CN211452209U

CN211452209U - Multifunctional detector

Info

Publication number: CN211452209U
Application number: CN202020440707.5U
Authority: CN
Inventors: 陈举; 李志杰; 龙婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-09-08
Anticipated expiration: 2030-03-31

Abstract

The application provides a multifunctional detector, includes: the wireless ranging module is used for performing linear ranging; the wired ranging module is used for carrying out nonlinear ranging; the wired ranging module includes: the device comprises a Hall sensor, a measuring line, a ranging disc and a magnetic contact arranged on the ranging disc; the magnetic contact is arranged at the edge of the ranging disc, the Hall sensor is arranged on the ranging disc, and the measuring line bypasses the ranging disc; the movement of the measuring line drives the ranging disc to rotate, the Hall sensor senses the potential magnetic field of the magnetic contact to obtain the number of turns of the ranging disc, and then the moving length of the measuring line is calculated according to the number of turns to finish nonlinear ranging; and the controller is connected with the wireless ranging module and the Hall sensor and is used for processing the data measured by the wireless ranging module and the wired ranging module. Through wireless range finding module and wired range finding module combination for multi-functional detector can carry out sharp range finding, also can carry out non-straight line range finding, and the practicality is higher.

Description

Multifunctional detector

Technical Field

The application relates to the field of distance measurement, particularly, relates to a multifunctional detector.

Background

Currently, the conventional range finder generally performs range finding by emitting laser or infrared rays, and since light can only be transmitted in a straight line, the conventional wireless range finder can only perform straight line range finding. When the non-linear distance measurement such as arc or electric wire is needed, the existing distance measuring instrument can not meet the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a multifunctional detector for solving the problem that the distance measuring instrument cannot realize non-linear distance measurement.

In a first aspect, an embodiment of the present invention provides a multifunctional detector, include:

the wireless ranging module is used for performing linear ranging;

the wired ranging module is used for carrying out nonlinear ranging;

the wired ranging module includes: the device comprises a Hall sensor, a measuring line, a ranging disc and a magnetic contact arranged on the ranging disc; the magnetic contact is arranged at the edge of the ranging disc, the Hall sensor is arranged on the ranging disc in a hanging mode, one end of the Hall sensor is fixed at the center of the ranging disc through a fixing rod, the other end of the Hall sensor is arranged above the edge of the ranging disc 1023 in a hanging mode, and the measuring line bypasses the ranging disc;

the movement of the measuring line drives the distance measuring disc to rotate, the Hall sensor senses the magnetic field of the magnetic contact, the number of turns of the distance measuring disc rotating is obtained, the moving length of the measuring line is calculated according to the number of turns, and nonlinear distance measurement is completed;

and the controller is connected with the wireless ranging module and the Hall sensor and is used for processing the data measured by the wireless ranging module and the wired ranging module.

This application provides a high accuracy, convenient nonlinear ranging module through adopting hall sensor and range finding disc, combines wireless ranging module and wired ranging module for the function of multi-functional detector is abundanter, and the practicality is higher.

In an alternative embodiment, the multi-functional test meter comprises: a housing;

the wireless distance measuring module, the Hall sensor, the distance measuring disc and the controller are all arranged in the shell, and one end of the measuring line bypasses the distance measuring disc and then extends out of the shell from an opening of the shell.

In an alternative embodiment, the multi-functional meter further comprises a handle; the handle is arranged below the shell and used for holding the multifunctional detector in hand;

the handle comprises a first handle and a second handle, one end of the first handle is fixedly connected with the shell, and the other end of the first handle is detachably connected with the second handle; the measurement line is disposed in the first handle.

In an optional embodiment, the wired ranging module further includes: a recovery device;

the recovery device is disposed in the first handle;

the other end of the measuring line is wound on the recovery device, the recovery device is electrically connected with the controller, and the measuring line is recovered according to the instruction of the controller.

Through setting up measuring line and recovery unit in hollow first handle, reduced the quantity of setting subassembly in the casing effectively, and then alleviateed the weight of casing for the user is handheld when using multi-functional detector, and is more convenient, has improved multi-functional detector's practicality.

In an alternative embodiment, the multi-functional test meter further comprises: a tool box;

the tool box is detachably connected to one end, far away from the shell, of the second handle.

In an alternative embodiment, the tool box includes a screwdriver bit and a tool bit; the screwdriver head or the tool head is connected with one end, far away from the shell, of the second handle after being detached to form a screwdriver or a tool knife.

In an alternative embodiment, the end of the second handle remote from the housing is provided with a thread for connection with a screwdriver bit or a tool bit.

Through setting up detachable toolbox and second handle, screwdriver head and tool bit in the toolbox connect with the second handle and constitute screwdriver or tool bit, have enriched the function of multi-functional detector 10.

In an alternative embodiment, the multi-functional test meter further comprises: a telescopic steel ruler;

the telescopic steel ruler is arranged below the outer side of the shell.

Set up flexible steel rule in the casing below of multi-functional detector, can convenience of customers according to the mapping of measuring result, improve multi-functional detector's practicality.

In an alternative embodiment, the multi-functional test meter further comprises a memory module; the storage module is arranged in the shell, electrically connected with the controller and used for storing the ranging results of the wireless ranging module and the wired ranging module.

In an alternative embodiment, the multi-functional test meter further comprises a display screen; the display screen is embedded in the shell, connected with the controller and used for displaying the ranging results of the wireless ranging module and the wired ranging module.

Through setting up the display screen for the user can know the range finding result more directly perceivedly, records measured data.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a perspective view of a multifunctional detector provided in an embodiment of the present application;

fig. 2 is a plan view of a distance measuring disc provided in an embodiment of the present application.

Icon: 10-multifunctional detector; 101-a wireless ranging module; 102-a wired ranging module; 1021-a hall sensor; 1022-measurement line; 1023-a distance measuring disc; 1024 — a magnetic contact; 1025-recovery unit; 103-a controller; 104-a housing; 1041-a first opening; 1042 — a second opening; 105-a handle; 1051-a first handle; 1052-a second handle; 106-a tool kit; 107-telescopic steel rule; 108-display screen.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Referring to fig. 1, fig. 1 is a perspective view of a multifunctional detector according to an embodiment of the present disclosure, which provides a multifunctional detector 10 capable of performing linear distance measurement and non-linear distance measurement.

In this embodiment, the multifunctional detector 10 includes: a wireless ranging module 101, a wired ranging module 102, and a controller 103.

The wireless ranging module 101 is connected to the controller 103 and is used for performing linear ranging. The wireless ranging module 101 employs a laser ranging sensor. Laser ranging is one of the ranging methods in wireless ranging. When the laser ranging sensor works, a target to be measured is aligned to emit laser pulses, laser is reflected to all directions after the laser pulses are reflected by the target, and part of scattered light returns to the laser ranging sensor. Since the speed of light is known, the laser range sensor can determine the distance of the target from the laser range sensor by recording and processing the time difference between the emission of the laser pulse and the receipt of the returning scattered light in combination with the speed of light and the time difference. The laser ranging sensor has the advantages of capability of realizing non-contact remote measurement, high measurement speed, high precision and strong light and electric interference resistance.

Further, in the embodiment of the present application, the wireless ranging module 101 employs a ToF laser ranging sensor. When the multifunctional detector 10 performs linear distance measurement, the controller 103 controls the ToF laser distance measurement sensor to start working, the ToF laser distance measurement sensor emits a laser beam to the target to be measured, and the emitted laser beam is reflected by the target to be measured and then received by the ToF laser distance measurement sensor. Meanwhile, the ToF laser ranging sensor records the round trip time of the laser, and a processor built in the ToF laser ranging sensor calculates half of the product of the speed of light and the round trip time as the distance between the multifunctional detector 10 and the measured object and transmits the distance to the controller 103.

Optionally, the wireless ranging module 101 in this application may also adopt an infrared ranging sensor or an ultrasonic ranging sensor to realize linear ranging. The working principle of the infrared distance measuring sensor and the ultrasonic distance measuring sensor is approximately the same as that of the laser distance measuring sensor, the main difference lies in that the adopted distance measuring media are different, the infrared distance measuring sensor adopts infrared rays as media to perform linear measurement, and the ultrasonic distance measuring sensor adopts ultrasonic waves as the media to perform linear measurement. Because the adopted distance measuring media are different, the accuracy, the measuring range, the response speed, the anti-interference capability, the cost and the like of the measuring result are different. It can be understood that, in the embodiment of the present application, there is no limitation on what kind of wireless ranging sensor is used in the wireless ranging module 101, and those skilled in the art can make a suitable selection according to actual situations.

Referring to fig. 1 to fig. 2, fig. 2 is a structural diagram of a wired ranging module according to an embodiment of the present disclosure. The wired ranging module 102 includes: hall sensor 1021, measurement line 1022, ranging puck 1023, and magnetic contacts 1024 disposed on ranging puck 1023.

As shown in fig. 2, the magnetic contact 1024 is disposed at the edge of the distance measuring disk 1023, the hall sensor 1021 is disposed above the magnetic contact 1024, and the measuring line 1022 is routed around the distance measuring disk 1023.

The removal of measuring line 1022 drives range finding disc 1023 and rotates, and hall sensor 1021 responds to the magnetic field of magnetic contact 1024, learns the number of turns that range finding disc 1023 rotated, calculates the length that measuring line 1022 removed according to the number of turns again, accomplishes the non-straight line range finding.

Specifically speaking, hall sensor 1021 is unsettled to be set up on range finding disc 1023, and the center department at the range finding disc is fixed through the dead lever to one end, and the unsettled setting of the other end is equipped with a plurality of magnetic contact 1024 in range finding disc 1023 edge top, range finding disc 1023, and survey crew when carrying out wired range finding, will measure the line and pull out, and the removal of measure line 1022 drives range finding disc 1023 and rotates. During the rotation of the distance measuring disc 1023, the hall sensors 1021 are fixed, and each distance measuring disc 1023 passes through the magnetic contact 1024 of the hall sensors 1021 to generate a pulse with the hall sensors 1021. Hall sensor 1021 is connected with controller 103, Hall sensor 1021 sends the pulse number of times that produces to controller 103, controller 103 is according to the number of times of pulse and the number of magnetic contact 1024 on the disc 1023 of range finding, can learn the number of turns that disc 1023 of range finding rotated, again according to the number of turns that disc 1023 of range finding rotated and the girth of disc 1023 of range finding, calculate the distance that disc 1023 of range finding rotated, and then learn the distance that measuring line 1022 removed, accomplish non-linear distance measurement.

How the wired ranging module 102 implements non-linear ranging is described below with reference to a specific example.

When the multifunctional detector 10 performs non-linear distance measurement, the measurement line 1022 is pulled at the starting point to be measured, and the non-linear area to be measured is measured. The measuring wire 1022 drives the distance measuring disc 1023 to rotate when being pulled. When the measuring line 1022 reaches the end point to be measured, the controller 103 calculates the distance traveled by the measuring line, i.e., the distance to be measured, according to the number of pulses sent by the hall sensor 1021. Assuming that there are 20 magnetic contacts 1024 on the ranging disk 1023, the circumference of the ranging disk is 50 centimeters. If the number of pulses received by the controller 103 is 50, the distance measuring disc 1023 is driven by the measuring line 1022 to rotate for 2.5 circles, and the distance to be measured is 125 cm.

It is understood that the number of magnetic contacts 1024 on the distance measuring disk 1023 and the circumference of the distance measuring disk 1023 are only one embodiment, and those skilled in the art can select the appropriate number of magnetic contacts 1024 and the circumference of the distance measuring disk 1023 according to actual needs. It should be noted that the greater the number of magnetic contacts 1024 provided on the distance measuring disk 1023, the higher the accuracy of the non-linear distance measurement.

Optionally, an angle sensor may be used in addition to the hall sensor 1021 to perform wired distance measurement. Angle sensor is connected with range finding disc 1023, and range finding disc 1023's rotation drives angle sensor and rotates, and angle sensor sends the pivoted angle for controller 103, and controller 103 derives the pivoted number of turns according to the pivoted angle, then combines the girth of range finding disc 1023 to obtain wired range finding's result.

Further, in order to facilitate the recovery of the pulled-out measuring wire 1022 so that the measuring wire 1022 returns to the original state (i.e., the state of not being pulled out), the wired ranging module 102 may further include a recovery device 1025. The recovery unit 1025 is connected to one end of the measurement line 1022, and recovers the measurement line 1022 according to an instruction from the controller 103. After the multifunctional detector 10 completes the non-linear distance measurement, the controller 103 sends a recovery command to the recovery unit 1025, and the recovery unit 1025 recovers the measurement line 1022 through the motor.

Most of the existing wireless distance measuring devices can only carry out linear distance measurement, but in the actual use process, in addition to the linear distance measurement, the non-linear distance measurement is also needed. This application adopts hall sensor and range finding disc, provides a high accuracy, convenient nonlinear distance measuring module. Combine wireless range finding module and wired range finding module for the function of multi-functional detector is abundanter, and the practicality is higher.

The controller 103 is connected to the wireless ranging module 101 and the hall sensor 1021, and is configured to process data measured by the wireless ranging module 101 and the wired ranging module 102. Further, the controller 103 is a single chip, an integrated circuit chip, or the like, and has signal processing and controlling capabilities. For example, the processor may be a general purpose processor, such as a Central Processing Unit (CPU); but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. In the present application, a single chip microcomputer is selected as the controller 103 in consideration of power consumption and size. Specifically, the chip of STM32F103ZET6 is used as the controller 103.

Further, in this embodiment, the multi-function test meter 10 may include a housing 104. The housing 104 is a rectangular parallelepiped having a hollow structure. The wireless ranging module 101, the wired ranging module 102, and the controller 103 are all disposed in the housing 104.

Furthermore, the transceiver end of the wireless ranging module 101 is disposed at the outer edge of the housing 104, so that the wireless ranging module 101 can transmit and receive laser, infrared or ultrasonic waves. Because the working principle of the wireless ranging module 101 is to calculate the distance by measuring the round trip time of the emitted laser, if the transceiver end of the wireless ranging module 101 is arranged inside the shell 104, the received signal will be affected when the wireless ranging is performed, and the measurement precision is further reduced.

A first opening 1041 is formed in one side of the housing 104, and the measuring wire 1022 passes around the distance measuring disk 1023 and extends out of the housing 104 from the first opening 1041 of the housing, so that the user can pull the measuring wire 1022 to measure a non-straight line.

It is understood that in other embodiments, the housing 104 may have other shapes, and those skilled in the art can adjust the shape according to actual needs, which is not limited to the present application.

The multi-function test meter 10 may also include a handle 105. A handle 105 disposed below the housing 104 for holding the multi-function test meter 10;

the handle 105 includes a first handle 1051 and a second handle 1052, and the first handle 1051 is fixedly connected to the housing 104 at one end and detachably connected to the second handle 1052 at the other end. The measurement line 1022 is disposed in the first handle 1051. The handle 105 may be configured to facilitate use of the multi-function test meter 10 in the hand of a user.

In the embodiment of the present application, it is considered that, in the case that the user uses the multifunctional detecting apparatus 10 by hand, the number of components disposed in the housing 104 is not too large, otherwise, the weight of the upper portion of the multifunctional detecting apparatus 10 is too large, which affects the convenience of the multifunctional detecting apparatus 10. Thus, as an embodiment, the measuring line 1022 and the recovery device 1025 may be disposed in the first handle 1051. The first handle 1051 is fixedly connected to the housing 104, and has a hollow structure, and the measuring wire 1022 and the retrieving unit 1025 are disposed in the hollow first handle 1051. An opening is arranged in the direction of the first handle 1051 close to the casing 104, a second opening 1042 is arranged on the casing 104 at the corresponding position, one end of the measuring wire 1022 is wound on the recycling device 1025, and the other end of the measuring wire 1022 passes through the opening of the first handle 1051 and the second opening 1042 on the casing 104, bypasses the ranging disk 1023, and then extends out of the casing 104 from the first opening 1041 on the casing 104.

In order to facilitate the pulling out of the measuring wire 1022 from the second opening 1042 of the housing 104, one or more direction-changing gears may be disposed in a position parallel to the second opening 1042, and the measuring wire 1022 led out from the first handle 1051 below is turned back by the direction-changing gears and is located on the same horizontal plane as the second opening 1042, thereby facilitating the user to complete wired distance measurement.

Through setting up measuring wire 1022 and recovery unit 1025 in hollow first handle 1051, the effectual quantity that reduces the subassembly that sets up in casing 104, and then has alleviateed the weight of casing 104 for the user is when handheld use multifunctional detector 10, and is more convenient, has improved multifunctional detector 10's practicality.

The multi-function monitor 10 also includes a tool box 106, the tool box 106 being removably attached to an end of the second handle 1052 remote from the housing 104. The second handle 1052 is detachably connected at one end to the first handle 1051 and at the other end to the tool box 106.

Optionally, the tool box 106 may be snap-fit to the second handle 1052, such that the tool box 106 may be removed and tools used therein when the user is using the multi-function monitor 10 for testing.

Various tools are provided in the tool box 106, which may include: screwdriver bits, tool bits, open spanner heads, test pens, wrenches and other tools. As an alternative embodiment, the end of the second handle 1052 remote from the housing is provided with a thread, and the screwdriver bit or tool bit is connected to the thread on the second handle 1052 after removal, thereby forming a screwdriver or tool bit. Specifically, the screwdriver head may include a straight line, a cross, a Chinese character 'mi', a star, a square head, a hexagonal head, a Y-shape, etc.; the tool bit may include a sharp edge knife, a trim knife, a V-shaped knife, or the like; according to different use scenarios, the user can take out the corresponding screwdriver bit or tool bit from the tool box 106, separate the second handle 1052 from the first handle 1051, and connect the screwdriver bit with the screw thread on the second handle 1052 to form the screwdriver. It is understood that various sizes of open wrench heads may be included in the tool box 106. The open spanner head is connected in the same way to a second handle 1052, constituting a spanner.

It will be appreciated that the end of the second handle 1052 remote from the housing 104 may be combined into a new tool by providing a snap connection with the screwdriver bit, tool bit or open end wrench in addition to the threaded connection with the screwdriver bit, tool bit or open end wrench.

By providing the detachable tool box 106 and the second handle 1052, the screwdriver bit and the tool bit in the tool box 106 are connected with the second handle 1052 to form a screwdriver or a tool knife, which enriches the functions of the multi-function testing machine 10.

The multi-function test meter 10 also includes a telescoping steel rule 107. A telescopic steel rule 107 is provided outside and below the housing 104. The telescopic steel rule 107 is detachably arranged at the lower part of the outer side of the shell 104, one end of the telescopic steel rule is close to the first handle 1051, and the other end of the telescopic steel rule extends out of the edge of the shell 104. In practical use, after a user uses the multifunctional detecting instrument 10 to perform linear or non-linear distance measurement, a drawing is often required according to a distance measurement result. Therefore, the telescopic steel ruler 107 is arranged below the shell 104 of the multifunctional detector 10, so that drawing by a user can be facilitated, and the practicability of the multifunctional detector 10 is improved.

The multifunctional detector 10 further comprises a storage module disposed in the housing 104 and electrically connected to the controller 103 for storing the distance measurement results of the wireless distance measurement module 101 and the wired distance measurement module 102.

The multifunctional detector 10 further comprises a key; the button is disposed on the housing 104 and connected to the controller 103 for controlling the operation and switching of the multi-function testing machine 10. The key can be a knob, and the knob is divided into a wireless distance measuring gear and a wired distance measuring gear. When the knob is selected as the wireless ranging gear, the controller 103 controls the wireless ranging module 101 to work to perform wireless ranging; when the knob is selected as the wireless ranging gear, the user pulls the measuring wire 1022, the controller 103 receives the number of pulses transmitted from the hall sensor 1021, and then the length of the pulling of the measuring wire 1022 is obtained according to the number of pulses as a result of wired ranging.

The multi-function test meter 10 also includes a display screen 108; the display screen 108 is embedded in the housing 104 and connected to the controller 103 for displaying the ranging results of the wireless ranging module 101 and the wired ranging module 102. The controller 103 transmits the wireless ranging result received from the wireless ranging module 101 and the wired ranging result derived from the number of pulses to the display screen 108 and instructs the display screen 108 to display the received ranging result. By arranging the display screen 108, the user can know the distance measurement result more intuitively and record the measurement data.

The multifunctional detector 10 further comprises a power supply, the power supply is arranged in the casing 104, and the power supply is connected with the wireless distance measuring module 101, the hall sensor 1021, the recovery device 1025, the controller 103, the display screen 108 and the like to provide required voltage for normal operation of the above components.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional inspection apparatus, comprising:

the wireless ranging module is used for performing linear ranging;

the wired ranging module is used for carrying out nonlinear ranging;

the wired ranging module includes: the device comprises a Hall sensor, a measuring line, a ranging disc and a magnetic contact arranged on the ranging disc; the magnetic contact is arranged at the edge of the ranging disc, the Hall sensor is arranged on the ranging disc in a hanging mode, one end of the Hall sensor is fixed at the center of the ranging disc through a fixing rod, the other end of the Hall sensor is arranged above the edge of the ranging disc in a hanging mode, and the measuring line bypasses the ranging disc;

2. The multi-functional test meter of claim 1, wherein the multi-functional test meter comprises: a housing;

3. The multi-function test meter of claim 2, further comprising a handle; the handle is arranged below the shell and used for holding the multifunctional detector in hand;

4. The multi-function meter of claim 3, wherein the wired ranging module further comprises: a recovery device;

the recovery device is disposed in the first handle;

5. The multi-function test meter of claim 3, further comprising: a tool box;

6. The multi-function test meter of claim 5, wherein said tool box includes a screwdriver bit and a tool bit; the screwdriver head or the tool head is connected with one end, far away from the shell, of the second handle after being detached to form a screwdriver or a tool knife.

7. The multi-function test meter of claim 6, wherein the second handle includes threads on an end thereof remote from the housing for engaging a screwdriver or tool bit.

8. The multi-function test meter of claim 2, further comprising: a telescopic steel ruler;

the telescopic steel ruler is arranged below the outer side of the shell.

9. The multi-function test meter of claim 2, further comprising a memory module; the storage module is arranged in the shell, electrically connected with the controller and used for storing the ranging results of the wireless ranging module and the wired ranging module.

10. The multi-function test meter of claim 2, wherein the multi-function test meter further comprises a display screen; the display screen is embedded in the shell, connected with the controller and used for displaying the ranging results of the wireless ranging module and the wired ranging module.