The Glonass era is approaching
According to the government’s decree “On the creation of an automated emergency response system for ERA-GLONASS accidents,” it is planned to deploy a system in Russia designed to reduce the consequences of road accidents by increasing the response speed of emergency services.
Rescue service in a hurry to help
Based on European statistics, the average response time in an accident in a modern metropolis is more than 20 minutes. For Russia, this time may be somewhat longer.
Components may vary depending on the severity of the incident, the terrain and the availability of communications, but in any case, every minute can have critical consequences.
Golden hour rule
In emergency medicine, the time from a few minutes to several hours, during which life is most likely to be saved, is called the Golden Hour.
On the graph, in a temporary chronology, three of the most common causes leading to death in accidents are depicted:
- heart failure
- respiratory arrest
- extensive bleeding
As you can see, minutes play a big role in saving lives.
System description
To implement the system, an electronic unit with a GLONASS / GPS chip must be installed in the car, which at the time of the accident will have to transmit via the cellular network channels: coordinates, information about the accident and establish voice communication between the response service and the car.
The general scheme of the system looks like this:
- At the time of an accident, information about an accident (airbag deployment, accelerometer data, etc.) and general data about the car (VIN code and user data set) are sent to the electronic unit via the vehicle’s CAN bus.
- The block determines the coordinates on the ground and there is a voice call to the reception center (PSAP). In the first few milliseconds, the minimum data set (MSD) is transmitted via the voice channel, containing: vehicle coordinates, information read by the unit from the on-board computer and / or accelerometer. After that, a speakerphone is established between the car and the emergency operator. Even if the participant in an accident is trapped in a mangled car, he will be able to speak with the operator via the speakerphone.
- In the response center, data is consolidated and supplemented according to the available databases, after which they are automatically transferred to emergency services.
- Emergency services have all the necessary information to respond as quickly as possible to an incident.
Guaranteed communication channel
Using channel 112 to transmit information will provide the ability to establish communications regardless of the coverage of a particular operator.
For guaranteed transmission of information, a voice channel is used, which is known to have the highest priority in cellular networks. For the transmission of MSD, specialized algorithms are provided that allow using different transmission speeds depending on the quality of communication.
The unit will repeat attempts to transmit MSD at different speeds until it receives a notification of reception from the server.
There are options for transferring MSD in Push and Pull mode. To re-request a data packet, you can use the Pull mode and the unit will re-transmit the information during the same voice session.
MSD involves the transfer of both mandatory parameters, such as: geographical coordinates, accident parameters, vehicle parameters, and user parameters.
Response speed
After the launch of the automatic response system, based on the experience of European countries, we can expect to reduce the response time by 40%.
The Glonass era is approaching
It wasn’t long to wait, the start time of the program was January 1, 2014.
From what moment 100% of all new cars will be necessarily equipped with blocks to ensure participation in the program - an open question.
Also discussed is the need to include in the program cars of the secondary market and cars imported from abroad.