Development of the camera interface standard
The following are some of the developments in camera interface standards: ** 1. Interface of the Camera Link ** 1. ** Release time and basic information ** - It was introduced in 2000 by the Aia Association and gradually upgraded to support higher data transmission speeds. Some versions required two cables for transmission. 2. ** Transmission speed and configuration ** - There were three main versions. The Base version had a transmission speed of 2.04Gbit/s and used the PDA (Mini D ribbon) 26-pin connection; the Medium version had a transmission speed of 5.44Gbit/s and the capacity would double when a second cable was used; and the Deca/Extended version could transmit up to 6.8Gbit/s. 3. ** Usage features ** - The transmission speed was currently the fastest bus type in industrial cameras. It was generally used for high-resolution high-speed area-scan cameras or line-scan cameras. However, it had some shortcomings, such as requiring a separate interface, not portable, high cost, less practical applications, and short transmission distance. ** 2. USB port ** 1. **USB2.0 Interface ** - It was one of the earliest digital interface applications. It had a short development cycle and low cost. It was a relatively common type. - All computers were equipped with this interface, which was convenient to connect and did not require an acquisition card. - However, the transmission rate was slow, with a theoretical speed of only 480Mb (60Mb) and an actual data transmission speed of only about 30Mb/S. The transmission protocol (Bulk-Only Transport (BOT) protocol) and the encryption method were not good. During the transmission process, the CPU participated in the management, which occupied and consumed a lot of resources. The interface was unstable, the camera usually did not have strong screws, and it might be loose on equipment that often moved. The transmission distance was short, and the signal was easy to decay. 2. **USB3.0 Interface ** - It was designed on the basis of USB 2.0. Two new sets of data buses were added. To ensure backward compatibility, a set of USB 2.0 transmission buses was retained. - In addition to supporting the traditional BOT protocol, the new USB Attached SCSI Protocol (USAP) can fully take advantage of the high-speed 5Gbit/s. - However, due to the late release of the bus standard, the stability of the protocol was worrying, and the transmission distance problem was still not resolved. ** 3. GIGE Giga-bit network interface ** 1. ** Basic features ** - The stability of the GigaNet protocol had been the focus of market application in recent years. 2. ** Usage and Performance ** - It was easy to use, and it could work normally when connected to a Thousand-kilometer network card. However, the early versions of the Ni software might have requirements for the chip of the GigE network card (for example, the chip of Intel was needed to drive the GIGE camera normally, and the chip of Realtek was not able to respond). - There was a giant frame parameters similar to the Packet Size in 1394 in the attributes of the Giga network card. Setting this parameters could achieve a better effect. - The transmission distance is long, and it can be transmitted 100 meters. It can be used by multiple units at the same time, and the CPU usage rate is small. ** 4. CoaXPress(CXP) Interface ** 1. ** Release and Transmission Speed ** - It was launched in 2008 to support high-speed imaging applications. - Using 75 Omega coax cable, each channel supports up to 6.25Gbit/s data transmission speed, and multiple channels can be used to support faster data transmission rates. 2. ** Power and programming interface requirements ** - Each CXP cable could provide up to 13W of power, and both the "device" and "host" were required to support the GenICam camera programming interface. Although single-channel coax cables were cheap, the cost of installing multi-channel cable components and frame clips at the CXP interface increased rapidly. ** 5. High-quality Bluetooth interface (application in cameras)** - The USB cable was commonly used to connect to televisions, monitors, and other devices. In terms of cameras, some USB cables such as the Dite double-head split-type USB fiber cable could be used to connect cameras with a Micro USB interface. This interface also involved different versions when connecting cameras and other devices, such as HDI2.0 and HDI2.1. The HDI2.1 version had a transmission band width of up to 48Gbit/s, supported a variety of video quality output (such as 8K/60HZ, 4K/120HZ, 2K/144HZ, 1080P/240HZ), supported dynamic HVR display, and supported 3D video. Read more exciting novels for free
The lens and camera interface
The lens and camera interface was a component used to connect the lens and the camera. Suzhou Ouka optical instrument factory specialized in the production and development of a camera interface, this interface can be connected to different brands and models of lenses, so that the camera can be used normally. There are many types of industrial camera cable ports: - **USB port **: It is a commonly used port for digital cameras. It can directly output digital image signals. USB was the full name of Universal serial bus. The interface was 4-pin, including 2 power cables and 2 signal cables. There were different versions of USB. The early USB2.0 interface was convenient and widely used, but the transmission rate was slow (480Mbit/s), the communication distance was short (5m), and the band width was mostly used for image transmission (80%). The transmission required the CPU to participate in management and consumed a lot of resources, and the interface was unstable. USB3.0 added two sets of data lines on the basis of USB2.0, which were backward compatible. The transmission speed was increased to 4.8Gbit/s, and the communication distance was extended to 10m. However, the transmission distance was still relatively short. USB interface cameras were easy to use and had a wide range of ports. They were widely used in microscopes, scientific research experiments, portable equipment, and other industries. At present, USB Type Micro-B ports were the mainstream on industrial interface cameras. In the future, USB Type C ports might be popularized. - ** IMEE1394 (Firewire Interface)**: It is a high-speed serial bus. It supports hot swapping, real-time data transmission, and uses a bus structure. It is widely used in the industrial field. It has good protocol and coding methods, and the transmission speed is stable. The 1394a's maximum transmission speed was 400mps, and the 1394b's maximum transmission speed was 800mps (3.2mps was relatively rare). Its interface was divided into 4-core and 6-core. The 4-core contained two pairs of data cables, and the 6-core had a set of power cables in addition to the data cable. This interface did not require a controller and could be used for peer-to-peer transmission. The 1394a's maximum transmission distance was 4.5 meters, and the 1394b's transmission distance was usually 10 meters (100 meters, 100 Mbit/s, when the data rate was reduced). However, the interface's penetration rate was low and it had been slowly eliminated by the market. - **Camerlink interface **: A digital image signal communication interface protocol introduced by the Aia Association. It is a serial communication protocol that uses the LVVS interface standard. It was developed from the Channel Link technology, adding the transmission control signal and defined the relevant transmission standards. The protocol used the MDR - 26-pin connection or the SAR- 26-pin connection, which had high speed (up to 6400Mbps), strong anti-interference ability, and low power consumption. However, it required a separate CameraLink interface, which was not portable, expensive, and rarely used in practical applications. - ** Gige Giga-bit ether interface **: created and promoted by Aia. It is a camera interface standard developed based on the Giga-bit ether communication protocol. It is suitable for industrial imaging applications. It can transmit uncompressed video signals over the network and can use low-cost cables to transmit images over long distances. In addition, in the field of machine vision, other data transmission ports were also developed: - **CoaXPress (CXP) interface **: launched in 2008, supports high-speed imaging applications, uses 75 Omega coax cable, supports data transmission speed of up to 6.25Gbit/s per channel, and can increase the transmission rate of multiple channels. Each cable can provide up to 13W of power. It requires the "device" and "host" to support the GenICam camera programming interface. However, the cost of installing multi-channel cable components and frame clips on a single-channel coax cable increases rapidly. - **CameraLink interface **: In 2000, it was launched by Aia Association and gradually upgraded.（2.04Gbit/s）、Medium (5.44Gbit/s) and Deca/Extended (6.8Gbit/s). Base uses an ADC- 26 pin, medium/full requires a second cable to double the capacity, Deca/Extended can transmit up to 6.8Gbit/s data, and like the CXP interface, it requires an image acquisition card that is compatible with the CameralLink power supply (PoQL) standard for power supply. It lacks error correction or resend functions. The cable setup was expensive and troublesome. - **GigE Vision standard interface **: It is managed by the Aia Association and allows the use of existing low-cost ether cables, connections, switches, and other components. Copper cables can transmit image data up to 100 meters away, and more data can be transmitted through the switch and optical fiber adapters. It has the potential to create different network topologies. Each camera can be placed on the network independently through an IP address. It can be viewed, controlled, and monitored from any PC on the network. However, the maximum 115mb/s has limitations for certain applications. However, NBUSE-T technology could increase the band width within its framework. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
camera telescope interface
Different cameras and binoculars may require different ports or rings to connect. For example, there were telescope mounts for card cameras and single-lens reflex cameras. When purchasing, one had to choose according to the situation of their own camera. There was also a special mount for the Startrand astronomical telescope camera, which provided Canon's Canon mounting ring, which was suitable for Nikon, Sony, Minolta, Olympus, and other camera mounts. The special mounting ring for bird-viewing glasses was designed for bird-viewing glasses and single-lens reflex cameras, and it used an M42×0.75 interface to ensure compatibility. The special mounting ring for the Laika bird-viewing glasses was designed for specific brands and ports to ensure precise connection. Some cameras, such as the BAC290MC camera, had a C-port interface, and some cameras had a USB3.0 interface. It was necessary to choose a suitable connection interface or an adapting ring according to the specific model of the camera and telescope. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Industrial camera communication interface
The communication interface of industrial cameras mainly has the following types: 1. **USB port **: - ** USB 1.0 **: released in 1996, transmission speed of 1.5Bit/s. - **USB1.1**: released in 1998, transmission speed of 12 Mbit/s, suitable for USB mouse, keyboard, home scanner, etc. - **USB2.0**: released in 2000, transmission speed of 480 Mbit/s, communication distance of 5m, 80% of the band width used for image transmission. The early USB 2.0 interface was easy to connect. Almost all computers had a USB interface, so there was no need for an acquisition card. However, the transmission rate was slow, and the transmission process required the CPU to participate in the management. It took up and consumed a lot of resources, and the interface was unstable. - **USB3.0**: released in 2008, transmission speed of 4.8Gbit/s, communication distance of 10m, 80% of the band width used for image transmission. USB3.0 added two sets of data cables on the basis of USB2.0, which were backward compatible and solved the problem of slow transmission speed. USB cameras were easy to use and had a wide range of ports. They were currently widely used in microscopes, scientific research experiments, portable equipment, and other industries. The USB Type Micro-B interface was still mainstream in industrial cameras. With the maturity of USB Type C technology, USB Type C interface might be popularized in future USB cameras. 2. ** IMEE1394 (Firewire Interface)**: The IMEE1394 bus is a high-speed serial bus, also known as Firewire. It supports hot swapping, real-time data transmission, and uses a bus structure and plug and play. It is used to connect digital products to computers and other machines. It is widely used in the industrial field. Its protocol and coding method were good, and the transmission speed was stable. The maximum transmission speed of 1394a was 400Mbit/s, and the maximum transmission speed of 1394b was 800Mbit/s (3.2Gbit was relatively rare). The interface had a low penetration rate and was monopolized by Apple in the early days. This interface was usually not included in the computer and required an additional acquisition card. The 1394 interface was divided into 4-core and 6-core. There were two pairs of data cables in the 4-core, and the 6-core also included a set of power cables to supply power to external devices. The 1394 interface does not require a controller and can achieve peer-to-peer transmission. The maximum transmission distance of 1394a is 4.5 meters, and the transmission distance of 1394b is usually 10 meters. It can be extended to 100 meters (100 Mbit/s) when the data rate is reduced. The transmission distance can be further improved by using relay equipment, but it has been slowly eliminated by the market. 3. **Camerlink interface **: A digital image signal communication interface protocol introduced by the Aia Association. It is a serial communication protocol that uses the LVVS interface standard (differential technology: LVVS (low voltage differential signal)). It has the characteristics of high speed, strong anti-interference ability, and low power consumption. It was developed from the Channel Link technology, adding some transmission control signals on the basis of which the relevant transmission standards were defined. The protocol uses an ADC- 26 pin or an SSR- 26 pin, and the band width can reach 6400 Mbit/s. However, it requires a separate CameraLink interface, which is not portable, resulting in high cost and less practical applications. 4. **Gige Giga-bit ether interface **: It was created and promoted by the Aia(Automatde Imaging Association). It was a camera interface standard developed based on the Giga-bit ether communication protocol. 5. **CoaXPress interface **:(The reference does not mention the interface features in detail, only listing it as an industrial camera interface type). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to hide the phone camera interface
1. He opened the camera app. 2. Touch 'settings' or 'options'(it may appear as a gear icon). 3. Search for options such as "photo interface" or "interface style." 4. Choose options such as "Simple" or "Simple" to hide the photo function bar. 1. On the main screen, he clicked [Setting]. 2. Press [Show]. 3. He scrolled up the screen and clicked on the navigation bar. 4. Press the button on the right side of the [Show and Hide] button. The blue button indicates that it is activated. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Industrial camera installation interface type
The common installation interface types of industrial cameras include C interface, CS interface, F interface, V interface, T2 interface, M42 interface, M50 interface, etc. The C-Mount lens was the most commonly used interface type in the field of machine vision. The rear port was a 25mm diameter screw port interface, and the image surface size was 2/3 / 1/2 inches. It had the characteristics of high-definition coating, glass lens, and metal shell. The aperture had no gear change, and there were aperture value and focus value labels. The aperture could be opened and closed. In addition, different interface types have no direct relationship with the performance and quality of industrial lenses. If necessary, you can also find the interface between various commonly used ports. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to remove the camera on the WeChat interface?
To remove the camera on the WeChat interface, you can do the following: Open the "settings" icon on the phone, swipe down to find the "more applications" option; click to enter the phone application management interface, swipe down to find the "WeChat" icon and click to enter the WeChat settings main page, then click the "rights management" option; Then swipe down to find the camera (camera) option, click it; In the pop-up interface, click the "reject" option to turn off the WeChat camera permission. In addition, if the camera icon is displayed in the upper left corner of the WeChat video, you can turn on the phone and click "I","Setting","Personal Information and Authority","System Authority Management" and "camera" to set it to not allow it. You can also operate the phone manager, click privacy protection, click the flare, and click to close the application sensitive behavior reminder. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What model is the lens interface of the Pearl River camera?
The Pearl River S - 201 lens was fitted with an FO mount. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
I can't find the camera on the Huawei mate30 phone interface.
If the camera can't be found on the Huawei Mate 30 phone interface, there may be the following situations and solutions: 1. ** Might have been hidden or moved **: Swipe left and right on the main screen to find the camera. The camera icon might have been accidentally moved to another page or folder. You could also scroll down from the top of the screen to bring up the search bar and type in "camera" to find it. 2. ** The application has been uninstalled or malfunctioned **: Although the camera that comes with the system cannot be uninstalled, if the phone has special permission or the system is abnormal, the camera application may disappear or not display normally. You can try to check if there is a camera app in the "settings-applications-application management" tab. If there is, you can try to clear the camera app data or uninstall the update and then re-install it (if there is an option to do so). If you can't find the camera application in the application management, you may need to consider restoring the factory settings (pay attention to the backup data) or contact Huawei's official customer service for help. 3. ** System problem **: Some system errors may cause the camera icon to not appear. He could try to restart the phone and see if it could return to normal after the restart. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Hikvision camera development kit Nvidia
Hikvision used an Nvidia CPU and a JetsonTX1 platform. There was a project that provided a Hikvision Webcamera development package for a variety of development languages, including C#, Mengmeng, Java, and Python, but there was no mention of a specific connection with Nvidia in terms of development packages. Therefore, based on the available information, it could only be known that Hikvision used Nvidia's CPU and other resources in its own products. There was no more information about the direct connection between the Hikvision camera development kit and Nvidia. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Does an ordinary infrared camera have an audio interface? How do I connect it?
Whether an ordinary camera has an audio interface depends on the specific model. Some cameras that support external audio will have an audio interface at the tail line. The tail line label means that the AUDIO input interface is the audio input interface, and the AUDIO output interface is the audio output interface. As for the connection method of the external pickup device, after the external pickup device was connected, the camera audio option must be selected as "LineIn". Microphones generally converted the fluctuating pressure waves in the air into fluctuating electrical signals for output, and the sound quality was worse than that of pickups. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>