CN219755914U - Monitoring equipment for port transportation - Google Patents
Monitoring equipment for port transportation Download PDFInfo
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- CN219755914U CN219755914U CN202320476840.XU CN202320476840U CN219755914U CN 219755914 U CN219755914 U CN 219755914U CN 202320476840 U CN202320476840 U CN 202320476840U CN 219755914 U CN219755914 U CN 219755914U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 127
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000012806 monitoring device Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to monitoring equipment for port transportation, and belongs to the technical field of monitoring equipment installation. Including the support post, first monitoring mechanism is including providing the vertical rotary drum A that supports for overhanging xarm A, installs the actuating mechanism A of drive vertical rotary drum A around its center line rotation in the vertical rotary drum A, and vertical rotary drum A's bottom is connected with the connection base A rotation of upper surface through first bearing, install horizontally overhanging xarm A on vertical rotary drum A's the outer wall, overhanging xarm A is kept away from vertical rotary drum A's one end and is installed camera mechanism A. The utility model has the following beneficial effects: the vertical rotary drum A drives the camera shooting mechanism A to rotate around the central line of the vertical rotary drum A through the overhanging cross arm A by controlling the driving mechanism A, the direction of the camera shooting mechanism A is adjusted, the shooting direction of the camera shooting mechanism A is changed, and the camera shooting mechanism A has a wider monitoring visual field.
Description
Technical Field
The utility model relates to monitoring equipment for port transportation, and belongs to the technical field of monitoring equipment installation.
Background
The video monitoring system is also called a closed-circuit monitoring system and is formed by connecting equipment such as a camera, a monitor, a controller and the like. The main functions that video monitoring can realize are as follows: on one hand, a monitor analyzes the state of a monitoring area according to the condition reflected by the video monitoring system and takes appropriate measures according to the corresponding condition; on the other hand, the image, sound and other signals of the monitored area can be completely or partially recorded and stored, and important basis and physical evidence are provided for processing certain events in the future. Because of the advantages of the video monitoring system in the two aspects, the video monitoring system is widely applied to the fields of public security systems, port production systems, medical systems and the like.
The port is a transportation hub which is positioned on the coast of the sea, the river, the lake and the reservoir, has water way intermodal transportation equipment and provides conditions for the safe in-out and berthing of ships, and is a collection point and a hub for the water and land transportation. The port transportation field also needs to be provided with a monitoring camera to monitor traffic conditions.
Patent No. cn20161329284. X, disclosed a bidirectional monitoring camera, including two cameras and base that set up relatively, the camera top all is provided with solar cell panel, the base top is provided with the carousel, the carousel top is provided with the telescopic link, the telescopic link includes interior pole and outer pole, outer pole fixed setting is on the carousel, outer pole passes through the dead lever and is connected with the camera, dead lever one end and outer pole fixed connection, the other end and camera bottom fixed connection, the dead lever middle part is provided with the through-hole, the interior pole passes through the connecting rod and is connected with the camera, connecting rod one end is articulated with interior pole end, and the other end is articulated with the rear end of camera; the bidirectional monitoring camera can perform bidirectional monitoring, and meanwhile, the monitoring direction and the monitoring angle are adjustable, so that the monitoring dead angle is effectively reduced.
Although the above patent can realize the monitoring function, the prior art has incomplete consideration and the following disadvantages:
1. because the harbour area is big, and has the restriction to supervisory equipment installation quantity, current supervisory equipment can't adjust the monitored area for the subregion of harbour can't obtain the control, has the dead angle.
2. Because ports are mostly located on coasts of the sea and the river, wind power is large, and conventional monitoring equipment is easy to shake due to the influence of strong wind.
What need is urgent is a monitoring device for port transportation, realize through control actuating mechanism A drives vertical rotary drum and rotates, and vertical rotary drum A drives camera shooting mechanism A through overhanging xarm A and rotates the removal around vertical rotary drum A's central line, adjusts camera shooting mechanism A's orientation, and changes camera shooting mechanism A shooting direction, makes it possess wider control field of vision, in addition, in strong wind weather, keeps unanimous with wind direction with overhanging xarm A regulation, can reduce the rocking influence that strong wind led to the fact to overhanging xarm A as far as possible.
Disclosure of Invention
In order to solve one of the above problems, according to the above shortcomings in the prior art, the present utility model aims to solve the technical problems: how to realize that the driving mechanism A drives the vertical rotary drum to rotate, the vertical rotary drum A drives the image pickup mechanism A to rotate around the central line of the vertical rotary drum A through the overhanging cross arm A, the orientation of the image pickup mechanism A is adjusted, and the shooting direction of the image pickup mechanism A is changed, so that the image pickup mechanism A has wider monitoring vision; in addition, in strong wind weather, the adjusting direction of the overhanging cross arm A is consistent with the wind direction, so that the shaking influence of strong wind on the overhanging cross arm A can be reduced as much as possible, and the monitoring equipment for port transportation is provided.
The monitoring equipment for port transportation comprises a supporting upright post, wherein the supporting upright post is fixedly arranged on the ground through an installation base at the bottom of the supporting upright post, and an upper platform is arranged at the top of the supporting upright post, and is characterized in that: the upper surface of the upper platform is provided with two groups of first monitoring mechanisms and second monitoring mechanisms which are symmetrically arranged along the central line of the supporting upright post, the first monitoring mechanisms comprise vertical rotary drums A which provide support for an overhanging transverse arm A, driving mechanisms A which drive the vertical rotary drums A to rotate around the central line of the vertical rotary drums A are arranged in the vertical rotary drums A, the bottoms of the vertical rotary drums A are rotationally connected with a connecting base A on the upper surface of the upper platform through first bearings, the outer wall of the vertical rotary drums A is provided with horizontal overhanging transverse arms A, and one ends of the overhanging transverse arms A, which are far away from the vertical rotary drums A, are provided with image pickup mechanisms A.
The first monitoring mechanism and the second monitoring mechanism are installed at a high place through upright posts, the first monitoring mechanism and the second monitoring mechanism work independently, a shooting object of a shooting mechanism A of the first monitoring mechanism is the ground in the outward extending direction of an overhanging cross arm A, information such as traffic conditions on a port transportation line is shot and collected, the driving mechanism A is controlled to drive the vertical rotary drum to rotate, the vertical rotary drum A drives the shooting mechanism A to rotate around the central line of the vertical rotary drum A through the overhanging cross arm A, the direction of the shooting mechanism A is adjusted, and the shooting direction of the shooting mechanism A is changed, so that the camera has a wider monitoring field; in addition, in strong wind weather, the adjusting direction of the overhanging cross arm A can be kept consistent with the wind direction, so that the shaking influence of strong wind on the overhanging cross arm A is reduced as much as possible.
Preferably, the second monitoring mechanism comprises a vertical rotary drum B for providing support for the overhanging transverse arm B, a driving mechanism B for driving the vertical rotary drum B to rotate around the central line of the vertical rotary drum B is installed in the vertical rotary drum B, the bottom of the vertical rotary drum B is rotationally connected with a connecting base B on the upper surface of the upper platform through a second bearing, a horizontal overhanging transverse arm B is installed on the outer wall of the vertical rotary drum B, a camera shooting mechanism B is installed at one end, far away from the vertical rotary drum B, of the overhanging transverse arm B, a shooting object of the camera shooting mechanism B is the ground in the outward extending direction of the overhanging transverse arm B, the driving mechanism B is controlled to drive the vertical rotary drum B to rotate, the camera shooting direction of the vertical rotary drum B is changed, the situation that a camera at a dead angle part cannot shoot is avoided, the camera shooting view is wider, bearable wind power is increased, and the monitoring device can still stably run under the strong port wind condition.
Preferably, the driving mechanism A is an outer rotor motor and comprises an outer rotor and a motor shaft arranged in the center of the outer rotor, the outer rotor and the vertical rotary drum A are coaxially arranged and connected into a whole, the motor shaft is provided with two connecting ends, the bottom connecting ends of the motor shaft are fixed at the center position of the upper surface of the connecting base A, the top connecting ends of the motor shaft are provided with insulating upper covers A, the insulating upper covers A are covered on the top opening of the vertical rotary drum A and can ensure relative rotation, the bottoms of the motor shaft are provided with conductive slip rings for supplying power for the driving mechanism A and the shooting mechanism A, rotor wires of the conductive slip rings are connected with the driving mechanism A and wiring ends of the shooting mechanism A through corresponding cables, and stator wires of the conductive slip rings are connected with mains supply through corresponding cables.
Preferably, the camera mechanism A comprises an outer cover fixedly connected with the overhanging cross arm A, a camera is arranged in the outer cover, a channel for the camera to extend out for shooting is formed in the outer cover, and the outer cover has a protective effect. Preferably, the second monitoring mechanism has the same structure as the first monitoring mechanism, and the shooting direction is the same, so that the second monitoring mechanism has wider monitoring vision.
Preferably, the tops of the insulating upper cover A and the insulating upper cover B are respectively provided with a lightning rod, and the lightning rods are electrically connected with the upper platform through corresponding wires.
Compared with the prior art, the utility model has the following beneficial effects:
according to the port transportation monitoring equipment, the driving mechanism A is controlled to drive the vertical rotary drum to rotate, the vertical rotary drum A drives the image pickup mechanism A to rotate around the central line of the vertical rotary drum A through the overhanging cross arm A, the direction of the image pickup mechanism A is adjusted, and the shooting direction of the image pickup mechanism A is changed, so that the port transportation monitoring equipment has a wider monitoring visual field.
In addition, in strong wind weather, the adjusting direction of the overhanging cross arm A is consistent with the wind direction, so that the shaking influence of strong wind on the overhanging cross arm A can be reduced as much as possible.
According to the monitoring equipment for port transportation, the first monitoring mechanism and the second monitoring mechanism are arranged at the high position through the upright posts, and the first monitoring mechanism and the second monitoring mechanism work independently, so that the monitoring equipment has a wider monitoring visual field.
According to the port transportation monitoring equipment, the outer rotor and the vertical rotary drum A are coaxially arranged and connected into a whole, the motor shaft is provided with two connecting ends, the bottom connecting ends of the motor shaft are fixed at the central position of the upper surface of the connecting base A, the top connecting ends of the motor shaft are provided with insulating upper covers A, the insulating upper covers A are covered on the top openings of the vertical rotary drum A and can ensure relative rotation, the bottoms of the motor shaft are provided with conductive slip rings for supplying power for the driving mechanism A and the shooting mechanism A, rotor wires of the conductive slip rings are connected with the connecting ends of the driving mechanism A and the shooting mechanism A through corresponding cables, and stator wires of the conductive slip rings are connected with mains supply through corresponding cables.
According to the monitoring equipment for port transportation, the camera shooting mechanism A comprises the outer cover fixedly connected with the overhanging cross arm A, the camera is arranged in the outer cover, a channel for the camera to stretch out for shooting is formed in the outer cover, and the outer cover has a protective effect.
According to the port transportation monitoring equipment, the second monitoring mechanism and the first monitoring mechanism are identical in structure and shooting direction, so that the port transportation monitoring equipment has a wider monitoring field of view.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic view of the external structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is an enlarged view of the first monitoring mechanism of FIG. 1;
figure 4 is a block diagram of the utility model with the addition of lightning rods.
In the figure: 1. the device comprises a supporting upright post 2, a mounting base 3, an upper platform 4, a first monitoring mechanism 4.1, a vertical rotary drum A4.2, a driving mechanism A4.3, a photographing mechanism A4.4, an overhanging cross arm A4.5, a connecting base A4.6, an insulating upper cover A4.7, a first bearing 4.8, a conductive slip ring 5 and a second monitoring mechanism.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the present utility model is further illustrated by the following examples, which are not intended to be limiting, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Example 1
As shown in fig. 1-3, the monitoring equipment for port transportation comprises a supporting upright 1, the supporting upright 1 is fixedly installed on the ground through a mounting base 2 at the bottom of the supporting upright 1, an upper platform 3 is installed at the top of the supporting upright 1, two groups of first monitoring mechanisms and second monitoring mechanisms which are symmetrically arranged along the central line of the supporting upright 1 are installed on the upper surface of the upper platform 3, the first monitoring mechanisms comprise vertical rotary drums a4.1 for providing support for overhanging cross arms a4.4, a driving mechanism A4.2 for driving the vertical rotary drums a4.1 to rotate around the central line of the vertical rotary drums a4.1 is installed in the vertical rotary drums a4.1, the bottom of the vertical rotary drums a4.1 is rotationally connected with a connecting base A4.5 on the upper surface of the upper platform 3 through a first bearing 4.7, horizontal overhanging cross arms a4.4 are installed on the outer wall of the vertical rotary drums a4.1, and one ends of the overhanging cross arms a 4.4.4 are far away from the vertical rotary drums a4.1 are provided with image pickup mechanisms a4.3.
The first monitoring mechanism and the second monitoring mechanism are installed at a high place through upright posts, the first monitoring mechanism and the second monitoring mechanism work independently, a shooting object of the shooting mechanism A4.3 is the ground of an outward extending direction of an overhanging cross arm A4.4, information such as traffic conditions on a port transportation line is shot and collected, the driving mechanism A4.2 is controlled to drive the vertical rotary drum A4.1 to rotate, the vertical rotary drum A4.1 drives the shooting mechanism A4 to rotate around the central line of the vertical rotary drum A4.1 through the overhanging cross arm A4.4, and the shooting direction of the shooting mechanism A4.3 is changed, so that the camera has a wider monitoring field of view.
In addition, in strong wind weather, the adjusting direction of the overhanging cross arm A can be kept consistent with the wind direction, so that the shaking influence of strong wind on the overhanging cross arm A is reduced as much as possible.
Example two
As shown in fig. 1-3, the monitoring equipment for port transportation comprises a supporting upright 1, the supporting upright 1 is fixedly installed on the ground through a mounting base 2 at the bottom of the supporting upright 1, an upper platform 3 is installed at the top of the supporting upright 1, two groups of first monitoring mechanisms and second monitoring mechanisms which are symmetrically arranged along the central line of the supporting upright 1 are installed on the upper surface of the upper platform 3, the first monitoring mechanisms comprise vertical rotary drums a4.1 for providing support for overhanging cross arms a4.4, a driving mechanism A4.2 for driving the vertical rotary drums a4.1 to rotate around the central line of the vertical rotary drums a4.1 is installed in the vertical rotary drums a4.1, the bottom of the vertical rotary drums a4.1 is rotationally connected with a connecting base A4.5 on the upper surface of the upper platform 3 through a first bearing 4.7, horizontal overhanging cross arms a4.4 are installed on the outer wall of the vertical rotary drums a4.1, and one ends of the overhanging cross arms a 4.4.4 are far away from the vertical rotary drums a4.1 are provided with image pickup mechanisms a4.3.
Further, the second monitoring mechanism comprises a vertical rotary drum B for providing support for the overhanging transverse arm B, a driving mechanism B for driving the vertical rotary drum B to rotate around the central line of the vertical rotary drum B is arranged in the vertical rotary drum B, the bottom of the vertical rotary drum B is rotationally connected with a connecting base B on the upper surface of the upper platform 3 through a second bearing, a horizontal overhanging transverse arm B is arranged on the outer wall of the vertical rotary drum B, one end of the overhanging transverse arm B far away from the vertical rotary drum B is provided with a shooting mechanism B, a shooting object of the shooting mechanism B is the ground in the outward extending direction of the overhanging transverse arm B, the driving mechanism B is controlled to drive the vertical rotary drum B to rotate, the vertical rotary drum B drives the shooting mechanism B to rotate around the central line of the vertical rotary drum B through the overhanging transverse arm B, the situation that a dead angle part camera cannot shoot is avoided, the situation that the camera has wider shooting view is avoided, bearable wind power is increased, and the monitoring equipment can still stably run under the harbour strong wind condition.
Further, the driving mechanism a4.2 is an external rotor motor and comprises an external rotor and a motor shaft arranged in the center of the external rotor, the external rotor and the vertical rotary drum a4.1 are coaxially arranged and connected into a whole, the motor shaft is provided with two connecting ends, the bottom connecting end of the motor shaft is fixed at the center position of the upper surface of the connecting base A4. The top connecting end of the motor shaft is provided with an insulating upper cover a4.6, the insulating upper cover a4.6 is covered on the top opening of the vertical rotary drum a4.1 and can ensure relative rotation, the bottom of the motor shaft is provided with a conductive slip ring 4.8 for supplying power to the driving mechanism a4.2 and the shooting mechanism a4.3, rotor wires of the conductive slip ring 4.8 are connected with the driving mechanism a4.2 and the wiring end of the shooting mechanism a4.3 through corresponding cables, stator wires of the conductive slip ring 4.8 are connected with commercial power through corresponding cables, and the conductive slip ring 4.8 can supply power to the vertical rotary drum a4.1 and the shooting mechanism a in a rotating state. Further, the image capturing mechanism a4.3 includes a housing fixedly connected to the overhanging cross arm a 4.4.
Further, be provided with the camera in the dustcoat, set up the passageway that supplies the camera to stretch out the shooting on the dustcoat, the dustcoat has the guard action.
Further, the camera is an existing wireless camera, and a wireless network is adopted for information transmission.
Further, the second monitoring mechanism 5 has the same structure as the first monitoring mechanism 4, and the shooting direction is the same, so that the second monitoring mechanism has wider monitoring vision.
Referring to fig. 4, the third embodiment is different from the second embodiment in that the tops of the insulating upper cover a4.6 and the insulating upper cover B are respectively provided with a lightning rod, and the lightning rods are electrically connected with the upper platform 3 through corresponding wires, so that adverse effects caused by lightning strike are avoided.
According to the port transportation monitoring equipment, the driving mechanism A is controlled to drive the vertical rotary drum to rotate, the vertical rotary drum A drives the imaging mechanism A to rotate around the central line of the vertical rotary drum A through the overhanging cross arm A, the direction of the imaging mechanism A is adjusted, the shooting direction of the imaging mechanism A is changed, the monitoring equipment has a wider monitoring visual field, in addition, in strong wind weather, the overhanging cross arm A is adjusted to be consistent with the wind direction, and the shaking influence of strong wind on the overhanging cross arm A can be reduced as much as possible.
According to the port transportation monitoring equipment, the outer rotor and the vertical rotary drum A are coaxially arranged and connected into a whole, the motor shaft is provided with two connecting ends, the bottom connecting ends of the motor shaft are fixed at the central position of the upper surface of the connecting base A, the top connecting ends of the motor shaft are provided with insulating upper covers A, the insulating upper covers A are covered on the top openings of the vertical rotary drum A and can ensure relative rotation, the bottoms of the motor shaft are provided with conductive slip rings for supplying power for the driving mechanism A and the shooting mechanism A, rotor wires of the conductive slip rings are connected with the connecting ends of the driving mechanism A and the shooting mechanism A through corresponding cables, and stator wires of the conductive slip rings are connected with mains supply through corresponding cables.
According to the monitoring equipment for port transportation, the camera shooting mechanism A comprises the outer cover fixedly connected with the overhanging cross arm A, the camera is arranged in the outer cover, a channel for the camera to stretch out for shooting is formed in the outer cover, and the outer cover has a protective effect.
According to the port transportation monitoring equipment, the second monitoring mechanism and the first monitoring mechanism are identical in structure and shooting direction, so that the port transportation monitoring equipment has a wider monitoring field of view.
The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (5)
1. The utility model provides a monitoring equipment for port transportation, includes the support post, the support post passes through the installation base fixed mounting of its bottom subaerial, upper platform, its characterized in that are installed at the top of support post: the upper surface of the upper platform is provided with two groups of first monitoring mechanisms and second monitoring mechanisms which are symmetrically arranged along the central line of the supporting upright post, the first monitoring mechanisms comprise vertical rotary drums A which provide support for an overhanging transverse arm A, driving mechanisms A which drive the vertical rotary drums A to rotate around the central line of the vertical rotary drums A are arranged in the vertical rotary drums A, the bottoms of the vertical rotary drums A are rotationally connected with a connecting base A on the upper surface of the upper platform through first bearings, the outer wall of the vertical rotary drums A is provided with horizontal overhanging transverse arms A, and one ends of the overhanging transverse arms A, which are far away from the vertical rotary drums A, are provided with image pickup mechanisms A.
2. The monitoring device for port transportation according to claim 1, wherein the second monitoring mechanism comprises a vertical rotary drum B for providing support for an overhanging transverse arm B, a driving mechanism B for driving the vertical rotary drum B to rotate around the central line thereof is installed in the vertical rotary drum B, the bottom of the vertical rotary drum B is rotatably connected with a connecting base B on the upper surface of the upper platform through a second bearing, a horizontal overhanging transverse arm B is installed on the outer wall of the vertical rotary drum B, and an image pickup mechanism B is installed at one end of the overhanging transverse arm B far away from the vertical rotary drum B.
3. The monitoring device for port transportation according to claim 2, wherein the driving mechanism a is an external rotor motor comprising an external rotor and a motor shaft arranged in the center of the external rotor, the external rotor and the vertical rotary drum a are coaxially arranged and connected into a whole, the motor shaft is provided with two connecting ends, the bottom connecting end of the motor shaft is fixed in the center position of the upper surface of the connecting base a, the top connecting end of the motor shaft is provided with an insulating upper cover a, the insulating upper cover a is covered on the top opening of the vertical rotary drum a and can ensure relative rotation, the bottom of the motor shaft is provided with a conductive slip ring for supplying power for the driving mechanism a and the camera mechanism a, rotor wires of the conductive slip ring are connected with the wiring ends of the driving mechanism a and the camera mechanism a through corresponding cables, and stator wires of the conductive slip ring are connected with the commercial power through corresponding cables.
4. The monitoring device for port transportation according to claim 3, wherein the camera shooting mechanism a comprises an outer cover fixedly connected with the overhanging cross arm a, a camera is arranged in the outer cover, and a channel for the camera to stretch out for shooting is formed in the outer cover.
5. The monitoring device for port transportation according to claim 4, wherein the second monitoring mechanism is identical in structure and different in shooting direction from the first monitoring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476840.XU CN219755914U (en) | 2023-03-14 | 2023-03-14 | Monitoring equipment for port transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476840.XU CN219755914U (en) | 2023-03-14 | 2023-03-14 | Monitoring equipment for port transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755914U true CN219755914U (en) | 2023-09-26 |
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ID=88077396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320476840.XU Active CN219755914U (en) | 2023-03-14 | 2023-03-14 | Monitoring equipment for port transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755914U (en) |
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2023
- 2023-03-14 CN CN202320476840.XU patent/CN219755914U/en active Active
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