Portable engineering measurement equipment for construction

Abstract

The utility model provides portable engineering surveying equipment for construction, which comprises a bar code leveling rod and a digital level gauge, the digital level gauge comprises a shell, and an objective lens, a focusing lens, a compensator, a reticle and an eyepiece which are arranged in the shell, and a catadioptric prism is arranged between the compensator and the reticle. The photoelectric sensor is connected to a data processing unit through an A / D converter, and the data processing unit transmits data to a terminal; the system further comprises an illumination intensity sensor and an illumination compensation unit. The data processing unit is used for controlling the image sensor to obtain the image of the bar code leveling rod in the view field, the height and the distance are obtained according to the obtained image and the coding scheme of the leveling rod, the measurement result is completed by a machine, the speed is high, the result is stable, the structure is simple, the equipment is small, and carrying is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering measurement, in particular to a portable engineering measurement device for construction. Background Art

[0002] A level is an instrument that establishes a horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the principle of leveling. According to the structure, it is divided into micro-tilt level, automatic leveling level, laser level and digital level (also known as electronic level). According to the accuracy, it is divided into precision level and ordinary level. Digital levels are gradually used in various high-precision industrial measurements. However, the existing digital levels have low accuracy, a single device structure, cannot meet the diversified measurement environment requirements and standards, and have a low degree of automation. Therefore, it is necessary to invent a portable construction engineering measurement device to make up for the shortcomings of the existing digital levels. Summary of the invention

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes a portable construction engineering measurement device to facilitate use and improve measurement accuracy and automation.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A portable construction engineering measurement device, comprising a barcode level and a digital level, wherein the digital level comprises a housing, and an objective lens, a focusing lens, a compensator, a graticule, and an eyepiece arranged in the housing, wherein a folding prism is arranged between the compensator and the graticule, so that the telescope of the barcode level is imaged onto a photoelectric sensor, the photoelectric sensor is connected to a data processing unit via an A / D converter, and the data processing unit transmits data to a terminal;

[0006] A filter circuit is also provided between the photoelectric sensor and the A / D converter;

[0007] The data processing unit includes a microprocessor, an interface unit, a wireless transmission unit, a comparator, an alarm, a display, and a memory, and the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory are all electrically connected to the microprocessor;

[0008] The outer shell is also provided with a light intensity sensor and a light compensation unit, the light intensity sensor is connected to the microprocessor through an A / D converter and is used to fill in the light when the light intensity is insufficient, and the light compensation unit is electrically connected to the microprocessor;

[0009] The power supply unit is used to supply power to the device.

[0010] Furthermore, the photoelectric sensor includes a CMOS image sensor.

[0011] Furthermore, the filtering circuit includes an RC low-pass filtering circuit.

[0012] Furthermore, the power supply unit is connected to the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory through a first power conversion module; the power supply unit provides a second power conversion module to connect the photoelectric sensor, the light intensity sensor, and the microprocessor.

[0013] Furthermore, a light shield is provided on the housing of the digital level.

[0014] Furthermore, the terminal includes a host computer, a smart phone, and a server.

[0015] Furthermore, the microprocessor is a single chip microcomputer.

[0016] Furthermore, the first power conversion module adopts an LDO voltage regulator chip of model TPS7250.

[0017] Furthermore, the second power conversion module adopts an LDO voltage regulator chip of model TPS7133.

[0018] Compared with the prior art, the portable construction engineering measurement equipment described in the utility model has the following advantages:

[0019] The utility model uses a data processing unit to control an image sensor to obtain an image of a barcode leveling ruler in a field of view, obtains height and distance according to the obtained image and the coding scheme of the leveling ruler, and the measurement result is completed by the machine, with fast speed, stable result, simple structure, small equipment, and convenient carrying;

[0020] The utility model uses a light intensity sensor to collect the light intensity of the measurement environment. If it is not within the set light intensity range, an alarm will be issued and the corresponding light supplement unit or light shield will be controlled to work, so as to avoid the light intensity affecting the accuracy of the measurement.

[0021] The utility model also realizes stable output of power supply by setting a power conversion module to avoid measurement errors;

[0022] The utility model also transmits the data to the terminal in a wireless manner, so that the staff can check and process it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a portable construction engineering measurement device of the utility model;

[0025] Figure 2 This is a schematic diagram of the principle of a portable construction engineering measurement device of the utility model;

[0026] Figure 3 A circuit diagram of the filter circuit of the utility model;

[0027] Figure 4 is a circuit diagram of the first power conversion module of the utility model;

[0028] Figure 5 It is a circuit diagram of the second power conversion module of the utility model.

[0029] Description of Reference Numerals

[0030] 1- barcode level; 2- objective lens; 3- focusing lens; 4- compensator; 5- graticule; 6- eyepiece;

[0031] 7-fold reflective prism; 8-photoelectric sensor; 9-data processing unit; 10-terminal. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] like Figure 1-2 As shown, the utility model provides a portable engineering measurement equipment for construction, including a barcode level ruler 1 and a digital level, the digital level including a shell, and an objective lens 2, a focusing lens 3, a compensator 4, a graticule 5, and an eyepiece 6 arranged in the shell, a folding prism 7 is arranged between the compensator 4 and the graticule 5, so that the telescope image of the barcode level ruler 1 is imaged on a photoelectric sensor 8, the photoelectric sensor 8 is connected to a data processing unit 9 via an A / D converter, and the data processing unit 9 transmits data to a terminal 10; a filtering circuit is also arranged between the photoelectric sensor 8 and the A / D converter, the data processing unit 9 includes a microprocessor, an interface unit, a wireless transmission unit, a comparator, an alarm, a display, and a memory, the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory are all electrically connected to the microprocessor, and also include a light intensity sensor and a light compensation unit arranged outside the shell, the light intensity sensor is connected to the microprocessor through the A / D converter, and is used for supplementary light when the light intensity is insufficient, the light compensation unit is electrically connected to the microprocessor, and the power supply unit is used to power the device.

[0037] Specifically, the photoelectric sensor includes a CMOS image sensor.

[0038] Specifically, the filtering circuit includes an RC low-pass filtering circuit, such as Figure 3 As shown, the RC low-pass filter circuit has a simple structure, uses no active devices, and has low power consumption.

[0039] Specifically, the power supply unit is connected to the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory through a first power conversion module; the power supply unit provides a second power conversion module to connect the photoelectric sensor, the light intensity sensor, and the microprocessor.

[0040] For precision electronic instruments, the requirement for the power supply voltage to remain stable is higher. If the power supply fluctuates greatly, it is easy to cause deviations in the measurement results, which in turn causes the entire system to not work properly. In order to achieve stable power supply, the utility model adopts the LDO voltage regulator chip model TPS7250 to power the interface unit, wireless transmission unit, comparator, alarm, display, and memory of the equipment. Figure 4 As shown in FIG. 1 , a TPS7133 LDO voltage regulator chip is used to power the photoelectric sensor, light intensity sensor and microprocessor. Figure 5 shown.

[0041] Specifically, a light shielding plate is also provided on the housing of the digital level.

[0042] Specifically, the terminal includes a host computer, a smart phone, and a server.

[0043] Specifically, the microprocessor is a single chip microcomputer.

[0044] When using the device of the utility model for measurement, first install the device on a tripod, level the device, aim at the level ruler and focus clearly, and then control the photoelectric sensor 8 by the data processing unit 9 to obtain the image of the level ruler in the field of view, and obtain the height and distance according to the obtained image, the coding scheme of the level ruler and the corresponding processing method. The measurement is completed automatically by the machine, so the result is stable and the speed is fast. After the signal comes out of the photoelectric sensor 8, it passes through the RC low-pass filter, is sampled into a digital signal by the A / D, sent to the microprocessor for data processing, and transmitted to the host computer, smart phone, and server through the wireless transmission unit or interface unit for timely viewing and processing by the staff.

[0045] Since the external light intensity will affect the results of data collection, the utility model uses a light intensity sensor to collect the light intensity of the measurement environment and sends it to the microprocessor through an A / D converter. The microprocessor compares the received data with the preset light intensity value through a comparator, and returns the comparison result to the microprocessor. When the received light intensity data is greater than the preset value, an alarm is used to remind the staff to open the light block for light blocking. In the utility model, the light block and its connection are both existing products; when the received light intensity data is less than the preset value, such as on a cloudy day or in a dark environment, an alarm is used to remind, and the light compensation unit is controlled to perform light compensation, thereby reducing the impact of light intensity on measurement accuracy.

[0046] All matters not mentioned above are prior art.

[0047] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable construction engineering measurement device, comprising a barcode level ruler (1) and a digital level, wherein the digital level comprises a housing, and an objective lens (2), a focusing lens (3), a compensator (4), a graticule (5), and an eyepiece (6) arranged in the housing, characterized in that: A folding and reflecting prism (17) is provided between the compensator (4) and the graticule (5), so that the telescope of the barcode level ruler (1) is imaged onto the photoelectric sensor (8), the photoelectric sensor (8) is connected to the data processing unit (9) via an A / D converter, and the data processing unit (9) transmits the data to the terminal (10); A filter circuit is also provided between the photoelectric sensor (8) and the A / D converter; The data processing unit includes a microprocessor, an interface unit, a wireless transmission unit, a comparator, an alarm, a display, and a memory, and the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory are all electrically connected to the microprocessor; The outer shell is also provided with a light intensity sensor and a light compensation unit, the light intensity sensor is connected to the microprocessor through an A / D converter and is used to fill in the light when the light intensity is insufficient, and the light compensation unit is electrically connected to the microprocessor; A power supply unit is also included for supplying power to the device.

2. A portable construction engineering measurement device according to claim 1, characterized in that: The photoelectric sensor (8) comprises a CMOS image sensor.

3. A portable construction engineering measurement device according to claim 1, characterized in that: The filter circuit includes an RC low-pass filter circuit.

4. A portable construction engineering measurement device according to claim 1, characterized in that: The power supply unit is connected to the interface unit, the wireless transmission unit, the comparator, the alarm, the display, and the memory through the first power conversion module; the power supply unit is connected to the photoelectric sensor, the light intensity sensor, and the microprocessor through the second power conversion module.

5. The portable construction engineering measurement equipment according to claim 1, characterized in that: A light blocking plate is also provided on the housing of the digital level.

6. The portable construction engineering measurement equipment according to claim 1, characterized in that: The terminal (10) comprises a host computer, a smart phone, and a server.

7. The portable construction engineering measurement equipment according to claim 1, characterized in that: The microprocessor is a single chip microcomputer.

8. The portable construction engineering measurement equipment according to claim 4, characterized in that: The first power conversion module uses an LDO voltage regulator chip of model TPS7250.

9. The portable construction engineering measurement equipment according to claim 4, characterized in that: The second power conversion module uses an LDO voltage regulator chip of model TPS7133.

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