CN107274628B - Normally-open fireproof door obstacle detection system - Google Patents
Normally-open fireproof door obstacle detection system Download PDFInfo
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- CN107274628B CN107274628B CN201710608464.4A CN201710608464A CN107274628B CN 107274628 B CN107274628 B CN 107274628B CN 201710608464 A CN201710608464 A CN 201710608464A CN 107274628 B CN107274628 B CN 107274628B
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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
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Abstract
The invention discloses an obstacle detection system of a normally-open fireproof door, which comprises a detection device, a processing device and an alarm device, wherein the detection device is used for detecting whether an obstacle exists in a closed path of the normally-open fireproof door or not; and after the detection device detects the obstacle, the processing device tracks the retention time of the obstacle in real time, and if the retention time is longer than the preset time, the processing device triggers the alarm device to give an alarm. When the detection device detects that an obstacle exists in a closed path of the anti-theft door, and the stay time of the obstacle exceeds the preset time, the normally-open fireproof door can be blocked for a long time, and the normal closing of the normally-open fireproof door is blocked. At the moment, the processing device can trigger the alarm device to give an alarm to inform surrounding people to move the barrier away.
Description
Technical Field
The invention relates to the technical field of fire door safety, in particular to an obstacle detection system of a normally-open fire door.
Background
Normally open fire doors are reported to be fire insulation devices that play a critical role in a variety of buildings. Whether a fire door is actually used or not is often opened when a fire occurs, and the size of the loss caused by the fire is closely related. The deadly chief culprit of a fire accident is not fire but smoke. As long as before the fire spread greatly, many people are unconscious by inhaling excessive toxic smoke, thus burying the fire scene. It is known that sundries are not allowed to be stacked in the rotation path of the normally open fireproof door, and a plurality of fireproof areas are divided in common large shopping malls, supermarkets and other crowded places, and the normally open fireproof door is installed. Once a fire disaster occurs, the normally open fireproof doors can be closed automatically under the linkage control of the fire control center, the accident site is isolated, and the burning and spreading of smoke and fire are controlled in a local range. The fire-resistant limit time of the fire-proof rolling curtain is more than two hours, and some fire-resistant rolling curtains can even be as long as four hours, so that sufficient time is provided for people to escape from a fire scene. However, the fire-proof edge tool cannot normally play a role of safety guarantee because the fire-proof edge tool is blocked by sundries in the closing process.
disclosure of Invention
The invention aims to provide an obstacle detection system of a normally-open fireproof door, which can detect whether an obstacle exists in a closed path of the normally-open fireproof door or not and give an alarm to inform a person of clearing the obstacle when the obstacle exists.
The technical purpose of the invention is realized by the following technical scheme:
A barrier detection system of a normally-open fireproof door comprises a detection device, a processing device and an alarm device, wherein the detection device is used for detecting whether a barrier exists in a closed path of the normally-open fireproof door or not; and after the detection device detects the obstacle, the processing device tracks the retention time of the obstacle in real time, and if the retention time is longer than the preset time, the processing device triggers the alarm device to give an alarm.
Through adopting above-mentioned technical scheme, there is the obstacle in the closed route that detection device detected the burglary-resisting door to the dwell time of obstacle surpasss preset time, then can block normally opening fire door for a long time, hinders normally closing of normally opening fire door. At the moment, the processing device can trigger the alarm device to give an alarm to inform surrounding people to move the barrier away.
Further, detection device is including setting up in the fan-shaped bearing plate in ground and setting up in the pressure sensor of fan-shaped bearing plate below, pressure sensor output is used for showing the pressure signal of the pressure that the bearing plate receives, the coverage area of fan-shaped bearing plate is normally opened the biggest rotation region of preventing fire door in the horizontal plane for normally.
Through adopting above-mentioned technical scheme, fan-shaped bearing plate has covered the biggest rotation region of normally opening fire door in the horizontal plane, consequently through the pressure sensor detectable of fan-shaped bearing plate below normally opening fire door rotation region in whether have the barrier.
Further, processing apparatus includes pressure comparing element, acquires the pressure signal of pressure sensor output, and with predetermineeing pressure and carry out the comparison, if pressure signal is greater than predetermineeing pressure, then judge that the barrier on the fan-shaped bearing plate can hinder normally to open and prevent that fire door is closed.
Through adopting above-mentioned technical scheme, if place the object quality on the bearing plate less, even then the object is on normally opening the closed route of preventing fire door, but it can not hinder normally opening the closure of preventing fire door, consequently only when pressure signal is greater than preset pressure, just judges that the barrier on the bearing plate can hinder normally opening and prevent that fire door is closed.
Further, the processing device comprises a timing unit, when the detection device detects the obstacle, the timing unit starts timing, and when the obstacle is eliminated within a preset time, the timing is stopped and the zero clearing is carried out; when the time recorded by the timing unit is greater than the preset time, the processing device triggers the alarm device to alarm.
By adopting the technical scheme, the obstacle can be temporarily placed on the bearing plate, so that the processing device immediately triggers the alarm device to give an alarm when the detection device detects the obstacle. Therefore, a timing unit is needed to time the staying time of the obstacle, and the staying time of the obstacle is used as a basis for judging whether the obstacle exists all the time or is placed temporarily.
Further, still including being used for detecting whether near normally open prevent near the door human detection device who has someone, human detection device detects near normally open prevent near the door someone, processing apparatus does not trigger alarm device.
Through adopting above-mentioned technical scheme, when human detection device detects that there is the people near normally opening fire door, probably the people steps on the bearing plate, also probably the people places the object on the bearing plate, consequently need not carry out the barrier and detect this moment to whole system mistake is handled the people as the barrier or is regarded the object that the people placed temporarily as the barrier.
Further, when the human body detection device detects that a person is near the normally-open fireproof door, the timing unit does not time.
By adopting the technical scheme, the timing unit does not perform timing, and the judgment result without the obstacle is not interfered. The timing device is in a standby state, and the consumption of electric energy can be reduced.
Further, when the human body detection device detects that a person is near the normally-open fireproof door, the pressure sensor stops detecting.
By adopting the technical scheme, the pressure sensor stops detecting, so that the pressure sensor can be prevented from interfering the system judgment result without obstacles.
And when the processing device triggers the alarm device, the processing device controls the communication device to send alarm information to the master control terminal.
By adopting the technical scheme, when the alarm device is triggered, the processing device can inform the master control terminal of the existence of the barrier on the closed path of the normally-opened fireproof door through the communication device, and inform the master control terminal of the fact that the barrier is removed from the normally-opened fireproof door in time.
In conclusion, the invention has the following beneficial effects: when the detection device detects that an obstacle exists in a closed path of the anti-theft door, and the stay time of the obstacle exceeds the preset time, the normally-open fireproof door can be blocked for a long time, and the normal closing of the normally-open fireproof door is blocked. At the moment, the processing device can trigger the alarm device to give an alarm to inform surrounding people to move the barrier away.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a system block diagram of the present invention;
Fig. 3 is a general conceptual flow diagram of the present invention.
In the figure, 1, a detection device; 2. a processing device; 3. an alarm device; 4. a sector-shaped bearing plate; 21. a pressure comparison unit; 22. a timing unit; 5. a human body detection device; 6. a communication device; 7. and (4) a master control terminal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
An obstacle detection system of a normally open fireproof door is shown in fig. 2, and comprises a detection device 1 for detecting whether an obstacle exists in a closed path of the normally open fireproof door, a processing device 2 for judging whether the obstacle exists for a long time and an alarm device 3; when the detection device 1 detects the obstacle, the processing device 2 tracks the retention time of the obstacle in real time, and if the retention time is longer than the preset time, the processing device 2 triggers the alarm device 3 to give an alarm.
The inventive concept of the present invention will be described below with reference to fig. 2 and 3.
As shown in fig. 1, the detecting device 1 includes a sector-shaped pressure-bearing plate 4 and a pressure sensor (not shown), and when there is an object on the sector-shaped pressure-bearing plate 4, the pressure sensor can detect the pressure on the pressure-bearing plate and convert the magnitude of the pressure into a pressure signal. The fan-shaped pressure bearing plate 4 is designed according to the maximum rotation area of the normally open fireproof door in the horizontal plane, and covers the rotatable area of the normally open fireproof door, so that whether an object exists in the closed path of the normally open fireproof door can be detected.
The pressure comparing unit 21 of the detecting device 1 compares the pressure signal with the preset pressure, and when the pressure signal is greater than the preset pressure, it indicates that the object on the pressure-bearing plate cannot be pushed by the automatically driven normally open fire door, and thus it is determined that the obstacle on the sector-shaped pressure-bearing plate would block the normally open fire door from closing. When the pressure signal is smaller than the preset pressure, the object can be pushed by the automatically-driven normally-open fireproof door, and the normal closing of the normally-open fireproof door is not influenced.
when the obstacle exists on the moving path of the normally-open fireproof door, the alarm device 3 cannot be triggered to alarm immediately. Since it is possible that someone temporarily places the object on the sector pressure bearing plates 4 while the object is being carried, an immediate alarm will cause a false alarm. At this time, the timing unit 22 in the processing device 2 is needed to time the time of the obstacle on the pressure bearing plate, and when the obstacle is eliminated within the preset time, the timing is stopped and cleared; when the time recorded by the timing unit 22 is greater than the preset time, the processing device 2 triggers the alarm device 3 to alarm.
The invention is also provided with a human body detection device 5 for detecting whether a person is near the normally open fireproof door. When the detection device 1 detects that a person is near the normally open fire door, the processing device 2 does not trigger the alarm device 3. Because the person may step on the pressure bearing plate or the person may place an object on the pressure bearing plate, obstacle detection is not needed at this time, so that the whole system does not take the person as an obstacle by mistake or takes the object placed temporarily by the person as an obstacle. The main detection device used by the human body detection device 5 is a pyroelectric sensor, and the detection distance of the pyroelectric sensor is controlled within 2 m.
the invention adopts two modes to ensure that the alarm device 3 is not triggered when a person is near the normally open fireproof door, more specifically, the person stands on one side of the door rotation. One is to keep the untimed state of the timing unit 22, so that even if there is an obstacle on the pressure bearing plate, the staying time of the obstacle will not exceed the preset time, and the alarm device 3 will not be triggered; the other is to stop the detection of the pressure sensor, the pressure sensor will not output a pressure signal and the alarm device 3 will obviously not be triggered.
The fire door alarm system is further provided with a communication device 6 and a master control terminal 7, when the alarm device 3 is triggered, the communication device 6 feeds back the alarm state to the master control terminal 7, and informs workers of the master control terminal 7 of timely handling the condition that the normally-open fire door is blocked by an obstacle. The communication device 6 and the master control terminal 7 can communicate with each other through wired RS323, RS485, wireless zigbee and the like.
The various illustrative logical blocks, modules, circuits, elements, and/or components described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic component, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing components, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
Claims (3)
1. The utility model provides a normally open barrier detecting system who prevents fire door, characterized by: the system comprises a detection device (1) for detecting whether an obstacle exists in a closed path of a normally-open fireproof door, a processing device (2) for judging whether the obstacle exists for a long time and an alarm device (3); after detection device (1) detects the barrier, processing apparatus (2) trails the dwell time of barrier in real time, if dwell time is greater than preset time, processing apparatus (2) triggers alarm device (3) and reports to the police, detection device (1) is including setting up in fan-shaped bearing plate (4) in ground and setting up in the pressure sensor of fan-shaped bearing plate (4) below, pressure sensor output is used for showing the pressure signal of bearing plate pressure, the cover area of fan-shaped bearing plate (4) is the biggest rotation area of normally opening fire door in the horizontal plane, processing apparatus (2) include pressure comparing unit (21), acquire the pressure signal of pressure sensor output, compare with preset pressure, if pressure signal is greater than preset pressure, then judge that the barrier on fan-shaped bearing plate (4) can hinder normally opening fire door closure, the processing device (2) comprises a timing unit (22), when the detection device (1) detects an obstacle, the timing unit (22) starts timing, and when the obstacle is eliminated within a preset time, the timing is stopped and cleared; time when timing unit (22) record is greater than the time of predetermineeing, then processing apparatus (2) trigger alarm device (3) report to the police, still including being used for detecting whether someone human detection device (5) prevent near the door normally open, human detection device (5) detect to normally open and prevent near the door someone, processing apparatus (2) do not trigger alarm device (3), work as human detection device (5) detect to normally open and prevent near the door someone, timing unit (22) do not time.
2. The obstruction detection system of a normally open fire door according to claim 1, wherein: when the human body detection device (5) detects that a person is near the normally-open fireproof door, the pressure sensor stops detecting.
3. The obstruction detection system of a normally open fire door according to claim 2, wherein: the alarm system is characterized by further comprising a communication device (6) and a master control terminal (7), when the processing device (2) triggers the alarm device (3), the processing device (2) controls the communication device (6) to send alarm information to the master control terminal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710608464.4A CN107274628B (en) | 2017-07-24 | 2017-07-24 | Normally-open fireproof door obstacle detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710608464.4A CN107274628B (en) | 2017-07-24 | 2017-07-24 | Normally-open fireproof door obstacle detection system |
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| Publication Number | Publication Date |
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| CN107274628A CN107274628A (en) | 2017-10-20 |
| CN107274628B true CN107274628B (en) | 2019-12-13 |
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| CN201710608464.4A Active CN107274628B (en) | 2017-07-24 | 2017-07-24 | Normally-open fireproof door obstacle detection system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108171938A (en) * | 2017-12-08 | 2018-06-15 | 广州粤华物业有限公司 | Channel blockage monitoring and alarming system |
| CN113216820A (en) * | 2021-05-26 | 2021-08-06 | 昆明金安利信息技术有限公司 | Roller shutter door with anti-misoperation intelligent controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL1014503C2 (en) * | 2000-02-25 | 2001-08-28 | Boon Edam Bv | Revolving door. |
| CN201181330Y (en) * | 2007-12-12 | 2009-01-14 | 环隆电气股份有限公司 | Detection device for detecting obstacles behind door |
| JP5480379B2 (en) * | 2009-07-17 | 2014-04-23 | オーチス エレベータ カンパニー | Method for determining the functionality of an automatically closing door system, automatic door system and elevator system |
| CN104240222A (en) * | 2013-06-19 | 2014-12-24 | 贺江涛 | Intelligent detecting method and device for firefighting access blockage |
| CN105137436B (en) * | 2015-08-31 | 2019-01-04 | 湖南汇博电子科技股份有限公司 | Passageway for fire apparatus checks system and method |
| CN105957265A (en) * | 2016-05-13 | 2016-09-21 | 成都易泊时代信息技术有限公司 | Multifunctional intelligent express delivery cabinet |
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