Multi-data fusion type linear temperature-sensitive fire detector

Abstract

The invention discloses a multi-data fusion type linear temperature-sensitive fire detector, which relates to the technical field of temperature-sensitive sensors and comprises a sensor module, a signal processing unit, a controller module, a data communication unit and an address coding unit, the system also comprises a temperature sensing optical fiber, a temperature sensing cable, a data transmission unit, an address identification and state detection unit, a processor module, and a fire identification and display unit. The fire hazard condition in a monitoring area can be collected in real time through the temperature sensing optical fiber, the temperature sensing cable and the sensor module, the temperature can be actively measured, the detection precision is more accurate, the real fire hazard condition in the monitoring area is comprehensively analyzed and judged by combining the temperature information of the temperature sensing cable and the temperature sensing optical fiber, the fire hazard detection accuracy and reliability are improved, and the fire hazard detection efficiency is improved. The fire hazard loss is reduced to the minimum, the cost performance of the detector is greatly improved, and therefore the defects that an existing detector is single in sensing mechanism, poor in detection accuracy and reliability and incapable of achieving positioning detection are overcome.

Description

Technical Field

[0001] This invention relates to the field of temperature sensor technology, and more particularly to a multi-data fusion linear temperature fire detector. Background Technology

[0002] With the rapid development of the world economy, various underground and above-ground tunnels, large-space and large-support factory buildings, and places with explosion hazards are characterized by complex fire-generated products and harsh natural environments. Moreover, the special building structures of these places directly affect the accurate detection of fires. Therefore, although automatic fire alarm systems have been installed in the production sites of power, metallurgy, and petrochemical enterprises, they are still not very effective in accurately detecting the initial fires in some special places. These special places have become important factors affecting the safe production of industrial and mining enterprises.

[0003] Due to the unique environmental and architectural layout of these special locations, conventional point-type fire detectors are not suitable. Currently, the main method for fire detection in these special locations is to use single-parameter fire detectors. These mainly include: heat detectors, smoke detectors, point-type flame detectors, and combustible gas detectors. However, these detectors all have some drawbacks in practical applications. From the moment a fire ignites, it produces various phenomena in the surrounding environment, collectively known as fire characteristics. Generally, fire processes mainly exhibit several typical fire characteristics, such as smoke release characteristics, heat release characteristics, light release characteristics, and gas change characteristics. By real-time monitoring and analysis of changes in environmental parameters corresponding to these fire characteristics within the protected area, fire detection and alarms can be achieved in specific locations. Currently, existing fire detectors detect fires by monitoring changes in single temperature, smoke, and gas information within the protected area. This single sensing mechanism is often affected by changes in environmental parameters similar to fire characteristics, leading to false alarms. Furthermore, current fire detectors all utilize the spatial effect caused by the overall change of specific fire characteristic parameters in the monitored area to detect fires in that area. For example, linear beam smoke detectors utilize the attenuation of the detector's light path caused by the diffusion of smoke generated during a fire to detect fires in a specific protected area. Unlike point detectors, these detectors cannot determine the change of a specific "fire characteristic" parameter through a specific installation location, meaning they cannot display the specific location of abnormal sections. For narrow and elongated protected areas such as cable tunnels, once an alarm is triggered, fire management personnel cannot promptly and accurately determine the specific location of the fire hazard, making it impossible to take corresponding emergency measures quickly and potentially wasting valuable rescue time. Several other disadvantages of single-parameter linear fire detectors are: beam smoke detectors are difficult to debug and install; even slight vibrations at the site can cause the normally emitted parallel beam to misalign, leading to false fire alarms; linear heat detectors mainly collect changes in insulation resistance, and due to the inherent characteristics of material changes and deterioration, the insulation characteristics become discrete, resulting in unreliable and unstable basic sensor performance; another disadvantage is that when the detector is used in conjunction with an automatic fire suppression system, it requires the combination of two or more detectors to make a judgment before the fire suppression system can be activated, thus more than doubling the cost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-data fusion linear heat-sensing fire detector to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A multi-data fusion linear heat-sensing fire detector includes a data acquisition terminal composed of multiple heat sensors connected in parallel, and a data monitoring terminal connected to the data acquisition unit. Each heat sensor includes a sensor module, a signal processing unit, a controller module, a data communication unit, and an address encoding unit. The output of the sensor module is connected to the input of the signal processing unit, and the output of the signal processing unit is connected to the input of the controller module. The controller module is electrically connected to both the data communication unit and the address encoding unit. The signal processing unit includes a data acquisition circuit, a signal conditioning circuit, and an A / D converter. The data acquisition circuit is connected to the control module sequentially via the signal conditioning circuit and the A / D converter. Among them, the data acquisition terminal is used to solidify the address code of the displacement identifier as the address identification code of the temperature sensor through the address encoding unit, providing a unique address identification code representing the physical location; The signal processing unit performs signal preprocessing and A / D conversion on the analog signals acquired by the sensor module; and the address encoding unit obtains the address digital encoding; the analog signals and address encoding are packaged into a complete data frame and then uploaded to the controller module.

[0006] As a further preferred embodiment of the multi-data fusion linear temperature-sensing fire detector of the present invention, the sensor module adopts a temperature sensor, but can also adopt a combustible gas type sensor, smoke sensor, flame sensor and video image sensor.

[0007] As a further preferred embodiment of the multi-data fusion linear heat-sensing fire detector of the present invention, the data monitoring terminal includes a heat-sensing optical fiber, a heat-sensing cable, a data transmission unit, an address identification and status detection unit, a processor module, and a fire identification and display unit; the heat-sensing optical fiber, the heat-sensing cable, the data transmission unit, the address identification and status detection unit, and the fire identification and display unit are respectively connected to the processor module; The data communication unit is used by each sensor to transmit digital signals and address information of gas, smoke, temperature, and flame parameters collected in the monitoring area to the processor module in a time-division manner. The processor module analyzes and determines whether a fire has occurred, and displays and alarms the processing results through the fire identification and display unit.

[0008] As a further preferred embodiment of the multi-data fusion linear heat-sensing fire detector of the present invention, the processor module analyzes and determines whether a fire has occurred, and the processing results are displayed and alarmed through the fire identification and display unit, as follows: The processor module receives digital signals and address information changes of gas, smoke, temperature, and flame parameters from each sensor in the monitored area according to a time sequence. After comprehensive analysis and judgment based on the temperature information from the temperature sensing cable and the temperature sensing fiber, it determines whether there is a real fire hazard in the monitored area. If the abnormal situation is confirmed, it drives the fire identification and display unit to output information and displays the location of the abnormal section in a loop. When the transmission line of the multi-data fusion linear temperature sensor or the independent composite sensor is damaged, the processor module will drive the fault information output and display the location of the fault section. Each multi-data fusion linear temperature sensor has a fixed address code. The microprocessor interface identifies the geographical location of each multi-data fusion linear temperature sensor in the multi-data fusion fire detector by calling the address information of the multi-data fusion linear temperature sensor, thereby determining the specific location of abnormal sections in the protected area, realizing the location detection of abnormal sections in the monitoring area, and displaying it on the fire identification and display unit, which greatly facilitates the management and maintenance of firefighters.

[0009] As a further preferred embodiment of the multi-data fusion linear heat-sensing fire detector of the present invention, the conductor of the heat-sensing cable is coated with a barrier layer, and the barrier layer is made of NTC or PTC characteristic material, where NTC has a negative temperature coefficient and PTC has a positive temperature coefficient.

[0010] As a further preferred embodiment of the multi-data fusion linear heat-sensing fire detector of the present invention, it also includes a power supply module for supplying power to the multi-data fusion linear heat-sensing fire detector, which is used to provide the electrical energy required by the multi-data fusion linear heat-sensing sensor.

[0011] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: This invention discloses a multi-data fusion linear temperature-sensing fire detector, comprising multiple multi-data fusion linear temperature-sensing sensors connected in parallel. Each multi-data fusion linear temperature-sensing sensor includes a sensor module, a signal processing unit, a controller module, a data communication unit, and an address encoding unit. It also includes a temperature-sensing optical fiber, a temperature-sensing cable, a data transmission unit, an address identification and status detection unit, a processor module, and a fire identification and display unit. This invention, through the temperature-sensing optical fiber, temperature-sensing cable, and sensor module, can collect real-time data on fire hazards within the monitored area, enabling active temperature measurement and improving detection accuracy. The processor module receives digital signals and address information changes from each sensor regarding gas, smoke, temperature, and flame parameters in the monitored area. Combining this with the temperature information from the temperature-sensing cable and optical fiber, the processor module comprehensively analyzes and judges whether a real fire hazard has occurred in the monitored area, thus increasing the accuracy and reliability of fire detection, minimizing fire losses, and greatly improving the detector's cost-effectiveness. This avoids the shortcomings of existing detectors, which have a single sensing mechanism, poor accuracy and reliability, and are unable to achieve location detection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a multi-data fusion linear heat-sensing fire detector according to the present invention. Figure 2 This is a schematic diagram of the structure of a multi-data fusion linear temperature sensor for a multi-data fusion linear temperature fire detector according to the present invention. Figure 3 This is a structural schematic diagram of the data monitoring terminal for a multi-data fusion linear heat-sensing fire detector according to the present invention. Figure 4 This is a schematic diagram of the monitoring terminal for a multi-data fusion linear heat-sensing fire detector according to the present invention. Detailed Implementation

[0013] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings: The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] A multi-data fusion linear heat-sensing fire detector, such as Figure 1 and Figure 3As shown, the invention includes a data acquisition terminal composed of multiple multi-data fusion linear temperature sensors connected in parallel, and a data monitoring terminal connected to the data acquisition unit. The data acquisition terminal also includes a data transmission unit, an address identification and status detection unit, a processor module, and a fire identification and display unit. The data transmission unit, address identification and status detection unit, and fire identification and display unit are respectively connected to the processor module. This invention can collect real-time data on fire hazards in the monitoring area through temperature-sensing optical fibers, temperature-sensing cables, and sensor modules. It can actively measure temperature and improve detection accuracy, thereby determining the actual fire hazard situation in the monitoring area. This increases the accuracy and reliability of fire detection, minimizes fire losses, and greatly improves the cost-effectiveness of the detector. This avoids the shortcomings of existing detectors, such as their single sensing mechanism, poor detection accuracy and reliability, and inability to achieve location detection.

[0015] like Figure 1 As shown, the multi-data fusion linear temperature sensor includes a sensor module, a signal processing unit, a controller module, a data communication unit, and an address encoding unit. The output terminal of the sensor module is connected to the input terminal of the signal processing unit, and the output terminal of the signal processing unit is connected to the input terminal of the controller module. The controller module is electrically connected to both the data communication unit and the address encoding unit. Figure 2 As shown, the signal processing unit includes a data acquisition circuit, a signal conditioning circuit, and an A / D converter. The data acquisition circuit is connected to the control module in sequence through the signal conditioning circuit and the A / D converter. The address encoding unit solidifies the displacement identifier's address code as the address identification code for the multi-data fusion linear temperature sensor, providing a unique address identification code representing the physical location. It combines the temperature analog signal obtained from the temperature sensing fiber, temperature sensing cable, and sensor module with the address digital code obtained through the address encoding unit. Then, the temperature signal is converted from digital to digital by the signal processing unit, and the temperature data and address code are packaged into a complete data frame, which is then uploaded to the controller module.

[0016] The sensor module uses a temperature sensor, but can also use a combustible gas sensor, smoke sensor, flame sensor, video image sensor, or a combination of several sensors.

[0017] like Figure 3 As shown, the data monitoring terminal includes a temperature-sensing optical fiber, a temperature-sensing cable, a data transmission unit, an address identification and status detection unit, a processor module, and a fire identification and display unit; the temperature-sensing optical fiber, the temperature-sensing cable, the data transmission unit, the address identification and status detection unit, and the fire identification and display unit are respectively connected to the processor module; The data communication unit is used by each multi-data fusion linear temperature sensor to transmit digital signals and address information of gas, smoke, temperature, and flame parameters of the monitored area to the processor module in a time-division manner. The processor module analyzes and determines whether a fire has occurred, and displays and alarms the processing results through the fire identification and display unit.

[0018] The processor module analyzes and determines whether a fire has occurred, and the processing results are displayed and alarmed by the fire identification and display unit, as detailed below: The processor module receives digital signals and address information changes of gas, smoke, temperature, and flame parameters from each sensor in the monitored area according to a time sequence. It then combines this information with temperature information from the sensing cable and fiber optic cable to analyze and determine if a real fire hazard exists in the monitored area. If an abnormal situation is confirmed, the fire identification and display unit outputs information and displays the location of the abnormal section in a loop. When the transmission line of the multi-data fusion linear temperature sensor or an independent composite sensor is damaged, the processor module outputs fault information and displays the location of the faulty section. Each multi-data fusion linear temperature sensor has a fixed address code. The microprocessor interface identifies the geographical location of each multi-data fusion linear temperature sensor in the multi-data fusion fire detector by calling the address information of the multi-data fusion linear temperature sensor, thereby determining the specific location of the abnormal section in the protected area. This enables the location detection of abnormal sections within the monitored area and displays them on the fire identification and display unit, greatly facilitating management and maintenance by firefighters.

[0019] Each multi-data fusion linear temperature sensor transmits the digital signals and address information of the gas, smoke, temperature, and flame parameters of the monitored area to the processor module in a time-division manner. The processor module analyzes and determines whether a fire has occurred, and displays and alarms the results through the fire identification and display unit.

[0020] Both the temperature-sensing optical fiber and the temperature-sensing cable are coated with a barrier layer, and the barrier layer is made of NTC or PTC characteristic material. NTC has a negative temperature coefficient characteristic, while PTC has a positive temperature coefficient characteristic. It also includes a power supply module for powering the multi-data fusion linear temperature fire detector, used to provide the electrical energy required by the multi-data fusion linear temperature sensor.

[0021] This invention uses temperature-sensing optical fibers, temperature-sensing cables, and sensor modules to collect real-time data on fire hazards within a monitored area. It can actively measure temperature and improve detection accuracy, allowing for a more accurate assessment of the actual fire hazard situation in the monitored area. This increases the accuracy and reliability of fire detection, minimizing fire damage and significantly improving the cost-effectiveness of the detector. It avoids the shortcomings of existing detectors, such as their simple sensing mechanism, poor accuracy and reliability, and inability to perform location detection.

[0022] The conductors of the temperature-sensing cable are coated with a barrier layer, which is made of NTC or PTC material. NTC has a negative temperature coefficient, while PTC has a positive temperature coefficient. The system also includes a power supply module for powering the multi-data fusion linear temperature fire detector, providing the necessary electrical energy to the sensor.

[0023] It should be noted that the above description is only a preferred embodiment of the present invention. The present invention is not limited to the above-described embodiments. As long as it achieves the technical effect of the present invention by the same means, it should fall within the protection scope of the present invention.

[0024] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0025] The above embodiments are merely illustrative of the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of this invention. The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A multi-data fusion linear heat-sensing fire detector, characterized in that: The system includes a data acquisition terminal composed of multiple multi-data fusion linear temperature sensors connected in parallel, and a data monitoring terminal connected to the data acquisition unit. Each multi-data fusion linear temperature sensor comprises a sensor module, a signal processing unit, a controller module, a data communication unit, and an address encoding unit. The output terminals of the sensor modules are connected to the input terminals of the signal processing unit, and the output terminals of the signal processing unit are connected to the input terminals of the controller module. The controller module is electrically connected to both the data communication unit and the address encoding unit. The signal processing unit includes a data acquisition circuit, a signal conditioning circuit, and an A / D converter. The data acquisition circuit is connected to the control module sequentially via the signal conditioning circuit and the A / D converter. Among them, the data acquisition terminal is used to solidify the address code of the displacement identifier through the address encoding unit as the address identification code of the multi-data fusion linear temperature sensor, providing a unique address identification code representing the physical location; The signal processing unit performs signal preprocessing and A / D conversion on the analog signals acquired by the sensor module; and the address encoding unit obtains the address digital encoding; the analog signals and address encoding are packaged into a complete data frame and then uploaded to the controller module.

2. The multi-data fusion linear heat-sensing fire detector according to claim 1, characterized in that: The sensor module uses a temperature sensor, but can also use a combustible gas sensor, smoke sensor, flame sensor, or video image sensor.

3. The multi-data fusion linear heat-sensing fire detector according to claim 1, characterized in that: The data monitoring terminal includes a temperature-sensing optical fiber, a temperature-sensing cable, a data transmission unit, an address identification and status detection unit, a processor module, and a fire identification and display unit; the temperature-sensing optical fiber, the temperature-sensing cable, the data transmission unit, the address identification and status detection unit, and the fire identification and display unit are respectively connected to the processor module; The data communication unit is used by each multi-data fusion linear temperature sensor to transmit digital signals and address information of gas, smoke, temperature, and flame parameters of the monitored area to the processor module in a time-division manner. The processor module analyzes and determines whether a fire has occurred, and displays and alarms the processing results through the fire identification and display unit.

4. A multi-data fusion linear heat-sensing fire detector according to claim 3, characterized in that: The processor module analyzes and determines whether a fire has occurred, and the processing results are displayed and alarmed by the fire identification and display unit, as detailed below: The processor module receives digital signals and address information changes of gas, smoke, temperature, and flame parameters from each sensor in the monitored area according to a time sequence. After comprehensive analysis and judgment based on the temperature information from the temperature sensing cable and the temperature sensing fiber, it determines whether there is a real fire hazard in the monitored area. If the abnormal situation is confirmed, it drives the fire identification and display unit to output information and displays the location of the abnormal section in a loop. When the transmission line of the multi-data fusion linear temperature sensor or the independent composite sensor is damaged, the processor module will drive the fault information output and display the location of the fault section. Each multi-data fusion linear temperature sensor has a fixed address code. The microprocessor interface identifies the geographical location of each multi-data fusion linear temperature sensor in the multi-data fusion fire detector by calling the address information of the multi-data fusion linear temperature sensor, thereby determining the specific location of abnormal sections in the protected area, realizing the location detection of abnormal sections in the monitoring area, and displaying it on the fire identification and display unit, which greatly facilitates the management and maintenance of firefighters.

5. A multi-data fusion linear heat-sensing fire detector according to claim 2, characterized in that: The conductor of the temperature sensing cable is coated with a barrier layer, and the barrier layer is made of NTC or PTC material. NTC has a negative temperature coefficient and PTC has a positive temperature coefficient.

6. A multi-data fusion linear heat-sensing fire detector according to claim 1, characterized in that: Also includes A power supply module for powering multi-data fusion linear heat-sensing fire detectors, used to provide the electrical energy required by the multi-data fusion linear heat-sensing sensor.

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