RU188146U1 - Device for preventing emergencies in case of cardiac abnormalities or falling asleep driver - Google Patents

Abstract

The claimed device relates to the field of ensuring vehicle safety and can be used in automatic control systems of the driver’s condition of mobile vehicles and controlling engine mechanisms to prevent accidents. The technical task of the utility model is to expand the functionality of the device and increase the reliability of the transmission of alarm notification of an emergency to the emergency service by using a second radio installed in the emergency service and complex signals with phase shift keying. 2 s.p. f-ly; 4 ill.

Description

The proposed device relates to the field of ensuring vehicle safety and can be used in automatic control systems of the driver’s condition of mobile vehicles and controlling engine mechanisms to prevent accidents.

Known devices for monitoring the functioning of the state of the human operator (ed. Certificate of the USSR No. 1.301.376, 1.540.800, 1.725.828, 1.814.538; RF patents No. 2.072.864, 2.181.258, 2.218.075, 2.342.901 , 2.458.626; utility model patents No. 56.153, 85.863, 93.248; US patents No. 3.616.790, 4.231.374, 5.002.064; Frolov MV Control of the functional state of a human operator.- M .: Nauka, 1987. - S. 40-42; Dikarev V.I. Safety, protection and salvation of a person. - SPb., 2007. - S. 468-508).

Of the known devices, the closest to the proposed device is the "Device for preventing emergencies in case of cardiac abnormalities or falling asleep driver" (utility model patent No. 85.863, B60K 28/06, 2009), which is selected as a prototype.

The disadvantage of this device is the inability to transmit alarm notification of an emergency to the emergency service and relatives, which can lead to untimely medical assistance to the driver and the occurrence of irreversible violations of the functions of the cardiovascular system.

The technical task of the utility model is to expand the functionality of the device and increase the reliability of the transmission of alarm notification of an emergency to the emergency service by using a second radio installed in the emergency service and complex signals with phase shift keying.

The technical problem of the utility model is achieved in that a device for preventing emergencies in case of cardiac impairment or falling asleep for the driver, comprising, in accordance with the prototype, a signal processing unit connected to a polarized relay coil, the second coil of which is electrically connected through the switch to the ignition switch terminal and with an anchor of a polarized relay, which closes the first contact of the polarized relay with the distribution switch, the second contact of the polarized relay is electrically is one with the sound alarm unit and with the brake light, a heart rate monitor that is designed to be mounted on the driver’s wrist with a bracelet, while the heart rate monitor includes a housing inside which there is a sensor for measuring the heart rate connected to a radio transmitter that is connected via a radio channel with a first radio receiver integrated in the signal processing unit, characterized in that it is equipped with a second radio receiver installed in the emergency service, and the radio transmitter complete in the form of a series-connected receiving antenna, GPS-receiver, shaper of the total modeling code, the second input of which is connected to the output of the code generator, and the third input through the frequency-to-digital code converter is connected to the output of the sensor for measuring the pulse frequency, phase manipulator, the second input which is connected to the output of the master oscillator, power amplifier and transmitting antenna, each radio receiver is made in the form of a series-connected receiving antenna, high-frequency amplifier, second the first multiplier, the second input of which is connected to the output of the low-pass filter, the narrow-band filter, the first multiplier, the second input of which is connected to the output of the high-frequency amplifier and the low-pass filter, while the low-pass filter of the first radio receiver is connected to the input of the signal processing unit, and the low-pass filter the frequency of the second radio is connected to the input of the registration and analysis unit.

The block diagram of the device for preventing emergencies in case of cardiac impairment or falling asleep of the driver is shown in FIG. 1. The block diagram of the radio transmitter is shown in FIG. 2. The block diagram of the first radio receiver is shown in FIG. 3. The block diagram of the second radio receiver is shown in FIG. four.

The device for preventing emergencies in case of cardiac abnormalities or the driver falls asleep is equipped with a heart rate monitor 1, which is attached to the driver’s wrist with a bracelet 2. Heart rate monitor 1 includes a housing 3, inside which a sensor 4 is installed, for measuring the heart rate. The sensor 4 is connected to a radio transmitter 5, which is connected to the first radio receiver 6 via a radio channel 7, integrated in the signal processing unit 8, and to a second radio receiver 35 installed in the emergency service.

The radio transmitter 5 is made in the form of a series-connected receiving antenna 20, a receiver 21 GPS signals, a driver 24 of the total modeling code, the second input of which is connected to the output of the generator 22 code, and the third input through the converter 23 frequency-digital input is connected to the output of the sensor 4 for measurement pulse rate, phase manipulator 26, the second input of which is connected to the output of the master oscillator 25, power amplifier 27 and transmitting antenna 28.

The first radio receiver 6 is made in the form of a series-connected receiving antenna 29, a high-frequency amplifier 30, a second multiplier 32, the second input of which is connected to the output of a low-pass filter 33, a narrow-band filter 34, and a first multiplier 31, the second input of which is connected to the output of a high-frequency amplifier 30 , a low-pass filter 33 and a signal processing unit 8.

The second radio receiver 35 is made in the form of a series-connected receiving antenna 36, a high-frequency amplifier 37, a second multiplier 39, the second input of which is connected to the output of a low-pass filter 40, a narrow-band filter 41, and a first multiplier 38, the second input of which is connected to the output of a high-frequency amplifier 37 , a low-pass filter 40 and a recording and analysis unit 42.

A device for preventing emergencies in violation of cardiac activity or falling asleep driver works as follows.

Before starting the movement of the vehicle, the heart rate monitor 1 using a bracelet 2 is fixed on the wrist of the driver. The sensor 4 for measuring the heart rate, installed inside the housing 3, measures the heart rate of the driver of the vehicle, converts the data using a frequency-to-digital code converter 23 to a digital code M ₁ (t), which is fed to the first input of the generator 24 of the total simulation code, on whose second input from the output of the code generator 22 is a modeling code M ₂ (t), which reflects the license plate of the vehicle. From the output of the receiver 21 GPS signals to the third input of the shaper 24 of the total code receives the simulation code M ₃ (t), which determines the location of the vehicle.

Summary Modeling Code

M _Σ (t) = M ₁ (t) + M ₂ (t) + M ₃ (t)

from the output of the shaper 24 of the modeling code is fed to the first input of the phase manipulator 26, to the second input of which harmonic oscillation is output from the output of the master oscillator 25

U _c (t) = V _c * cos (ω _c t + ϕ _s ), 0≤t≤T _s ,

where V _c , ω _с , ϕ _1c T _c - amplitude, carrier frequency, initial phase and duration of harmonic oscillations.

At the output of the phase manipulator 26, a complex signal with phase shift keying (PSK) is formed

U ₁ (t) = V _c * cos (ω _c t + ϕ _k (t) + ϕ _s ), 0≤t≤T _s ,

where ϕ _k (t) = {o, π} is the manipulated phase component that displays the phase manipulation law in accordance with the total modeling code MΣ (t), and ϕ _k (t) = const for kτ _e <t <(k + 1 ) τ _e and can change abruptly at t = kτ _e , i.e. at the borders between elementary premises (k = 1,2, ... N-1);

τ _e , N - the duration and number of chips that make up a signal of duration T _s (T ₁ = τ _e × N),

which, after amplification in the power amplifier 27, enters the transmitting antenna 28, is radiated by it, is captured by the receiving antennas 29 and 36 of the first 6 and second 35 radio receivers, and through the amplifiers 30 and 37 of the high frequency it enters the first inputs of the multipliers 31 and 32, 38 and 39 .

The second input of the multiplier 31 (38) is supplied with a reference voltage

U ₀ (t) = V ₀ cos (ω _c t + ϕ _s ), 0≤t≤T _s ,

from the output of narrow-band filters 34 (41). The output of the multiplier 31 (38) produces a total voltage

U _Σ (t) = V _H cosϕ _k (t) + V _H cos [2ω _c t + ϕ _k (t) + 2ϕ _c ],

Where

from which low-frequency voltage is allocated by low-pass filters 33 (40)

U _H (t) = V _H cosϕ _k (t), 0≤t≤T _s ,

which is fed to the input of signal processing unit 8 (registration and analysis unit 42).

The low-frequency voltage U _H (t) from the output of the low-pass filter 33 (40) simultaneously enters the second input of the multiplier 32 (39). The output of the latter forms a voltage

U ₀ (t) = V ₁ cos (ω _c t + ϕ _s ) + V ₁ cos [ω _c t + 2ϕ _k (t) + ϕ _c ] = 2V ₁ cos (ω _c t + ϕ _s ) = V ₁ cos (ω _c t + ϕ _c ) = V ₀ cos (ω _c t + ϕ _c ),

; 2V₁=V₀,Where

; 2V ₁ = V ₀ ,

which is allocated by a narrow-band filter 34 (41), is used as a reference voltage and is fed to the second input of the multiplier 31 (38).

Block 8 signal processing analyzes the low-frequency voltage U _H (t). If the pulse rate deviated from the normal value, which indicates the occurrence of drowsiness and wake-up states or cardiac abnormalities in the vehicle driver, then the signal processing unit 8 supplies a signal to the coil 10 of the polarized relay, from it to the coil 11 of the polarized relay 9, which enables the circuit breaker to turn on 12, followed by switching the armature 14 of the polarized relay from the first terminal 15 of the polarized relay to the second terminal 16 of the polarized relay 9, breaking the current circuit on the lock mark ignition 13, to the interrupter - distributor 17. In this case, current is supplied to the audible alarm unit 18 and the brake light signal 19. As a result of the operation of the proposed device, the vehicle stops and the next vehicles are notified.

Registration and analysis of the low-frequency voltage U _H (t) in the registration and analysis unit 42 ensures the determination of the emergency situation with the driver, the license plate and the location of the vehicle, which significantly increases the likelihood of timely assistance to the driver by the emergency service.

Thus, the proposed device in comparison with the prototype and other technical solutions for a similar purpose provides increased reliability of the transmission of alarm notification of an emergency to the emergency service. This is achieved by using a second radio installed in the emergency service, and complex signals with phase shift keying, which allows you to determine the emergency situation with the driver, license plate and vehicle location.

Complex signals with phase shift keying have high noise immunity, energy and structural secrecy.

The energy secrecy of these signals is due to their high compressibility in time and spectrum with optimal processing, which reduces the instantaneous radiated power. As a result, a complex PSK signal at the receiving point may be masked by noise and interference. Moreover, the energy of a complex QPSK signal is by no means small; it is simply distributed over the time-domain region so that at each point of this region the signal power is less than the power of noise and interference.

The structural secrecy of complex PSK signals is caused by a wide variety of their forms and significant ranges of parameter values, which makes it difficult to optimize or quasi-optimal processing of complex PSK signals of an a priori unknown structure in order to increase reception sensitivity.

Complex QPSK signals open up new possibilities in the technique of transmitting discrete information over long distances. They allow you to apply a promising type of selection - structural selection. This in practice means that there is a new opportunity to separate signals operating in the same frequency band and at the same time intervals, which leads to higher reliability compared to the prototype, and also significantly extends the functionality of the claimed devices.

Claims (4)

1. A device for preventing an emergency in case of cardiac abnormalities or falling asleep of the driver, made in the form of a heart rate monitor, while a sensor for measuring the heart rate is installed inside the heart rate monitor housing, the sensor is connected to a radio transmitter, the radio transmitter is made in the form of a receiving antenna, GPS receiver - signals , a shaper of the total modeling code, the second input of which is connected to the output of the code generator, and the third input through the frequency-digital converter is connected to the output ohm sensor for measuring the heart rate, phase manipulator, the second input of which is connected to the output of the master oscillator, power amplifier and transmitting antenna, while the heart rate monitor is configured to connect via radio channel to the first radio receiver integrated in the signal processing unit, and to the second radio receiver installed in emergency service. 2. The device according to claim 1, characterized in that the signal processing unit is connected to the first coil of the polarized relay, the second coil of which is connected through an switch electrically to the terminal of the ignition switch and the armature of the polarized relay, which closes the first contact of the polarized relay with the distribution switch, the second contact of the polarized relay is electrically connected to the sound alarm unit and to the brake light. 3. The device according to claim 1, characterized in that each radio receiver is made in the form of a series-connected receiving antenna, a high-frequency amplifier, a second multiplier, the second input of which is connected to the output of a low-pass filter, narrow-band a filter, a first multiplier, the second input of which is connected to the output of a high-frequency amplifier, and a low-pass filter, while the low-pass filter of the first radio receiver is connected to the input of the signal processing unit, and the low-pass filter of the second radio receiver is connected to the input of the registration and analysis unit.

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