CN112820060A - Cable fire monitoring, exploration and emergency disposal integrated system and method - Google Patents
Cable fire monitoring, exploration and emergency disposal integrated system and method Download PDFInfo
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- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 8
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- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
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Abstract
A cable fire monitoring, exploration and emergency disposal integrated system and method comprises: the fire monitoring device is arranged in the cable channel, and each monitoring section is provided with at least one fire monitoring device for monitoring the fire characteristic gas concentration, the smoke particle concentration, the environmental temperature of the cable channel and the temperature of a cable conductor of the monitoring section; the edge calculating device is connected with the fire monitoring device, calculates and evaluates the fire risk level according to the data of each monitoring section obtained by the fire monitoring device, and transmits an emergency investigation monitoring section to the fire emergency investigation device according to the evaluated fire risk level; the fire emergency investigation device moves to an emergency monitoring section to obtain fire positioning and a fire scene picture, and the fire positioning and the fire scene picture are transmitted back to the edge calculation device; the far-end monitoring module is connected with the edge computing device and issues a fire-fighting instruction to the fire emergency disposal device according to the alarm signal and the investigation result.
Description
Technical Field
The invention belongs to the technical field of safe operation of cables, and particularly relates to a cable fire monitoring, exploration and emergency disposal integrated system and method.
Background
A plurality of cables exist in the cable channel, and the cables can be burnt due to aging and overheating of the middle head of the cable in the long-term operation process of the cables; short-circuiting of the low-voltage cables in the cable channels may also cause other cables to burn. The burning of one cable may also ignite other cables in the same cable trench, causing significant losses. If the fire disaster can be pre-warned in advance before the fire disaster happens, the abnormal conditions of the cable and the cable head are processed according to the pre-warned information, so that the fire disaster can be prevented from being burnt, and the loss caused by the aging and overheating of the cable head is greatly reduced.
Meanwhile, the plastic insulation layer of the wire and cable can generate a large amount of smoke and toxic gas in combustion, so that people are influenced to evacuate, and great difficulty is brought to escape and rescue in a fire scene. At present, a cable channel fire detection method is single, and operation and maintenance personnel are difficult to monitor the fire condition and the fire development condition in the channel in real time. Once a fire occurs, the corresponding treatment cannot be timely carried out in the early stage of the fire, and the greater property loss is caused.
Prior art document 1 (CN 107331102A) discloses a centralized suction type cable fire very early warning device, which includes an industrial control host, a fire detection integrated system and a wireless communication module, wherein the industrial control host is connected with the fire detection integrated host of each fire detection integrated system through the wireless communication module to realize information interconnection and intercommunication, and transmits the obtained fire information to the industrial control host in time, the industrial control host performs fusion processing on data synchronously detected by a plurality of fire detection integrated hosts by using information fusion analysis of a BP neural network algorithm, and the industrial control host uses the wireless communication module to transmit the fire information obtained by the system to an upper computer of an on-duty room in time.
The prior art document 1 has the disadvantages that 1) fire monitoring data are all transmitted to the industrial control host, so that the data volume is large, and the pressure of communication transmission and reliability is high; 2) the fire situation is not investigated, and the fire situation can not be accurately positioned and the development situation of the fire situation can not be mastered in the early stage; 3) the slow fire-fighting linkage is not beneficial to quickly starting a fire-fighting mechanism in the early stage of a fire situation, and property loss is reduced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a cable fire monitoring, exploration and emergency disposal integrated system and method, wherein a fire monitoring device arranged near a joint is used for monitoring the fire at the initial stage of the fire; when an alarm signal appears in fire monitoring, starting a self-walking exploration robot group at the same interval section, carrying out fire emergency exploration, and obtaining fire positioning and fire scene picture data; the fire situation point position is made clear, the fire fighting system is linked, and the fire fighting mechanism is started quickly.
The invention adopts the following technical scheme. An emergent integrated system of dealing with of cable fire monitoring investigation, includes: the fire monitoring device is arranged in a cable channel, the cable channel comprises a plurality of monitoring sections, and each monitoring section is provided with at least one fire monitoring device and is used for monitoring the fire characteristic gas concentration, the smoke particle concentration, the environmental temperature of the cable channel and the temperature of a cable conductor of the monitoring section; the edge calculating device is connected with the fire monitoring device, calculates and evaluates the fire risk level according to the data of each monitoring section obtained by the fire monitoring device, and transmits an emergency investigation monitoring section to the fire emergency investigation device according to the evaluated fire risk level; the fire emergency investigation device moves to an emergency monitoring section to obtain fire positioning and a fire scene picture, and the fire positioning and the fire scene picture are transmitted back to the edge computing device; the remote monitoring module is connected with the edge computing device and issues a fire fighting instruction to the fire emergency disposal device according to the alarm signal and the investigation result.
Preferably, the fire monitoring device comprises a gas concentration monitoring unit for monitoring the concentrations of carbon monoxide, hydrogen chloride, carbon dioxide and oxygen in the monitoring section.
Preferably, the gas concentration monitoring unit includes: a first plate body and a second plate body; the first plate body is provided with a first through hole and a sealing cover capable of plugging the first through hole; the second plate body is provided with a second through hole, a curve pipeline communicated with the second through hole, and a gas concentration sensor at the tail end of the curve pipeline.
Preferably, the fire emergency investigation apparatus includes: a plurality of ad hoc networked exploration robots; the ad hoc network exploration robot includes: the device comprises a shell, a motion unit, an exploration unit and a communication unit; the motion unit is used for driving the exploration robot to move individually; the investigation unit is used for obtaining fire positioning and a fire scene picture; the communication unit is used for enabling the plurality of exploration robots and the edge computing device to form a wireless self-organizing network.
Preferably, the motion unit includes: a controller, a motor, and a scroll wheel; the controller is connected with the motor, and the motor is connected with the rolling wheels and is used for driving the corresponding rolling wheels to roll.
Preferably, the surveying unit comprises: the gas sensor, the temperature sensor, the smoke sensor and the image collector are fixed on the shell; the shell is a transparent shell.
Preferably, the communication units of the multiple ad hoc network exploration robots adopt UWB positioning and WiFi communication to realize ad hoc network and network topology, and the multiple ad hoc network exploration robots are mutually standby.
Preferably, the fire emergency disposal device includes: fixed extinguishing device and portable fire control robot.
Another aspect of the present invention provides a cable fire monitoring, surveying, and emergency disposal integrated method using the cable fire monitoring, surveying, and emergency disposal integrated system, including the steps of:
step 1, continuously monitoring fire, and if an alarm signal appears during the fire monitoring, continuously executing step 2;
step 2, when an alarm signal appears in fire monitoring, starting an Ad hoc network exploration robot group at the same interval section, carrying out fire emergency investigation, and obtaining fire positioning and fire scene picture data;
and 3, determining the position of the fire point, linking a fire fighting system and carrying out fire fighting treatment on the fire.
Preferably, step 1 specifically comprises:
step 1.1, monitoring fire characteristic gas, smoke particle concentration, channel environment temperature and line key inspection point temperature of each section of a cable channel in real time;
step 1.2, calculating and evaluating the fire risk level according to the data obtained in the step 1.1;
and step 1.3, if the fire risk level obtained by calculation in the step 1.2 is higher than a set value, sending an alarm signal.
Preferably, in step 1.2, dividing the fire risk into k levels, wherein k is a natural number more than 2, and dividing a judgment scale range for each level;
calculating a judgment scale according to the operation parameter values of the multiple influence factors monitored in real time in the step 1.1, and obtaining the fire risk level of the current paragraph at the current moment according to the range of the judgment scale;
and corresponding countermeasures are taken according to the fire risk level.
Preferably, the risk of fire is divided into: small, general, large and very large; the corresponding evaluation scale ranges are respectively: 0 to 25, 25 to 50, 50 to 75 and 75 to 100; the corresponding measures are respectively as follows: 1) and 2) the early warning position needs to be enhanced to inspect, 3) the early warning position needs to be monitored in a key mode to eliminate hidden dangers in time, and 4) the power supply is cut off, and professional personnel are organized to carefully inspect and remove faults.
Preferably, the judgment scale a is calculated in the following formula,
m represents an evaluation matrix which is,
v represents a cable fire early warning signal evaluation set matrix which is formed by the upper limit of each evaluation scale range,
t denotes transposition.
Preferably, the operating parameter weight vector is expressed as follows
，
In the formula:
n represents a judgment matrix
The order of (a).
Preferably, the judgment matrix is expressed by the following formula
，
In the formula:
n represents a judgment matrix
The order of (a).
Preferably, the evaluation matrix M is expressed in the following formula,
in the formula:
n represents a judgment matrix
The order of (a) is selected,
k represents the number of fire risk levels.
Compared with the prior art, the fire monitoring device has the advantages that a long-path pipeline air-breathing detection method is innovatively adopted, fire characteristic gas (CO, HCl, CO2 and O2), smoke particle concentration, channel environment temperature and line key patrol viewpoint temperature are monitored in real time, the fire is positioned and the combustion state is judged according to the characteristic gas concentration and response time, the positioning precision reaches 1m, and the technical bottleneck that the traditional fire monitoring physical quantity is single and cannot be accurately positioned is broken through.
The fire emergency investigation device innovatively adopts an ad hoc network spherical robot group mode, and a single robot has the functions of movement, investigation and communication. The zero-radius steering bottleneck of a narrow space is broken through, the counterweight structure is optimized to realize high-inclination climbing and zero-overturning motion, the exploration track is dynamically planned according to the relative direction and the communication transmission distance of each robot, collision is accurately followed and avoided, and 200m fire-proof interval exploration can be completed within 1.5 min; the sealed transparent fireproof shell is adopted to meet the requirements of fire prevention and fire investigation, and environmental parameters (temperature, humidity and image) of a fire point can be monitored in real time; the robot group adopts UWB positioning and WiFi communication technology to realize the optimization of the ad hoc network and the network topology structure, and mutually stands by to form a high-reliability, low-cost and damage-resistant adaptive network.
The fire conditions can be classified accurately, corresponding measures are selected correspondingly, a fire fighting mechanism is linked quickly, and property loss is reduced to the maximum extent.
Drawings
FIG. 1 is a block diagram of a cable fire monitoring and exploration emergency treatment integrated system in accordance with the present invention;
fig. 2 is a schematic view of a first plate body of a gas concentration monitoring unit;
fig. 3 is a schematic view of a second plate body of the gas concentration monitoring unit;
fig. 4 is a flow chart of an integrated method for cable fire monitoring and exploration emergency treatment according to the invention.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
As shown in fig. 1, a first aspect of the present invention provides an integrated system for cable fire monitoring and exploration and emergency treatment, including: the fire monitoring device, the edge calculating device, the fire emergency investigation device, the fire emergency disposal device and the remote monitoring module.
The fire monitoring device is arranged in the cable channel, the cable channel comprises a plurality of monitoring sections, each monitoring section is provided with at least one fire monitoring device for monitoring the fire characteristic gas concentration, the smoke particle concentration, the environmental temperature of the cable channel and the temperature of a cable conductor of the monitoring section.
The fire monitoring device comprises a gas concentration monitoring unit for monitoring the concentrations of carbon monoxide, hydrogen chloride, carbon dioxide and oxygen in a monitoring section. It should be noted that the characteristic gas for monitoring fire may be configured by those skilled in the art, the gas concentration monitoring unit for monitoring the concentrations of the four gases is only a preferred but non-limiting embodiment, and more or less kinds of characteristic gases may be used, and both the four gases may be used, and other kinds of characteristic gases may be used, such as, but not limited to, nitrogen oxide, sulfur oxide, hydrogen sulfide, and the like.
As shown in fig. 2 and 3, the gas concentration monitoring unit includes: a first plate body 2 and a second plate body 3; the first plate body 2 is provided with a first through hole and a sealing cover capable of plugging the first through hole; the second plate body 3 is provided with a second through hole 31, a curved pipe 32 communicating with the second through hole 31, and a gas concentration sensor at the end of the curved pipe 32. The first plate body 2 and the second plate body 3 are combined to form a long-path pipeline air suction type detection structure.
It should be noted that other gas detection methods can be selected by those skilled in the art, the long-path pipeline gas-suction type detection structure adopted in the present invention is only a preferred but non-limiting embodiment, and any gas detection method for monitoring the characteristic gas concentration is within the scope of the inventive concept of the present invention. It can be understood that the fire is positioned and the combustion state is judged through the characteristic gas concentration and the response time, the positioning precision reaches 1m, and the technical bottleneck that the traditional fire monitoring physical quantity is single and cannot be accurately positioned is broken through.
The edge calculating device is connected with the fire monitoring device, calculates and evaluates fire risk levels according to data of all monitoring sections obtained by the fire monitoring device, and issues emergency investigation monitoring sections to the fire emergency investigation device according to the evaluated fire risk levels. It can be understood that the adoption of the edge calculation mode greatly reduces the communication and calculation pressure, and provides precious calculation resources and time for timely handling the fire.
And the fire emergency investigation device moves to an emergency monitoring section to obtain fire positioning and a fire scene picture, and the fire positioning and the fire scene picture are transmitted back to the edge computing device. It is to be noted that any suitable fire emergency survey device may be used by the person skilled in the art, and that the present invention is only a preferred but non-limiting embodiment in the following way. The shape and structure of the robot can be changed, and the emergency investigation device which accords with the corresponding function falls into the inventive concept of the invention.
Emergent reconnaissance device of condition of a fire includes: a plurality of ad hoc networked exploration robots; the ad hoc network exploration robot includes: the shell is provided with a motion unit, an exploration unit and a communication unit inside the shell; the motion unit is used for driving the self-networking exploration robot to move; the investigation unit is used for obtaining fire positioning and a fire scene picture; the communication unit is used for enabling the plurality of self-organizing network exploration robots and the edge computing device to form a wireless self-organizing network.
The motion unit includes: a controller, a drive mechanism and a travel mechanism; the controller is connected with the driving mechanism, and the driving mechanism is connected with the advancing mechanism and used for driving the corresponding advancing mechanism to move.
As a further preferred aspect of the present invention, the motion unit includes: a controller, a motor, and a scroll wheel; the controller is connected with the motor, and the motor is connected with the rolling wheels and is used for driving the corresponding rolling wheel units to roll.
The survey unit includes: the gas sensor, the temperature sensor, the smoke sensor and the image collector are fixed on the shell; the shell is a transparent shell. It will be appreciated that depending on the nature of the survey, one skilled in the art may configure the associated sensors and/or camera structures for obtaining relevant fire data.
The communication units of the plurality of self-networking exploration robots adopt UWB positioning and WiFi communication to realize self-networking and network topology structures, and the plurality of self-networking exploration robots are mutually standby. In the invention, the sealed transparent fireproof shell is adopted to meet the requirements of fire prevention and fire investigation, and environmental parameters (temperature, humidity and image) of a fire point can be monitored in real time; the robot group adopts UWB positioning and WiFi communication technology to realize the optimization of the ad hoc network and the network topology structure, and mutually stands by to form a high-reliability, low-cost and damage-resistant adaptive network.
A preferable but non-limiting implementation mode is that the self-networking exploration robot is a spherical robot, the spherical single robot can simultaneously have the functions of movement, exploration and communication, the bottleneck of zero-radius steering in a narrow space is broken through, the counterweight structure is optimized to realize high-inclination climbing and zero-overturning movement, exploration tracks are dynamically planned according to the relative directions and communication transmission distances of the robots, collision is accurately followed and avoided, and the exploration of 200m fire intervals can be completed within 1.5 min.
The remote monitoring module is connected with the edge computing device and issues a fire fighting instruction to the fire emergency disposal device according to the alarm signal and the investigation result. The form of the remote monitoring module combined with the edge computing device reduces the complexity of the whole system and can quickly respond in the early stage of the fire.
The fire emergency disposal device comprises: fixed extinguishing device and portable fire control robot. It should be noted that those skilled in the art can configure the fixed fire extinguishing device and the mobile fire-fighting robot at will, and when receiving the instruction from the edge computing device, the fixed fire extinguishing device and the mobile fire-fighting robot can be positioned according to the fire situation obtained earlier by the edge computing device, and quickly arrive at the site where the fire occurs, so as to perform the fire-fighting treatment work in time.
As shown in fig. 4, a second aspect of the present invention provides a cable fire monitoring and exploration emergency disposal integrated method using the cable fire monitoring and exploration emergency disposal integrated system, including the steps of:
step 1, continuously monitoring fire, and if an alarm signal appears during the fire monitoring, continuously executing step 2;
the step 1 specifically comprises the following steps:
step 1.1, monitoring fire characteristic gas, smoke particle concentration, channel environment temperature and line key inspection point temperature of each section of a cable channel in real time; and (3) calculating a judgment scale according to the operation parameters of the plurality of influence factors monitored in real time in the step 1.1, and obtaining the fire risk level of the current paragraph at the current moment according to the range of the judgment scale.
Specifically, a preferred but non-limiting embodiment is to calculate the judgment scale in the following way, using 1-9 fuzzy scales, comparing the evaluation factors of the same level two by two to obtain a judgment matrix,
n represents the number of influencing factors monitored in real time in step 1.1,
the meaning of the scale is shown in the following table,
TABLE 1 meanings on scale
According to the hierarchical structure model, the influence factors comprise cable conductor temperature, cable tunnel space temperature, carbon dioxide concentration, smoke particle concentration, oxygen concentration and carbon monoxide concentration as evaluation factors, and according to historical experience, the obtained operation parameter judgment matrix is as follows:
that is, the judgment matrix is expressed by the following formula
，
In the formula:
n represents a judgment matrix
I.e. the number of influencing factors monitored in real time in step 1.1.
Determining matrix by geometric mean method
Normalizing the row vectors to obtain weight vectors
。
The operating parameter weight vector is expressed by the following formula
，
In the formula:
n represents a judgment matrix
The order of (a).
As a preferred aspect of the present invention, the calculation of the operation parameter weight vector results in,
calculating the maximum eigenvalue of the judgment matrix
The calculated results are tested for consistency by the following formula,
TABLE 2 consistency index
Value taking
If it is
<0.1, the decision matrix passes the consistency check.
Calculating the operation parameter matrix to obtain
And less than 0.1, by consistency test.
As a preferred aspect of the present invention, the evaluation matrix M may be obtained by performing a single evaluation of each influence factor or performing a multiple evaluation of each influence factor,
m is a membership evaluation matrix of the influence factors,
Specifically, if multiple evaluations are performed, the first evaluation method forms a threshold evaluation matrix by using the values of the influence factors, namely, the conductor temperature of the cable, the space temperature of the cable tunnel, the carbon dioxide concentration, the smoke particle concentration, the oxygen concentration and the carbon monoxide concentration
，
That is, the threshold evaluation matrix is expressed by the following formula
，
In the formula:
n represents a judgment matrix
The order of (a) is selected,
k represents the number of fire risk levels.
In a preferred, but non-limiting embodiment, the impact factor fuzzy scale is as shown in the following table,
TABLE 3 influence factor fuzzy classification ranges
Examples are: when the current measured conductor temperature is 87 ℃, the space temperature is 65 ℃, the carbon dioxide concentration is 980ppm, the smoke particle concentration is 7ppm, the oxygen concentration is 19.98 percent and the carbon monoxide concentration is 3.85ppm, the evaluation matrix of the membership degree of the influence factors is obtained as follows,
the second evaluation mode forms a change rate evaluation matrix by using the numerical change rates of the influence factors, namely the cable conductor temperature change rate, the cable tunnel space temperature change rate, the carbon dioxide concentration change rate, the smoke particle concentration change rate, the oxygen concentration change rate and the carbon monoxide concentration change rate
，
In the formula:
n represents a judgment matrix
The order of (a) is selected,
k represents the number of fire risk levels.
It is worth noting that, in the initial stage of the cable fire, the influence factor value may not reach the range of the classification calculated by the value itself temporarily, but the change rate may change greatly, and the evaluation matrix formed by the change rate of the influence factor value can effectively warn the rapidly developing fire and effectively supplement the influence factor value in the classification.
Then, the judgment scale a is calculated as follows,
in the formula:
m represents an evaluation matrix, i.e. the threshold evaluation matrix
And rate of change evaluation matrix
，
V represents a cable fire warning signal evaluation set matrix formed by the upper limit of each evaluation scale range, which in this embodiment may be
。
T denotes transposition.
It is noted that if multiple evaluations are used, the larger of the two evaluation scales obtained is taken as the standard.
As a further preferred aspect of the present invention, in order to avoid false alarms, an auxiliary detection unit is provided in the edge calculation module, which includes a PNN model (PNN). The PNN model was trained with data simulating a cable fire as a sample. After the PNN model training is finished, the temperature of a cable conductor, the space temperature of a cable tunnel, the concentration of carbon dioxide, the concentration of smoke particles, the concentration of oxygen and the concentration of carbon monoxide are taken as input,with probability of cable fire
As an output. Likewise, the probability of a cable fire is defined
The fuzzy scale, such as but not limited to the following table,
TABLE 4 probability of Cable fire
Cable fire probability output by the PNN model
The initial determination of the cable fire is combined with the evaluation scale A, a preferred but non-limiting embodiment being if the cable fire probability is
If the level is a low risk level and the judgment scale A outputs a high level, the false alarm is judged; probability of fire if cable
If the risk level is high, prompting operation and maintenance personnel to pay attention to the risk; and if the fire risk level is high, determining that the fire risk level is high, and if the fire risk level is low, determining that the fire risk level is low. It will be appreciated that if the cable fires, the probability of fire is reduced
For high risk levels, the exploration robot may also be activated for field verification.
Step 1.2, calculating and evaluating the fire risk level according to the data obtained in the step 1.1; it can be understood that, in step 1.2, the fire risk is divided into k levels, wherein k is a natural number more than 2, and a judgment scale range is divided for each level; and corresponding countermeasures are taken according to the fire risk level.
It is understood that the number of fire risk levels and corresponding countermeasures can be arbitrarily set by those skilled in the art in consideration of safety considerations, and a preferred but non-limiting embodiment of the present invention will be given for clarity of description of the method of implementation of the present invention. For example, the risk of fire is classified as: small, general, large and very large; the corresponding evaluation scale ranges are respectively: 0 to 25, 25 to 50, 50 to 75 and 75 to 100; the corresponding measures are respectively as follows: 1) and 2) the early warning position needs to be enhanced to inspect, 3) the early warning position needs to be monitored in a key mode to eliminate hidden dangers in time, and 4) the power supply is cut off, and professional personnel are organized to carefully inspect and remove faults. And the warning signal can correspond to four colors.
And step 1.3, if the fire risk level obtained by calculation in the step 1.2 is higher than a set value, sending an alarm signal.
Step 2, when an alarm signal appears in fire monitoring, starting a self-walking exploration robot group at intervals, carrying out fire emergency exploration, and obtaining fire positioning and fire scene picture data;
and 3, determining the position of the fire point, and linking a fire-fighting system, wherein the fire-fighting system is not limited to a fixed fire-fighting device and a mobile fire-fighting robot.
Compared with the prior art, the fire monitoring device has the advantages that a long-path pipeline air-breathing detection method is innovatively adopted, fire characteristic gas (CO, HCl, CO2 and O2), smoke particle concentration, channel environment temperature and line key patrol viewpoint temperature are monitored in real time, the fire is positioned and the combustion state is judged according to the characteristic gas concentration and response time, the positioning precision reaches 1m, and the technical bottleneck that the traditional fire monitoring physical quantity is single and cannot be accurately positioned is broken through. The fire emergency investigation device innovatively adopts an ad-hoc network robot group mode, and a single robot has the functions of movement, investigation and communication. The zero-radius steering bottleneck of a narrow space is broken through, the counterweight structure is optimized to realize high-inclination climbing and zero-overturning motion, the exploration track is dynamically planned according to the relative direction and the communication transmission distance of each robot, collision is accurately followed and avoided, and 200m fire-proof interval exploration can be completed within 1.5 min; the sealed transparent fireproof shell is adopted to meet the requirements of fire prevention and fire investigation, and environmental parameters (temperature, humidity and image) of a fire point can be monitored in real time; the robot group adopts UWB positioning and WiFi communication technology to realize the optimization of the ad hoc network and the network topology structure, and mutually stands by to form a high-reliability, low-cost and damage-resistant adaptive network. The fire conditions can be classified accurately, corresponding measures are selected correspondingly, a fire fighting mechanism is linked quickly, and property loss is reduced to the maximum extent.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (16)
1. An emergent integrated system of dealing with of cable fire monitoring investigation, includes: a fire monitoring device, an edge calculating device, a fire emergency investigation device, a fire emergency disposal device and a remote monitoring module,
the fire monitoring device is arranged in a cable channel, the cable channel comprises a plurality of monitoring sections, and each monitoring section is provided with at least one fire monitoring device for monitoring the fire characteristic gas concentration, the smoke particle concentration, the environmental temperature of the cable channel and the temperature of a cable conductor of the monitoring section;
the edge calculating device is connected with the fire monitoring device, calculates and evaluates the fire risk level according to the data of each monitoring section obtained by the fire monitoring device, and transmits an emergency investigation monitoring section to the fire emergency investigation device according to the evaluated fire risk level;
the fire emergency investigation device moves to an emergency monitoring section to obtain fire positioning and a fire scene picture, and the fire positioning and the fire scene picture are transmitted back to the edge computing device;
the remote monitoring module is connected with the edge computing device and issues a fire fighting instruction to the fire emergency disposal device according to the alarm signal and the investigation result.
2. The integrated cable fire monitoring and exploration emergency disposal system of claim 1,
the fire monitoring device comprises a gas concentration monitoring unit for monitoring the concentrations of carbon monoxide, hydrogen chloride, carbon dioxide and oxygen in a monitoring section.
3. The integrated cable fire monitoring and exploration emergency disposal system of claim 2,
the gas concentration monitoring unit includes: a first plate body and a second plate body; the first plate body is provided with a first through hole and a sealing cover capable of plugging the first through hole; the second plate body is provided with a second through hole, a curve pipeline communicated with the second through hole, and a gas concentration sensor at the tail end of the curve pipeline.
4. The integrated cable fire monitoring and exploration emergency disposal system of claim 1,
emergent reconnaissance device of condition of a fire includes: a plurality of ad hoc networked exploration robots; the ad hoc network exploration robot includes: the device comprises a shell, a motion unit, an exploration unit and a communication unit; the motion unit is used for driving the exploration robot to move individually; the investigation unit is used for obtaining fire positioning and a fire scene picture; the communication unit is used for enabling the plurality of exploration robots and the edge computing device to form a wireless self-organizing network.
5. The integrated cable fire monitoring and exploration emergency disposal system of claim 4,
the motion unit includes: a controller, a drive mechanism and a travel mechanism; the controller is connected with the driving mechanism, and the driving mechanism is connected with the advancing mechanism and used for driving the corresponding advancing mechanism to move.
6. The integrated system for cable fire monitoring and exploration emergency treatment according to claim 4 or 5,
the survey unit includes: the gas sensor, the temperature sensor, the smoke sensor and the image collector are fixed on the shell; the shell is a transparent shell.
7. The integrated system for cable fire monitoring and exploration emergency treatment according to claim 4 or 5,
the communication units of the plurality of self-networking exploration robots adopt UWB positioning and WiFi communication to realize self-networking and network topology structures, and the plurality of self-networking exploration robots are mutually standby.
8. The integrated cable fire monitoring and exploration emergency disposal system according to any one of claims 1 to 5,
the fire emergency disposal device comprises: fixed extinguishing device and portable fire control robot.
9. A cable fire monitoring and exploration emergency treatment integrated method using the cable fire monitoring and exploration emergency treatment integrated system according to any one of claims 1 to 8, comprising the steps of:
step 1, continuously monitoring fire, and if an alarm signal appears during the fire monitoring, continuously executing step 2;
step 2, when an alarm signal appears in fire monitoring, starting an Ad hoc network exploration robot group at the same interval section, carrying out fire emergency investigation, and obtaining fire positioning and fire scene picture data;
and 3, determining the position of the fire point, linking a fire fighting system and carrying out fire fighting treatment on the fire.
10. The integrated cable fire monitoring and exploration emergency disposal method of claim 9, wherein:
the step 1 specifically comprises the following steps:
step 1.1, monitoring fire characteristic gas, smoke particle concentration, channel environment temperature and line key inspection point temperature of each section of a cable channel in real time;
step 1.2, calculating and evaluating the fire risk level according to the data obtained in the step 1.1;
and step 1.3, if the fire risk level obtained by calculation in the step 1.2 is higher than a set value, sending an alarm signal.
11. The integrated cable fire monitoring and exploration emergency disposal method of claim 10, wherein:
in the step 1.2, dividing the fire risk into k levels, wherein k is a natural number more than 2, and dividing a judgment scale range for each level;
calculating a judgment scale according to the operation parameter values of the multiple influence factors monitored in real time in the step 1.1, and obtaining the fire risk level of the current paragraph at the current moment according to the range of the judgment scale;
and corresponding countermeasures are taken according to the fire risk level.
12. The integrated cable fire monitoring and exploration emergency disposal method of claim 11, wherein:
the fire risk is divided into: small, general, large and very large; the corresponding evaluation scale ranges are respectively: 0 to 25, 25 to 50, 50 to 75 and 75 to 100; the corresponding measures are respectively as follows: 1) and 2) the early warning position needs to be enhanced to inspect, 3) the early warning position needs to be monitored in a key mode to eliminate hidden dangers in time, and 4) the power supply is cut off, and professional personnel are organized to carefully inspect and remove faults.
13. The integrated cable fire monitoring and exploration emergency disposal method of claim 12, wherein:
the evaluation scale a is calculated in the following formula,
in the formula:
m represents an evaluation matrix which is,
v represents a cable fire early warning signal evaluation set matrix which is formed by the upper limit of each evaluation scale range,
t denotes transposition.
14. The integrated cable fire monitoring and exploration emergency disposal method of claim 13, wherein:
the operating parameter weight vector is expressed by the following formula
，
In the formula:
n represents a judgment matrix
The order of (a).
15. The integrated cable fire monitoring and exploration emergency disposal method of claim 14, wherein:
the decision matrix is expressed by the following formula
，
In the formula:
n represents a judgment matrix
The order of (a).
16. The integrated cable fire monitoring and exploration emergency disposal method of claim 13, wherein:
the evaluation matrix M is expressed by the following formula,
in the formula:
n represents a judgment matrix
The order of (a) is selected,
k represents the number of fire risk levels.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019116725A1 (en) * | 2017-12-12 | 2019-06-20 | 日本電気株式会社 | Control system for use during tunnel fire |
| CN209312190U (en) * | 2018-12-12 | 2019-08-27 | 智洋创新科技股份有限公司 | Electric power tunnel intelligent fire-pretection system |
| CN110917540A (en) * | 2019-12-09 | 2020-03-27 | 国网智能科技股份有限公司 | Fire-fighting robot system and method |
| CN111107675A (en) * | 2020-01-21 | 2020-05-05 | 山东科华电力技术有限公司 | Cable channel edge Internet of things terminal and method based on ubiquitous power Internet of things |
| CN111429684A (en) * | 2020-05-13 | 2020-07-17 | 廊坊为远智能科技有限公司 | Automatic fire extinguishing alarm and fire control integrated control system for fire disaster |
| CN212569979U (en) * | 2020-09-15 | 2021-02-19 | 河北工业大学 | Tunnel guide rail traveling fire-fighting robot system |
-
2021
- 2021-04-16 CN CN202110409209.3A patent/CN112820060B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019116725A1 (en) * | 2017-12-12 | 2019-06-20 | 日本電気株式会社 | Control system for use during tunnel fire |
| CN209312190U (en) * | 2018-12-12 | 2019-08-27 | 智洋创新科技股份有限公司 | Electric power tunnel intelligent fire-pretection system |
| CN110917540A (en) * | 2019-12-09 | 2020-03-27 | 国网智能科技股份有限公司 | Fire-fighting robot system and method |
| CN111107675A (en) * | 2020-01-21 | 2020-05-05 | 山东科华电力技术有限公司 | Cable channel edge Internet of things terminal and method based on ubiquitous power Internet of things |
| CN111429684A (en) * | 2020-05-13 | 2020-07-17 | 廊坊为远智能科技有限公司 | Automatic fire extinguishing alarm and fire control integrated control system for fire disaster |
| CN212569979U (en) * | 2020-09-15 | 2021-02-19 | 河北工业大学 | Tunnel guide rail traveling fire-fighting robot system |
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