1. The intelligent management method for building construction is characterized in that a construction site is monitored in real time through an environment monitoring module, and the construction site is intelligently managed through an on-site production management module; the environment monitoring module monitors a construction site in real time and comprises the following contents: monitoring PM2.5 of a construction site, and starting a spraying device when the current PM2.5 measurement value is larger than a preset range; and when the current PM2.5 measured value is smaller than the preset range, closing the spraying device.

2. The intelligent management method for building construction according to claim 2, wherein the on-site production management module comprises a spraying control unit; the spraying control unit is used for starting or closing the spraying device; the environment monitoring module comprises a plurality of environment sensors which are distributed on a construction site; the PM2.5 of the monitoring construction site is specifically PM2.5 of the monitoring construction site in real time through a plurality of environment sensors; each environmental sensor and each spray device are correspondingly arranged, and when the PM2.5 current measurement value detected by one environmental sensor is larger than a preset range, the spray device corresponding to the environmental sensor is started.

3. The intelligent management method for building construction according to claim 2, wherein all spraying devices are turned off when the current measurement values of PM2.5 detected by all environment sensors are less than a preset range.

4. The intelligent management method for building construction according to claim 1, wherein the on-site production management module comprises an access control unit; the access control unit compares the personnel information by identifying preset access passing modes corresponding to various access authorization levels, and if the comparison is successful, the access control is opened for releasing; the preset access control method comprises an IC card identification mode, an NFC identification mode and a face identification mode.

5. The intelligent management method for building construction according to claim 4, wherein the preset access control passing mode corresponding to the various access control authorization levels is specifically that a worker who appears on a construction site for less than or equal to seven days passes through an IC card identification mode as an access control passing mode, and a worker who appears on a construction site for more than seven days passes through an NFC identification mode as an access control passing mode; the method comprises the following steps that an NFC recognition mode is adopted as an access control passing mode for workers with less than or equal to seven days but inconvenient operation; and the face recognition mode is adopted as the access control passing mode for the access control at the important position.

6. The intelligent management method for building construction according to claim 5, wherein the NFC recognition mode is adopted as the access control passing mode for workers who are less than or equal to seven days but inconvenient to operate, specifically, the NFC recognition mode is adopted as the access control passing mode for truck drivers, truck drivers and other workers who are inconvenient to carry materials, and meanwhile, the personnel information is read out through voice broadcasting when the workers pass through the access control.

7. The intelligent management method for building construction according to claim 5, wherein the method for the entrance guard at the important position to adopt a face recognition mode as an entrance guard passing mode comprises the steps of carrying out auxiliary height detection on a recognized person while carrying out face recognition, and starting the entrance guard to pass when the face recognition and the height detection are both recognized to pass.

8. The intelligent management method for building construction according to claim 7, wherein the auxiliary height detection comprises randomly selecting whole body images of more than two workers and distances between the workers and the face recognition device in the process that the workers approach the face recognition device, calculating the height of the workers through image recognition during face recognition and comparing the height with preset personnel information of the workers, and if the comparison is successful, passing the height detection.

9. The intelligent management method for building construction according to claim 8, wherein the randomly selected whole-body images of two or more workers are whole-body images of workers photographed by a face recognition camera of a face recognition device, and the distance between the workers and the face recognition device is detected by an infrared distance sensor on the face recognition device.

10. The intelligent management method for building construction according to claim 1, wherein the on-site production management module comprises an underground control unit, and the underground construction process is monitored through the underground control unit and the monitoring position is dynamically moved along with the construction progress.

Background

An intelligent construction site is a digital management system of a construction site based on a BIM (Building Information Modeling) technology and an Internet of Things (IOT) technology, which is made in recent years, and Information sharing and transmission are carried out in the life cycle process of project planning, operation and maintenance by integrating the Building datamation and informatization models by utilizing the Building Information model technology, so that engineering technicians can correctly understand and efficiently respond to various Building Information, a foundation for cooperative work is provided for Building design teams and construction units, and important effects are played in the aspects of improving production efficiency, saving cost and shortening construction period.

However, smart sites now offer much room for improvement in the intelligent management of the job site, much more than just the sharing and transfer of information itself, much like a large data collection device. Although intelligent systems such as intelligent construction sites exist, the management of the construction site at present cannot be intelligently managed according to the actual situation of the construction site, the intelligence is not achieved, and the manual operation of operators cannot be kept. Therefore, an intelligent management method is urgently needed at present to make full use of the existing intelligent management system and really achieve intelligent management of a construction site.

Disclosure of Invention

The invention provides an intelligent management method for building construction, which is used for solving the problem that the existing construction site management cannot fully utilize the existing system for intelligent management.

The basic scheme provided by the invention is as follows: the construction site is monitored in real time through an environment monitoring module, and intelligent management is carried out on the construction site through an on-site production management module; the environment monitoring module monitors a construction site in real time and comprises the following contents: monitoring PM2.5 of a construction site, and starting a spraying device when the current PM2.5 measurement value is larger than a preset range; and when the current PM2.5 measured value is smaller than the preset range, closing the spraying device.

The invention has the advantages that:

the intelligent management method for building construction can be combined with actual requirements of a construction site, an existing intelligent system is utilized to monitor PM2.5 in real time, whether the spraying device is started or not is judged according to the current PM2.5 measured value, on the premise that the PM2.5 of the construction site is smaller than a preset range, the on-off of the spraying device is dynamically controlled, and the purpose of saving energy can be achieved.

More importantly, the scheme is small and large, the existing intelligent system can be fully utilized, intelligent management is carried out in a construction site, and the purposes of saving labor cost and energy are achieved.

Further, the field production management module comprises a spraying control unit; the spraying control unit is used for starting or closing the spraying device; the environment monitoring module comprises a plurality of environment sensors which are distributed on a construction site; the PM2.5 of the monitoring construction site is specifically PM2.5 of the monitoring construction site in real time through a plurality of environment sensors; each environmental sensor and each spray device are correspondingly arranged, and when the PM2.5 current measurement value detected by one environmental sensor is larger than a preset range, the spray device corresponding to the environmental sensor is started.

PM2.5 of whole job site is monitored through the environmental sensor who sets up in each position, and the corresponding spray set of environmental sensor start-up can reach where there is the pollution and where just the effect of eliminating, can effective energy saving, and the dust is eliminated to the accurate carrying on.

Further, when the current PM2.5 measured values detected by all the environment sensors are smaller than the preset range, all the spraying devices are closed.

When the spraying device is closed, the PM2.5 current measurement value detected by all the environment sensors is required to be smaller than the preset range, so that monitoring holes formed due to unreasonable arrangement of the environment sensors can be effectively avoided.

Furthermore, the field production management module comprises an access control unit; the access control unit compares the personnel information by identifying preset access passing modes corresponding to various access authorization levels, and if the comparison is successful, the access control is opened for releasing; the preset access control method comprises an IC card identification mode, an NFC identification mode and a face identification mode.

Through multiple entrance guard's mode of passing through, the staff that helps different authorization levels carries out hierarchical discernment investigation when passing through entrance guard fast, effectively avoids irrelevant personnel to enter into the job site, effectively protects the financial affairs and the construction safety of job site.

Further, the preset access control passing mode corresponding to the identification of various access control authorization levels is specifically that workers appearing in a construction site for less than or equal to seven days pass through an IC card identification mode as an access control passing mode, and workers appearing in a construction site for more than seven days pass through an NFC identification mode as an access control passing mode; the method comprises the following steps that an NFC recognition mode is adopted as an access control passing mode for workers with less than or equal to seven days but inconvenient operation; and the face recognition mode is adopted as the access control passing mode for the access control at the important position.

The reasonable authorization can be carried out on the workers with different operations most reasonably through the access control device, and the effect is best.

Further, to less than or equal to seven days but the staff of inconvenient operation adopt the NFC recognition mode as entrance guard's pass through the mode specifically do, adopt the NFC recognition mode as entrance guard's pass through the mode to truck driver, truck driver and other staff who carry the inconvenience of material, read out personnel's information through the voice broadcast when this staff passes through entrance guard simultaneously.

Carry the staff of a large amount of materials, because inconvenient taking out the IC-card and reading the discernment, very easily stop and block up the gate because of carrying a large amount of materials, be unfavorable for the quick circulation of job site, read out personnel's information through the sound broadcast when discerning with NFC, not only do not influence quick passing through of staff, also can make things convenient for the entrance guard to correspond the personnel's of looking over this staff information, and have the warning effect to staff itself, combine the camera that gate department set up, can accomplish the control to the staff with the audio-visual integration.

Further, adopt face identification mode to the entrance guard of important position to include as entrance guard's pass through mode, carry out supplementary height detection to the person identified in face identification, start the entrance guard and pass through after face identification and height detection all discernment.

By the arrangement, the accuracy of face recognition can be reduced, but the whole recognition accuracy is not reduced.

Further, the auxiliary height detection comprises the steps that in the process that the staff is close to the face recognition device, whole-body images of more than two staff and the distance between the staff and the face recognition device are randomly selected, the height of the staff is calculated through image recognition during face recognition and compared with the staff information preset for the staff, and if the comparison is successful, the height detection is passed.

Need not additionally set up other equipment, can accomplish height and detect and compare when discerning face information through face identification device.

Further, the whole-body images of more than two workers are randomly selected, the whole-body images of the workers are shot through a face recognition camera of the face recognition device, and the distance between the workers and the face recognition device is detected through an infrared distance measuring sensor on the face recognition device.

The infrared distance measuring sensor is a commonly used distance measuring device, and height detection can be completed while face recognition is completed through one piece of equipment of the face recognition device only by additionally arranging the device on the face recognition device, and the detection process does not influence the face recognition process of workers.

Furthermore, the on-site production management module comprises an underground control unit, and the underground construction process is monitored through the underground control unit, and the monitoring position is dynamically moved along with the construction progress.

For underground construction operation, the specific construction working condition of underground construction can be monitored more accurately by dynamically moving the monitoring position.

Drawings

Fig. 1 is a logic block diagram of a construction management system according to a first embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

the reference numbers in the drawings of the specification include: the system comprises a field production management module 1, a tower crane anti-collision control unit 11, an underground control unit 12, an access control unit 13, a spraying control unit 14, an environment monitoring module 2, a video monitoring module 3 and a reporting module 4.

Example one

The embodiment is basically as shown in the attached figure 1: the intelligent management method for building construction in the embodiment is based on a construction management system constructed based on a BIM model, and the construction management system in the embodiment comprises an environment monitoring module, a video monitoring module, a reporting module and a field production management module which are connected with one another, wherein the production management module comprises a tower crane prevention and control unit, an underground control unit, an entrance guard control unit and a spraying control unit.

The environment monitoring module monitors the environment information such as noise, dust and the like of the engineering construction site environment in real time through the existing hardware such as the environment sensor and the like, and analyzes and displays the construction site environment information through the existing software system and the hardware display equipment. All-weather outdoor raise dust monitored control system except can realizing the raise dust control, can also monitor environmental factor such as PM2.5, PM10, noise, ambient temperature, wind speed, and each environmental sensor installs at different test points, and the test data of each test point directly uploads the monitoring backstage through wireless communication, has saved environmental protection department's monitoring cost greatly, improves monitoring efficiency. The system can also be linked with various pollution treatment devices to achieve the aim of automatic control. In addition, the environment monitoring module can visually present the weather conditions and the air quality of the test points through the display device, wherein the weather conditions at least comprise temperature, humidity and noise, and the weather conditions comprise weather conditions dynamically displayed on the same day and three days in the future. And the air quality is also presented by two parts of a historical air quality analysis and a current twenty-four hour air quality data change chart. Similarly, the dynamic change of each parameter item along with the time is presented through the display device. More importantly, the environment monitoring module can obtain corresponding prompt results according to the change of each environment factor data, and display and transmit the prompt results to the reporting module. For example, when the noise is 99 dB, the prompt results in "loud noise! Please note that noise reduction processing is done. "

The video monitoring module comprehensively utilizes the prior technologies such as videos, networks, communication and the like to check and monitor the site construction condition in real time. The on-site conditions of key important parts, key areas and the like in each area of the construction site can be monitored in real time for twenty-four hours through the cameras arranged at all positions of the construction site and the displays used for receiving the pictures shot by the cameras and playing and storing the pictures in real time. There is a clear display of each person entering the surveillance area, the time of entry, the time of departure, and the activity in the surveillance area. The omni-directional camera can monitor the condition in a larger range. The person on duty can monitor the condition of each monitoring point simultaneously in the room on duty. If there is an abnormality, necessary measures can be taken immediately to prevent an unexpected situation from occurring.

And the reporting module is used for receiving the reporting information transmitted by each module and controlling an auxiliary device connected with the system to perform corresponding operation according to the reporting information.

And the field production management module is used for focusing on a construction field and realizing field production fine management. The BIM model is used as a carrier, the pipeline section structure is used as a support, the standard process is used as a preset tracking standard, and the fast planning, dynamic control, timely adjustment, on-time completion, cost reduction and efficiency improvement are realized.

The field production management module is used for constructing a network platform based on the existing BIM model, and can directly present daily data through the network platform on the basis of a three-dimensional model constructed by the BIM model and used for representing a construction field, so that summary statistical data can be provided for a production case, and the conference efficiency is improved. Various achievements in the BIM model can be output to be reported PPT, and reporting to a company is facilitated. Based on the BIM model, the management of the total, month and Wednesday plans is opened, the total plan can be disassembled into a month plan through a flowing water section, and the month plan can be disassembled into a week plan; the plans are linked layer by layer from top to bottom. The completion condition of the weekly plan can be synchronously rolled back to the monthly plan, the monthly plan can be rolled back to the general plan, and whether the whole plan has deviation can be directly controlled through the general plan. In this embodiment, through the on-site production management module, more than 50 index data can be monitored synchronously, and the concrete index analysis of the project across the country of the company can be performed.

In addition, the field production management module can automatically capture production management data of each project, such as construction state, milestone progress, start-up, shutdown and the like, through the existing function setting of the BIM model; various data on site are automatically collected, and a construction log is generated by one key; and comprehensively ranking the project production management system and management personnel, and selecting excellent teams and individuals.

More importantly, the on-site production management module comprises a tower crane anti-collision control unit. According to the prior art, tower crane monitoring, group tower anti-collision, tower crane area protection and hook visualization can be realized through the tower crane anti-collision control unit.

The tower crane anti-collision control unit clearly displays the operation condition of the hoisting mechanical equipment in real time through the existing acquisition device and the display equipment connected with the tower crane anti-collision control unit, and the main display content of the tower crane anti-collision control unit is as follows: lifting capacity, lifting moment, lifting height, amplitude, rotation angle, wind speed and multiplying power.

The tower crane anti-collision control unit is characterized in that the tower crane anti-collision control unit is connected with a monitoring device and a reminding device, and when the monitoring device acquires reminding parameters and reaches a preset reminding parameter range, the reminding device can send out acousto-optic signals to remind a driver of paying attention to operation and driving safely. The reminding parameters comprise: weight, moment, height, amplitude, gyration, and each parameter can configure reminding parameter threshold alone.

The tower crane anti-collision control unit has an overload protection function through the existing monitoring equipment and the reminding device which are connected with the tower crane anti-collision control unit. In this embodiment, when the load lifting capacity reaches rated load lifting capacity 100% -110%, the tower crane anticollision control unit judges that the overload action takes place, and the tower crane anticollision control unit can control reminding device and send continuous clear reputation warning signal to the driver automatically. Through the anti-collision control unit of the tower crane, the hoisting mechanical equipment connected with the anti-collision control unit can be controlled to realize the automatic control of dangerous behaviors, the lifting of the lifting hook is limited, the movement in the amplitude direction is increased, and the falling of the lifting hook is only allowed or the movement in the amplitude direction is reduced.

The tower crane anti-collision control unit is characterized by comprising a tower crane anti-collision control unit and a wind speed sensor, wherein the tower crane anti-collision control unit is connected with the wind speed sensor through the environment sensor, the environment sensor is a wind speed sensor and has a wind speed alarm function, and if the wind speed is too high and the safe operation of a tower crane is influenced, the tower crane anti-collision control unit sends out an acousto-optic alarm signal through a reminding device connected with the tower crane anti-collision control unit to remind. Usually, when the wind speed is 12m/s, the tower crane cannot normally work, but in this embodiment, the early warning work is started when the tower crane wind speed is 10m/s, the current wind speed change situation is predicted aiming at the stored historical wind speed change situation in the same time period, when the current wind speed change trend is the same as the historical wind speed change trend, a signal for stopping the tower crane work is started to be sent out, if the wind speed rises from 10m/s to 11m/s in a short time (within 5-20 minutes in this embodiment), even if the historical wind speed change situation in the same time period is not the rising situation, an emergency danger avoiding preparation notification needs to be sent out, when the emergency danger avoiding notification is sent out for a short time, if the temporary start notification is not sent out after the wind speed rises to 12m/s all the time, the wind speed prediction operation needs to be carried out every half hour in the time period of the temporary start notification, and sending a normal tower crane operation recovery notice until the wind speed is reduced to be below 9 m/s. By doing so, various problems caused by wind speed influence can be effectively avoided, and personnel and equipment safety is fully guaranteed.

The tower crane anti-collision control unit is connected with the reporting module through the field production management module, and sends all operation records, historical data and illegal operation reporting information of all equipment connected with the tower crane anti-collision control unit to the field production management module and the reporting module, and can be completely displayed on a network platform of the field production management module. Through seamless butt joint with the network platform, the operation condition of the tower crane can be remotely monitored in real time through the network platform.

In addition, the field production management module also comprises an access control unit which is used for controlling the access of a construction site, giving different authorization levels to different workers by utilizing the prior art, carrying out access authorization, and taking the existing modes such as the existing IC card, NFC and face recognition as access passing modes of different authorization access levels.

Compared with the existing BIM model, in the embodiment, the field production management module further comprises an underground control unit, the underground control unit is built by adopting the BIM model, and on the basis of the building three-dimensional information model, constructors can comprehensively know the underground construction condition. The BIM model can automatically reflect the cross collision condition of the pipelines and the space geometric relationship of the building structure, can clearly express the underground construction condition, and can avoid the problems of unnecessary economic and energy consumption loss and the like due to reworking caused by unreasonable collision of the pipeline layout.

By using the construction management system, the intelligent management method for building construction in the embodiment specifically includes the following steps:

through the existing content of the BIM in the on-site production management module, according to standard processes, personnel, machinery and materials in a construction site are managed, Beidou satellite navigation signals are additionally received by utilizing the management content of the existing BIM, the Beidou satellite navigation is utilized, the vehicle machinery on a construction site can be positioned and managed, and the three-dimensional coordinate value of a working part is accurately calculated by combining a sensor and the existing construction machinery algorithm model. By dynamically tracking the construction site vehicle machines, the working state of each engineering vehicle can be visually seen, vehicles which are not in the working state are dispatched, the optimal allocation of vehicle machine resources in construction can be coordinated, and the utilization rate of the engineering vehicles is improved. Through the information input system, labor personnel information data, mechanical equipment information data and material information data are effectively integrated, and management systematization of the labor personnel information, the mechanical equipment information and the material information is achieved.

Through tower crane anticollision control unit, when exceeding and predetermineeing the warning parameter range, start the reminding device who is connected with it, remind operating personnel to carry out the tower crane operation safely, guarantee hoisting machinery equipment, tower crane and operating personnel's safety. The acquisition device connected with the tower crane anti-collision control unit acquires and sends reminding parameters to the tower crane anti-collision control unit in real time, and the reminding parameters comprise weight, moment, height, amplitude and rotation. The reminding mode of the reminding device is an acousto-optic mode. When an operator has illegal operation, the tower crane control unit sends the illegal operation record as illegal operation reporting information to the field production management module and the reporting module, and all information of real-time operation can be seen through a network platform of the field production management module.

Meanwhile, the video monitoring module monitors the display pictures of each test point in real time through the cameras installed on each test point and the displays connected with the cameras, extracts the display pictures appearing in the time periods corresponding to the test points where the reporting information is received by the reporting module and stores the extracted display pictures in the display pictures to be processed, and is convenient for tracing and recording the working conditions of the test points which send the credible reporting information in time after artificial determination. The reported information in this embodiment not only includes the reported information of the illegal operation transmitted by the tower crane collision avoidance control unit, but also includes the abnormal information transmitted by each unit of other modules.

Meanwhile, the environment monitoring module monitors PM2.5, PM10, noise, environment temperature, wind speed and other environment factors in real time through environment sensors arranged at various positions, when PM2.5 is found to exceed a preset value, various spraying devices arranged in a construction site are started to work through a spraying control unit in the on-site production management module, dust emission is reduced through sprayed liquid, and the spraying devices are stopped to work until PM2.5 is detected to be smaller than the preset value. Therefore, the construction environment can be effectively ensured to be always in a proper environment, and energy can be saved as much as possible.

PM2.5 is fine particles, also called fine particles and fine particles, and refers to particles with the aerodynamic equivalent diameter of less than or equal to 2.5 microns in ambient air. It can suspend for a long timeIn air, the higher the content concentration in air, the more serious the air pollution. Although PM2.5 is only a component of earth's atmospheric composition in small amounts, it has a significant effect on air quality and visibility, among other things. Compared with the thicker atmospheric particulate matters, the PM2.5 has small particle size, large area, strong activity, easy attachment of toxic and harmful substances (such as heavy metals, microorganisms and the like), long retention time in the atmosphere and long conveying distance, thereby having larger influence on human health and atmospheric environmental quality. The PM2.5 preset value in the embodiment adopts the daily average value of 75 mu g/m in the air quality standard³On the basis of the construction method, the method is obtained by combining the particularity of the geographical environment of the construction site. The PM2.5 preset value of the implementation is 69-75 mu g/m³. Except triggering the start spray set through reaching the default, environmental monitoring module still monitors prestoring historical data in the appointed fine particles of while section, appointed fine particles for the great fine particles of job site place region environmental impact, for example in Kunming, pollen can monitor as appointed fine particles as the fine particles of conventional PM2.5 monitoring like this, avoids its influence to staff's production. More importantly, except for real-time monitoring, the environment monitoring module predicts all fine particulate matters and specified fine particulate matters in PM2.5 as well as monitoring and predicting the wind speed by the tower crane anti-collision control unit, and if the prediction result is that the PM2.5 can rise to a preset value in a certain time period, the spraying device is started in advance for spraying and dedusting half an hour to 40 minutes in advance.

Meanwhile, the environment monitoring module monitors the environmental factors such as PM10, noise, environmental temperature and the like in real time through various existing environment sensors, when the actual measurement parameters of various environmental factors exceed preset values, the environment monitoring module forms corresponding description information as report information and sends the report information to the reporting module, and the reporting module reminds that the corresponding environmental factors are in abnormal conditions through a display device, a display, a portable terminal of constructors and a network platform of a field production management module which are connected with the reporting module.

Meanwhile, the access control unit compares the personnel information according to a preset access control passing mode by identifying various access control authorization levels, opens access control release if the comparison is successful, forms report information and sends the report information to the report module if the comparison is failed, and simultaneously displays the picture information through a network platform of the field production management module. Can effectively avoid irrelevant personnel to enter into the job site.

In addition, when underground construction operation is performed, the underground control unit monitors the underground construction operation environment in real time by controlling the monitoring equipment connected thereto.

In this embodiment, a construction management system is constructed on the basis of the existing BIM model, and intelligent management is performed on a construction site. The method solves the problem that the existing construction site management can not fully utilize the existing system to carry out intelligent management, and can fully combine the site environment of the construction site by utilizing the existing system to carry out intelligent management.

Example two

In this embodiment, a monitoring position adjustment table is preset in the underground control unit. When the construction site is loose in soil and needs to be tamped and backfilled, the underground control unit dynamically moves the monitoring position of the monitoring equipment according to the backfilling progress through the monitoring equipment connected with the underground control unit, can transmit the underground construction condition to the on-site production management module through the underground control unit in real time, and displays the underground construction condition through the network platform. In the embodiment, in order to better control the accurate movement of the monitoring equipment installed underground, the track which can be wound is timely arranged along the tunneling direction in the process of tunneling along with underground excavation, scales are arranged on the track, and the bottom end of the monitoring equipment is connected with a rail car which can travel on the track. The monitoring position of the monitoring device is moved by controlling the movement of the rail car on the track. When soil is backfilled, the rail car drives the rail to wind in the process of moving outwards, so that the rail car also drives the wound rail to wind and complete the winding after the excavation pit is completely backfilled. This embodiment not only can be accurate the control position of adjusting supervisory equipment, can also retrieve track and railcar automatically.

EXAMPLE III

In this embodiment, a mode of identifying a worker who is present in a construction site for seven days or less by an IC Card (Integrated Circuit Card, also referred to as a smart Card) is used as an access control passing mode. Workers who appear on a construction site for more than seven days are used as an access control passing mode through an NFC (Near Field Communication) identification mode. And for workers with less than or equal to seven days but inconvenient operation, an NFC identification mode is adopted as an access control passing mode. For the access control of a particularly important position, a face recognition mode is adopted as an access control passing mode. The biggest difference from the prior art is that the face recognition mode in the embodiment needs to assist in height detection, namely, a height calculation rule is preset on the face recognition device, other components do not need to be additionally added, and only two or more pictures of the whole body image of a worker need to be taken when the worker approaches the face recognition device, and the height of the recognized person can be calculated while face recognition calculation is carried out according to the distance between the worker and the face recognition lens. Therefore, the accuracy of face recognition can be properly reduced, and the operator can also finish comparison operation through face recognition and height recognition when the operator is a local face polluted by dust. Therefore, the system is more suitable for being used in a construction site, can reduce the setting cost by reducing the face recognition precision, and can achieve the purpose of authorized management of entrance guard.

In this embodiment, start to take a candid photograph whole body image to the staff when the staff is 5 meters away from face recognition device, take a candid photograph many whole body images in succession with speed one per second, when the staff walks to face recognition device's distance within a meter and carry out face recognition. Because the positions where the workers stand during the face recognition process are arranged in advance, the distances between the workers are determined, and the distances between the workers from far to near to the face recognition device are also determined in advance. Therefore, when the worker performs face recognition, the distance between the positions of the worker when two adjacent whole-body images are shot can be recognized through three selected whole-body images, the body length of the worker in the corresponding whole-body image can be recognized through the existing image recognition technology, and the actual height of the worker can be calculated through a triangular side length calculation formula. Because such calculated amount is very little, can carry out height discernment in face identification, compare this staff's face information and height information with preset personnel's information, can pass through verification on the contrast, open entrance guard. Just because of the assistance of height detection, the scanning point of the face recognition at the stage can be reduced to sixty percent to seventy-five percent of the original scanning point, the precision requirement on the face recognition device is slightly reduced, and the input cost is greatly reduced.

Example four

In this embodiment, when the reporting module performs the abnormal condition reminding, the corresponding emergency device can be controlled to start through the emergency control unit connected with the reporting module. In this embodiment, the emergency device includes an air conditioner, a silencing enclosure, a dehumidifier, a humidifier, and the like. When the temperature is abnormal, the air conditioner is started to reduce or increase the temperature. When the noise exceeds the standard, the noise reduction cloth is opened to carry out noise reduction treatment on the space where the operator is located. When the humidity is too high or too low, the dehumidifier or the humidifier is started to work respectively. Therefore, the construction site can meet the construction requirements and can meet the comfort level of the human body as much as possible. Can effectively reduce the possibility of occupational diseases. More importantly, in this embodiment, dehumidifier and humidifier all set up on the amortization encloses cloth, simple to operate, and do not occupy additional space, the emergency equipment of being convenient for place and install, be convenient for in time launch emergency equipment.

EXAMPLE five

In this embodiment, the environment monitoring module combines the wind speed and the weather condition, and predicts the wind speed change through a preset wind speed change recording table to obtain a wind speed change prediction result and sends the wind speed change prediction result to the tower crane anti-collision control unit. And the tower crane anti-collision control unit controls the hoisting mechanical equipment and the tower crane to stop for a period of time according to the current wind speed transmitted from the wind speed sensor and the wind speed change prediction result transmitted from the environment monitoring module and then starts again. By the method, the operation of the hoisting machinery equipment and the tower crane can be accurately controlled, and the construction time can be saved to the maximum extent on the premise that the tower crane and the hoisting machinery are fully protected.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.