RU2235365C1 - Method for emergency signaling about threat to private safety - Google Patents

Abstract

FIELD: technology for providing for safety of citizens, including vehicle drivers.

SUBSTANCE: according to the method, physical condition of person and level of threat to private safety are evaluated subjectively and/or by means of parameter sensors. When threat level exceeds acceptable levels, object radio-transmitting device is activated, radio signal with emergency code message is emitted, in address portion of which identification number of person being a subject to threat is present. Radio signal is received by panel radio receiver, decoded, address portion is deciphered, identification number of given person is determined and visually and/or by means of generating respective sound signals message and identification number is indicated. Besides, in case of sudden appearance of threat emergency sound message is sent by voice or whistle which is converted into electrical signal by a microphone, analog handling of said signal is performed, and then signal is converted into digital code. Then amplitude and frequency and time parameters are separated from the code, which parameters characterize sound message, parameters are compared to standard values, comparing results are handled for evaluation of level of threat to private safety and, when it exceeds acceptable limits, object radio-transmitting device is activated and an additional radio signal is put on the air with extra code message about threat.

EFFECT: higher protection of person in situations connected to appearance of threat to his/her health and life.

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Description

The invention relates to techniques for ensuring personal (personal) safety of citizens, including drivers of vehicles (TS), and is intended to generate and transmit alarms to the centralized security system in case of a threat to the security of the person and / or, if necessary, emergency medical care.

Known methods and devices for alarm, which use the so-called "panic button". This is a miniature radio transmitter, activated by pressing the control button in case of danger or if necessary, emergency call ambulance. The radio signal emitted by the "panic button" is received by the radio transmitter and, after processing and deciphering the address of the radio transmitter that emitted the radio signal, is displayed as an alarm message in the central security system. When indicating, sound and light alarms can also be used. Various technical implementation options for this method are presented, for example, in US patents No. 2001/0052848, G 08 B 21/00, 12/20/2001, US No. 6310539, G 08 B 23/00, 10/30/2001.

To increase the operating range of the "panic button", alarm radio signal transmitters are used, and if there is a telephone network, they transmit alarms via wired telephone communication channels. Such a technical solution is implemented, for example, in patent RU No. 2184395, G 08 B 25/08, 06/27/2002, according to which, in the event of a dangerous situation, the radio signal is transmitted via a personal radio signal module, the specified signal is received at intermediate points connected to telephone lines and distributed in a controlled area, convert the received radio signal into the corresponding code message and transmit it to the control point and receive messages, which determine the location of the radio signal source and in accordance with the location of the intermediate points from which messages are received.

The same class of technical solutions includes patents RU No. 2182028, B 60 R 25/10, G 08 B 25/00, 05/10/2002, RU No. 2201363, 60 R 25/10, G 08 B 25, previously obtained by the manufacturer. / 08, 03/27/2003.

A common drawback of these technical solutions is the complexity of their technical implementation, due to the need for the location on the terrain of intermediate relay points, which is associated with large economic costs and organizational difficulties.

Another significant drawback of the aforementioned technical solutions is their vulnerability to the threat of a sudden attack on a person (threatened object) - a blow from behind or “from behind a corner”, fraudulent penetration into a vehicle, and then the vehicle owner is thrown out of the passenger compartment, etc. In these cases, the threat object, as a rule, does not have time to use the "panic button".

To eliminate this drawback, along with the "panic button", sensors are used to change the physical state of the threatened object, for example, a motion sensor, a drop sensor, pressure sensors, body temperature sensors, etc.

For example, the anti-theft security systems commercially available at the applicant plant use WAIT UP® technology based on the use of a motion sensor (see, for example, the article “Step left, step right - WAIT UP®”, “12 Volts”, No. 2, 2002, "WAIT UP", "12 Volts", No. 1, 2002, patent RU No. 2160196, 60 R 25/00, 12.20.2000). The WAIT UP relay blocks the operation of the engine when the unauthorized movement of a guarded vehicle begins. The criterion for the operation of the relay is the movement of the vehicle in space, including towing and transportation in the container to another vehicle.

The displacement sensor is built directly into the relay, so the decision to lock the relay is made independently without the participation of the central control unit of the anti-theft alarm system.

Also known is the Radio Button alarm system, commercially available from Argus-Spectrum, St. Petersburg (certificate of conformity POCC.RU.OC03.B00961), which uses drop and displacement sensors.

According to the technical documentation for this radio system (SPNK.425624.001 OM dated 03/18/03), it is intended for the wireless transmission of alarm notifications. Scope - centralized or autonomous protection of objects and people. An alarm signal is generated when a button located on the radio transmitter is pressed, as well as when the drop sensor is triggered (option 1), or when the alarm loop at the guarded object is violated (option 2), or when the location of the radio transmitter is changed (option "radio dolls"). The alarm notification received by the radio is displayed in the processing and display unit and in the remote indicator unit, turns on the audible signal, and can also be transmitted to the central monitoring station (PTs) and to a personal computer.

The "radio button" provides (in three possible options):

- formation of an alarm notification when a button is pressed;

- the formation of an alarm notification when the transmitter housing is in an inclined position (at an angle of more than 45 ° or more than 70 ° - depending on the plane of inclination) for a time interval of more than 15 s, and before each transmission of the alarm notification, the radio transmitter gives a warning sound signal;

- the formation of an alarm notification when a sharp change in location or when the radio transmitter is tilted at an angle of at least 10 ° and other possibilities.

The radio button alarm system "Radio button", technical information of which is presented on the website www.argus-spectr.ru, is selected as a prototype of the present invention.

The subject of the present invention is a method for alarming a threat to personal safety, according to which the physical condition of the threatened object and the degree of threat to its personal security are evaluated subjectively and / or using the parameters of the physical condition of the threatened object, in particular, the position of the body in space is measured, and in those cases when the degree of threat to personal safety exceeds the permissible limits, they are activated by means of a button or automatically according to information from physical state sensors In case of a threat, an object radio transmitting device broadcasts a radio signal containing an alarm code message, the address part of which contains an individual identification number of the threat object, receives the specified radio signal with a radio receiver, decodes, decrypts the address part of the received alarm code message, identifies the individual identification number of this object threats and visually and / or by giving the appropriate sound signals indicate an alarm code message the identification number, and in case of a sudden threat to personal safety, either by voice or by whistle, an alarm sound message is sent, which is converted into an electric signal using the microphone at the object of threat, and analogue processing of the indicated electric signal is performed to increase the signal ratio / noise, convert the processed signal into a digital code, extract stable amplitude-frequency and time parameters from it, characterizing this alarming signal a sound message, compare these parameters with the reference values of the specified parameters stored in the memory unit, process the results of the comparison to assess the degree of threat to personal safety, and when it exceeds the permissible limits, they automatically activate the object radio transmitting device and emit an additional radio signal containing personal security threat code message.

Particular features of the invention are as follows.

The analog processing of the electric signal from the microphone is carried out using an operational amplifier, the amplitude-frequency characteristic of which is consistent with the spectrum of the alarm sound message.

To assess the degree of personal safety hazard, the results of comparing the amplitude-frequency and time parameters of the alarm sound message with the reference values of the specified parameters are recorded in the memory register, multiplied by the weight coefficients stored in the memory unit, the results of these multiplications are summarized, and the result of summation is compared with the given threshold, when this fact, exceeding the specified threshold is classified as an unacceptably high degree of threat to personal security.

The objective of the present invention is to increase the degree of personal protection of the threatened object in situations associated with the sudden occurrence of a threat to his health and life, for example, during an attack "from around the corner", when a pre-infarction condition occurs, etc.

The technical result is to increase the reliability of the alarm system type "Radio button" by increasing the speed of response to a sudden threat.

The invention is illustrated in figures 1-3.

Figure 1 shows the General structural diagram of one of the possible options for building an alarm system that implements the inventive method.

The following notation is used: 1 - threat object; 2 - microphone; 3 - wearable part of the alarm system; 4 - noise reduction unit; 5 - microcontroller; 13 - object radio transmitting device; 18 - button; 19 - sensors of the parameters of the physical state of the threat object; 20 - stationary part of the alarm system; 21 - remote radio receiver; 22 - processing unit and display; 23 - block remote indicators; 24 - block sound alarm.

Figure 2 presents a possible embodiment of the microcontroller 5. The following notation is used: 6 - analog-to-digital converter (ADC); 7 - analyzer of amplitude-frequency and time parameters of an alarm sound message; 8 - control unit; 9 - memory block; 10 - block comparison; 11 - a decisive device; 12 - shaper emergency code message;

Figure 3 presents a possible embodiment of the solver 11. The following notation is used: 14 - memory register; 15 - multiplier; 16 - adder; 17 is a threshold device.

The considered alarm system consists of wearable 3 and stationary 20 parts of the alarm system.

The wearable part 3 of the alarm system is located at the person who is the object of 1 threat (sudden attack or emergency medical call). The source of the alarm sound message is the threat object 1 itself. In the event of a sudden attack (or deterioration of physical condition), the threat object 1 may voice or use the whistle to sound an alarming message. The threat object 1 is connected by a voice channel with a microphone 2, to the output of which a noise reduction unit 4 is connected. The output of the noise reduction unit 4 through the microcontroller 5 is connected to an additional (modulating) input of the object radio transmitting device 13.

A button 18 is installed on the object radio transmitting device 13. For example, the threat object 1 itself can press it.

Pressing the button 18 enables the inclusion of the object of the radio transmitting device 13. The mechanism of the button 18 is protected from accidental pressing. Another control input of the object radio transmitting device 13 is connected to the outputs of the sensors 19 of the parameters of the physical state of the threat object. In this case, the inputs of the sensors 19 of the parameters of the physical state of the threat object are connected directly to the threat object 1. The radio button above alarm system uses a drop sensor. The specified sensor is designed to turn on the object of the radio transmitting device 13 in cases where an unexpected fall, for example due to an impact, prevented the threat object 1 from pressing the button 18, and he was in a helpless horizontal position.

As sensors 19 parameters of the physical condition of the threatened object can also be used body temperature sensors, tonometers and other measuring instruments used in the provision of emergency medical care.

The introduction to the wearable part 3 of the alarm system of an additional circuit consisting of a microphone 2 connected in series, a noise canceling unit 4 and a microcontroller 5, the output of which is connected to the additional input of the object radio transmitting device 13, is a significant difference between the considered alarm system and the Radio Button system, which implements prototype method (P. Denisov "Alarm system" Radio button "for professionals", "BDI", No. 5, 1999).

Block 4 noise reduction can be made in the form of an operational amplifier, the amplitude-frequency characteristic of which is consistent with the spectrum of the alarm sound message selected by the threat object 1.

In the considered variant of building the alarm system, the microcontroller 5 contains an ADC 6, the output of which is connected to the input of the analyzer 7 of the amplitude-frequency and time parameters of the alarm sound message and to the input of the control unit 8, the output of which is connected to the first input of the memory unit 9. The output of the analyzer 7 of the amplitude-frequency and time parameters of the alarm sound message is connected to the second input of the memory unit 9 and to the first input of the comparison unit 10. The output of the comparison unit 10 is connected to the first input of the decider 11, the output of which is connected to the input of the emergency code generator 12. The first output of the memory unit 9 is connected to the second input of the comparison unit 10, and the second output is connected to the second input of the resolving device 11.

Microphone 2 with noise canceling unit 4 is part of the REEF HF-100 car kit (hands-free), commercially available by the applicant company (certificate of conformity No. РОСС RU.ME30.B.01281).

ADC 6, an analyzer 7 of the amplitude-frequency and time parameters of an alarm sound message, a control unit 8, a memory unit 9, a comparison unit 10, a solver 11 and an emergency code message generator 12 are made on a single microcontroller board 5. In this system, it can be used, for example, the highly economical motherboard of a 16-bit microcontroller MSP430F149 manufactured by Texas Instruments (USA), which is a part of the commercial recognition device RZ-01 (see, for example, 12 Volt, No. 9, 2003, .4). Technical information on the specified microcontroller is given on the website of the specified company (www.ti.com).

The deciding device 11 (Fig. 3) can be made in the form of series-connected memory registers 14, the input of which is the first input of the deciding device 11, the multiplier 15, the second input of which is the second input of the deciding device 11, the adder 16 and the threshold device 17, the output of which is the output of the microcontroller 5. All of these elements are commercially available products of the electronics industry.

The stationary part 20 of the alarm system has the same construction scheme as the aforementioned Radio Button system. It includes a remote control radio receiver 21 having outputs for connection to a monitoring station, to a personal computer, and to a processing and indication unit 22, the outputs of which are connected respectively to the input of the remote indicator unit 23 and to the input of the sound alarm unit 24.

All nodes used in the system under consideration are mass-produced, most of them at the applicant enterprise. Therefore, the possibility of practical implementation of the proposed method for alarming a threat to personal safety is not in doubt.

The considered option for the technical implementation of the proposed method works as follows.

As you know, the most natural and quick reaction of any person to a sudden threat to life is a cry. In situations where people expect a sudden attack, but cannot accurately predict the moment of its occurrence, for example, law enforcement officers on duty or authorized persons (vigilantes) use a whistle to sound an alarm.

In both cases, a harsh sound produces a deterrent effect on the attacker.

A feature of the present invention is the use of this effect to activate a radio button type alarm system. The source of the alarming sound message is the threat object 1 itself, which was subjected to a sudden attack.

An alarm sound message is perceived by the microphone 2, which is part of the wearable part 3 of the alarm system. The electric signal received at the output of the microphone 2 is passed through the noise reduction unit 4, made, for example, in the form of an operational amplifier with an amplitude-frequency characteristic consistent with the spectrum of the expected alarm sound message. The objective of the noise reduction unit 4 is to increase the signal-to-noise ratio for further digital processing of the alarm sound message. The specified processing is carried out in the microcontroller 5, a possible construction of which is shown in figure 2.

In the embodiment of the microcontroller 5, shown in FIG. 2, the analog signal coming from the noise reduction unit 4 is subjected to an analog-to-digital converter in the ADC 6, after which the digital code of the alarm sound message is sent to the analyzer 7 of the amplitude-frequency and time parameters of the alarm sound message and to the control unit 8, the output of which is connected to the first input of the memory unit 9. In the analyzer 7 amplitude-frequency and time parameters of the alarm sound message, the digital code undergoes spectral conversion, for example, fast Fourier transform (see, for example, B. Gold, C. Raider "Digital signal processing", Moscow, "Soviet Radio", 1973, Ch.6), threshold processing, and other operations that allow one to determine a number of stable spectral and temporal parameters of an alarm sound message, for example, the width of the spectrum, the ratio of the amplitudes of harmonics, etc.

Adjustment (training) of the microcontroller 5 is carried out using reference audio messages, for example, loudly pronounced words, a whistle of a certain tonality, etc. To do this, the reference audio message using a microphone 2 is converted into an electrical signal, its signal-to-noise ratio is improved in the noise reduction unit 4 and converted into a sequence of digital code samples of the reference audio message using the ADC 6. Next, the analyzer 7 of the amplitude-frequency and time parameters of the alarm an audio message selects a given set of stable parameters and transfers it to the second input of the memory unit 9, in which these parameters are written as reference s amplitude and frequency and time parameters of the alarm voice message (hereinafter, for brevity, samples).

In the process of recognizing an alarm sound message, the indicated sequence of actions is repeated with the only difference being that when a signal of a recognized alarm sound message appears at the input of the ADC 6, the latter generates a request, which is sent through the control unit 8 to the first input of the memory unit 9, in which the samples are stored. Upon this request, the specified sets of samples are supplied from the memory unit 9 to the second input of the comparison unit 10, the first input of which simultaneously from the analyzer 7 of the amplitude-frequency and time parameters of the alarm sound message receives the measured values of the specified amplitude-frequency and time parameters of the recognized alarm sound message. Since various parameters can influence the result of the correct identification of the alarm sound message in different ways, the results of comparing the amplitude-frequency and time parameters of the received alarm sound message with the samples are processed in the resolver 11 and only after that are fed to the emergency code generator 12, which generates a modulating impact on the object of the radio transmitting device 13.

The solver 11 can be constructed, for example, according to the circuit shown in FIG. 3, in the form of a series-connected memory register 14, the input of which is the first input of the solver 11, the multiplier 15, the second input of which is the second input of the solver 11, the adder 16 and a threshold device 17, the output of which is the output of the microcontroller 5.

The decision-making algorithm is:

- in sequential memorization of the comparison results (in the memory register 14);

- in multiplying the stored comparison results by weighting coefficients obtained from the memory unit 9 (in the multiplier 15);

- in the summation of the obtained multiplication results (in the adder 16);

- comparing the amount received with the value of the allowable threshold (in the threshold device 17);

- in the formation, when the specified sum exceeds the allowable threshold level set in the threshold device 17, an impulse indicating the recognition of this alarm sound message has occurred;

- in resetting the adder 16 at the end of the time period for recognizing an alarm sound message.

In particular, in the serial recognizer of the sound fragment RZ-01, created at the applicant enterprise, an audible alarm message is set for a duration of 5 s. Samples for comparison and weights are stored in non-volatile memory block 9. Samples and weights can be changed by programming. As sound alarm messages, sounds with high accuracy and stability of reproduction (constant playback speed and spectral composition) are used. With the correct recognition of a given sound fragment, a negative pulse of 1 s duration appears at the output of the resolver 11, which can be applied to the emergency code generator 12 for subsequent activation of the modulator of the object radio transmitting device 13. At the same time, the button 18, which is used for manual activation of the object radio transmitting device 13 , and sensors 19 of the parameters of the physical state of the threat object that automatically activate the object radio transmitting device 13 when exceeded adannyh threshold values of physical parameters such as the predetermined angle of inclination threat object body 1 relative to the ground, remain operable.

The radio signal emitted by the object radio transmitting device 13, containing the emergency code message, is supplied to the stationary part 20 of the alarm system. Here it is received by the antenna of the radio remote control device 21 and, since it has the same format as a regular alarm code message, undergoes the same functional transformations as in the Radio Button alarm system that implements the prototype method.

So, in accordance with the description of the Radio Button system (www.argus-speetr.ru/cgi), the received code message is processed and displayed in the processing and display unit 22. During processing, it is decoded, the address part of the emergency code message is decoded, the individual identification number of the person who sent the emergency code message is determined, and the emergency code message and individual identification number are displayed: visually and / or in the remote display unit 23 or block 24 sound alarms using audible alarms. The radio remote control device 21 has outputs to a personal computer and to the monitoring station, which provides additional functionality for processing and displaying received code messages.

In the system that implements the prototype method described above, the following messages are displayed on the indicators of the processing and indication unit 22 and in the remote indicator unit 23 for each object radio transmitting device 13 registered in the system: "NORMAL", "ALARM", "SENSOR", "DISCHARGE BATTERIES OF A RADIO TRANSMITTER "," ACCIDENT OF A COMMUNICATION LINE. " In the system that implements the inventive method, the message "EMERGENCY ASSISTANCE" is additionally displayed.

In accordance with the foregoing, the proposed technical solution has novelty, usefulness and allows us to solve the problem - to increase the degree of personal protection of the threatened object in situations associated with the sudden occurrence of a threat to his health and / or life, for example, during an attack “from around the corner”, if he has a pre-infarction condition, etc.

The problem is solved by increasing the reliability of the alarm system that implements the inventive method, due to the increased response speed to a sudden threat.

Claims (3)

1. A method of alarming a threat to personal safety, according to which the physical condition of the threatened object and the degree of threat to its personal security are evaluated subjectively and / or using the parameters of the physical condition of the threatened object, in particular, they measure the position of the body in space and when the degree of personal security threat exceeds the permissible limits, is activated by means of a button or automatically, based on information from sensors of the physical condition of the threat object, an object broadcasting device In addition, they emit a radio signal containing an alarm code message in the address part of which there is an individual identification number of the threat object, receive the specified radio signal with a radio receiver, decode, decode the address part of the received alarm code message, and identify the individual identification number of this threat object both visually and / or by sending the appropriate sound signals, an alarm code message and an identification number are indicated, o characterized by the fact that in the event of a sudden threat to personal safety, a voice or a whistle is given an alarm sound message, which is converted into an electric signal using the microphone at the object of threat, analogue processing of the indicated electric signal is performed to increase the signal-to-noise ratio, the processed signal is converted to a digital code, stable amplitude-frequency and time parameters characterizing this alarming sound message are isolated from it, these parameters are compared Tracks with reference values of the specified parameters stored in the memory block process the results of the comparison to assess the degree of threat to personal security, and when it exceeds the permissible limits, they automatically activate the object radio transmitting device and emit an additional radio signal containing an emergency code message about the threat personal security. 2. The method according to claim 1, characterized in that the analog processing of the electrical signal from the microphone is carried out using an operational amplifier, the amplitude-frequency characteristic of which is consistent with the spectrum of the alarm sound message. 3. The method according to claim 1 or 2, characterized in that for assessing the degree of threat to personal safety, the results of comparing the amplitude-frequency and time parameters of the alarm sound message with the reference values of these parameters are recorded in the memory register, multiplied by weight coefficients stored in the memory unit summarize the results of these multiplications and compare the result of the summation with a given threshold, while the fact of exceeding the specified threshold is classified as an unacceptably high degree of threat to personal safety.

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