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ESPROS epc610 Manual

Camera module v1.0 time-of-flight camera epc610, 8x8 pixel
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General Description

The epc610 Camera Module V1.0 is a fully assembled and tested
3D TOF camera for the evaluation of the epc610 Time of Flight
(TOF) product.
The module includes an epc610 TOF Imager chip, an active IR
LED illumination for the observation area, a complete lens system
and has a cable interface to the mainboard, allowing a flexible and
convenient placement in a lab setup. The module has a 8.7° x 8.7°
optical aperture angle.
In combination with the epc600/610 Evaluation Kit, which provides
all hardware to operate the epc610 Camera Module V1.0, the user
has a fully functional TOF imager evaluation system.
The included comprehensive application software enables the user
to explore the 3D TOF technology as well the epc610 imager chip.

Overview

Figure 1: The epc610 Camera Module V1.0
Figure 3: Field of view of the camera
Receiver spot:
153 x 153 mm (8.7° x 8.7°)
Emitter spot:
353mm diameter ≙ □ 250 x 250mm
© 2014 ESPROS Photonics Corporation
Characteristics subject to change without notice
Manual – epc610 Camera Module V1.0
Time-of-flight camera epc610, 8x8 pixel

Features

■ Fully functional TOF camera with 8x8 pixel epc610 Imager chip.
■ Comprehensive application software with graphical user interface
to operate the epc610 chip inside the camera.
■ Automatic mode with adaptive integration times.
■ Manual mode to run the camera in individual set-up or to analyze
raw data.
■ Possibility to store and reload operating configurations.
■ Functionality for logging measurement data on PC.

Purpose

■ Performance demonstration of the epc610 chip in terms of
speed, operating range and accuracy.
■ Demonstration and evaluation hard- and software.
■ Development system for user's own epc610 chip application.
Figure 2: The main dialog of the graphical user interface
with 3D data representation
Figure 4: Illumination spot size
1 / 26
153mm
19.1mm
and pixel field in the object area
Manual epc610_Camera - V1.5
www.espros.ch

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Summary of Contents for ESPROS epc610

  • Page 1: General Description

    The epc610 Camera Module V1.0 is a fully assembled and tested ■ Fully functional TOF camera with 8x8 pixel epc610 Imager chip. 3D TOF camera for the evaluation of the epc610 Time of Flight ■ Comprehensive application software with graphical user interface (TOF) product.
  • Page 2 DARDS IN ORDER TO ENSURE SAFE OPERATION OF THE WHOLE APPLICATION. ANY ALTERATION TO THE DEVICES BY THE BUYER, INSTALLER OR USER MAY RESULT IN UNSAFE OPERATING CONDITIONS. ESPROS photonics AG IS NOT RESPONSIBLE FOR ANY LIABILITY OR WARRANTY CLAIM WHICH RESULTS FROM SUCH MANIP - ULATION.

  • Page 3: Table Of Contents

    4.1.1. SW installation on PC..................................11 4.1.2. SW installation on Mac..................................12 4.2. Running the epc610 application ................................12 5. Software “epc610 evaluation system” and user interface ........................14 5.1. Overview......................................14 5.1.1. User Interface Overview................................... 14 5.1.2. Basic operation....................................15 5.1.3.

  • Page 4: General Overview Of The Epc600/610 Evaluation Kit

    Evaluation kit set with an epc600 TOF Range Finder chip – epc600 Camera Spot – epc600/610 Evaluation Kit Mainboard P100 227 epc610 Evaluation Kit Evaluation kit set with an epc610 TOF Imager chip – epc610 Camera Module V1.0 – epc600/610 Evaluation Kit Mainboard Part number Order information...

  • Page 5: System Requirements For Host Computer

    Table 2: System requirements for the host computer 1.4. System requirements for the Evaluation Kit mainboard The epc610 Camera Module 1.0 works in combination with the following Evaluation Kit mainboards: ■ epc600/610 Evaluation Kit mainboard V1.2 or higher ■ Evaluation Kit mainboard V2.0 or higher 1.5.

  • Page 6: Hardware

    2. Hardware The purpose of this section is to introduce to the user the epc610 camera module and the functional use of the epc600/610 Evaluation Kit. 2.1. Block diagram The system consists of 3 main parts: A personal computer, the Evaluation Kit mainboard and a camera module (refer to Figure 6).
  • Page 7 ■ The kit is a demonstrator. It is not designed for verification of datasheet parameters. Such tests need a dedicated test environment. ■ Not designed for use in final applications. © 2014 ESPROS Photonics Corporation 7 / 26 Manual epc610_Camera - V1.5 Characteristics subject to change without notice www.espros.ch...

  • Page 8: Schematics

    2.2. Schematics © 2014 ESPROS Photonics Corporation 8 / 26 Manual epc610_Camera - V1.5 Characteristics subject to change without notice www.espros.ch...

  • Page 9: Assembly & Part List

    15 kOhm Resistor 22 kOhm Resistor R9, R16 47 kOhm Resistor 4.0 MHz Quartz crystal, SMT Table 4: Camera board: part list © 2014 ESPROS Photonics Corporation 9 / 26 Manual epc610_Camera - V1.5 Characteristics subject to change without notice www.espros.ch...

  • Page 10: Hardware Of The Camera

    2.4. Hardware of the camera The electronics of the camera module contains the epc610 chip, the buffering of the supply voltage, the crystal for the chip clock, 7 IR emitter LEDs and a connector for the cable to the mainboard. The board incorporates a lens holder with the receiver lens.

  • Page 11: Setup & Installation

    Start the application with the link “epc600 epc610 Evaluation Kit” that has been added to your program shortcut menu. Disconnect the USB cable before attaching a camera module and proceed with chapter 4.2. Running the epc610 application .

  • Page 12: Sw Installation On Mac

    Before you start the installation process, close all running applications. Copy the installer file “epc600 epc610 Evaluation Kit Install_Vx.x.pkg” from the CD to the desktop. Start the installation by executing the in - staller “epc600 epc610 Evaluation Kit Install_Vx.x.pkg”. The installer routine will load the application software as well as the necessary drivers on your system.
  • Page 13 Start the application software on your computer and press the “Connect” button on your main screen to connect the application software to the evaluation system. Press the button “Start” to start the evaluation software. Refer to next chapter 5. Software “epc610 evaluation system” and user interface for detailed operating instructions. © 2014 ESPROS Photonics Corporation 13 / 26 Manual epc610_Camera - V1.5...

  • Page 14: Software "Epc610 Evaluation System" And User Interface

    This chapter describes the epc600/610 Evaluation Kit software (SW) and graphical user interface (GUI). The user interface is designed as a dialog based application. The software operates the epc610 camera module, reads the data delivered by the module and allows for data logging.

  • Page 15: Basic Operation

    Use an external 1'000mA USB supply. Connect it to the appropriate plug on the mainboard and switch to „Ext.“ power supply. After pow - er-up press the reset button on the mainboard. © 2014 ESPROS Photonics Corporation 15 / 26 Manual epc610_Camera - V1.5...

  • Page 16: Control Widgets

    3D graphic representation corresponding numeric representation Figure 17: Pixel field orientation with optics: Pixel 1/1 is at the lower left corner © 2014 ESPROS Photonics Corporation 16 / 26 Manual epc610_Camera - V1.5 Characteristics subject to change without notice...

  • Page 17: Widget "3D Graph

    1.6μs / 205μs / 1.6ms. The highest integration time corresponding to the selected values is displayed in real time and is continuously adjusted to get the optimal measurement result. Refer to the epc610 datasheet for more information on integration time and how to adjust ©...

  • Page 18: Widget "Brightness" (Grayscale Image)

    The integration time will remain at this value until manually changed again. The temperature and DC light values (ambient-light values) are also continuously read from the epc610 chip and displayed as uncalibrated data. These values are used for compensation of the distance data as explained in chapter 5.1.14: Calibration settings (Widget “Settings”).

  • Page 19: Distance Range Settings (Widget "Settings")

    Save registers: On request of epc's customer support, the user can read the set of the epc610 registers and store it on the computer in a coded file format. For support, he can send later on this file together with the application settings per e-mail to epc. “Application settings” file (see below) and chip registers can give epc's customer support a good insight to help the user debugging the system.

  • Page 20: Firmware Settings (Widget "Settings")

    Therefore, the epc TOF chips have integrated temperature sensors whose readings can be used to offset this effect. In order to deliver optimal performance, each epc610 camera module is calibrated in the factory. These calibration values can be loaded to the Evaluation Kit with the “Upload Firmware...”...

  • Page 21: Widget "Correlation Samples

    This section lists online all the original DCSx sample values of the 4 integration periods belonging to 1 measurement cycle. They apply to the distance and amplitude formula given in the Datasheet epc610, chapter “Distance measurement” and ”Quality of the measurement re- sult”.

  • Page 22: Widget "Int. Time And Amplitude

    Figure 32: The sample values of the 4 integration periods 5.1.19. Log dialog This function allows data logging for offline analysis of epc610 chip read-out data as well as corrected data. The data stream can be col- lected either by number of measurement counts or by a logging time.

  • Page 23: Additional Technical Info And Definitions

    Ambient-light suppression In real world applications, there will always be ambient-light. The epc610 3D TOF Imager is designed to filter out such ambient-light from the received signal (ambient-light suppression). This internal filtering capability works so well that the systems even operates in highly illu- minated scenes such as outside applications in bright sunlight.

  • Page 24: Temperature Compensation

    - ture is necessary. The epc610 has internal temperature sensors that can be used for such compensations. For more details, refer to the datasheet of the chip.

  • Page 25: Light Scattering

    8. Addendum 8.1. Related documents ■ Manual – epc600/610 Evaluation Kit – mainboard, ESPROS photonics corp., 2014 ■ epc610 datasheet, ESPROS photonics corp., 2014 ■ STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx advanced ARM-based 32-bit MCUs, Reference manual, ST Micro- electronics corp., 2011...

  • Page 26: Important Notice

    IMPORTANT NOTICE Information furnished by ESPROS Photonics AG (epc) is believed to be accurate and reliable. However, no responsibility is assumed for its use. ESPROS Photonics AG and its subsidiaries (epc) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.

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