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[ Hot Focus on Chemical Machinery and Equipment Network ] On the afternoon of March 23, the first black box of the China Eastern Airlines crash was found, and it was initially determined to be a cockpit voice recorder.
It has been sent to a professional institution in Beijing for decoding.
The second black box The search area is more than 10 times larger than the core area
.
Chemical machinery and equipment network hotspots focus on chemical machinery and equipmentIt has been sent to a professional institution in Beijing for decoding.
The second black box The search area is more than 10 times larger than the core area
.
What is a black box? Why must you find them? Black boxes are one of the electronic recording devices dedicated to aircraft
.
It consists of two instruments, the cockpit voice recorder and the flight data recorder
.
All mechanical parts and electronic instruments and meters of the aircraft are equipped with sensors connected to them
.
Instrumentation Sensors.
It consists of two instruments, the cockpit voice recorder and the flight data recorder
.
All mechanical parts and electronic instruments and meters of the aircraft are equipped with sensors connected to them
.
It is understood that the shell of the black box has a very thick steel plate and many layers of thermal insulation, shock and compression protection materials, and is usually installed in a safe part of the tail of the aircraft
.
The cockpit voice recorder is installed at the rear of the cargo compartment and can record four channels of sound, namely the captain channel, the co-pilot channel, the backup channel, and the ambient sound channel.
The recording time is about two to three hours
.
The data recorder is installed at the rear of the cabin, and the recording time is about 25 hours, recording the aircraft's altitude, speed, heading and the operation of the crew and other parameters
.
.
The cockpit voice recorder is installed at the rear of the cargo compartment and can record four channels of sound, namely the captain channel, the co-pilot channel, the backup channel, and the ambient sound channel.
The recording time is about two to three hours
.
The data recorder is installed at the rear of the cabin, and the recording time is about 25 hours, recording the aircraft's altitude, speed, heading and the operation of the crew and other parameters
.
It can be said that the black box is the most important and direct evidence to determine the cause of a flight accident
.
They help us analyze the state of the aircraft, the operation of the crew and the conditions faced in the cockpit after an accident
.
The black box has special protection capabilities such as strong impact resistance, penetration resistance, high temperature fire resistance, deep sea pressure resistance, seawater immersion resistance, and corrosive liquid immersion resistance.
The recording medium has also been improved from tape to a static storage recorder that can withstand greater impact.
, similar to the memory chip in a computer, to prevent the black box from being damaged in an air crash, for subsequent analysis of the cause of the accident and to avoid similar accidents from happening again
.
.
They help us analyze the state of the aircraft, the operation of the crew and the conditions faced in the cockpit after an accident
.
The black box has special protection capabilities such as strong impact resistance, penetration resistance, high temperature fire resistance, deep sea pressure resistance, seawater immersion resistance, and corrosive liquid immersion resistance.
The recording medium has also been improved from tape to a static storage recorder that can withstand greater impact.
, similar to the memory chip in a computer, to prevent the black box from being damaged in an air crash, for subsequent analysis of the cause of the accident and to avoid similar accidents from happening again
.
The appearance of the black box is not black, but a striking orange, and the surface is also affixed with reflective signs for easy searching at night
.
The reason why it is called the black box is that when it was born, all the electronic instruments in the aircraft were placed in a black square box with the same size and shape, which has been used since then
.
.
The reason why it is called the black box is that when it was born, all the electronic instruments in the aircraft were placed in a black square box with the same size and shape, which has been used since then
.
Similar to the black box of an airplane, a car also has a "black box", the full name of which is "Automotive Event Data Recording System (EDR)".
Motor vehicles manufactured from January 1, 2022 must be equipped with an event data recording system or a dash cam that incorporates this system
.
Motor vehicles manufactured from January 1, 2022 must be equipped with an event data recording system or a dash cam that incorporates this system
.
The EDR system hardware is composed of modules such as sensors, processors, storage units, and backup power supplies, which are used to monitor and collect data, process data, save data, and ensure self-power supply capabilities.
The sensor modules are mainly MEMS sensors, which are used to detect vehicle collisions.
the threshold value
.
The sensor modules are mainly MEMS sensors, which are used to detect vehicle collisions.
the threshold value
.
The upstream of the EDR industry chain is mainly component suppliers, including suppliers of data processing and memory chip modules, sensor modules and power management modules; the midstream of the industry chain is mainly EDR product integration and assembly manufacturers, including EDR product design integration manufacturers, airbags Manufacturers and IoV terminal manufacturers; downstream of the industry chain are major OEMs
.
.
With the development of the Internet of Vehicles in recent years, the black box of the car communication layer has appeared in the car, which can not only push the car status to the car owner, but also send the car owner's instructions to the server to realize remote control
.
.
