Himax Application / Use Case – Dashcam Parking Mode
Overview
今時(shí)今日幾乎每個(gè)人的車子都會(huì)安裝行車紀(jì)錄器，而行車紀(jì)錄器在發(fā)展一段時(shí)間之后，從早期僅配備低品質(zhì)傳感器且外型笨重，到今天的智能、聯(lián)網(wǎng)、輕巧甚至做到隱藏式，已經(jīng)有明顯進(jìn)步。行車紀(jì)錄器全時(shí)錄影，最主要目的是在不幸發(fā)生交通事故時(shí)，萬(wàn)一沒(méi)有事發(fā)畫面有時(shí)候難以追究肇事責(zé)任；然而另一個(gè)被關(guān)注的功能，則是在車子熄火後，行車紀(jì)錄器還能運(yùn)行在低功耗狀況下來(lái)監(jiān)控四周環(huán)境，在被其他人或物或車輛碰傷時(shí)，可留下有利影象證據(jù)，即為停車監(jiān)控或駐車哨兵模式。
Himax WE1 Plus做為主處理器的偕同處理器，在停車熄火模式下，可實(shí)現(xiàn)特定事件預(yù)錄來(lái)完善功能更齊全的行車紀(jì)錄器終端應(yīng)用。
Person Detection(人員偵測(cè))，能判斷人類與非人類；在物體接近時(shí)，傳感器偵測(cè)到移動(dòng)且WE1 Plus判定物體為人，才會(huì)喚醒主行車紀(jì)錄處理器開(kāi)始錄影，避免浪費(fèi)內(nèi)存保存空間和電池電量的消耗。而當(dāng)G-Sensor偵測(cè)到觸碰，除了鎖定當(dāng)時(shí)錄影文件避免被復(fù)蓋或人為破壞，主處理器亦被啟動(dòng)，WE1 Plus送出事發(fā)前8秒的畫面，還原完整事故始末與細(xì)節(jié)。
Block Diagram
Tools and Software
Contact HX_WE1-Solution@himax.com.tw for more information.
Resources
| Smart Sensing | Link | Supplier |
|---|---|---|
| Document | http://yaoshancha.cn/product-brief/HX6537.39.40-A_product_brief.pdf http://yaoshancha.cn/products/cmos-image-sensor/always-on-vision-sensors/hm01b0/ http://yaoshancha.cn/products/cmos-image-sensor/always-on-vision-sensors/hm0360/ | Himax |
| Algo Provider | Himax AiZip | |
| Reference Design | Email to: HX_WE1-Solution@himax.com.tw | Himax |
| Evaluation board | https://www.sparkfun.com/products/17256 | Himax |
| Available On Line | https://www.digikey.com/en/products/result?s=N4IgTCBcDaIBIEsC2BDAHiAugXyA | Himax |
* Aizip, Inc., develops AI models for IoT applications. Based in Silicon Valley, Aizip provides design services with superior performance, quick turnaround time, and excellent ROI. Their models can be used in a wide range of applications for an intelligent, automated, and connected world.
