CN203015014U - Double-transmission-mode video monitoring device based on digital processor and logic controller - Google Patents
Double-transmission-mode video monitoring device based on digital processor and logic controller Download PDFInfo
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- CN203015014U CN203015014U CN 201220600746 CN201220600746U CN203015014U CN 203015014 U CN203015014 U CN 203015014U CN 201220600746 CN201220600746 CN 201220600746 CN 201220600746 U CN201220600746 U CN 201220600746U CN 203015014 U CN203015014 U CN 203015014U
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Abstract
The utility model relates to a double-transmission-mode monitoring device based on a digital processor and a logic controller, comprising a camera, a pre-processing unit, an A/D (Analog-to-Digital) conversion chip, a CPLD (Complex Programmable Logic Device) master control chip, an image storing buffer memory, a D/A (Digital-to-Analog) conversion chip, a first GPRS (General Packet Radio Service) module, a second GPRS module and a monitor display terminal. The camera is connected with the pre-processing unit, the pre-processing unit is connected with the A/D conversion chip and the CPLD master control chip, the CPLD master control chip is respectively connected with the A/D conversion chip, the D/A conversion chip and the image storing buffer memory, the D/A conversion chip is connected with the first GPRS module, the second GPRS module is connected with the monitor display terminal, and the first GPRS module interacts data with the second GPRS module via GPRS network. The double-transmission-mode monitoring device has the advantages of good instantaneity, small volume, low cost, low power consumption and strong adaptability, and can realize functions of video acquisition, transmission and display.
Description
Technical field
The utility model relates to electronic technology field, and a kind of two transmission means video monitoring apparatus based on digital processing unit and logic controller are provided.
Background technology
Along with the development of science and technology and the raising of progress and people's material and cultural life, the degree of safety of people's living environment has had Secretary, thereby all kinds of security devices arise at the historic moment, people need also increasing for real-time video, and be not difficult to find, the vision signal processing seems and becomes more and more important, becoming the core direction of multimedia technology development.The major issue that faces simultaneously is exactly: in order to satisfy the requirement of real world applications, video signal processing system must Real-time Collection, show in real time, and has enough memory spaces.
The quality of front end video acquisition effect directly has influence on the performance index of whole system, and this just requires the good hardware device of sexual energy and efficient algorithm, could satisfy like this real-time of video acquisition and demonstration.It is core processor that the utility model adopts DSP and CPLD, and a video acquisition and video display system are provided.This system real time is good, volume is little, cost is low, low in energy consumption, strong adaptability, can realize the function that video acquisition, transmission of video, video show.
The utility model content
The purpose of this utility model is to provide that a kind of real-time is good, volume is little, cost is low, low in energy consumption, strong adaptability, can realize a kind of two transmission means video monitoring apparatus based on digital processing unit and logic controller of the function that video acquisition, transmission of video, video show.
The utility model is for achieving the above object by the following technical solutions:
a kind of two transmission means video monitoring apparatus based on digital processing unit and logic controller, it is characterized in that: comprise camera, the vision signal that collects is carried out Y/C separates, separated in synchronization, clamping, amplitude is amplified the pretreatment unit of processing, the A/D conversion chip, the CPLD main control chip, the image memory buffers, the D/A conversion chip, the one GPRS module, the 2nd GPRS module, the monitoring display terminal, described camera connects pretreatment unit, pretreatment unit connects A/D conversion chip and CPLD main control chip, described CPLD main control chip connects the A/D conversion chip, the D/A conversion chip, the image memory buffers, described D/A conversion chip connects a GPRS module, described the 2nd GPRS module connects the monitoring display terminal, a described GPRS module and the 2nd GPRS module are carried out data interaction by GPRS network, also comprise CAN bus control unit SJA1000 and CAN bus, described CAN bus control unit SJA1000 connects CPLD main control chip and CAN bus, described CAN bus connects the monitoring display terminal.
The utlity model has following beneficial effect:
It is core processor that the utility model adopts digital processing unit and CPLD, and a video acquisition and video display system are provided.This system real time is good, volume is little, cost is low, low in energy consumption, strong adaptability, can realize the function that video acquisition, transmission of video, video show, and the utility model transmits by limited wireless mode, and reliability is strong.
Description of drawings
Fig. 1 is system construction drawing of the present utility model;
Fig. 2 is the utility model LM1881 chip and ISL59110 chip controls connection layout;
Fig. 3 is display module hardware connection layout of the present utility model.
Embodiment
a kind of two transmission means video monitoring apparatus based on digital processing unit and logic controller, comprise camera, the vision signal that collects is carried out Y/C separates, separated in synchronization, clamping, amplitude is amplified the pretreatment unit of processing, the A/D conversion chip, the CPLD main control chip, the image memory buffers, the D/A conversion chip, the one GPRS module, the 2nd GPRS module, the monitoring display terminal, described camera connects pretreatment unit, pretreatment unit connects A/D conversion chip and CPLD main control chip, described CPLD main control chip connects the A/D conversion chip, the D/A conversion chip, the image memory buffers, described D/A conversion chip connects a GPRS module, described the 2nd GPRS module connects the monitoring display terminal, a described GPRS module and the 2nd GPRS module are carried out data interaction by GPRS network.
The camera that gathers the screen signal adopts BL-3298D model video camera, the vision signal that collects is carried out the pretreatment module of Y/C separation, separated in synchronization, clamping, amplitude amplification processing, pretreated signal is carried out the chip TMS 320 F 2812 of A/D conversion, described BL-3298D model video camera is given the vision signal that collects and is given chip TMS 320 F 2812 after pretreatment module is processed and carry out the A/D conversion, and pretreatment module is also delivered to main control chip XC2C256-7PQG208C with synchronizing signal;
Main control chip XC2C256-7PQG208C is adopted in master control, has formed the image memory buffers by two SRAM, digital of digital video data is carried out the THS8135 chip of D/A conversion, is used for the nFR2401 module of wireless transmission; The signal that will carry out after D/A conversion transmits the nFR2401 module, and described image memory buffers and THS8135 chip all are connected with main control chip XC2C256-7PQG208C, and described VGA interface is connected with the THS8135 chip with main control chip XC2C256-7PQG208C;
Main control chip XC2C256-7PQG208C, reception is from the video data of the XINTF bus output of the TMS320F2812 of pretreatment module and video acquisition mould, main control chip XC2C256-7PQG208C converts the Video Data Storage that receives to the RGB form by sequencing control in the image memory buffers, and give the THS8135 chip and carry out the D/A conversion, deliver to by the GPRS module of wireless transmission at last and demonstrate the image that collects on display.
Described pretreatment unit module comprises LM1881 chip, ISL59110 chip, described LM1881 chip carries out separated in synchronization to signal, isolate composite synchronizing signal, field sync signal, parity field signal, burst/back porch signal, described LM1881 chip BPCout pin is established isolated burst/back porch signal setting the SAG pin of ISL59110, when this pin set to 0, vision signal did not change; When it puts 1, to clamping, the amplitude adjustment that realizes vision signal.
Also comprise CAN bus control unit SJA1000 and CAN bus, the CAN bus, described CAN bus control unit SJA1000 connects CPLD main control chip and CAN bus, and described CAN bus connects the monitoring display terminal.
The image memory buffers comprises SRAM_A and SRAM_B, and its working method is, the first frame data exist in SRAM_A, and the second frame data exist in SRAM_B, and the 3rd frame data are restored in SRAM_A, so circulation, two alternately storages of memories.
Claims (1)
1. two transmission means video monitoring apparatus based on digital processing unit and logic controller, it is characterized in that: comprise camera, the vision signal that collects is carried out Y/C separates, separated in synchronization, clamping, amplitude is amplified the pretreatment unit of processing, the A/D conversion chip, the CPLD main control chip, the image memory buffers, the D/A conversion chip, the one GPRS module, the 2nd GPRS module, the monitoring display terminal, described camera connects pretreatment unit, pretreatment unit connects A/D conversion chip and CPLD main control chip, described CPLD main control chip connects the A/D conversion chip, the D/A conversion chip, the image memory buffers, described D/A conversion chip connects a GPRS module, described the 2nd GPRS module connects the monitoring display terminal, a described GPRS module and the 2nd GPRS module are carried out data interaction by GPRS network, also comprise CAN bus control unit SJA1000 and CAN bus, described CAN bus control unit SJA1000 connects CPLD main control chip and CAN bus, described CAN bus connects the monitoring display terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600746 CN203015014U (en) | 2012-11-15 | 2012-11-15 | Double-transmission-mode video monitoring device based on digital processor and logic controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220600746 CN203015014U (en) | 2012-11-15 | 2012-11-15 | Double-transmission-mode video monitoring device based on digital processor and logic controller |
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| CN203015014U true CN203015014U (en) | 2013-06-19 |
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| CN 201220600746 Expired - Fee Related CN203015014U (en) | 2012-11-15 | 2012-11-15 | Double-transmission-mode video monitoring device based on digital processor and logic controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107464052A (en) * | 2017-07-31 | 2017-12-12 | 中国铁塔股份有限公司 | A kind of site property cost monitoring method and device |
| CN109445371A (en) * | 2018-12-07 | 2019-03-08 | 新疆信息产业有限责任公司 | Calculator room equipment operating status automatic alarm, system and method |
| CN111182216A (en) * | 2020-01-07 | 2020-05-19 | 沧州市农林科学院 | Crop insect pest image shooting and uploading system |
-
2012
- 2012-11-15 CN CN 201220600746 patent/CN203015014U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107464052A (en) * | 2017-07-31 | 2017-12-12 | 中国铁塔股份有限公司 | A kind of site property cost monitoring method and device |
| CN109445371A (en) * | 2018-12-07 | 2019-03-08 | 新疆信息产业有限责任公司 | Calculator room equipment operating status automatic alarm, system and method |
| CN111182216A (en) * | 2020-01-07 | 2020-05-19 | 沧州市农林科学院 | Crop insect pest image shooting and uploading system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131115 |