CN207135284U - Stevedoring remote control broadband Internet of Things radio signal coverage system - Google Patents
Stevedoring remote control broadband Internet of Things radio signal coverage system Download PDFInfo
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- CN207135284U CN207135284U CN201720931423.4U CN201720931423U CN207135284U CN 207135284 U CN207135284 U CN 207135284U CN 201720931423 U CN201720931423 U CN 201720931423U CN 207135284 U CN207135284 U CN 207135284U
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- antenna
- wireless signal
- running face
- access point
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Abstract
The utility model discloses a kind of stevedoring remote control broadband Internet of Things radio signal coverage system, belong to communication technical field, the system includes the wireless signal fixed access point being arranged on the traveling guide rail side place of portal jib crane, and is arranged on portal jib crane top and the wireless signal mobile access point installed with wireless signal fixed access point homonymy；Fixed antenna is installed at wireless signal fixed access point, the portable antenna moved with portal jib crane is installed at wireless signal mobile access point；The running face of the running face of portable antenna and the fixed antenna essentially coincides；By the radiation angular range for setting each antenna, wireless signal is constrained near antenna running face as far as possible on the basis of the reliable diffusion of guarantee wireless signal and reception, restrain the wireless crosstalk between different antennae running face and restrain the interference of external wireless signal, access point antenna sets barricade in the one or both ends parallel to running face, more strengthens antijamming capability.
Description
Technical field
Communication technical field is the utility model is related to, specifically, is related to a kind of stevedoring remote control broadband Internet of Things
Net radio signal coverage system.
Background technology
In the Container Yard of port and pier, it is often necessary to which container is attached to transport vehicle by moveable straddle truck from stockyard
On, or, container is discharged to stockyard from transport vehicle.The container handling operation of port and pier is grasped by manual site all the time
(operation and monitoring) is controlled to complete, there is security and efficiency, technology trends are to use long-range behaviour for scene manipulation
Control combines automatic manipulation, and is progressively transitioned into full-automatic manipulation.How one key problem of remote control is communication issue, i.e.,
Motion image information, voice messaging, operation and control information etc. are effectively and accurately carried out remote transmission.The operation of port area is long-range
It is roomy to manipulate the requirement band of communication system, HD video transmission can be carried out；It is required that reliability is high, meet Industry Control requirement.
The communication system of existing handling operation remote control uses cable communicating technology, because cable communicating technology disclosure satisfy that high bandwidth
Highly reliable transmission request message.But the crane of handling operation will move in the range of its all operation area, cable modem
Letter can bring many inconveniences, also need to be accomplished manually the work such as broken string wiring at the scene, however it remains security and efficiency are asked
Topic.
With the propulsion that machine substitute human labor technology develops, the remote control of equipment has obtained more and more extensive application.Due to
Harbour equipment has very strong mobility and locational uncertainty, is inevitable trend using wireless communication technology.It is but existing
Some wireless communication technologys are difficult to the signal covering system of the transmission request message for meeting that high bandwidth is highly reliable, particularly radio communication
The deployment of the system information transfer influence highly reliable on high bandwidth is very big, and existing covering system is difficult to meet to require.Prior art
In, notification number provides a kind of wireless shrouding system of electric power tunnel, publication No. for CN101641982B patent document
CN104301135A patent document provides a kind of electric power tunnel WIFI signal covering and device network management system and its side
Method, publication No. provide a kind of method of effectively covering highway for CN1279783C patent document, and these documents are carried
The signal covering system and method for the radio communication of confession can not all meet the high band needed for stevedoring remote control radio communication
Wide highly reliable transmission request message.The contact that this wireless communication system is used between equipment, so, it is a kind of Internet of Things
Net, and be a kind of industrial broadband Internet of Things therefore because of the highly reliable requirement of high bandwidth.
Utility model content
The purpose of this utility model is a kind of stevedoring remote control broadband Internet of Things radio signal coverage system of offer,
To meet the highly reliable transmission request message of high bandwidth needed for the Internet of Things of stevedoring remote control broadband.
To achieve these goals, stevedoring remote control broadband Internet of Things wireless signal provided by the utility model covers
Convering system includes being arranged on along the wireless signal fixed access point on the traveling guide rail side place of portal jib crane, and is arranged on
Portal jib crane top and the wireless signal mobile access point installed with wireless signal fixed access point homonymy；Wireless signal is fixed and connect
Fixed antenna is installed at access point, the portable antenna moved with portal jib crane is installed at wireless signal mobile access point；It is mobile
The biased error that the running face of antenna overlaps with the running face of the fixed antenna is not more than 3 meters；Using the running face of antenna as
The horizontal plane of antenna radiation pattern, the vertical of antenna radiation pattern is used as using the plane perpendicular to running face of center of antenna point excessively
Face, then:
Fixed antenna irradiation angle on the vertical plane of directional diagram meets formula α≤tan-1(W/2H), α is sufficiently small, prevents from going here and there
Disturb and disturb, fixed antenna radiation angle θ on the horizontal plane of antenna radiation pattern meets formula θ >=tan-1(L/H), θ is sufficiently large, protects
Demonstrate,prove the signal covering in course；Portable antenna radiation angle β on the vertical plane of directional diagram meets formula β≤tan-1(W/
2H), β is sufficiently small, prevents crosstalk and interference, portable antenna radiation angle γ on the horizontal plane of antenna radiation pattern meet formula γ >=
tan-1(L/H), γ is sufficiently large, ensures the signal covering in course；
Wherein, L is the length of wireless signal radiation zone of the single Container Yard of setting along the direct of travel of portal jib crane
Degree, W are the radiation zone width of setting, and H is the difference in height of portable antenna and fixed antenna.
In above-mentioned technical proposal, wireless signal covers work-yard eventually through antenna, and the radiation direction characteristic of antenna can
To find out from antenna radiation pattern, antenna radiation pattern refers at a certain distance from from antenna, relative field strength (the normalization mould of radiation field
It is worth) pass through two orthogonal plane patterns on antenna greatest irradiation direction with the figure of direction change, generally use
To represent.Main lobe width (also referred to as lobe width) is the physical quantity of the acuity in the greatest irradiation region for weighing antenna, takes day
Width between two half power points of the line major lobe of directional diagram, is represented with angle, herein also referred to as radiation angle.By setting each antenna
Radiation angle, it is attached to ensure that wireless signal in reliable diffusion and on the basis of receiving is constrained in antenna running face by wireless signal as far as possible
Closely, a long and narrow radiation zone is formed, strengthens signal of communication, restrains wireless crosstalk and restraint between different antennae running face
The interference of external wireless signal, so as to improve bandwidth and enhancing reliability.
Specific scheme is that fixed antenna is centrally located at the running face through the portable antenna center, described traveling
Face is through the central point of respective antenna and perpendicular to the ground.To ensure the reliable diffusion of signal and reception.
Another specific scheme is that portal jib crane both ends are mounted on portable antenna.
Preferable scheme is portable antenna and fixed antenna is directional aerial；Portable antenna is parallel to the one of running face
End is provided with barricade；Fixed antenna is being provided at both ends with barricade parallel to running face.
Directional aerial all shows as certain angle range of radiation in two orthogonal plane patterns.Pass through setting
Barricade is to stop that outer signals are disturbed, and because portable antenna is arranged on portal jib crane, the signal of its installation end is by straddle truck
Car stops, therefore need not set barricade.
Another preferable scheme is that portable antenna is omnidirectional antenna, and fixed antenna is directional aerial, and portable antenna is flat
Row is provided with barricade in one end of running face；Fixed antenna is being provided at both ends with barricade parallel to running face.
Another preferable scheme is portable antenna and fixed antenna is directional aerial；Portable antenna is parallel to traveling
The one end in face is provided with barricade；Fixed antenna is being provided at both ends with barricade parallel to running face.
Omnidirectional antenna, i.e., 360 ° of uniform or approaches uniformity spokes are shown as on figure (typically horizontally scheming) in one direction
Penetrate, that is, it is usually described non-directional, but certain angle range of radiation can be shown as on directional diagram normal thereto.
Compared with prior art, the beneficial effects of the utility model are：
Multiple fixed access points can be set in the utility model, and to adapt to bigger scope and multiple stockyards, wireless signal moves
Dynamic access point can establish Radio Link between different wireless signal fixed access point and ensure that radio communication being capable of handover
Or roaming, and improve reliability.Meanwhile the running face of portable antenna overlaps with the running face of fixed antenna and ensures wireless signal
Reliable diffusion and reception.Barricade is set in the one or both ends parallel to running face in access point antenna, more enhancing is anti-
Interference performance.
Brief description of the drawings
Fig. 1 is the stockyard and stockyard peripheral path schematic diagram of the utility model embodiment；
Fig. 2 is the antenna scheme of installation of the utility model embodiment in the view perpendicular to running face；
Fig. 3 be the utility model embodiment fixed antenna and portable antenna radiation angle schematic diagram parallel to running face
View；
Fig. 4 is that a stockyard of the utility model embodiment sets the schematic diagram of multiple antenna running faces；
Fig. 5 is that the portable antenna of the utility model embodiment is arranged on the schematic diagram at crane both ends；
Fig. 6 is to set screen at the both ends parallel to running face when the fixed antenna of the utility model embodiment is directional aerial
The schematic diagram of shield plate；
Fig. 7 is to set screen in one end parallel to running face when the portable antenna of the utility model embodiment is directional aerial
The schematic diagram of shield plate；
Fig. 8 is the fixed antenna of the utility model embodiment and when portable antenna is omnidirectional antenna parallel to running face
Both ends set the example of barricade, for being disposed during use omnidirectional antenna.
Embodiment
With reference to embodiments and its accompanying drawing the utility model is described in further detail.
Embodiment
Referring to Fig. 1, multiple Container Yards 1 are provided with port and pier, each Container Yard 1 is rectangular, arranges around it
There is linear road, pass through for crane.Work-yard of the Container Yard 1 as handling operation, in whole work-yard, gantry
Crane only advance along its length by straight line, is parked in given place and carries out handling operation.There is one fixed width one work-yard, therefore
There is a plurality of parallel traveling straight line one work-yard, and portal jib crane carries out thread-changing by the road around work-yard and changed
.
In the present embodiment, definition comprising portal jib crane work-yard traveling straight line and perpendicular to ground plane for advance
Face；The running face for crossing center of antenna point is referred to as antenna running face.
Referring to Fig. 2 to Fig. 4, stevedoring remote control broadband Internet of Things radio signal coverage system includes being arranged on packaging
In case stockyard 1 or heap field edge multiple wireless signal fixed access points 6, and with portal jib crane 7 on portal jib crane 7
Mobile wireless signal mobile access point, wireless signal fixed access point 6 is provided with antenna 2, and antenna 2 passes through feeder line 5 and nothing
Line signal fixed access point 6 is connected, and wireless signal mobile access point is provided with antenna 3.Wireless signal mobile access point from it is different
Wireless signal fixed access point 6 between can establish Radio Link, it is wireless with one of them in wireless signal mobile access point
When signal fixed access point 6 is communicated, running face and the wireless signal of the antenna 3 of the wireless signal mobile access point are fixed
The running face of the antenna 2 of access point 6 overlaps, and overlaps biased error and is not more than 3 meters, to ensure the accessibility of signal.
Horizontal plane using antenna running face 4 as antenna radiation pattern, center of antenna point excessively perpendicular to antenna running face 4
Plane the vertical plane as antenna radiation pattern, radiated on the vertical plane of antenna radiation pattern on wireless signal fixed access point 6
Angle 11 is α, and radiation angle 13 is θ on the horizontal plane of antenna radiation pattern；Antenna radiation pattern is vertical on wireless signal mobile access point
Radiation angle 12 is β on face, and radiation angle 14 is γ on the horizontal plane of antenna radiation pattern.
A possible more than antenna on each wireless signal access point, the radiation angle described in the present embodiment refer to an access
The radiation angle of all antenna synthesis on point.Because the access point antenna directional diagram vertical plane multiple operation place of the present embodiment is put down
Face, and the horizontal plane of antenna radiation pattern, in work-yard plane, therefore, in the present embodiment, antenna is laterally set.
There can be multiple antenna running faces 4 in one Container Yard 1, it is different in stockyard to adapt to portal jib crane such as Fig. 4
The situation of position.If H is the difference in height of portable antenna and fixed antenna, L is the single Container Yard of setting along portal jib crane
Direct of travel wireless signal radiation zone length, in the present embodiment, it be equal to single Container Yard length l, W be
The radiation zone width of setting, W, which should be less than two neighboring running face interval, could effectively reduce harassing between different radiation zones, W
Smaller, resistance to crosstalk effect is better；But W is too small, and radiation zone is narrow, the precision moved towards to antenna installation accuracy and straddle truck straight line
It is required that it is very high, it is not easily accomplished in engineering.When the initiating terminal of the length direction in Container Yard 1 sets a wireless signal to consolidate
When determining access point, the relation of each irradiation angle, β, θ and γ and W, H and l is shown in equation below：
Fixed antenna irradiation angle on the vertical plane of directional diagram meets formula α≤tan-1(W/2H)；
Radiation angle θ meets formula θ >=tan on the horizontal plane of antenna radiation pattern-1(l/H)；
Portable antenna radiation angle β on the vertical plane of directional diagram meets formula β≤tan-1(W/2H)；
Radiation angle γ meets formula γ >=tan on the horizontal plane of antenna radiation pattern-1(l/H)。
When the radiation zone width W=6 rice of setting, height difference H=20 meter of portable antenna and fixed antenna, Container Yard
Length l=200 rice, calculated, drawn on wireless signal fixed access point 6 on the vertical plane of antenna radiation pattern according to above-mentioned formula
Irradiation angle≤8.53 °, radiation angle θ >=84.3 ° on the horizontal plane of antenna radiation pattern；Antenna side on wireless signal mobile access point
Radiation angle β≤8.53 ° on to the vertical plane of figure, radiation angle γ >=84.3 ° on the horizontal plane of antenna radiation pattern.In view of actual day
The radiation angular dimensions of line product is a limited number of kind, it is impossible to and it is any, so, it can take α=8 °, θ=90 °, β=8 °, γ=
90°。
When its initiating terminal and terminal of the length direction in Container Yard 1 are respectively provided with wireless signal fixed access point,
L=l/2 can be set, the relation of each irradiation angle, β, θ and γ and W, H and l is shown in equation below：
Fixed antenna irradiation angle≤tan on the vertical plane of directional diagram-1(W/2H),
Radiation angle θ >=tan on the horizontal plane of antenna radiation pattern-1(l/2H),
Portable antenna radiation angle β≤tan on the vertical plane of directional diagram-1(W/2H),
Radiation angle γ >=2tan on the horizontal plane of antenna radiation pattern-1(l/2H)。
When the radiation zone width W=6 rice of setting, height difference H=20 meter of portable antenna and fixed antenna, Container Yard
Length l=200 rice, and Container Yard 1 length direction its initiating terminal and terminal be respectively provided with wireless signal and fix
During access point, calculated according to above-mentioned formula, draw on wireless signal fixed access point 6 radiation angle on the vertical plane of antenna radiation pattern
α≤8.53 °, radiation angle θ >=78.69 ° on the horizontal plane of antenna radiation pattern；Antenna radiation pattern on wireless signal mobile access point
Radiation angle β≤8.53 ° on vertical plane, radiation angle γ >=157.38 ° on the horizontal plane of antenna radiation pattern.Produced in view of actual antennas
The radiation angular dimensions of product is a limited number of kind, it is impossible to and it is any, so, it can take α=8 °, θ=90 °, β=8 °, γ=180 °,
180 ° of antennas typically need 2 or more than 2 directional aerial synthesis, can also use single 360 ° of antennas, i.e. omnidirectional antenna substitutes.
Certainly, also wireless signal fixed access point can be set in any position of the length direction of Container Yard 1, not only
It is only limitted to above-mentioned two situations.
Referring to Fig. 5, the present embodiment mobile access point antenna is arranged on the top both sides of portal jib crane 7, and crane both ends are all installed
Wireless signal mobile access point antenna 3, it is also possible to only install antenna 3 at one end.The both ends of portal jib crane 7 are all installed by the mesh of antenna 3
Be in order to which the signal that both sides are sent can be received, such portal jib crane 7 can receive letter in the both sides of antenna running face 4
Number；If portal jib crane 7 only has one end installation antenna 3, portal jib crane 7 only can receive letter in the side of antenna running face
Number.
For the situation that antenna is directional aerial, referring to Fig. 6, the antenna 2 of wireless signal fixed access point 6 is in parallel antenna
The both ends of running face set barricade 22 and barricade 23, and for strengthening antijamming capability, antenna 2 is fixed by antenna holder 25
On support bar 23, support bar 23 fixes on the ground.Referring to Fig. 7, the antenna 3 of wireless signal mobile access point is due to leaning on one end
Nearly portal jib crane, portal jib crane play shielding action, can simplify the barricade 22 for subtracting one end, only in support bar 23 away from dragon
One end of gantry crane car sets barricade 21, and support bar 23 is fixed on portal jib crane, and antenna 3 is fixed on branch by antenna holder 25
On strut 23.
For the situation that antenna is omnidirectional antenna, referring to Fig. 8, antenna sets barricade 22 at the both ends parallel to running face
With 23, support bar 23 be metal material to strengthen intensity, antenna is fixed at support bar 23 by antenna holder 25, with notelet
Number do not stopped by support bar 23, both ends barricade auxiliary support bar 24 supports, and auxiliary support bar 24 is not using bright to signal
The aobvious material weakened.
Preferable implementation example of the present utility model is the foregoing is only, is not limited to the utility model, it is all in this reality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (6)
1. a kind of stevedoring remote control broadband Internet of Things radio signal coverage system, including it is arranged on the traveling of portal jib crane
Wireless signal fixed access point on the place of guide rail side, and be arranged on portal jib crane top and fixed with the wireless signal
The wireless signal mobile access point of access point homonymy installation；
It is characterized in that：
Fixed antenna is installed at the wireless signal fixed access point, is provided with the wireless signal mobile access point with dragon
The portable antenna of gantry crane car movement；
The biased error that the running face of the portable antenna overlaps with the running face of the fixed antenna is not more than 3 meters；
Using the running face of antenna as the horizontal plane of antenna radiation pattern, to cross the putting down perpendicular to the running face of center of antenna point
The vertical plane as antenna radiation pattern in face, then:
Described fixed antenna irradiation angle on the vertical plane of directional diagram meets formula α≤tan-1(W/2H), in antenna radiation pattern
Horizontal plane on radiation angle θ meet formula θ >=tan-1(L/H)；
Described portable antenna radiation angle β on the vertical plane of directional diagram meets formula β≤tan-1(W/2H), in antenna radiation pattern
Horizontal plane on radiation angle γ meet formula γ >=tan-1(L/H)；
Wherein, L is the length of wireless signal radiation zone of the single Container Yard along the direct of travel of portal jib crane of setting, W
For the radiation zone width of setting, H is the difference in height of portable antenna and fixed antenna.
2. stevedoring remote control broadband Internet of Things radio signal coverage system according to claim 1, its feature exist
In：
Described fixed antenna is centrally located at the running face through the portable antenna center, and described running face passes through corresponding
The central point of antenna and perpendicular to the ground.
3. stevedoring remote control broadband Internet of Things radio signal coverage system according to claim 1, its feature exist
In：
Described portal jib crane both ends are mounted on portable antenna.
4. the stevedoring remote control broadband Internet of Things wireless signal according to claims 1 to 3 any claim covers
Convering system, it is characterised in that：
Described portable antenna and described fixed antenna are directional aerial；
The portable antenna is provided with barricade in one end parallel to running face；
The fixed antenna is being provided at both ends with barricade parallel to running face.
5. the stevedoring remote control broadband Internet of Things wireless signal according to claims 1 to 3 any claim covers
Convering system, it is characterised in that：
Described portable antenna is omnidirectional antenna, and described fixed antenna is directional aerial；
The portable antenna is provided with barricade in one end parallel to running face；
The fixed antenna is being provided at both ends with barricade parallel to running face.
6. the stevedoring remote control broadband Internet of Things wireless signal according to claims 1 to 3 any claim covers
Convering system, it is characterised in that：
Described portable antenna and described fixed antenna are omnidirectional antenna；
The portable antenna is provided with barricade in one end parallel to running face；
The fixed antenna is being provided at both ends with barricade parallel to running face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931423.4U CN207135284U (en) | 2017-07-28 | 2017-07-28 | Stevedoring remote control broadband Internet of Things radio signal coverage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931423.4U CN207135284U (en) | 2017-07-28 | 2017-07-28 | Stevedoring remote control broadband Internet of Things radio signal coverage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207135284U true CN207135284U (en) | 2018-03-23 |
Family
ID=61639754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720931423.4U Withdrawn - After Issue CN207135284U (en) | 2017-07-28 | 2017-07-28 | Stevedoring remote control broadband Internet of Things radio signal coverage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207135284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371174A (en) * | 2017-07-28 | 2017-11-21 | 浙江大学 | Stevedoring remote control broadband Internet of Things radio signal coverage system |
-
2017
- 2017-07-28 CN CN201720931423.4U patent/CN207135284U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371174A (en) * | 2017-07-28 | 2017-11-21 | 浙江大学 | Stevedoring remote control broadband Internet of Things radio signal coverage system |
| CN107371174B (en) * | 2017-07-28 | 2023-07-11 | 浙江大学 | Wharf loading and unloading remote control broadband Internet of things wireless signal coverage system |
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Granted publication date: 20180323 Effective date of abandoning: 20230711 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20230711 |
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| AV01 | Patent right actively abandoned |