A height detection and control system for high-altitude operations based on big data

Abstract

The invention belongs to the field of height monitoring, relates to a laser distance measurement technology, and is used to solve the problem that a height detection control system for high-altitude operations cannot process and analyze the validity of distance data collected by a laser distance meter. The invention specifically provides a height detection control system for high-altitude operations based on big data, comprising a height control platform, wherein the height control platform is communicatively connected with a collection module, an occlusion analysis module, an effective analysis module, a height monitoring module, and a storage module, wherein the collection module comprises a plurality of laser distance meters arranged on a wearable device, wherein the laser distance meter comprises a laser transmitter and a laser receiver, wherein the laser transmitter is used for laser emission, and the laser receiver is used for laser reception. The invention can monitor and analyze whether the laser distance meter can work normally, and then timely adjust the laser distance meter to prevent the occurrence of safety accidents caused by the failure of the accuracy of the height measurement result to meet the requirements.

Description

Technical Field

[0001] The present invention belongs to the field of height monitoring and relates to laser ranging technology, and specifically is a height detection and control system for high-altitude operations based on big data. Background Art

[0002] Aerial work usually refers to working at heights. In order to facilitate precautions during operation and effectively prevent accidents of people and objects falling from heights, according to the characteristics of the construction industry, in the construction and installation of buildings and structures, various forms of openings and edges within the structural range of buildings and structures, suspended and climbing operations, operating platforms and three-dimensional cross operations are carried out.

[0003] When the existing height detection and control system for high-altitude operations is working, it can only measure the distance through a laser rangefinder. However, it is unable to process and analyze the validity of the distance data collected by the laser rangefinder, resulting in the height control accuracy not being able to meet the requirements and posing certain safety hazards.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to provide a height detection and control system for high-altitude work based on big data, which is used to solve the problem that the height detection and control system for high-altitude work cannot process and analyze the validity of distance data collected by a laser rangefinder;

[0006] The technical problem to be solved by the present invention is: how to provide a height detection and control system for high-altitude operations that can process and analyze the validity of distance data.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A height detection and control system for high-altitude work based on big data, comprising a height control platform, wherein the height control platform is communicatively connected with a collection module, an occlusion analysis module, an effective analysis module, a height monitoring module and a storage module;

[0009] The acquisition module includes a plurality of laser rangefinders arranged on the wearable device, the laser rangefinder includes a laser transmitter and a laser receiver, the laser transmitter is used for laser emission, and the laser receiver is used for laser reception;

[0010] The occlusion analysis module is used to monitor and analyze the occlusion situation of the laser rangefinder, mark the laser rangefinder as a monitoring object i, i=1, 2, ..., n, n is a positive integer, and after the laser transmitter emits the laser, mark the monitoring object corresponding to the laser receiver that has not received the laser as an occlusion object, and judge whether the occlusion state of the monitoring object meets the requirements according to the proportion of the number of occlusion objects in the monitoring objects;

[0011] The effective analysis module monitors and analyzes the measurement effectiveness of the laser rangefinder when the occlusion state of the monitored object meets the requirements, removes the occlusion object from the monitored object, obtains the height value GDi of the monitored object through the distance value and angle value measured by the monitored object, establishes a height set for the height value GDi of the monitored object, calculates the variance of the height set to obtain the height performance value, and judges whether the effectiveness of the measurement result of the monitored object meets the requirements through the numerical value of the height performance value;

[0012] The height monitoring module monitors and analyzes the operating height of the operator when the validity of the measurement results of the monitored object meets the requirements.

[0013] As a preferred implementation of the present invention, the specific process of determining whether the occlusion state of the monitored object meets the requirements includes: obtaining the occlusion threshold through the storage module, and comparing the occlusion rate with the occlusion threshold:

[0014] If the occlusion rate is less than the occlusion threshold, it is determined that the occlusion state of the monitored object meets the requirements, and the occlusion analysis module generates an effective analysis signal and sends it to the altitude control platform. After receiving the effective analysis signal, the altitude control platform sends the effective analysis signal to the effective analysis module;

[0015] If the occlusion rate is greater than or equal to the occlusion threshold, it is determined that the occlusion state of the monitored object does not meet the requirements. The occlusion analysis module generates an occlusion signal and sends it to the height control platform. After receiving the occlusion signal, the height control platform sends the occlusion signal to the mobile terminal of the manager.

[0016] As a preferred embodiment of the present invention, the process of obtaining the height value of the monitored object includes: marking the distance value obtained by the monitored object i as the slant distance value XJi, marking the angle value of the angle between the laser line emitted by the monitored object i and the vertical direction as the offset PYi of the monitored object i, and obtaining the height value GDi measured by the monitored object i by performing trigonometric function calculation on the slant distance value XJi and the offset PYi. The calculation formula of the trigonometric function is GDi=cosPYi*XJi.

[0017] As a preferred embodiment of the present invention, the specific process of determining whether the validity of the measurement result of the monitored object meets the requirements includes: obtaining the height offset threshold GPmax through the storage module, and comparing the height offset value GP with the height offset threshold GPmax:

[0018] If the height offset value GP is less than the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object meets the requirements, and the effective analysis module generates a valid signal and sends it to the height control platform. After receiving the valid signal, the height control platform sends the valid signal to the height monitoring module;

[0019] If the height offset value GP is greater than or equal to the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object does not meet the requirements. The effective analysis module generates an invalid signal and sends it to the height control platform. After receiving the invalid signal, the height control platform sends the invalid signal to the acquisition module. After receiving the invalid signal, the acquisition module restarts all laser rangefinders. After the laser rangefinder is restarted, the distance is measured again and the measured results are sent to the occlusion analysis module.

[0020] As a preferred embodiment of the present invention, the specific process of the height monitoring module monitoring and analyzing the working height of the operator includes: summing and averaging the height values ​​of the monitored objects to obtain the height performance value of the operator, obtaining the height performance range through the storage module, and determining whether the height performance value of the operator is within the height performance range:

[0021] If so, it is determined that the operator's working height meets the requirements, and the height monitoring module generates a qualified height signal and sends it to the height control platform;

[0022] If not, it is determined that the operator's working height does not meet the requirements. The height monitoring module generates a height adjustment signal and sends it to the height control platform. After receiving the height adjustment signal, the height control platform adjusts the operator's working height until the operator's working height meets the requirements.

[0023] As a preferred embodiment of the present invention, the working method of the height detection and control system for high-altitude work based on big data includes the following steps:

[0024] Step 1: Monitor and analyze the occlusion of the laser rangefinder. After the laser transmitter emits the laser, mark the monitored object corresponding to the laser receiver that does not receive the laser as an occlusion object. Mark the ratio of the number of occlusion objects to the number of monitored objects as the occlusion rate. Determine whether the occlusion state of the monitored object meets the requirements based on the numerical value of the occlusion rate.

[0025] Step 2: When the occlusion state of the monitored object meets the requirements, the measurement effectiveness of the laser rangefinder is monitored and analyzed. The height value of the monitored object is obtained by numerically calculating the distance value and the offset angle obtained from the monitored object, and a height set is established and the height offset value is calculated. The numerical value of the height offset value is used to determine whether the effectiveness of the measurement result of the monitored object meets the requirements;

[0026] Step 3: When the validity of the detection results of the monitored object meets the requirements, the working height of the operators is monitored and analyzed to obtain the height performance value and height performance range of the operators, and whether the working height of the operators meets the requirements is determined by comparing the height performance value and the height performance range.

[0027] The present invention has the following beneficial effects:

[0028] 1. The occlusion analysis module can monitor and analyze the normal operation of the laser rangefinder. When the number of occluded objects accounts for a large proportion of the monitored objects, timely occlusion feedback is given. At this time, the number of laser rangefinders that can work normally does not meet the height monitoring requirements, and the laser rangefinder is adjusted in time to prevent the occurrence of safety accidents caused by the accuracy of the height measurement results not meeting the requirements;

[0029] 2. Through the effective analysis module, the deviation degree of the distance data detected by each laser rangefinder can be monitored and analyzed. When the deviation degree of the distance data detected by each laser rangefinder is too large, an invalid warning can be issued in time, and then the accuracy of the laser rangefinder with inaccurate measurement results can be adjusted to ensure that the high accuracy of the laser rangefinder output can meet the requirements;

[0030] 3. The height monitoring module can dynamically adjust the working height of high-altitude workers. Conventional distance measurement tools such as radar and laser are based on straight-line distance tests. For sensors installed on safety belt equipment, straight-line distance often cannot directly represent height. The measurement accuracy of vertical height values ​​is further guaranteed by the calculation method of trigonometric functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 is a system block diagram of Embodiment 1 of the present invention;

[0033] Figure 2This is a flow chart of the method of Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] When performing aerial work, for operators, when they fall, the ground may be uneven. The ground in this solution refers to the horizontal plane passing through the lowest fall point, and the so-called lowest fall point refers to the lowest point where one may fall when falling from the working position. This can be regarded as the maximum fall height. Therefore, the measurement of the height of the high-altitude work is based on the maximum value of the vertical distance from each working position to the corresponding fall reference plane. Monitoring and control of the height of the high-altitude work is crucial to the safety of the high-altitude work.

[0036] Embodiment 1

[0037] like Figure 1 As shown, a height detection and control system for high-altitude operations based on big data includes a height control platform, which is communicatively connected to a collection module, an occlusion analysis module, an effective analysis module, a height monitoring module and a storage module.

[0038] The acquisition module includes several laser rangefinders arranged on the wearable device. The laser rangefinder is an instrument that uses a certain parameter of the modulated laser to measure the distance to the target. The measurement range of the laser rangefinder is 3.5 to 5000 meters. According to the distance measurement method, it is divided into a phase method rangefinder and a pulse method rangefinder. The pulse laser rangefinder emits a beam or a sequence of short pulse laser beams to the target when working, and the laser beam reflected by the target is received by the photoelectric element. The timer measures the time from the emission to the reception of the laser beam, and calculates the distance from the observer to the target. The laser rangefinder includes a laser transmitter and a laser receiver. The laser transmitter is used for laser emission, and the laser receiver is used for laser reception.

[0039] The occlusion analysis module is used to monitor and analyze the occlusion situation of the laser rangefinder: mark the laser rangefinder as a monitoring object i, i=1, 2, ..., n, n is a positive integer, after the laser transmitter emits the laser, mark the monitoring object corresponding to the laser receiver that has not received the laser as an occlusion object, obtain the number of occlusion objects and mark it as m, and mark the ratio of m to n as the occlusion rate. The occlusion rate is a value that reflects the degree of occlusion of the laser emitted by the laser rangefinder. The larger the occlusion rate, the more laser rangefinders are blocked, and the less persuasive the distance value measured by the laser rangefinder is. The occlusion threshold is obtained through the storage module, and the occlusion rate is compared with the occlusion threshold: if the occlusion rate is less than the occlusion threshold, it is determined that the occlusion state of the monitored object meets the requirements, and the occlusion analysis module generates an effective analysis signal and sends it to the height Control platform, after receiving the effective analysis signal, the height control platform sends the effective analysis signal to the effective analysis module; if the occlusion rate is greater than or equal to the occlusion threshold, it is determined that the occlusion state of the monitored object does not meet the requirements. At this time, it is necessary to adjust the blocked laser rangefinder to ensure that the distance data output by the laser rangefinder is convincing; the occlusion analysis module generates an occlusion signal and sends it to the height control platform. After receiving the occlusion signal, the height control platform sends the occlusion signal to the mobile terminal of the manager; the laser rangefinder is monitored and analyzed for its normal operation. When the number of occluded objects accounts for a large proportion of the monitored objects, occlusion feedback is provided in time. At this time, the number of laser rangefinders that can work normally does not meet the height monitoring requirements, and the laser rangefinder is adjusted in time to prevent the occurrence of safety accidents caused by the accuracy of the height measurement results not meeting the requirements.

[0040] After receiving the effective analysis signal, the effective analysis module monitors and analyzes the measurement effectiveness of the laser rangefinder: the blocking object is removed from the monitored object, the distance value obtained by the monitored object i is marked as the slant distance value XJi, and the angle value between the laser line emitted by the monitored object i and the vertical direction is marked as the offset PYi of the monitored object i. The height value GDi measured by the monitored object i is obtained by performing trigonometric function calculation on the slant distance value XJi and the offset PYi. The calculation formula of the trigonometric function is GDi = cosPYi*XJi. Conventional distance measurement tools such as radar and laser are all based on straight-line distance. Test, for sensors installed on seat belt equipment, straight-line distance often cannot directly represent height. The accuracy of vertical height value measurement is further guaranteed by trigonometric calculation. The height value GDi measured by the monitoring object i is used to establish a height set, and the height set is calculated by variance to obtain the height offset value GP. The height offset value is a value that reflects the consistency of the distance data output by all laser rangefinders. The larger the height offset value, the greater the deviation of the distance data output by all laser rangefinders, and the lower the accuracy of the distance data output by the laser rangefinder, which needs to be re-calculated. Measurement; obtaining the height offset threshold GPmax through the storage module, and comparing the height offset value GP with the height offset threshold GPmax: if the height offset value GP is less than the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object meets the requirements, and the effective analysis module generates a valid signal and sends it to the height control platform. After receiving the valid signal, the height control platform sends the valid signal to the height monitoring module; if the height offset value GP is greater than or equal to the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object does not meet the requirements, the effective analysis module generates an invalid signal and sends it to the height control platform. After receiving the invalid signal, the height control platform sends the invalid signal to the acquisition module. After receiving the invalid signal, the acquisition module restarts all laser rangefinders. After the laser rangefinder is restarted, the distance measurement is performed again and the measured results are sent to the occlusion analysis module; the deviation degree of the distance data detected by each laser rangefinder is monitored and analyzed, and when the deviation degree of the distance data detected by each laser rangefinder is too large, an invalid warning is issued in time, and then the accuracy of the laser rangefinder with inaccurate measurement results is adjusted to ensure that the height accuracy output by the laser rangefinder meets the requirements.

[0041] After receiving the valid signal, the height monitoring module monitors and analyzes the working height of the operator: the height value GDi of the monitoring object i is summed and averaged to obtain the height performance value GB of the operator. The height performance value at this time is a height value that has passed the occlusion analysis and the effective analysis. The height performance value is a value that can effectively and accurately reflect the working height of the operator; the height performance range is obtained through the storage module. The height performance range is a dynamic value range directly obtained through construction requirements. The working height can be dynamically adjusted by comparing the height performance range with the height performance value to determine whether the height performance value GB of the operator is within If the height is within the performance range, the operating height is determined to meet the requirements, and the height monitoring module generates a qualified height signal and sends it to the height control platform; if not, the operating height is determined to not meet the requirements, and the height monitoring module generates a height adjustment signal and sends it to the height control platform. After receiving the height adjustment signal, the height control platform adjusts the operating height until the operating height meets the requirements; the working height of the high-altitude workers is dynamically adjusted. Conventional ranging tools such as radar and laser are based on straight-line distance tests, and the measurement accuracy of the vertical height value is further guaranteed by the calculation method of trigonometric functions.

[0042] Embodiment 2

[0043] like Figure 2 As shown, a method for height detection and control of high-altitude operations based on big data includes the following steps:

[0044] Step 1: Monitor and analyze the occlusion of the laser rangefinder. After the laser transmitter emits the laser, mark the monitored object corresponding to the laser receiver that does not receive the laser as an occlusion object, and mark the ratio of the number of occlusion objects to the number of monitored objects as the occlusion rate. The numerical value of the occlusion rate is used to determine whether the occlusion state of the monitored object meets the requirements, and then adjust the laser rangefinder in time to prevent the occurrence of safety accidents caused by the accuracy of the height measurement results not meeting the requirements;

[0045] Step 2: When the occlusion state of the monitored object meets the requirements, the measurement effectiveness of the laser rangefinder is monitored and analyzed. The height value of the monitored object is obtained by numerically calculating the distance value and the offset angle obtained by the monitored object, and a height set is established and the height offset value is calculated. The numerical value of the height offset value is used to determine whether the effectiveness of the measurement result of the monitored object meets the requirements, and then the laser rangefinder with inaccurate measurement results is adjusted to ensure that the height accuracy output by the laser rangefinder meets the requirements;

[0046] Step three: When the validity of the detection results of the monitored object meets the requirements, the working height of the operators is monitored and analyzed to obtain the height performance value and height performance range of the operators. By comparing the height performance value and the height performance range, it is determined whether the working height of the operators meets the requirements. The measurement accuracy of the vertical height value is further guaranteed by the calculation method of trigonometric functions.

[0047] A height detection and control system for high-altitude operations based on big data monitors and analyzes the occlusion of a laser rangefinder during operation, marks the ratio of the number of occluded objects to monitored objects as an occlusion rate, and determines whether the occlusion state of the monitored object meets the requirements by the numerical value of the occlusion rate; monitors and analyzes the measurement validity of the laser rangefinder when the occlusion state of the monitored object meets the requirements, and determines whether the validity of the measurement result of the monitored object meets the requirements by the numerical value of the height offset value; monitors and analyzes the working height of the operator when the validity of the detection result of the monitored object meets the requirements, obtains the height performance value and the height performance range of the operator, and determines whether the working height of the operator meets the requirements by comparing the height performance value with the height performance range.

[0048] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A height detection and control system for high-altitude operations based on big data, including a height control platform, characterized in that: The height control platform is communicatively connected with a collection module, an occlusion analysis module, an effective analysis module, a height monitoring module and a storage module; The acquisition module includes a plurality of laser rangefinders arranged on the wearable device, the laser rangefinder includes a laser transmitter and a laser receiver, the laser transmitter is used for laser emission, and the laser receiver is used for laser reception; The occlusion analysis module is used to monitor and analyze the occlusion of the laser rangefinder, mark the laser rangefinder as a monitoring object i, i=1, 2, ..., n, n is a positive integer, and after the laser transmitter emits the laser, mark the monitoring object corresponding to the laser receiver that has not received the laser as an occlusion object, and determine whether the occlusion state of the monitoring object meets the requirements according to the proportion of the number of occlusion objects in the monitoring objects; The effective analysis module monitors and analyzes the measurement effectiveness of the laser rangefinder when the occlusion state of the monitored object meets the requirements, removes the occlusion object from the monitored object, obtains the height value GDi of the monitored object through the distance value and angle value measured by the monitored object, establishes a height set for the height value GDi of the monitored object, calculates the variance of the height set to obtain the height performance value, and judges whether the effectiveness of the measurement result of the monitored object meets the requirements through the numerical value of the height performance value; The process of obtaining the height value of the monitored object includes: marking the distance value obtained by the monitored object i as the slant distance value XJi, marking the angle value between the laser line emitted by the monitored object i and the vertical direction as the offset PYi of the monitored object i, and obtaining the height value GDi measured by the monitored object i by performing trigonometric function calculation on the slant distance value XJi and the offset PYi. The calculation formula of the trigonometric function is: ; The specific process of determining whether the validity of the measurement result of the monitored object meets the requirements includes: obtaining the height offset threshold GPmax through the storage module, and comparing the height offset value GP with the height offset threshold GPmax: If the height offset value GP is less than the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object meets the requirements, and the effective analysis module generates a valid signal and sends it to the height control platform. After receiving the valid signal, the height control platform sends the valid signal to the height monitoring module; If the height offset value GP is greater than or equal to the height offset threshold GPmax, it is determined that the validity of the measurement result of the monitored object does not meet the requirements, and the effective analysis module generates an invalid signal and sends it to the height control platform. After receiving the invalid signal, the height control platform sends the invalid signal to the acquisition module. After receiving the invalid signal, the acquisition module restarts all laser rangefinders. After the laser rangefinder is restarted, the distance is measured again and the measured result is sent to the occlusion analysis module; The height monitoring module monitors and analyzes the operating height of the operator when the validity of the measurement results of the monitored object meets the requirements.

2. According to the big data-based height detection and control system for high-altitude operations according to claim 1, it is characterized in that: The specific process of determining whether the occlusion state of the monitored object meets the requirements includes: obtaining the occlusion threshold through the storage module, and comparing the occlusion rate with the occlusion threshold: If the occlusion rate is less than the occlusion threshold, it is determined that the occlusion state of the monitored object meets the requirements, and the occlusion analysis module generates an effective analysis signal and sends it to the altitude control platform. After receiving the effective analysis signal, the altitude control platform sends the effective analysis signal to the effective analysis module; If the occlusion rate is greater than or equal to the occlusion threshold, it is determined that the occlusion state of the monitored object does not meet the requirements. The occlusion analysis module generates an occlusion signal and sends it to the height control platform. After receiving the occlusion signal, the height control platform sends the occlusion signal to the mobile terminal of the manager.

3. According to the big data-based height detection and control system for high-altitude operations according to claim 1, it is characterized in that: The specific process of the height monitoring module monitoring and analyzing the working height of the operator includes: summing and averaging the height values ​​of the monitored objects to obtain the height performance value of the operator, obtaining the height performance range through the storage module, and determining whether the height performance value of the operator is within the height performance range: If so, it is determined that the operator's working height meets the requirements, and the height monitoring module generates a qualified height signal and sends it to the height control platform; If not, it is determined that the operator's working height does not meet the requirements. The height monitoring module generates a height adjustment signal and sends it to the height control platform. After receiving the height adjustment signal, the height control platform adjusts the operator's working height until the operator's working height meets the requirements.

4. A height detection and control system for high-altitude operations based on big data according to any one of claims 1 to 3, characterized in that: The working method of the height detection and control system for high-altitude work based on big data includes the following steps: Step 1: Monitor and analyze the occlusion of the laser rangefinder. After the laser transmitter emits the laser, mark the monitored object corresponding to the laser receiver that does not receive the laser as an occlusion object. Mark the ratio of the number of occlusion objects to the number of monitored objects as the occlusion rate. Determine whether the occlusion state of the monitored object meets the requirements based on the numerical value of the occlusion rate. Step 2: When the occlusion state of the monitored object meets the requirements, the measurement effectiveness of the laser rangefinder is monitored and analyzed. The height value of the monitored object is obtained by numerically calculating the distance value and the offset angle obtained from the monitored object, and a height set is established and the height offset value is calculated. The numerical value of the height offset value is used to determine whether the effectiveness of the measurement result of the monitored object meets the requirements; Step 3: When the validity of the detection results of the monitored object meets the requirements, the working height of the operators is monitored and analyzed to obtain the height performance value and height performance range of the operators, and whether the working height of the operators meets the requirements is determined by comparing the height performance value and the height performance range.

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