CN109598894A - It is a kind of that pre-alarm system is trampled based on multi-signal detection - Google Patents
It is a kind of that pre-alarm system is trampled based on multi-signal detection Download PDFInfo
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- CN109598894A CN109598894A CN201811567900.9A CN201811567900A CN109598894A CN 109598894 A CN109598894 A CN 109598894A CN 201811567900 A CN201811567900 A CN 201811567900A CN 109598894 A CN109598894 A CN 109598894A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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Abstract
The invention discloses a kind of tread event pre-alarm systems based on multi-signal detection, including congestion signal acquiring system, trample pre-alarm system；Wherein congestion signal acquiring system realizes that crowd's quantity statistics can generate crowd's congestion signal when number reaches set threshold value by Wi-Fi probe technique；Trampling early warning and alarm in pre-alarm system is trampling early warning and alarming circuit and realize by two kinds of signals control, pre-warning signal is trampled using infrared absorption type carbon dioxide sensor, the detection of gas concentration lwevel in realization crowd carries out trampling early warning when gas concentration lwevel is excessively high；Alarm signal is trampled using capacitance pressure transducer, is stood by people different from pressure when falling, the alarm of Lai Shixian tread event.The present invention is by Wi-Fi probe in detecting crowd's quantity, and generated congestion signal combination carbon dioxide sensor and pressure sensor signal detected come together to realize the early warning of tread event and alarm, to effectively avoid the generation of tread event.Entire alarm system detection is accurate, practical, high reliablity.
Description
Technical field
Pre-alarm system is trampled based on multi-signal detection the present invention relates to a kind of, belongs to public safety field.
Background technique
It the occasion of gathering of people and holds large-scale activity as socio-economic development and urbanization process promote, in city and gets over
Come more, including competitive sports, Music Day, art exhibition etc., there are also the public places such as railway station, recreation ground, these regional populations
Intensively, large-scale crowd massing easilys lead to crowd and tramples accident, causes a large amount of crowd's injures and deaths.But in these public places
It is difficult accurately and effectively to carry out trampling early warning and tramples alarm.In order to solve this problem, it designs a kind of based on multi-signal inspection
That surveys tramples pre-alarm system, in the public place of crowd massing, crowd's quantity is detected by the Wi-Fi probe moment, in people
Group's quantity is more than given threshold Shi Zewei congestion warning, in congestion warning, is passed by carbon dioxide sensor and pressure
Sensor obtains pre-warning signal and alarm signal respectively, and realization tramples early warning and tramples alarm, to be effectively prevented tread event
Generation.This is trampled system and pressure sensor is put into carpet or floor, falls down so as to accurately detect crowd, and stepped on
Alarm is stepped on, notifies rescue personnel to rush for the scene of trampling in time and succour, to substantially increase the accuracy of system.The system
It is related to the knowledge background such as analog electronics technique, detection technique, the communication technology.
Summary of the invention
The characteristics of present invention occurs according to tread event mentions from the specific requirement for trampling accident energy accurate early warning and prevention
The angle of the dependable with function of high system is set out, and using the characteristic of Wi-Fi probe, is devised a kind of based on multi-signal inspection
The tread event early warning of survey and alarm system.
To achieve the above object, a kind of tread event pre-alarm system based on multi-signal detection of the invention, institute
The early warning and alarm stated are to carry out signal detection based on carbon dioxide sensor and pressure sensor, low using gas concentration lwevel
The crowd of will cause is short of breath, pressure when being easy the early warning that the characteristic fainted realizes accident of trampling, and being fallen by crowd
Variation achievees the purpose that trampling accident alarming, it is characterized in that:
The invention includes congestion signal acquiring system, tramples pre-alarm system；
The congestion signal acquiring system includes mobile phone terminal (1), AP data collector (2), the storage of AP server data
Device (3), SQL server data-analyzing machine (4), congestion signal acquisition circuit (5)；
Described trample includes infrared light supply transmit circuit (6), infrared detection circuit (7), titanium dioxide in pre-alarm system
Carbon signal Acquisition Circuit (8), capacitive pressure detection circuit (9), tumble integrating instrument (10), tumble signal acquisition circuit (11),
Tread event pre-alarm system master control borad (12) tramples early warning and alarming circuit (13), data storage (14)；
Wherein mobile phone terminal (1) is connected by Wi-Fi with AP data collector (2) input terminal, AP data collector (2)
Output end is connected with the input terminal of AP server data storage (3), the output end of AP server data storage (3) with
The input terminal of SQL server data-analyzing machine (4) is connected, the output end and congestion signal of SQL server data-analyzing machine (4)
The input terminal of Acquisition Circuit (5) is connected, output end and infrared detection circuit (7) the input terminal phase of infrared light supply transmit circuit (6)
Even, the output end of infrared detection circuit (7) is connected with the input terminal of carbon dioxide signals Acquisition Circuit (8), capacitive pressure inspection
The output end of slowdown monitoring circuit (9) is connected with tumble integrating instrument (10) input terminal, the output end and tumble signal of tumble integrating instrument (10)
The input terminal of Acquisition Circuit (11) is connected, the output end of congestion signal acquisition circuit (5), carbon dioxide signals Acquisition Circuit (8)
Output end, tumble signal acquisition circuit (11) output end and tread event pre-alarm system master control borad (12) input terminal
It is connected, the output end of tread event pre-alarm system master control borad (12) and input terminal, the number for trampling early warning and alarming circuit (13)
It is connected according to the input terminal of storage (14).
Compared with prior art, advantageous effects of the invention:
The newest fruits that Radio Transmission Technology and Wi-Fi Detection Techniques are used for reference in trampling early warning and alarm system, by Wi-
The quantity of Fi probe application crowd in tread event pre-alarm system detects.According to crowd's quantity of Wi-Fi probe in detecting,
Then realization crowd's congestion warning detects gas concentration lwevel by infrared absorption type carbon dioxide sensor, realization is trampled
Alarm is trampled in early warning, the pressure detecting fallen using capacitance pressure transducer, to crowd, realization.The advantages of this scheme is implemented
It is to detect crowd's quantity using Wi-Fi probe, keeps its measurement convenient, the detection of density of stream of people is carried out without using image,
And Wi-Fi probe can also judge crowd track, to implement preferably management to crowd's congestion；Utilize carbon dioxide sensing
Device, to it is crowded when carbon dioxide increase this factor and detect, early warning can be effectively made before trampling, is prevented
The only generation of tread event；It can accurately judge the generation of tread event, using pressure sensor so as to make medical staff exist
The scene for going to the accident of trampling at the first time, is preferably minimized casualties.
Detailed description of the invention
Fig. 1 is the tread event pre-alarm system structure chart of the present invention based on multi-signal detection.
Fig. 2 tramples pre-warning signal acquisition system schematic diagram to be of the present invention.
Fig. 3 tramples alarm signal acquisition system schematic diagram to be of the present invention.
Specific embodiment
Of the invention tramples pre-alarm system based on multi-signal detection, and the safety for being mainly used in public place is set
It is standby, a specific embodiment of the invention is described with reference to the accompanying drawings.
Fig. 1 is the tread event pre-alarm system structure chart detected based on multi-signal.As shown in figure, of the invention
Hardware circuit specific embodiment is as follows:
A kind of tread event pre-alarm system based on multi-signal detection of the invention, preferred embodiment include gathering around
Stifled signal acquiring system tramples pre-alarm system；Congestion signal acquiring system includes mobile phone terminal (1), AP data collector
(2), AP server data storage (3), SQL server data-analyzing machine (4), congestion signal acquisition circuit (5)；It tramples pre-
Include in alert alarm system infrared light supply transmit circuit (6), infrared detection circuit (7), carbon dioxide signals Acquisition Circuit (8),
Capacitive pressure detection circuit (9), tumble integrating instrument (10), tumble signal acquisition circuit (11), tread event early warning and alarming system
System master control borad (12) tramples early warning and alarming circuit (13), data storage (14)；
Wherein mobile phone terminal (1) is connected by Wi-Fi with AP data collector (2) input terminal, AP data collector (2)
Output end is connected with the input terminal of AP server data storage (3), the output end of AP server data storage (3) with
The input terminal of SQL server data-analyzing machine (4) is connected, the output end and congestion signal of SQL server data-analyzing machine (4)
The input terminal of Acquisition Circuit (5) is connected, output end and infrared detection circuit (7) the input terminal phase of infrared light supply transmit circuit (6)
Even, the output end of infrared detection circuit (7) is connected with the input terminal of carbon dioxide signals Acquisition Circuit (8), capacitive pressure inspection
The output end of slowdown monitoring circuit (9) is connected with tumble integrating instrument (10) input terminal, the output end and tumble signal of tumble integrating instrument (10)
The input terminal of Acquisition Circuit (11) is connected, the output end of congestion signal acquisition circuit (5), carbon dioxide signals Acquisition Circuit (8)
Output end, tumble signal acquisition circuit (11) output end and tread event pre-alarm system master control borad (12) input terminal
It is connected, the output end of tread event pre-alarm system master control borad (12) and input terminal, the number for trampling early warning and alarming circuit (13)
It is connected according to the input terminal of storage (14).
Specifically, the congestion signal acquiring system and trample pre-alarm system as shown in Figure 1, AP data acquire
The Beacon frame of transmission around of device (2) timing, mobile phone terminal (1) can detect the presence of AP data collector (2), and constantly
Transmission probe frame just obtain the MAC Address of mobile phone terminal (1), then pass through AP when AP (2) receives probe frame
Server data storage (3) stores MAC Address, is then carried out by SQL server data-analyzing machine (4) to data
It calculates, obtains associated mobile phone terminal (1) quantity under each AP data collector (2) equipment, count multiple AP data collectors
(2) mean value of the mobile phone terminal quantity in some region representated by, by the suitable threshold value of mean set, when mobile phone terminal (1)
Quantity then generates congestion signal by congestion signal acquisition circuit (5) when being greater than set threshold value.
Specifically, described to trample pre-alarm system as shown in Figure 1, including pre-warning signal acquisition system is trampled
With trample alarm signal acquisition system；As shown in Fig. 2, trampling the sensor that pre-warning signal acquisition system uses as infrared absorption type
Gas sensor, the carbon dioxide in crowd enter gas compartment by dust cover, infrared light supply transmit circuit (6) produces by stomata
Raw infrared light supply, and gas is irradiated by optical filtering, Lambert-Beer is obeyed to the absorption of infrared light according to gas
Law is detected the carbon dioxide for absorbing infrared light with infrared detection circuit (7), and is converted using amplifying circuit and A/D
Circuit generates corresponding carbon dioxide signals, finally generates gas concentration lwevel signal by carbon dioxide signals Acquisition Circuit (8)
It is sent into tread event pre-alarm system master control borad (12), pre-warning signal acquisition is trampled in realization；As shown in figure 3, trampling alarm signal
The sensor that number acquisition system uses is capacity effect microsensor, and there are two types of capacitors to participate in measurement, a kind of conduct for the sensor
Reference capacitance does not change in measurement process, and another kind is generated as measurement capacitor, capacitance because of the effect of pressure
Variation, temperature are consistent temperature effect caused by both capacitors, miss to reduce the measurement generated by temperature
Difference；Pressure different when standing or walking from crowd can be generated when crowd falls, which causes the distance between capacitor board to become
Change, to generate capacitive pressure signal using capacitive pressure detection circuit (9), and is handled by c/f conversion circuit, then
Frequency signal is handled by tumble integrating instrument (10) again, is finally generated personnel's tumble signal by tumble signal acquisition circuit (11) and is sent into
Alarm signal acquisition is trampled in tread event pre-alarm system master control borad (12), realization；As shown in Figure 1, both signals are sent into
The gas concentration lwevel threshold value and personnel's tumble threshold that tread event pre-alarm system master control borad (12) is set with congestion signal afterwards
Value is compared processing, realizes the early warning and alarm of tread event by trampling early warning and alarming circuit (13), and pass through data
(14) module is stored, the two kinds of signals measured every time are stored and analyzed, the accuracy of Lai Tigao system early warning and alarm.
Claims (4)
1. a kind of tread event pre-alarm system based on multi-signal detection, the tread event pre-alarm system are
Based on a kind of in the public place for being easy to happen tread event, number detection is carried out to public place using Wi-Fi probe, and right
Crowd carries out carbon dioxide detection and fall detection, it is characterized in that:
The invention includes congestion signal acquiring system, tramples pre-alarm system；
The congestion signal acquiring system includes mobile phone terminal (1), AP data collector (2), AP server data storage
(3), SQL server data-analyzing machine (4), congestion signal acquisition circuit (5)；
Described trample includes infrared light supply transmit circuit (6), infrared detection circuit (7), carbon dioxide letter in pre-alarm system
Number Acquisition Circuit (8), tumble integrating instrument (10), tumble signal acquisition circuit (11), is trampled at capacitive pressure detection circuit (9)
Event pre-alarm system master control borad (12) tramples early warning and alarming circuit (13), data storage (14)；
Wherein mobile phone terminal (1) is connected by Wi-Fi with AP data collector (2) input terminal, the output of AP data collector (2)
End is connected with the input terminal of AP server data storage (3), the output end and SQL of AP server data storage (3)
The input terminal of server data-analyzing machine (4) is connected, the output end and congestion signal acquisition of SQL server data-analyzing machine (4)
The input terminal of circuit (5) is connected, and the output end of infrared light supply transmit circuit (6) is connected with infrared detection circuit (7) input terminal, red
The output end of outer detection circuit (7) is connected with the input terminal of carbon dioxide signals Acquisition Circuit (8), capacitive pressure detection circuit
(9) output end is connected with tumble integrating instrument (10) input terminal, output end and tumble the signal acquisition electricity of tumble integrating instrument (10)
The input terminal on road (11) is connected, the output of the output end, carbon dioxide signals Acquisition Circuit (8) of congestion signal acquisition circuit (5)
End, tumble signal acquisition circuit (11) output end be connected with the input terminal of tread event pre-alarm system master control borad (12),
The output end of tread event pre-alarm system master control borad (12) and input terminal, the data storage for trampling early warning and alarming circuit (13)
(14) input terminal is connected.
2. it is according to claim 1 it is a kind of based on multi-signal detection trample pre-alarm system, which is characterized in that institute
That states tramples pre-alarm system, its working principle is that: AP data collector (2) detects mobile phone terminal (1) by Wi-Fi, benefit
Data storage and data analysis are carried out with AP server data storage (3) and SQL server data-analyzing machine (4), and is passed through
Congestion signal acquisition circuit (5) generates congestion signal, this congestion signal is sent into pre-alarm system master control borad (12), after processing
The gas concentration lwevel threshold value and crowd's tumble threshold value for generating and trampling in pre-alarm system is set separately.
3. it is according to claim 1 it is a kind of based on multi-signal detection trample pre-alarm system, which is characterized in that institute
That states tramples pre-warning signal acquisition system, its working principle is that: infrared light supply transmit circuit (6) can generate infrared light supply, air
In carbon dioxide can absorb this infrared light supply, infrared detection circuit (7) detects carbon dioxide, and is believed by carbon dioxide
Number Acquisition Circuit (8) generates carbon dioxide signals, and transmits a signal to tread event pre-alarm system master control borad (12), when
When detecting that gas concentration lwevel is more than set threshold value, carry out trampling early warning.
4. it is according to claim 1 it is a kind of based on multi-signal detection trample pre-alarm system, which is characterized in that institute
That states tramples alarm signal acquisition system, its working principle is that: the capacitive pressure detection circuit generated when being fallen according to crowd
(9), the number that event occurs is calculated by tumble integrating instrument (10), and generates letter of falling by tumble signal acquisition circuit (11)
Number, and pressure signal is transferred to tread event pre-alarm system master control borad (12), it is more than setting when the crowd that detects falls
When threshold value, carry out trampling alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811567900.9A CN109598894A (en) | 2018-12-14 | 2018-12-14 | It is a kind of that pre-alarm system is trampled based on multi-signal detection |
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| CN201811567900.9A CN109598894A (en) | 2018-12-14 | 2018-12-14 | It is a kind of that pre-alarm system is trampled based on multi-signal detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115762055A (en) * | 2023-01-05 | 2023-03-07 | 广东汇通信息科技股份有限公司 | Public place treading early warning method based on computer vision |
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