CN212559172U - Three-dimensional monitoring and linkage system of 5G tower crane - Google Patents

Abstract

The utility model discloses a 5G tower crane three-dimensional monitoring and linkage system, which comprises a travel limiter, a host, a display screen, a charger, front-end equipment, a first monitoring device deployed at a fixed position and a second monitoring device deployed at a mobile position of a construction site; the utility model provides a plurality of monitoring visual angles in the vertical direction, the horizontal direction and other directions for the tower crane driver through the high-definition cameras at fixed positions and moving positions, helps the tower crane driver to have clear cognition on the condition of loading and unloading goods by the lifting hook and the peripheral condition during the tower crane operation, ensures the safety of the tower crane operation to the maximum extent, and provides the strongest support for the safety operation of the tower crane driver; through point-to-point communication of 5G CPE + SD-WAN, the flexibility of network connection between the camera and the tower crane cab screen is improved, and the time delay of network transmission is shortened.

Description

Three-dimensional monitoring and linkage system of 5G tower crane

Technical Field

The utility model relates to a tower crane stereoscopic monitoring technical field, concretely relates to 5G tower crane stereoscopic monitoring and linked system.

Background

The visual product of current tower crane only erects the camera through the dolly in tower crane lifting hook top, and the help tower crane driver obtains the visual angle of vertical angle. However, this method only helps the tower crane driver to observe from the overlooking angle and lacks the video information support of multiple angles such as horizontal angle, so it is difficult to have clear and intuitive cognition on the condition of loading and unloading goods by the tower crane hook and the condition around the tower crane during operation, and the tower crane operation has potential risks.

The tower crane driver can obtain the camera image through wired and wireless communication modes. The wired communication mode is that a cable is connected with a camera and a cab screen, so that the camera image is transmitted back to the tower crane cab; the wireless communication mode adopts a wireless network bridge technology to realize point-to-point communication between the camera and the tower crane cab.

Wireless transmission is mainly carried out by using a wireless bridge to transmit, a communication bridge is built between two or more networks, and the wireless bridge can be used for connecting two or more independent network segments, wherein the independent network segments are usually positioned in different buildings and are connected with networks with the distance of hundreds of meters to dozens of kilometers. The wireless bridge transmission system is generally composed of two or more wireless devices, and each device needs to have the capability of transmitting and receiving wireless signals due to the bidirectional transmission of data. The working principle is as follows: the network bridge takes air as a medium to propagate signals, and the network bridge at one end converts the signals in the network cable into wireless electromagnetic wave signals and directionally transmits the wireless electromagnetic wave signals to the air; the network bridge at the other end receives the wireless electromagnetic wave signals in the air and finally converts the wireless electromagnetic wave signals to be presented on a display screen of the operation room in a video information mode.

In view of tower crane monitoring, the following two visual products of the existing tower crane exist: firstly, erecting a camera at the foremost end of a suspension arm and transmitting a picture back to a tower crane cab through a cable; the second is to erect cameras at the trolley of the tower crane and the foremost end of the suspension arm and transmit the pictures back to the cab of the tower crane through cables. The picture presented by the first tower crane visualization solution still has the possibility that the visual field is blocked; although the picture that the second scheme appears does not have the possibility that the field of vision is sheltered from, the visual angle is single relatively, lacks the control picture of horizontal direction and other a plurality of directions, will lead to the tower crane driver to lack the direct-viewing cognition to the peripheral environment condition when lifting hook goods handling condition and tower crane operation, causes the incident hidden danger.

Considering the transmission mode: the cable is wired connection, and its length and the mode of fixing at the tower crane are definite, therefore under the tower crane motion state, bad weather or unexpected damage etc. the advantage in the aspect of installation, investigation maintenance and its flexibility of wired connection is lacked.

The wireless bridge adopts a microwave communication mode and only works in two frequency bands of 2.4G and 5.8G. The 2.4G wireless network bridge is a current mainstream frequency band, has good compatibility and diffraction capability, but has poor anti-interference performance, and is easily interfered by wireless signals transmitted by other Wi-Fi equipment particularly when used in an urban area; the 5.8G channel is relatively pure, has relatively good anti-interference capability and long transmission distance, but has poor diffraction capability. Therefore, in a complex environment, the wireless network bridge is easily interfered by various external factors.

The antenna is used for transmitting and receiving wireless signals, is an important accessory of the wireless network bridge, and is installed to ensure that no barrier exists in a transmission line of the wireless network bridge, so that the antenna is installed by adjusting a proper angle and height, a line-of-sight path is ensured to be kept between the transmitting antenna and the receiving antenna, and a communication link is ensured to be normal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's 5G tower crane stereoscopic monitoring and linked system, under 5G network and 5G CPE + SD-WAN combination equipment's communication mode's support, the video information that provides a plurality of fixed position visual angles and shift position visual angle for the tower crane driver assists the tower crane driver to carry out the operation.

In order to achieve the above object, the utility model adopts the following technical scheme: the system comprises a stroke limiter, a host, a display screen, a charger and front-end equipment; the stroke limiter is fixed at the position of the winch and connected with a height sensor of the tower crane in parallel, and the distance parameter between the lifting hook and the lifting arm is read; the host and the display screen are arranged in the tower crane cab; the host comprises host side SDWAN equipment, a host side 5G CPE, a host side display module, a host side charging module, a host side network video recorder module and a host side mainboard provided with a Lora module; the front-end equipment is erected on the tower crane trolley; the front-end equipment comprises a front-end camera, a front-end charging module, a front-end mainboard provided with a Lora module, front-end SDWAN equipment and front-end 5G CPE; the charger is erected on the crane jib; the charger charges the front-end charging module in a contact charging mode; the charger is directly connected with the host charging module through a cable; the display screen is connected with the host end display module in a direct connection mode through an HDMI (high-definition multimedia interface) line; the host end network video recorder module is connected with an LAN port of host end SDWAN equipment through a network cable, the host end 5G CPE is connected with a WAN port of the host end SDWAN equipment, and video streams of pictures shot by the front end camera are pushed to a configured video platform; the front end mainboard receives distance data between a lifting hook and a lifting arm, which is sent by an antenna of a Lora module on the main board of the main machine end mainboard, through the antenna of the Lora module, adjusts the focal length of a front end camera in real time according to a data result, transmits video stream of a picture to the SDWAN equipment of the main machine end through front end 5G CPE by utilizing the SDWAN equipment of the front end, and displays the video stream on a display screen of a tower crane cab through a display module of the main machine end;

furthermore, the system also comprises a plurality of monitoring devices I which are deployed at fixed positions of a construction site; the monitoring equipment adopts a ball machine or a gun machine; the ball machine or the gunlock transmits the video pictures to a streaming media server where the cloud video platform is located through a 5G network;

furthermore, the system also comprises a plurality of monitoring devices II which are deployed at the mobile positions of the construction site; AI glasses are adopted as the monitoring equipment II; the AI glasses transmit the video pictures to a streaming media server where the cloud video platform is located through a 5G network.

After the structure of the oil adding device is adopted, a 5G tower crane three-dimensional monitoring and linkage system, have following advantage:

1. fully utilizing monitoring resources: the original fixed position camera only used for monitoring the construction site boundary is used for assisting the tower crane operation, so that the utilization rate of monitoring resources is effectively improved;

2. promote tower crane operating efficiency: by wearing AI glasses for the ground auxiliary hanging personnel and enabling the tower crane driver to obtain video pictures with the same visual angle as the ground auxiliary hanging personnel through the 5G network, the communication cost of the two parties can be reduced, and the improvement of the operation efficiency is facilitated;

3. the operation safety of the tower crane is guaranteed: the tower crane driver can carry out tower crane operation by referring to pictures transmitted by visual angles in multiple directions including a vertical visual angle and a horizontal visual angle, so that the tower crane driver can be helped to know the cargo loading and unloading conditions of a tower crane hook and the conditions around the tower crane during operation, and the tower crane operation risk is reduced to the maximum extent;

4. the effect of reducing the time delay is realized by adopting a mode of combining equipment of 5G CPE and SD-WAN and utilizing the 5G network technology and the advantages of SD-WAN; and the tower crane front-end camera is applied to the tower crane in an operating state or a static state, so that the flexibility of network connection between the front-end camera of the tower crane and a cab screen is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the installation of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a specific flowchart of the 5G CPE accessing the core network.

Description of reference numerals:

1. a travel limiter; 2. a tower crane winch; 3. a charger; 4. a tower crane trolley; 5. a tower crane jib; 6. a front-end device; 7. a tower crane cab; 8. a host; 9. a display screen; 10. a video platform; 11. A tower crane hook; 6-1, a front-end camera; 6-2, front end 5G CPE; 6-3, a front-end charging module; 6-4, a front end main board; 6-5, front-end SDWAN equipment; 8-1, a host end mainboard; 8-2, a host side SDWAN device; 8-3, a host end 5G CPE; 8-4, a host charging module; 8-5, a host end display module; 8-6, a host end network video recorder module.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-2, the technical solution adopted by the present embodiment is: the system comprises a stroke limiter 1, a host 8, a display screen 9, a charger 3 and front-end equipment 6; the stroke limiter 1 is fixed below the tower crane winch 2; the host machine 8 and the display screen 9 are both arranged in the tower crane cab 7; the front-end equipment 6 is erected on the tower crane trolley 4; the charger 3 is erected on a tower crane boom 5;

a height sensor is arranged on the stroke limiter 1; the travel limiter 1 is used for calculating the distance between a tower crane hook 11 and a tower crane boom 5, the travel limiter 1 is directly connected with a host machine 8 in a tower crane cab 7 through a cable, and transmits an electric signal acquired by a height sensor to a host machine end main board 8-1 and converts the electric signal into the actual distance (unit meter) between the tower crane hook 11 and the tower crane boom 5;

the host 8 comprises host side SDWAN equipment 8-2, a host side 5G CPE 8-3, a host side display module 8-5, a host side charging module 8-4, a host side network video recorder module 8-6 and a host side mainboard 8-1 provided with a Lora module;

the front-end equipment 6 comprises a front-end camera 6-1, a front-end charging module 6-3, a front-end mainboard 6-4 provided with a Lora module, front-end SDWAN equipment 6-5 and front-end 5G CPE 6-2;

the display screen 9 is connected with the host end display module 8-5 in a manner of direct connection of a bidirectional HDMI line and displays a picture shot by the front-end camera 6-1; the host end network video recorder module 8-6 is connected with the LAN port of the host end SDWAN device 8-2 through a network cable, then the host end 5G CPE 8-3 is connected with the WAN port of the host end SDWAN device 8-2, and the video stream of the picture shot by the front end camera 6-1 is pushed to the configured video platform 10 for monitoring and management in a construction site;

the charger 3 charges the front-end charging module 6-3 in a contact charging mode; the charger 3 is directly connected with the host-end charging module 8-4 through a cable to provide power support for the front-end equipment;

the front end mainboard 6-4 receives distance data of the tower crane hook 11 from the tower crane boom 5 sent by the Lora module antenna on the host end mainboard 8-1 through the antenna of the Lora module and adjusts the focal length of the front end camera 6-1 in real time according to the data result, so that a tower crane driver can obtain a clear picture in the vertical direction of the tower crane hook 11 under the condition that the tower crane hook 11 moves up and down, and transmits the video stream of the picture to the host end SDWAN equipment 8-2 through the front end 5G CPE 6-2 by using the front end SDWAN equipment 6-5, and the video stream is displayed on a display screen 9 of a tower crane cab through the host end display module 8-5;

in this embodiment, referring to fig. 3, a specific process of initiating a session between a 5G user terminal and a 5G network is as follows:

(1) UE sends RRC connection request message to gNB-DU;

(2) the gNB-DU receives the RRC message and, if the UE is in an allowed state, initiates the INITIAL UL RRC MESSAGE TRANSFER message including the corresponding underlying configuration for the UE in the F1AP interface and transmits to the gNB-CU. The initial UL RRC MESSAGE includes C-RNTI allocated by the gNB-DU;

(3) the gNB-CU assigns the gNB-CU UE F1AP ID to the UE and generates an RRC CONNECTION SETUP message to the UE. The RRC message is encapsulated in the F1AP DL RRC MESSAGE TRANSFER message;

(4) the gNB-DU sends an RRC CONNECTION SETUP message to the UE;

(5) the UE sends an RRC CONNECTION SETUP COMPLETE message to the gNB-DU;

(6) the gNB-DU encapsulates the RRC message in an F1AP UL RRC MESSAGE TRANSFER message and sends it to the gNB-CU;

(7) the gNB-CU sends an INITIAL UE MESSAGE MESSAGE to the AMF;

(8) the AMF sends an initial UE context establishment request message to the gNB-CU;

(9) the gNB-CU sends a UE context establishment request message to establish the UE context in the gNB-DU; in this message, it may also encapsulate the RRC SECURITY MODE COMMAND message;

(10) the gNB-DU sends RRC SECURITY MODE COMMAND information to the UE;

(11) the gNB-DU sends the UE CONTEXT SETUP RESPONSE message to the gNB-CU;

(12) the UE responds with an RRC SECURITY MODE COMPLETE message;

(13) the gNB-DU encapsulates the RRC message in an F1AP UL RRC MESSAGE TRANSFER message and sends it to the gNB-CU;

(14) the gNB-CU generates and encapsulates an RRC CONNECTION Reconfiguration message in an F1 APDL RRC MESSAGE TRANSFER message;

(15) the gNB-DU sends an RRC CONNECTION Reconfiguration message to the UE;

(16) UE sends RRC CONNECTION RECONFIGURATION COMPLETE message to gNB-DU;

(17) the gNB-DU encapsulates the RRC message in an F1AP UL RRC MESSAGE TRANSFER message and sends it to the gNB-CU;

(18) the gNB-CU sends an INITIAL UE CONTEXT SETUP RESPONSE message to the AMF, so far that the UE (5G CPE) completes the access flow, and the 5G core network also completes the registration information for the UE.

After the information registration is completed, the 5G CPE can help the SDWAN equipment to access through the 5G network; in the specific embodiment, the SDWAN device adopts a China Unicom SD-WAN-based intelligent private line selection, the SDWAN intelligent private line selection centralized control platform is provided with three functions of input, arrangement, resource management and the like at the upper layer of an intelligent private line selection controller, and for a control layer, the SDWAN intelligent private line selection controller realizes the conversion of application layer service data into network configuration which can be identified by forwarding equipment and completes the automatic issuing configuration of the network configuration by combining a configuration template; for data forwarding, the controller can provide traffic forwarding of a data plane, and tunnel encryption networking services such as IPSEC (Internet protocol Security) spanning a network can be realized; two types are currently included, client side terminal box equipment and operator side gateway equipment;

for the service model, the SDWAN device establishes an IPSEC tunnel with a gateway through a 5G network for communication, and both sides are provided with public network addresses; between gateways, a routing network side configures uniformly planned private network addresses through a communicated SDWAN platform, establishes BGP routing and opposite end intercommunication, specifically, a front gateway transmits to a convergence gateway (serving as CE of an SDWAN network) through IBGP, the convergence gateway transmits to PE through EBGP, VPN isolation is realized through VLAN, and a backbone side transmits customer routing and data through a CUII network.

The system also comprises a plurality of monitoring devices I deployed at fixed positions on a construction site; the monitoring equipment, namely, the monitoring equipment generally comprises ball machines and gun machines of various brands and models; the ball machine and the gunlock transmit the video pictures to a streaming media server where the cloud video platform is located through a 5G network; the tower crane driver can utilize 5G electronic communication equipment (both android and IOS) to log in a cloud video platform through APP, take streams from a streaming media server and further watch corresponding video pictures on the video platform, and can control the directions and angles of a plurality of cameras (not including a gun) through the cloud video platform to follow a lifting hook which continuously moves in the operation, so that the requirements of multi-angle and multi-dimension tower crane operation monitoring are met;

the system also comprises a plurality of monitoring devices II deployed at the mobile positions of the construction site; the monitoring equipment generally includes AI glasses of various brands and models; the AI glasses can transmit the video pictures to a streaming media server where the cloud video platform is located through a 5G network; the tower crane driver can utilize 5G's electronic communication equipment (tall and erect and all can the IOS of ann), through APP login high in the clouds video platform's mode, gets the stream and then can watch corresponding video picture on the streaming media server at video platform place. The AI glasses are usually worn by a tower crane auxiliary lifting person, and the tower crane auxiliary lifting person has the responsibility of monitoring the condition that workers load and unload cargos with the carved lifting hooks, so that in a mobile scene, the AI glasses are used for returning video of relevant tower crane operation information in a first visual angle mode;

based on tower crane monitoring information of vertical direction to and the monitoring information of building site fixed position maneuverability visual angle and the tower crane auxiliary lifting personnel wearing AI glasses's monitoring information, can provide a video information to the tower crane operation all-round three-dimensional multidimension for the tower crane driver. Meanwhile, tracking of a lifting hook visual angle by a tower crane auxiliary lifting person and adjustment of a tower crane driver on the angle of a fixed position camera can effectively form a linkage system, and video picture tracking is carried out on information such as tower crane operation conditions and tower crane surrounding environment.

In the specific embodiment, the cloud video platform is deployed on the streaming media server and can support simultaneous playing of a plurality of mainstream video protocols including national standard protocols; the 5G tower crane three-dimensional monitoring and linkage system helps a tower crane driver to know the cargo loading and unloading conditions of a lifting hook and the conditions around the tower crane during operation by utilizing the video information of a plurality of fixed positions and moving positions, effectively avoids operation risks and reduces the accident probability of the tower crane; the network bridge belongs to a communication device which can carry out point-to-point, point-to-multipoint, relay transmission and reflection transmission by utilizing a wireless network; the 5G frequency band belongs to ultrahigh frequency, has short wavelength, large bandwidth and strong penetrating power, but has large loss and short transmission distance; the SD-WAN technology has a wide transmission distance in a wide geographical range, is a new technology capable of replacing traditional wide area network lines (MPLS-VPN, IPSEC-VPN and the like), can solve the problems of instability and high cost of special lines of the traditional Internet lines in the long-distance transmission process, and can meet the instantaneity and instantaneity of future lines for application; the SD-WAN is connected into the network through the 5G CPE to realize point-to-point communication.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (3)

1. A three-dimensional monitoring and linkage system of a 5G tower crane is characterized by comprising a stroke limiter, a host, a display screen, a charger and front-end equipment; the stroke limiter is fixed at a winch of the tower crane, is connected with a height sensor of the tower crane in parallel, and reads the distance parameter between the lifting hook and the lifting arm; the host and the display screen are arranged in the tower crane cab; the host comprises host side SDWAN equipment, a host side 5G CPE, a host side display module, a host side charging module, a host side network video recorder module and a host side mainboard provided with a Lora module; the front-end equipment is erected on the tower crane trolley; the front-end equipment comprises a front-end camera, a front-end charging module, a front-end mainboard provided with a Lora module, front-end SDWAN equipment and front-end 5G CPE; the charger is erected on the crane jib; the charger charges the front-end charging module in a contact charging mode; the charger is directly connected with the host charging module through a cable; the display screen is connected with the host end display module in a direct connection mode through an HDMI (high-definition multimedia interface) line; the host end network video recorder module is connected with the LAN port of the host end SDWAN device through a network cable, the host end 5G CPE is connected with the WAN port of the host end SDWAN device, and video streams of pictures shot by the front-end camera are pushed to a configured video platform; the front end mainboard receives distance data between a lifting hook and a lifting arm sent by an antenna of the Lora module on the main machine end mainboard through the antenna of the Lora module, adjusts the focal length of a front end camera in real time according to a data result, transmits video streams of pictures to the main machine end SDWAN equipment through front end 5G CPE through the front end SDWAN equipment, and displays the video streams on a display screen of a tower crane cab through a main machine end display module.

2. The three-dimensional monitoring and linkage system for the 5G tower crane according to claim 1, wherein the system further comprises a plurality of monitoring devices I deployed at fixed positions on a construction site; the first monitoring equipment adopts a ball machine or a gun machine; and the ball machine or the gunlock transmits the video pictures to a streaming media server where the cloud video platform is located through a 5G network.

3. The 5G tower crane stereoscopic monitoring and linkage system according to claim 1, further comprising a plurality of second monitoring devices deployed at mobile positions of a construction site; AI glasses are adopted as the monitoring equipment II; the AI glasses transmit the video pictures to a streaming media server where the cloud video platform is located through a 5G network.

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