High reliability and wide voltage design
The Hikvision DS-MP7500-K2 vehicle-mounted intelligent department standard all-in-one computer (hereinafter referred to as the Hikvision vehicle-mounted all-in-one computer) has a size of 178mm (width) × 166mm (depth) × 50mm (height), and a front panel size of 188mm ( W) × 60(H) mm, weight 1.51kg (excluding hard disk and SD card), suitable for working temperature -30℃ - +70℃, working humidity 10% - 95%, support wide-width power input (DC +9 ~ +36V), meeting the electrical characteristics requirements of "two passengers and one danger" vehicles. In addition, the built-in lithium battery has a power-off protection function, which can maintain the location report and ensure the integrity of key data in the event of a sudden power failure.
The all-in-one machine has 1 USB 2.0 Type A interface and 1 RS232 interface in front, and the front panel includes a feature-rich LCD screen, which can configure parameters and display the status of the device. At the same time, the rear interface is rich, including USB 2.0, RS232 port, RS422, RS485 port, alarm input/output port, and 1 LAN network port with a fixed buckle design.
The all-in-one machine can have a built-in 2.5-inch hard disk and 2 SD cards. The hard disk adopts a professional anti-vibration vehicle design and supports 2T capacity access. A single SD card supports 256G capacity, and a single hard disk can support 380 hours of continuous video recording. In addition, the all-in-one machine also has a built-in MIC and speaker, which can realize the function of voice intercom; it has rich expandable interfaces and supports the access of peripheral devices such as printers, smart display terminals, and fireproof storage boxes; it complies with a number of national standard protocols and meets labeling requirements.
Designed for in-vehicle feature rich
Hikvision car all-in-one supports 6-channel analog audio and video signal input, the analog channel supports up to 720P encoding, and supports 6-channel video recording, preview, and storage at the same time. It can realize 1-way driving behavior analysis and 5-way 720P high-definition video, covering the front of the car, the driver (plus the passenger door), the carriage (2 probes), reversing, and driving behavior, fully satisfying the operation of passenger shuttles, tourist buses, school buses, etc. Video surveillance needs of vehicles.
The all-in-one machine has built-in high-sensitivity Beidou and GPS dual-mode positioning modules, driver card swiping modules, 4G full Netcom modules, etc., with functions such as precise positioning tracking, driver card swiping records and wireless communication, and optional Wi-Fi modules. Driving information collection interface, can collect vehicle braking, high beam, low beam, left turn, right turn, pulse speed and other information, built-in G-sensor, can collect vehicle acceleration information, support CAN bus collection, overspeed alarm and other functions. In other words, the all-in-one machine is full of functions.
4G transmission satellite positioning real-time tracking of vehicles
Hikvision vehicle-mounted all-in-one terminal is a vehicle-mounted intelligent terminal that integrates video monitoring, driving record, Beidou GPS dual-mode positioning, card printing, and driving behavior analysis functions. It has rich functions and strong scalability. It adopts a new generation of audio and video dedicated high-speed processor and embedded operating system, built-in deep learning chip, combined with H.264 video compression, satellite positioning, gyroscope, CAN, 4G network and other technologies, can realize audio and video recording, car driving information Recording, wireless uploading and on-site printing provide vehicle operating companies and traffic management departments with rich driving data, audio and video images, and facilitate more precise management of vehicles and drivers.
According to user needs, the all-in-one machine can be connected to the background management center in real time, and the vehicle status can be viewed through the platform, such as vehicle location tracking, vehicle video, and vehicle trajectory analysis. When using 4G transmission, the machine supports 8Mbps upload bit rate, can support single-channel video upload, or six-in-one video upload, upload resolution supports multiple formats, generally D1 is the main, frame rate can be set according to bandwidth and transmission effect . In the actual measurement, the 1076 detection platform previews 12 frames of 720P and 4CIF, and the delay is 2-3 seconds. The Babel platform has 8 frames of CIF preview, 12 frames of 4CIF preview, 12 frames of WD1 preview, and 12 frames of 720P preview. The delay is 5 From the test situation, the delay is mainly caused by the platform playback mechanism. The playback mechanism of the Babel platform is to cache for 5 seconds. The format is to display a real-time image at the beginning of playback, and then start normal playback after 5 seconds. Under the normal 4G network environment, the 4G network delay time of the all-in-one machine is measured within 1-3 seconds.
The playback mode of the all-in-one machine includes local independent playback and web synchronous playback. The clarity and color effect of the measured playback video are basically the same as the real-time forwarding effect, and there is no sign of attenuation.
Intelligent analysis of on-site printing
Hikvision vehicle-mounted all-in-one computer adopts Intel + HiSilicon hardware platform, adopts the method of in-vehicle snapshot and background comparison to execute AI applications, and supports five kinds of intelligence, such as fatigue driving, face comparison, aisle detection, vision ahead, and smoking. Analyze algorithms to monitor drivers.
The built-in deep learning algorithm of the all-in-one machine judges whether it is fatigue driving according to the number of times the driver blinks his eyes within a certain period of time; whether the driver is paying attention is judged by whether the driver is looking ahead; The driver drives the vehicle; by detecting whether there are people standing in the aisle of the vehicle, it is judged whether the vehicle is overloaded; and whether the driver is smoking. In the actual measurement, the all-in-one machine can quickly judge the alarms such as smoking, fatigue driving, not looking ahead, and people standing in the aisle. can also be identified accurately. It is particularly worth integrating that the fatigue detection of the all-in-one machine adopts the PERCLOS authoritative model, and at the same time combines multi-variable references such as time series logic, vehicle speed, and sensitivity adaptive adjustment to achieve optimal performance.
In the anti-interference test, the mobile phone is placed at the connector between the all-in-one machine and the camera, the signal is not interfered, and the anti-interference ability is good. In addition, the all-in-one machine has the function of a built-in printer, which supports one-click printing of vehicle driving data, which is convenient for traffic police to know the vehicle's speed in the past 15 minutes and whether there is any fatigue driving record in the past two days.
feature of product
1. Support access to 6 channels of 720P high-definition video, which can record, preview, and store 6 channels at the same time, to meet the video surveillance needs of passenger shuttles, tourist buses, school buses and other operating vehicles.
2. Comply with many national standards such as driving recorder, Ministry of Public Security, Ministry of Communications, etc., to meet the needs of labels.
3. Supports various intelligent analysis functions such as fatigue driving, face comparison, aisle detection, vision ahead, smoking, etc.
4. Support one hard disk (SSD, HDD, 2T capacity) and two high-speed SD cards (256G capacity), one hard disk can support 380 hours of continuous video recording.
5. With built-in printer function, it supports online printing of vehicle driving data.
6. Support vehicle positioning and tracking through the platform, query vehicle historical trajectory, etc.
Reviews
Hikvision DS-MP7500-K2 vehicle-mounted intelligent department standard all-in-one machine well inherits the technical advantages of Hikvision MVR in hardware design, and the structural design is reasonable and in place; and its analog access also has good advantages Old upgrade advantage. The machine integrates functions such as vehicle BD/GPS positioning, vehicle driving recorder, vehicle high-definition video recorder, and driving behavior video analysis. Compared with the past, it has two major advantages. First, it supports AI intelligent analysis function, which supports face, overload, and dangerous driving. Wait for the analysis of uncivilized driving and unreasonable riding behaviors, and use AI to prevent problems before they happen; the second is to support the printer function, which is convenient for traffic police to gain insight into the past driving records of vehicles with one click, which is conducive to tracing uncivilized behaviors such as speeding and fatigue driving.
Application-Specific Integrated Circuit refers to an integrated circuit specifically designed to perform a specific computing task. It is very common to use ASIC for mining in the field of blockchain. This article will analyze the principle of ASIC mining and why it should be anti-ASIC.
For Bitcoin, mining has gone through four stages: CPU, GPU, FPGA and ASIC. GPU is naturally suitable for parallel simple operations, so the execution of SHA256 is much higher than the CPU. FPGA is a programmable hardware, because it has a certain degree of universality, so the unit price will be relatively expensive. ASIC has a large initial design investment, but the unit price will be cheaper after mass production. Therefore, if you can determine that the market size is relatively large, the use of ASIC technology will be the most cost-effective.
This is the basic principle of ASIC.
In a nutshell, mining is running complicated calculations in the search for a specific number. Whether it`s an ASIC miner or a GPU mining rig, mining hardware must run through many calculations before finding that number. In proof of work systems like Bitcoin, the first one to find that number gets a reward - at the time of writing, 12.5 Bitcoins worth around $96,850. That reward will fall to 6.25 Bitcoins in May 2020.
There are so many people and powerful computing systems trying to mine Bitcoin that miner groups form to find that number and share the profit. Even more, the faster your hardware, the more you earn. That`s why people who can afford it opt for ASIC miners because it gives them the greatest chance of earning cryptocurrency in exchange for their investment.
Each cryptocurrency has its own cryptographic hash algorithm, and ASIC miners are designed to mine using that specific algorithm. Bitcoin ASIC miners are actually designed to calculate the SHA-256 hash algorithm. In the case of Litecoin, it uses Scrypt. That means technically they could mine any other coin that`s based on the same algorithm, though typically, people who buy ASIC hardware designed for Bitcoin mine that specific digital currency.
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