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diff --git a/en/compatibility/cts/sensor-fusion-box-assembly.md b/en/compatibility/cts/sensor-fusion-box-assembly.md deleted file mode 100644 index 5f6c6f6f..00000000 --- a/en/compatibility/cts/sensor-fusion-box-assembly.md +++ /dev/null @@ -1,222 +0,0 @@ -Project: /_project.yaml -Book: /_book.yaml - -<!-- - Copyright 2018 The Android Open Source Project - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - http://www.apache.org/licenses/LICENSE-2.0 - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. ---> - -# Sensor Fusion Box Details - -This page provides information on how to purchase or assemble a Sensor Fusion -Box. The Sensor Fusion Box is used in the CameraITS sensor_fusion test and -multi-camera sync test. It provides a consistent test environment for measuring -timestamp accuracy of camera and other sensors for Android phones. It consists -of plastic box components that are laser cut from computer-aided design (CAD) -drawings and a Servo Control Box. - -You can purchase a Sensor Fusion Box or build your own. - -## Purchasing a Sensor Fusion Box - -We recommend purchasing a Sensor Fusion Box from one of the following qualified -vendors. - -* *Acu Spec, Inc.* - 990 Richard Ave, Ste 103, Santa Clara, CA 95050 - fred@acuspecinc.com -* *MYWAY DESIGN* - 4F., No. 163, Fu Ying Rd., New Taipei City, Taiwan - sales@myway.tw - http://www.myway.tw/ - -## Building a Sensor Fusion Box - -This section includes step-by-step instructions for assembling a Sensor Fusion -Box from laser-cut acrylonitrile butadiene styrene (ABS) components (shown in -Figure 1): - -<img src="/compatibility/cts/images/sensor_fusion_assembly_box_cad_drawing.png" width="700" alt="CAD drawing of Sensor Fusion Box components" class="screenshot"> -**Figure 1.** Mechanical drawing of Sensor Fusion Box components - -### Required tools - -Before starting, ensure you have downloaded the technical drawings for the -Sensor Fusion Box (included in the -[Sensor Fusion Box zip file](/compatibility/cts/sensor_fusion_1_5.zip)) and -have the following tools available: - -* Phillips head screwdriver -* Hex keys -* Power drill set -* Exacto knife -* Tape - -### Step 1: Apply vinyl stickers - -After creating the ABS components with a laser -cutter, apply vinyl stickers to the plastic box to get the proper color control -on the interior of the test box: - -1. Apply vinyl on the smooth side of the ABS - as shown in Figure 2. For helpful tips on applying vinyl, refer to - [wikiHow](https://www.wikihow.com/Install-a-Vinyl-Graphic){: .external}. -1. Cut out the necessary holes on the vinyl with the exacto knife. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_abs_pieces.png" width="350" alt="BS pieces"> - **Figure 2.** ABS pieces with vinyl applied on the smooth side (interior of - the box) - -### Step 2: Prepare phone mount and attach servo mount - -To prepare the phone mount to attach to the servo: - -1. Tap 16 holes on the phone fixture with ΒΌ" - 20 and make countersink - holes on the back of the phone fixture. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_phone_fixture_holes.png" width="350" alt="Phone fixture holes"> - **Figure 3.** Phone fixture with tap and countersink holes - -1. With the large shaft that came with the servo, drill pilot holes with a #43 - drill bit (2.26 mm) into the last holes from each side so 4-40 screws can be - inserted through the holes. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_servo_shaft.png" width="350" alt="Servo shaft"> - **Figure 4.** Servo shaft with pilot holes at each end - -1. Insert and tighten the flat-head 4-40 screws as shown in figure 5 on the - front of the phone fixture and tighten the shaft as shown in figure 6. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_screws.png" width="350" alt="Shaft and screws"> - **Figure 5.** Flat-head 4-40 screws - - <img src="/compatibility/cts/images/sensor_fusion_assembly_shaft.png" width="350" alt="Shaft"> - **Figure 6.** Shaft on the back of fixture, tightened by screws applied - from the front - -### Step 3: Attach phone clamps - -To attach the phone clamps: - -1. Apply nylon thumb screws, rubber adhesive, and wire spring to the aluminum - clamp. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_clamp.png" width="350" alt="Clamp with rubber adhesive"> - **Figure 7.** Clamp with rubber adhesive, thumb screws and wire spring - -1. Screw the phone clamps' thumb screws into the tapped holes of the phone - fixture as shown in figure 8. You can adjust the location of the phone mounts - depending on the size of the phones as shown in figure 9. - - * Mechanical drawing: - - <img src="/compatibility/cts/images/sensor_fusion_assembly_clamp_attachment_drawing.png" width="600" alt="CAD drawing of clamp attachment" class="screenshot"> - **Figure 8.** Mechanical drawing of clamp attachment to phone fixture - - * Phone mounts attachment to phone fixture: - - <img src="/compatibility/cts/images/sensor_fusion_assembly_assembled_fixture.png" width="350" alt="Assembled phone fixture"> - **Figure 9.** Assembled phone fixture - -### Step 4: Assemble sliding door rail - -1. Fix sliding panel rails on the top and bottom of the box towards the front. - Figure 10 shows 6-32 screws on pre-tapped holes. Alternatively, you can use - self-tapping screws. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_fixed_rail.png" width="450" alt="Fixed rail"> - **Figure 10.** Fixed sliding panel rail on top and bottom of box - -### Step 5: Attach lighting - -To attach the light brackets and diffuser: - -1. Stack two handle pieces on top of each other and assemble them using 6-32 - screws (or use self-tapping screws). - - <img src="/compatibility/cts/images/sensor_fusion_assembly_handle_pieces.png" width="450" alt="Handle pieces and assembly"> - **Figure 11.** Sensor fusion box handle pieces and assembly - -1. Prepare four 4-40 screws, nuts, and acorn nuts to fix the mounting bracket - from the lighting kit to the wall of the box. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_interior_wall_screws.png" width="350" alt="Screws and bracket on interior wall"> - **Figure 12.** 4-40 screws and light bracket on the interior wall of the box - <img src="/compatibility/cts/images/sensor_fusion_assembly_exterior_bolts.png" width="350" alt="Exterior with bolts applied"> - **Figure 13.** Bolts and acorn bolts applied to the screws from the exterior - of the box - -1. Cut the light diffuser to an appropriate size to wrap the light strips. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_light_strips_diffusers.png" width="350" alt="Light strips and diffusers"> - **Figure 14.** Light strips and light diffusers - -1. Wrap the light diffuser around the strip and tape it at the back. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_strips_taped_back.png" width="350" alt="Strips and diffusers taped from back"> - **Figure 15.** Light strips and light diffusers taped from the back - -1. Snap the lights into the brackets (can be a tight fit). - - <img src="/compatibility/cts/images/sensor_fusion_assembly_interior_wall_lights.png" width="450" alt="Lights on interior wall"> - **Figure 16.** Lights not mounted in brackets (left). Lights mounted in brackets (right). - -### Step 6: Attach phone fixture to servo plate - -To attach the phone fixture to the servo plate: - -1. Prepare four 6-32 screws and a servo plate to fix the servo onto the wall. - Fix the servo onto the interior wall and insert the screws from the inside - into the servo plate on the exterior wall. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_servo_servo_plate.png" width="450" alt="Servo and servo plate"> - **Figure 17.** Servo and servo plate held in place with 6-32 screws - -1. Secure phone fixture onto the servo with nylocks (pushing the center of the - shaft into the servo's rotation center). - - <img src="/compatibility/cts/images/sensor_fusion_assembly_phone_mount_servo.png" width="450" alt="Phone fixture on servo"> - **Figure 18.** Phone mount fixed on servo shaft with nylocks - -1. Screw the phone fixture onto the servo with its servo screw. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_servo_screw.png" width="350" alt="Phone fixture on servo with screw"> - **Figure 19.** Securing phone fixture onto servo with servo screw - -### Step 7: Final assembly - -To complete assembly of the Sensor Fusion Box: - -1. Secure servo control box on the left of the servo with 4-40 screws from the - outside and fasten from the inside with nuts. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_servo_on_wall.png" width="450" alt="Servo control box on wall"> - **Figure 20.** Secure servo control box onto the wall - -1. Tape the box together, then screw the parts together (you might need to - pre-drill holes in some parts). - - * Assembled Sensor Fusion Box: - - <img src="/compatibility/cts/images/sensor_fusion_assembly_taped_box.png" width="450" alt="Taped box"> - **Figure 21.** Taped box with motor assembly and servo control box and - screw detail - -1. Print out a colored copy of the checkerboard (included in the [Sensor Fusion - Box zip file](/compatibility/cts/sensor_fusion_1_5.zip)) on A3 (or 11 x 17 - inch) paper, and tape it on the opposite wall of the phone fixture. - - Make sure the red dot in the center of the checkerboard is directly facing - the camera when placed on the fixture, as shown below. - - <img src="/compatibility/cts/images/sensor_fusion_assembly_checkerboard.png" width="350" alt="Checkerboard"> - **Figure 22.** Checkerboard printed and taped to the opposite wall of phone - fixture |