CN109842864B - Data dynamic regulation system - Google Patents
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- CN109842864B CN109842864B CN201910042236.4A CN201910042236A CN109842864B CN 109842864 B CN109842864 B CN 109842864B CN 201910042236 A CN201910042236 A CN 201910042236A CN 109842864 B CN109842864 B CN 109842864B
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Abstract
The invention relates to a data dynamic regulation system, comprising: the WIFI router is arranged in the bus and used for providing wireless connection for the WIFI terminal in the bus; the system comprises an in-vehicle camera, a bus, a camera module and a display module, wherein the in-vehicle camera is arranged on the roof of the bus and used for acquiring in-vehicle image data of the bus so as to obtain and output a plurality of in-vehicle acquired images which are continuous in time; and the timing equipment is connected with the data capturing equipment and is used for providing timing service for the data capturing of the data capturing equipment. The data dynamic adjusting system has clear logic and reasonable design. On the basis of customized image processing, the number of infants in the bus is accurately identified, and the transmitting power of the in-car WIFI router inversely proportional to the number of infants is determined based on the number of infants, so that radiation to the infants is reduced by adopting a dynamic mechanism, and adaptive control of the transmitting power of the WIFI router is realized.
Description
Technical Field
The invention relates to the field of WIFI routers, in particular to a dynamic data adjusting system.
Background
Communication engineering, also called telecommunication engineering, old called long-distance communication engineering and weak electricity engineering, is an important branch of electronic engineering, which focuses on the principle and application of information transmission and signal processing in the communication process. The communication technology, the communication system, the communication network and other aspects are related, and the communication technology and equipment are involved in research, design, manufacture and operation in the communication field, development and application in national economy departments and national defense industry.
Disclosure of Invention
The invention aims to provide a data dynamic adjusting system, which comprises: the WIFI router is arranged in the bus and used for providing wireless connection for the WIFI terminal in the bus; the system comprises an in-vehicle camera, a bus, a camera module and a display module, wherein the in-vehicle camera is arranged on the roof of the bus and used for acquiring in-vehicle image data of the bus so as to obtain and output a plurality of in-vehicle acquired images which are continuous in time; the timing equipment is connected with the data capturing equipment and used for providing timing service for data capturing of the data capturing equipment; the data capture equipment is connected with the in-vehicle camera and used for acquiring the in-vehicle collected image at the current moment to be output as a current data matrix and acquiring the in-vehicle collected image from the in-vehicle camera after a preset time interval at the current moment to be output as a subsequent data matrix; the difference matrix extraction equipment is connected with the data capture equipment and is used for subtracting the gray value of the same coordinate point position in the subsequent data matrix from the gray value of each coordinate point position in the current data matrix to obtain the difference value of the corresponding coordinate point position, and a difference matrix is formed based on the difference value of each coordinate point position; the matrix correction device is connected with the difference matrix extraction device and used for acquiring the difference matrix, calculating the mean value of the numerical values of all coordinate point positions of the difference matrix and calculating the deviation between the numerical values of all coordinate point positions of the difference matrix and the mean value respectively, modifying the numerical value of the corresponding coordinate position to be 1 when the deviation exceeds the limit, and modifying the numerical value of the corresponding coordinate position to be 0 when the deviation does not exceed the limit so as to obtain the correction matrix corresponding to the difference matrix; the matrix analysis device is connected with the matrix correction device and used for receiving the correction matrix, calculating the number of coordinate points with the value of 1 in the correction matrix and the total number of the coordinate points of the correction matrix, dividing the number of the coordinate points with the value of 1 in the correction matrix by the total number of the coordinate points of the correction matrix to obtain a reference proportion, and sending an offset runaway signal when the reference proportion is greater than or equal to a preset proportion threshold; and the time division duplex communication equipment is connected with the matrix analysis equipment and is used for sending the offset runaway signal and the correction matrix to a remote server when receiving the offset runaway signal.
The present invention has at least the following important points:
(1) on the basis of customized image processing, the number of infants in the bus is accurately identified, and the transmitting power of the in-car WIFI router inversely proportional to the number of the infants is determined on the basis of the number of the infants so as to reduce radiation to the infants by adopting a dynamic mechanism;
(2) determining whether to execute the same processing again on the processed image based on the parameter comparison of the image before and after the erosion-expansion processing;
(3) respectively identifying impulse interference and pulse interference in an image to respectively obtain each impulse interference signal in the image and each pulse interference signal in the image, and comparing the amplitudes of the interference signals to select a filtering mechanism suitable for image content for the image so as to prevent the lack of pertinence in image filtering;
(4) whether the deviation of the in-vehicle camera is controllable when the in-vehicle camera collects the images is determined based on matching and analysis of the in-vehicle collected images at the current moment and content between the in-vehicle collected images obtained by the in-vehicle camera after a preset time interval at the current moment, so that the in-vehicle camera automatically corrects the deviation when the in-vehicle camera collects the images, and a remote operator performs remote correction according to the specific condition of the deviation when the in-vehicle camera is not controllable, thereby improving the stability of the in-vehicle camera.
The data dynamic adjusting system has clear logic and reasonable design. On the basis of customized image processing, the number of infants in the bus is accurately identified, and the transmitting power of the in-car WIFI router inversely proportional to the number of infants is determined based on the number of infants, so that radiation to the infants is reduced by adopting a dynamic mechanism, and adaptive control of the transmitting power of the WIFI router is realized.
Drawings
Fig. 1 is a diagram of an internal scene of a bus to which the data dynamic adjustment system of the present invention is applied.
Detailed Description
The wireless network internet access can be simply understood as wireless internet access, almost all smart phones, tablet computers and notebook computers support WIFI internet access, and the wireless network transmission technology is the most widely used wireless network transmission technology at present. In effect, the wired network signal is converted to a wireless signal, as described at the outset, using a wireless router for reception by the relevant computer, cell phone, tablet, etc. supporting its technology. If the mobile phone has the WIFI function, the mobile phone can surf the internet without a mobile communication network when a WIFI wireless signal exists, and traffic cost is saved.
Wireless networking of wireless networks is commonly used in large cities, and although the wireless communication quality transmitted by the WIFI technology is not good, the data security performance is poorer than that of Bluetooth, the transmission quality needs to be improved, the transmission speed is very high, 54Mbps can be achieved, and the requirements of personal and social informatization are met. The main advantage of WIFI is that it does not need wiring, and it can not be limited by wiring conditions, so it is very suitable for the needs of mobile office users, and because the transmission signal power is lower than 100mw, and lower than the transmission power of mobile phone, it is relatively the safest and healthier to access the internet via WIFI.
In the prior art, the number of infants in a bus is dynamically changed, and the transmission intensity of a WIFI router in the bus is fixedly set, so that generally, in order to ensure the communication speed of each wireless terminal device in the bus, the transmission intensity is set to a high-power gear, so that when the number of infants is too large, the infants generally suffer from a large radiation amount, the adults generally suffer from a small radiation amount, and the infants are more sensitive to radiation than the adults.
In order to overcome the defects, the invention provides a data dynamic adjusting system which can effectively solve the corresponding technical problem.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Fig. 1 is a diagram of an internal scene of a bus to which the data dynamic adjustment system of the present invention is applied.
A system for dynamic adjustment of data, comprising:
the WIFI router is arranged in the bus and used for providing wireless connection for the WIFI terminal in the bus;
the system comprises an in-vehicle camera, a bus, a camera module and a display module, wherein the in-vehicle camera is arranged on the roof of the bus and used for acquiring in-vehicle image data of the bus so as to obtain and output a plurality of in-vehicle acquired images which are continuous in time;
the timing equipment is connected with the data capturing equipment and used for providing timing service for data capturing of the data capturing equipment;
the data capture equipment is connected with the in-vehicle camera and used for acquiring the in-vehicle collected image at the current moment to be output as a current data matrix and acquiring the in-vehicle collected image from the in-vehicle camera after a preset time interval at the current moment to be output as a subsequent data matrix;
the difference matrix extraction equipment is connected with the data capture equipment and is used for subtracting the gray value of the same coordinate point position in the subsequent data matrix from the gray value of each coordinate point position in the current data matrix to obtain the difference value of the corresponding coordinate point position, and a difference matrix is formed based on the difference value of each coordinate point position;
the matrix correction device is connected with the difference matrix extraction device and used for acquiring the difference matrix, calculating the mean value of the numerical values of all coordinate point positions of the difference matrix and calculating the deviation between the numerical values of all coordinate point positions of the difference matrix and the mean value respectively, modifying the numerical value of the corresponding coordinate position to be 1 when the deviation exceeds the limit, and modifying the numerical value of the corresponding coordinate position to be 0 when the deviation does not exceed the limit so as to obtain the correction matrix corresponding to the difference matrix;
the matrix analysis device is connected with the matrix correction device and used for receiving the correction matrix, calculating the number of coordinate points with the value of 1 in the correction matrix and the total number of the coordinate points of the correction matrix, dividing the number of the coordinate points with the value of 1 in the correction matrix by the total number of the coordinate points of the correction matrix to obtain a reference proportion, and sending an offset runaway signal when the reference proportion is greater than or equal to a preset proportion threshold;
the time division duplex communication equipment is connected with the matrix analysis equipment and is used for sending the offset runaway signal and the correction matrix to a remote server when receiving the offset runaway signal;
the image analysis equipment is connected with the in-vehicle camera and used for receiving the in-vehicle collected image at the current moment and respectively identifying pulse interference and pulse interference in the in-vehicle collected image so as to respectively obtain each pulse interference signal in the in-vehicle collected image and each pulse interference signal in the in-vehicle collected image;
the reference value extraction device is connected with the image analysis device and is used for receiving each pulse interference signal in the in-vehicle collected image and each pulse interference signal in the in-vehicle collected image, determining the maximum value of each amplitude value of each pulse interference signal in the in-vehicle collected image to be used as a pulse interference reference value, and determining the maximum value of each amplitude value of each pulse interference signal in the in-vehicle collected image to be used as a pulse interference reference value;
the switching control equipment is connected with the reference value extraction equipment and used for sending out a first trigger signal when the pulse interference reference value is greater than or equal to the pulse interference reference value and sending out a second trigger signal when the pulse interference reference value is smaller than the pulse interference reference value;
the pulse removing equipment is respectively connected with the image analysis equipment and the switching control equipment and is used for starting the following processing of each pixel point in the acquired image in the vehicle when the first trigger signal is received: taking each pixel point in the acquired image in the car as a processing pixel point, determining the area of a filtering window for executing median filtering based on the pulse interference reference value, and performing filtering processing on the pixel value of the processing pixel point by adopting the filtering window; the pulse removing equipment is further used for outputting a corresponding first filtering image based on a filtering processing result of the pixel value of each pixel point in the in-vehicle collected image;
the pulsation removing device is respectively connected with the image analysis device and the switching control device and is used for starting weighted mean filtering processing on the collected images in the vehicle when the first trigger signal is received so as to obtain and output corresponding second filtered images;
the image collecting device is respectively connected with the pulse removing device and the pulse removing device, and outputs the first filtering image or the second filtering image as a collecting image corresponding to the collected image in the vehicle;
the corrosion expansion equipment is connected with the image collecting equipment and used for receiving the collected image and performing corrosion expansion processing on the collected image so as to obtain and output a corresponding corrosion expansion image;
the double-image processing device is connected with the erosion expansion device and used for receiving the erosion expansion image, identifying the number of targets in the erosion expansion image, and performing uniform region segmentation on the erosion expansion image based on the number of the targets to obtain each first image region, wherein the more the number of the targets is, the less the number of pixel points occupied by each obtained first image region is;
the dual-image processing equipment is also used for receiving the collected image, and performing uniform region segmentation on the collected image, wherein the uniform region segmentation has the same size as the erosion expansion image, so as to obtain each second image region;
the uneven grade identification device is connected with the double-image processing device, obtains uneven grades of the brightness components of each first image area, obtains uneven grades of the brightness components of each second image area, determines the overall uneven grade of the erosion expansion image based on the uneven grades of the first image areas, and determines the overall uneven grade of the collected image based on the uneven grades of the second image areas;
integral comparison equipment which is respectively connected with the erosion expansion equipment and the unsmooth grade identification equipment and is used for performing erosion expansion processing on the erosion expansion image again when the absolute value of the difference between the integral unsmooth grade of the erosion expansion image and the integral unsmooth grade of the collected image is less than or equal to a limited quantity so as to obtain an integral comparison image;
the baby identification device is connected with the overall comparison device and used for identifying the number of baby targets in the overall comparison image based on baby imaging characteristics;
and the power adjusting device is respectively connected with the infant identification device and the WIFI router and is used for adjusting the transmitting power of the WIFI router based on the number of the infant targets.
Next, the detailed structure of the data dynamics adjustment system of the present invention will be further described.
In the data dynamic adjustment system:
in the power adjustment device, adjusting the transmit power of the WIFI router based on the number of baby targets comprises: the larger the number of infant targets, the lower the adjusted transmission power of the WIFI router.
The data dynamic adjustment system may further include:
a power supply device connected with the switching control device, the pulse removing device, and the pulsation removing device, respectively.
In the data dynamic adjustment system:
in the matrix analysis device, an offset controllable signal is sent out when the reference proportion is smaller than the preset proportion threshold value.
In the data dynamic adjustment system:
the time division duplex communication equipment is also used for stopping data transmission to a remote server when receiving the offset controllable signal.
In the data dynamic adjustment system:
the overall comparison device is further configured to output the erosion expansion image as an overall comparison image when a difference between an overall unevenness level of the erosion expansion image and an overall unevenness level of the collected image is greater than a limit amount.
In the data dynamic adjustment system:
the power supply device controls the pulse removing device to enter an operation mode and controls the pulse removing device to enter a sleep mode when receiving the first trigger signal.
In the data dynamic adjustment system:
the power supply device controls the pulsation removing device to enter an operation mode and controls the pulsation removing device to enter a sleep mode when receiving the second trigger signal.
In the data dynamic adjustment system:
in the pulse removing apparatus, the larger the pulse interference reference value is, the larger the area of the filter window determined to perform median filtering is.
In addition, time division duplexing is a duplexing method of a communication system for separating reception and transmission channels in a mobile communication system. Mobile communication is currently developing to the third generation, and china filed the third generation draft of mobile communication standards (TD-SCDMA) in 6 months 1997, and its features such as TDD mode and new technology of smart antenna are highly evaluated and become one of three main candidate standards. TDD mode has not been emphasized on the whole in FDD mode in first and second generation mobile communication systems. However, due to the need for new services and the development of new technologies, and many advantages of the TDD mode, the TDD mode will be increasingly emphasized.
The working principle of time division duplex is as follows: TDD is a duplex scheme of a communication system for separating a reception channel and a transmission channel (or uplink and downlink) in a mobile communication system. In the TDD mode mobile communication system, the receiving and transmitting are in different time slots of the same frequency channel, namely carrier, and the receiving and transmitting channels are separated by using the guaranteed time; in the FDD mode, the receiving and transmitting are performed on two separate symmetric frequency channels, and the receiving and transmitting channels are separated by a guaranteed frequency band.
The characteristics and communication benefits of mobile communication systems employing different duplex modes are different. The uplink and downlink channels in the TDD mode mobile communication system use the same frequency, and thus have reciprocity of the uplink and downlink channels, which brings many advantages to the TDD mode mobile communication system.
In TDD mode, the transmission of information in uplink and downlink can be performed on the same carrier frequency, i.e. the transmission of information in uplink and the transmission of information in downlink are realized by time division on the same carrier.
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 (8)
1. A system for dynamically adjusting data, comprising:
the WIFI router is arranged in the bus and used for providing wireless connection for the WIFI terminal in the bus;
the system comprises an in-vehicle camera, a bus, a camera module and a display module, wherein the in-vehicle camera is arranged on the roof of the bus and used for acquiring in-vehicle image data of the bus so as to obtain and output a plurality of in-vehicle acquired images which are continuous in time;
the timing equipment is connected with the data capturing equipment and used for providing timing service for data capturing of the data capturing equipment;
the data capture equipment is connected with the in-vehicle camera and used for acquiring the in-vehicle collected image at the current moment to be output as a current data matrix and acquiring the in-vehicle collected image from the in-vehicle camera after a preset time interval at the current moment to be output as a subsequent data matrix;
the difference matrix extraction equipment is connected with the data capture equipment and is used for subtracting the gray value of the same coordinate point position in the subsequent data matrix from the gray value of each coordinate point position in the current data matrix to obtain the difference value of the corresponding coordinate point position, and a difference matrix is formed based on the difference value of each coordinate point position;
the matrix correction device is connected with the difference matrix extraction device and used for acquiring the difference matrix, calculating the mean value of the numerical values of all coordinate point positions of the difference matrix and calculating the deviation between the numerical values of all coordinate point positions of the difference matrix and the mean value respectively, modifying the numerical value of the corresponding coordinate position to be 1 when the deviation exceeds the limit, and modifying the numerical value of the corresponding coordinate position to be 0 when the deviation does not exceed the limit so as to obtain the correction matrix corresponding to the difference matrix;
the matrix analysis device is connected with the matrix correction device and used for receiving the correction matrix, calculating the number of coordinate points with the value of 1 in the correction matrix and the total number of the coordinate points of the correction matrix, dividing the number of the coordinate points with the value of 1 in the correction matrix by the total number of the coordinate points of the correction matrix to obtain a reference proportion, and sending an offset runaway signal when the reference proportion is greater than or equal to a preset proportion threshold;
the time division duplex communication equipment is connected with the matrix analysis equipment and is used for sending the offset runaway signal and the correction matrix to a remote server when receiving the offset runaway signal;
the image analysis equipment is connected with the in-vehicle camera and used for receiving the in-vehicle collected image at the current moment and respectively identifying pulse interference and pulse interference in the in-vehicle collected image so as to respectively obtain each pulse interference signal in the in-vehicle collected image and each pulse interference signal in the in-vehicle collected image;
the reference value extraction device is connected with the image analysis device and is used for receiving each pulse interference signal in the in-vehicle collected image and each pulse interference signal in the in-vehicle collected image, determining the maximum value of each amplitude value of each pulse interference signal in the in-vehicle collected image to be used as a pulse interference reference value, and determining the maximum value of each amplitude value of each pulse interference signal in the in-vehicle collected image to be used as a pulse interference reference value;
the switching control equipment is connected with the reference value extraction equipment and used for sending out a first trigger signal when the pulse interference reference value is greater than or equal to the pulse interference reference value and sending out a second trigger signal when the pulse interference reference value is smaller than the pulse interference reference value;
the pulse removing equipment is respectively connected with the image analysis equipment and the switching control equipment and is used for starting the following processing of each pixel point in the acquired image in the vehicle when the first trigger signal is received: taking each pixel point in the acquired image in the car as a processing pixel point, determining the area of a filtering window for executing median filtering based on the pulse interference reference value, and performing filtering processing on the pixel value of the processing pixel point by adopting the filtering window; the pulse removing equipment is further used for outputting a corresponding first filtering image based on a filtering processing result of the pixel value of each pixel point in the in-vehicle collected image;
the pulsation removing device is respectively connected with the image analysis device and the switching control device and is used for starting weighted mean filtering processing on the collected images in the vehicle when the first trigger signal is received so as to obtain and output corresponding second filtered images;
the image collecting device is respectively connected with the pulse removing device and the pulse removing device, and outputs the first filtering image or the second filtering image as a collecting image corresponding to the collected image in the vehicle;
the corrosion expansion equipment is connected with the image collecting equipment and used for receiving the collected image and performing corrosion expansion processing on the collected image so as to obtain and output a corresponding corrosion expansion image;
the double-image processing device is connected with the erosion expansion device and used for receiving the erosion expansion image, identifying the number of targets in the erosion expansion image, and performing uniform region segmentation on the erosion expansion image based on the number of the targets to obtain each first image region, wherein the more the number of the targets is, the less the number of pixel points occupied by each obtained first image region is;
the dual-image processing equipment is also used for receiving the collected image, and performing uniform region segmentation on the collected image, wherein the uniform region segmentation has the same size as the erosion expansion image, so as to obtain each second image region;
the uneven grade identification device is connected with the double-image processing device, obtains uneven grades of the brightness components of each first image area, obtains uneven grades of the brightness components of each second image area, determines the overall uneven grade of the erosion expansion image based on the uneven grades of the first image areas, and determines the overall uneven grade of the collected image based on the uneven grades of the second image areas;
integral comparison equipment which is respectively connected with the erosion expansion equipment and the unsmooth grade identification equipment and is used for performing erosion expansion processing on the erosion expansion image again when the absolute value of the difference between the integral unsmooth grade of the erosion expansion image and the integral unsmooth grade of the collected image is less than or equal to a limited quantity so as to obtain an integral comparison image;
the baby identification device is connected with the overall comparison device and used for identifying the number of baby targets in the overall comparison image based on baby imaging characteristics;
and the power adjusting device is respectively connected with the infant identification device and the WIFI router and is used for adjusting the transmitting power of the WIFI router based on the number of the infant targets.
2. The data dynamics adjustment system of claim 1, wherein:
in the power adjustment device, adjusting the transmit power of the WIFI router based on the number of baby targets comprises: the larger the number of infant targets, the lower the adjusted transmission power of the WIFI router.
3. The data dynamics adjustment system of claim 2, wherein the system further comprises:
a power supply device connected with the switching control device, the pulse removing device, and the pulsation removing device, respectively.
4. The data dynamics adjustment system of claim 3, wherein:
in the matrix analysis device, an offset controllable signal is sent out when the reference proportion is smaller than the preset proportion threshold value.
5. The data dynamics adjustment system of claim 4, wherein:
the time division duplex communication equipment is also used for stopping data transmission to a remote server when receiving the offset controllable signal.
6. The data dynamics adjustment system of claim 5, wherein:
the overall comparison device is further configured to output the erosion expansion image as an overall comparison image when a difference between an overall unevenness level of the erosion expansion image and an overall unevenness level of the collected image is greater than a limit amount.
7. The data dynamics adjustment system of claim 6, wherein:
the power supply device controls the pulse removing device to enter an operation mode and controls the pulse removing device to enter a sleep mode when receiving the first trigger signal.
8. The data dynamics adjustment system of claim 7, wherein:
the power supply device controls the pulsation removing device to enter an operation mode and controls the pulsation removing device to enter a sleep mode when receiving the second trigger signal.
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| CN105263185A (en) * | 2015-09-06 | 2016-01-20 | 上海斐讯数据通信技术有限公司 | Method and system for dynamic adjustment of transmitting power of wireless access point, and wireless access point |
| CN105376845A (en) * | 2015-12-01 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Router transmitting power regulation method, router transmitting power regulation system and router |
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| CN103916946B (en) * | 2013-01-04 | 2017-11-21 | 中国移动通信集团公司 | The method of adjustment and device of portable wireless gateway transmission power |
| CN104270806B (en) * | 2014-09-11 | 2017-12-05 | 小米科技有限责任公司 | Transmission power adjustment method and device |
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| CN105263185A (en) * | 2015-09-06 | 2016-01-20 | 上海斐讯数据通信技术有限公司 | Method and system for dynamic adjustment of transmitting power of wireless access point, and wireless access point |
| CN105376845A (en) * | 2015-12-01 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Router transmitting power regulation method, router transmitting power regulation system and router |
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