CN203376827U - Position identification device capable of guiding people to evacuate based on audio frequency technology - Google Patents

Position identification device capable of guiding people to evacuate based on audio frequency technology Download PDF

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Publication number
CN203376827U
CN203376827U CN201320397297.0U CN201320397297U CN203376827U CN 203376827 U CN203376827 U CN 203376827U CN 201320397297 U CN201320397297 U CN 201320397297U CN 203376827 U CN203376827 U CN 203376827U
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China
Prior art keywords
circuit
position identification
identification device
sound
output control
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Expired - Lifetime
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CN201320397297.0U
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Chinese (zh)
Inventor
宋珍
于春雨
梅真硕
吴小川
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Shenyang Fire Research Institute of MEM
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Shenyang Fire Research Institute of Ministry of Public Security
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Abstract

The utility model relates to a position identification device capable of guiding people to evacuate based on an audio frequency technology. A power supply conversion circuit is connected with a CPU circuit, a sound amplification circuit, a power amplification circuit, a light emitting drive circuit and a wideband sound database storage circuit. The CPU circuit is connected with the sound amplification circuit, an output control circuit, a parameter setting circuit and the wideband sound database storage circuit. The power amplification circuit is connected with the sound amplification circuit, the output control circuit and a full frequency loudspeaker. The light emitting drive circuit is connected with the output control circuit and a light emitting diode. Based on the audio frequency technology for position identification, the position identification device helps to effectively overcome problems that a light indication position identification device is blocked by light after smoke has diffused and then safe positions cannot be identified clearly, and also helps to reduce probabilities of secondary disasters.

Description

Position identification device based on Audiotechnica guiding evacuating personnel
Technical field
The utility model belongs to fire protection linkage control technical field in safety engineering discipline, relates to a kind of evacuating personnel position identification device be mainly used under the various emergency circumstance of large public building crowded place such as megastore, stadiums, hotel, office building, conference and exhibition center.
Background technology
Be arranged at present the large public building crowded place and be the vision Warning Mark for the position identification device of evacuating personnel, i.e. light Warning Mark, as safety outlet mark lamp tool, escape stair indicating lamp etc.The outside surface of these light fixtures forms by the pattern of marker location, utilizes certain light intensity irradiation pattern that sign is shown clearly.In case of emergency, after personnel see sign, move to rapidly symbol location, then withdraw hazardous location.
Light Warning Mark based on vision has been brought into play very large effect in the evacuating personnel process, but still exists following not enough:
1, the vision Warning Mark such as safety outlet mark lamp tool, escape stair indicating lamp generally is arranged on egress door or passage top, apart from ground, certain height is arranged, after the crowded place breaking out of fire, flue gas spreads rapidly, after flue gas drops to certain altitude, can block Warning Mark, cause the penetration power of light to reduce, evacuation personnel in making in a hurry can't clearly tell the safe location sign, probably miss the safe escape position in evacuation, cause secondary disaster.
2, along with the variation of the complicated and function of large public building structure; it is complicated that evacuating personnel passage and route also are tending towards; often there will be crossroad or T-shaped road junction; although crossing has many routes of escape to select; but probably inconsistent apart from the evacuation route length of each fire exit; therefore the route of selecting at random at the place, crossing is the evacuation route of the best not necessarily, can extend Safety Evacuation Time like this, strengthens the escape risk.
3, large public building crowded place, personnel's feature complexity, for visually impaired people person, under emergency, the light Warning Mark can't play the evacuation guiding function, therefore easily causes unnecessary personnel's injury, produces severe social influence.
The utility model content
For the deficiency of current light indicating positions recognition device, the utility model provides a kind of position identification device based on Audiotechnica guiding evacuating personnel.
The technical scheme that the utility model adopted for achieving the above object is: the position identification device based on Audiotechnica guiding evacuating personnel, and power converting circuit is connected with cpu circuit, sound amplifying circuit, power amplification circuit, light emission drive circuit, wideband voice bank memory circuit; Cpu circuit is connected with sound amplifying circuit, output control circuit, parameter setting circuit, wideband voice bank memory circuit; Power amplification circuit is connected with sound amplifying circuit, output control circuit, full frequency speaker; Light emission drive circuit is connected with output control circuit, light emitting diode;
Cpu circuit: adopt arm processor, for the control position recognition device according to certain sequential sounding and luminous; Receive the digital quantity parameter signal of outer triggering signal and parameter setting circuit, call the acoustic information of wideband voice bank memory circuit, and output sound signal outputs control signals to output control circuit to the sound amplifying circuit;
Output control circuit carries out control level conversion output digital controlled signal to power amplification circuit according to control signal, and output analog quantity voltage signal is to light emission drive circuit.
Described wideband voice bank memory circuit adopts the Flash storage chip.
Described parameter setting circuit is toggle switch.
Described position identification device is a plurality of.
The utlity model has following beneficial effect and advantage:
1, the utility model is realized location recognition based on Audiotechnica, can effectively overcome light indicating positions recognition device light after flue gas diffusion and be blocked, and problem that can't clear identification safe location, reduced the probability that secondary disaster occurs.
2, can guide the evacuation route of the personnel selection the best in crossroad or T-shaped road junction, shorten Safety Evacuation Time, improve evacuation efficiency.
3, can help visually impaired people person in case of emergency to identify rapidly safe location, realize that the crew is orderly, safe, evacuate efficiently.
4, the utility model structure and to control sequential simple, circuit devcie all adopts general-purpose chip, so production technology easily realizes, and cost is low, has higher cost performance.
5. the utility model is provided with the different delay parameters that start by two adjacent position identification devices, make respectively to install the phonation time time difference at least more than 50mS, avoided can't telling the situation of nearest position, fire exit because Haas effect causes the evacuation personnel.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the installation site schematic diagram one of the utility model device;
Fig. 3 is the installation site schematic diagram two of the utility model device;
Fig. 4 is method flow diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Referring to accompanying drawing 1, a kind of position identification device based on Audiotechnica guiding evacuating personnel, it comprises power converting circuit 1, cpu circuit 2, sound amplifying circuit 3, power amplification circuit 4, output control circuit 5, light emission drive circuit 6, parameter setting circuit 7, wideband voice bank memory circuit 8, full frequency speaker 9 and light emitting diode 10.Install totally two kinds of the required input messages of normal operation, a kind of is power supply, and a kind of is trigger pip.The externally fed power supply is 2 line DC24V power supplys, and the voltage range of power supply is that between DC18-36V, device all can reliably working.The externally fed power supply inputs to power converting circuit 1, the output of power converting circuit 1 is connected to respectively cpu circuit 2, sound amplifying circuit 3, power amplification circuit 4, light emission drive circuit 6 and wideband voice bank memory circuit 8, for other circuit in installing provide the voltage of different brackets.Outer triggering signal inputs to cpu circuit 2, for the sounding installed provides trigger pip.Trigger pip can be the switching value signal, can be also digital communication information.Wideband voice bank memory circuit 8 export cpu circuit 2 to, parameter setting circuit 7 export cpu circuit 2 to, the output of cpu circuit 2 divides two-way, one tunnel exports sound amplifying circuit 3 to, sound amplifying circuit 3 export power amplification circuit 4 to, power amplification circuit 4 export full frequency speaker 9(loudspeaker to), another road exports output control circuit 5 to, output control circuit 5 output two path control signal, one road is to power amplification circuit 4, another road is to light emission drive circuit 6, and light emission drive circuit 6 exports light emitting diode 10 to.
Sound amplifying circuit 3: for light current being pressed voice signal carry out amplitude, amplify and to be converted to the strong voltage voice signal and to export power amplification circuit 4 to.
Power amplification circuit 4: be converted to the high power voice signal for the low-power voice signal is carried out to power amplification, according to the digital controlled signal of the output control circuit 5 received, carry out the output high-power voice signal to full frequency speaker 9.
Output control circuit 5: carry out control level conversion output digital controlled signal to output control circuit 5 according to control signal, output analog quantity voltage signal is to light emission drive circuit 6.Comprise sound control circuit and emission control circuit, be respectively used to the break-make of power ratio control amplifying circuit 4 and light emission drive circuit 6; The input end of sound control circuit and emission control circuit all receives the control signal of cpu circuit 2, and the output terminal of sound control circuit is connected with power amplification circuit 4, and the output terminal of emission control circuit is connected with light emission drive circuit 6.
Light emission drive circuit 6: according to the digital controlled signal of output control circuit 5, export the analog quantity voltage signal of power converting circuit 1 output to light emitting diode 10.
Parameter setting circuit 7: adopt the toggle switch circuit, the site surrounding difference of installing according to position identification device, can carry out the setting of acoustic pressure grade and sound frequency by the gear of selecting toggle switch, to adapt to the needs of various site surroundings.
Wideband voice bank memory circuit 8 adopts jumbo Flash storage chip, has stored the acoustic information of 300~16000Hz.Output control circuit 5 comprises sound control circuit and emission control circuit, adopts high-power high-frequency fast digital gauge tap.
As shown in Figure 2,3, this device is placed in take in the cavity of the fire exit sign that fire proofing is shell, and 1 loudspeaker of this device exposes to housing surface, and is fixed on sign side, fire exit; Also can adopt a plurality of loudspeakers, as 2 loudspeakers, the fire exit sign is arranged on front panel side by side with 2 loudspeakers, and fire exit indicates placed in the middle, and loudspeaker is separately positioned on both sides.
Once cpu circuit 2 receives outer triggering signal, read immediately the white noise acoustic information of wideband voice bank memory circuit 9 storages, read the parameter that parameter setting circuit 7 arranges simultaneously, export the white noise acoustic information to sound amplifying circuit 3 according to parameters, sound amplifying circuit 3 exports the voice signal after amplifying to power amplification circuit 4, after power amplification circuit 4 carries out power amplification by voice signal, exporting full frequency speaker 9 to is play, cpu circuit 2 can output control signals to output control circuit 5 simultaneously, one tunnel of output control circuit 5 exports power amplification circuit 4 to, cpu circuit 2 can be controlled full frequency speaker 9 by output control circuit 5 and be play (for example within the regular hour, acoustic information being pronounced and quiet alternate cycles) according to the break-make sequential of setting.Another road of output control circuit 5 outputs signal to light emission drive circuit 6, controls light emitting diode 10 luminous, and lamp device indicates pattern.
Referring to accompanying drawing 4, the method realizes comprising the steps:
After fire occurs, the position identification device of fire generation area receives the fire alarm trigger pip, cpu circuit 2 receives trigger pip, read the set parameter signal of parameter setting circuit 7, parameter signal comprises sound pattern parameter and starts delay parameter, call acoustic information in wideband voice bank memory circuit 9 according to parameter signal and carry out power amplification to power amplification circuit 4 after 3 voltage amplifications of sound amplifying circuit, export control signal simultaneously and trigger output control circuit 5, output control circuit 5 is by the ON/OFF of inner sound control circuit power ratio control amplifying circuit 4, and then control full frequency speaker 9 sends the voice signal of certain sequential, simultaneously, output control circuit 5 is controlled the ON/OFF of light emission drive circuit 6 by inner emission control circuit, and then it is luminous to control light emitting diode 10, and the light-emitting flash frequency is 1Hz, and the light on and off dutycycle is 4:1.
Specifically describe: after fire occurs, the position identification device of fire generation area receives the fire alarm trigger pip, cpu circuit 2 receives trigger pip, read the set parameter signal of parameter setting circuit 7, at first from calling the continuous raising frequency audio warning of 2000Hz~6000Hz in wideband voice bank memory circuit 9, through sound amplifying circuit 3, power amplification circuit 4, full frequency speaker 9 output sound signals, the sound intensity is the sound pressure that 85dBA(records apart from sound source 3m place), duration T 0 is selected in 1-5S according to on-site actual situations and personnel's feature, for causing the attention of crowd in the breaking out of fire zone.
Then, the cpu circuit 2 of position identification device sends stop signal to output control circuit 5 and makes the quiet 1S of full frequency speaker 9, call wideband pulse sound again in wideband voice bank memory circuit 9, through sound amplifying circuit 3, power amplification circuit 4, full frequency speaker 9 output sound signals, as fire exit location recognition sound, the sound intensity is the sound pressure that 75dBA(records apart from sound source 3m place), guide near the crowd in fire exit to find rapidly fire exit.
Because wideband sound has low frequency, intermediate frequency and 3 wave bands of high frequency, contained frequency information is very abundant, and the wideband pulse sound therefore sent more easily heard by people's ear, even in neighbourhood noise under stronger condition, and can not be masked.The pattern of wideband pulse sound is in Table 1, the sound pattern has three kinds, comprises at a slow speed, middling speed, fast, by sound pattern setting parameter, can according to applied field, personnel's feature to be optionally wherein a kind of in one's power, the principle of selection is that the slower sounding pattern of speed should be selected in the place that density of personnel is larger.
Table 1 wideband pulse sound pattern
The sound pattern Duration T 1(mS) Sounding interval T 2(mS) Pulse number Frequency range (Hz)
At a slow speed 300 200 6 300~16000
Middling speed 200 200 6 300~16000
Fast 100 150 6 300~16000
The sound style of take at a slow speed is elaborated as example, and wideband pulse sound is first sent out 300mS, and the 200mS that then pauses circulates 6 times, and phonation time amounts to 3S, and audio frequency range is 300~16000Hz.
6 subpulse sound send and finish, and the cpu circuit 2 of position identification device sends stop signal to output control circuit 5 and makes the quiet 1S of full frequency speaker 9, then repeats to send wideband pulse sound.
When the fire generation area has a plurality of fire exits, while a plurality of position identification device being installed, the phonation time time difference T3 of two adjacent position identification devices should be at least more than 50mS, to prevent can't telling the situation appearance of nearest position, fire exit because Haas effect causes the evacuation personnel, this mistiming, T3(namely started delay parameter) generally between 70mS~200mS, select.The time difference of phonation time can be by the parameter setting circuit setting, time synchronously synchronous by the fire alarm trigger pip, in can the toggle switch in each position identification device, different gears be set and represents different startup delay parameters, for example: 2 adjacent devices, a toggle switch is set to 1, another toggle switch is set to 2, after they receive trigger pip simultaneously, be set to 1 the enforcement of startup immediately guiding sequential, be set to 2 time delay 70mS and restart the guiding sequential, the like.

Claims (4)

1. guide the position identification device of evacuating personnel based on Audiotechnica, it is characterized in that: power converting circuit (1) is connected with cpu circuit (2), sound amplifying circuit (3), power amplification circuit (4), light emission drive circuit (6), wideband voice bank memory circuit (8); Cpu circuit (2) is connected with sound amplifying circuit (3), output control circuit (5), parameter setting circuit (7), wideband voice bank memory circuit (8); Power amplification circuit (4) is connected with sound amplifying circuit (3), output control circuit (5), full frequency speaker (9); Light emission drive circuit (6) is connected with output control circuit (5), light emitting diode (10);
Cpu circuit (2): adopt arm processor, for the control position recognition device according to certain sequential sounding and luminous; Receive the digital quantity parameter signal of outer triggering signal and parameter setting circuit (7), call the acoustic information of wideband voice bank memory circuit (8), and output sound signal outputs control signals to output control circuit (5) to sound amplifying circuit (3);
Output control circuit (5) carries out control level conversion output digital controlled signal to power amplification circuit (4) according to control signal, and output analog quantity voltage signal is to light emission drive circuit (6).
2. the position identification device based on Audiotechnica guiding evacuating personnel according to claim 1, is characterized in that: described wideband voice bank memory circuit (8) employing Flash storage chip.
3. the position identification device based on Audiotechnica guiding evacuating personnel according to claim 1, it is characterized in that: described parameter setting circuit (7) is toggle switch.
4. the position identification device based on Audiotechnica guiding evacuating personnel according to claim 1, it is characterized in that: described position identification device is a plurality of.
CN201320397297.0U 2013-07-04 2013-07-04 Position identification device capable of guiding people to evacuate based on audio frequency technology Expired - Lifetime CN203376827U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104282099A (en) * 2013-07-04 2015-01-14 公安部沈阳消防研究所 Position identifying device for guiding people to scatter based on audio technology and control method thereof
CN112150742A (en) * 2020-09-18 2020-12-29 江苏科技大学 Low-power-consumption acoustic proximity alarm device and alarm method based on sound field perception

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104282099A (en) * 2013-07-04 2015-01-14 公安部沈阳消防研究所 Position identifying device for guiding people to scatter based on audio technology and control method thereof
CN112150742A (en) * 2020-09-18 2020-12-29 江苏科技大学 Low-power-consumption acoustic proximity alarm device and alarm method based on sound field perception

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C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 110034 Wendalu 218-20A, Huanggu District, Shenyang City, Liaoning Province

Patentee after: SHENYANG FIRE Research Institute OF MEM

Address before: 110034 Wendalu 218-20A, Huanggu District, Shenyang City, Liaoning Province

Patentee before: Shenyang Fire Research Institute of the Ministry of Public Security

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140101