CN105100721A - System and transmission method of Beidou intelligent information - Google Patents
System and transmission method of Beidou intelligent information Download PDFInfo
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- CN105100721A CN105100721A CN201510470281.1A CN201510470281A CN105100721A CN 105100721 A CN105100721 A CN 105100721A CN 201510470281 A CN201510470281 A CN 201510470281A CN 105100721 A CN105100721 A CN 105100721A
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Abstract
The invention discloses a system of Beidou intelligent information, and the system is composed of a monitoring terminal and a monitoring center. The system is characterized in that the monitoring terminal comprises a camera, an ARM board, a Beidou module and a power supply, and is used for target monitoring, processing and transmission, and the monitoring center comprises a Beidou module, a computer and a power supply, and used for receiving information of the monitoring terminal and obtaining image information by decoding. The system and method can be used to effectively solve the problems of low image definition and packet loss in the information transmission process, and the image formation rate is greatly improved.
Description
Technical field
The present invention relates to field of information transmission, particularly relate to a kind of Big Dipper intelligent information system and transmission method.
Background technology
China is one of country that island is maximum in the world, but because island distribution comparatively disperses, and away from continent, to land on the island investigation one by one, need to spend a large amount of human and material resources, financial resources and time, management cost is expensive, in addition because the exploitation on island is in the resource driving stage, abundant tourist resources does not obtain the exploitation of abundant rational and orderly, resource and environment breakoff phenomenon is comparatively serious, whole development level is not high, and therefore, improving the monitoring capacity on island is the significant problem being badly in need of solving.
The effect realization utilizing Big Dipper intelligent information system passable is to the monitoring on island and protection, but the civilian information transmission system of the existing Big Dipper still exists following technical problem with not enough:
A) because Big Dipper commercial communication can only send once for one minute and once can only send at most 100 bytes, therefore image is needed to carry out compressing and cutting, image compression is crossed conference and is caused serious distortion, compress too small, need the long period to carry out image transmitting, therefore, how determining that rational compression ratio is to ensure definition and the transmission time of image, is technical staff's urgent problem.
B) because Beidou communication success rate only can reach more than 95%, packet loss phenomenon can be produced when transmission, thus cause control and monitor console not fogging clear even cannot imaging, therefore, how setting up mutual communication mechanism to guarantee that image can complete transmission, is also technical staff's urgent problem.
Summary of the invention
The object of the invention is the shortcomings and deficiencies existed for above-mentioned prior art, a kind of Big Dipper intelligent information system and transmission method are provided.
Technical scheme of the present invention is achieved in that
The invention provides a kind of Big Dipper intelligent information system, be made up of, it is characterized in that monitor terminal and Surveillance center's two parts, described monitor terminal comprises camera, ARM plate, Big Dipper module and power supply, for realize target monitoring, process, transmission; Described Surveillance center comprises Big Dipper module, computer and power supply, for receiving monitor terminal information, obtains image information by decoding.
Further, described camera is used for image data information, and described ARM plate is used for data and information processing, and described Big Dipper module is used for the transmission of data.
Further, described computer is used for reception, resolution data and instruction transmission.
Present invention also offers a kind of Big Dipper intelligent information transmission method, it is characterized in that: comprise the following steps:
Step 1, after the energising of described monitor terminal, described camera by the image data transmission that gathers to ARM plate;
Step 2, ARM plate processes image information after receiving data: Image semantic classification, moving target monitoring, image compression, image cutting, coding, then by data information transfer to Big Dipper module;
Step 3, Big Dipper module sends to Surveillance center after receiving data;
Step 4, is transferred to computer after the Big Dipper module reception data of Surveillance center;
Step 5, computer carry out after receiving data decode and image processing and tracking unit, false detection process, then send corresponding instruction to monitor terminal;
Step 6, is transferred to ARM plate after the Big Dipper module reception instruction of monitor terminal;
Step 7, the instruction of Surveillance center resolved by ARM plate, then performs instruction.
Further, in described step 2, ARM plate processes image information after receiving data, comprises the following steps:
Step a, Image semantic classification, is converted into digital signal by the analog signal of camera, then reading images information preserving;
Step b, moving target monitoring, processes the image information of reading, then removes static or target slowly of moving in image by calculating, and will calculate the larger target of rear profile as moving target recognition out;
Step c, image compression, cutting and coding, compress moving target, and then cutting is several messages and carries out subpackage coding;
Steps d, subpackage sends coded data, and the coded data after subpackage is sent to Big Dipper module.
Further, in described step 5, after computer receives data, the information received is decoded, when carrying out after the image information receiving view picture merging and showing.
Further, in described step 5, the process of false detection is: computer judges whether packet loss after receiving image information, if there is packet drop, notice monitor terminal resends packet loss information, and monitor terminal resends packet loss information after receiving the information of Surveillance center.
Compared with prior art, beneficial effect of the present invention is:
The technical scheme that the present invention proposes, effectively solves prior art Problems existing, and has following advantage:
A) whether Surveillance center can the situation on Real-time Obtaining island and periphery have target to pass through;
B) the one-tenth figure substantially increasing image by false detection leads, and brings up to 96% by original 81%;
C) can detect that the movement velocity scope of target is about 0.1m-5m in the distance that distance camera 50 meters is far away;
D) can reach in original image half an hour and upgrade once, movement destination image upgraded once in five minutes.
Accompanying drawing explanation
Fig. 1 is monitor terminal of the present invention and Surveillance center's configuration diagram;
Fig. 2 is monitor terminal workflow diagram of the present invention;
Fig. 3 is Surveillance center of the present invention workflow diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, Figure 2 and Figure 3, the invention provides a kind of Big Dipper intelligent information system, be made up of monitor terminal and Surveillance center's two parts, monitor terminal comprises camera, ARM plate, Big Dipper module and 12V power supply, for realize target monitoring, process, transmission.When after monitor terminal energising, the view data of collection is transferred to Arm plate by video interface by camera, ARM plate processes image after receiving data: Image semantic classification, moving target monitoring, image compression, image cutting, coding, then by data message by Serial Port Transmission to Big Dipper module; After ARM plate receives data to the detailed step of the process of image information be: step a, Image semantic classification, is converted into digital signal by the analog signal of camera, then reading images information preserving; Step b, moving target monitoring, processes the image information of reading, then removes static or target slowly of moving in image by calculating, and will calculate the larger target of rear profile as moving target recognition out; Step c, image compression, cutting and coding, compress moving target, and then cutting is several messages and carries out subpackage coding; Steps d, subpackage sends coded data, and the coded data after subpackage is sent to Big Dipper module.Surveillance center is sent to by antenna after Big Dipper module receives data.Surveillance center comprises Big Dipper module, computer and power supply, for receiving monitor terminal information, obtains image information by decoding.Computer is transferred data to by serial ports after the Big Dipper module of Surveillance center receives data by antenna, computer carry out after receiving data decode and image processing and tracking unit, false detection aspect process, to the process of decoding and image processing and tracking unit be: after computer receives data, the information received is decoded, when carrying out after the image information receiving view picture merging and showing; Be: after computer receives image information, judge whether packet loss, if there is packet drop, send instruction to monitor terminal to the process of false detection, notice monitor terminal resends packet loss information; Be transferred to ARM plate after the Big Dipper module of monitor terminal receives instruction, ARM plate resends packet loss information after resolving the instruction of Surveillance center.
As shown in Figure 2, the workflow of monitor terminal is as follows: after monitor terminal starts, trigger three flow processs, flow process one: IMAQ; Flow process two: data receiver; Flow process three: data send.Flow process one: judge whether to read movement destination image.If movement destination image, view picture background image information is read when there being moving target, static or target slowly of moving in background image is removed by calculating, to the larger target of rear profile be calculated as moving target recognition out, then image compression is carried out, cutting and coding, the Returning process one when not having moving target; If background image, read view picture background image information, then carry out image compression, cutting and coding, trigger flow three.Flow process two: monitor terminal reads Serial Port Information, then resolves, if for sending background image information, trigger flow one sends background image, if be packet loss information, judge the bag number that Surveillance center loses, trigger flow three sends packet loss data, if do not operated for non-packet loss information.Flow process three: when after the triggering receiving thread one when transmission view data, after being sent, the stand-by period is set, if receive the triggering of thread two within the stand-by period, sends packet loss information, otherwise send retransmission of information.
As shown in Figure 3, the workflow of Surveillance center is as follows: after Surveillance center starts, trigger two flow processs, flow process one: data receiver; Flow process two: data send.Flow process one: when Surveillance center reads the laggard row Data Analysis of Serial Port Information, after being judged as last bag, the stand-by period is set, packet loss has been judged whether after arriving the stand-by period, if there is transmission packet loss, trigger flow two sends packet loss information, otherwise send non-packet loss information carry out simultaneously image analysis obtain compress after image, obtain original image by decompress(ion) and show.Flow process two: Surveillance center carries out data transmission by serial ports, main transmission order has the order of a. background image, b. sends packet loss information, c. sends non-packet loss information.The another click control button that passes through also directly trigger flow two can send background image order.
Technical scheme of the present invention, effectively solves the packet loss problem in the low and message transmitting procedure of the image definition existed in prior art, is led by the one-tenth figure of image and greatly improve.
The foregoing is only the preferred embodiment of invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a Big Dipper intelligent information system, is made up of monitor terminal and Surveillance center's two parts, it is characterized in that, described monitor terminal comprises camera, ARM plate, Big Dipper module and power supply, for realize target monitoring, process, transmission; Described Surveillance center comprises Big Dipper module, computer and power supply, for receiving monitor terminal information, obtains image information by decoding.
2. Big Dipper intelligent information system according to claim 1, is characterized in that, described camera is used for image data information, and described ARM plate is used for data and information processing, and described Big Dipper module is used for the transmission of data.
3. Big Dipper intelligent information system according to claim 2, is characterized in that: described computer is used for reception, resolution data and instruction and sends.
4. a Big Dipper intelligent information transmission method, is characterized in that: comprise the following steps:
Step 1, after the energising of described monitor terminal, described camera by the image data transmission that gathers to ARM plate;
Step 2, ARM plate processes image information after receiving data: Image semantic classification, moving target monitoring, image compression, image cutting, coding, then by data information transfer to Big Dipper module;
Step 3, Big Dipper module sends to Surveillance center after receiving data;
Step 4, is transferred to computer after the Big Dipper module reception data of Surveillance center;
Step 5, computer carry out after receiving data decode and image processing and tracking unit, false detection process, then send corresponding instruction to monitor terminal;
Step 6, is transferred to ARM plate after the Big Dipper module reception instruction of monitor terminal;
Step 7, the instruction of Surveillance center resolved by ARM plate, then performs instruction.
5. Big Dipper intelligent information transmission method according to claim 4, it is characterized in that: in described step 2, ARM plate processes image information after receiving data, comprises the following steps:
Step a, Image semantic classification, is converted into digital signal by the analog signal of camera, then reading images information preserving;
Step b, moving target monitoring, processes the image information of reading, then removes static or target slowly of moving in image by calculating, and will calculate the larger target of rear profile as moving target recognition out;
Step c, image compression, cutting and coding, compress moving target, and then cutting is several messages and carries out subpackage coding;
Steps d, subpackage sends coded data, and the coded data after subpackage is sent to Big Dipper module.
6. the Big Dipper intelligent information transmission method according to claim 4 or 5, is characterized in that: in described step 5, decodes after computer receives data to the information received, when carrying out after the image information receiving view picture merging and showing.
7. Big Dipper intelligent information transmission method according to claim 6, it is characterized in that: in described step 5, the process of false detection is: computer judges whether packet loss after receiving image information, if there is packet drop, notice monitor terminal resends packet loss information, and monitor terminal resends packet loss information after receiving the information of Surveillance center.
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| CN201510470281.1A CN105100721A (en) | 2015-08-04 | 2015-08-04 | System and transmission method of Beidou intelligent information |
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| CN105743616A (en) * | 2016-05-06 | 2016-07-06 | 南京大学 | Long message segmentation and reliable communication method based on Beidou short message communication |
| CN105828027A (en) * | 2016-03-02 | 2016-08-03 | 天津凯普卫星导航通信技术有限公司 | Sea island monitoring method based on SIGSO satellite and sea island monitoring system thereof |
| CN109413379A (en) * | 2018-08-27 | 2019-03-01 | 中国人民解放军海军工程大学 | A kind of intelligent aviation anti-terrorism monitoring method and system based on Big Dipper short message |
| CN110557617A (en) * | 2019-09-19 | 2019-12-10 | 天津英田视讯科技有限公司 | image snapshot data transmission method based on Beidou communication |
| CN116389772A (en) * | 2023-06-02 | 2023-07-04 | 广州磐钴智能科技有限公司 | Beidou network-based image transmission method and system |
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| CN109413379A (en) * | 2018-08-27 | 2019-03-01 | 中国人民解放军海军工程大学 | A kind of intelligent aviation anti-terrorism monitoring method and system based on Big Dipper short message |
| CN109413379B (en) * | 2018-08-27 | 2021-09-03 | 中国人民解放军海军工程大学 | Intelligent aviation anti-terrorist monitoring method and system based on Beidou short message |
| CN110557617A (en) * | 2019-09-19 | 2019-12-10 | 天津英田视讯科技有限公司 | image snapshot data transmission method based on Beidou communication |
| CN116389772A (en) * | 2023-06-02 | 2023-07-04 | 广州磐钴智能科技有限公司 | Beidou network-based image transmission method and system |
| CN116389772B (en) * | 2023-06-02 | 2023-08-11 | 广州磐钴智能科技有限公司 | Beidou network-based image transmission method and system |
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