Walking stick for visually impaired person |
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IPC classes for russian patent Walking stick for visually impaired person (RU 2473324):
 Method of blind person orientation and device for implementing it / 2451501
Invention refers to orientation systems and may be used in orientation systems for blind and visually impaired people. A method consists in the fact that a walking stick of a blind person is provided with a fork wheel and a GPS receiver wherein blind person's root data are preset; current position data are worked out, a mismatch signal of the current and preset position data is determined, and the walking stick is rolled in front. Besides, the walking stick is equipped with a fork turn drive and a drive control unit, the blind person's current position and preset rout data mismatch signal is supplied onto the drive control unit to follow the walking stick. A device consists of the walking stick with the fork and the wheel, comprising the mounted GPS receiver, and also provided with the fork turn drive. An output of the GPS receiver is connected with an input of the fork turn drive.
 Walker for motor rehabilitation of patients with complicated spinal injury / 2437643
Invention relates to medicine and medical technology and is intended for treatment and rehabilitation of patients with complicated spinal injury Walker for training function of standing, independent first steps and walking contains two side rectangular bearing supports with rounded corners, with crossbar, upper and medial longitudinal beams, and knee rest, fixed to medial longitudinal beams Side bearing supports are provided with lower transverse and longitudinal beams Knee rest is made with semi-circular concavities for joints support.
 Physiotherapy apparatus of blind patients / 2387439
Physiotherapy apparatus for blind patients by training of walking is constructed of parallel bars with an armchair additionally fixed therein; each pole of the bars has an individual tactile perceptible surface pattern, while the flanges limit the range of admissible independent longitudinal motion of the patient in the bars.
 Combined physiotherapy apparatus for infantile cerebral paralysis / 2387438
Combined physiotherapy apparatus for infantile cerebral paralysis by training of walking is designed as a portable unwheeled playpen. On a covering of the playpen, there is a swing board additionally resting on a round-head hinge and used to train and develop vestibular vestibular skills while standing and walking.
 Physiotherapeutic jacket for learning to crawl / 2387437
Physiotherapeutic jacket for learning to crawl comprises two shoulder pads each of which has a rigid aliform curved safety bar. The safety bars are curved so that while the patient being in knee-hand position, their support ends are respectively to the left and to the right of the patient's body, near to the bearing surface to crawl without touching it.
 Support walking stick for diabled persons / 2386429
Invention refers to medicine, namely to physiotherapy, and can be used, e.g. in walking training and/or rehabilitation of the patients with diagnosed infantile cerebral paralysis. The support walking stick for disabled persons with diagnosed infantile cerebral paralysis or for walking motor shaping within physiotherapy and/or rehabilitations of the patients with diagnosed infantile cerebral paralysis contains a case with a widened foot. The widened foot has a rounded end face and an external downward-projecting round edge.
 Infrared radar for people with weak sight / 2359287
Invention refers to devices used for warning a person with weak sight against approaching an obstacle, and for assessing the distance thereto. Into infrared radar for people with weak sight there additionally introduced is a switch, the first memory register, in-series connected the second memory register, the second digital-to-analogue converter, the second controllable audio frequency generator and the second headphone, and pulse counter is made in the form of reversible pulse counter. Frequency divider output is simultaneously connected to input of T-type flip-flop, control input of reversible pulse counter and control input of switch. True output of T-type flip-flop is connected to input of left-handed infrared source, and inverted output of T-type flip-flop is connected to input of right-handed infrared source. Output of pulse generator is parallel connected to frequency divider input, inverting input of reversible pulse counter to controllable input of linear instrument with charge coupling. Output of limiting amplifier is connected via the switch to control input of the first memory register and control input of the second memory register. Output of reversible pulse counter is connected simultaneously to data inputs of the first and the second memory registers. Output of the first memory register is connected to the first digital-to-analogue converter connected via the first controllable frequency generator to the first headphone.
 Cane for sight-impaired persons / 2357720
Invention concerns medical devices for sight-impaired persons. Cane for sight-impaired persons includes white bar with holding handle. Handle features oval cross-section and can be fixated at convenient angle to bar by screw clamp. The other end of bar carries rigidly fixated cross-bar with axles at its ends carrying loosely attached wheels, and prop with two mobile conical flexible metal discs and spring between them. Discs can collide.
 Cane for sight-disabled person / 2352317
Invention concerns medical equipment, in particular devices for orientation blind in surrounding space, and can be used at independent movement blind in non determined situation, and also in extreme situations when blind urgent medical aid is required. The cane represents a stick with the handle with a receiver-radiator, established on the cane with the possibility of change of an angle of an inclination to a stick axis in planes of symmetry of a cane, the block of processing of the information, the power supply and an annunciator. The receiver-radiator it is supplied by an agent of an operational control of an angle of its inclination to an axis of the stick in the course of movement of the user. In addition there is a transmitter with the radiating aerial, an including button, the pendular switch, the relay and the receiver with the catching aerial. The transmitter is executed in the form of consistently included a setting high-frequency generator, the phase manipulator which second input is bridged to an exit of the generator of pseudo-random series, and the power amplifier, which exit the receiver - in the form of consistently connected to the catching aerial of the amplifier of high frequency, a line of a delay and the phase detector which second input is bridged to an exit of the amplifier of high frequency is connected to the radiating aerial, and, and the exit is connected to the block of registration and an alarm signal annunciator.
 Device for equilibrium restoration with cerebellar ataxia / 2328261
Device for equilibrium restoration with cerebellar ataxia comprises shoes fixed on ellipse-shaped support platform. By ends platform is furnished with fixed angles with mounted rigid metallic rods which are fixed with opposite ends to metallic collar, fastened at a height of upper leg one-third with retainer and holes in upper part of rigid metallic rods.
Method of treating resistant forms of open-angled glaucoma / 2463029
Invention relates to ophthalmology and is intended for treatment of resistant forms of open-angled glaucoma. Applications with formation of microcanals at equal distance from each other are applied in sclera in projection of ciliary body on entire circumference. Contact impact of erbium laser radiation with wavelength 1.56 mcm in quasi-continuous generation mode 200/200 mcs is used. Power of impact is 0.75 W, exposure being 4 s per each application. Impact is repeated after 2-3 months in case of further increase of intraocular pressure.
Method of laser treatment of primary open-angle glaucoma / 2457816
Claimed method relates to medicine, namely to ophthalmology, and can be used for treatment of primary open-angle glaucoma of eye. Trabecular gauze in angle of anterior chamber at the level of Schlemm's canal in lower segment of trabecular gauze is subjected to exposure to laser radiation with wavelength 810 nm. Laser impact is performed in form of continuous laser pulses with exposure 500-1000 ms, power 900-2000 mW, spot diameter 200-300 mcm on circumference arc 270°. Total number of pulses is 99-150. Impact is performed in two steps with 5-7 day interval on circumference arc 135° during each step. Application of laser pulses is performed in such a way that spot area from the previous pulse covers by 1/3 spot area from the following pulse.
Method of blind person orientation and device for implementing it / 2451501
Invention refers to orientation systems and may be used in orientation systems for blind and visually impaired people. A method consists in the fact that a walking stick of a blind person is provided with a fork wheel and a GPS receiver wherein blind person's root data are preset; current position data are worked out, a mismatch signal of the current and preset position data is determined, and the walking stick is rolled in front. Besides, the walking stick is equipped with a fork turn drive and a drive control unit, the blind person's current position and preset rout data mismatch signal is supplied onto the drive control unit to follow the walking stick. A device consists of the walking stick with the fork and the wheel, comprising the mounted GPS receiver, and also provided with the fork turn drive. An output of the GPS receiver is connected with an input of the fork turn drive.
Method of prevention and treatment of acquired myopia, complicated by computer visual syndrome / 2449765
Invention relates to medicine, namely to ophthalmology, and can be used in prevention and treatment of acquired myopia, complicated by computer visual syndrome. Into frame installed are positive and negative spherical lenses. Training starts with positive spherical lens with power (+) 0.25 diopters, which is replaced with spherical lens (-) 0.5 diopters. After that, positive and negative spherical lenses are alternated, with step-by-step increase of power of positive spherical lenses with step (+) 0.25 diopters, and optic power of negative lenses - with step 0.5 diopters. Maximal power of positive spherical lenses reaches (+) 2.0 diopters, power of negative spherical lenses reaches (-) 4.0 diopters. Time of each lens exposition constitutes 30-45 sec. Trainings are performed on an outpatient basis.
 Method of space orientation capability assessment for ophthalmologically disabled persons / 2371153
Invention concerns medicine, particularly social medical examination for eye diseases, and can be applied in quantitative assessment of spatial orientation capability of ophthalmologically disabled persons. Patient moves around room with sound sources hung on walls and activated in random order, finds the sources and switches them off. Spatial orientation is assessed by the formula:
Infrared radar for people with weak sight / 2359287
Invention refers to devices used for warning a person with weak sight against approaching an obstacle, and for assessing the distance thereto. Into infrared radar for people with weak sight there additionally introduced is a switch, the first memory register, in-series connected the second memory register, the second digital-to-analogue converter, the second controllable audio frequency generator and the second headphone, and pulse counter is made in the form of reversible pulse counter. Frequency divider output is simultaneously connected to input of T-type flip-flop, control input of reversible pulse counter and control input of switch. True output of T-type flip-flop is connected to input of left-handed infrared source, and inverted output of T-type flip-flop is connected to input of right-handed infrared source. Output of pulse generator is parallel connected to frequency divider input, inverting input of reversible pulse counter to controllable input of linear instrument with charge coupling. Output of limiting amplifier is connected via the switch to control input of the first memory register and control input of the second memory register. Output of reversible pulse counter is connected simultaneously to data inputs of the first and the second memory registers. Output of the first memory register is connected to the first digital-to-analogue converter connected via the first controllable frequency generator to the first headphone.
Cane for sight-disabled person / 2352317
Invention concerns medical equipment, in particular devices for orientation blind in surrounding space, and can be used at independent movement blind in non determined situation, and also in extreme situations when blind urgent medical aid is required. The cane represents a stick with the handle with a receiver-radiator, established on the cane with the possibility of change of an angle of an inclination to a stick axis in planes of symmetry of a cane, the block of processing of the information, the power supply and an annunciator. The receiver-radiator it is supplied by an agent of an operational control of an angle of its inclination to an axis of the stick in the course of movement of the user. In addition there is a transmitter with the radiating aerial, an including button, the pendular switch, the relay and the receiver with the catching aerial. The transmitter is executed in the form of consistently included a setting high-frequency generator, the phase manipulator which second input is bridged to an exit of the generator of pseudo-random series, and the power amplifier, which exit the receiver - in the form of consistently connected to the catching aerial of the amplifier of high frequency, a line of a delay and the phase detector which second input is bridged to an exit of the amplifier of high frequency is connected to the radiating aerial, and, and the exit is connected to the block of registration and an alarm signal annunciator.
 Electrical leader for blind / 2342108
Electrical leader for the blind, includes cane with bend at the lower end equipped with control block, the power supply and locators including ultrasonic heads and receivers, its handle is connected to the cable. On the band, at the lower level of the cane the ultrasonic locator and the humidity gauge are installed, on the cane there is the light with the photoresistor made with the possibility of light flashes formation providing acceleration as soon as the moving transport approaches. The control block is connected to the power supply cable, installed in the case and includes infra-red locator, a loudspeaker, control handles and also is equipped with the fixator for placement of the module connected to a cable with the control block and including infra-red locator of the top view.
 Obstacles detection device for vision disabled person / 2318481
Device can be used by blind patients for orientation in surrounding area. Device for detecting obstacles has locator connected in series with data processing unit and signal unit, and obstacles detection limited range switch. Output of switch is connected with first control input of data processing unit. Switch for selection of indication of closet or most distance of detected obstacles is introduced additionally. Output of indication selection switch is connected with second control input of data processing unit.
 Apparatus for partial substitution of speaking and hearing functions / 2312646
Apparatus has complex of devices operating in coordinated manner and connected with one another through bidirectional multiple-discharge (wireless) busbars: device for outer (wireless) interference with telephone line, mobile device for partial substitution of speaking and hearing functions, set of outer information sensors. Apparatus enables verbal communication between individuals and the people of their circle, transmitting and receiving of needed messages and commands through telephone and radio communication means.
Cane for sight-disabled person / 2352317
Invention concerns medical equipment, in particular devices for orientation blind in surrounding space, and can be used at independent movement blind in non determined situation, and also in extreme situations when blind urgent medical aid is required. The cane represents a stick with the handle with a receiver-radiator, established on the cane with the possibility of change of an angle of an inclination to a stick axis in planes of symmetry of a cane, the block of processing of the information, the power supply and an annunciator. The receiver-radiator it is supplied by an agent of an operational control of an angle of its inclination to an axis of the stick in the course of movement of the user. In addition there is a transmitter with the radiating aerial, an including button, the pendular switch, the relay and the receiver with the catching aerial. The transmitter is executed in the form of consistently included a setting high-frequency generator, the phase manipulator which second input is bridged to an exit of the generator of pseudo-random series, and the power amplifier, which exit the receiver - in the form of consistently connected to the catching aerial of the amplifier of high frequency, a line of a delay and the phase detector which second input is bridged to an exit of the amplifier of high frequency is connected to the radiating aerial, and, and the exit is connected to the block of registration and an alarm signal annunciator.
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FIELD: medicine. SUBSTANCE: claimed stick relates to medical equipment, in particular to devices for blind people orientation in surrounding space, and can be used in independent movement of a blind person. Walking stick contains stick with handle, in which placed are: receiving emitter, installed on walking stick with possibility of changing angle of inclination to stick axis in the plane of walking stick symmetry, unit of information processing, power source, signaler, transmitter with antenna, switching on button, pendulum switch, relay and receiver with antenna. Transmitter is made in form of successively connected setting high-frequency generator, phase manipulator, whose second inlet is connected with outlet of pseudorandom succession, and power amplifier, whose outlet is connected to transmitting antenna. Receiver is made in form of registration unit, signalisation unit and successively connected receiving antenna, high-frequency amplifier and delay line. In addition, receiver is provided with three adders, phase changer for 180° and two detectors of envelope. EFFECT: application of invention makes it possible to increase noise immunity and reliability of alarm signal transmission due to increase of dynamic range of inlet signals and ratio signal/noise in reception of weak signals. 3 dwg
We offer cane relates to medical engineering, in particular to a device for guiding the blind in the surrounding space, and can be used in independent movement of the blind in a non-deterministic environment, as well as in extreme situations, when the blind need urgent care. Known canes for the visually impaired (ed. mon. The USSR No. 957.901, 1.503.809, 1.738.283; RF patents №№2.064.789, 2.184.518, 2.280.429, 2.352.317; U.S. patent No. 3.646.949, 3.881.504, 5.197.502, 5.341.829, 5.445.175; patent EP No. 0.016.606, 1.025.828; Cognac R.S. white cane // Our life, 1997, No. 1, s and others). Known canes closest to the present invention is "a Cane for the visually impaired" (patent RF №2.353.317, AN 3/06, 2007), which is selected as a prototype. Famous cane for the visually impaired contains a stick with a handle, as well as associated electrical circuit priemysel, the processing unit and the detector. Priemysel installed in the sticks with the possibility of changing the angle of inclination to the axis of the poles in the plane of symmetry, canes and provided with means operative to control the angle of motion of the user. In extreme situations is transmitted over the air to alert the rescuers, doctors or relatives with receivers. The receiver includes a phase detector consisting of a multiplier and a low pass filter. The disadvantage of a cane for the visually impaired is the existence of a multiplier having a small dynamic range input signal bandwidth and a small slope, which degrades the signal-to-noise ratio when the signal levels comparable to the noise level of the receiver. In addition, the presence of products of multiplication (higher order harmonics) reduces the efficiency of the receiver and requires the installation of filters that produce useful information. All of this ultimately leads to decreased immunity and reliability of the transmission of the alarm signal rescuers, doctors or relatives with receivers. An object of the invention is to increase the noise immunity and reliability of the transmission of alarm signal to rescuers, doctors or relatives by increasing the dynamic range of the input signals and the signal-to-noise ratio when receiving weak signals. The problem is solved in that the cane for the visually impaired, containing in accordance with the closest analogue stick with the handle and interconnected electric chain priemysel mounted on sticks, with the possibility of changing the angle of inclination to the axis of the poles in the plane of symmetry of a cane, a processing unit, a power source, the detector, the transmitter with the antenna button VK is Uchenie, pendulum switch, relay and receiver with an antenna, a power source connected in series button switch, relay and pendulum switch and the transmitter through the closed relay contacts, the transmitter is designed in the form of cascaded oscillator, the phase manipulator, a second input connected to the output of a pseudorandom sequence generator and power amplifier, the output of which is connected to a transmitting antenna, the receiver is made in the form of the registration unit, the alarm unit and sequentially enabled receiving antenna, amplifier, high frequency and delay lines, differs from the closest analogue of the fact that the receiver is equipped with three adders, Phaser 180°, the two envelope detectors, and the output of the delay line connected in series to the first adder, a second input connected to the output of the amplifier high frequency, the first envelope detector and the third adder, the output of which is connected to the recording unit and the alarm unit, the output of the delay line connected in series Phaser 180°, a second adder, a second input connected to the output of the amplifier high frequency, and a second envelope detector, the output of which is connected to a second input of the third adder. Figure 1 shows the General execution scheme canes contrary. Structural diagram of a special sensor built in the cane, presented in figure 2. Block diagram of the receiver shown in figure 3. The cane for the visually impaired, containing stick 1 with a handle 2 which is placed in priemysel 3, mounted on sticks, with the possibility of changing the angle of inclination to the axis 4 sticks in the plane of symmetry canes, unit 5 of the information processing, the power source 6, a detector 7, the button 13 is on, the transmitter 14 from the transmitting antenna 23, a pendulum switch, consisting of a pendulum 16 and ring 17. Axis 4 is perpendicular to the plane of symmetry of a cane. Structurally, priemysel, unit 5 of the information processing, the relay 18, the power source 6, a detector 7, the transmitter 14 and the push-pull switch (16+17) is located within the handle 2 and interrelated electrical circuit 8. Priemysel 3 is installed with the possibility of changing the angle α of inclination of its axis 9 orientation relative to the axis 10 of the symmetry of the stick 1 and arm 2, i.e. in the plane of symmetry of a cane. To premisljati 3 attached to the lever 11 management, the free end of which is placed on the side surface 12 of the handle 2. Priemysel 3 is equipped with a return spring 15, one end of which is secured to the handle 2 and the other end connected with premoistened 3. The transmitter 14 is in the form of consistently included the master oscillator 19, phase arm 21, a second input connected to the output of the generator 20 pseudo-random sequence, the amplifier 22 power and transmitting antenna 23. To the power source 6 connected in series button 13 turn on, the relay 18 and the oscillating switch 16, 17. The transmitter 14 through the closed contacts 18.1 relay 18 and the button 13 inclusion connected with the power source 6. The receiver 25 is made in the form of series-connected receiving antenna 24, amplifier 26 high frequency, the delay line 28, the first adder 31, a second input connected to the output of the amplifier 26 high frequency, the first detector 34 of the envelope, the third adder 36, the output of which is connected to the block 29 of the registration and the block 30 alarm. The output of delay line 28 connected in series, the phase shifter 32 to 180° (the phase inverter), the second adder 33, a second input connected to the output of the amplifier 26 high frequency, and the second detector 35 of the envelope, the output of which is connected to a second input of the third adder 36. Line 28 delays, adders 31, 33 and 36, the phase shifter 32 to 180°, the detectors 34 and 35 of the envelope to form the demodulator 27 QPSK signals. In General, the cane operates as follows. When positioning the free end of the lever 11 of the control on the end part 12 of the surface of the handle 2, the direction of the axis 9 in the direction of piemaisijies 3 is otnositelno axis 10 of the symmetry of the stick 1 may be promptly recorded by the user, for example, by means of the thumb acting on the lever 11 of the control. In the presence of the return spring 15, one end secured to the handle 2, and the other is connected with premoistened 3, the position of the axis 9 in the direction of piemaisijies 3 about the axis 10 of the symmetry of the stick 1 is uniquely determined, namely in the absence of effects on the lever 11 control user priemysel 3 is at the home position, predetermined by the user. When leaving the visually impaired presses the button 13 of inclusion, which is located on the end of the front part 12 of the handle 2. In case of extreme situations, for example, if a visually impaired fainted or slipped, broke his leg, felt ill and dropped the cane, the latter being in a horizontal position, Autonomous radio contact with the rescue, the nearest medical centre or relatives of the visually handicapped. It is in extreme situations, when the cane is in the horizontal position, i.e. when the visually impaired dropped the cane for some valid reason, the pendulum 16 is in contact with the metal ring 17, is placed inside the stick 1, and closes the electrical circuit of the power relay 18 from the power source 6 through the closed button 13 power-on. the barely 18 fires, closes its contacts 18.1, through which simultaneously receive power all the circuit elements of the transmitter 14 from the power source 6 (figure 2 supply circuit not shown). In this case, the master oscillator 19 generates a high frequency oscillation uc(t)=Uccos(ωct+ & Phi;c), 0≤t≤Tc, where Uc, ωcthat & Phi;c, Tc- amplitude, carrier frequency, initial phase, and the duration of high-frequency oscillations, which arrives at the first input of the phase manipulator 21. To the second input of the latter is served modulating code M(t) from the output of the generator 20 pseudo-random sequence (SRP). Moreover, the modulating code M(t) in digital form contains all the necessary information about the visually impaired, for example, surname, name, patronymic, year of birth, home address, phone number, degree of disability, etc. The output of the phase manipulator 21 is formed a complex signal with phase shift keying (QPSK) u1(t)=Uccos[ωct+ & Phi;k(t)+φc], 0≤t≤Tc, where φk(t)={0,π} - manipulated component phases, reflecting the law of phase manipulation in accordance with the modulating code M(t), and φk(t)=const when kτE<t<(k+1)τEand may change abruptly at t=kτEi.e. at the boundaries between elementary parcels (k=1, 2, ..., N-1); τEN - the length and kolichestvobyudzhetnykh parcels, of which is composed of a signal of duration Tc(Tc=N·τE). This signal, after amplification by the power amplifier 22 of the power radiated by the transmitting antenna 23 in the air, is trapped by the receiving antenna 24 of the receiver 25 through the amplifier 26 high frequency simultaneously fed to the input of delay line 28 and to the first input of the first 31 and second 33 adders, the second inputs of which served the same QPSK signal u1(t) from the output line 28 of the delay, the delayed time τCequal duration τEelementary parcels (τC=τE). And to the second input of the second adder 33 FMN complex signal u1(t) is shifted in phase by 180° relative to the first adder 31. Consequently, the first 31 and second 33 adders do nezagarionnyje and detained for the duration τEelementary parcels QPSK signals. In these adders is the sum nezadelannyh and detainees QPSK signals in-phase and anti-phase, i.e. in one of the adders QPSK signals are formed, and on the other are subtracted. In case of equality of the amplitudes of the delayed and nesuderinama QPSK signals at the output of the first 31 and second 33 adders voltage or doubled or become equal to zero, i.e. there is a replacement phase relation between the symbols of the modulation code M(t) amplitude. With outputs is, I can pay tithing 31 and second 33 adders voltage received at the inputs of the detectors 34 and 35 of the envelope opposite polarity, respectively. Proyektirovaniye signals are fed to two inputs of the third adder 36. Due to the fact that the signals spaced in time and have different polarity, the output of the third adder 36 is formed by a differential signal. A positive signal corresponds to the phase difference detained and nezadelannyh elementary parcels, zero, and negative, the phase difference is 180°. The circuit consisting of the detectors 34, 35 of the envelope and the third adder 36, works as a sampling scheme to the maximum. It does not degrade the signal-to-noise ratio at the output of the third adder 36 as one of the envelope detectors, such as 34, is "locked" signal of the other detector 35 of the envelope. Video un(t)=UnPFk(t), 0≤t≤Tc, proportional to the modulating code M(t), the output of the third adder 36 is fixed block 29 registration and includes a detector 30 which produces an alarm (audible or visual). The receiver 25 can be equipped with rescue services, medical centers and relatives of the visually handicapped. Complex FMN-alarm emitted by a cane for the visually impaired, can be adopted and mobile phones, which are equipped with stakeholders. When returning home the visually impaired re-presses the button 13 on and disables the transmitter 14 is tons of power source 6 in order to avoid false alarms, when the cane may take for some reason the horizontal position. Button 13 enable structurally designed in such a way that for each odd its narimani she closes the contacts, and at every even - opens. We offer cane for the visually impaired provides transmission via radio alarm responders, doctors or relatives in case of emergency. At the same time as the alarm is used FMN complex signal that contains necessary information about the visually impaired, for example, surname, name, patronymic, year of birth, home address, phone number, degree of disability, etc. Complex FMN-signals open a wide variety of technique of transmission of alarm messages. They allow you to apply a new type selection - structural selection. This means that it is possible to separate the signals. Operating in the same frequency band and at the same time. Thus, the proposed cane for the visually impaired in comparison with the prototype and other technical solutions for a similar purpose provides increased robustness and reliability of the transmission of alarm signal to rescuers, doctors or relatives. This is achieved by increasing the dynamic range of the input signals and the relationship C is the channel/noise when receiving weak signals. To highlight the analog-modulated code from the received QPSK signal demodulator is used, free from the phenomenon of "reverse". Adders, made, for example, resistors, almost businessone, the time constant of the envelope detectors can be made very small. In addition, the absence of Raman components of higher orders, which occur at multiplication, can improve the technical characteristics of the proposed canes for the visually impaired. The cane for the visually impaired, containing a stick with a handle hosting priemysel mounted on sticks, with the possibility of changing the angle of inclination to the axis of the poles in the plane of symmetry of a cane, a processing unit, a power source, the detector, the transmitter with the antenna, the power button, the push-pull switch, relay and receiver with an antenna, a power source connected in series button switch, relay and pendulum switch and the transmitter through the closed relay contacts, the transmitter is designed in the form of series-connected sets of high-frequency generator, a phase manipulator, a second input connected to the output of a pseudorandom sequence generator and power amplifier, the output of which is connected to a transmitting antenna, the receiver is made in the form of a block is registracii, the alarm unit and sequentially enabled the receiving antenna, the amplifier's high frequency and delay line, wherein the receiver is equipped with three adders, Phaser 180°, the two envelope detectors, and the output of the delay line connected in series to the first adder, a second input connected to the output of the amplifier high frequency, the first envelope detector and the third adder, the output of which is connected to the recording unit and the alarm unit, the output of the delay line connected in series Phaser 180°, a second adder, a second input connected to the output of the amplifier high frequency, and a second envelope detector, the output of which is connected to a second input of the third adder.
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