Silicon Radar SiRad Simple Bedienungsanleitung

- 1 -

User Guide

SiRad Simple®

Evaluation Kit

Status:

Date:

Author:

Release

24 Apr. 17

Silicon Radar GmbH

Version:

Document number:

Filename:

Page:

2.2

UserGuide_SiRad_Simple®

1of 34

Silicon Radar GmbH

Im Technologiepark 1

15236 Frankfurt (Oder)

Germany

fon +49.335.557 17 60

fax +49.335.557 10 50

http://www.siliconradar.com

support@siliconradar.com

TRX_120_01 Radar Sensor Evaluation Kit

120GHz MMIC IQ Transceiver TRX_120_01

Version T301 Alumina Cap

- 2 -

Version Control

Version

Changed section

Description of change

Reason of change

1.0

all

Initial document

2.0

all

Content and appearance

Hardware & firmware update

2.1

5.1

Firmware info for flashing

Added info for older Easy Kits

2.2

Added section

Added mechanical drawing

Table of Contents

1Overview and Package Contents ...............................................................................................................5

1.1 Overview ..............................................................................................................................................6

1.2 Features ...............................................................................................................................................6

1.3 Application............................................................................................................................................6

2Installation...................................................................................................................................................7

2.1 Hardware Setup ...................................................................................................................................7

2.1.1 Understanding the External Header (J1) ...................................................................................7

2.1.2 Data Connection via UART Cable (UART Mode)......................................................................7

2.1.3 Wireless Data Connection via WiFi (WiFi Mode).......................................................................8

2.1.4 Mounting the Lens (Optional) ....................................................................................................8

2.2 Software Installation.............................................................................................................................9

2.2.1 Software requirements...............................................................................................................9

2.2.2 Connecting to the Board via USB ............................................................................................10

2.2.3 Connecting to the Board via WiFi ............................................................................................11

2.2.4 Starting the Graphical User Interface (Silicon Radar WebGUI) ..............................................11

3Getting Started with the Silicon Radar WebGUI.......................................................................................12

3.1 Understanding the User Interface ......................................................................................................12

3.2 Using the Control Panel (Sensor Settings) ........................................................................................13

3.2.1 Communication Options (COM Tab) .......................................................................................13

3.2.2 Load and Save Settings (Presets Tab)....................................................................................13

3.2.3 System Settings (System Configuration Tab)..........................................................................14

3.2.4 Radar Frontend Settings (RF Parameters Tab) ......................................................................16

3.2.5 Baseband Processing Settings (BB Processing Tab) .............................................................17

3.2.6 Target Recognition Settings (Target Recognition Tab) ...........................................................18

3.2.7 Scene Control Options (Scene Controls Tab) .........................................................................19

3.2.8 Radar Hardware Information (System Info Tab)......................................................................20

3.2.9 Recently Sent Control Frames (Log Tab) ................................................................................20

3.3 Using the Main Menu .........................................................................................................................20

3.3.1 FFT View..................................................................................................................................20

3.3.2 Status Field and Target List.....................................................................................................21

3.3.3 Target-Timeline........................................................................................................................22

3.3.4 Spectrogram ............................................................................................................................22

3.3.5 Options.....................................................................................................................................22

3.4 Understanding the Configuration Info Field .......................................................................................23

3.5 Camera Controls ................................................................................................................................23

3.6 Understanding the Error Info Field.....................................................................................................24

3.7 Understanding the Data View ............................................................................................................24

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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4Troubleshooting ........................................................................................................................................26

4.1 Drivers ................................................................................................................................................26

4.1.1 Where can I get the driver to connect the SiRad Simple® ? ...................................................26

4.1.2 I installed the FTDI driver for the SiRad Simple® but it does not show up. ............................26

4.1.3 The FTDI driver for the SiRad Simple® does not work properly. ............................................26

4.2 WebGUI .............................................................................................................................................26

4.2.1 I cannot store presets in the Preset tab. ..................................................................................26

4.2.2 I cannot see any output in the WebGUI window......................................................................26

4.2.3 The spectrum output jumps (partly). ........................................................................................26

4.2.4 How does the Auto Gain Control (AGC)-Mode work?.............................................................27

4.2.5 Can I trigger the SiRad Simple® manually? ............................................................................27

4.2.6 Can I use multiple SiRad Simple® sensors in parallel? ..........................................................27

4.2.7 The LED goes off when I connect to the WebGUI...................................................................27

4.2.8 The RF Parameters tab does not show the min / max frequencies properly. .........................27

4.2.9 How do I choose a base-frequency? .......................................................................................27

4.2.10 How do I set the maximum bandwidth in the RF Parameters tab? .........................................27

4.2.11 How do I choose a bandwidth?................................................................................................27

4.2.12 How can I choose the ramp time? ...........................................................................................27

4.2.13 What is the MTI-Mode? ...........................................................................................................27

4.2.14 There are too many targets. The CFAR operator does not work. ...........................................28

4.2.15 How is the distance information calculated? ...........................................................................28

4.2.16 The update rate of the sensor is very low. How can I improve it? ...........................................28

4.3 Sensor Behavior, Range & Lens........................................................................................................28

4.3.1 How is the resolution defined?.................................................................................................28

4.3.2 How is the accuracy defined?..................................................................................................28

4.3.3 Is there a minimum range / blind spot when using the SiRad Simple®?.................................28

4.3.4 Can something be detected within the minimum range / blind spot? ......................................28

4.3.5 What is the maximum range of the SiRad Simple®? ..............................................................28

4.3.6 Can the range of the sensor be increased? ............................................................................28

4.3.7 How is the field of view of the SiRad Simple®?.......................................................................29

4.3.8 How can I get directional information from the SiRad Simple®?.............................................29

4.4 Protocol & RAW data .........................................................................................................................29

4.4.1 Can I use the the SiRad Simple® with own or third-party software?.......................................29

4.4.2 Can I activate raw data only or FFT data only output?............................................................29

4.4.3 Can I use the sensor protocol with <any> device? ..................................................................29

4.5 Schematics & Firmware .....................................................................................................................29

4.5.1 Where can I find the schematics for the SiRad Simple®?.......................................................29

4.5.2 Where can I get the source code for the SiRad Simple®? ......................................................29

5Firmware Update ......................................................................................................................................30

5.1 Microcontroller....................................................................................................................................30

5.2 WiFi Module .......................................................................................................................................30

6Mechanical Drawing .................................................................................................................................32

7Disclaimer / License..................................................................................................................................33

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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List of Figures

Figure 1: SiRad Simple® Evaluation Kit (left) and graphical user interface (right).............................5

Figure 2: External header (J1) pinout ...............................................................................................7

Figure 3: UART pinout on J1 (left) and UART to USB connection via FTDI cable at J1 (right)..........7

Figure 4: WiFi pinout on J1 (left) and WiFi mode configuration (right) ..............................................8

Figure 5: Mounting the lens..............................................................................................................8

Figure 6: Schematic comparison of range with and without the lens.................................................9

Figure 7: Terminal output of the sensor (left) and COM2WebSocket tool (right) .............................10

Figure 8: Silicon Radar WebGUI after start (left) and connected to a sensor (right)........................11

Figure 9: Main panels of the Silicon Radar WebGUI ......................................................................12

Figure 10: Control panel with its different tabs................................................................................13

Figure 11: COM tab of the Control Panel for USB (left) and WiFi (right) communication ................13

Figure 12: Presets tab (left) and predefined settings (right) ............................................................13

Figure 13: Save settings in the Presets tab of the Control Panel ....................................................14

Figure 14: System Configuration tab of the Control Panel ..............................................................14

Figure 15: RF Parameters tab of the Control Panel........................................................................16

Figure 16: BB Processing tab of the Control Panel.........................................................................17

Figure 17: Target Recognition tab of the Control Panel ..................................................................19

Figure 18: Schematic description of the CACFAR-operator............................................................19

Figure 19: Scene Controls tab of the Control Panel........................................................................19

Figure 20: System Info tab (left) and Log tab (right) of the Control Panel .......................................20

Figure 21: Main menu of the WebGUI ............................................................................................20

Figure 22: 2D view of the FFT data ................................................................................................21

Figure 23: 3D view of the FFT data ................................................................................................21

Figure 24: Target list with the status field at the top........................................................................21

Figure 25: Target-Timeline .............................................................................................................22

Figure 26: Spectrogram..................................................................................................................22

Figure 27: Magnitude coloring with phase markers ........................................................................22

Figure 28: Range / target number coloring .....................................................................................22

Figure 29: Phase coloring ..............................................................................................................23

Figure 30: No color.........................................................................................................................23

Figure 31: Configuration words ......................................................................................................23

Figure 32: Camera controls............................................................................................................23

Figure 33: Error info field................................................................................................................24

Figure 34: Data view with different elements in the display scene ..................................................24

Figure 35: Firmware update configuration ......................................................................................30

Figure 36: WiFi module update configuration .................................................................................30

Figure 37: Mechanical drawing of the SiRad Simple® Evaluation Kit .............................................32

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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1 Overview and Package Contents

Thank you for purchasing Silicon Radar’s SiRad Simple® Evaluation Kit. SiRad Simple® is an easy

to use, state-of-the-art 122 GHz radar sensor including a high performance target recognition

algorithm and WiFi connectivity.

What’s in the box?

The SiRad Simple® Evaluation Kit consists of one 122 GHz sensor board and one lens assembly

as shown in Figure 1 (left). The SiRad Simple® Evaluation Kit comes with a free graphical user

interface for user-friendly parametrization of the sensor and multiple visualization modes for radar

data, shown in Figure 1 (right).

Figure 1: SiRad Simple® Evaluation Kit (left) and graphical user interface (right)

The SiRad Simple® Evaluation Kit demonstrates the performance and parameters of the 122 GHz

radar transceiver chip of Silicon Radar. The aim of the evaluation kit is to showcase the FMCW /

CW radar mode using a beginner-friendly system. Due to the flexibility of the system, it can be used

to change important radar parameters on-the-fly to learn to know the basics of radar signal

processing or to find specific parameter settings for a certain radar sensor application.

Silicon Radar puts the focus of the SiRad Simple® Evaluation Kit on an easy-to-use

approach and supports the customer with a set of default key parameters guaranteeing a

proper operation of the sensor (including automatically set parameters of optimized

operation mode).

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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1.1 Overview

The SiRad Simple® Evaluation Kit is an experimental showcase system for Silicon Radar’s highly

integrated 122 GHz IQ transceiver with antennas in package. For more information about the

features of Silicon Radar’s transceiver chips, all data sheets are available on the Silicon Radar

webpage

We developed the evaluation kit to demonstrate our millimeter-wave sensors to measure the

distance and velocity using RADAR principles. Both, frequency modulated continuous wave

(FMCW) or continuous wave (CW), principles are applied.

1.2 Features

The SiRad Simple® Evaluation Kit feature set includes:

phase locked loop (PLL) running the integrated low phase noise Push-Push VCO in the

transceiver chip,

frequency lock control to automatically adjust the start and stop frequencies of the

generated FMCW radar frequency ramp,

programmable FMCW parameters,

122 GHz ISM band or 7 GHz high bandwidth FMCW operations,

analog signal conditioning to amplify and filter the I and Q output signals of the transceiver,

Analog-to-Digital-converter to digitize the I and Q receiver signals,

microcontroller to do

◦PLL setup, ramp configuration, A-D conversion,

◦signal processing and target recognition for up to 16 targets simultaneously,

◦transfer to the host system, trigger configurable GP output pins,

web-based graphical user interface to change relevant parameters, plot the FFT of the

baseband channels, display the distance and velocity measurements and the target list,

standard USB or WiFi communication to PC,

DC-DC conversion to provide single supply from USB or an external DC supply.

1.3 Application

The SiRad Simple® Evaluation Kit is supposed to be used for short-term evaluation purposes in

laboratory environments only. All regulations of the according Silicon Radar Evaluation Agreement

may apply.

IMPORTANT:

The radar frontends are able to use a larger bandwidth than what is allowed in the ISM

bands. In most countries, the bandwidth is limited to 1 GHz between 122 GHz and 123 GHz

for production purposes by law. Please check your local regulations. It is up to the customer

to make sure that the frontend is not used in these conditions.

http://www.siliconradar.de/transceiver_d.html

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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2 Installation

2.1 Hardware Setup

2.1.1 Understanding the External Header (J1)

The external header in Figure 2 is used to connect to the sensor board in different operating

modes. In UART mode, the external header is used to connect a UART cable with RX/TX lines and

power supply to the sensor board. The data connection setup via UART is explained in Section

2.1.2. In WiFi mode, the external header is used to connect the WiFi module to the microcontroller

on the board. The wireless data connection setup via WiFi is explained in Section 2.1.3. In

programming mode, the external header is used to program either the WiFi module or the

microcontroller, please see Section 5. The external header can also be used to trigger

measurements manually via the external trigger line (TR), also see Section 3.2.3.1.

Description

+5V

GND

microcontroller TX*

microcontroller RX*

external trigger line*

WiFi TX*

WiFi RX*

* 3.3V tolerant only!

Figure 2: External header (J1) pinout

2.1.2 Data Connection via UART Cable (UART Mode)

If you want to connect to the sensor via WiFi instead of UART, please directly continue with

Section 2.1.3. The UART interface pins of the sensor board are shown in Figure 3 (left). You can

use the UART interface to connect the sensor board to a PC or in a target application with a serial

interface. Figure 3 (right) shows the sensor board with an FTDI cable attached to the external

header (J1), which provides a virtual serial port via USB to a PC. Make sure to use a cable with

3.3V TTL (TX/RX) levels!

Figure 3: UART pinout on J1 (left) and UART to USB connection via FTDI cable at J1 (right)

The FTDI cable’s VCC is connected to +5V, the cable’s GND to any GD pin (there are four), the

cable’s RX to the TX line of the microcontroller (MT) and the cable’s TX to the RX line of the

microcontroller (MR).

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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Make sure that both DIP switches are in their OFF positions and the power jumper (J2) for

the WiFi module is open (switched off). Please proceed to Section 2.1.4 to install the lens

(optional) or to Section 2.2 for running the Evaluation Kit software.

2.1.3 Wireless Data Connection via WiFi (WiFi Mode)

If you want to connect to the sensor via UART instead of WiFi, please skip this section and go back

to Section 2.1.2. Please be aware that the WiFi module has a limited transfer rate. The

maximal possible frame update rate is about 10 Hz when using the WiFi connection. The

WiFi interface pins of the sensor board are shown in Figure 4 (left). To run the sensor in WiFi

mode, use the three jumpers delivered with the sensor and close the power jumper (J2) for the WiFi

module (switched on) and connect two jumpers between MT/WR and MR/WT. Apply +5V to the 5V

pin and GND to the any GD pin (there are four) of the external header (J1).

Figure 4: WiFi pinout on J1 (left) and WiFi mode configuration (right)

Please proceed to Section 2.1.4 to install the lens (optional) or to Section 2.2 for running the

Evaluation Kit software.

2.1.4 Mounting the Lens (Optional)

The maximum range of the Evaluation Kit is approximately 40 meters with an opening angle of

around +/- 30 degrees (-6dB) - for strong targets like a building or car - or +/- 4 degrees with the

lens mounted. If you want to use the lens to increase the maximum range of the system and to

decrease the opening angle, please install the lens at a distance about 10 to 15 mm away from the

radar frontend’s surface, see Figure 5. You can use the provided 10 mm spacers to mount the lens.

With the lens installed, the opening angle of the system decreases like compared in Figure 6.

Figure 5: Mounting the lens

Frontend

Lens

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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The lens has a focal length of 15 mm with an opening angle of +/- 4 degrees. If it is installed closer

to the radar frontend, the beam will be wider. Figure 6 shows a schematic diagram of the two range

configurations modes - with and without the lens.

Figure 6: Schematic comparison of range with and without the lens

2.2 Software Installation

2.2.1 Software requirements

The SiRad Simple® Evaluation Kit software for PC is available from the Silicon Radar webpage

upon request. There are two possibilities to connect the sensor to the Evaluation Kit software,

either using a UART-USB connection provided by a virtual COM port –explained in Section 2.2.2 –

or via WiFi –explained in Section 2.2.3. The hardware setup for the UART and WiFi connection

modes have been explained in Section 2.1.2 (UART) and 2.1.3 (WiFi).

Please configure the sensor board for either the UART mode (for the USB connection) or the

WiFi mode before proceeding to one of the next sections.

The Evaluation Kit software requires a web browser (not included in the software package) that

supports WebGL, for example, Google Chrome Browser or Mozilla Firefox. WebGL requires a

graphics card that supports OpenGL. Further, the software requires a 32 bit Java JRE or JDK

version 1.8.0-111 or later to be installed on the system running the software. Please also have a

look at Table 1 for the software requirements.

Please note that 64 bit Java is not supported by the software package.

Table 1: Software requirements

Requirement

Software / Version

Operating system

Microsoft Windows 7/10

Java

32 bit Java JRE/JDK 1.8.0-1113

Browser

Chrome Browser or Mozilla Firefox4

http://www.siliconradar.de/evalkits_d.html

http://www.oracle.com/technetwork/java/javase/downloads/index.html

https://www.google.com/chrome/browser/desktop/index.html

User Guide (Version 2.2) of the

SiRad Simple® Evaluation Kit

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2.2.2 Connecting to the Board via USB

If you want to connect to the sensor via WiFi instead of USB, please directly continue with

Section 2.2.3. The sensor board can be connected to a PC via USB through an FTDI cable

(delivered with the evaluation kit), which provides a virtual COM port. We recommend using a cable

with FTDI chipset instead of cheaper alternatives since a lot of our customers found the cheaper

alternatives to be very unstable. If you want to use a cheaper alternative, skip the next point and

see the vendor’s website of your cable.

Installing the FTDI driver

Microsoft Windows usually installs the driver automatically once the FTDI cable is connected to the

PC. Therefore, the PC has to be connected to the internet and the automatic driver installation

feature has to be enabled (default behavior). If you need to install the driver manually, go to the

FTDI Chip website

and download the latest VCP driver. Please read the Installation Guide and

Release Note linked on the vendor’s website. Once the FTDI driver is installed, the FTDI cable

connected to the sensor and to the PC should provide a virtual COM port. On Microsoft Windows,

the COM port number can be checked in the device manager by connecting and disconnecting the

USB port of the FTDI cable. Before you proceed with the installation of the software, you can now

optionally connect to this serial port using a terminal program such as PuTTY

or Realterm

with the

following UART settings: 230400 baud, 8 bits, 1 stop bit, no flow control. You should see plenty of

protocol output from the sensor like in Figure 7 (left).

Figure 7: Terminal output of the sensor (left) and COM2WebSocket tool (right)

Installing the Evaluation Kit’s COM2WebSocket tool

The Evaluation Kit software contains a COM2WebSocket tool that creates a WebSocket from the

virtual COM port to provide it to the graphical user interface. You can find the tool in the Install

Package in the ‘Software’ folder. The COM2WebSocket tool is portable and can be copied to a path

of your choice on your PC. Make sure that the java.exe of your Java JRE or SDK installation is

available in the PATH variable of Windows, then start it by double clicking the Com2Websocket.jar

file. Alternatively, or if you do not have Admin rights, you can also change the path to the ‘java.exe’

file of your Java installation in the file ‘runme.bat’of the COM2WebSocket tool and then run it by a

double click on the ‘runme.bat’ file. In the COM2WebSocket application window, select the virtual

COM port number that belongs to your sensor board and select 230400 baud as the baudrate like

shown in Figure 7. A click on the ‘connect’ button opens a WebSocket server, which is fed with the

data coming from the sensor board. Proceed to Section 2.2.4 for running the graphical user

interface.

http://www.ftdichip.com/Drivers/VCP.htm

http://www.putty.org

https://realterm.sourceforge.io

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