Temperature sensing cable laying comprehensive analysis method, device and system in automatic fire alarm system

Abstract

The invention discloses a temperature sensing cable laying analysis method and system in an automatic fire alarm system integrating multiple factors. The method comprises the following steps: identifying and initializing related information of a temperature sensing cable; performing information identification processing; carrying out curve-form segmentation by taking the turn-back laying times as a segmentation basis, and respectively defining each curve; defining a curve segmentation calculation formula; temperature-sensing cable standard laying pitch selection verification and curve length calculation are carried out; obtaining a temperature-sensing cable laying pitch meeting the requirements and a cable laying length at the moment, and making a corresponding laying decision scheme; displaying a curve laying scheme and a curve graph; displaying and summarizing and counting equipment materials; the system comprises a center-level operation group and a station-section-level operation group. The problems that in the prior art, unified management is lacked, the cable laying compactness cannot be accurately selected, and an efficient and visual laying scheme is lacked are solved.

Description

Technical Field

[0001] The present invention belongs to the field of rail transit information technology, and more specifically, relates to a comprehensive analysis method, device and system for laying temperature-sensitive cables in an automatic fire alarm system. Background Art

[0002] Linear thermal fire detectors (thermal cables for short) are a relatively mature early fire detection equipment and are widely used in transportation, electricity, pipe corridors, workshops and other fields. Thermal cables have a fast response to small-scale fire detection alarms without open flames. In the field of rail transit, fire detectors generally use thermal cables for protection and detection areas such as under station platforms, power supply cable interlayers in stations / fields, and power supply cable brackets in section tunnels. According to the design specifications for automatic fire alarm systems, thermal cables are arranged in contact when protecting cables and other similar objects, and cable-type linear thermal fire detectors should be arranged in an "S" shape on the upper surface of each layer of cables.

[0003] When designing and implementing existing systems, the multiplier coefficient method described in the fire automatic alarm system design specification diagram 14X505-1 is generally used. According to the width of the power supply cable tray, the corresponding multiplier coefficient is selected from the table at a pitch of 0.9m / 1.2m / 1.5m / 1.8m, and the length of the temperature sensing cable detector is estimated based on the cable tray length x multiplier coefficient. During actual design and construction, based on experience, it is multiplied by a certain redundancy to finally estimate the design length of the temperature sensing cable detector.

[0004] In actual engineering projects, the cable laying scheme is often no longer designed in detail. However, the actual engineering site is relatively complex and has the following problems: (1) The temperature sensing cables are installed separately at stations, sections, and sections, lacking unified management and laying decision analysis. (2) There are many factors affecting the laying, including the width and length of the power supply cable bracket, the density (or pitch) of the temperature sensing cable laying, and the temperature sensing cable laying path, which bring unknown impacts to the FAS system design and safe construction. (3) When designing the system, it is impossible to determine whether the detector can meet the length limit of the standard length when the laying area length exceeds 100m. (4) When designing the scheme and constructing, it is impossible to accurately select the density (i.e. pitch) of the cable laying. If the cable is laid too densely, it is likely to exceed the total detection length limit of the detector. If the cable is laid too loosely, the number of detection points will be greatly reduced, reducing the detection efficiency. (5) When designing the system, there are cases where the temperature sensing cable is laid back or repeatedly, and the temperature sensing cable laying is often fuzzy treated without detailed design. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention proposes a temperature-sensing cable laying analysis system that integrates multiple factors to solve the problems of the prior art that the cable laying density cannot be accurately selected and the cable laying density cannot be accurately selected. The system includes the following steps:

[0006] Step 1: Identify and initialize the relevant information of the temperature sensing cable;

[0007] Step 2: Perform information identification processing to obtain the segmented form identification and total length matrix 1 of the temperature-sensitive cable protection area, the repeated laying straight line segment identification and length matrix k, the curve segment identification and length matrix lk, and the laying curve matrix Curve_form0();

[0008] Step 3: Segment the curve, including normal curve laying segment, repeated straight line segment, and return laying curve segment; the number of return laying is used as the segmentation basis, each segment includes a curve laying segment and a repeated straight line segment, and each curve is defined separately;

[0009] Step 4: Calculate the length of curve segments, including the definition of normal curve laying segment length, repeated straight line segment length, return laying curve segment length, return laying curve overhead, and curve margin;

[0010] Step 5: Verify the standard laying pitch of the temperature-sensing cable and calculate the curve length; Verify the standard laying pitch of the temperature-sensing cable and use the traversal method to find a suitable laying curve within the pitch range; The pitch Step is set within the standard range of [0.9m, 1.8m], and the pitch Step is substituted into the length formula to calculate the curve length;

[0011] Step six: Get the required temperature sensing cable laying pitch and cable laying length, and make corresponding laying decision plan.

[0012] Furthermore, it also includes:

[0013] Step 7: Curve laying plan and curve diagram display;

[0014] Step 8: Display and summary statistics of equipment and materials.

[0015] Furthermore, the step one: relevant information includes the width Width of the power supply cable support / bracket in the station section / interval, the support / bracket layer spacing Interval, the temperature sensing cable laying curved and straight segmented matrix Curve_form, the temperature sensing cable product standard length Standard_length, the temperature sensing cable affiliation identification Id, type Seq, and quantity num.

[0016] Furthermore, the step 2 specifically includes:

[0017] The information of the temperature sensing cable laying curve form includes the identification and the total length matrix l information includes: [the area length of the normal curve laying section and the repeated straight line section to be laid];

[0018] Repeatedly laid straight line segment identification and length matrix k information includes: [length of the repeated laid straight line segment area to be laid];

[0019] The curve segment identification and length matrix lk information includes: [the length of the normal curve laying segment area to be laid];

[0020] If there is a return layout, the matrices l, k, lk each have a new dimension added to store the return data;

[0021] The information of Curve_form0() of temperature-sensitive cable laying curve matrix includes: the first column stores the curve identification (1 indicates curve laying, 2 indicates straight line repeated laying, and 3 indicates return laying); the second column stores the starting point of the curve that needs to be laid, which is the total length of the normal curve laying segment, repeated straight line segment, and return laying curve segment area that have been laid in the previous sequence; the third column stores the end point of the curve that needs to be laid, which is the total length of the normal curve laying segment / repeated straight line segment / return laying curve segment area that passes through this segment; this matrix is ​​used to draw the temperature-sensitive cable laying curve.

[0022] Furthermore, it is characterized in that the step three specifically includes:

[0023] The curve laying function is calculated segment by segment according to the curve form. The calculation formula of each segment curve function is: The normal curve laying segment curve is defined as: Repeated straight line segment is defined as: y1 = y s The return laying curve segment is defined as: Where A = Width / 2, W = 2π / Step, where Width is the information identification content of the initialization, and Step is the laying pitch of the temperature sensing cable. The length of the previous turnaround section. The information is obtained in l, It is the total area length of the previous repeated straight line segments in the current laying section. The information is accumulated from each previous repeated laying section. It is necessary to pay attention to each return. Need to be cleared and recalculate the total area length of the preceding repeated straight line segment in the return segment, y s When the straight line segment in each segment starts to be laid, the value of the last point of the previous curve. If there is no previous curve, y s =A, The length of the area where the curve has been laid before the return laying. All pieces of information about x are obtained in Curve_form0().

[0024] Furthermore, the step 4 specifically includes:

[0025] The normal curve laying section curve length is defined as The default start=0, end is obtained from lk;

[0026] The length of each segment of the repeated straight line segment is obtained from k. Here, it is defined that after each repeated straight line segment is laid, the curve laying still continues the form of the previous curve laying;

[0027] The length of the return laying curve segment is defined as Here, it is defined that each return laying starts from 0 according to the new cosine curve form. Here, it is only necessary to recalculate the x information obtained in Curve_form0(), that is, start′=0, The additional cost of the return laying curve for each return laying is Interval + Width; according to the above calculation method, the curve length is obtained, and the margin for the on-site cable leading up, leading down, termination and slackness needs to be considered, and the curve margin Margin is added to determine the curve formula length:

[0028]

[0029] Furthermore, it is characterized in that the step five also includes, when the requirements cannot be met within the range of 900 mm to 1800 mm, selecting and verifying the special laying pitch of the temperature sensing cable, and using a genetic algorithm to determine the special pitch Step.

[0030] Further, including:

[0031] The information identification and initialization unit is used to identify and initialize the relevant information of the station section / section temperature sensing cable. The relevant information includes: the width Width of the power supply cable bracket / carrier in the station section / section, the bracket / carrier layer spacing Interval, the temperature sensing cable laying straight and curved segment matrix Curve_form, the temperature sensing cable product standard length Standard_length, the temperature sensing cable ownership identification Id, type Seq, and quantity num;

[0032] The information identification processing unit is used to process and organize the information identification of the temperature-sensing cable transmitted from the station section / section, unify the width, spacing, and length units, and correct the missing data and errors;

[0033] The curve segmentation unit is used to segment based on the number of return laying times. Each segment consists of a curve laying segment and a repeated laying straight line segment, including a normal curve laying segment, a repeated laying straight line segment, and a return laying curve segment; and the function of each curve segment is defined separately;

[0034] The curve segment length calculation unit is used to calculate the curve segment length, including the definition of the normal curve laying segment length, the definition of the repeated laying straight line segment length, the return laying curve segment length, the return laying curve cost, and the curve margin;

[0035] The pitch selection verification and curve length calculation unit is used for standard laying pitch selection verification and curve length calculation of temperature-sensitive cables; standard laying pitch selection verification of temperature-sensitive cables, and traversal method is used to find a suitable laying curve within the pitch range; the pitch Step is set within the standard range of [0.9m, 1.8m], and the pitch Step is substituted into the length formula to calculate the curve length; when the requirements cannot be met within the range of 900mm to 1800mm, the special laying pitch selection verification of temperature-sensitive cables is used, and the special pitch Step is determined using a genetic algorithm;

[0036] The laying decision plan making unit is used to obtain the temperature sensing cable laying pitch and the cable laying length that meet the requirements, and make corresponding laying decision plans.

[0037] Furthermore, the temperature sensing cable laying analysis system includes a station-level operation group and a center-level operation group;

[0038] The station-level operation group includes: a station-section / section temperature-sensing cable related information identification module and a curve laying plan module;

[0039] The station-level station-section / section temperature-sensing cable related information identification module includes: a module for summarizing and counting station-section information, identifying the temperature-sensing cables according to the different settings of the temperature-sensing cables in stations / sections / sections, and uploading the relevant summary statistics and identification to the center level;

[0040] The station-level station / section laying curve plan module customizes the laying decision information fed back by the central-level operation group into a laying curve plan, interacts with the central level, and obtains the laying decision information fed back by the central-level decision analysis module, including laying pitch, laying length, curve form, and attribution information; based on the obtained information, a laying curve plan is generated at this level. The curve can be used to intuitively understand the laying pitch, laying length, and laying curve form of the temperature-sensitive cable;

[0041] The center-level operation includes: decision analysis module, curve laying program module, report statistics module;

[0042] The decision analysis module of the central operation group processes the received information, including obtaining the curve form in sections (step three), selecting and verifying the laying pitch (step five), obtaining the curve laying length under the selected pitch (step four), and providing the decision analysis information to other modules respectively;

[0043] The laying curve scheme function item module interacts with the decision analysis module item, generates and displays the temperature-sensitive cable laying curves set at the stations, sections, sections, building units, etc. under the jurisdiction of the center level according to the laying decision information;

[0044] The report statistics function item module interacts with the decision analysis module item to generate summary statistics on the number of temperature-sensing cable equipment and cables under the jurisdiction of the center level according to the laying decision information.

[0045] Furthermore, the center-level operation also includes an information identification processing module, which processes and organizes the identification of temperature-sensing cable related information uploaded from the station section / section, unifies the width, spacing, and length units, corrects data missing and errors, and exchanges the processed information to the decision analysis module.

[0046] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0047] 1. The present invention provides a comprehensive analysis method for the laying of temperature-sensing cables in an automatic fire alarm system. In view of the fact that existing research on temperature-sensing cables focuses on products rather than system design, the present invention realizes the overall unified management and laying decision analysis of line-level temperature-sensing cables through the setting of a central-level operation group. The present invention also realizes the intuitive display and design of temperature-sensing cables in various locations in a station section / interval through the setting of a station section / interval.

[0048] 2. The present invention provides a comprehensive analysis method for the laying of temperature-sensing cables in an automatic fire alarm system, which comprehensively considers various influencing factors at lines, stations, sections, and intervals, such as the width of the power supply cable bracket / carrier, the spacing between bracket / carrier layers, the straight and curved segments of the temperature-sensing cable laying, the standard length of the temperature-sensing cable products, the identification of the temperature-sensing cable, etc., to identify the relevant information of the temperature-sensing cables, realize refined system design, and effectively control construction safety.

[0049] 3. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system of the present invention is divided into a center-level operation group and a station-level operation group, and the analysis and decision-making are centrally deployed at the center to simplify the station-level configuration and operation. When the analysis and decision-making module function is upgraded, only the center needs to be upgraded, and no station-level operation is required.

[0050] 4. The present invention provides a comprehensive analysis method for the laying of temperature-sensing cables in an automatic fire alarm system. By setting a decision analysis module, suggestions for the laying plan of temperature-sensing cables are provided, and the laying pitch, laying length, laying curve form, temperature-sensing cable equipment and cable quantity statistics of the temperature-sensing cables can be intuitively understood, providing guidance for system design and construction.

[0051] 5. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system of the present invention divides the laying pitch into standard sections and special sections. The standard sections are solved by a traversal method, and the special sections are solved by a genetic algorithm, respectively, to avoid solving in a completely open interval, and the algorithm efficiency is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of a temperature sensing cable laying analysis system that integrates multiple factors in a preferred embodiment of the present invention

[0053] Figure 2 A flow chart of a temperature sensing cable laying analysis method that integrates multiple factors in a preferred embodiment of the present invention

[0054] Figure 3 A schematic diagram of the laying effect of a temperature-sensing cable taking into account multiple factors in a preferred embodiment of the present invention

[0055] Figure 4 Schematic diagram of the curve laying effect of station S11 at standard pitch in preferred embodiment 1 of the present invention

[0056] Figure 5 Schematic diagram of the curve laying effect of station S12 at a special pitch in the preferred embodiment 2 of the present invention

[0057] Figure 6 Schematic diagram of the curve laying effect under the standard pitch of the vehicle section D1 in the preferred embodiment of the present invention

[0058] Figure 7 Schematic diagram of the curve laying effect of the inter-vehicle section Q2 under standard pitch in a preferred embodiment of the present invention

[0059] Figure 8 Schematic diagram of the structure of the temperature sensing cable laying analysis device in the automatic fire alarm system which takes into account multiple factors in the preferred embodiment of the present invention

[0060] In all the drawings, the same reference numerals represent the same technical features, specifically: 10-a temperature-sensing cable laying analysis device in an automatic fire alarm system integrating multiple factors, 20-an information identification and initialization unit, 30-a curve form segmentation unit, 40-a curve segment length calculation unit, 50-a pitch selection verification and curve length determination unit, 60-a laying decision-making plan unit. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] Station level: mainly refers to rail transit stations, parking lots, depots, and sections between stations, etc. It should be understood that a certain building or unit in other fields can also be included in this scope in a broad sense;

[0063] Central level: It can be a rail transit line control center, or a station section selected from each station section level as a centralized center;

[0064] Operation group: a collection of functional modules at the center level and station level, consisting of multiple functional items;

[0065] In addition, other technologies and related terms used in this article have the same meanings as those generally understood by technicians in the technical field of the present invention.

[0066] Please refer to Figure 1 In view of the problems that the laying of temperature-sensing cables lacks unified management and laying decision-making analysis functions, the laying pitch and laying length are difficult to control in system design, and the laying of multiple curve forms is difficult to be refined, the embodiment of the present invention provides a temperature-sensing cable laying analysis system that integrates multiple factors, including:

[0067] The station-section level operation group can be deployed at workstations such as stations, section yards, sections, and buildings. By exchanging information with stations, section yards, sections, and buildings, the temperature-sensing cable information at each location is marked, and the relevant marking information is uploaded to the central level. According to the laying decision information fed back by the central-level operation group, the laying curve plans for stations / section yards / sections / buildings are customized, and the number of temperature-sensing cable equipment and cables in stations / section yards / sections / buildings are counted accordingly.

[0068] It should be noted that the station-level operation group includes the station-section / section temperature-sensing cable related information identification function item, the laying curve plan function item, and the report statistics function item.

[0069] The station / section temperature-sensing cable related information identification function item is responsible for exchanging information with stations, sections, sections, buildings, etc. downwards, and for uploading identification information upwards. The identification information of this function group includes the width of the power supply cable bracket / carrier, the spacing between bracket / carrier layers, the straight and curved sections of the temperature-sensing cable laying, the standard length of the temperature-sensing cable product, and the identification of the temperature-sensing cable;

[0070] The laying curve plan function item interacts with the center level upward to obtain the laying decision information fed back by the decision analysis module, such as laying pitch, laying length, curve form, belonging information, etc., and generates a laying curve plan at this level based on the obtained information;

[0071] The report statistics function item summarizes and counts the number of temperature-sensing cable equipment and cables installed at this level based on the laying decision information fed back by the decision analysis module.

[0072] The central-level operation group can be deployed at the line center or at a centralized center selected in the station section, exchange information with the station section level, process the temperature-sensing cable information identification uploaded from the station, section yard, section, building unit, etc., and use the decision analysis module to make decision analysis on the form, pitch, curve length, etc. of the temperature-sensing cable laying; according to the different setting locations of the station, section yard, section, building unit, etc., the grouped display of the station, section yard, section, building unit, etc. is realized, and the number of temperature-sensing cable equipment and cables in the station, section yard, section, building unit, etc. are counted accordingly.

[0073] It should be noted that the center-level operation group includes information identification processing function items, decision analysis module items, curve laying plan function items, report statistics function items, and station section / interval display function items.

[0074] The information identification processing function item processes and organizes the identification of the temperature-sensing cable related information uploaded from the station section / section, unifies the width, spacing, and length units, corrects data missing and errors, and exchanges the processed complete information to the decision analysis module item;

[0075] The decision analysis module item exchanges information with the information identification processing function item, defines and calculates the curve form in sections according to the relevant information identification of the station section / section temperature sensing cable, verifies and obtains the curve length according to different laying pitches, obtains the final laying decision information, and provides the decision analysis information to the center-level laying curve function item and report statistics function item and the station section-level laying curve function item and report statistics function item through the interactive interface;

[0076] The laying curve plan function item interacts with the decision analysis module item to generate and display the temperature-sensing cable laying curves set up in the stations, sections, sections, and building units under the jurisdiction of the center level according to the laying decision information;

[0077] The report statistics function item interacts with the decision analysis module item to generate summary statistics of the number of temperature-sensing cable equipment and cables under the jurisdiction of the center level according to the laying decision information;

[0078] The station / section display function item is used for unified management and display of the system. It can intuitively display the lines, stations, sections, sections, buildings, etc., and identify the number of related temperature-sensing cables. You can customize the selection of a specific station, section, section, building, and realize the display of the temperature-sensing cable laying curve in the corresponding area.

[0079] Please refer to Figure 2The embodiment of the present invention further provides a temperature sensing cable laying analysis method that integrates multiple factors, including:

[0080] Step 1: Identify and initialize the relevant information of the station / section temperature-sensing cable. The relevant information includes the width of the power supply cable bracket / carrier in the station / section, the bracket / carrier layer spacing Interval, the temperature-sensing cable laying straight and curved segment matrix Curve_form, the temperature-sensing cable product standard length Standard_length, the temperature-sensing cable ownership identification Id, type Seq, and quantity num;

[0081] Assume that the station / section temperature sensing cable related information labels shown in Table 1 are obtained at stations, section yards, sections, etc.

[0082] Table 1 Related information identification of station section / section temperature sensing cable

[0083]

[0084] Step 2: Combine the temperature-sensitive cable laying straight and curved segmentation Curve_form, perform information identification processing, and obtain the temperature-sensitive cable laying curve form. The temperature-sensitive cable laying curve form information includes the temperature-sensitive cable protection area segmentation form identification and total length matrix l, repeated laying straight line segment identification and length matrix k, curve segment identification and length matrix lk, and the laying curve matrix Curve_form0() of the curve form normalized to the same x-axis;

[0085] The information of the temperature sensing cable laying curve form includes the identification and the total length matrix l information includes: [the area length of the normal curve laying section and the repeated straight line section to be laid];

[0086] Repeatedly laid straight line segment identification and length matrix k information includes: [length of the repeated laid straight line segment area to be laid];

[0087] The curve segment identification and length matrix lk information includes: [the length of the normal curve laying segment area to be laid];

[0088] If there is a return layout, the matrices l, k, lk each have a new dimension added to store the return data;

[0089] The temperature sensing cable laying curve matrix Curve_form0() information includes:

[0090] The first column stores the curve identification (1 indicates curved laying, 2 indicates straight line repeated laying, 3 indicates return laying)

[0091] The second column stores the starting point of the curve that needs to be laid, which is the total length of the normal curve laying segment, repeated straight line segment, and return laying curve segment area that have been laid previously;

[0092] The third column stores the end point of the curve to be laid, which is the total length of the normal curve laying section / repeated straight line segment / returning curve section area that passes through this section; this matrix is ​​used to draw the temperature sensing cable laying curve;

[0093] Perform information identification processing, as shown in Table 2,

[0094] Table 2 Identification of relevant information of station / section temperature sensing cables

[0095]

[0096]

[0097] The temperature sensing cable laying curve is shown in Table 3.

[0098] Table 3 Temperature sensing cable laying curve form processing,

[0099]

[0100] Step 3: Segment the curve, including normal curve laying segment, repeated straight line segment, and return curve segment; the number of return laying is used as the basis for segmentation, and each segment consists of a curve laying segment and a repeated straight line segment. The number of segments is the number of return segments + 1; Normal curve laying segment curve definition Repeat the straight line segment definition y1 = y s , definition of the return laying curve segment Where A = Width / 2, W = 2π / Step, Width is the information identification content of the initialization, Step is the laying pitch of the temperature sensing cable (selected and verified by the algorithm), The length of the previous turnaround section. The information is obtained in l, It is the total area length of the previous repeated straight line segments in the current laying section. The information is accumulated from each previous repeated laying section. It is necessary to pay attention to each return. Need to be cleared and recalculate the total area length of the preceding repeated straight line segment in the return segment, y s When the straight line segment in each segment starts to be laid, the value of the last point of the previous curve. If there is no previous curve, y s =A, The length of the area where the curve has been laid before the return laying. All the information of x is obtained in Curve_form0();

[0101] Step 4: Calculate the curve segment by segment. The length of the normal curve segment is defined as By default, start=0, and end is obtained from lk. The length of each segment of the repeated straight line segment is obtained from k. Here, it is defined that after each repeated straight line segment, the curve laying still continues the form of the previous curve laying. The length of the return curve segment is defined as Here, it is defined that each return laying starts from 0 according to the new cosine curve form. Here, it is only necessary to recalculate the x information obtained in Curve_form0, that is, start′=0, The additional curve laying length cost for each return laying is Interval + Width. According to the above calculation method, the curve length needs to be calculated. It is also necessary to consider the margin for the on-site cable leading up, leading down, termination and slack, and increase the setting of Margin to determine the curve length.

[0102] curve_length=∑ 分段数 (normal curve laying section or return laying section curve length + repeated laying straight line section + (number of segments - 1) * (Interval + Width)) + Margin;

[0103] Step 5: Standard laying pitch selection and verification of temperature sensing cables and curve length determination stage.

[0104] The general standard laying pitch range of the temperature sensing cable is set to 900mm~1800mm (unit: millimeter, which can be adjusted according to the specific usage scenario). The minimum step number s=900 / (2^10-1) is set by the traversal method within the pitch range. The pitch that meets the curve form segmentation calculation requirements is verified. If the requirements are met, the laying pitch, curve length, curve form and other laying schemes under the corresponding curve form segmentation can be obtained. At the same time, the selection of custom pitches can be realized; the pitch and curve that meet the requirements are obtained;

[0105] The stage of selecting and verifying the special laying pitch of temperature sensing cables and obtaining the curve length. When the requirements cannot be met within the range of 0.9m to 1.8m, a genetic algorithm is used to determine the laying pitch, curve length, curve form and other schemes under the corresponding curve form segmentation; in order to prevent the situation where all individuals in the initialized population do not meet the requirements when using the genetic algorithm, m is introduced, and Step=1800+900*(m-1) is defined to preliminarily estimate the area where the pitch is located, wherein the population size population_size, the chromosome number chromosome_dim, the genetic crossover probability cp, the genetic mutation probability mp, and the number of iterations iter are defined according to actual needs, and the fitness function Fitness=1 / (Standard_length-curve_length) is defined to obtain the curve length and excellent individuals that maximize the fitness function value. After genetic crossover, genetic mutation, pairwise tournament selection and multiple iterations, the optimal pitch is obtained. Finally, a minimum change step number Δs=1 is set, and Step'=Step-Δs is set. The obtained optimal individual and its pitch and curve length are verified and corrected to obtain the final laying pitch and curve length.

[0106] The present invention is further described below in conjunction with embodiments:

[0107] Embodiment 1:

[0108] According to Table 2 and Table 3, for Id=S1, Seq=1, Width=400mm, Interval=210mm, Curve_form=[1 80000; 2 5000; 1 20000], Standard_length=200000, num=3, we get l=[105000], k=

[5000] , lk=[100000], Curve_form0=[10 80000; 2 80000 85000; 1 85000105000]. Since l is 1 row, there is no return laying section. k is not 0, there is a straight line segment. For the first normal curve segment Curve_form0(1) = [1 0 80000], there is no straight line segment in its preceding sequence, so The curve form is Repeat for the second segment. For the third normal curve segment Curve_form0(3) = [1 85000 105000], there is a straight line segment in its predecessor, so For the first normal curve segment length

[0109] For the third normal curve, we have

[0110]

[0111] Then the normal curve segment calculation length The range of this length evaluation is exactly the value in the above lk. For the second repeated straight line segment, the length is Len2 = k(1) = 5000. The cable slack is calculated as 5%. The cable lead-up, lead-down and termination are calculated as 7m (different treatments can be made for different site conditions). Then

[0112] curve_length = ∑1(Len1+Len2)+(Len1+Len2)*0.05+7000. This involves integral calculation and requires an algorithm to solve.

[0113] Set Step = 900: (900 / (2^10-1)): 1800, and traverse in sequence. When the pitch Step = 900mm, the cable laying length meets the requirement of not more than the standard length. At this time, Len1 = 138224.08mm, Len2 = 5000mm, Margin = 14161.20mm, curve_length = 157385.29mm. It can be seen that when the laying pitch is not less than 900mm, the first type of temperature-sensitive cable laying form for the station can be laid according to the "S" curve-straight line-"S" curve, and the required length is 157385.29mm.

[0114] The stage of selecting and verifying the special laying pitch of temperature sensing cables and obtaining the curve length. When the requirements cannot be met within the range of 0.9m to 1.8m, a genetic algorithm is used to determine the laying pitch, curve length, curve form and other schemes under the corresponding curve form segmentation; in order to prevent the situation that all individuals in the initialized population do not meet the requirements when the genetic algorithm is used, m is introduced, and Step = 1800 + 900 * (m-1) is defined to preliminarily estimate the area where the pitch is located, wherein the population size population_size, the number of chromosomes chromosome_dim, the genetic crossover probability cp, the genetic mutation probability mp, and the number of iterations iter are defined according to actual needs, and the fitness function Fitness = 1 / (Standard_length-curve_length) is defined to obtain the curve length and excellent individuals that maximize the fitness function value. After genetic crossover, genetic mutation, two-by-two tournament selection and multiple iterations, the optimal pitch is obtained, and finally a minimum change step number Δs = 1 is set, and Step' = Step-Δs is set. The obtained optimal individual and its pitch and curve length are verified and corrected to obtain the final laying pitch and curve length;

[0115] Embodiment 2:

[0116] According to Table 2 and Table 3, for Id=S1, Seq=2, Width=400mm, Interval=210mm, Curve_form=[2 5000; 1 40000; 2 20000; 1 30000; 3 80000], Standard_length=200000, num=1, we get l=[95000; 80000], k=[25000; 0], lk=[70000; 80000], Curve_form0=[2 0 5000; 1 5000 45000; 2 45000 65000; 165000 95000; 3 95000] 175000], since l is ≥ 2 rows, there is a return segment, and there is only one return, k(1) is not 0, there is a straight line segment before the return, k(2) is 0, there is no straight line segment in the return segment; for the first repeated straight line segment Curve_form0(1) = [2 0 5000], y1 = y s =Width / 2=200. For the second normal curve segment Curve_form0(2)=[1 500045000], there is a straight line segment in its predecessor. There is no return segment before it The curve form is Repeat the third straight line segment Curve_form(3) = [2 45000 65000], For the fourth normal curve segment Curve_form(4) = [1 65000 95000], there are two straight line segments in its predecessor, so There is no return segment before it The curve form is For the fifth return curve segment Curve_form(5) = [395000 175000], since the curve returns, the length of the straight line segment in the return segment needs to be recalculated. There is no straight line segment before this curve, so This curve turns back once, so The curve form is For the first and third segments, the length of the straight line segment is repeated, Len2=k(1)=25000, and for the second segment, the length of the normal curve is For the fourth normal curve, we have Then the normal curve segment calculation length The reason why the combined evaluation can be done here is that when laying cables, it is required that after the straight line segment is laid, the curved laying form should continue the laying form of the previous curve. For the fifth return laying section, the length is

[0117] Since there is one turnaround, the additional turnaround cost Interval+Width=610, the cable slack is calculated as 5%, and the cable lead-up, lead-down, and termination are calculated as 7m (different treatments can be made for different on-site conditions), then curve_length=∑2(Len1+Len2+Len1′)+610+(Len1+Len2+Len1′+610)*0.05+7000, which involves integral operations and requires an algorithm to solve. Using a genetic algorithm, first preliminarily estimate the solution space that meets the requirements, set Step=1800+900*(m-1), according to the algorithm m=2, that is, the pitch that meets the requirements falls within the interval [1800 2700], set the population size population_size=50, the number of chromosomes chromosome_dim=10, the genetic crossover probability cp=0.6, the genetic mutation probability mp=0.1, and the number of iterations iter=100.

[0118] When the pitch Step = 2634.9mm, the cable laying length meets the requirement of not more than the standard length. At this time, Len1 = 73816.55mm, Len2 = 25000mm, Len1' = 84382.56mm, Margin = 16190.46mm, curve_length = 199999.58mm. It can be seen that when the laying pitch is not less than 2634.9mm, the second type of temperature sensing cable laying form for the station can be laid according to the straight line - "S" curve - straight line - "S" curve - return "S" curve, and the required length is 199999.58mm. If the pitch is appropriately increased, the cable length can be appropriately reduced.

[0119] The final pitch, curve length, related identification and other laying decision information are fed back to the center level and station level respectively.

[0120] Step 6: Implement the curve laying plan based on the decision analysis results.

[0121] Step 7: Visually display the relevant laying curves, display the entire station section / section at the center level, and display the sub-equipment at the station section level.

[0122] Please refer to Figure 4In the above embodiment 1, the pitch Step = 900 mm, and the cable laying length satisfies the requirement of not exceeding the standard length, curve_length = 157385.29 mm. For the first type of station temperature sensing cable laying form, it can be laid according to the "S" curve-straight line-"S" curve, and the required length is 157385.29 mm. The generated laying curve is shown in the figure;

[0123] Please refer to Figure 5 In the above embodiment 2, the pitch Step = 2634.9 mm, the cable laying length satisfies the requirement of not more than the standard length, curve_length = 199999.58 mm. When the laying pitch is not less than 2634.9 mm, the second type of temperature sensing cable laying form for the station can be laid according to the straight line - "S" type curve - straight line - "S" type curve - return "S" type curve, and the required length is 199999.58 mm. The generated laying curve is shown in the figure;

[0124] It should be understood that the cable laying between different layers is three-dimensional, and this laying curve displays the return laying data on a two-dimensional plane.

[0125] Step 8: Carry out statistical reports on related equipment and materials according to the identification ID of the temperature-sensing cable; carry out statistical reports on equipment and materials at corresponding points at stations, sections, and intervals according to the laying decision analysis information fed back by the center.

[0126] The overall display of the central-level station section / section is customized according to different needs. The station section-level equipment display is classified according to the temperature-sensing cable category Seq. One type of display is selected for the same category. If the setting location is different, the location attribute can be added for distinction. For the classification of stations, sections, sections, etc., it is necessary to distinguish them in combination with the belonging identification Id; further, the equipment can be classified and summarized and counted in combination with the belonging identification Id, num attribute and temperature-sensing cable category Seq.

[0127] Example 3

[0128] As another aspect of the embodiment of the present invention, a temperature sensing cable laying analysis device in an automatic fire alarm system that integrates multiple factors is also provided, including:

[0129] The information identification and initialization unit is used to identify and initialize the relevant information of the station section / section temperature sensing cable. The relevant information includes: the width Width of the power supply cable bracket / carrier in the station section / section, the bracket / carrier layer spacing Interval, the temperature sensing cable laying straight and curved segment matrix Curve_form, the temperature sensing cable product standard length Standard_length, the temperature sensing cable ownership identification Id, type Seq, and quantity num;

[0130] The information identification processing unit is used to process and organize the information identification of the temperature-sensing cable transmitted from the station section / section, unify the width, spacing, and length units, and correct the missing data and errors;

[0131] The curve segmentation unit is used to segment based on the number of return laying times. Each segment consists of a curve laying segment and a repeated laying straight line segment, including a normal curve laying segment, a repeated laying straight line segment, and a return laying curve segment; and the function of each curve segment is defined separately;

[0132] The curve segment length calculation unit is used to calculate the curve segment length, including the definition of the normal curve laying segment length, the definition of the repeated laying straight line segment length, the return laying curve segment length, the return laying curve cost, and the curve margin;

[0133] The pitch selection verification and curve length calculation unit is used for standard laying pitch selection verification and curve length calculation of temperature-sensitive cables; standard laying pitch selection verification of temperature-sensitive cables, and traversal method is used to find a suitable laying curve within the pitch range; the pitch Step is set within the standard range of [0.9m, 1.8m], and the pitch Step is substituted into the length formula to calculate the curve length; when the requirements cannot be met within the range of 900mm to 1800mm, the special laying pitch selection verification of temperature-sensitive cables is used, and the special pitch Step is determined using a genetic algorithm;

[0134] The laying decision plan making unit is used to obtain the temperature sensing cable laying pitch and the cable laying length that meet the requirements, and make corresponding laying decision plans.

[0135] According to Table 2, Table 3 and Example 1, Example 2:

[0136] Please refer to Figure 5 Station S1 contains 2 types of temperature sensing cables. Type 1 is laid with a pitch of Step = 900mm. The length is about 157385.29mm. The number is 3. The laying curve is as follows: Figure 3 As shown; Category 2, using a pitch of Step = 2634.9mm for laying, the length is about 199999.58mm, the quantity is 1, and the laying curve is shown in the figure;

[0137] Please refer to Figure 6 The vehicle section D1 contains a type 1 temperature sensing cable, which is laid with a pitch of Step = 900 mm, and the length is about 94074.70 mm. The number is 1, and the laying curve is shown in the figure. The solution process here refers to Example 1 and will not be repeated;

[0138] Please refer to Figure 7, Section Q2 contains a Class 1 temperature sensing cable, which is laid with a pitch of Step = 900 mm, and the length is about 123637.08 mm, and the number is 4. The laying curve is shown in the figure. The solution process here refers to Example 1 and will not be repeated;

[0139] It should be pointed out that for pitches within the standard pitch range, it is considered that the standard length of the temperature sensing cable is relatively sufficient and the pitch can be customized by the user. This method can basically verify the customized pitch to meet the customized needs. For pitches outside the standard pitch range, it is considered that the laying of the temperature sensing cable is greatly restricted by the standard length of the temperature sensing cable. The laying plan is verified with the goal of finding the minimum pitch.

[0140] Compared with the prior art, the embodiment of the present invention provides a temperature sensing cable laying analysis system and method that integrates multiple factors and has the following positive effects:

[0141] In view of the fact that the research related to temperature-sensing cables focuses on products but neglects system design, the present invention realizes the overall unified management and laying decision analysis of line-level temperature-sensing cable laying through the setting of a central-level operation group, and realizes the intuitive display and design of temperature-sensing cables in various locations of a certain station section / section through the setting of a station-level operation group.

[0142] Taking into account various influencing factors at comprehensive lines, stations, sections and intervals, such as the width of the power supply cable bracket / carrier, the spacing between bracket / carrier layers, the straight and curved sections of the temperature sensing cable laying, the standard length of the temperature sensing cable products, the identification of the temperature sensing cable, etc., the temperature sensing cable is labeled with relevant information to achieve refined system design and effectively control construction safety.

[0143] It is divided into center-level operation group and station-level operation group, and the analysis and decision-making are centrally deployed at the center to simplify the station-level configuration and operation. When the analysis and decision-making module function is upgraded, only the center needs to be upgraded, and no station-level operation is required.

[0144] By setting up a decision analysis module, suggestions for temperature-sensing cable laying plans are provided. The laying pitch, laying length, laying curve form, temperature-sensing cable equipment and cable quantity statistics can be intuitively understood, providing guidance for system design and construction.

[0145] The laying pitch is divided into standard section and special section. The standard section is solved by traversal method, and the special section is solved by genetic algorithm respectively to avoid solving in completely open interval. The algorithm efficiency is relatively high.

[0146] The above description is only a specific implementation of the present invention. It should be noted that for other similar detection equipment, the "S" type laying is also applicable to the system and method.

[0147] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A comprehensive analysis method for laying temperature-sensing cables in an automatic fire alarm system, characterized in that The following steps are involved: Step 1: Identify and initialize the relevant information of the temperature sensing cable; Step 2: Perform information identification processing to obtain the segmented form identification and total length matrix 1 of the temperature-sensitive cable protection area, the repeated laying straight line segment identification and length matrix k, the curve segment identification and length matrix lk, and the laying curve matrix Curve_form0(); Step 3: Segment the curve, including normal curve laying segment, repeated straight line segment, and return laying curve segment; the number of return laying is used as the segmentation basis, each segment includes a curve laying segment and a repeated straight line segment, and each curve is defined separately; Step 4: Calculate the length of curve segments, including the definition of normal curve laying segment length, repeated straight line segment length, return laying curve segment length, return laying curve overhead, and curve margin; Step 5: Verify the standard laying pitch of the temperature-sensing cable and calculate the curve length; Verify the standard laying pitch of the temperature-sensing cable and use the traversal method to find a suitable laying curve within the pitch range; The pitch Step is set within the standard range of [0.9m, 1.8m], and the pitch Step is substituted into the length formula to calculate the curve length; Step six: Get the required temperature sensing cable laying pitch and cable laying length, and make corresponding laying decision plan.

2. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: Also includes: Step 7; Curved laying scheme and curve diagram display; Step 8: Display and summary statistics of equipment and materials.

3. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: The step one: the relevant information includes the width Width of the power supply cable support / bracket in the station section / interval, the support / bracket layer spacing Interval, the temperature sensing cable laying straight and curved segment matrix Curve_form, the temperature sensing cable product standard length Standard_length, the temperature sensing cable affiliation identification Id, type Seq, and quantity num.

4. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: The step 2 specifically includes: The information of the temperature sensing cable laying curve form includes the identification and the total length matrix l information includes: [the area length of the normal curve laying section and the repeated straight line section to be laid]; Repeatedly laid straight line segment identification and length matrix k information includes: [length of the repeated laid straight line segment area to be laid]; The curve segment identification and length matrix lk information includes: [the length of the normal curve laying segment area to be laid]; If there is a return laying, then the matrices l, k, lk each add a new dimension to store the return data; the temperature-sensitive cable laying curve matrix Curve_form0() information includes: the first column stores the curve identifier (1 indicates curve laying, 2 indicates straight line repeated laying, and 3 indicates return laying); the second column stores the starting point of the curve that needs to be laid, which is the total length of the normal curve laying segment, repeated straight line segment, and return laying curve segment area that have been laid in the previous sequence; the third column stores the end point of the curve that needs to be laid, which is the total length of the normal curve laying segment / repeated straight line segment / return laying curve segment area that passes through this segment; this matrix is ​​used to draw the temperature-sensitive cable laying curve.

5. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: The step three specifically includes: The curve laying function is calculated segment by segment according to the curve form. The calculation formula of each segment curve function is: The normal curve laying segment curve is defined as: Repeated straight line segment is defined as: y1 = y s , the return laying curve segment is defined as: Where A = Width / 2, W = 2π / Step, where Width is the information identification content of the initialization, and Step is the laying pitch of the temperature sensing cable. The length of the previous turnaround section. The information is obtained in l, It is the total area length of the previous repeated straight line segments in the current laying section. The information is accumulated from each previous repeated laying section. It is necessary to pay attention to each return. Need to be cleared and recalculate the total area length of the preceding repeated straight line segment in the return segment, y s When the straight line segment in each segment starts to be laid, the value of the last point of the previous curve. If there is no previous curve, y s =A, The length of the area where the curve has been laid before the return laying. All pieces of information about x are obtained in Curve_form0().

6. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: The step 4 specifically includes: The normal curve laying section curve length is defined as The default start=0, end is obtained from lk; The length of each segment of the repeated straight line segment is obtained from k. Here, it is defined that after each repeated straight line segment is laid, the curve laying still continues the form of the previous curve laying; The length of the return laying curve segment is defined as Here, it is defined that each return laying starts from 0 according to the new cosine curve form. Here, it is only necessary to recalculate the x information obtained in Curve_form0(), that is, start′=0, The additional cost of the return laying curve for each return laying is Interval + Width; according to the above calculation method, the curve length is obtained, and the margin for the on-site cable leading up, leading down, termination and slackness needs to be considered, and the curve margin Margin is added to determine the curve formula length: curve_length=∑ 分段数 (Normal curve laying section or return laying section curve length + repeated laying straight line segment + (number of segments - 1) * (Interval + Width)) + Margin.

7. The comprehensive analysis method for laying temperature-sensitive cables in an automatic fire alarm system according to claim 1 is characterized in that: The step five also includes selecting and verifying the special laying pitch of the temperature sensing cable when the requirements cannot be met within the range of 900 mm to 1800 mm, and using a genetic algorithm to determine the special pitch Step.

8. A comprehensive analysis device for laying temperature-sensitive cables in an automatic fire alarm system: It is characterized in that include: The information identification and initialization unit is used to identify and initialize the relevant information of the station section / section temperature sensing cable. The relevant information includes: the width Width of the power supply cable bracket / carrier in the station section / section, the bracket / carrier layer spacing Interval, the temperature sensing cable laying straight and curved segment matrix Curve_form, the temperature sensing cable product standard length Standard_length, the temperature sensing cable ownership identification Id, type Seq, and quantity num; The information identification processing unit is used to process and organize the information identification of the temperature-sensing cable transmitted from the station section / section, unify the width, spacing, and length units, and correct the missing data and errors; The curve segmentation unit is used to segment based on the number of return laying times. Each segment consists of a curve laying segment and a repeated laying straight line segment, including a normal curve laying segment, a repeated laying straight line segment, and a return laying curve segment; and the function of each curve segment is defined separately; The curve segment length calculation unit is used to calculate the curve segment length, including the definition of the normal curve laying segment length, the definition of the repeated laying straight line segment length, the return laying curve segment length, the return laying curve cost, and the curve margin; The pitch selection verification and curve length calculation unit is used for standard laying pitch selection verification and curve length calculation of temperature-sensitive cables; standard laying pitch selection verification of temperature-sensitive cables, and traversal method is used to find a suitable laying curve within the pitch range; the pitch Step is set within the standard range of [0.9m, 1.8m], and the pitch Step is substituted into the length formula to calculate the curve length; when the requirements cannot be met within the range of 900mm to 1800mm, the special laying pitch selection verification of temperature-sensitive cables is used, and the special pitch Step is determined using a genetic algorithm; The laying decision plan making unit is used to obtain the temperature sensing cable laying pitch and the cable laying length that meet the requirements, and make corresponding laying decision plans.

9. A comprehensive analysis system for laying temperature-sensitive cables in an automatic fire alarm system, characterized in that: The temperature sensing cable laying analysis system includes station-level operation group and center-level operation group; The station-level operation group includes: a station-section / section temperature-sensing cable related information identification module and a curve laying plan module; The station-level station-section / section temperature-sensing cable related information identification module includes: a module for summarizing and counting station-section information, identifying the temperature-sensing cables according to the different settings of the temperature-sensing cables in stations / sections / sections, and uploading the relevant summary statistics and identification to the center level; The station-level station / section laying curve plan module customizes the laying decision information fed back by the central-level operation group into a laying curve plan, interacts with the central level, and obtains the laying decision information fed back by the central-level decision analysis module, including laying pitch, laying length, curve form, and attribution information; based on the obtained information, a laying curve plan is generated at this level. The curve can be used to intuitively understand the laying pitch, laying length, and laying curve form of the temperature-sensitive cable; The center-level operation includes: decision analysis module, curve laying program module, report statistics module; The decision analysis module of the central operation group processes the received information, including obtaining the curve form in sections (step three), selecting and verifying the laying pitch (step five), obtaining the curve laying length under the selected pitch (step four), and providing the decision analysis information to other modules respectively; The laying curve scheme function item module interacts with the decision analysis module item, generates and displays the temperature-sensitive cable laying curves set at the stations, sections, sections, building units, etc. under the jurisdiction of the center level according to the laying decision information; The report statistics function item module interacts with the decision analysis module item to generate summary statistics on the number of temperature-sensing cable equipment and cables under the jurisdiction of the center level according to the laying decision information.

10. A comprehensive analysis system for laying temperature-sensitive cables in an automatic fire alarm system according to claim 9, characterized in that: The center-level operation also includes an information identification processing module, which processes and organizes the temperature-sensing cable related information identification uploaded from the station section / section, unifies the width, spacing, and length units, corrects data missing and errors, and exchanges the processed information to the decision analysis module.

Images