CN210222981U - Reconfigurable fire-fighting information sensing system - Google Patents

Abstract

The utility model provides a reconfigurable fire-fighting information sensing system, a plurality of wireless sensing terminals, a plurality of wireless indicating terminals and a communication concentrator are arranged in each defense area, the communication concentrator is connected with a monitoring host, each wireless sensing terminal in the defense area, a wireless sensing network module is arranged in each wireless indicating terminal and the communication concentrator to form a wireless sensing network, and information exchange is carried out between each terminal through the wireless sensing network, when the monitoring host can be connected, each defense area information realizes information interaction with the monitoring host through the communication concentrator, if the communication concentrator in any defense area is disconnected with the monitoring host, the defense area information can be transmitted to other similar defense areas through a wireless network, and information interaction with the monitoring host is realized through the similar defense areas, when the monitoring host is completely disconnected, the wireless sensing terminals of each defense area take over the monitoring host, the distributed control is realized for the defense area, and the fire-fighting system is prevented from being in a paralyzed state after the monitoring host is disconnected.

Description

Reconfigurable fire-fighting information sensing system

Technical Field

The utility model relates to a fire control safety field especially relates to a reliable fire control information sensing system.

Background

The fire hazard is one of main disasters threatening public safety and social development, along with the development of social economy, the requirements of people on fire safety are higher and higher, and a fire-fighting system mainly comprises a fire alarm system, a fire-extinguishing system, an emergency broadcasting lighting system, a fire-preventing separation facility, a safe evacuation facility and the like. The existing fire alarm system generally adopts a smoke sensor and a temperature sensor for detection, sends alarm information to a monitoring host through a public network or a private network, and adopts an emergency evacuation indicator lamp to guide a fixed evacuation direction. The existing fire alarm and evacuation system has the following defects:

(1) each associated device transmits the monitored alarm information to a monitoring host through a public network or a private network, and the monitoring host controls the fire-fighting evacuation work of each defense area in a centralized manner, but when a dangerous situation occurs, the public network or the private network can be damaged to prevent the transmission of signals, and the monitoring host cannot acquire fire information in each defense area and cannot guide evacuation rescue work, so that the whole fire alarm system is in a paralyzed state, and great potential safety hazards are caused;

(2) the existing fire alarm device usually detects physical signals related to the temperature, smoke concentration and the like of a fire by a sensor element, and automatically sends out alarm signals after being distinguished by the alarm device, however, the working state of the existing fire alarm device depends on the sensitivity of the sensor to a great extent, and the smoke sensor only provides instant alarm signals according to data at a certain moment for a long time, and cannot continuously obtain smoke concentration measured values of the sensor, so that the sensor is prone to false alarm when being interfered by other signals (such as smoke generated by smoking) which occasionally appear; the real-time monitoring of fire-fighting data cannot be realized, the severity of the disaster cannot be known, and necessary information is provided for fire rescue; meanwhile, fire fighters cannot provide early warning information according to the change trend of the smoke concentration, and take measures as early as possible.

(3) The existing safe evacuation channels are mostly stairs, people are mostly evacuated spontaneously by indicators such as escape indicator lamps or indication boards in the safe evacuation channels during evacuation, the evacuation channels are fixed, congestion and casualties are easily caused, the fire severity of each floor area of a building is different, the existing fire-fighting evacuation system cannot indicate the optimal evacuation route according to the actual disaster situation of each position in the building, and the evacuation efficiency of trapped people cannot be improved.

(4) When fire fighters are rescued in case of fire, the number of trapped people in a fire scene is generally confirmed according to feedback information of residents or managers on the scene, and the specific distribution condition of the staff on the fire scene cannot be provided in the prior art, so that the firefighters cannot timely and accurately perform rescue work according to obtained accurate information, and precious rescue time is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists, provide a reliable and comprehensive fire control information sensing system, the inside a plurality of defence area that sets up of fire control information sensing system. The utility model discloses in to the division of every defence area with public areas such as single room or stair, corridor divide, a defence area can all be regarded as to a certain room, a certain set of room, one section corridor or a floor ladder for example. By arranging a wireless network connection mode in each defense area, when a dangerous case occurs and certain sensor terminals such as smoke sensors or temperature sensors cannot be connected with public networks such as broadband and mobile networks, or monitoring hosts cannot be connected with the public networks or private networks, local fire-fighting information local area networks can be formed among each defense area and each defense area through the wireless modules of the sensor networks of the fire-fighting related equipment in each defense area to guide evacuation work of each defense area, the possibility of breakdown of a fire-fighting system caused by fire is avoided, and reliability is improved; in addition, the fire fighting data is acquired or monitored in real time through the sensor terminals such as the smoke sensor, so that whether a fire happens or not can be judged according to the change trend of the fire fighting data such as smoke concentration, and the possibility of false alarm and missed alarm is reduced; meanwhile, the change trend of the fire can be judged according to the change trend of the related fire-fighting data when the fire really happens.

In order to solve the prior art problem, the utility model provides a reconfigurable fire control information sensing system is equipped with a plurality of wireless sensing terminals, a plurality of wireless instruction terminal and a communication concentrator in every defence area in the building, the communication concentrator links to each other with the monitoring host computer through public network or private network etc.. And each wireless sensing terminal, each wireless indicating terminal and each communication concentrator in each defense area are internally provided with a sensing network wireless module, and through the sensing network wireless modules, data transmission can be carried out between the wireless sensing terminals and the wireless indicating terminals in each defense area, between the wireless sensing terminals and the communication concentrators, between the wireless indicating terminals and the communication concentrators, and information interaction can also be carried out between the defense areas.

Reconfigurable fire information sensing system, network reconfiguration under following several kinds of circumstances, under public network or private network available conditions, also when each defence area accessible communication concentrator links to the monitoring host computer, the communication concentrator in each defence area accessible self defence area will defend the sensing data transmission of each sensor in the district and give the monitoring host computer, by the unified control of monitoring host computer, if the communication of the communication concentrator in arbitrary defence area and monitoring host computer breaks off (at this moment have at least one communication concentrator in defence area can link to each other with the monitoring host computer), the first wireless sensing terminal in the defence area of this interrupt communication can be with this defence area sensor monitoring's sensing data transmission through wireless mode on can realizing around with the second wireless sensing terminal in the defence area of monitoring host computer communication, or also can indirectly give sensing data transmission for on the third or fourth wireless sensing terminal in other defence areas earlier, The wireless sensing terminals in other defense areas transmit the sensing data to a second wireless sensing terminal, and the second wireless sensing terminal of the defense area can connect the sensing data of the second wireless sensing terminal and the sensing data of the communication interruption defense area with a monitoring host through a communication concentrator of the defense area; when any wireless sensing terminal loses the connection with the monitoring host, the fire-fighting sensing system can be connected with the wireless sensing terminals of the surrounding or adjacent defense areas to finally realize the reconnection with the monitoring host, so that the reliability of the fire-fighting system is improved; if the public network or the private network is completely disconnected, namely, when the communication concentrator of all or part of the defense areas under the control of the monitoring host cannot communicate with the monitoring host, each defense area can further form a local wireless local area network through a wireless module of the sensing network of each defense area, a wireless sensing terminal in each defense area replaces the monitoring host to control the defense area according to the sensing data of the wireless sensing terminal and the information interacted with the surrounding wireless sensing terminals, specifically, a sensing processor in the wireless sensing terminal in each defense area processes all the monitored and interacted sensing data to generate an indication command and sends the indication command to a wireless indication terminal in a wireless mode, and the indication processor in the wireless indication terminal controls an indicator to work after receiving the indication command. Therefore, when reconnection with the monitoring host cannot be achieved finally, the fire-fighting sensing system can also achieve local fire-fighting information local area network reformation through information interaction between wireless sensing terminals of all defense areas in the fire-fighting sensing system, so that evacuation work of all defense areas is guided, the possibility that the fire-fighting system is paralyzed once the connection of the monitoring host is interrupted is avoided, and the reliability is further improved.

When the wireless sensing terminals in each defense area cannot be connected with the monitoring host, the wireless sensing terminals can also be added into the local fire-fighting information local area network through the wireless signals of the wireless sensing network wireless modules of the wireless sensing terminals by portable electronic terminal equipment such as a mobile phone and a tablet personal computer, so that the control of the relevant defense area is realized again, and the reliability is further improved. Of course, the portable electronic terminal device can be connected to the fire-fighting information sensing system at any other time to control the fire-fighting system.

The wireless sensor terminal comprises a plurality of sensors, a sensing processor and a sensing network wireless module, the wireless indication terminal comprises a plurality of indicators, an indication processor and a sensing network wireless module, and the communication concentrator comprises a communication module, a communication processor and a sensing network wireless module. In case a public or private network is available, i.e. the communication hub is able to connect to a monitoring host, the wireless sensing terminals of all the defense areas send the sensing data monitored by all the sensors to the sensing processor, the sensing processor processes the sensing data and transmits the sensing data to the communication concentrator in a wireless mode through the wireless unit of the sensing network, the communication processor in the communication concentrator transmits the sensing data to the monitoring host computer through the communication module, the monitoring host computer generates an indication command according to the received sensing data and transmits the indication command back to the communication concentrator through the original path, a communication processor within the communication hub wirelessly transmits an indication command to the sensing processor, the sensing processor wirelessly transmits an instruction command to an instruction processor in the wireless processing terminal, the indication processor controls the indicator to guide the fire-fighting evacuation work according to the received indication command.

Furthermore, the utility model provides an among the reconfigurable fire information sensing system, still be provided with a plurality of wireless beepers in each defence area, wireless beeper is including consecutive call button, call processor and sensor network wireless module, and passes through sensor network wireless module realize with the communication concentrator with wireless sensing terminal's communication. When the monitoring host can be contacted, the wireless caller transmits calling information to a wireless sensing terminal in a local defense area, the wireless sensing terminal transmits the calling information to the communication concentrator, or the wireless caller directly transmits the information to the communication concentrator, the calling information is transmitted to the monitoring host through the communication concentrator, and the monitoring host receives any one or more information such as the information of whether trapped persons exist, the position and the number of people according to the calling information, so that rescue personnel can conveniently carry out rescue; when any communication concentrator in the fire-fighting sensing system cannot be connected with the monitoring host, the wireless calling device is connected with the wireless sensing terminals in the surrounding or adjacent defense areas through the wireless sensing terminals in the defense areas to finally realize reconnection with the monitoring host, the calling information in the defense areas is transmitted to the wireless sensing terminals in the other defense areas and is transmitted to the monitoring host through the communication concentrators in the defense areas, when all the defense areas cannot be connected with the monitoring host, the wireless calling device transmits the calling information to the wireless sensing terminals in the defense areas and the sensor processors in the wireless sensing terminals to process the information of trapped persons to form control instructions, and when the wireless sensing terminals in the defense areas are damaged, the information can be transmitted to the wireless sensing terminals in other defense areas, and the wireless sensing terminals of other defense areas realize control, so that the reliability and novelty of the whole fire fighting system are further ensured, and the success rate of rescue is improved.

Preferably, in the utility model provides a sensor in the wireless sensing terminal includes one or more in smoke transducer, combustible gas detector, temperature sensor and the human body detector, whether human body detector has the personnel of being stranded in being used for surveying this defence area to whether will have the personnel of being stranded's information feedback to the monitoring host computer.

The communication hub realizes communication information exchange with the remote monitoring host through the communication module.

The indicator in the wireless indication terminal comprises an escape direction indicator light and/or a loudspeaker, the escape direction indicator light and the loudspeaker are respectively connected with the indication processor, and the escape direction indicator light and the loudspeaker change the escape direction and guide evacuation work by voice according to the indication command received in the indication processor. The escape indication lamps in the plurality of defense areas indicate escape directions according to the received indications, the routes indicated by all the indication lamps can finally form the optimal evacuation route to guide the trapped people to escape, the evacuation route can be timely adjusted according to the actual disaster condition through the indication mode, the escape route and time are reduced, and the escape probability is increased.

More preferred, be different from the smog sensor among the prior art can only survey the function of smog instantaneous value in the defence area, according to the smog concentration at a certain moment report to the police, and can't send the characteristics of specific smog concentration value to the outside, the utility model provides a smog sensor can be in succession or every certain interval time monitoring this smog concentration value in the defence area to the smog concentration value in this defence area that will collect lasts outside transmission, and reports to the police and judges whether to report to the police according to the smog concentration at a certain moment, but whether to report to the police according to the smog concentration value in a period. The smoke sensor in the utility model comprises an optical labyrinth, a smoke chamber, a light emitting diode and a photodiode which are arranged in the optical labyrinth, wherein an included angle is arranged between the light emitting diode and the photodiode, so that when no smoke enters the smoke chamber, the light emitted by the light emitting diode can not or only slightly reach the photodiode, the specific working principle is that a sensing processor in the wireless sensing terminal drives the light emitting diode in the smoke sensor to emit light at intervals of a period of time delta t and transmits a voltage signal generated by the photodiode to the sensing processor, the sensing processor converts the voltage signal to obtain a corresponding smoke concentration value, and sends the smoke concentration value to a monitoring host through a sensing network wireless module for analysis, and the smoke concentration value uploaded by the wireless sensing terminal at intervals of delta t is used for continuously monitoring the smoke concentration value in each defense area discontinuously, the method can provide a basis for analyzing the severity of the disaster and early warning, and can also avoid the occurrence of false alarm caused by interference of other factors; it can be understood that the light emitting diode can also be in a light emitting state all the time, and continuously sends light to the photodiode side, and the photodiode collects data at intervals, and sends the data to the monitoring host computer for analysis after signal conversion to obtain a corresponding smoke concentration value.

When being provided with human body detector in the wireless sensing terminal in the defence area, still be provided with human response lamp in this defence area, human response lamp disposes sensing network wireless module and response lamp treater, with wireless sensing terminal links to each other, detects that this defence area has the man-hour to send the signal for response lamp treater through wireless sensing network when human body detector, response lamp treater control human response lamp shows someone, and convenient monitoring host computer or external rescue personnel know this defence area personnel information. The human body induction lamp can have two modes: one is that at any time, as long as the human body detector detects that the person exists in the defense area, the person is displayed; yet another mode is: only after the wireless sensing terminal gives an alarm, whether a person is present is displayed. The second mode can reduce energy consumption and avoid the induction lamp lighting when a fire disaster does not happen normally. The human body induction lamp can be arranged at places such as windows and door heads of related defense areas and the like which are easy to find by the outside, and rescue workers can conveniently acquire related information when a fire disaster happens. The human body induction lamp light source is red light or yellow light, and the light sources can easily penetrate through a dense fog or smoke area, so that rescuers can observe the light sources conveniently, and the rescue probability of trapped people is increased.

When a combustible gas detector is arranged in a wireless sensing terminal in a defense area, a buzzer is correspondingly arranged in the wireless indicating terminal, and when the combustible gas detector monitors that the concentration of the combustible gas in the defense area exceeds a certain threshold value, the buzzer makes an alarm sound.

The indicator lamp in the indicator in the wireless indication terminal comprises at least one of an escape direction indicator lamp in a corridor and a human body induction lamp for displaying whether people exist in each defense area; the escape direction indicator lamps in the corridor are LED color indicator lamps with arrows, a plurality of escape direction indicator lamps in the plurality of defense areas can form an optimal evacuation route to indicate evacuation, and different modes can be set: the light-on part at night is a safe evacuation channel, the light-off part is a dangerous area, the light-on part at green in the daytime is a safe evacuation channel, and the light-on part at red is a dangerous area; when being provided with human body detector in the wireless sensing terminal, can set up human response lamp in the wireless indication terminal, this defence area personnel information is known to more generous rescue personnel of convenience.

The utility model provides a pair of reconfigurable fire control information sensing system's beneficial effect does:

(1) the method has a network reconfiguration function. When the wireless sensor terminal can be normally connected to the monitoring host, the sensing information of the wireless sensor terminal is sent to the monitoring host, the monitoring host performs centralized control, even if the communication between a defense area and the monitoring host is interrupted, the sensing information in the interrupted defense area can also be wirelessly transmitted to other defense areas, and the sensing information is transmitted to the monitoring host by the other defense areas; when the fire-fighting alarm system cannot be connected to the monitoring host, namely, when all the defense areas cannot realize communication with the monitoring host, each defense area is self-organized to form a local fire-fighting information local area network by relying on the wireless module of the sensor network of the defense area, the wireless sensor terminal in the defense area replaces the position of the monitoring host, not only can the sensing information be monitored, but also the sensing information can be processed to form a control instruction to guide the fire-fighting evacuation work of the defense area, and therefore the possibility that the whole fire-fighting alarm system can normally run under the condition that the monitoring host is available or unavailable is guaranteed.

(2) The utility model provides a smog concentration value in smoke transducer, combustible gas sensor and the temperature sensor homoenergetic continuous monitoring defence area can provide the foundation for analysis disaster severity and early warning, also can avoid causing the emergence of the wrong report condition because of the smog concentration swell that other factors lead to, avoids the erroneous judgement, and whether the judgement that just refers to each sensor continuous monitoring's resultant value can be more accurate takes place the conflagration.

(3) The utility model discloses in a plurality of direction indicator that flee according to the direction of fleing that wireless sensing terminal's control instructed separately, finally can form an optimum evacuation route, guide stranded personnel to flee to can adjust evacuation route according to actual disaster, reduce the distance and time of fleing, increase probability of fleing.

(4) The system can provide various fire-fighting information, can manually call for help through a human body detection sensor or a wireless pager, acquires the information of personnel in the fire scene, provides timely trapped personnel distribution information for the fire fighters, and improves the rescue efficiency; the evacuation route information can be indicated for the trapped people through the wireless indication terminal, and the self-rescue success rate is improved.

(5) The wireless sensing terminal has wireless transmitting and receiving functions, when the monitoring host is controlled, the wireless sensing terminal only needs to send sensing information, and when the monitoring host is interrupted, the wireless sensing terminal also needs to start to replace the monitoring host to realize the control function, so that the wireless sensing terminal can adjust the working mode of the wireless sensing terminal according to the specific working state of the monitoring host, the sensing information can be provided in time, and the power consumption of the wireless sensing terminal is reduced.

Drawings

Fig. 1 is a fire information sensing network diagram of a reconfigurable fire information sensing system provided in a first embodiment of the present invention when all defense areas are connectable to a monitoring host.

Fig. 2 is a diagram of a fire information sensing network when a connection between a partial defense area and a monitoring host is interrupted in a reconfigurable fire information sensing system according to a first embodiment of the present invention.

Fig. 3 is a diagram of a fire information sensing network when connection of all defense areas of the reconfigurable fire information sensing system to the monitoring host is interrupted according to a first embodiment of the present invention.

Fig. 4 is a schematic system structure diagram of a reconfigurable fire information sensing system according to a second embodiment of the present invention.

Fig. 5 is a schematic system structure diagram of a reconfigurable fire information sensing system according to a third embodiment of the present invention.

Fig. 6 is a schematic layout diagram of an optimal evacuation route in a reconfigurable fire information sensing system according to a fourth embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a smoke sensor in a reconfigurable fire information sensing system according to a seventh embodiment of the present invention.

Fig. 8 is a schematic diagram of a smoke sensor in a reconfigurable fire information sensing system according to a seventh embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the following detailed description of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses in divide with single room or stair or corridor space to the division of defence area, for example a certain room, a certain set of room, one section corridor or one deck stair etc. all can regard as a defence area.

The first embodiment is as follows:

the utility model discloses a high, reconfigurable fire information sensing system of reliability divides in the building and has a plurality of defence area, all be equipped with a wireless sensing terminal 1, a wireless indication terminal 2 and a communication concentrator 3 in every defence area, every defence area links to each other with monitoring host 5 through public network, monitoring host 5 adopts the cloud ware, adopts the BS structure, through browser access.

The wireless sensing terminal 1, the wireless indicating terminal 2 and the communication concentrator 3 in each defense area are all internally provided with a sensing network wireless module, wireless connection is formed through the sensing network wireless modules among the wireless sensing terminal 1, the wireless indicating terminal 2 and the communication concentrator 3, data transmission can be carried out among the wireless sensing terminal 1, the wireless indicating terminal 2 and the communication concentrator 3 in each defense area, information exchange can be carried out among the defense areas through wireless networks, the sensing network wireless module in the embodiment adopts a Si4464 sensing network wireless module, and the working frequency range is the ISM frequency range.

The specific operating principle of the reconfigurable fire information sensing system provided by the embodiment is as follows: under the condition that each defense area can be connected to the monitoring host 5, the fire-fighting guidance work of each defense area shown in fig. 1 is centrally controlled by the monitoring host 5, specifically, each defense area can transmit the sensing data of the sensors in the defense area to the monitoring host 5 through the communication hub 3 in the defense area, and receive and feed back the command of the monitoring host 5 to the wireless sensing terminals 1 in each defense area, and then wirelessly transmit the command to the wireless indicating terminals 2 through the wireless modules of the sensing network in the defense area, the wireless indicating terminals 2 guide the evacuation work according to the command, if the communication between the communication hub 3 in any defense area and the monitoring host 5 is interrupted (at least one communication hub 3 in the defense area can be connected with the monitoring host 5), as shown in fig. 2, the wireless sensing terminals 1 in the defense area with interrupted communication can transmit the sensing data monitored by the sensors in the defense area to another surrounding defense area capable of realizing the communication with the monitoring host 5 through a wireless mode On the wireless sensing terminal 1, the wireless sensing terminal 1 in the defense area can transmit the sensing data of the wireless sensing terminal 1 and the communication interruption defense area to the monitoring host 5 through the communication concentrator 3 in the defense area, or the wireless sensing terminal 1 in the defense area with communication interruption indirectly transmits the sensing data to the wireless sensing terminal 1 in other defense areas, and then transmits the sensing data to the wireless sensing terminal 1 in the defense area capable of realizing communication with the monitoring host through the wireless sensing terminal in other defense areas (namely, the wireless sensing terminal 1 has the function of wireless multi-stage relay); when the communication hubs 3 in all the defense areas cannot be connected with the monitoring host 5, as shown in fig. 3, each defense area forms a local wireless local area network through a sensor network wireless module of each defense area, the wireless sensor terminals 1 in each defense area replace the monitoring host 5 according to the sensor data of each defense area and the information interacted with the surrounding wireless sensor terminals 1 to realize the distribution control of each defense area, specifically, the wireless sensor terminals 1 in each defense area process the monitored sensor data and the interacted sensor data to generate an instruction command, and send the instruction command to the wireless indication terminals 2 in a wireless manner, and the wireless indication terminals 2 guide the evacuation work according to the received instruction command. Through the control mode, when any one of the wireless sensing terminals 1 in the fire-fighting sensing system in the building loses connection with the monitoring host 5, the wireless sensing terminals 1 in the surrounding or adjacent defense areas can be connected to finally realize reconnection with the monitoring host 5; when reconnection with the monitoring host 5 cannot be achieved finally, the fire-fighting sensing system can also form a local fire-fighting information local area network again through information interaction between wireless sensing terminals 1 in all defense areas in the fire-fighting sensing system, so that evacuation work of all defense areas is guided, the possibility that the fire-fighting system is paralyzed once the connection with the monitoring host 5 is interrupted is avoided, the reliability of the whole sensing system is improved, the smooth expansion of rescue work in the case of fire disaster is ensured, and the rescue rate is improved.

In this embodiment, one or more wireless sensing terminals 1 and wireless indication terminals 2 in each defense area may be set, specifically, set according to the size of each defense area.

The fire-fighting information sensing system provided by the embodiment has a network reconfiguration function, as shown in fig. 1, when the fire-fighting information sensing system can be normally connected to a monitoring host 5, sensing information of a wireless sensing terminal 1 is all sent to the monitoring host 5 and is centrally controlled by the monitoring host 5, even if communication between a defense area and the monitoring host 5 is interrupted, as shown in fig. 2, the sensing information in the interrupted defense area can also be wirelessly transmitted to other defense areas, and the sensing information is transmitted to the monitoring host 5 by the other defense areas; when the monitoring host 5 cannot be connected, as shown in fig. 3, that is, when all the defense areas cannot realize communication with the monitoring host 5, each defense area relies on the wireless module of the sensing network to form a local fire-fighting information local area network in a self-organized manner, the wireless sensing terminal 1 in the self replaces the position of the monitoring host 5, not only can monitor the sensing information, but also can process the sensing information to form a control instruction to guide the fire-fighting evacuation work of the local defense area, thereby ensuring the possibility that the whole fire-fighting alarm system can normally operate no matter the monitoring host 5 is available or unavailable.

The second embodiment is as follows:

on the basis of the first specific implementation, the present embodiment has additional technical features that as shown in fig. 4, the wireless sensing terminal 1 in each defense area includes a plurality of sensors, a sensing processor 12, and a Si4464 sensor network wireless module, which are connected in sequence, the plurality of sensors in the present embodiment include a photoelectric smoke sensor 10 and a thermistor temperature sensor 11, the sensing processor 12 is an ARM Cortex-M3, the sensing processor 12 is connected to the photoelectric smoke sensor 10 and the thermistor temperature sensor 11 through ADC interfaces respectively, analog measurement values of the sensors are converted into digital signals, the sensing processor 12 is connected to the sensor network wireless module through a serial interface and is connected to the wireless indication terminal 2 and the communication hub 3 through the sensor network wireless module respectively, and indication information is sent to the wireless indication terminal 2, when the monitoring host 5 can be connected, smoke and temperature information is sent to the communication concentrator 3, commands of the monitoring host 5 are received through the communication concentrator 3, when the monitoring host 5 is completely disconnected with each defense area, the monitored sensing information can be processed through the sensing processor 12 in the monitoring host, control instructions are generated according to the information, and the instructions are sent to the wireless sensing terminal 1 through the wireless module of the sensing network to guide evacuation work.

The wireless indication terminal 2 comprises a plurality of indicators, an indication processor 23 and a Si4464 sensor network wireless module, wherein the plurality of indicators in the embodiment comprise an escape direction indicator lamp 21 and a speaker 22, the indication processor 23 is an arm port-M0, the indication processor 23 is respectively connected with the escape direction indicator lamp 21 and the speaker 22, is connected with the sensor network wireless module through a serial interface, acquires indication information through the sensor network wireless module, and controls the indication direction of the escape direction indicator lamp 21 and the speaker 22 to give out alarm sound or voice prompt; the escape direction indicator light 21 is an LED color indicator light with an arrow, and can indicate the evacuation direction of the defense area.

The communication hub 3 comprises a communication module, a communication processor 34 and a Si4464 sensor network wireless module which are connected in sequence, wherein the communication module in the embodiment comprises a wired broadband Ethernet communication module 31, a mobile network 4G communication module 32 and a fixed telephone communication module 33, the communication processor 34 is ARM Cortex-M3, and the communication processor 34 is respectively connected with the wired broadband Ethernet communication module 31 through a hundred mega Ethernet interface, the mobile network 4G communication module 32 through a serial interface and the fixed telephone communication module 33 through a serial interface; when the monitoring host 5 is connectable, the communication processor 34 acquires monitoring sensing information in the wireless sensing terminal 1 of the local defense area through the wireless sensing network module, transmits the information to the monitoring host 5 through the communication module, and the monitoring host 5 uniformly and centrally controls the fire evacuation work of each defense area.

In addition, the monitoring host 5 in this embodiment may be a cloud server in the first embodiment, and also provide another possible implementation manner, where the monitoring host 5 may be a portable electronic terminal device, such as a mobile phone or a tablet computer, and when connection with a cloud service cannot be implemented in each defense area, the mobile phone or the tablet computer adds a wireless signal of a Si4464 sensor network wireless module in each defense area to a local fire information local area network, so as to implement control over the relevant defense area again, and further improve reliability.

The third concrete embodiment:

the utility model discloses the difference between the reconfigurable fire information sensing system that embodiment three provided and embodiment two lies in, as figure 5, not only include a plurality of wireless sensing terminal 1, wireless indication terminal 2 and communication concentrator 3 in each defence area in this embodiment, still include a plurality of wireless calling set 4, wireless calling set 4 is including consecutive call button 41, call processor 42 and Si4464 sensing network wireless module, and pass through sensing network wireless module realize with communication concentrator 3 with wireless sensing terminal 1's communication, wherein, call processor 42 is ARM Cortex-M0.

When a fire disaster occurs, trapped people can operate a call button 41, the call button 41 sends call information to the call processor 42, when the monitoring host 5 can be connected, the wireless caller 4 transmits the call information to the wireless sensing terminal 1 in the local defense area, transmits the call information to the communication hub 3 through the wireless sensing terminal 1 and sends the call information to the monitoring host 5, and the monitoring host 5 receives any one or more information such as the position and the number of people trapped people according to the call information to form a control instruction, so that rescue workers can conveniently carry out rescue work; when the communication concentrator 3 in the local defense area cannot be connected with the monitoring host 5, the wireless caller 4 transmits the calling information in the local defense area to the wireless sensing terminal 1 in another defense area through the wireless transmission between the wireless sensing terminal 1 in the local defense area and the wireless sensing terminal 1 in the surrounding or adjacent defense area, and transmits the calling information to the monitoring host 5 through the communication concentrator 3 in the local defense area; when all defence areas can not be connected with the monitoring host 5, the wireless calling device 4 transmits calling information to the wireless sensing terminal 1 in a wireless transmission mode to process the information of trapped people to form a control instruction, when the wireless sensing terminal 1 in the defence area is damaged, the information can be transmitted to the wireless sensing terminals 1 in other defence areas, and the control is realized by the wireless sensing terminals 1 in other defence areas, so that the reliability and the novelty of the whole fire-fighting network system are further ensured, and the success rate of rescue is improved.

The fourth concrete embodiment:

on the basis of the second specific embodiment, the added features are that, as shown in fig. 6, the escape route indicator in the wireless indicator terminal 2 is a color LED indicator with directional arrows, the escape route indicator can change the escape indication direction according to the command received by the wireless indicator terminal 2, and an optimal evacuation route can be formed by a plurality of escape direction indicators 21 in a plurality of defense areas to guide the trapped people to escape. Further, the color LED indicator in this embodiment is set to be a safe evacuation channel at the bright place of the night light, a dangerous area at the bright place of the night light, a safe evacuation channel at the bright place of the green light, and a dangerous area at the bright place of the red light, so as to further clearly indicate the route, as shown in fig. 6, the route formed by the black arrow represents the safe evacuation channel, and the route formed by the gray arrow represents the dangerous area.

The fifth concrete embodiment:

on the basis of the fourth specific embodiment, the present embodiment is characterized in that, the sensor in the wireless sensing terminal 1 in the present embodiment includes not only a smoke sensor and a temperature sensor, but also a human body detector, and the human body detector is used for detecting whether a person is trapped in the local defense area, and feeding back information of whether the person is trapped to the monitoring host 5.

In addition, another distinguishing feature in this embodiment is that, when being provided with the human body detector in wireless sensing terminal 1 in the defence area, correspond in this defence area and be provided with the human body response lamp, dispose sensor network wireless module and response lamp treater in the human body response lamp, and through sensor network wireless module with wireless sensing terminal 1 links to each other, detects when there is the people in this defence area when the human body detector through response lamp treater control the human body response lamp shows someone, makes things convenient for monitoring host computer 5 or external rescue personnel to know this defence area personnel information.

The present embodiment provides two working modes of the human body induction lamp: one is that at any time, as long as the human body detector detects that the person exists in the defense area, the person is displayed; yet another mode is: only after the wireless sensing terminal 1 gives an alarm, whether a person is present or not is displayed. The second mode can reduce energy consumption and reduce the lighting when a fire alarm does not normally occur. The human body induction lamp can be arranged at places such as windows and door heads of related defense areas and the like which are easy to find by the outside, and rescue workers can conveniently acquire related information when a fire disaster happens. In addition, the light source of the human body induction lamp adopts a red light source or a yellow light source, and the two light sources are easy to penetrate through a dense fog or smoke area, so that rescuers can observe the light sources conveniently, and the rescue probability of trapped people is increased.

The human body induction lamp in this embodiment may also be disposed in the wireless indication terminal 2, and its function is the same as that of an independent human body induction lamp separately disposed in a defense area, but the human body induction lamp and other indicators (escape route indicator and speaker 22) are controlled by the instruction processor 23 in the wireless indication terminal 2.

The sixth specific embodiment:

on the basis of the fifth specific embodiment, the present embodiment is further characterized in that the sensors in the wireless sensing terminal 1 in the present embodiment include not only a smoke sensor, a temperature sensor, and a human body detector, but also a combustible gas detector for detecting a concentration value of combustible gas in a defense area, and meanwhile, a buzzer is correspondingly disposed in the wireless indicating terminal 2. By setting an alarm threshold value of the concentration value of the combustible gas, when the combustible gas detector monitors that the concentration value of the combustible gas in the local defense area exceeds the alarm threshold value, the sensing processor 12 in the wireless sensing terminal 1 can directly send a signal to the buzzer in the wireless indication terminal 2 through the wireless module of the sensing network, and the buzzer is controlled to give out an alarm sound. Considering that the common combustible gas in the fire scene is mainly carbon monoxide, the carbon monoxide detector is selected as the combustible gas detector in the embodiment.

It is understood that the combustible gas detector in this embodiment may also be other combustible gas detectors, and may simultaneously monitor one or more combustible gases, including methane, ethane, ethylene, propylene, acetylene, hydrogen sulfide, phosphine, and the like.

The seventh specific embodiment:

the seventh embodiment of the present invention provides a reconfigurable fire information sensing system, which is different from the smoke sensors in the prior art in that the smoke sensors in the embodiment monitor instantaneous values, alarm according to the smoke concentration at a certain time, and cannot send specific smoke concentration values to the outside, once the monitored value reaches the alarm condition at a certain instant, the alarm system is started, but there is a problem that a false alarm is easily generated when other information interference (such as smoke concentration increase caused by smoking) occurs occasionally, and a false alarm is generated when the smoke concentration at the initial stage of fire does not reach the alarm concentration, which all has a certain influence on fire safety work, and based on this, the smoke sensor provided in this embodiment can monitor the smoke concentration values in a fire area continuously or at certain intervals, and the collected smoke concentration value is continuously transmitted outwards, and whether the alarm is given is judged according to the smoke concentration value within a certain time instead of the smoke concentration value at a certain moment.

Fig. 7 shows a schematic cross-sectional view of such a smoke sensor, which includes an optical labyrinth 71, a smoke chamber 72, an infrared emission tube 73 and a photodiode 74, where the optical labyrinth 71 blocks the entrance of external interference light rays while not affecting the entrance of external smoke into the smoke chamber 72, and after smoke enters the smoke chamber 72 through the optical labyrinth 71, the smoke concentration value in the current room is measured by checking the smoke concentration in the smoke chamber 72.

The specific working principle of the smoke sensor in this embodiment is shown in fig. 8, the sensing processor 12 in the wireless sensing terminal 1 drives the infrared emission tube 73 to emit an infrared light signal at intervals of time Δ t, because an included angle exists between the infrared emission tube 73 and the photodiode 74, the infrared light cannot directly irradiate the photodiode 74 under the condition that no smoke enters the smoke chamber 72, and at this time, only a very small amount of light irradiates the photodiode 74 through diffuse reflection on the inner wall of the smoke chamber 72, so that the photodiode 74 only outputs a very weak voltage signal; when a fire disaster occurs outside and a large amount of smoke is generated, the smoke can enter the smoke chamber 72 through the optical labyrinth 71, and when infrared light emitted by the infrared emission tube 73 irradiates the smoke, the infrared light irradiates the photodiode 74 through the refraction of the smoke, at the moment, the photodiode 74 can generate a voltage signal which is stronger than a smokeless state, and the intensity of the voltage signal is in direct proportion to the concentration of the smoke. The voltage signal is amplified by a signal amplifying circuit and then transmitted to the sensing processor 12, and the sensing processor 12 performs data conversion on the voltage signal to obtain a corresponding smoke concentration value, and sends the smoke concentration value to the monitoring host 5 through a wireless module of the sensing network for analysis.

It can be understood that, in the working mode of the smoke sensor in this embodiment, the infrared transmitting tube 73 may continuously emit infrared light, the photodiode 74 collects voltage signals at intervals of time Δ t, the voltage signals are amplified by a signal amplifying circuit and then transmitted to the sensing processor 12, and the sensing processor 12 performs data conversion on the voltage signals to obtain corresponding smoke concentration values, and sends the corresponding smoke concentration values to the monitoring host 5 through the wireless module of the sensing network for analysis.

Because the data uploaded by the wireless sensing terminal 1 in this embodiment is the smoke concentration value of each time interval Δ t, the monitoring host 5 can calculate the change trend of the smoke concentration of each defense area according to the data uploaded by the wireless sensing terminal 1 for many times, and compared with a smoke alarm in the prior art, which judges whether a fire occurs only according to the instantaneous value of the smoke concentration at a certain time, the scheme has better anti-interference performance and accuracy, and can reduce the occurrence of false alarm and false alarm of the fire.

Through the working method of the smoke sensor provided by the embodiment, the smoke concentration value can be continuously monitored in each defense area through the intermittence, so that the fire information can be found as early as the initial stage of a fire, the fire can be timely relieved, the data basis can be provided for analyzing the severity of the fire and early warning, and meanwhile, the occurrence of the situation of false alarm of the fire caused by interference of other factors can be avoided.

The above embodiments are merely illustrative of the overall contents of the technical solutions of the present invention, and are not intended to limit the present invention. Any person skilled in the art may modify or change the above-described embodiments within the scope of the present invention. Therefore, all equivalent modifications or changes that can be made by a person skilled in the art under the principles and technical ideas of the present invention are covered by the protection scope of the present invention.

Claims (18)

1. A reconfigurable fire-fighting information sensing system is provided with a plurality of defense areas inside, and is characterized in that,

each wireless sensing terminal, the wireless indicating terminal and the communication concentrator in each defense area are internally provided with a sensing network wireless module, so that data transmission can be carried out between the wireless sensing terminal and the wireless indicating terminal, between the wireless sensing terminal and the communication concentrator, between the wireless indicating terminal and the communication concentrator in each defense area, and information interaction can also be carried out between the defense areas;

the communication concentrator is connected with the monitoring host, and each defense area realizes data transmission with the monitoring host through the communication concentrator of each defense area;

if the communication between the communication concentrator in any defense area and the monitoring host is interrupted, the first wireless sensing terminal in the interrupted communication defense area can be wirelessly connected with a second wireless sensing terminal which can be communicated with the monitoring host in another surrounding defense area, or the sensing data in the first wireless sensing terminal can be transmitted to the second wireless sensing terminal through the multi-stage transmission of the wireless sensing terminals in other defense areas which are not the second defense area where the second wireless sensing terminal is located, and finally the first wireless sensing terminal is connected with the monitoring host through the communication concentrator in the second defense area, namely the wireless sensing terminal has the function of multi-stage relay transmission.

2. A reconfigurable fire information sensing system according to claim 1, wherein a first wireless sensing terminal in any defense area with communication interruption with the monitoring host cannot communicate with the monitoring host, and then each defense area without connection forms a local wireless local area network through a wireless module of its own sensing network, and the wireless sensing terminal in each defense area takes over the control of the local defense area by the monitoring host according to its sensing data and information interacted with surrounding wireless sensing terminals.

3. A reconfigurable fire information sensing system according to claim 1 or 2, wherein the fire information sensing system can be joined through a portable electronic terminal device via a communication hub.

4. A reconfigurable fire information sensing system according to claim 1 or 2, wherein the wireless sensing terminal further includes a plurality of sensors and a sensing processor, the wireless indicating terminal includes a plurality of indicators and an indication processor, and the communication hub includes a communication module and a communication processor.

5. A reconfigurable fire information sensing system according to claim 4, wherein a plurality of wireless beepers are further provided in each defense area, the wireless beepers include a call button, a call processor and a sensing network wireless module which are connected in sequence, and communication with the communication hub and the wireless sensing terminal is realized through the sensing network wireless module.

6. A reconfigurable fire information sensing system according to claim 4, wherein the sensors within the wireless sensing terminal include one or more of smoke sensors, combustible gas detectors, temperature sensors and body detectors.

7. A reconfigurable fire information sensing system according to claim 4, wherein the communication module in the communication hub includes at least one of a wired broadband Ethernet communication module, a mobile network communication module and a fixed telephone communication module, and the communication hub implements communication information exchange with the remote monitoring host through the communication module.

8. A reconfigurable fire information sensing system according to claim 4, wherein the indicator in the wireless indication terminal further includes an escape direction indicator light and/or a speaker, the escape direction indicator light and the speaker are respectively connected to the indication processor, and change the escape direction and instruct evacuation work by voice according to the indication command received in the indication processor.

9. A reconfigurable fire information sensing system according to claim 8, wherein the escape direction indicator lights in the plurality of zones indicate escape directions according to respective received indication commands, and the routes indicated by all of the escape direction indicator lights can finally form an optimal evacuation route to guide the trapped people to escape.

10. A reconfigurable fire information sensing system according to claim 6, wherein the smoke sensor includes an optical maze and a smoke chamber disposed within the optical maze, wherein a light emitting diode and a photodiode are disposed within the smoke chamber, and an angle exists between the light emitting diode and the photodiode such that light emitted by the light emitting diode does not impinge directly on the photodiode without smoke entering the smoke chamber.

11. A reconfigurable fire information sensing system according to claim 6, wherein when a human body detector is arranged in a wireless sensing terminal in a defence area, a human body sensing lamp is further arranged in the defence area, the human body sensing lamp is provided with a sensing network wireless module and a sensing lamp processor and is connected with the wireless sensing terminal, when the human body detector detects that a person exists in the defence area, a signal is transmitted to the sensing lamp processor through the wireless sensing network, and the sensing lamp processor controls the human body sensing lamp to display the person.

12. A reconfigurable fire information sensing system according to claim 11, wherein the body-sensing lights have two display modes: one is that at any time, as long as the human body detector detects that the person exists in the defense area, the person is displayed; one is that only after the wireless sensing terminal gives an alarm, whether a person is present is displayed.

13. A reconfigurable fire information sensing system according to claim 12, wherein the body-sensing lights are positioned at windows or door heads in the defence area and the light source is red or yellow.

14. A reconfigurable fire information sensing system according to claim 6, wherein when a combustible gas detector is disposed in a wireless sensing terminal in a defense area, a buzzer is correspondingly disposed in the wireless indicating terminal, and when the combustible gas detector detects that the concentration of combustible gas in the defense area exceeds a certain threshold, the buzzer makes an alarm.

15. A reconfigurable fire information sensing system according to claim 8, wherein the escape direction indicator light is an arrowed LED color indicator light.

16. A reconfigurable fire information sensing system according to claim 15, wherein the escape direction indicator lights are provided with different modes: the light is bright for safe evacuation passageway night, and the department that goes out is the danger zone, and the green light is bright for safe evacuation passageway daytime, and the red light is bright for the danger zone.

17. A reconfigurable fire information sensing system according to claim 11, wherein the human body sensor lights are disposed in the wireless indication terminal and share the sensor network wireless module in the wireless indication terminal.

18. A reconfigurable fire information sensing system according to claim 2, wherein the local wireless lan can be joined through a portable electronic terminal device via a communications hub.

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