CN110677814B - Wireless communication method based on density analysis - Google Patents
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- CN110677814B CN110677814B CN201910383446.XA CN201910383446A CN110677814B CN 110677814 B CN110677814 B CN 110677814B CN 201910383446 A CN201910383446 A CN 201910383446A CN 110677814 B CN110677814 B CN 110677814B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration by the use of histogram techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
- H04L43/045—Processing captured monitoring data, e.g. for logfile generation for graphical visualisation of monitoring data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B13/00—Sledges with runners
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention relates to a wireless communication method based on density analysis, which comprises the following steps: detecting each image area with the similarity exceeding the shape similarity of the standard sled pattern from the self-adaptive processing image based on the standard sled pattern by using a similarity detection device, and determining the corresponding sled density based on the respective position of each image area in the self-adaptive processing image; and using the regulation and control starting equipment to wirelessly send a distance regulation and control instruction to a remote ski vehicle management center when the received density of the ski vehicle is greater than or equal to a preset density level.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a wireless communication method based on density analysis.
Background
Wireless power and wireless medical treatment are two major applications of wireless communication. Wireless power is the transfer of power from a power source to another device without a built-in power source, using a wire. There are two basic wireless power supply methods, which can use beam/laser, radio or microwave transmission, or use near field induction. Electromagnetic wave fields are used in several ways. New technologies such as wireless body area networks (MBAN) can monitor blood pressure, heartbeat, oxygen concentration and body temperature by using wireless technologies. The wireless body area network sends low power wireless signals to the receiver for transmission to the monitoring device or the nursing station. This technique reduces the risk of infection, either intentionally or unintentionally, or problems resulting from a broken wired connection.
Disclosure of Invention
The invention has the following two important points:
(1) performing gradient analysis on the image to obtain each image area corresponding to each closed curve, performing adaptive Kriging interpolation processing on the image area corresponding to the closed curve, and not performing interpolation processing on other image contents, thereby reducing the image operation amount while ensuring the interpolation effect;
(2) and the regulation and control starting equipment is used for wirelessly sending a distance regulation and control instruction to a remote sled management center when the received density of the sled is greater than or equal to a preset density grade, so that the automation level of sled sliding channel management is improved.
According to an aspect of the present invention, there is provided a density analysis-based wireless communication method, the method including using a density analysis-based wireless communication system to wirelessly transmit a distance adjustment command to a remote sled management center when a received density of a sled is greater than or equal to a preset density level, the density analysis-based wireless communication system including:
the similarity detection device is arranged above a ski vehicle sliding channel, is connected with the adaptive interpolation device, and is used for detecting each image area with the similarity exceeding the shape of the standard ski vehicle pattern from the adaptive processing image based on the standard ski vehicle pattern and determining the corresponding ski vehicle density based on the position of each image area in the adaptive processing image;
the regulation and control starting device is connected with the similarity detection device and is used for wirelessly sending a distance regulation and control instruction to a remote sled management center when the density of the received sled is greater than or equal to a preset density level;
the panoramic shooting equipment is arranged above the ski vehicle sliding channel and used for carrying out image shooting operation on the ski vehicle sliding channel so as to obtain and output a corresponding field panoramic image;
the signal analysis equipment is arranged near the panoramic shooting equipment, is connected with the panoramic shooting equipment, and is used for receiving the field panoramic image, acquiring the gray value of each pixel point in the field panoramic image, and executing the following actions aiming at each pixel point: judging each gradient from the gray value to each pixel point around, judging the gradient as an edge pixel point when each gradient is greater than or equal to a preset gradient threshold, and judging the pixel point as a non-edge pixel point when each gradient is less than the preset gradient threshold;
the signal analysis equipment is also used for connecting all edge pixel points in the field panoramic image to obtain one or more closed curves, and respectively dividing one or more image areas from the field panoramic image based on the one or more closed curves;
the repeatability extracting device is connected with the signal analyzing device and used for executing the following actions for each image area: determining the repetition degree of each pixel point based on each pixel value of each pixel point;
and the adaptive interpolation device is respectively connected with the signal analysis device and the repeatability extraction device and is used for executing the adaptive interpolation action only on each divided image area in the live panoramic image and not executing the adaptive interpolation action on the areas except the one or more divided image areas in the live panoramic image.
The wireless communication method based on density analysis has compact structure and effective control. When the received density of the skibob is greater than or equal to the preset density level, the spacing regulation and control instruction is wirelessly sent to the skibob management center at the far end, so that the automation level of the skibob sliding channel management is improved.
Detailed Description
Embodiments of the present invention will be described in detail below.
Mobile communication technology is evolving at a rapid pace from first generation analog communication systems to second generation digital communication systems, and later 3G, 4G, 5G. Among the second generation mobile communication technologies, GSM is most widely used. However, the GSM system can only perform data exchange in the circuit domain, and the highest transmission rate is 9.6kbit/s, which is difficult to meet the requirement of data service. Therefore, the European Telecommunications Standards Institute (ETSI) introduced GPRS (General Packet Radio Service).
Packet switching is an important data transmission technology on computer networks. In order to realize the support from the traditional voice service to the emerging data service, the GPRS superposes a network supporting high-speed packet data on the basis of the original GSM network, provides functions of WAP browsing (browsing Internet pages), E-mail and the like for users, promotes the first leap development of the mobile data service, and realizes the perfect combination of the mobile communication technology and the data communication technology (especially the Internet technology).
At present, the sled car on the sled car slides the passageway and slides speed very fast, and you catch up with, great collision accident appears very easily, and before the collision accident appears, the density increase of sled car is the effective sign that the accident appears, consequently, just in time carries out the interval regulation and control of sled car when discovering the sled car density too big, is the effective means of avoiding the collision accident. However, no related technical solution currently exists.
In order to overcome the defects, the invention builds a wireless communication method based on density analysis, and the method comprises the step of wirelessly sending a distance regulation and control instruction to a remote sled management center by using a wireless communication system based on density analysis when the received density of the sled is greater than or equal to a preset density level. The wireless communication system based on the density analysis can effectively solve the corresponding technical problems.
A wireless communication system based on density analysis is shown according to an embodiment of the present invention comprising:
the similarity detection device is arranged above a ski vehicle sliding channel, is connected with the adaptive interpolation device, and is used for detecting each image area with the similarity exceeding the shape of the standard ski vehicle pattern from the adaptive processing image based on the standard ski vehicle pattern and determining the corresponding ski vehicle density based on the position of each image area in the adaptive processing image;
the regulation and control starting device is connected with the similarity detection device and is used for wirelessly sending a distance regulation and control instruction to a remote sled management center when the density of the received sled is greater than or equal to a preset density level;
the panoramic shooting equipment is arranged above the ski vehicle sliding channel and used for carrying out image shooting operation on the ski vehicle sliding channel so as to obtain and output a corresponding field panoramic image;
the signal analysis equipment is arranged near the panoramic shooting equipment, is connected with the panoramic shooting equipment, and is used for receiving the field panoramic image, acquiring the gray value of each pixel point in the field panoramic image, and executing the following actions aiming at each pixel point: judging each gradient from the gray value to each pixel point around, judging the gradient as an edge pixel point when each gradient is greater than or equal to a preset gradient threshold, and judging the pixel point as a non-edge pixel point when each gradient is less than the preset gradient threshold;
the signal analysis equipment is also used for connecting all edge pixel points in the field panoramic image to obtain one or more closed curves, and respectively dividing one or more image areas from the field panoramic image based on the one or more closed curves;
the repeatability extracting device is connected with the signal analyzing device and used for executing the following actions for each image area: determining the repetition degree of each pixel point based on each pixel value of each pixel point;
an adaptive interpolation device, respectively connected to the signal analysis device and the repetition degree extraction device, for performing an adaptive interpolation action only for each of the divided image areas in the live panoramic image, and not for areas other than the one or more divided image areas in the live panoramic image;
wherein, in the adaptive interpolation apparatus, performing the adaptive interpolation action on each image region includes: when the repetition degree of the image area is greater than or equal to a preset repetition degree, performing Krigin interpolation processing on the image area, and when the repetition degree of the image area is less than the preset repetition degree, not performing the Krigin interpolation processing on the image area;
the self-adaptive interpolation equipment outputs the on-site panoramic image after each image area performs the self-adaptive interpolation action as a self-adaptive processing image;
the control starting equipment comprises a GPRS communication interface and a control starting device, wherein the GPRS communication interface is used for establishing a wireless communication link with a remote sled management center;
and the regulation and control starting equipment is also used for wirelessly sending a distance reliable instruction to a remote sled management center when the received density of the sled is less than the preset density level.
Next, the specific configuration of the wireless communication system based on density analysis according to the present invention will be further described.
In the wireless communication system based on density analysis:
the signal analysis equipment comprises a pixel point detection sub-equipment and a curve processing sub-equipment, and the pixel point detection sub-equipment is connected with the curve processing sub-equipment.
In the wireless communication system based on density analysis:
the pixel point detection sub-device is used for acquiring the gray value of each pixel point in the on-site panoramic image, and executing the following actions aiming at each pixel point: and judging each gradient from the gray value to each pixel point around, judging the gradient as an edge pixel point when each gradient is greater than or equal to a preset gradient threshold, and judging the pixel point as a non-edge pixel point when each gradient is less than the preset gradient threshold.
The wireless communication system based on density analysis may further include:
and the homomorphic filtering equipment is connected with the self-adaptive interpolation equipment and is used for receiving the self-adaptive processing image and executing homomorphic filtering processing on the self-adaptive processing image to obtain a corresponding homomorphic filtering image, wherein the higher the noise amplitude of the self-adaptive processing image is, the higher the intensity of the executed homomorphic filtering processing is.
The wireless communication system based on density analysis may further include:
and the equalization processing equipment is connected with the homomorphic filtering equipment and is used for receiving the homomorphic filtering image and executing histogram equalization processing on the homomorphic filtering image so as to obtain a corresponding histogram equalization image.
The wireless communication system based on density analysis may further include:
the first threshold extraction device is connected with the equalization processing device and used for receiving the histogram equalization image and determining an integral segmentation threshold corresponding to the histogram equalization image based on the distribution condition of the pixel values of all the pixel points in the histogram equalization image;
and the first parameter analysis equipment is used for receiving the histogram equalization image and carrying out contrast analysis on the histogram equalization image so as to obtain and output corresponding contrast.
The wireless communication system based on density analysis may further include:
the first segmentation processing device is connected with the first parameter analysis device and used for receiving the contrast and carrying out image segmentation processing on the histogram equalization image based on the contrast to obtain a plurality of sub-images, wherein the higher the contrast is, the more the number of the obtained sub-images is;
and the second threshold extraction device is connected with the first segmentation processing device and used for receiving the plurality of sub-images, determining the region segmentation thresholds corresponding to the sub-images based on the distribution condition of the pixel values of all the pixel points in each sub-image, and outputting all the region segmentation thresholds corresponding to all the sub-images.
The wireless communication system based on density analysis may further include:
the first numerical value adjusting device is respectively connected with the second threshold value extracting device and the first threshold value extracting device, and is used for receiving the overall segmentation threshold value and each region segmentation threshold value, and performing numerical value adjustment on each region segmentation threshold value based on the overall segmentation threshold value to obtain an adjusted region segmentation threshold value to be used as a region adjustment threshold value to be output; in the first numerical adjustment device, numerically adjusting each region segmentation threshold based on the overall segmentation threshold includes: performing numerical adjustment on the region segmentation threshold value based on the difference value from the whole segmentation threshold value to each region segmentation threshold value; in the first numerical adjustment device, numerically adjusting the region division threshold based on the magnitude of the difference from the overall division threshold to each region division threshold includes: the adjusted region segmentation threshold is the sum of the region segmentation threshold and one fourth of the difference;
and the second segmentation processing device is respectively connected with the similarity detection device and the first numerical value adjusting device and is used for performing segmentation processing on each sub-image by adopting a corresponding region adjustment threshold value to obtain a corresponding target sub-image, combining all the target sub-images to obtain a combined image, and replacing the self-adaptive processing image with the combined image and sending the combined image to the similarity detection device.
In addition, General Packet Radio Service (generic Packet Radio Service) is a mobile data Service available to GSM mobile phone users. GPRS is said to be a continuation of GSM. GPRS is different from the conventional method of continuous channel transmission in that it is transmitted in Packet (Packet) mode, so the cost of the user is calculated in units of the data to be transmitted, rather than using the entire channel, and is theoretically cheaper. The transmission rate of GPRS can be increased to 56 or even 114 Kbps.
GPRS is often described as "2.5G", meaning that the technology is located between second generation (2G) and third generation (3G) mobile communication technologies. He provides moderate data transfer by utilizing unused TDMA channels in the GSM network. GPRS breaks through the thinking that GSM networks can only provide circuit switching, and packet switching is implemented only by adding corresponding functional entities and partially modifying the existing base station system, which is relatively inexpensive in investment, but the obtained user data rate is considerable. Furthermore, connection and transmission are facilitated since the intermediate switches required by current wireless applications are no longer required. Therefore, the user can not only online and participate in interactive transmission of video conferences, but also the user on the same video network (VRN) can continuously connect with the network without dialing the network.
GPRS packet-switched communication in the packet-switched communication mode, data is divided into packets of a certain length, each packet being preceded by a packet header (where the address tag indicates where the packet is destined). The channel is not required to be allocated in advance before the data is transmitted, and the connection is established. Instead, upon the arrival of each packet, an available channel resource is temporarily sought to transmit the datagram based on information in the data header (e.g., destination address). In this transmission method, there is no fixed occupation relationship between the sending and receiving sides of data and the channel, and the channel resources can be regarded as being shared by all users. Since data services exhibit a bursty service characteristic in most cases and the demand for channel bandwidth varies greatly, packet-based data transmission can make better use of channel resources. For example, a user browsing the WWW is most of the time in the browsing state, while the time actually used for data transfer is only a small percentage. In this case, if the channel is fixedly occupied, a large amount of resources will be wasted.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A wireless communication method based on density analysis, the method comprising using a wireless communication system based on density analysis to wirelessly transmit a distance regulation command to a remote ski management center when a received ski density is greater than or equal to a preset density level, the wireless communication system based on density analysis comprising:
the similarity detection device is arranged above a ski vehicle sliding channel, is connected with the adaptive interpolation device, and is used for detecting each image area with the similarity exceeding the shape of the standard ski vehicle pattern from the adaptive processing image based on the standard ski vehicle pattern and determining the corresponding ski vehicle density based on the position of each image area in the adaptive processing image;
the regulation and control starting device is connected with the similarity detection device and is used for wirelessly sending a distance regulation and control instruction to a remote sled management center when the density of the received sled is greater than or equal to a preset density level;
the panoramic shooting equipment is arranged above the ski vehicle sliding channel and used for carrying out image shooting operation on the ski vehicle sliding channel so as to obtain and output a corresponding field panoramic image;
the signal analysis equipment is arranged near the panoramic shooting equipment, is connected with the panoramic shooting equipment, and is used for receiving the field panoramic image, acquiring the gray value of each pixel point in the field panoramic image, and executing the following actions aiming at each pixel point: judging each gradient from the gray value to each pixel point around, judging the gradient as an edge pixel point when each gradient is greater than or equal to a preset gradient threshold, and judging the pixel point as a non-edge pixel point when each gradient is less than the preset gradient threshold;
the signal analysis equipment is also used for connecting all edge pixel points in the field panoramic image to obtain one or more closed curves, and respectively dividing one or more image areas from the field panoramic image based on the one or more closed curves;
the repeatability extracting device is connected with the signal analyzing device and used for executing the following actions for each image area: determining the repetition degree of each pixel point based on each pixel value of each pixel point;
an adaptive interpolation device, respectively connected to the signal analysis device and the repetition degree extraction device, for performing an adaptive interpolation action only for each of the divided image areas in the live panoramic image, and not for areas other than the one or more divided image areas in the live panoramic image;
wherein, in the adaptive interpolation apparatus, performing the adaptive interpolation action on each image region includes: when the repetition degree of the image area is greater than or equal to a preset repetition degree, performing Krigin interpolation processing on the image area, and when the repetition degree of the image area is less than the preset repetition degree, not performing the Krigin interpolation processing on the image area;
the self-adaptive interpolation equipment outputs the on-site panoramic image after each image area performs the self-adaptive interpolation action as a self-adaptive processing image;
the control starting equipment comprises a GPRS communication interface and a control starting device, wherein the GPRS communication interface is used for establishing a wireless communication link with a remote sled management center;
the control starting equipment is further used for wirelessly sending a distance reliable instruction to a remote sled management center when the received density of the sled is smaller than the preset density level;
the first segmentation processing device is connected with the first parameter analysis device and used for receiving the contrast and carrying out image segmentation processing on the histogram equalization image based on the contrast so as to obtain a plurality of sub-images, wherein the higher the contrast is, the more the number of the obtained sub-images is;
the second threshold extraction device is connected with the first segmentation processing device and used for receiving the plurality of sub-images, determining the region segmentation thresholds corresponding to the sub-images based on the distribution condition of the pixel values of all the pixel points in each sub-image, and outputting the region segmentation thresholds corresponding to all the sub-images;
the first numerical value adjusting device is respectively connected with the second threshold value extracting device and the first threshold value extracting device, and is used for receiving the overall division threshold value and each region division threshold value, carrying out numerical value adjustment on each region division threshold value based on the overall division threshold value, and obtaining the adjusted region division threshold value to be used as a region adjustment threshold value to be output; in the first numerical adjustment device, numerically adjusting each region segmentation threshold based on the overall segmentation threshold includes: performing numerical adjustment on the region segmentation threshold value based on the difference value from the whole segmentation threshold value to each region segmentation threshold value; in the first numerical adjustment device, numerically adjusting the region division threshold based on the magnitude of the difference from the overall division threshold to each region division threshold includes: the adjusted region segmentation threshold is the sum of the region segmentation threshold and one fourth of the difference;
and the second segmentation processing device is respectively connected with the similarity detection device and the first numerical value adjusting device and is used for performing segmentation processing on each sub-image by adopting a corresponding region adjustment threshold value to obtain a corresponding target sub-image, combining all the target sub-images to obtain a combined image, and replacing the self-adaptive processing image with the combined image and sending the combined image to the similarity detection device.
2. The method of claim 1, wherein:
the signal analysis equipment comprises a pixel point detection sub-equipment and a curve processing sub-equipment, and the pixel point detection sub-equipment is connected with the curve processing sub-equipment.
3. The method of claim 2, wherein:
the pixel point detection sub-device is used for acquiring the gray value of each pixel point in the on-site panoramic image, and executing the following actions aiming at each pixel point: and judging each gradient from the gray value to each pixel point around, judging the gradient as an edge pixel point when each gradient is greater than or equal to a preset gradient threshold, and judging the pixel point as a non-edge pixel point when each gradient is less than the preset gradient threshold.
4. The method of claim 3, wherein the system further comprises:
and the homomorphic filtering equipment is connected with the self-adaptive interpolation equipment and is used for receiving the self-adaptive processing image and executing homomorphic filtering processing on the self-adaptive processing image to obtain a corresponding homomorphic filtering image, wherein the higher the noise amplitude of the self-adaptive processing image is, the higher the intensity of the executed homomorphic filtering processing is.
5. The method of claim 4, wherein the system further comprises:
and the equalization processing equipment is connected with the homomorphic filtering equipment and is used for receiving the homomorphic filtering image and executing histogram equalization processing on the homomorphic filtering image so as to obtain a corresponding histogram equalization image.
6. The method of claim 5, wherein the system further comprises:
the first threshold extraction device is connected with the equalization processing device and used for receiving the histogram equalization image and determining an integral segmentation threshold corresponding to the histogram equalization image based on the distribution condition of the pixel values of all the pixel points in the histogram equalization image;
and the first parameter analysis equipment is used for receiving the histogram equalization image and carrying out contrast analysis on the histogram equalization image so as to obtain and output corresponding contrast.
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