CN110428573A - High-rise direct-furnish cell cable shaft security against fire based on Beidou technology monitors system - Google Patents

Abstract

The invention discloses a high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology, including a central processing module, a communication management machine, an automatic fire extinguishing device and a circuit protection switch. The central processing module is connected with the communication management machine and the automatic fire extinguishing device respectively. The two-way connection is realized with the circuit protection switch, the two-way connection is realized between the central processing module and the data acquisition unit, and the data acquisition unit is composed of N data monitors. The invention relates to the technical field of safety monitoring. The Beidou technology-based high-rise direct-supply community cable shaft fire safety monitoring system can realize the first information accurate to the unit floor when a fire occurs, thereby shortening the time and process of passively discovering dangers and greatly improving the confined environment space Small, poor heat dissipation and ventilation, weak communication signals, and difficult to discharge moisture. The requirements for smart fire protection are higher, the layout space is smaller, the equipment density is more compact, and the technical requirements are higher.

Description

Fire Safety Monitoring System for Cable Shafts of High-rise Direct Supply Community Based on Beidou Technology

technical field

The invention relates to the technical field of safety monitoring, in particular to a fire safety monitoring system for cable shafts in high-rise direct supply communities based on Beidou technology.

Background technique

In recent years, there have been frequent fire incidents in high-rise buildings in domestic and foreign communities, and once a fire alarm occurs, the death rate is higher than other fire accidents. The cable shaft directly supplied to the community in the high-rise is used as a public cable, and there are few human-made repairs in the case of no failure. Its maintenance and prevention, and the power supply lines, power supply equipment and metering devices are mostly caused by improper use by customers or use beyond the rated metering capacity, as well as cable aging and insulation characteristics reduction caused by environmental influences, which are the main factors leading to frequent fire accidents one.

There are safety issues such as fires in the cable shafts of high-rise direct supply communities. Therefore, designing a system for real-time monitoring of safety hazards or accidents in the cable shafts of high-rise direct supply communities has become the first choice for the safety monitoring of cable shafts in high-rise direct supply communities. It is a necessary means, because the safety of the cable shaft of the high-rise direct supply community involves multiple regulatory departments or units, once an accident or potential safety hazard occurs, the departments of fire protection, power supply, telecommunications, television, property and other departments must be notified in time to take corresponding measures.

The existing high-rise direct-supply residential cable shafts include the following defects:

1. It is a closed environment when no one is there, and it is easy to accumulate dust;

2. Poor ventilation and heat dissipation;

3. The external wireless communication signal is weak;

4. When damp, the moisture is difficult to discharge;

5. Small space and many internal cables;

6. When a fire occurs, the location of the fire cannot be determined in time.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a fire safety monitoring system for high-rise direct supply community cable shafts based on Beidou technology, which solves the problem that the external wireless communication signal of the existing high-rise direct supply shaft is weak, and when it is damp, the moisture is difficult to discharge and the space Small size, many internal cables, when a fire breaks out, it is impossible to determine the location of the fire in time.

(2) Technical solutions

In order to achieve the above object, the present invention is realized through the following technical proposals: the high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology, including a central processing module, a communication management machine, an automatic fire extinguishing device and a circuit protection switch, the central processing The modules are respectively connected to the communication management machine, the automatic fire extinguishing equipment and the circuit protection switch. The central processing module is connected to the data acquisition unit in a two-way manner, and the data acquisition unit is composed of N data monitors. The central processing module is respectively The two-way connection is realized with the Beidou timing module and the Beidou positioning module, and the output end of the central processing module is connected with the input end of the sound and light alarm unit.

Preferably, the data monitor is installed in the shaft of each floor, and the collected data is sent to the communication management machine through RS485.

Preferably, the communication management machine realizes wireless two-way connection with the cloud monitoring management platform through a wireless network.

Preferably, the communication management machine is installed on the roof, and reads the data of the data monitor through RS485 and sends it to the cloud monitoring management platform through the communication network.

Preferably, the communication management machine includes a communication management MCU, and the communication management MCU is connected with the mobile communication module, the WIFI module, the LORA module, the LAN module, the Beidou module, the power input module, the first RS485 interface, the second RS485 interface and The third RS485 interface realizes bidirectional connection.

Preferably, the shaft monitoring instrument includes a shaft acquisition MCU, and the shaft acquisition MCU is connected to a temperature and humidity sensor, a gas sensor, an electric leakage sensor, an air pressure sensor, a grounding detection module, a thermocouple sensing module, a power supply access module, and an RS485 interface respectively. , DI interface and DO interface realize bidirectional connection.

Preferably, the input end of the central processing module is electrically connected to the output end of the power module, and the output end of the power module is respectively electrically connected to the input ends of the communication management machine, the data acquisition unit, the automatic fire extinguishing equipment and the circuit protection switch .

Preferably, the input terminals of the data acquisition unit are respectively connected to the input terminals of the automatic fire extinguishing equipment and the circuit protection switch.

Preferably, the central processing module is bidirectionally connected to the data storage unit.

(3) Beneficial effects

The invention provides a high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology. Compared with the prior art, it has the following beneficial effects:

(1) The high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology realizes two-way connection between the central processing module and the data acquisition unit, and the data acquisition unit is composed of N data monitors, and the central processing modules are respectively It realizes two-way connection with the Beidou timing module and Beidou positioning module, and the output end of the central processing module is connected with the input end of the sound and light alarm unit, which can realize the monitoring of electrical fire hazards, grounding hazards, indoor environment temperature and humidity, the floor to which the monitoring point belongs, Indoor gas or smoke and when a fire accident occurs, turn on the electric well fire extinguishing ball, collect data on various states in the shaft within a set time interval, preprocess the data, add time and space attributes to the on-site data, and the time is determined by Beidou timing For calibration, the space is composed of Beidou position and floor height, and the collected data is sent to the cloud through the communication network for related processing.

(2) The fire safety monitoring system for high-level direct-supply community cable shafts based on Beidou technology includes a communication management MCU in the communication management machine, and the communication management MCU is connected with the mobile communication module, WIFI module, LORA module, LAN module, and Beidou module respectively. , power input module, the first RS485 interface, the second RS485 interface and the third RS485 interface to realize two-way connection. The detection module, thermocouple sensing module, power access module, RS485 interface, DI interface and DO interface realize two-way connection, which can realize the first information accurate to the unit floor when a fire occurs, so that the passive detection of dangerous situations can be done quickly. and shorten the process.

(3) The fire safety monitoring system for high-rise direct-supply community cable shafts based on Beidou technology is electrically connected to the output end of the power module at the input end of the central processing module, and the output end of the power module is respectively connected to the communication management machine, The input terminals of the data acquisition unit, the automatic fire extinguishing equipment and the circuit protection switch are electrically connected, the input terminals of the data acquisition unit are respectively connected with the input terminals of the automatic fire extinguishing equipment and the circuit protection switch, and the central processing module and the data storage unit are bidirectionally connected. Greatly improve the airtight environment with small space, poor heat dissipation and ventilation, weak communication signal, and difficult to discharge moisture. The requirements for smart fire protection are higher, the layout space is smaller, the equipment density is more compact, and the technical requirements are higher.

Description of drawings

Fig. 1 is the structural principle block diagram of the system of the present invention;

Fig. 2 is the structural principle block diagram of communication management machine of the present invention;

Fig. 3 is the structural principle block diagram of shaft monitoring instrument of the present invention;

Fig. 4 is a schematic diagram of the installation arrangement of the communication management machine and the shaft monitoring instrument of the present invention.

In the figure, 1 central processing module, 2 communication management machine, 21 communication management MCU, 22 mobile communication module, 23 WIFI module, 24 LORA module, 25 LAN module, 26 Beidou module, 27 power input module, 28 first RS485 interface, 29 second RS485 interface, 210 third RS485 interface, 3 automatic fire extinguishing equipment, 4 circuit protection switch, 5 data acquisition unit, 6 data monitor, 61 shaft acquisition MCU, 62 temperature and humidity sensor, 63 gas sensor, 64 leakage sensor, 65 Air pressure sensor, 66 Grounding detection module, 67 Thermocouple sensing module, 68 Power access module, 69 RS485 interface, 610 DI interface, 611DO interface, 7 Beidou timing module, 8 Beidou positioning module, 9 Sound and light alarm unit, 10 Cloud monitoring management platform, 11 power modules, 12 data storage units.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-4, the embodiment of the present invention provides a technical solution: a high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology, including a central processing module 1, a communication management machine 2, an automatic fire extinguishing device 3 and circuit protection Switch 4, communication management machine 2 adopts high-performance industrial-grade wireless module, high-performance industrial-grade 32-bit enhanced processor, built-in real-time clock (RTC), ABS flame-retardant shell, and wide power input is AC 90-242V, WDT watchdog design to ensure system stability Input power with over-current protection and over-voltage protection, while using industrial terminal interface, especially suitable for industrial field applications Provide RS485 interface, can directly communicate with the supporting shaft collector Provide 4G/5G/WIFI /LAN/LORA/NB-IoT and other Internet of Things communications support serial software upgrades and remote maintenance. It has powerful functions, can support large-capacity storage expansion, and provides data space-time attributes based on Beidou technology. The central processing module 1 and communication management Machine 2, automatic fire extinguishing equipment 3 and circuit protection switch 4 realize two-way connection, central processing module 1 and data acquisition unit 5 realize two-way connection, and data acquisition unit 5 is made up of N data monitors 6, shaft acquisition instrument 6 adopts High-performance industrial-grade 32-bit enhanced processor, built-in real-time clock (RTC), using ABS flame-retardant shell, wide power input AC 90-242V), and stable and reliable, WDT watchdog design to ensure stable system input power with over Current protection and overvoltage protection, while using industrial terminal interface, especially suitable for industrial field applications Provide RS485 interface, easy to install, support serial port software upgrade and remote maintenance, and powerful, provide 3 leakage input / current waveform monitoring input, 1 One channel of ambient temperature acquisition, one channel of humidity acquisition, one channel of gas acquisition, one channel of air pressure acquisition, four channels of PT100 thermocouple acquisition, one channel of ground detection acquisition, one channel of fire extinguishing device status monitoring input, and one channel of RS485 providing 1 channel of fire extinguishing device control Output, 1-way control power supply cut-off output, the central processing module 1 is connected with the Beidou timing module 7 and the Beidou positioning module 8 respectively, and the output end of the central processing module 1 is connected with the input end of the sound and light alarm unit 9, and the data monitor 6 is installed in the shaft of each floor, and the collected data is sent to the communication management machine 2 through RS485, the communication management machine 2 realizes the wireless two-way connection with the cloud monitoring management platform 10 through the wireless network, and the communication management machine 2 is installed on the roof, and Read the data of data monitor 6 by RS485 and send to cloud monitoring and management platform 10 by communication network, communication management machine 2 comprises communication management MCU21, and communication management MCU21 is respectively connected with mobile communication module 22, WIFI module 23, LORA module 24, LAN Module 25, Beidou module 26, power input module 27, first RS485 interface 28, second RS485 interface 29 and third RS485 interface 210 realize two-way connection, mobile communication module 22 is 4G or 5G communication, shaft monitor 6 packs Including the shaft acquisition MCU61, the shaft acquisition MCU61 is respectively connected with the temperature and humidity sensor 62, gas sensor 63, leakage sensor 64, air pressure sensor 65, ground detection module 66, thermocouple sensing module 67, power access module 68, RS485 interface 69, DI Interface 610 and DO interface 611 realize bidirectional connection, the model of gas sensor 63 is iS-MM-VOCs-4D, and it is a miniature metal oxide semiconductor gas sensor based on MEMS micro-hot plate technology, which is used to detect organic volatile substances in the air. VOCs, the production of gas sensor 65 combines MEMS silicon substrate technology, thin film technology, thick film technology, ceramic packaging technology, and the skeleton gas sensitive layer is deposited on the top of the micro-hot plate and the interdigital electrodes, thus producing a dependence on Conductivity of harmful gas concentration, the sensor has the following characteristics: high sensitivity to VOCs (0.1-1000ppm), fast response (10Sec.), very low power consumption (32-36mW), ultra-small size (3.8mm×3.8mm ×1.5mm), long life (>3 years), optimized design for gas detector application, reflow soldering possible , ethylbenzene, xylene and styrene, etc., the relative standard deviation of the method for these five components is between 2.15%-2.81%, the input end of the central processing module 1 is electrically connected with the output end of the power supply module 11, and The output end of the power supply module 11 is electrically connected to the input end of the communication management machine 2, the data acquisition unit 5, the automatic fire extinguishing equipment 3 and the circuit protection switch 4 respectively, and the input end of the data acquisition unit 5 is respectively connected to the automatic fire extinguishing equipment 3 and the circuit protection switch 4. The input end of the switch 4 is connected, the central processing module 1 and the data storage unit 12 are connected bidirectionally, and the model of the temperature and humidity sensor 62 is DHT11, which is a temperature and humidity sensor with calibrated digital signal output, and its accuracy is +-5% RH , temperature +-2°C, range humidity 20-90%RH, temperature 0-50°C, the model of the air pressure sensor 65 is BOSCH, which is a new digital air pressure sensor, which is widely used in atmospheric pressure collection places, because the altitude is closely related to the atmosphere Pressure and ambient temperature are related, so it is also widely used in outdoor/indoor height positioning purposes. The thermocouple temperature sensor 67 is a PT100 temperature sensor, which is an instrument that converts temperature variables into standardized output signals that can be transmitted. It is mainly used for Measurement and control of temperature parameters in industrial processes. The temperature collection range can be -200°C-+850°C. The cable leakage sensor 64 is a current sensor, which is installed on the AC loop line by surrounding it. When the device is running, it can detect the AC current signal output by each AC loop sensor in real time. When the line When the situation is normal, the sum of the current flowing through the sensor is 0. When there is leakage in the line, the leakage current sensor has a differential current flowing, and the output of the sensor is not zero. Therefore, by detecting the output signals of the sensors of each loop, it is possible to judge whether there is an electric leakage in the line. The grounding detection module 66 is in the internal facilities of the shaft. There are many facilities that must be grounded during installation, but due to construction errors by workers or long-term unmanned management. The facility is not connected to the ground, which may cause potential safety hazards. A ground detection module is designed inside the collector to detect whether the facility is properly grounded.

During use, at first the shaft monitoring instrument 6 is installed in the shaft of each floor, and the communication management machine 2 is installed on the roof, and then electrically connected between the shaft monitoring instrument 6 of each floor and the communication management machine 2 by conductive wires , and then start the power supply module 11 to supply power for the data acquisition unit 5, the central processing module 1, the communication management machine 2, the automatic fire extinguishing equipment 3 and the circuit protection switch 4 respectively, and respectively provide the shaft monitoring through the power input module 68 and the power input module 27. The instrument 6 and the communication management machine 2 supply power, and then the shaft acquisition MCU61 in the shaft monitoring instrument 6 is used to control the temperature and humidity sensor 62, the gas sensor 63, the leakage sensor 64, the air pressure sensor 65, the grounding detection module 66 and the thermocouple sensing module 67 Separately collect shaft electrical fire monitoring data, shaft environment temperature and humidity data, shaft gas or smoke data, shaft grounding detection data, and air pressure detection data, and send them to the communication management machine 2 through the RS485 interface, and at the same time through the DI interface 610 and DO interface 611 Connect with the Beidou timing module 7 and the Beidou positioning module 8 to complete the time and space positioning of the floor position of each shaft monitor 6, collect data on the height of the shaft floor, and simultaneously pass the collected data through the communication management MCU21 inside the communication management machine 2 , mobile communication module 22, WIFI module 23, LORA module 24, LAN module 25, Beidou module 26, the first RS485 interface 28, the second RS485 interface 29 and the third RS485 interface 210 are wirelessly transmitted to the cloud monitoring management platform 10, so that Remote monitoring by monitoring personnel.

When a fire accident is found, when the fire occurs, the collector will open the fire extinguishing device to start the fire extinguishing action at the first time, and check whether the fire extinguishing device is normally opened. The output signal is 24V DC relay power signal, and the input detection signal is dry contact, thus starting The automatic fire extinguishing equipment 3 is used to extinguish the fire. When a fire occurs, the collector outputs a dry contact signal to drive the contactor to cut off the power supply, and when a shaft safety accident is found, the system will self-test, and the central processing module 1 will control the circuit protection switch 4 to cut off the power supply. And through the acousto-optic alarm unit 9 to prompt the alarm, so that the operator is in time for the abnormal situation of the equipment operation, and avoids unnecessary failures. At the same time, the central processing module 1 will control the data storage unit 12 to store the data of the entire system, thus completing the process. The entire working process of the fire safety monitoring system for cable shafts in high-rise direct-supply communities based on Beidou technology.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. A fire safety monitoring system for cable shafts in high-rise direct supply communities based on Beidou technology, including a central processing module (1), a communication management machine (2), automatic fire extinguishing equipment (3) and a circuit protection switch (4). The module (1) realizes two-way connection with the communication management machine (2), the automatic fire extinguishing equipment (3) and the circuit protection switch (4) respectively, and it is characterized in that: the central processing module (1) and the data acquisition unit (5) realize Two-way connection, and the data acquisition unit (5) is made up of N data monitors (6), and the central processing module (1) realizes two-way connection with the Beidou timing module (7) and the Beidou positioning module (8) respectively, and The output end of the central processing module (1) is connected with the input end of the sound and light alarm unit (9). 2. The high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the data monitor (6) is installed in the shaft of each floor, and the collected data is passed through RS485 Sent to the communication management machine (2). 3. The high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: said communication management machine (2) realizes wireless two-way through wireless network and cloud monitoring management platform (10) connect. 4. The high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the communication management machine (2) is installed on the roof, and the data monitor ( 6) and send to the cloud monitoring and management platform (10) through the communication network. 5. the high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the communication management machine (2) includes a communication management MCU (21), and the communication management MCU ( 21) respectively with mobile communication module (22), WIFI module (23), LORA module (24), LAN module (25), Beidou module (26), power input module (27), first RS485 interface (28), The second RS485 interface (29) and the third RS485 interface (210) realize bidirectional connection. 6. the high-rise direct supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the shaft monitor (6) includes a shaft acquisition MCU (61), and the shaft acquisition MCU ( 61) respectively with temperature and humidity sensor (62), gas sensor (63), leakage sensor (64), air pressure sensor (65), ground detection module (66), thermocouple sensor module (67), power access module ( 68), RS485 interface (69), DI interface (610) and DO interface (611) realize bidirectional connection. 7. The high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the input end of the central processing module (1) is electrically connected to the output end of the power supply module (11) connected, and the output end of the power module (11) is electrically connected to the input end of the communication management machine (2), the data acquisition unit (5), the automatic fire extinguishing equipment (3) and the circuit protection switch (4). 8. The high-rise direct-supply community cable shaft fire safety monitoring system based on Beidou technology according to claim 1, characterized in that: the input end of the data acquisition unit (5) is connected with the automatic fire extinguishing equipment (3) and circuit protection respectively The input terminal of the switch (4) is connected. 9. The Beidou technology-based cable shaft fire safety monitoring system for high-rise direct-supply communities according to claim 1, characterized in that: the central processing module (1) and the data storage unit (12) realize bidirectional connection.