品質 車両カメラレコーダー & 車両カメラ メーカー

基本情報中国名自動車用カメラ機能ビデオやオーディオを提示する機能効果交通事故対策は より科学的な基盤を提供カタログ1 機能2 パフォーマンス3つのレンズ4 作業原理5 設置 要求   機能1 交通事故の分析と判断のための信頼できる証拠を提供すること2 運転手と乗客が車内の状態をチェックするのに便利3. 紛失・発見物件,盗難防止等について,車両の乗客の間で争いを解決するための基盤を提供すること.4, 車両の運転の安全性を確保するため,輸送の内外環境の監視を図る.折りたたむ   性能自動車カメラの性能は以下の側面から評価することができます.1 、 チップCCD and CMOS chips are important components of the reverse camera which can be divided into CCD and CMOS according to their different components CMOS is mainly used in products with lower image quality Its advantages are lower manufacturing cost and power consumption compared to CCD but its disadvantage is that CMOS cameras have higher requirements for light sources CCD is a high - end technology component used in photography and videography which also comes with a video capture card CCD and CMOS have a significant difference in technology and performance Generally speaking CCD has better performance but it is also more expensive It is recommended to choose a CCD camera without considering the cost   2 、 明確性Clarity is one of the important indicators for measuring cameras Generally speaking products with high clarity will have better image quality Products with a clarity of 420 lines have become the mainstream product for reverse cameras while products with a clarity of 380 lines can also be chosen if well tuned There are better chips such as 480 wire 600 wire 700 wire etc However depending on the chip level of each camera the level of photosensitive components including the level of debugging technicians products of the same chip and grade may present different quality effects It also depends on what kind of lens is used高解像度製品では 夜間視力の効果に 割引があります   3 、 夜の視力夜間視力の効果は 製品の透明性に関係しています 透明性が高くなるほど 製品の夜間視力の効果が悪くなります これはチップ自体によるものです high - quality products have night vision function and do not produce image effects on objects Although the color may be slightly different clarity is not a problem If there is infrared night vision fill or LED white light fill night vision will be clearer and more visible   4 、 防水ほとんどのリバースカメラ製品には防水機能があります最も重要なことは,実際の効果を見て,画像を比較することです. 画像の効果は,実際に撮影された画像の   5 、特殊車両向け専用バックカメラMany cars have already produced specialized reverse cameras that can be used with over 500 models When choosing be sure to first choose your own model specific reverse camera If not then choose a universal reverse camera   6 、 ユニバーサルカメラ一般用カメラは18台5mm perforated cameras small butterfly external cameras license plate frame cameras 28mm perforated cameras bus cameras and other external cameras such as LED night vision color external cameras for car navigators   レンズ 自動車に搭載されたカメラのレンズは,コアコンポーネントであり,以下の4つの主要なパラメータです 折りたたむ焦点距離The size of the focal length determines the size of the field of view angle When the focal length value is small the field of view angle is large and the observed range is also large but the resolution of distant objects is not very clear The focal length value is large the field of view angle is small and the observation range is small As long as the focal length is selected appropriately even distant objects can be seen clearly Due to the one - to - one correspondence between focal length and field of view angle a determined focal length means a determined field of view angle Therefore when selecting a lens focal length it is important to fully consider whether the observation details are important or whether a large observation range is important If you want to see details choose a long focal length lens If you are watching close - up scenes choose a wide - angle lens with a small focal length   折りたたみの開口率   Fで表される光流はレンズの焦点距離 f と光口 D の比率で測定される.例えば 6mm / F1 の最大 F 値で各レンズを標識する.4は最大開口が4である. 29 millimeters The luminous flux is inversely proportional to the square of the F - value and the smaller the F - value the greater the luminous flux The scale values of the aperture index sequence on the lens are 1.4 2 2.8 4 5 ほら6 8 11 16 22 etc The pattern is that the exposure amount at the previous scale value is exactly twice that of the corresponding exposure amount at the latter scale value That is to say the aperture of the lens is 1 / 1.4 1 / 2 1 / 2.8 1 / 4 1 / 56 1 / 8 1 / 11 1 / 16 1 / 22 respectively The former value is twice the root of the latter value Therefore the smaller the aperture index the larger the aperture and the greater the illumination on the imaging target surface In addition the aperture of the lens can be divided into manual IRIS and automatic IRIS When used in conjunction with a camera manual aperture is suitable for situations where there is not much change in brightness Its light intake is adjusted through the aperture ring on the lens until it is suitable in one go The automatic aperture lens will automatically adjust according to the changes in light and is used in outdoor entrance and other places with large and frequent light changes   オートアイリスレンズオートマティック・アパルチャー・レンズは2つのカテゴリーに分かれます: one is called video (VIDEO) drive type and the lens itself contains an amplifier circuit to convert the video amplitude signal transmitted by the camera into control of the aperture motor Another type is called DC drive type which uses the DC voltage on the camera to directly control the aperture This type of lens only includes an ammeter type aperture motor and requires an amplifier circuit inside the camera For various types of automatic aperture lenses there are usually two adjustable knobs One is the ALC adjustment (metering adjustment) which has two options peak metering and average metering based on target lighting conditions Generally the average metering level is taken Another is LEVEL adjustment (sensitivity) which can make the output image bright or dim   折りたたむズームレンズズームレンズは2種類あります: manual zoom lenses and electric zoom lenses Manual zoom lenses are generally used for scientific research projects rather than in closed - loop monitoring systems When monitoring large scenes the camera usually needs to be used in conjunction with an electric lens and pan tilt The advantage of an electric lens is that it has a large zoom range which allows for viewing a wide range of situations and focusing on certain details In addition the pan tilt can rotate up down left and right resulting in a very large viewing range Electric lenses have multiple magnifications such as 6x 10x 15x 20x etc If you know the reference focal length you can determine the variable range of the lens focal length For example a 6x electric lens with a reference focal length of 8 5ミリメートルは,8.5から51ミリメートルの連続調整可能なズーム範囲と31.3から5の視野角度を持つ.5 degrees The control voltage of electric lenses is generally 8V ~ 16V DC with a maximum current of 30mA So when selecting a controller it is important to fully consider the length of the transmission cable If the distance is too far the voltage drop generated by the line will cause the lens to be uncontrollable Therefore it is necessary to increase the input control voltage or replace the video matrix host with a decoder for controlこの4つの指標係数をマスターすることは,レンズの構成と適用に適しています.   運用原則The camera power is connected to the reverse taillights When reverse gear is engaged the camera synchronizes power supply and enters the working state The collected video information is sent to the wireless receiver located at the front of the car through the wireless transmitter The receiver transmits the video information to the GPS navigator through the AV IN interface This way when the receiver receives the signal regardless of whether the Gps navigator is in any operating interface We will prioritize providing LCD screens for reverse image videos   The difference between the use of car mounted cameras car mounted displays and car mounted DVD navigation systems as well as portable GPS navigation systems is that when using car mounted displays the car mounted displays do not need to be turned on As long as reverse gear is engaged the car mounted displays will automatically display the image of the car mounted camera The car DVD navigation can only display the car camera image under normal startup conditions When using a portable GPS navigation system it is necessary to turn on the navigation system before displaying the car camera image   五番目 Because the industry of in car cameras has just started customers initially did not have high requirements for this color and the price of color is also relatively expensive However with the development of technology color cameras will also become more and more widespread   6 バスの設置コストには主に以下の側面が含まれます: host cost camera cost hard drive cable installation cost The price of different host equipment varies and the price of different camera quantities also varies The host price in the market itself varies greatly  

機内カメラの設置要件 システム要件都市公共交通機関車両監視システムの導入には,以下のシステム要件が必要です.1リアルタイムモニタリング: 公共交通機関の運転状況をモニタリングし,車両の内側と外側を記録します.2安全保護: バス事故が発生すると,システムは自動的に関連情報を記録し,緊急事態の場合,積極的にアラームを鳴らします.3データの分析: 車の走行軌跡と行動を迅速に分析し,運転効率を向上させる.システム実装都市公共交通機関車両監視システムの具体的な実施手順は以下のとおりです.4カメラを設置カメラの設置は,都市バス監視システムの最初のステップであり,カメラの設置の位置も監視効果に影響を与える重要な要因です.カメラは車両の上部に設置され,車両全体をカバーし,車両の速度などのデータを記録する.同時に,道路運転中にカメラが緩むのを防ぐために,カメラの全体的なフレームを構築する必要があります.車両モニタリング信号の送信に影響を与える.2ハードウェア接続都市バスの監視システムを構築した後,データ収集と保存のためのプラットフォームを確立する必要があります. ハードウェア接続にはケーブル,サーバー,センサー,カメラ,分析ソフトこれらのデバイスは,しばしば複数の異なるインターフェースの使用を必要とし,対応するデータ送信も異なる送信プロトコルに依存する.したがって,すべてのデバイスが中央サーバーに効果的に接続できるようにする必要があり,データを迅速かつ効率的に保存する必要があります..3ソフトウェア開発都市バスモニタリングシステムの構築において,ソフトウェア開発は最も重要な部分の一つである.特定の機能要件に従ってソフトウェアアプリケーションを開発する必要がある車両の位置,速度,温度,および車両の内部安全条件に関するデータを収集できるリアルタイムデータ収集アプリケーションですデータ暗号化アプリケーションは,情報漏洩を防ぐために機密情報を暗号化し,送信することができます.4データの処理都市公共交通機関が多いため,収集されたデータを処理し,統合する必要があります. 収集されたデータを分析するために,データ分析ツールを使用して,異常な状況や車両の不具合を迅速に特定するために自動車の運転情報については,一般市民に開示することは許されません.車両の運転情報を完全に保護する必要があります.5情報の公開最後に,一般市民にとって,リアルタイムに車両の位置を把握できるということは,乗客が公共交通機関をより便利に利用できるということです.駅や公共の場所で"リアルタイム車両操作監視"の画面を設置したり,車両操作ソフトウェアを使用したりできます乗客がリアルタイムで バス情報を入手できるように概要都市バス監視システムの構築は,バス運行の安全性と調整を大幅に改善することができます.異常な状態はすぐに識別できますもちろん,都市公共交通機関車両監視システムの構築の実施プロセスでは,上記の計画を実行し, 具体的ニーズと条件に従って開発する必要がある