CN-115902917-B - Portable elevator well laser radar measuring device

CN115902917BCN 115902917 BCN115902917 BCN 115902917BCN-115902917-B

Abstract

The invention discloses a portable elevator hoistway laser radar measurement device which comprises a fixed frame, a guide wire wheel set, a driving and signal transmission assembly, a lifting wire wheel set, a lifting measurement assembly, a communication control device, a guiding lifting hammer assembly and a base, wherein the guide wire wheel set controls the lifting of the guiding lifting hammer assembly through a guide wire, the lifting wire wheel set controls the lifting of the lifting measurement assembly through a lifting wire, the lifting measurement assembly is used for measuring elevator hoistway data, the driving and signal transmission assembly is used for receiving command signals and controlling the running directions and speeds of the guide wire wheel set and the lifting wire wheel set, the communication control device is connected with a control end and used for sending command signals through wireless signals, and the communication control device is also used for receiving data measured by the lifting measurement assembly through wireless signals and transmitting the data to the control end to finally obtain the elevator hoistway data. The device provided by the invention adopts a portable assembly design, is integrated in storage, is convenient to carry, and can be quickly installed and used.

Inventors

CHEN XIAOCHANG
XIE HAIBO
YANG HUAYONG
GAO ZHENYU
SHEN HONGYAO

Assignees

浙江大学高端装备研究院

Dates

Publication Date: 20260512
Application Date: 20221202

Claims (6)

1. The portable elevator hoistway laser radar measurement device is characterized by comprising a fixed frame, a guide wire wheel set, a driving and signal transmission assembly, a lifting wire wheel set, a lifting measurement assembly, a communication control device, a guide hanging weight assembly and a base; The fixing frame is of a prismatic frame structure with a hollow inside, the guide wire wheel set, the driving and signal transmission assembly and the lifting wire wheel set are sequentially and fixedly connected in the fixing frame, the guide wire wheel set controls the lifting of the guide lifting hammer assembly through a guide wire, and the lifting wire wheel set controls the lifting of the lifting measuring assembly through a lifting wire; the guide lifting hammer assembly and the guide wire jointly form a lifting channel of the lifting measurement assembly, and the lifting measurement assembly is used for measuring elevator shaft data and converting the elevator shaft data into transmissible signals to be output; the base is fixedly connected to the bottom of the fixed frame and can be detached and used for restraining the components in the fixed frame from shaking; The device comprises a fixed frame, a driving and signal transmission assembly, a communication control device, a lifting measurement assembly, a control end and a control end, wherein the driving and signal transmission assembly is used for receiving command signals and controlling the running directions and speeds of the guide wire wheel group and the lifting wire wheel group; the lifting measurement assembly comprises a guide wire guide wheel, a lifting bracket, a laser radar, a second power supply, an inertial sensor, a communication module, a balancing weight and a laser ranging module; The lifting bracket is of a hollowed prism structure, the cross section of the lifting bracket is the same as that of the fixed frame, the laser radar is arranged in the lifting bracket and is used for measuring the data of an elevator shaft, the center of the upper surface of the lifting bracket is fixedly connected with the lifting wire, guide wire guide wheels are fixedly connected to the corresponding positions of the upper surface and the lower surface of the lifting bracket, the guide wires penetrate through the guide wire guide wheels to enable the lifting measurement assembly to run on a lifting channel formed by the guide wires, the second power supply, the inertial sensor, the communication module and the balancing weight are fixedly arranged on a bottom plate of the lifting bracket, the laser ranging module is fixedly arranged on the lower surface of the lifting bracket and is used for measuring the distance from the lifting bracket to the guiding lifting weight assembly, the second power supply is used for supplying power for the laser radar, the inertial sensor, the communication module and the laser ranging module, the inertial sensor is used for measuring the swing amplitude of the lifting measurement assembly, and the balancing weight is arranged on different positions of a bottom plate of the lifting bracket so that the center of gravity of the measurement assembly is located on the central axis; The communication module is used for collecting data measured by the laser radar, the inertial sensor and the laser ranging module, processing the data into transmissible signals, transmitting the transmissible signals to the communication control device through wireless signals, receiving command signals sent by the communication control device, and controlling the laser radar, the inertial sensor and the laser ranging module to start or end measurement; The guide line guide wheel consists of three rollers which are vertically arranged in a triangular manner, and the guide line sequentially bypasses the three rollers to increase the friction force between the guide line and the guide line guide wheel; The guiding hammer assembly comprises a guide wire wheel, a pendulum and a hammer shell, wherein the hammer shell is of a hollow structure with the bottom surface circular diameter larger than the bottom surface size of the fixed frame, the pendulum is fixedly connected to the center of the upper wall of an inner cavity of the hammer shell, the pendulum is soaked in non-corrosive liquid with high viscosity and can swing freely, the guide wire wheel is fixedly connected to the upper surface of the hammer shell, and the guide wires penetrate through the guide wire wheel and are fixed on the hammer shell, so that the guide wires are parallel to each other and are always in a vertical state.
2. The portable elevator hoistway laser radar measurement device of claim 1, wherein the guide wire wheel set comprises a guide wire collecting gear, a driving gear, a guide wire and a collecting wire wheel, the driving and signal transmission assembly comprises a guide wire speed reducing motor, a first power supply, a lifting wire speed reducing motor and a control module, and the lifting wire wheel set comprises a lifting wire collecting gear and a lifting wire; The collecting wire wheel and the guide wire collecting gear are coaxially arranged and synchronously rotate, the guide wire collecting gear divides the collecting wire wheel into a plurality of sections, each section of collecting wire wheel is respectively wound with a guide wire, the guide wires are led out through a fixed pulley and are changed into vertical directions to be placed downwards, and the guide wires penetrate through outer edge through holes of the lifting measuring assembly and are fixedly connected with the guiding hanging hammer assembly; the guide wire collecting gears are respectively meshed with the driving gears, and the driving gears and the output end of the guide wire reducing motor are coaxially arranged and synchronously rotate; The lifting wire collecting gear and the hub thereof are coaxially arranged and synchronously rotate, the lifting wire collecting gear is respectively fixed on the upper end face and the lower end face of the hub, a lifting wire is wound on the hub, and the lifting wire vertically descends from the center of the bottom surface of the lifting wire collecting gear positioned on the lower end face of the hub through a pulley block and is fixedly connected with the center of the top surface of the lifting measuring assembly; The guide wire speed reducing motor, the power supply I, the lifting wire speed reducing motor and the control module are fixed on the same plane, the power supply I is used for supplying power to the guide wire speed reducing motor, the lifting wire speed reducing motor and the control module, and the control module is used for receiving instructions sent by the communication control device and controlling the rotation direction and speed of the guide wire speed reducing motor or the lifting wire speed reducing motor.
3. The laser radar measuring device for the elevator hoistway according to claim 2, wherein a plurality of guide wire collecting gears are provided, one guide wire is independently wound on each collecting reel between two adjacent guide wire collecting gears, a pulley is fixed on the guide wire corresponding to the height and used for guiding out the guide wire and changing the direction of the guide wire into the vertical direction, and the guide wire is fixedly connected with the guide lifting hammer assembly after passing through the lifting measuring assembly.
4. The portable elevator hoistway lidar measurement device of claim 1, wherein a stopper is fixedly attached to the fixed frame, and the stopper is configured to define an axially highest position of the lifting measurement assembly.
5. The portable hoistway lidar measurement device of claim 1, further comprising a fixed joint fixedly attached to an upper surface of the fixed frame for fixedly attaching the portable hoistway lidar measurement device to an upper end cap at a top end of the hoistway.
6. The portable elevator hoistway laser radar measurement device of claim 1, wherein the base includes a fixed base and a circular bottom cover, the fixed base is fixedly connected to the bottom of the fixed frame, the circular bottom cover is a hollow cylinder without a cover, the inner side of which is provided with threads, and the fixed base and the circular bottom cover are fixed through threaded fit.

Description

Portable elevator well laser radar measuring device Technical Field The invention relates to the technical field of three-dimensional measurement, in particular to a portable elevator hoistway laser radar measurement device. Background In recent years, with the gradual progress of productivity in modern society, the civil construction industry is also rapidly developing, and a remarkable feature is the gradual increase in floor height and the widespread use of elevators. This greatly facilitates people's travel life. The design and installation of the elevator are independent of the hoistway size measurement. An elevator hoistway requires measurement of many sets of data including hoistway width, hoistway depth, floor height, roof height, and floor depth, among others, many of which are not lacking in data that needs to be measured in high altitudes. Therefore, the elevator shaft building measurement is always a difficult problem in the mapping industry, so far, most design companies adopt workers to measure the elevator shaft layer by using single-point distance measuring instruments (such as steel rules, level gauges and the like), but the elevator shaft measurement is low in precision, low in working efficiency, extremely stubborn and inferior in working environment, and the difficulty and risk of the elevator shaft measurement are obviously improved along with the increase of the floor number. The accuracy of the measurement of the construction size of the elevator shaft is particularly critical to the design and installation of the elevator, and finding a safe and efficient detection method is a critical point for solving the problems. Three-dimensional reconstruction relies on modern computer technology to acquire actual data of the object to be detected. The most fundamental and fundamental foothold for achieving three-dimensional reconstruction is on the splice in units of point clouds. Three-dimensional reconstruction can be achieved through various sensors, and laser and camera are often adopted as multimedia sensors for three-dimensional scene reconstruction at present. Due to cost limitations, conventional scene reconstruction in the past mostly adopts photos to identify position distances through an algorithm. However, the technology has larger errors in terms of geometric accuracy and distance accuracy, so that the obtained three-dimensional information has larger errors and defects, and has higher requirements on detection environments. Due to the landing of the Lidar technology and the recent unmanned technology, the problem of mass production of the Lidar is gradually solved. The cost of lidar is further reduced so that detection and three-dimensional reconstruction by lidar is a new option. The laser radar adopts invisible light for measurement, and has the advantages of short wavelength, high scanning frequency, low requirement on use environment and the like. Compared with the high requirements of a camera for light and detection environment, the laser radar has more excellent performance in a dim elevator shaft. The laser radar measuring device in common use needs to be provided with a complex measuring device in advance, and the comprehensive evaluation improves the accuracy of the measuring result but fails to effectively reduce the man-hour consumed by measurement. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the following technical scheme: a portable elevator hoistway laser radar measuring device comprises a fixed frame, a guide wire wheel set, a driving and signal transmission assembly, a lifting wire wheel set, a lifting measuring assembly, a communication control device, a guide hanging hammer assembly and a base; The fixing frame is of a prismatic frame structure with a hollow inside, the guide wire wheel set, the driving and signal transmission assembly and the lifting wire wheel set are sequentially and fixedly connected in the fixing frame, the guide wire wheel set controls the lifting of the guide lifting hammer assembly through a guide wire, and the lifting wire wheel set controls the lifting of the lifting measuring assembly through a lifting wire; the guide lifting hammer assembly and the guide wire jointly form a lifting channel of the lifting measurement assembly, and the lifting measurement assembly is used for measuring elevator shaft data and converting the elevator shaft data into transmissible signals to be output; the base is fixedly connected to the bottom of the fixed frame and can be detached and used for restraining the components in the fixed frame from shaking; The driving and signal transmission assembly is used for receiving command signals and controlling the running directions and speeds of the guide wire wheel groups and the lifting wire wheel groups, the communication control device is arranged outside the fixed frame and connected with the control end and used for sending command signals for starting or ending