< 50 g)
      AccuracyCentimeter-level(1% Relative error)
      Applications

      UAV(drones) floating at fix height

      Terrain Followin

      Machine control, security sensor
      Distance measurement

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      Picture below is reference design,the size is 51mm*36mm*48mm.

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      1: Shell    2:Assembly hole    3:Wire

      DELiDAR TF01 Mechanical Dimensions(reference design)

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      DELiDAR TF01 contour dimension(unit:mm)

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      Time of Flight (ToF) is a distance measurement method. The modulated near-infrared light emitted from sensor is reflected by the object. By calculating the time difference or phase difference between emission and reflection, the distance from the object can be deduced and so does the depth information.

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      ParameterSymbolTyp.Unit
      Supply voltageDC7.4-12(±5%)V
      Power ConsumptionP≤1W
      LED peak currentImax200mA
      TTLV­­TTL0~3.3V

      画板 1 副本 27-100.jpg

      ParameterSymbolConditions/CommentsTyp.Unit
      Operating rangeL100Klux ambient light @90% Reflection30-1000cm
      Emitting half-angleαCustomizable1Degree

      Receiving half-angl

      βCustomizable1Degree
      DetectionDeMinimum detectable object size @ 5m4 - 6cm
      ResolutionReSensitivity to distance change0.5cm
      Operating temperatureT
      -10~60︒C
      Peak Wavelengthλ
      850nm

      Test conditions: stable working for 8 hours.

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      Table below is protocol for DELiDAR TF01

      ProtocolUART
      Baud rate115200
      Data bit8
      Checksum bit1

      Data is output in hexadecrimal format, 9 bytes per frame,including one distant info,called “Dist”;Every “Dist” has a seriel number info to it,called Sequence;Frame end bit is checksum bit.

      Byte1 - 2Byte3Byte4Byte5Byte6Byte7Byte8 Byte9
      0x59 59Dist_LDist_HStrength_LStrength_HSequence_LSequence_HCheckSum_L
      Data coding information
      Byte10x59,frame head,same in every frame
      Byte20x59,frame head,same in every frame
      Byte3

      Dist_L distance value lower eight bit   

      Distance is shown by HEX,eg.1000cm=03 E8 (HEX)
      Byte4Dist_H distance value upper eight bit
      Byte5

      Strength_L Lower eight bit     

      Strength stands for signal quality, scale 0-2000,indoor<3 reject, outdoor<10 reject
      Byte6Strength_H Uppereight bit 
      Byte7

      Sequence _L Serial number lower eight bit

      Sequence scale vary from 00 00 to FF FF,stands for 0 to 65535,to mark the continuity of the data

      Byte8Sequence _H Serial number upper eight bit
      Byte9Checksum check lower eight bit,Checksum = Byte1 + Byte2 + ... + Byte8,Checksum is the sum of the former eight bit,we only send the lower eight bit.

      画板 1 副本 29-100.jpg

      StrengthCorrection Dist standard deviation/cm
      >110< 0.7
      80 – 1000.7 – 1.1
      50 – 801.1 – 2
      20 – 502 – 5
      < 20>5

      blob.png

      correction dist standard deviation-strength curve

      画板 1 副本 30-100.jpg


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      Technical requirement:

      1. Connect model Molex 43025-0400

      2. Cable should be 4 core shielded RVV wire, inner core diameter 0.2

      画板 1 副本 31-100.jpg

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      Windows TF-Module Data Display Program UI

      ① “Start” button, press the button to record TF-01 HEX data, the data will be saved in the same directory with the GUI;

      ② “Display Range”, click 5m or 20m to switch display scale between 5m and 20m;

      ③ “Data Amount for Distance”, Data amount to get an average distance(DAGAD)

      ④ Device command input area, input HEX command in this window and press Enter to send, to change functions or setting;

      ⑤ Scale to display the real-time measurement;

      ⑥ Area to display average distance-number of measurements;

      ⑦ the amount of the data rejected.

      ⑧ Data Detail area:Dist stands for distance,unit cm;Effective Point stands for data quantity of TF-01 output;Strength stands for signal strength.

      画板 1 副本 32-100.jpg

      (1)What is the spread of the laser beam?

      At very close distance (<0.5m), the beam diameter is about the size of the aperture of the lens. For distance larger than 0.5m, the beam diameter can be estimated using the following equation:

      distance / 20 = beam diameter at the this distance

      The actual spread is ~52 milli-radians or ~3 degree.

      (2)How do distance, target size, aspect, and reflectivity affect returned signal strength?

      The device transmits a focused IR beam that reflects off a target, among which a portion of which returns to the receiver. The distance between the device and the target is determined by the difference between the moment of signal transmission to the moment of signal reception. The effective reception of a reflected signal is influenced by, but not limited to, the following factors:

      • Target distance

        Returned signal strength ~ 1/D2

        D: distance

      • Target size

        Returned signal strength ~ 1/C4

        C: cross section of a target

      • Aspect

        The orientation of the target to the sensor influences the observable cross section. 

      • Reflectivity

        The reflective characteristics of the surface of the target influence the amount of returned signal.

      Generally, it is difficult to detect a small target, especially when it is distant, poorly reflective, and its aspect is away from the normal. Nevertheless, the returned signal strength can be improved by attaching an IR reflector to the target, enlarging the size of the target, modifying its orientation, or reducing its distance from the sensor.

      (3)How does the device work with different reflective surfaces?

      Generally speaking, the reflective characteristics of the surface of an object can be dedvided into threee categories: diffuse reflective, specular and retro-reflective.

      • Diffuse reflective surface

        For surfaces of materials like paper, matte walls and granite, their textured quality results in the uniform dispersion of reflected energy. Therefore the reflected energy of the dispersed laser is relaatively predictable in percentage. As a result, these materials can be read very well.

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      • Specular surface

        For specular surfaces, only a small amout or even none of the reflected light reaaches the receiver, depending on the smoothness of the surface and the observation angle. The suggestion is to view the object from the normal.

      画板 1 副本 33-100.jpg

       

      • Any technical problems please contact us since it is customized optical instrument with high precision.

      • Operating temperature:-10-60℃,storage temperature:0-70℃

      • The operating environment must be kept clean. Prevent dust or other stuff from getting into the lens.

      • Keep away from high temperature and high humidity environment for storage, transportation or operation.

      • Keep away from acid or strong sulfur environment.


      Download Resource

      Technical Details

      WeightG.W 58.5g    
      BatteryExclude

      Part List

      DE-LIDAR TF011

      Reviews

      Questions and Answers

      SUBMIT
      2
      Where I can find the Linux or Android driver for this LiDAR? The official Web-site (http://www.benewake.com/Download_e.html) provides the driver only for TE01 and it is not opensource.
      on Jan 07,2017
      Replyupvote ()
      it looks(from above) to be just serial comms. no driver reqd. maybe the driver is for some other mode of comms...
      on Jan 07,2017 06:55 AM
      Replyupvote ()
      I checked their website. They have a program using this LiDAR. And they also provide serial and CAN protocol so that we can input the data via any program. I tested it on Matlab and Mathematica. Looks Great!
      on Jan 18,2017 05:31 AM
      Replyupvote ()
      Reply
      0
      Why is this called a LiDAR? Looks more like an accurate range finder. I could turn it into a LiDAR with servo scanning?
      on Jan 07,2017
      Replyupvote ()
      Lidar means "Light Detection and Ranging" but is generally used by devices using a TOF mechanism. This indicates it is TOF. So the term Lidar seems legit IMHO.You might mean Lidar scanner. which is what you'd have to make with this and a servo or rotating mirror assembly (faster, more stable)I too wanted a lidar scanner. This device has update rate of 500Hz which is probably its maximum sampling rate. Therefore work out how far you can rotate it and sample at 500Hz to get the field you want to scan.500Hz (500 samples per second) isnt bad.It also has a maxobject detect of 4cm at 5m and range is 30cm to 10m.So it looks like it might make a low res low speed scanning lidar but frankly its hard to tell. The question is - is it worth the gamble for the money ? Its your money...
      on Jan 07,2017 07:02 AM
      Replyupvote ()
      Reply
      0
      How long does it take to take a measurement?
      on Jan 06,2017
      Replyupvote ()
      sample rate indicated at 500Hz or 500 samples per second. I presume this is a max rate.
      on Jan 07,2017 07:04 AM
      Replyupvote ()
      Reply

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        DE-LIDAR TF01

        SKU 114990991
        $119.00$169.00
        OUT OF STOCK
        This item is not available at the moment
        Get notified when it's back in stock
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        • Description
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        • Reviews
        • Questions and Answers
        • View History
        Notify me when it's back in stock
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