CN110933366A - High-resolution image integrated acquisition and wireless transmission system in outdoor environment - Google Patents
High-resolution image integrated acquisition and wireless transmission system in outdoor environment Download PDFInfo
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- CN110933366A CN110933366A CN201911084869.8A CN201911084869A CN110933366A CN 110933366 A CN110933366 A CN 110933366A CN 201911084869 A CN201911084869 A CN 201911084869A CN 110933366 A CN110933366 A CN 110933366A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a high-resolution image integrated acquisition and wireless transmission system in an outdoor environment, which comprises image acquisition equipment, a wireless network and a monitoring computer/terminal, wherein the image acquisition equipment, the wireless network and the monitoring computer/terminal are applied to the outdoor environment fixed in a box body; the image acquisition equipment acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope in real time, stores the image information, the GPS position information and the time information in a local memory and serves as a server in a wireless network; the monitoring computer/terminal is communicated with the image acquisition equipment through a wireless network, accesses the image acquisition equipment in a client form and acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope. The invention overcomes the problem of imaging quality reduction caused by wind acting on cables through wireless network high-resolution image information, reduces camera vibration through mechanical integrated design, and meets the requirement of anti-vibration image data transmission in outdoor environment.
Description
Technical Field
The invention relates to the technical field of image acquisition and wireless transmission, in particular to a high-resolution image integrated acquisition and wireless transmission system in an outdoor environment.
Background
The image acquisition device under current outdoor environment need use the cable to supply power, and image information also need be transmitted to the computer by the data transmission cable, and wind can act on power supply and data transmission cable, causes the camera shake, and then influences the imaging quality. This situation is more severe for high resolution image acquisition. For example, in the surface measurement of a medium-long distance large scene, an astronomical telescope is required to be combined with a high-resolution industrial camera to photograph a large target with a distance of dozens of meters to hundreds of meters, the detection distance of the resolution is up to 0.5mm at 100m, and the camera shake caused by wind can cause the resolution not to meet the requirements.
Disclosure of Invention
The invention aims to provide an integrated acquisition and wireless transmission system for high-resolution images in an outdoor environment, which changes wired data transmission into wireless transmission and is particularly suitable for acquiring and wirelessly transmitting surface measurement image data of a large, medium and long distance scene in the outdoor environment by assisting with an integrated design on a mechanical structure to reduce the adverse effect of vibration on imaging quality.
The technical scheme adopted for realizing the purpose of the invention is as follows:
an integrated acquisition and wireless transmission system for high-resolution images in outdoor environment comprises:
the system comprises image acquisition equipment, a wireless network and a monitoring computer/terminal for receiving image data, wherein the image acquisition equipment, the wireless network and the monitoring computer/terminal are applied in an outdoor environment; the image acquisition equipment acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope in real time, stores the image information, the GPS position information and the time information in a local memory and serves as a server in a wireless network; the monitoring computer/terminal is communicated with the image acquisition equipment through a wireless network, accesses the image acquisition equipment in a client form and acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope;
the image acquisition equipment comprises an astronomical telescope optical path interface, a high-resolution industrial camera, an image acquisition processing transmission plate, a battery power supply module, a wireless module, an IEEE1394 cable and a power supply cable, wherein the astronomical telescope optical path interface is fixed in the box body;
the astronomical telescope optical path interface is used for being connected with an eyepiece of an astronomical telescope and ensuring that a long-distance large target can clearly form an image on a high-resolution industrial camera through an optical lens group, the high-resolution industrial camera is in communication connection with the image acquisition processing transmission plate through an IEEE1394 cable, the battery power supply module is connected with the image acquisition processing transmission plate through a power cable, and the image acquisition processing transmission plate is in wireless connection with the wireless module.
As an embodiment, the bottom of the box body is provided with a balancing weight, so that the center of gravity of the box body is positioned at the bottom of the box body.
As an embodiment, the wireless module is a 5G Wifi antenna.
As an embodiment, the image acquisition processing transmission board comprises an IEEE1394 image acquisition card, an 802.11ac wireless network card, an embedded processor and a GPS positioning module, wherein the IEEE1394 image acquisition card, the 802.11ac wireless network card and the GPS positioning module are respectively connected with the embedded processor.
As an embodiment, the IEEE1394 image acquisition card and the 802.11ac wireless network card are connected with the embedded processor through a Mini PCIE bus, the speed of the Mini PCIE bus is 2000Mbit/s, and the GPS positioning module is communicated with the embedded processor through an RS232 serial port.
As one embodiment, the embedded processor 330 runs the Linux embedded operating system on the embedded processor using a high performance 4-core 64-bit ARMv8 SOC.
As an embodiment, the IEEE1394 image acquisition card and the high-resolution industrial camera are connected by adopting IEEE1394, the resolution of an image acquired by the high-resolution industrial camera is not lower than 2040 x 2040 pixels, and the rate can reach 15 frames/s.
As an embodiment, the wireless network adopts a 5G Wifi network conforming to the 802.11ac standard, adopts a 3 × 3MIMO (Multiple-Input Multiple-Output) network configuration, has a transmission layer of a TCP or UDP protocol, has a rate of 3466.8Mbit/s, and directly transmits original uncompressed image data acquired by the high-resolution industrial camera and conforming to the bmp image format requirement to the monitoring computer/terminal.
The invention changes the wired data transmission into wireless transmission and is assisted with the integrated design on the mechanical structure, thereby reducing the adverse effect of vibration on the imaging quality.
Drawings
FIG. 1 is a schematic structural diagram of a high resolution image integrated acquisition and wireless transmission system in an outdoor environment according to the present invention;
FIG. 2 is a schematic diagram of an image capture device under an embodiment;
fig. 3 is a schematic diagram of an image capture processing transmission plate of an image capture device according to an embodiment.
In the figure: 100-astronomical telescope; 110-an image acquisition device; 120-a wireless network; 130-a monitoring computer; 140-a monitoring terminal; 210-a box body; 220-astronomical telescope optical path interface; 230-high resolution industrial camera; 240-IEEE1394 cable; 250-an image acquisition processing transmission plate; 260-power cables; 270-a battery power supply module; 280-counterweight; 290-5G Wifi antenna; 310-IEEE1394 image acquisition card; 320-802.11ac wireless network card; 330-an embedded processor; 340-GPS location module.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the system for integrally acquiring and wirelessly transmitting a high-resolution image in an outdoor environment of the present invention includes an image acquisition device 110, a wireless network 120, a monitoring computer 130 for receiving image data, and a monitoring terminal 140: the image collecting device acquires the image information, the GPS position information and the time information of the astronomical telescope 100 in real time, stores the image information, the GPS position information and the time information in a local memory, serves as a server in a wireless network, and the monitoring computer 130/terminal 140 communicates with the image collecting device 110 through the wireless network 120 to access the image collecting device in a client form to acquire the image information, the GPS position information and the time information of the astronomical telescope 100.
As an embodiment, the image capturing device 110 places the astronomical telescope optical path interface, the high-resolution industrial camera, the image capturing board, the image data processing board, the wireless data transmission board, and the battery power supply module in a box, and can work independently without connecting power supply and data transmission cables, and wind disturbance in outdoor environment has no influence on the imaging quality of the camera.
Furthermore, as an embodiment, the box body forms a closed environment according to the integrated design requirement, all parts of the astronomical telescope optical path interface, the high-resolution industrial camera, the image acquisition board, the image data processing board, the wireless data transmission board and the battery power supply module are connected and fixed in the closed box body through power supply and data transmission cables through mechanical fixing clamps, and the gravity center of the whole box body is positioned at the bottom of the box body, so that the camera vibration caused by wind disturbance in the outdoor environment is reduced.
Further, as an embodiment, the wireless network card adopts a 5G Wifi wireless transmission mode, and certainly, other wireless networks may also be adopted to implement the connection, which is not limited specifically.
Specifically, as a specific embodiment, referring to fig. 2, the image capturing device 110 includes a box 210, an astronomical telescope optical path interface 220, a high resolution industrial camera 230, an IEEE1394 cable 240, an image capturing processing transmission board 250, a power cable 260, a battery power supply module 270, a counterweight 280, and a 5G Wifi antenna 290. The image acquisition device 110 adopts an integrated mechanical design, the astronomical telescope optical path interface 220, the high-resolution industrial camera 230, the IEEE1394 cable 240, the image acquisition processing transmission plate 250, the power cable 260, the battery power supply module 270 and the like are fixed in the box body 210 by using mechanical fixtures, and wind disturbance in an outdoor environment acts on the box body and does not act on a power supply and the IEEE1394 cable independently, so that the camera shake does not occur. Each component in the box body is provided with a damping pad, the bottom of the box body is provided with a balance weight 280, and the whole gravity center is positioned at the lower part of the box body, so that the capability of resisting wind disturbance is further improved. The astronomical telescope optical path interface 220 is used for connecting with an eyepiece of an astronomical telescope and ensuring that a large target with a distance of dozens of meters to hundreds of meters can be clearly imaged on the high-resolution industrial camera 230 through an optical lens group.
As an embodiment, the image capturing device 110 is externally connected with 3 5G Wifi antennas 290, and communicates with the 5G Wifi wireless network 120. The wireless network 120 adopts a 5G Wifi network conforming to the 802.11ac standard, adopts 3 × 3MIMO (Multiple-Input Multiple-Output) network configuration, the transmission layer is a TCP or UDP protocol, the rate can reach 3466.8Mbit/s, which is higher than the rate of 786.4Mbit/s of IEEE1394, and the original uncompressed image data conforming to the bmp image format requirement collected by the high-resolution industrial camera can be directly transmitted to the monitoring computer 130/terminal 140 through the wireless network. Since the image capturing device 110 and the monitoring computer 130/terminal 140 communicate via a wireless network, the wind disturbance in the outdoor environment will not affect the imaging of the camera.
Referring to fig. 3, as an embodiment, the image capture processing transmission board 250 as a core module of the image capture device 110 includes an IEEE1394 image capture card 310, an 802.11ac wireless network card 320, an embedded processor 330, and a GPS positioning module 340, and preferably employs an embedded processor and an embedded operating system. The IEEE1394 image acquisition card 310 and the 802.11ac wireless network card 320 are connected with the embedded processor 330 through a Mini PCIE bus, the speed of the Mini PCIE bus is 2000Mbit/s and is far higher than the camera IEEE1394 speed, and the image acquisition speed of the camera cannot be influenced. The embedded processor 330 runs the Linux embedded operating system on the embedded processor using a high performance 4-core 64-bit ARMv8 SOC. The GPS location module 340 communicates with the embedded processor 330 via an RS232 serial port.
Preferably, the IEEE1394 image acquisition card and the high-resolution industrial camera are connected by adopting IEEE 1394. Further, as an embodiment, the resolution of the image collected by the high-resolution industrial camera is not lower than 2040 × 2040 pixels, and the rate can reach 15 frames/s, and since IEEE1394 is an international standard protocol, other cameras conforming to the standard can be used.
Further, as an embodiment, the battery power supply module includes a lithium battery, a DC \ DC module, and a charger.
As an embodiment, the system for integrally acquiring and wirelessly transmitting a high-resolution image in an outdoor environment according to an embodiment of the present invention may include a plurality of monitoring computers/terminals:
the image acquisition equipment can receive image data transmission requests sent by a plurality of monitoring computers/terminals and wirelessly transmit the image data to the plurality of monitoring computers/terminals through 5G Wifi. The monitoring computer/terminal receives image data and initiates the image data transmission request.
The image capturing device 110 workflow is as follows: the equipment automatically runs according to a set program and parameters after being started, the embedded processor 330 acquires original image data of the high-resolution industrial camera 230 through an IEEE1394 image acquisition card 310, converts the original data into an image file conforming to an 8-bit gray scale bmp format, acquires a timestamp by reading RTC module data built in the embedded processor 330, reads data of a GPS positioning module 340 through an RS232 serial port to obtain position information such as longitude and latitude, and packs the image file, the timestamp and the position information and stores the packed image file, the timestamp and the position information in a local memory. On the other hand, the embedded processor 330 configures the 802.11ac wireless network card 320 into an AP (Access Point) mode, and runs a server program, waits for a data request signal sent by the monitoring computer 130/terminal 140, and upon receiving the data request signal, the embedded processor 330 transmits the packaged image file, the timestamp and the location information to the monitoring computer 130/terminal 140 through a wireless network, and the transport layer protocol may use a TCP or UDP protocol. TCP is a connection-oriented protocol, i.e. before sending and receiving data, a reliable connection must be established with the other party, which has high reliability but low transmission efficiency. UDP is a non-connection protocol, and a source end and a terminal do not establish a connection before transmitting data, and the transmission efficiency is high but the reliability is poor. The embedded processor 330 supports both TCP and UDP protocols, with either TCP or UDP protocol being selected as determined by the monitoring computer 130/terminal 140.
The monitoring computer 130/terminal 140 workflow is as follows: the monitoring computer 130/terminal 140 configures the wireless network card into Managed mode, then sets the transport layer protocol as TCP or UDP mode, then sends a data request signal to the image acquisition device 110 through the wireless network, starts to receive data after receiving a response signal of the image acquisition device 110, unpacks the data after receiving the data, extracts an image file, a timestamp and position information from the data, and finally performs subsequent processing on the file and the information.
According to the high-resolution image integrated acquisition and wireless transmission system in the outdoor environment, the problem of imaging quality reduction caused by the fact that wind acts on cables is solved through wireless network high-resolution image information, and camera vibration is reduced through mechanical integrated design, so that the requirement of vibration-proof image data transmission in the outdoor environment is met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An integrated acquisition and wireless transmission system for high-resolution images in outdoor environment is characterized by comprising image acquisition equipment, a wireless network and a monitoring computer/terminal for receiving image data, wherein the image acquisition equipment is applied in the outdoor environment; the image acquisition equipment acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope in real time, stores the image information, the GPS position information and the time information in a local memory and serves as a server in a wireless network; the monitoring computer/terminal is communicated with the image acquisition equipment through a wireless network, accesses the image acquisition equipment in a client form and acquires image information, GPS (global positioning system) position information and time information of the astronomical telescope;
the image acquisition equipment comprises an astronomical telescope optical path interface, a high-resolution industrial camera, an image acquisition processing transmission plate, a battery power supply module, a wireless module, an IEEE1394 cable and a power supply cable, wherein the astronomical telescope optical path interface is fixed in the box body;
the astronomical telescope optical path interface is used for being connected with an eyepiece of an astronomical telescope and ensuring that a long-distance large target can clearly form an image on a high-resolution industrial camera through an optical lens group, the high-resolution industrial camera is in communication connection with the image acquisition processing transmission plate through an IEEE1394 cable, the battery power supply module is connected with the image acquisition processing transmission plate through a power cable, and the image acquisition processing transmission plate is in wireless connection with the wireless module.
2. The system of claim 1, wherein a weight is disposed at the bottom of the housing to position the center of gravity of the housing at the bottom of the housing.
3. The system for integrally collecting and wirelessly transmitting a high-resolution image in an outdoor environment according to claim 1, wherein the wireless module is a 5G Wifi antenna.
4. The system of claim 1, wherein the image acquisition processing transmission board comprises an IEEE1394 image acquisition card, an 802.11ac wireless network card, an embedded processor, and a GPS positioning module, and the IEEE1394 image acquisition card, the 802.11ac wireless network card, and the GPS positioning module are respectively connected to the embedded processor.
5. The system of claim 4, wherein the IEEE1394 image acquisition card and the 802.11ac wireless network card are connected to the embedded processor through a MiniPCE bus, the MiniPCE bus has a rate of 2000Mbit/s, and the GPS positioning module communicates with the embedded processor through an RS232 serial port.
6. The system for integrally acquiring and wirelessly transmitting a high-resolution image in an outdoor environment according to claim 4, wherein the embedded processor 330 runs a Linux embedded operating system on the embedded processor by using a high-performance 4-core 64-bit ARMv8 SOC.
7. The system according to claim 4, wherein the IEEE1394 image acquisition card and the high-resolution industrial camera are connected via IEEE1394, the resolution of the image acquired by the high-resolution industrial camera is not lower than 2040 x 2040 pixels, and the rate of the image acquired by the high-resolution industrial camera can reach 15 frames/s.
8. The system of claim 1, wherein the wireless network is configured by a 5G Wifi network conforming to 802.11ac standard, a 3 × 3MIMO (Multiple-input Multiple-Output) network, the transmission layer is a TCP or UDP protocol, the rate of the transmission layer is 3466.8Mbit/s, and the original uncompressed image data acquired by the high-resolution industrial camera and conforming to the bmp image format requirement is directly transmitted to the monitoring computer/terminal.
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