Light current wiring measurement device for fire alarm equipment

Abstract

To provide a low-voltage wiring measuring device capable of accurately measuring in a short time the distance of low-voltage wiring that supplies power to a fire alarm system shown on a design drawing. [Solution] A low-voltage wiring measurement device 10 includes a design drawing data storage unit 11, a data reading unit 12 that reads design drawing data in a state that allows for subsequent analysis, a low-voltage wiring extraction unit 21 that extracts low-voltage wiring that supplies power to a fire alarm system displayed in the design drawing data read via the data reading unit, a dimension measurement unit 23 that measures the dimensions of the extracted low-voltage wiring, and a distance calculation unit 25 that calculates the actual distance of the low-voltage wiring based on the measurements of the dimension measurement unit and the scale of the design drawing data. The low-voltage wiring extraction unit and the dimension measurement unit have AI functions. The low-voltage wiring of fire alarm systems (sensors, receivers, sound devices, etc.) can be extracted via the AI-based low-voltage wiring extraction unit, and the actual distance of the low-voltage wiring can be measured and processed quickly and with high precision.

Description

[Technical Field]

[0001] This invention relates to a technique for measuring the distance of low-voltage wiring that supplies power to fire alarm equipment shown on a building's blueprints. [Background technology]

[0002] Buildings shall be equipped with the required number of fire alarm systems in accordance with the Fire Service Act.

[0003] Conventionally, the locations of fire alarm systems are indicated on building blueprints, but the distance of the low-voltage wiring that supplies power to the fire alarm systems is measured manually.

[0004] Specifically, as shown in Figure 5, a handwritten design drawing 1 is read using a scanner device 2, and a customized dedicated application 3 is used to extract the low-voltage wiring that supplies power to the fire alarm system.Then, the low-voltage wiring distance of the fire alarm system is measured manually 4, and the measurement results are stored in a recording input unit 6.

[0005] The design drawing data read by the scanner device 2 may be converted into appropriate data such as PDF5 and saved, and then sent to the dedicated application 3, where the low-voltage wiring may be extracted by the dedicated application 3.

[0006] Conventionally, the following Patent Document 1 has been known as a technique for measuring the distance of low-voltage wiring that supplies power to a fire alarm system of an article.

[0007] This involves constructing a three-dimensional model based on basic data, and using a design subsystem to carry out planning and design based on the three-dimensional model. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2024-110390 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0009] Problems with conventional techniques for measuring the distance of low-voltage wiring (hereinafter referred to as low-voltage wiring) that supplies power to automatic fire alarm systems (hereinafter simply referred to as fire alarm systems) include the time loss caused by manual work and the inaccuracy of the measurement results.

[0010] Even if the distance of low-voltage wiring is measured manually, the number of fire alarm devices shown on the building blueprints is enormous, and measuring the low-voltage wiring extracted using a dedicated app takes time if accuracy is required.Fire alarm devices other than detectors include receivers that detect abnormalities when detectors detect them, and acoustic devices that notify of abnormalities, but there are cases where these low-voltage wiring sections are overlooked or forgotten to be measured.

[0011] Furthermore, there are also cases where the blueprints are misread when scanned using a scanner, such as when the blueprints are unclear. In such cases, even with analysis software, it is not possible to accurately extract the low-voltage wiring of the fire alarm system.

[0012] Therefore, the purpose of this invention is to measure the distance of the low-voltage wiring that supplies power to the fire alarm system shown on the design drawings as accurately and quickly as possible, so that the measurement can be used for subsequent processing. [Means for solving the problem]

[0013] In order to achieve the above-mentioned object, the measurement device for low-voltage wiring that supplies power to a fire alarm system according to the present invention comprises a blueprint data storage unit that stores architectural blueprint data, a data reading unit that reads the blueprint data stored in the blueprint data storage unit in a state that allows for subsequent analysis, a low-voltage wiring extraction unit that extracts the low-voltage wiring that supplies power to the fire alarm system displayed in the blueprint data read via the data reading unit, a dimension measurement unit that measures the dimensions of the low-voltage wiring extracted via the low-voltage wiring extraction unit, and a distance calculation unit that calculates the actual distance of the low-voltage wiring based on the measurement values ​​of the dimension measurement unit and the scale of the blueprint data, and the low-voltage wiring extraction unit and the dimension measurement unit are configured to have AI functions (Claim 1).

[0014] According to claim 1, based on the architectural design drawings, the low-voltage wiring of the fire alarm equipment (sensors, receivers, sound devices, etc.) is extracted via the low-voltage wiring extraction unit (using AI), and the actual distance of the low-voltage wiring is calculated via the dimension measurement unit (using AI) and the distance calculation unit, so that the actual distance of the low-voltage wiring can be measured and processed with high accuracy and speed.

[0015] The actual distance is the actual length of the low-voltage wiring. The standard for expressing length is the International System of Units, specifically the metric system. In blueprints and on-site construction of Japanese and wooden houses, units such as tsubo (approximately 3.3058 square meters), shaku, and sun are sometimes used. These units are loosely used as a convention for expressing length, and there may be unit indications / notations that cannot be used in building transactions, etc.

[0016] The low-voltage wiring extraction unit may be composed of a symbol extraction unit that extracts the symbol sign of the fire alarm system displayed in the design drawing data read by the data reading unit, and a straight-line extraction unit that extracts the straight-line low-voltage wiring that supplies power to the fire alarm system extracted by the symbol extraction unit (Claim 2).

[0017] When the low-voltage wiring cannot be extracted directly, for example when the low-voltage wiring is not color-coded, the symbol of the fire alarm equipment can be extracted via the symbol extraction unit, and the straight low-voltage wiring connecting the fire alarm equipment can be extracted via the straight line extraction unit.

[0018] There may be a case where an estimate calculation unit is provided that calculates an estimate for the low-voltage wiring displayed on the architectural design drawing via a command instruction unit that accepts input of the unit price of the parts, based on a distance calculation unit that calculates the actual distance of the low-voltage wiring (Claim 3).

[0019] If the actual distance of the low-voltage wiring can be measured, the command instruction unit can receive the unit price of the parts, and an estimate of the low-voltage wiring (partial actual distance / total distance for the entire floor / total distance for the entire building, etc.) can be calculated via the estimate calculation unit. There are several types of low-voltage wiring used in fire alarm systems. According to claim 3, the required estimate can be calculated quickly and with high accuracy. [Effects of the Invention]

[0020] The low-voltage wiring measuring device for fire alarm equipment according to the present invention can measure the distance of low-voltage wiring as accurately as possible in a short time, and the result can be used for subsequent processing. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a block diagram showing a measurement device for low-voltage wiring of a fire alarm system according to a first embodiment. FIG. [Figure 2] FIG. 10 is a block diagram showing a measurement device for low-voltage wiring of a fire alarm system according to a second embodiment. [Figure 3] FIG. 10 is a block diagram showing a low-voltage wiring measurement device for a fire alarm system according to a third embodiment. [Figure 4] FIG. 10 is a diagram illustrating a straight low-voltage wiring that connects fire alarm systems. [Figure 5] FIG. 10 is a block diagram showing an example of conventional dimension measurement of low-voltage wiring. DETAILED DESCRIPTION OF THE INVENTION

[0022] FIG. 1 shows an example of a measuring device 10 for low-voltage wiring used in a fire alarm system according to the first embodiment.

[0023] This low-voltage wiring measuring device 10 can be configured by analyzing and interpreting the blueprints of a building via a PC terminal or the like.

[0024] First, the overall configuration will be described.

[0025] Reference numeral 11 denotes a design drawing data storage unit that stores drawing data of architectural design drawings, and 12 denotes a data reading unit that reads the drawing data stored in the design drawing data storage unit 11 in a state that allows subsequent analysis.

[0026] Reference numeral 20 denotes a component (processing unit) equipped with AI (Artificial Intelligence) functions, 21 denotes a low-voltage wiring extraction unit that extracts low-voltage wiring that supplies power to low-voltage equipment displayed in the drawing data read via the data reading unit 12, for example, a fire alarm system, and 23 denotes a dimension measurement unit that measures the dimensions of the low-voltage wiring extracted via the low-voltage wiring extraction unit 21.

[0027] Reference numeral 25 denotes a distance calculation unit that calculates the actual distance of the low-voltage wiring based on the measurement values ​​(dimensions) of the dimension measurement unit 23 and the scale of the design drawing data.

[0028] The low-voltage wiring extraction unit 21 and the dimension measurement unit 23 are configured to have AI (for example, recognition AI) functions.

[0029] Reference numeral 14 denotes a result display unit that displays the calculation results of the distance calculation unit 25. The distance calculation unit 25 preferably has a storage function for storing the calculation results in memory. A memory unit (not shown) for storing the calculation results of the distance calculation unit 25 may be provided separately. This is to facilitate subsequent searches.

[0030] Reference numeral 16 denotes a peripheral device section such as a PC terminal device, 17 denotes a command instruction section (keyboard device / mouse device / touch panel etc.), and 18 denotes a monitor device.

[0031] The configuration of each part will be explained below.

[0032] The design drawing data storage unit 11 for storing the drawing data of architectural design drawings saves the drawing data in an appropriate file format.

[0033] The design drawing data read via a scanner device (not shown) may be saved in an appropriate file format (e.g., JPG, GIF, etc.), or design drawing data created in an appropriate file format (e.g., PDF, etc.) may be imported and saved.

[0034] When importing blueprint data, for example, you can read it via the Internet or via external storage media such as USB memory or SD card. If the blueprint was created in-house, you can import the blueprint data using the in-house LAN (whether wired or wireless). You can also use blueprint data shared via the cloud.

[0035] The design drawing data should preferably be a two-dimensional diagram (e.g., a floor plan) showing the location of low-voltage equipment, such as fire alarm equipment. In the case of a multi-story building, it is desirable to use a two-dimensional diagram (e.g., a floor plan) for each floor. When low-voltage wiring is installed above the ceiling, the wiring should be displayed in an appropriate format, such as a wavy line.

[0036] The storage of the drawing data may be temporary if it is only for subsequent processing. However, since the design drawing data is usually used repeatedly, it is desirable that the design drawing data storage unit 11 use a recording medium (such as an HDD, SSD, or cloud) that can store a large amount of design drawing data for a long period of time.

[0037] The data reading unit 12 reads the drawing data stored in the design drawing data storage unit 11 in a state that allows subsequent analysis. For example, when the drawing data stored in the design drawing data storage unit 11 is captured via a scanner device (not shown), the data reading unit 12 converts the file format into a storage state that allows analysis, etc. in the subsequent processing unit 20 that has an AI function.

[0038] If the processing unit 20 requires a dedicated / proprietary file format, the file format is converted to that format. Also, if subsequent processing is possible in a widely used file format such as PDF, BMP, JPEG, PNG, or TIFF, there is no need to convert the file format. In that case, for example, the file format of the drawing data stored in the design drawing data storage unit 11 may be used as is.

[0039] The data reading unit 12 does not necessarily need to be configured to have an AI function, as long as the processing unit 20 at the subsequent stage is capable of performing analysis using the AI ​​function.

[0040] The low-voltage wiring extraction unit 21, which extracts low-voltage devices displayed in the drawing data read by the data reading unit 12, such as low-voltage wiring that supplies power to a fire alarm system, is part of the processing unit 20 equipped with AI functions. Below, we will explain how to measure the distance of the low-voltage wiring that supplies power to a fire alarm system.

[0041] Light-voltage wiring on architectural blueprints can be represented, for example, by black straight lines, color-coded displays, thick lines, hatched displays, etc. If color-coded displays, thick lines, hatched displays, etc. are used, the light-voltage wiring can be directly extracted by the light-voltage wiring extraction unit 21 equipped with an AI function (recognition AI). This is because the light-voltage wiring can be clearly distinguished from the straight lines that indicate the walls of the building.

[0042] The AI ​​function of the processing unit 20 may be customized or developed, but paid or free AI tools (AI products) can also be used. Examples include LINE WORKS OCR (LINE WORKS Corporation), MeerGuard Enterprise (OkojoAI Inc.), Asteria AIoT Suite (Asteria Corporation), and StellaController (Phoxter Inc.). Any AI tool that can be applied to image recognition / image processing can be used.

[0043] The function to extract low-voltage wiring for fire alarm equipment is a relatively easy process compared to generation processing, etc. Currently, high-precision processing can be performed using many well-known / publicly available free AI tools as a base.

[0044] A dimension measuring unit 23 that measures the dimensions of the low-voltage wiring extracted by the low-voltage wiring extraction unit 21 is a part of the processing unit 20 that has an AI function.

[0045] There are various types of low-voltage wiring, such as two-core construction, in which two wires are bundled to connect the detector and then another two-wire bundle, L (positive wire) and C (negative wire), is used to return from the detector to the general panel, and four-core construction, in which two wires are used for L and two for C, for a total of four wires. On design drawings, low-voltage wiring may be shown in detail, but in order to measure the dimensions of the low-voltage wiring, it is preferable to use drawing data that shows the various low-voltage wiring related to the fire alarm system as a single line.

[0046] The low-voltage wiring connects the sensor (not shown) in a straight line / at a right angle, so by using a PC or the like, a line (wiring) that is indicated as four cores on the design drawing can be easily corrected to a single line.

[0047] Low-voltage wiring to sensors installed on or near the ceiling may require bypassing (climbing over) beams, resulting in extra distances that do not appear in planar design drawing data. Therefore, it is desirable for the dimension measurement unit 23 to adjust for these extra distances using a correction coefficient to convert the calculated dimension results into more accurate values. Taking into account beams, columns, etc. that cause the extra distances, the correction coefficient is set to, for example, 1.1, 1.2, 1.3, etc., and more accurate dimensions can be obtained by multiplying the dimension results measured by the dimension measurement unit 23 by the coefficient.

[0048] Distance calculation unit 25, which calculates the actual distance of the low-voltage wiring based on the measurement values ​​(dimensions) of dimension measurement unit 23 and the scale of the design drawing data, can calculate the actual distance (real distance) by, for example, multiplication processing.

[0049] If the scale of an architectural blueprint is 1 / 100, a dimension of 1 cm corresponds to an actual distance of 1 m. This is true when the drawing data (blueprint) shown by the blueprint data storage unit 11 is on a scale of 1 / 100.

[0050] The units of length used by the distance calculation unit 25 are metric units such as m, cm, mm, etc. Conveniently used units of length such as shaku and sun can also be used.

[0051] When the design drawing data shown by the design drawing data storage unit 11 is displayed on the monitor smaller than the actual design drawing, the low-voltage wiring extraction unit 21 enlarges and converts the data based on the reduction rate of the design drawing data used, and calculates the actual distance via the distance calculation unit 25.

[0052] The result display unit 14 sends the processing results of the distance calculation unit 25 to a subsequent stage. Preferably, the result display unit 14 has a memory function and stores the architectural blueprint, for example, in the case of a building, the calculated low-voltage wiring distance of the fire alarm system for each floor, from the first floor to the nth floor. More preferably, the building name and floor number can be displayed to facilitate subsequent searches. The building name, floor number, and low-voltage wiring distance of the fire alarm system may be stored in a table format, and the appropriate saved page may be sent to a subsequent stage.

[0053] The result display unit 14 outputs the measured dimensions / actual distance / total distance etc. of the low-voltage wiring in an appropriate format to the downstream monitor device 18. The display format of the monitor device 18 can be specified / instructed, for example, via the command instruction unit 17 (keyboard device, mouse device, touch panel etc.).

[0054] According to this configuration, based on the dimension measurement unit 23 and the distance calculation unit 25, the actual distance, total distance, etc. of the low-voltage wiring shown in the design drawing data can be measured accurately and quickly, and the distance can be used for subsequent processing.

[0055] There are various types of fire alarm detectors, including smoke detectors, heat detectors, flame detectors, etc. Even if different symbols are used to indicate the type of detector on the blueprint, by extracting the low-voltage wiring that supplies power, it is possible to calculate the actual distance and total distance of the low-voltage wiring with high accuracy and in a short time, regardless of the type of detector.

[0056] The distance of the low-voltage wiring shown on the architectural blueprint can be estimated using application software that does not use AI functions, such as Illustrator (registered trademark). However, if the dimension measurement unit 23 with AI functions is used, more precise dimension measurements can be performed, and the calculation results via the distance calculation unit 25 will be the actual distance, total distance, etc. without any error.

[0057] FIG. 2 shows a second embodiment of the low-voltage wiring measurement device 10 shown in FIG.

[0058] This second embodiment shows another example of the configuration of the low-voltage wiring extraction unit 21.

[0059] The low-voltage wiring extraction unit 21 according to the second embodiment is composed of a symbol extraction unit 21-2 that extracts the symbol sign of the fire alarm system displayed in the design drawing data read via the data reading unit 12, and a straight-line extraction unit 21-3 that extracts the straight-line low-voltage wiring that supplies power to the fire alarm system extracted by the symbol extraction unit 21-2.

[0060] The detectors (not shown) of the fire alarm system use what is called a forwarding wiring (series wiring). This wiring does not branch along the way or run in parallel. The reason the power supply line to the detector is a forwarding wiring is to detect a break in the detector (detection of fire, smoke, etc.).

[0061] In architectural blueprints, for example, as shown in Figure 4, low-voltage wiring 21-6 that supplies power to multiple detectors 21-5 may be shown wired in series. 21-7 is a receiver that detects abnormalities (disconnections; short circuits) in the detectors 21-5. The fire alarm equipment on the blueprints may also include a sub-receiver (not shown) and an acoustic device (emergency bell; not shown).

[0062] By extracting the symbol sign of the fire alarm system via the symbol extraction unit 21-2 and extracting the straight low-voltage wiring that supplies power to the fire alarm system via the straight-line extraction unit 21-3, the low-voltage wiring extraction unit 21 can extract the low-voltage wiring with high accuracy and in a short time even if the low-voltage wiring is not displayed in a color-coded or bold line.

[0063] The low-voltage wiring that supplies power to the fire alarm equipment is displayed as a straight line / right angle on the architectural blueprint, so the extraction process of the wiring by the low-voltage wiring extraction unit 21 is easy and highly accurate, and the dimension measurement of the low-voltage wiring (21-6) by the dimension measurement unit 23 is also precise.

[0064] FIG. 3 shows a third embodiment of the low-voltage wiring measurement device 10 shown in FIG.

[0065] This third embodiment is provided with an estimate calculation unit 30 that calculates an estimate for low-voltage wiring for fire alarm equipment displayed on an architectural design drawing based on the actual distance of the low-voltage wiring calculated by the distance calculation unit 25, via a command instruction unit 17 (keyboard device / mouse device / ten-key device, etc.) that accepts input of component prices. Various estimates for low-voltage wiring can be made based on the actual distance of the low-voltage wiring, such as an estimate for a specific section on a specific floor, an estimate based on the total distance for the entire floor on a specific floor, or an estimate based on the total distance for the entire building.

[0066] Since the cost of installing low-voltage wiring varies depending on the installer, it is desirable that the estimate calculation unit 30 mainly estimates the cost of components for the low-voltage wiring. It is also possible to estimate the cost of installing low-voltage wiring via the estimate calculation unit 30.

[0067] The devices shown in Figures 1 to 3 can use Chat GPT (conversational AI) as the AI ​​function part. Because Chat GPT is also capable of deep learning, it has potential for use as a means of quickly and easily obtaining answers.

[0068] However, Chat GPT has disadvantages such as a tendency to utilize incorrect information and the risk of information leaks.

[0069] The low-voltage wiring extraction unit 21 of the present invention can extract the low-voltage wiring displayed in the design drawing data and measure the dimensions, actual distance, and total distance of the low-voltage wiring. However, there are many wiring sections of low-voltage wiring other than fire alarm equipment that are not shown in the design drawing data, such as extension cords and electrical cords for low-voltage equipment. The present invention can approximately accurately measure the dimensions of the low-voltage wiring to the fire alarm equipment displayed in the design drawing data and calculate the actual distance and total distance. [Explanation of symbols]

[0070] 10. Low-voltage wiring measurement device 11 Blueprint data storage section 12 Data reading unit 14 Result display area 16 Peripheral Equipment Section 17 Command instruction unit (keyboard device / mouse device / touch panel, etc.) 18 Monitor Device 20 Components with AI functions (processing section) 21 Light electrical wiring extraction part 21-2 Symbol Extraction Unit 21-3 Straight line extraction part 21-5 Sensor 21-6 Light electrical wiring 21-7 Receiver 23 Dimensional measurement section 25 Distance calculation unit 30 Estimate Calculation Department

Claims

1. a design drawing data storage unit for storing architectural design drawing data; a data reading unit that reads the design drawing data stored in the design drawing data storage unit in a state that allows subsequent analysis; a low-voltage wiring extraction unit that extracts low-voltage wiring that supplies power to the fire alarm equipment displayed in the design drawing data read by the data reading unit; a dimension measuring unit that measures the dimensions of the low-voltage wiring extracted by the low-voltage wiring extraction unit; a distance calculation unit that calculates an actual distance of the low-voltage wiring based on the measurement value of the dimension measurement unit and the scale of the design drawing data, A low-voltage wiring measurement device for fire alarm equipment, characterized in that the low-voltage wiring extraction unit and the dimension measurement unit are configured to have AI functions.

2. The weak current wiring extraction unit is a symbol extraction unit that extracts a symbol sign of the fire alarm system displayed in the design drawing data read by the data reading unit; 2. The low-voltage wiring measurement device for fire alarm systems according to claim 1, further comprising a straight-line extraction unit that extracts straight low-voltage wiring that supplies power to the fire alarm systems extracted by the symbol extraction unit.

3. Based on the distance calculation unit that calculates the actual distance of the low-voltage wiring, Through the command instruction section that accepts input of the part unit price, 3. The low-voltage wiring measuring device for fire alarm systems according to claim 1, further comprising an estimate calculation unit for calculating an estimate for low-voltage wiring displayed on a construction design drawing.

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