CN108345960B - Site selection method and device from port logistics area to abdominal area - Google Patents
Site selection method and device from port logistics area to abdominal area Download PDFInfo
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Abstract
The invention discloses a method and a device for selecting a site from a port logistics area to a belly, which comprises the steps of calculating a transportation cost coefficient from each candidate point to a direct belly; calculating the cost coefficient of each candidate point and indirect abdominal transportation; and introducing a first weight and a second weight, and calculating a comprehensive transportation cost coefficient from the candidate points to the abdominal region. The invention is divided into indirect and direct calculation, and finally obtains a site selection method from a comprehensive port logistics area to the abdominal area, and provides a site selection device based on the organization coefficient of a logistics supply chain, which can stabilize the free adjustment of the inclination angle and direction of a display or a display screen in the space, avoid the sliding caused by shaking or excessive use, and is very simple and rapid.
Description
Technical Field
The invention relates to engineering site selection, in particular to a method and a device for site selection from a port logistics area to a belly.
Background
Three-dimensional GIS data models can be divided into surface models and body models. The surface model data structure focuses on the representation of three-dimensional spatial surfaces, such as terrain surfaces, geological layers, etc., including grid structures (grid), irregular triangulation networks (TIN), boundary representations, parametric functions, etc. In practical application, more grid structures and irregular triangular net modes are adopted. The advantage of forming a three-dimensional spatial object representation by surface representation is that it facilitates display and data updating, but is two-dimensional in nature, only obtains information from the earth's surface, and does not effectively represent any point within the earth's surface. It is generally considered a three-dimensional model due to the visual effect. The disadvantage is that spatial analysis is difficult to perform. The body model data structure focuses on the representation of a three-dimensional space body, such as a water body, a building and the like, and the three-dimensional space target representation is realized through the description of the body. Including octree structures, tetrahedral mesh structures, irregular pentahedral structures, and the like. Its advantages are high adaptability to space operation and analysis, large occupied storage space and low calculation speed.
The international freight industry is an industry which accepts consignors and shippers of goods for import and export, transacts international goods transportation and related businesses for the consignors and receives service remuneration on behalf of the consignors or on behalf of the consignors. With the development of international trade and the promotion of global logistics network integration, the cooperation of materials and information among different types of logistics enterprises is strengthened continuously, and the inland logistics integration and the improvement of logistics efficiency become necessary. The international freight agency enterprise function is transformed from a single trade operation or transportation function to comprehensive transformation, and is embedded into each link of marine transportation, air transportation and land transportation logistics, the distribution of the international freight agency enterprise headquarters and subsidiaries in different cities and the function connection and the service connection among the headquarters and the subsidiaries form a city-city logistics supply chain network function connection set, and the networking of the international freight agency becomes an important representation of the logistics supply chain space recombination.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
At present, to select an optimal position to establish port logistics, various factors need to be considered, so that site selection becomes a problem of a larger project.
The present invention has been made keeping in mind the above and/or other problems occurring in the prior art.
Therefore, one of the objects of the present invention is to provide a method for locating the port logistics area to the abdominal area, sitting in the best suitable area.
In order to solve the technical problems, the invention provides the following technical scheme: a method for selecting a site from a port logistics area to an abdominal area comprises the steps of calculating a direct abdominal area transportation cost coefficient from each candidate point; calculating the cost coefficient of each candidate point and indirect abdominal transportation; and introducing a first weight and a second weight, and calculating a comprehensive transportation cost coefficient from the candidate points to the abdominal region.
As a preferable scheme of the method for locating the site from the port logistics area to the abdominal area, the method comprises the following steps: the method for calculating the direct abdominal transportation cost coefficient of each candidate point comprises the steps of calculating the weighted shortest weighting time from the candidate points in the logistics area of the outer high-bridge port to all towns in the abdominal area; calculating the shortest travel time from the candidate points of the logistics area of the outer high-bridge port to the corresponding villages and towns; and calculating the direct abdominal transportation cost coefficient of each candidate point.
As a preferable scheme of the method for locating the site from the port logistics area to the abdominal area, the method comprises the following steps: the calculation method of the weighted shortest weighted time from the candidate point of the logistics area of the outer high-bridge port to all towns in the abdominal area comprises the following steps:
Ix＝Ahxi/∑Ahxi/n
as a preferable scheme of the method for locating the site from the port logistics area to the abdominal area, the method comprises the following steps: the method for calculating the cost coefficient of the candidate points and the indirect abdominal transportation comprises the steps of selecting main roads, waterways and railway transportation hubs to obtain the reachability index of the candidate points in the port logistics area in a transportation mode; calculating the shortest travel time from the candidate point to the selected destination transportation hub; calculating candidate points of each port logistics area and indirect abdominal transportation cost coefficients; determining share of goods in various transportation modes in a port logistics area; and comprehensively weighting according to the share weight to obtain the cost coefficient of indirect abdominal transportation of each candidate point.
As a preferable scheme of the method for locating the site from the port logistics area to the abdominal area, the method comprises the following steps: the value range of x in the reachability index is 1-3, the numbers 1, 2 and 3 respectively represent roads, railways and water transportation, and the calculation formula is as follows:
Aix＝Ths/∑Ths/k
wherein the number k is the number of the transportation junction nodes.
As a preferable scheme of the method for locating the site from the port logistics area to the abdominal area, the method comprises the following steps: the calculation method of the candidate points and the indirect abdominal transportation cost coefficient comprises the following steps:
the invention also provides a site selection device from the port logistics area to the abdominal area, and the site selection method is applied to the site selection device to achieve the purpose of quickly checking the site selection position.
A device for selecting the site from a port logistics area to the abdominal area comprises a method for selecting the site from the port logistics area to the abdominal area, and further comprises a mounting disc, a display body and a positioning disc, wherein the mounting disc is arranged at the top end of a support and used for mounting the display body; the display body comprises at least one display and a supporting frame, a first accommodating space is formed by the middle of the supporting frame in a concave mode, the display array is placed in the first accommodating space, a main gear and a rack are arranged inside the display, the rack is horizontally concave towards the inside of the display, and the main gear and the rack are mutually vertical and meshed; the display comprises a processing module and a transceiver module, the processing module comprises a method for selecting a site from the port logistics area to the direct abdominal region, the transceiver module receives signals of the processing module, and the processing module displays processed information through the display.
As a preferable scheme of the site selection device from the port logistics area to the abdominal area, the invention comprises the following steps: still include, adjusting module with the mounting disc rear side is connected and can be adjusted the mounting disc is position and gesture in the space, including last adjusting part, adjusting part and arbor arm, go up adjusting part with lower adjusting part set up respectively in the upper and lower both ends of arbor arm, just go up adjusting part set up in the mounting disc with between the upper end of arbor arm, lower adjusting part set up in the support module with between the arbor arm lower extreme.
As a preferable scheme of the site selection device from the port logistics area to the abdominal area, the invention comprises the following steps: the upper adjusting assembly further comprises a transverse shaft block, a vertical shaft block and a shaft rod, one end of the transverse shaft block is in transverse shaft movable connection with the front end of the vertical shaft block, and the other end of the transverse shaft block is connected with the rear side of the mounting disc; the tail end of the vertical shaft block is connected with the shaft arm through the shaft rod.
As a preferable scheme of the site selection device from the port logistics area to the abdominal area, the invention comprises the following steps: the lower adjusting component further comprises a shaft sleeve, a side pier block and a limiting block, the shaft sleeve is sleeved on the supporting module, the side pier block is attached to the outer side face of the shaft sleeve, and the limiting block is attached to the outer side face of the side pier block.
The invention has the beneficial effects that: the invention provides a method for selecting a site from a port logistics area to a ventral region, which comprises two modes of indirection and direct, comprehensively evaluating factors in all aspects, and finally obtaining a method for selecting a site from the port logistics area to the ventral region, wherein in order to quickly find a target and position, a press part rotates to drive a rotating locking piece to rotate, so that the rotating locking piece rotates to the rear end of a limiting convex block from a gap between the limiting convex blocks, the limiting convex block limits the rotating locking piece, a base is embedded with a connecting piece, and vice versa when the rotating locking piece is disassembled; and the fourth bulge and a step hole formed by the first layer and the second layer of the rotary locking piece are extruded and fixed, so that the rotary locking piece is fixed on the connecting piece.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic diagram of a port logistics area to direct abdominal transportation cost coefficient in an embodiment of the method for locating a site from a port logistics area to an abdominal site provided by the invention;
FIG. 2 is a block diagram of a cargo transfer analysis framework from a port logistics area to an indirect abdominal area in an embodiment of the method for locating a port logistics area to an abdominal area provided by the present invention;
fig. 3 is a schematic diagram of a transportation cost coefficient from a port logistics area to an indirect abdominal area in an embodiment of the method for locating a site from the port logistics area to the abdominal area provided by the invention;
fig. 4 is a schematic diagram of a comprehensive transportation cost coefficient from the port logistics area to the abdominal region in an embodiment of the method for selecting the site from the port logistics area to the abdominal region provided by the invention;
fig. 5 is a schematic view showing the overall structure of a display stand according to a first embodiment of the apparatus for locating a port logistics area to the abdominal region of the present invention;
fig. 6 is a partially enlarged schematic view of the display body of the first embodiment of the addressing device for the port logistics area to the abdominal area according to the invention;
fig. 7 is a schematic view showing the overall structure of the display of the first embodiment of the site selection device from the port logistics area to the abdominal area;
fig. 8 is a schematic view showing the overall structure of the adjusting module of the first embodiment of the device for locating the port logistics area to the abdominal area;
fig. 9 is a schematic view showing the overall structure of the mounting plate of the first embodiment of the addressing device for the port logistics area to the abdominal region;
fig. 10 is a schematic view of the overall structure of the linkage rod of the first embodiment of the addressing device from the port logistics area to the abdominal area;
fig. 11 is a schematic view of the overall structure of the linkage lower shaft seat of the first embodiment of the addressing device from the port logistics area to the abdominal area;
fig. 12 is a schematic view showing the overall structure of the support module according to the first embodiment of the device for locating the port logistics area to the abdominal region;
FIG. 13 is a schematic structural view of a magnetic lock assembly in a second embodiment of the device for locating a port logistics area to the abdominal site;
fig. 14 is a schematic view of the overall structure of a magnetic lock assembly according to a second embodiment of the addressing device for the port logistics area to the abdominal area;
fig. 15 is a schematic view of an exploded structure of a magnetic lock assembly according to a second embodiment of the device for locating a port logistics area to the abdominal area;
fig. 16 is a schematic view showing the overall structure of a magnetic rotating block assembly according to a second embodiment of the device for locating a port logistics area to the abdominal region;
fig. 17 is a schematic view showing the overall structure of a wear-resistant ring according to a second embodiment of the device for locating a port logistics area to the abdominal region;
FIG. 18 is a schematic view showing the overall structure of a shaft pin of a second embodiment of the address selecting device from the port logistics area to the abdominal area;
fig. 19 is an overall sectional structural view of a magnetic lock assembly according to a second embodiment of the addressing device for the port logistics area to the abdominal region.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
In one embodiment of the invention, the method for selecting the site from the port logistics area to the abdominal area comprises the step of calculating the weighted shortest weighted time A from the candidate point of the outer high-bridge port logistics area to all towns and towns in the abdominal areahxi(ii) a Calculating the shortest travel time T from the candidate point of the logistics area of the outer high-bridge port to the corresponding village and townhxij(ii) a Calculating the direct abdominal transportation cost coefficient I of each candidate pointx. Wherein the weighted shortest weighted time A from the candidate point i of the logistics area of the outer high-bridge port to all towns in the abdominal areahxiThe calculation method comprises the following steps:
Ix＝Ahxi/∑Ahxi/n
wherein, the mass MjThe quality of the representative township j is represented by the product of the area ratio of each township and the total industrial value above the full-scale of the city, and the number n represents the number of townships in the abdominal region.
According to the above two formulas, the calculation of the cost coefficient from each candidate point in the logistics area of the foreign high-bridge port to the direct abdominal transportation (refer to fig. 1) shows that the minimum transportation cost coefficient is located at the 185 th candidate point, and the value is 0.78821; the maximum transportation cost coefficient is located at candidate point number 129, and the value is 1.25560; the transportation cost coefficients of candidate points of the outer high bridge bonded logistics park are 1.10793, 1.13649, 1.08524 and 1.10976 respectively, are respectively positioned at the 182 th position, the 197 th position, the 166 th position and the 183 th position, and are at a lower level. The selected area is narrowed down to within an area of range.
From the perspective of the transportation space, referring to fig. 2, to the indirect abdominal transportation cost system analysis framework diagram, P denotes a destination port area, T, G, S denotes a collective distribution node (railway, road and waterway), a dotted line denotes a collective distribution corridor (railway, road and waterway), a straight line denotes a road collective distribution corridor, and a quadrangle denotes a port logistics area candidate point.
Indirectly abdominal cargo will eventually pass through port city transportation hubs like highways, waterways (coastal, inland rivers), railways, etc., and then be transported by road to the relevant port logistics areas. Therefore, the method comprises the steps of firstly selecting main road, waterway and railway transportation hub to obtain the reachability index A of the port logistics area candidate point i in the transportation mode xixMeter for measuringCalculating the shortest travel time T from the candidate point i to the selected destination transportation junctionhs(ii) a Calculating the candidate points i of the logistics areas of all ports and the indirect abdominal transportation cost coefficient IAi(ii) a Determining share W of goods shared by various transportation modes in port logistics areax(ii) a Obtaining a coefficient I of indirect abdominal transportation cost of each candidate point through comprehensive weighting according to the share weightA. Wherein the reachability index AixThe value range of x in the process is 1-3, the numbers 1, 2 and 3 respectively represent roads, railways and water transportation, the number k is the number of the transportation junction nodes, and the calculation formula is as follows:
Aix＝Ths/∑Ths/k
the candidate points and the indirect abdominal transportation cost coefficient IAThe calculation method comprises the following steps:
in this embodiment, the above sea is taken as an example for specific explanation.
The method comprises the steps of firstly selecting military road and port stations, Yangpu port station, northwest logistics park, Baoshan freight station, Songnan freight station, outer high-bridge inland river and port area and inner high-bridge east and port area as corresponding abdominal transportation hubs, respectively calculating road transportation accessibility from candidate points in logistics areas of outer high-bridge ports to the transportation hubs by using an analysis module, and performing weighted synthesis. The reachability indexes of the transportation hubs of the same type are weighted according to the same weight, such as military deer port stations and Yangpu sentry stations which are represented by railway hub stations, the weights of the reachability indexes are 0.5, and the like, on the basis, the freight sharing coefficients of road, railway and waterway transportation hubs are respectively determined to be 0.625, 0.004 and 0.371 by referring to the sharing proportion of road, waterway and railway transportation modes in the cargo throughput of port ports in 2007, and the transportation cost coefficient pattern from each candidate point i to an indirect abdominal region is obtained according to a formula, and reference is made to fig. 3.
Road traffic accessibility coefficients of all candidate points in the logistics area of the outer high bridge port to common hubs of railways, roads and waterways show obvious circle-layer structures, the minimum accessibility indexes of all the candidate points to the common hubs of railways, roads and waterways are 0.5764, 0.5708 and 0.5241 respectively, and the minimum accessibility indexes are No. 63, 38 and 63 candidate points respectively; the minimum transportation cost coefficient from each candidate point of the port logistics area to the indirect abdominal area is located at the candidate point No. 63, and the transportation cost coefficient is 0.5811. Road traffic accessibility indexes from candidate points (No. 27, 28, 39 and 40 candidate point junctions) of the outer high bridge bonded logistics park to railways, roads and ports are 1.076(1.1728, 0.9873 and 1.0785), 0.9927(1.0712, 1.0712, 0.9433 and 1.0138) and 0.5775(0.5936, 0.5936, 0.5302 and 0.5252); the cost coefficients of transportation to indirect abdominal are respectively 0.8745, 0.935, 0.8254 and 0.874, respectively, at 97 th, 112 th, 80 th and 96 th, and are all at a medium level.
Finally, a first weight alpha and a second weight beta are introduced, and a comprehensive transportation cost coefficient I from the candidate point I to the abdominal region is calculatedZNamely:
Iz＝αIx+βIA
wherein the first weight α is a port logistics area candidate to direct abdominal documentary cost weight, and the second weight β is a port logistics area candidate to indirect abdominal transportation cost weight.
Referring to fig. 4, the proportion of the local cargo sources at the upper sea in the container throughput completed in the seaport in 2005 to 2007 is basically maintained at about 30%, the proportion of the local cargo sources in Jiangsu, Zhejiang, Anhui, Jiangxi, Hubei, Hunan, Chongqing, Sichuan and the like reaches 63%, the proportion of the local cargo sources in other provinces accounts for 7%, and in view of this, the direct abdominal region (port city), the first weight α and the second weight β are respectively 0.3 and 0.7, and the comprehensive cloud book cost pattern from each candidate point to the abdominal region in the logistics area of the outer high bridge port is obtained.
In order to reflect parameters of all aspects objectively, the invention also provides a device for addressing the port logistics area to the abdominal area, and provides three modules of screen lifting, convenient disassembly and dustproof sheets.
Example 1
Referring to fig. 5 to 12, in order to fix the display and adjust the height and the inclination angle of the display in a space, so as to meet the requirement of a user, in the present embodiment, the display bracket includes a mounting plate 100, an adjusting module 200, a supporting module 300, and a display body 500. Specifically, the mounting plate 100 is arranged at the top end of the bracket and used for mounting the display body 500, the adjusting module 200 is connected with the rear side of the mounting plate 100 and can adjust the position and the posture of the mounting plate 100 in the space, and the supporting module 300 is used for supporting and mounting the whole bracket; the adjusting module 200 further comprises an upper adjusting component 201, an adjusting component 202 and a shaft arm 203; wherein, the upper adjusting component 201 and the lower adjusting component 202 are respectively arranged at the upper end and the lower end of the shaft arm 203, the upper adjusting component 201 is arranged between the mounting plate 100 and the upper end of the shaft arm 203, and the lower adjusting component 202 is arranged between the supporting module 300 and the lower end of the shaft arm 203.
Further, in this embodiment, the upper adjusting assembly 201 further includes a horizontal shaft block 201a, a vertical shaft block 201b, and a shaft rod 201c, one end of the horizontal shaft block 201a is connected with the front end of the vertical shaft block 201b in a horizontal shaft manner, and the other end is connected with the rear side of the mounting plate 100; the end of the vertical shaft block 201b is connected with the shaft arm 203 through a shaft rod 201c, the lower adjustment assembly 202 further comprises a shaft sleeve 202a, a side pier block 202b and a limiting block 202c, the shaft sleeve 202a is sleeved on the support module 300, the side pier block 202b is attached to the outer side surface of the shaft sleeve 202a, and the limiting block 202c is attached to the outer side surface of the side pier block 202 b.
The mounting plate 100 further includes a mounting panel 101, a reinforcing boss 102, a shaft seat 103 and a shaft pin 104, wherein the mounting panel 101 is provided with at least one mounting hole, the reinforcing boss 102 is disposed on a rear side surface of the mounting panel 101, the shaft seat 103 is disposed on a surface of the reinforcing boss 102, and two ends of the shaft pin 104 are disposed on the shaft seat 103 in a penetrating manner.
Further, the adjusting module 200 further includes a linkage rod 204, two ends of which are respectively connected to the vertical shaft block 201b and the reinforcing boss 102, and the linkage rod 204 further includes a linkage upper shaft seat 204a, a linkage lower shaft seat 204b and a sliding shaft rod 204 c; the upper linkage shaft seat 204a is disposed in the vertical shaft block 201b and hinged to the upper end of the sliding shaft 204c, and the lower linkage shaft seat 204b is disposed in the side block 202b and hinged to the lower end of the sliding shaft 204 c.
The shaft arm 203 further comprises an upper shaft cover 203a and a lower shaft cover 203b, the upper shaft cover 203a covers the lower shaft cover 203a to form the shaft arm 203, and the upper end and the lower end of the upper shaft cover 203a are respectively connected with the tail end of the vertical shaft block 201b and the side pier block 202b through a shaft rod 201 c; the upper end and the lower end of the lower shaft cover 203b are respectively connected with the vertical shaft block 201b and the side pier block 202b through shaft bolts 201 d.
The supporting module 300 further includes at least one extending arm 301, a base 302 and a mounting component 303, wherein the shaft sleeve 202a is sleeved at one end of the extending arm 301 and can rotate relatively, the other end of the extending arm 301 is sleeved on the base 302, and the mounting component 303 is disposed on the bottom surface of the base 302 and is used for fixing and mounting the base 302 at a position to be mounted. Wherein the mounting assembly 303 further comprises a mounting rod 303a, a spacer 303b and a rotating member 303c, one end of the mounting rod 303a is connected with the bottom end of the base 302, the other end of the mounting rod 303a is connected with the rotating member 303c, and the spacer 303b is located on the rotating member 303 c.
In this embodiment, referring to fig. 6 to 8, the display body 500 includes at least one display 501 and a supporting frame 502, a first accommodating space M is formed by recessing the middle of the supporting frame 502, the displays 501 are arranged in the first accommodating space M in an array, and the displays 501 can be lifted in the supporting frame 502. For example, the display 500 shows the geographical locations where construction can be performed, and all the displays 501 are on the same plane, and when a constraint or requirement is given, the selected locations are selected, and the displays 501 at the selected locations are raised, so that people can clearly see which locations are reasonable and the distribution of the locations can be seen.
It should be noted that the display 501 includes a processing module and a transceiver module, the transceiver module adopts a location selection method based on the organization coefficient of the logistics supply chain, the transceiver module is connected with an external computer, receives an instruction sent by the computer, and transmits a transmitted signal to the processing module, and the processing module displays the processed information through the display 501. In this embodiment, the processing module is preferably a microprocessor, and the transceiver module may be replaced by a bluetooth communication protocol and a Radio Frequency (Radio Frequency), a ZIGBEE protocol, an Ultra Wide Band (Ultra Wide Band), NFC, or other communication methods. The radio frequency is a short for high-frequency alternating current variable electromagnetic wave, alternating current which changes less than 1000 times per second is called low-frequency current, alternating current which changes more than 10000 times per second is called high-frequency current, and the radio frequency is the high-frequency current. The ZigBee protocol adapts to the requirements of low cost, low energy, high fault tolerance and the like of a wireless sensor, and the Zigbee is an emerging short-distance and low-speed wireless network technology, is mainly used for short-distance wireless connection, has a protocol standard of the Zigbee protocol, and realizes communication among thousands of tiny sensors in a mutually coordinated mode. The ultra-wideband technology solves the major problems of the traditional wireless technology in the aspect of transmission for many years, and has the advantages of insensitivity to channel fading, low power spectral density of transmitted signals, low interception capability, low system complexity, capability of providing positioning accuracy of a few centimeters and the like. NFC is also a close range connection protocol that provides easy, secure, rapid and automatic communication between various devices.
The display 501 is internally provided with a main gear 501a and a rack gear 501b, the rack gear 501b is recessed in an inner portion facing the display 501, and the main gear 501a and the rack gear 501b are perpendicular to and engaged with each other.
Preferably, one end of the main gear 501a is connected to a first power member 501a-1, and the first power member 501a-1 drives the main gear 501a to rotate, so as to drive the rack 501b, so that the display 501 moves in the first accommodating space M. When the first power member 501a-1 drives the main gear 501a to rotate forward, the rack 501b is driven to move upward relatively, so that the display 501 moves in the first accommodating space M in a direction protruding from the first accommodating space M. When the first power member 501a-1 drives the main gear 501a to rotate reversely, the rack 501b is driven to move downward, so that the display 501 moves in the first accommodating space M in a direction recessed in the first accommodating space M.
In this embodiment, the first power member 501a-1 is driven by any one of an electric drive, an electromagnetic drive or a hydraulic drive, and as a best implementation mode of this embodiment, the first power member is preferably driven by an electric power, and is powered by a motor, which not only saves space, but also is convenient and fast to implement.
It should be noted that the display 501 further includes a display surface 501c, a display surface 501d, and a display surface 501e, where the display surface 501c is a top surface of the display surface 501c, the display surface 501d and the display surface 501e are both side surfaces of the display surface 501d and the display surface 501e, and the display surface 501c, the display surface 501d, and the display surface 501e are all liquid crystal displays. After the display 501 is screened, it is controlled by each display to display different parameters. For example, the display surface 501c of all the displays 501 which rise after screening displays the data of the organization capability evolution of the regional scale logistics supply link node, the display surface 501d displays the data of the organization capability evolution of the provincial scale node, and the display surface 501e displays the data of the central evolution in the middle of the regional-provincial scale supply link node. The optimal address position at which the position is selected can be quickly and intuitively recognized through each display surface of each display 501. It should be noted that the lifted displays 501 may be adjacent to each other, if the lifted displays 501 are adjacent to each other, one or both of the two display surfaces 501d and the three display surfaces 501e may not be displayed normally, and at this time, the two display surfaces are required to be manually debugged, so that the two display surfaces are staggered, and various data analysis can be visually seen, thereby obtaining an optimal scheme.
It should be noted that, the movement of each display 501 in the first accommodating space M is not related to each other, and only after the screening, the screened display 501 rises, and the remaining displays 501 are still in the original state.
Example 2
In the first embodiment, the shaft seat 103 and the shaft pin 104 can rotate relatively, the horizontal shaft block 201a is inserted into the shaft pin 104 for limiting and fixing, and the two do not rotate relatively, so the mounting plate 100 can rotate around the horizontal shaft block 201a, but if the weight of the display screen on the mounting plate 100 is too large, and the number of rotation times between the shaft pin 104 and the shaft seat 103 increases, the collision surface gradually becomes smooth after being worn and the friction force gradually decreases, so the mounting plate 100 cannot be fixed at a specified position in the use process, and the mounting plate 100 can slide down due to slight vibration, which is different from the first embodiment in the present embodiment: a magnetic lock module 400 is further arranged between the shaft pin 104 and the shaft seat 103, so that the relative rotation between the shaft pin 104 and the shaft seat 103 can be locked in a normal state, the relative rotation between the shaft pin and the shaft seat can be unlocked when the space angle adjustment of the mounting disc 100 is needed, and the rotation is continuously locked after the adjustment is finished.
Referring to fig. 13 to 15, which are schematic views of a position and an overall structure of the magnetic lock assembly 400 in the present embodiment, specifically, the magnetic lock module 400 includes a stopper 401, a magnetic rotating block assembly 402, a guide sleeve 403, a wear-resistant ring 404, and a magnetic locking block 405. Specifically, referring to fig. 15, which is an exploded schematic view of the magnetic lock module 400, the installation process is as follows: firstly, after the wear-resistant ring 404 is sleeved on the outer side surface of the axle pin 104 (the inner side of the wear-resistant ring 404 is fixed with the outer side of the axle pin 104 and cannot rotate relatively), then the axle seat 103 is sleeved on the outer side surface of the wear-resistant ring 404, damping rotation occurs between the inner side of the axle seat 103 and the outer side of the wear-resistant ring 40, the guide sleeve 403 is embedded in the axle pin 104 and does not rotate relatively, further, the magnetic rotating block assembly 402 is embedded in the guide sleeve 403 to form matching, and finally the inner stop block 401 at the outermost end is limited and fixed.
For more specific description, referring to fig. 16, in this embodiment, the magnetic rotation block assembly 402 further includes a pressing block 402a, a magnetic rotation ring 402b, a guide block 402c, and a spring 402d, and the guide sleeve 403 further includes a guide slide rail 403a and a guide limit protrusion 403 b. Specifically, the pressing block 402a, the magnetic rotating ring 402b, and the spring 402d are connected in sequence, and the guide block 402c is provided at the right end of the magnetic rotating ring 402 b. The guiding slide 403a is a through groove on the guiding sleeve 403, and the groove includes a combination of parallel and vertical directions relative to the guiding sleeve 403 along the extending direction of the guiding sleeve 403, so that when the magnetic rotating ring 402b is gradually embedded into the guiding sleeve 403, the guiding block 402c enters into the guiding slide 403a, so that the magnetic rotating ring 402b is guided to rotate, and the process further includes that when the guiding sleeve 403 is gradually embedded into the shaft pin 104, the spring 402d abuts against the shaft pin 104, so as to ensure that the magnetic rotating block assembly 402 has a tendency of restoring to the original position. The guiding limit protrusions 403b are arranged in parallel along the extending direction of the guiding sleeve 403, so that the guiding sleeve 403 can be limited in a manner that the guiding sleeve 403 cannot rotate relatively in the embedded shaft pin 104.
Further, referring to fig. 17, in this embodiment, the wear-resistant ring 404 further includes a damping protrusion 404a and a limiting protrusion 404b, the shaft seat 103 further includes a magnetic block groove 103a and a magnetic block shaft hole 103b, and the magnetic locking block 405 further includes a magnetic block shaft 405a and a damping locking protrusion 405 b. Specifically, when the wear-resistant ring 404 is embedded in the shaft seat 103, the damping protrusion 404a arranged on the outer surface of the wear-resistant ring 404 and the damping dense area arranged on the inner surface of the shaft seat 103 rotate relatively to generate damping matching, the magnetic locking block 405 is arranged in the magnetic block groove 103a, and the magnetic block shaft hole 103b and the magnetic block shaft rod 405a are arranged in a rotating shaft manner, so that the magnetic locking block 405 can rotate around the shaft when being positioned in the magnetic block groove 103a, namely, one end of the magnetic locking block 405 can tilt upwards or downwards; in a normal state, the damping locking protrusion 405b disposed on the inner surface of the magnetic locking block 405 is in contact fit with the damping protrusion 404a, so that the wear-resistant ring 404 and the axle seat 103 cannot rotate relatively (i.e., in a locked state), and when one end of the magnetic locking block 405 tilts upward, the damping locking protrusion 405b is disengaged from the damping protrusion 404a, so that no mutual interference force exists, and therefore the wear-resistant ring 404 and the axle seat 103 can rotate relatively (i.e., in an unlocked state).
Referring to fig. 18, the shaft pin 104 of the present embodiment further includes a sleeve shaft 104a, a shaft pin outer limiting groove 104b, a shaft pin inner limiting groove 104c, and a shaft pin thread 104 d. Specifically, the sleeve shaft 104a has a hollow sleeve structure, the shaft-pin outer limiting groove 104b and the shaft-pin inner limiting groove 104c are respectively disposed on the outer side and the inner side surfaces of the sleeve shaft 104a, and the shaft-pin thread 104d is disposed on the outermost end of the sleeve shaft 104 a. Based on the above, the following coordination relationships are also provided here: the wear-resisting ring 404 is sleeved on the sleeve shaft 104a, the wear-resisting ring and the sleeve shaft are matched and locked with the shaft pin outer limiting groove 104b through the limiting protrusion 404b, and cannot rotate relatively, and then the guide sleeve 403 is embedded into the sleeve shaft 104a, and is locked with the shaft pin inner limiting groove 104c through the guide limiting protrusion 403b, and cannot rotate relatively; when all the assembly is completed, the pressing block 402a is limited by the stopper 401, and is realized by matching the thread arranged on the inner side of the stopper 401 with the shaft pin thread 104 d.
Referring to fig. 19, a schematic cross-sectional structure of the magnetic lock assembly 400 in this embodiment is shown, and the process of locking and unlocking is substantially implemented as follows: when the magnetic lock assembly 400 is assembled symmetrically, the magnetic lock block 405 is located above the magnetic rotating block assembly 402, it should be noted that the magnetic lock block 405 and the magnetic rotating block assembly 402 both have magnetic force, the magnetic rotating block assembly 402 is sequentially distributed with magnetic force with opposite and same polarity as the magnetic force of the magnetic lock block 405, and the locking and unlocking range is controlled by setting the distribution range of the magnetic force with polarity on the magnetic rotating block assembly 402. In the locked state, the spring 402d is in a normal state (not compressed), and the magnetic force locking block 405 and the magnetic force rotating block assembly 402 are distributed up and down with out-of-phase magnetic poles, and there is an attractive force between the magnetic force locking block and the magnetic force rotating block, so that the damping locking protrusion 405b and the damping protrusion 404a are in mutual interference under the action of magnetic force to realize locking. In an unlocking state, the pressing block 402a, namely the compression spring 402d, is pressed manually, at the moment, the magnetic rotating ring 402b is gradually embedded into the guide sleeve 403, the guide block 402c enters the guide slide rail 403a, so that the magnetic rotating ring 402b is guided to rotate, and as the magnetic rotating block assembly 402 is sequentially distributed with magnetic forces opposite to and same in polarity as the magnetic force of the magnetic locking block 405, when the magnetic rotating block assembly and the magnetic rotating block assembly rotate to have the same magnetic pole, under the action of a repulsive force, one end of the magnetic locking block 405 rotating axially tilts upwards, the damping locking protrusion 405b is separated from the damping protrusion 404a, and unlocking is completed. Here, the purpose of the symmetrical arrangement of the two ends in this embodiment is to achieve unlocking that cannot be unlocked on one side, and to achieve compression of the spring 402d and unlocking that can be achieved only when the pressing blocks 402a are pressed simultaneously by the two ends. Therefore, the position-locking spring 402e is further arranged between the pressing block 402a and the magnetic rotating ring 402b, and the elastic force of the spring 402d is larger than that of the position-locking spring 402e, when the pressing block is pressed on one side, the position-locking spring 402e is compressed, the spring 402d is not compressed, but when the pressing block is pressed on two sides simultaneously, the position-locking spring 402e is not stressed, and the unlocking is realized after the springs 402d with symmetrical two ends are stressed and compressed.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (6)
1. A method for selecting a site from a port logistics area to a belly is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
calculating the direct abdominal transportation cost coefficient (I) of each candidate pointx)；
Calculating the cost coefficient (I) of each candidate point and indirect abdominal transportationA)；
Introducing a first weight (alpha) and a second weight (beta), and calculating a comprehensive transportation cost coefficient (I) of the candidate point (I) to the abdominal regionZ) Namely:
Iz＝αIx+βIA；
the method adopts a site selection device from a port logistics area to a belly area, which comprises,
the mounting plate (100) is arranged at the top end of the bracket and is used for mounting the display body (500); and the number of the first and second groups,
the display body (500) comprises at least one display (501) and a supporting frame (502), a first accommodating space (M) is formed by sinking the supporting frame (502) in the middle, the display (501) is arranged in the first accommodating space (M) in an array mode, a main gear (501a) and a rack (501b) are arranged inside the display (501), the rack (501b) sinks horizontally towards the inside of the display (501), and the main gear (501a) and the rack (501b) are perpendicular to each other and are meshed with each other;
wherein, the display (501) comprises a processing module and a transceiver module, the processing module comprises a method for addressing the port logistics area to the direct abdominal region, the transceiver module receives signals of the processing module, and the processing module displays processed information through the display (501);
the mounting disc (100) further comprises a mounting panel (101), a reinforcing boss (102), a shaft seat (103) and a shaft pin (104), wherein at least one mounting hole is formed in the mounting panel (101), the reinforcing boss (102) is arranged on the rear side face of the mounting panel (101), the shaft seat (103) is arranged on the surface of the reinforcing boss (102), and two ends of the shaft pin (104) are arranged on the shaft seat (103) in a penetrating manner;
a magnetic locking module (400) is further arranged between the shaft pin (104) and the shaft seat (103), and the magnetic locking module (400) comprises a stop block (401), a magnetic rotating block assembly (402), a guide sleeve (403), a wear-resistant ring (404) and a magnetic locking block (405); the inner side of the wear-resistant ring (404) is fixed with the outer side of the shaft pin (104) ring and cannot rotate relatively, the shaft seat (103) is sleeved on the outer side surface of the wear-resistant ring (404), damping rotation occurs between the inner side of the shaft seat (103) ring and the outer side of the wear-resistant ring (404), the guide sleeve (403) is embedded into the shaft pin (104) and does not rotate relatively;
magnetic force commentaries on classics piece subassembly (402) still includes presses briquetting (402a), magnetic force swivel becket (402b), guide block (402c) and spring (402d), and guide sleeve (403) still include direction slide rail (403a) and direction spacing arch (403b), press briquetting (402a), connect gradually between magnetic force swivel becket (402b) and the spring (402d) three, guide block (402c) set up in magnetic force swivel becket (402b) right side top, guide slide rail (403a) are the penetrating groove on guide sleeve (403), and this groove includes the combination of relative guide sleeve (403) parallel and vertical direction along guide sleeve (403) extending direction.
2. The method of locating a port logistics area to the abdominal area of claim 1, wherein: the cost coefficient (I) of direct abdominal transport of each candidate pointx) The method for calculating (a), comprising,
calculating the weighted shortest weighted time (A) from the candidate point (i) of the logistics area of the outer high-bridge port to all towns in the abdominal regionhxi)；
Calculating the shortest travel time (T) from the candidate point (i) of the logistics area of the outer high-bridge port to the corresponding village and town (j)hxij)；
Calculating the direct abdominal transportation cost coefficient (I) of each candidate pointx)。
3. The method of locating a port logistics area to the abdominal area of claim 2, wherein: weighted shortest weighted time (A) from the candidate point (i) of the logistics area of the outer high-bridge port to all towns in the abdominal areahxi) Is calculated byThe method comprises the following steps:
Ix＝Ahxi/∑Ahxi/n
wherein, mass (M)j) The quality of the towns (j) is represented by the product of the area proportion of each towns and the total industrial value above the full-scale of the city, and the number (n) represents the number of towns in the abdominal region.
4. The method of locating a port logistics area to the abdominal area of claim 2, wherein: the candidate points and the indirect abdominal transportation cost coefficient (I)A) The calculation method comprises the steps of selecting main road, waterway and railway transportation hub to obtain the reachability index (A) of the port logistics area candidate point (i) in the transportation mode (x)ix)；
Calculating the shortest travel time (T) of the candidate point (i) to the selected destination transportation junctionhs)；
Calculating the candidate points (i) of the logistics areas of the ports and the indirect abdominal transportation cost coefficient (IA)i)；
Determining share (W) of goods in various transportation modes in port logistics areax)；
Obtaining a cost coefficient (I) of indirect abdominal transportation of each candidate point according to the share weight comprehensive weightingA)。
5. The method of locating a port logistics area to the abdominal area of claim 4, wherein: the reachability index (A)ix) The value range of x in the formula is 1-3, and the numbers 1, 2 and 3 respectively represent roads, railways and water transportation, and the calculation formula is as follows:
Aix＝Ths/∑Ths/k
wherein, the number (k) is the number of the transportation junction nodes.
6. Post-port of claim 5The method for selecting the location of the service area to the abdominal area is characterized in that: the candidate points and the indirect abdominal transportation cost coefficient (I)A) The calculation method comprises the following steps:
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