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projects:ambulance [2013/12/02 04:54]
jackd [WVO Fuel System] |
projects:ambulance [2014/07/06 18:03] (current)
jackd [Video Systems] |
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| The processing system will be located in the compartment behind the passenger to allow access from the interior and exterior of the vehicle. The final holding tank may be located in that compartment or under the vehicle. | The processing system will be located in the compartment behind the passenger to allow access from the interior and exterior of the vehicle. The final holding tank may be located in that compartment or under the vehicle. |
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| | Comprehensive page for WVO system: [[Jambulance WVO System]] |
| ==== Wiring ==== | ==== Wiring ==== |
| === MasterCom Siren Contoller === | === MasterCom Siren Contoller === |
| ==== Audio Systems ==== | ==== Audio Systems ==== |
| {{:projects:autotuba.png |}} | {{:projects:autotuba.png |}} |
| Speakers in front doors and rear compartment have been replaced and head unit upgraded to Nakamichi CD-350Z. Future upgrades include installation of power amplifiers to drive speakers and addition of a high-efficiency horn-loaded subwoofer ([[http://www.billfitzmaurice.com/autotuba.html|AutoTuba design by Bill Fitz-Maurice]]). I'm still trying to figure out what to do for the back. Right now I have two 6x9 coaxial drivers, but I'd like to build something more enveloping and probably do some DSP to fix timing issues. | Speakers in front doors and rear compartment have been replaced and head unit upgraded to Nakamichi CD-350Z. Future upgrades include installation of power amplifiers to drive speakers and addition of a high-efficiency horn-loaded subwoofer ([[http://www.billfitzmaurice.com/autotuba.html|AutoTuba design by Bill Fitz-Maurice]]). I'm still trying to figure out what to do for the back. Right now I have two 6x9 coaxial drivers, but I'd like to build something more enveloping and probably do some DSP to fix timing issues. All audio signals from equipment and ports will be patched to a matrix switcher for excellent functionality) |
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| | Amplifiers: Boston Acoustics GT-42 (4x100W @ 4Ohm), Soundstream Reference 300SX (1x300W @ 2Ohm Bridged [high power mode]), Xtant x1001d (not currently used, 5-500Hz response, 1x1000W @ ?Ohm) |
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| ==== Video Systems ==== | ==== Video Systems ==== |
| PC-based system with disk or solid-state storage. I have purchased a system without the CPU for the cameras, cables, and microphone. This system (in its native state) was ruled out due to proprietary formats. I am still considering purchasing one for the purposes of gleaning RS-232 information for the front camera if need be and/or looking into replacing the OS. Backend systems for offloading video are complex, requiring multiple servers. Total cost used on eBay was $60 for cameras and backplane and $70-100 for PC system and storage blade. | PC-based system with disk or solid-state storage. I have purchased a system without the CPU for the cameras, cables, and microphone. This system (in its native state) was ruled out due to proprietary formats. I am still considering purchasing one for the purposes of gleaning RS-232 information for the front camera if need be and/or looking into replacing the OS. Backend systems for offloading video are complex, requiring multiple servers. Total cost used on eBay was $60 for cameras and backplane and $70-100 for PC system and storage blade. |
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| | **i1000/F70** |
| | This is an inexpensive import DVR based on an integrated chipset from Amarella. It supports a built-in front-facing camera and an external camera. I purchased this to evaluate the video quality and get me started. There's some [[http://dashcamtalk.com/i1000-f70/|excellent information on the Dash Cams forum]]. Here's the [[http://dashcamtalk.com/forum/threads/i1000-f70-x6-720p-dual-lens-dvr-dash-camera.21/|Discussion Thread]]. They also provide [[http://dashcamtalk.com/|a really detailed comparison of different models]] that's useful if you're looking to get one and even a [[http://forum.dashcamtalk.com/threads/app-a7tool-v0-6-ambarella-a2-a7-firmware-tool.6029/|sort of development environment for the Ambarella chipsets]]. Hats off to those folks. |
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| | **Other Units under consideration** |
| | I've also considered a number of 4-channel DVRs that run embedded linux (e.g. Fuho E10). I think this might be the best option in the long run - less hacking than the integrian, more options than the other imports. Many of them also have RS232, RSS485, CAN bus, etc available. [[http://dty.com.cn/index.asp|DTY]] sells a couple. CDR-E103GH ("Fuho E10") looks pretty good, maybe no serial? [[http://www.fuho.com/vvr/products.html|More Fuho]]. [[http://www.lifeguidercctv.com/productinfo.asp?id=66|Here's]] another example, MD504, more robust, has multiple serial. |
| ==== Integration ==== | ==== Integration ==== |
| All the wires will be inserted into one giant wire nut and twisted REALLY HARD. | All the wires will be inserted into one giant wire nut and twisted REALLY HARD. |
