Indoor decoration wiring method fusing BIM model and laser positioning

Abstract

The invention relates to the field of decoration wiring design, is used for solving the problems that the wiring design of a five-constant system depends on the experience level of constructors, the wiring reasonability of the five-constant system cannot be systematically quantified, and the use effect of the five-constant system is affected, and particularly relates to an indoor decoration wiring method fusing a BIM model and laser positioning. The indoor environment is collected through laser ranging, a BIM modeling technology is used for achieving model construction, virtual construction of a capillary tube heat exchange disc and a main pipeline of a five-constant system and generation of size characteristics of the capillary tube heat exchange disc and related parameters of a capillary tube are conducted in a BIM model through a preset algorithm, and the capillary tube heat exchange disc is obtained. Therefore, the operation process of the five-constant system is simulated, whether the indoor temperature control capability of the pipeline reaches the standard or not and the heat loss condition of the pipeline circulation process are calculated according to the simulation process, standardized evaluation of the wiring construction process of the five-constant system is achieved, the method does not depend on personnel experience completely, and the construction effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of decoration wiring design, in particular to an indoor decoration wiring method combining BIM model and laser positioning. BACKGROUND

[0002] Traditional indoor air conditioners are one of the commonly used cooling devices in families, but they have many shortcomings in actual use, such as gas internal circulation, poor indoor air quality, easy breeding of bacteria in the indoor unit condensate water tray, poor heat exchange effect, and uneven local cooling and heating, etc. With the continuous improvement of living standards, the traditional air conditioning system has been unable to meet the needs, and therefore a new concept of five-constant ecological air conditioning system has emerged, i.e. constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant quietness.

[0003] In the five-constant system, the heat exchange coil is one of the most important supporting components in the five-constant system. The heat exchange coil generally connects multiple groups of capillary tubes as a medium through a main pipeline, and adjusts the indoor temperature by flowing a liquid at a specific temperature. Therefore, the wiring design of the capillary pipeline and the main pipeline is particularly important, and various building conditions and structures need to be considered during actual installation.

[0004] In the prior art, during the installation and construction of the five-constant system, the most important wiring design and installation of the five-constant system are mostly guided by installation methods, and are designed and decided by workers on site, such as the contents of Chinese patent applications CN2018105115777 and CN2024214613151. Therefore, the temperature regulation effect and energy consumption performance of the five-constant system after installation are largely dependent on the experience level of the construction personnel, which easily leads to uneven quality of the five-constant system during installation and affects the normal use of the five-constant system. SUMMARY

[0005] The present application collects the indoor environment by laser ranging, and realizes model construction by BIM modeling technology. The capillary heat exchange coil and the main pipeline of the five-constant system are virtually constructed in the BIM model through a preset algorithm, so as to simulate the operation process of the five-constant system. Whether the indoor temperature control ability of the pipeline meets the standard and the heat loss of the pipeline circulation process are calculated according to the simulation process, so as to realize the standardized evaluation of the wiring construction process of the five-constant system, instead of relying completely on personnel experience, and to ensure the construction effect, so as to solve the problem that the wiring design of the five-constant system depends on the experience level of construction personnel, cannot quantitatively evaluate the wiring rationality of the five-constant system, and affects the use effect of the five-constant system, and proposes an indoor decoration wiring method combining BIM model and laser positioning.

[0006] The purpose of the present application can be achieved by the following technical solution: an indoor decoration wiring method combining BIM model and laser positioning, comprising the following steps: Step one: measure the distance of indoor space by laser range finder, obtain the number of rooms and the airflow parameters of each room; Step two: create a BIM model of the indoor space, and generate capillary scale according to the size information of each room; Step three: generate main pipeline scale according to the generated capillary scale, and obtain the wiring starting point and wiring endpoint range, connect the wiring starting point and wiring endpoint range through the wiring model, and generate the main pipeline path; Step four: simulate the capillary scale through the model to calculate the capillary flow parameter; Step five: divide the main pipeline path into output pipeline and recovery pipeline according to the liquid flow direction in the main pipeline path, and calculate the heat exchange ratio between the output pipeline and the recovery pipeline combined with the capillary flow parameter, and generate pipeline optimization signal according to the heat exchange ratio; Step six: manually intervene and adjust the existing wiring situation to generate a new main pipeline path.

[0007] As a preferred embodiment of the present application, it also includes an indoor decoration wiring system combining BIM model and laser positioning, which specifically includes a parameter measurement module, a model running module, a model output correction module, a wiring generation module and a wiring verification module; The parameter measurement module obtains the measurement results through the laser range finder, and obtains the number of rooms, and calculates the volume of each room according to the measurement results, and analyzes the volume, floor height and room length-width ratio to obtain the airflow parameter; The model running module obtains the measurement results of the parameter measurement module, and creates a BIM model of the indoor space, and generates a capillary scale according to the BIM model of the indoor space, wherein the capillary scale includes the total length of the capillary, the overall size of the capillary; The model running module generates capillary flow parameters by combining airflow parameters after obtaining capillary scale, and the capillary flow parameters include capillary liquid flow rate, capillary interval distance and capillary diameter; The wiring generation module obtains the preset wiring starting point, and obtains the capillary scale through the model running module, extracts the wiring endpoint range according to the capillary scale, and generates the main pipeline path through the algorithm; The wiring verification module obtains the capillary flow parameter through the model running module, and generates the main pipeline flow parameter according to the capillary flow parameter, obtains the main pipeline path through the wiring generation module, and performs heat interaction analysis according to the main pipeline path and the main pipeline flow parameter to generate the pipeline optimization signal or the pipeline normal signal; The model output correction module obtains the pipeline optimization signal through the wiring verification module, and generates a wiring optimization reminder.

[0008] As a preferred embodiment of the present application, the parameter measurement module obtains the number of rooms in a manual input manner, and classifies the measured height, length and width of the room by manual input. The parameter measurement module automatically calculates the room volume based on the height, length and width of the room, and obtains the air flow parameter in the following manner: The parameter measurement module calculates the height, volume, length and width of the room by a formula, and obtains the air flow parameter based on the calculation result. The air flow parameter is the difficulty of temperature control of the room by the capillary tube, and the air flow parameter is inversely proportional to the difficulty of temperature control of the room.

[0009] As a preferred embodiment of the present application, the model running module obtains the length and width of the room when generating the capillary tube scale, and obtains a preset redundancy value respectively. The capillary tube group length and the capillary tube group width are obtained by subtracting the redundancy value from the length and the width of the room, respectively. The capillary tube group length and the capillary tube group width are recorded as the overall size of the capillary tube. The model running module obtains the room volume, and generates the total length of the capillary tube based on the room volume and the overall size of the capillary tube by formula analysis.

[0010] As a preferred embodiment of the present application, the model running module generates the capillary tube flow parameter in the following manner: The model running module obtains the total length of the capillary tube, and obtains the capillary tube heat dissipation characteristic value based on the total length of the capillary tube and a preset temperature difference value. The capillary tube heat dissipation characteristic value and the air flow parameter are calculated by a formula to obtain a capillary tube heat dissipation difference value. The model running module obtains a preset basic flow parameter, and calculates the capillary tube flow parameter based on the capillary tube heat dissipation difference value and the basic flow parameter.

[0011] As a preferred embodiment of the present application, the wiring generation module obtains the wiring end point range in the following manner: The wiring generation module obtains the connection direction of the room based on the indoor space BIM model. The connection direction is the side connected by the door of the room and other spaces. The wiring generation module takes the side length corresponding to the overall size of the capillary tube in the connection direction as the wiring end point range. The wiring generation module connects the wiring starting point and the wiring end point range of each room by a path generation algorithm to obtain the main pipeline path. The area where the liquid flows from the wiring starting point to the wiring end point range is recorded as the output pipeline, and the area where the liquid flows from the wiring end point range to the wiring starting point is recorded as the recovery pipeline.

[0012] As a preferred embodiment of the present application, the wiring generation module sets the connection points of the recovery pipeline and the output pipeline at both ends of the wiring terminal range after obtaining the wiring terminal range.

[0013] As a preferred embodiment of the present application, the wiring verification module calculates the capillary liquid flow rate and the capillary diameter in the capillary flow parameter of each room to obtain the capillary liquid flow, and sums up the capillary liquid flow to obtain the main pipeline flow parameter by multiplying a set coefficient greater than 1. The wiring verification module calculates the heat loss coefficient of the overlapping area of the output pipeline and the recovery pipeline through a thermodynamic model, and judges the heat loss coefficient with a set threshold value. If the heat loss coefficient is greater than the set threshold value, a pipeline optimization signal is obtained. If the heat loss coefficient is not greater than the set threshold value, a pipeline normal signal is obtained.

[0014] Compared with the prior art, the present application has the following advantages: 1. In the present application, the indoor environment is comprehensively data collected by laser ranging, and accurate model construction is realized by using BIM modeling technology according to the data collection results. The virtual construction of the capillary heat exchange disc and the main pipeline of the five-constant system is carried out in the BIM model through a preset algorithm, and the heat efficiency is further analyzed through the construction results, so as to simulate the operation process of the five-constant system. According to the simulation process, whether the pipe temperature control ability meets the standard and the heat loss of the pipe circulation process are calculated, so as to realize the standardized evaluation of the wiring construction process of the five-constant system, instead of relying completely on personnel experience, and ensure the construction effect.

[0015] 2. In the present application, when the capillary heat exchange disc and the main pipeline are virtually constructed, the size characteristics of the indoor space are fully collected, the size characteristics of the capillary heat exchange disc are generated in combination with the layer height, volume and room length-width ratio, and the indoor temperature radiation difficulty is quantitatively evaluated by means of airflow parameter. In combination with the airflow parameter and the size characteristics of the capillary heat exchange disc, the specific capillary related parameters are generated, so that the capillary heat exchange disc can be fitted to the indoor space characteristics, the heat exchange capacity can meet the standard, and the operation effect of the five-constant system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0017] Figure 1 The system block diagram of the present application is shown in Fig. 1. Figure 2 The system flowchart of the present application is shown in Fig. 2. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in connection with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Embodiment one: please refer to Figure 1 Figure 2 As shown in the figure, the indoor decoration wiring method combining BIM model and laser positioning comprises the following steps: Step one: measure the distance of indoor space by laser range finder, record the total number of rooms to be tested, and set the room number at each measurement, and make the measurement results one-to-one corresponding to the rooms, and calculate the air flow parameters of each room through the set algorithm; Step two: create a BIM model of the indoor space, and generate capillary tube scales according to the size information of each room; Step three: generate main pipeline scales according to the generated capillary tube scales, ensure that the flow of the main pipeline can cover the flow scale of all capillary tubes, and reserve a certain redundancy value, use BIM modeling to obtain the wiring starting point and wiring endpoint range, connect the wiring starting point and wiring endpoint range through the pre-trained wiring model, and generate the main pipeline path; Step four: combine the capillary tube scale with the air flow parameter in the room to simulate through the model, calculate the capillary tube flow parameter, and make the heat dissipation capacity of the capillary tube meet the standard; Step five: divide the main pipeline path into output pipeline and recovery pipeline according to the liquid flow direction in the main pipeline path, and combine the capillary tube flow parameter to calculate the heat exchange ratio between the output pipeline and the recovery pipeline, judge the threshold value according to the heat exchange ratio, and generate pipeline optimization signal according to the threshold value judgment result; Step six: manually intervene and adjust the existing wiring condition to generate a new main pipeline path.

[0020] Embodiment two: please refer to Figure 1 Figure 2 As shown in the figure, a kind of indoor decoration wiring system combining BIM model and laser positioning, specifically comprising parameter measurement module, model running module, model output correction module, wiring generation module and wiring verification module; ​​The parameter measurement module obtains measurement results through a laser range finder, and classifies the measured layer height, room length and width through a manual input mode, while obtaining the number of rooms. The parameter measurement module obtains the number of rooms in a manual input mode, and the number of rooms is in the form of 1, 2, 3…n numbering, which is used to distinguish different rooms. The parameter measurement module automatically calculates the room volume by the layer height, room length and width, and analyzes the volume, layer height and room length-width ratio to obtain the airflow parameter; The method for the parameter measurement module to obtain the airflow parameter is: The parameter measurement module records the layer height as L, the volume as V, the room length as X, and the room width as Y, and calculates the airflow parameter QZ according to the calculation results, where j is a preset constant term, and the airflow parameter is the difficulty of temperature control of the capillary tube on the room. The airflow parameter is inversely proportional to the difficulty of temperature control of the room; The model running module obtains the measurement results of the parameter measurement module, and creates a BIM model of the indoor space to generate a capillary tube scale, wherein the capillary tube scale includes a total capillary tube length and a total capillary tube size. The specific process is as follows: S1: When generating the capillary tube scale, the model running module obtains the room length and the room width, and obtains a preset redundancy value respectively. The capillary tube group length and the capillary tube group width are obtained by subtracting the redundancy value from the room length and the room width, respectively. The capillary tube group length and the capillary tube group width are recorded as the total capillary tube size. S2: The model running module obtains the room volume, and generates the total capillary tube length by analyzing the room volume and the total capillary tube size according to a formula.

[0021] After obtaining the capillary tube scale, the model running module generates a capillary tube flow parameter in combination with the airflow parameter. The method for the model running module to generate the capillary tube flow parameter is as follows: The model running module obtains the total capillary tube length, and obtains a capillary tube heat dissipation characteristic value MT according to the total capillary tube length and a preset temperature difference value, where η is a set coefficient for balancing the order of magnitude difference between MT and QZ in subsequent capillary tube heat dissipation difference calculation, S is the total capillary tube length, and △T is the preset temperature difference value. The capillary tube heat dissipation characteristic value and the airflow parameter are calculated by a formula to obtain a capillary tube heat dissipation difference MZ, where k is a preset weight coefficient, and the model running module obtains a preset basic flow parameter ci. The capillary tube flow parameter Ci is obtained by calculating the capillary tube heat dissipation difference and the basic flow parameter, ; The capillary tube flow parameter includes a capillary tube liquid flow rate, a capillary tube spacing distance and a capillary tube diameter. The wiring generation module obtains a preset wiring starting point, and obtains a capillary scale through the model running module, extracts a wiring endpoint range according to the capillary scale, and generates a main pipeline path through an algorithm; The method for the wiring generation module to obtain the wiring endpoint range is: The wiring generation module obtains a connection direction of the room through the indoor space BIM model, wherein the connection direction is a side connected by a room door and other spaces, and the wiring generation module takes a side length corresponding to the overall size of the capillary in the connection direction as the wiring endpoint range; The wiring generation module connects the wiring starting point and the wiring endpoint range of each room through a path generation algorithm to obtain a main pipeline path, wherein a region in which liquid flows from the wiring starting point to the wiring endpoint range is recorded as an output pipeline, and a region in which liquid flows from the wiring endpoint range to the wiring starting point is recorded as a recovery pipeline; After obtaining the wiring endpoint range, the wiring generation module sets the connection points of the wiring endpoint range, the recovery pipeline and the output pipeline at both ends of the wiring endpoint range, respectively; The wiring verification module obtains a capillary flow parameter through the model running module, the wiring verification module calculates the capillary liquid flow rate and the capillary diameter in the capillary flow parameter of each room to obtain a capillary liquid flow, and performs summation, and obtains a main pipeline flow parameter by multiplying a set coefficient greater than 1, obtains the main pipeline path through the wiring generation module, and the wiring verification module calculates a heat loss coefficient through a thermodynamic model in a coincident region of the output pipeline and the recovery pipeline, and judges the heat loss coefficient with a set threshold value, if the heat loss coefficient is greater than the set threshold value, a pipeline optimization signal is obtained, if the heat loss coefficient is not greater than the set threshold value, a pipeline normal signal is obtained; The model output correction module obtains the pipeline optimization signal through the wiring verification module, and generates a wiring optimization reminder, so as to remind the designer that there is an optimal interval in the wiring result, and then manually optimize the wiring.

[0022] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the present application. The present application selects and describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. The indoor decoration wiring method integrating BIM model and laser positioning is characterized by: The following steps are involved: Step 1: Use a laser rangefinder to measure the distance of the indoor space and obtain the number of rooms and airflow parameters of each room; Step 2: Create a BIM model of the interior space and generate capillary scale based on the size information of each room; Step 3: Generate the main pipeline scale based on the generated capillary scale, obtain the routing start point and routing end point range, connect the routing start point and routing end point range through the routing model, and generate the main pipeline path; Step 4: Simulate the capillary scale through the model and calculate the capillary flow parameters; Step 5: Divide the main pipeline path into an output pipeline and a recovery pipeline according to the liquid flow direction in the main pipeline path, calculate the heat exchange ratio between the output pipeline and the recovery pipeline in combination with the capillary flow parameter, and generate a pipeline optimization signal based on the heat exchange ratio; Step 6: Manually intervene and adjust the existing wiring situation to generate a new trunk pipeline path.

2. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 1 is characterized in that: It also includes an indoor decoration wiring system that integrates BIM models and laser positioning, specifically including a parameter measurement module, a model operation module, a model output correction module, a wiring generation module, and a wiring verification module; The parameter measurement module obtains the measurement results through the laser rangefinder and obtains the number of rooms at the same time, calculates the volume of each room based on the measurement results, and analyzes the volume, floor height and room aspect ratio to obtain airflow parameters; The model operation module obtains the measurement results of the parameter measurement module, creates a BIM model of the indoor space, and generates a capillary scale according to the BIM model of the indoor space, wherein the capillary scale includes a total length of the capillary and an overall size of the capillary; After obtaining the capillary scale, the model operation module generates capillary flow parameters in combination with the airflow parameters. The capillary flow parameters include capillary liquid flow rate, capillary spacing and capillary diameter. The wiring generation module obtains a preset wiring starting point, obtains the capillary scale through the model operation module, extracts the wiring end point range according to the capillary scale, and generates the main pipeline path through the algorithm; The wiring verification module obtains capillary flow parameters through the model operation module, generates trunk pipeline flow parameters based on the capillary flow parameters, obtains the trunk pipeline path through the wiring generation module, and performs heat interaction analysis based on the trunk pipeline path and the trunk pipeline flow parameters to generate a pipeline optimization signal or a pipeline normal signal; The model output correction module obtains the pipeline optimization signal through the wiring verification module and generates a wiring optimization reminder.

3. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: The parameter measurement module obtains the number of rooms by manual input, and classifies the measured floor height, room length and width by manual input. The parameter measurement module automatically calculates the floor height, room length and width to obtain the room volume. The parameter measurement module obtains the airflow parameters by: The parameter measurement module calculates the floor height, volume, room length, and room width using a formula, and obtains airflow parameters based on the calculation results. The airflow parameters represent the difficulty of the capillary tube in controlling the room temperature, and the airflow parameters are inversely proportional to the difficulty of controlling the room temperature.

4. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: When generating the capillary scale, the model operation module obtains the room length and room width, and simultaneously obtains a preset redundancy value, and obtains the capillary group length and capillary group width by subtracting the redundancy value from the room length and the room width, wherein the capillary group length and capillary group width are recorded as the overall capillary size; The model operation module obtains the room volume and combines it with the overall size of the capillaries, and generates the total length of the capillaries through formula analysis based on the room volume and the overall size of the capillaries.

5. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: The method for generating capillary flow parameters by the model operation module is: The model operation module obtains the total length of the capillary, and obtains the capillary heat dissipation characteristic value based on the total length of the capillary and the preset temperature difference. The capillary heat dissipation characteristic value and the airflow parameter are calculated using a formula to obtain the capillary heat dissipation difference. At the same time, the model operation module obtains the preset basic flow parameter, and calculates the capillary heat dissipation difference and the basic flow parameter to obtain the capillary flow parameter.

6. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: The method for the wiring generation module to obtain the wiring end point range is: The wiring generation module obtains the connection direction of the room through the indoor space BIM model, where the connection direction is the side where the room door connects to other spaces. The wiring generation module uses the side length corresponding to the overall size of the capillary in the connection direction as the wiring end point range; The wiring generation module connects the wiring starting point with the wiring end point range of each room through a path generation algorithm to obtain a main pipeline path, wherein the area where the liquid flows from the wiring starting point to the wiring end point range is recorded as the output pipeline, and the area where the liquid flows from the wiring end point range to the wiring starting point is recorded as the recovery pipeline.

7. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: After obtaining the wiring end point range, the wiring generation module sets the connection points of the wiring end point range with the recovery pipeline and the output pipeline at both ends of the wiring end point range respectively.

8. The indoor decoration wiring method integrating BIM model and laser positioning according to claim 2 is characterized in that: The wiring verification module calculates the capillary liquid flow rate and the capillary diameter in the capillary flow parameters of each room to obtain the capillary liquid flow, and sums them up. The main pipeline flow parameter is obtained by multiplying it by a set coefficient greater than 1. The wiring verification module calculates the overlapping area of ​​the output pipeline and the recovery pipeline through a thermodynamic model to obtain the heat loss coefficient, and judges the heat loss coefficient with the set threshold. If the heat loss coefficient is greater than the set threshold, a pipeline optimization signal is obtained. If the heat loss coefficient is not greater than the set threshold, a pipeline normal signal is obtained.

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