CN201575828U - Emergency sensing information acquisition terminal based on COFDM - Google Patents
Emergency sensing information acquisition terminal based on COFDM Download PDFInfo
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- CN201575828U CN201575828U CN 200920281064 CN200920281064U CN201575828U CN 201575828 U CN201575828 U CN 201575828U CN 200920281064 CN200920281064 CN 200920281064 CN 200920281064 U CN200920281064 U CN 200920281064U CN 201575828 U CN201575828 U CN 201575828U
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Abstract
The utility model provides an emergency sensing information acquisition terminal based on COFDM, which comprises a core processor performing operating and processing function. The terminal is characterized in: the core processor is connected with a multipath sensor module used for detecting external environmental parameters, an image acquisition module used for acquiring external environmental images and an audio frequency sensor module used for acquiring external environmental audio frequency data; the core processor is also connected with a COFDM transmission module used for performing wireless remote transmission to the acquired data; the multipath sensor module comprises a plurality of sensors, signal amplification circuits and A/D conversion circuits; the image acquisition module comprises an image sensor and an analog image processing circuit; the COFDM transmission module comprises an enciphering coding module, a COFDM modulating module and a power amplifier module. The acquisition terminal of the utility model can realize measurement of different parameters while adopting the signal transmission technology of COFDM, and can increase the bandwidth, speed and stability of data transmission.
Description
Technical field
The utility model relates to a kind of information acquisition terminal, relates in particular to a kind of emergent heat transfer agent acquisition terminal based on COFDM that the multiple sensors input is arranged and can realize wireless transmission.
Background technology
In recent years, various accidents emerge in an endless stream: major natural disasters such as earthquake, landslide, fire, typhoon; Major accidents such as perils of the sea airplane crash, blast, major power outage; The vital emergent event that Public Health Emergencies such as SARS, bird flu etc. are difficult to expect causes heavy losses not only for native subject's lives and properties and economic development, and have also jeopardize national security and social stability.Accident is with uncertainty and should acute attaching most importance to want feature, the incident time, the place can't be predicted in advance, therefore effective communication network can't be set up usually in emergent scene when burst and emergency event take place, on-the-spot various emergency informations can't be uploaded to command centre, for commanding and decision-making and emergency management and rescue have brought great inconvenience, and present 2G/3G communication network can't satisfy the demand of bandwidth, and major part should may lose efficacy under emergent occasion the mobile base station, therefore need a kind of novel device to realize high bandwidth, extra long distance, two-forty, high-quality, the transmission of the emergency information of splendid diffraction force is for emergency command and rescue provide support.
Existing emergent heat transfer agent acquisition terminal is under case of emergency, can not realize collection, monitoring, processing, transmission preferably to emergent on-the-spot various sensor informations (video, voice, humiture, toxic gas, oxygen, CO, gps data etc.), this in time is uploaded to remote command center just for emergent on-the-spot real time data and has brought inconvenience, and in time getting in touch with each on-the-spot unit and field staff in the accident commander of making that the commander can not " on the spot in person " linked up and assigned commander's instruction, in time dispatches and dispose various accidents and activity; Be exactly two-forty and the extra long distance transmission that existing information acquisition terminal can not realize various emergency information data in addition, especially cannot realize high-quality realtime graphic and data transmission at high-speed motion and non-looking under the poker spare.
Summary of the invention
The utility model has overcome the shortcoming of above-mentioned technical matters, and a kind of emergent heat transfer agent acquisition terminal based on COFDM with stable signals collecting, processing and wireless transmission function is provided.
For achieving the above object, the utility model has adopted following technical scheme:
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, the core processor that has comprised computing and processing capacity, its special feature is: described core processor is connected with the multiple sensor module that is used to detect the external environment condition parameter, is used to gather the image capture module of external environment condition image and the audio sensor module of gathering the external environment condition voice data, and described core processor also is connected with the COFDM transport module that its data that collect is carried out the wireless remote transmission; Described multiple sensor module comprises some sensors of gathering different parameters, the A/D change-over circuit that the signal amplification circuit that is connected with sensor is connected with input end with signal amplification circuit output terminal and core processor, described image capture module comprises the analog image treatment circuit that imageing sensor is connected with input end with imageing sensor output terminal and core processor, and described COFDM transport module comprises treats the scrambled module that transmits data, the COFDM modulation module that data behind the scrambled are modulated, data after the modulation are carried out the D/A modular converter of D/A conversion and the power amplifier module that the data after the conversion are carried out power amplification.The multiple sensor module is used to realize the measurement of the various physical parameters of external environment condition, for example humiture, CO content, CO
2Content, oxygen content, gps coordinate value etc. adopt COFDM to treat transmission signals and modulate, and can realize the high-quality of signal and the transmission in high broadband.
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, described core processor also is connected with the image compression module that image that core processor is collected compresses, and it is to realize that data tell the prerequisite of transmission that the data that collected are compressed.
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, described core processor also be connected with to whole terminal provide electric energy for the power transformation module, described for the power transformation module comprise the lithium battery module, to the output voltage of lithium battery carry out the DC/DC conversion module of conversion and can carry out external charging and give lithium battery module and total system provide electric energy fill for the power transformation module.Be provided with on the described emergent heat transfer agent acquisition terminal that to fill for power transformation module and lithium battery module be in order to realize that this terminal is not having external power source to provide under the situation of electric energy, also can carry out the work of certain hour section, make the adaptive faculty that rugged surroundings should anxious heat transfer agent acquisition terminal be arranged.
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, described analog image treatment circuit also is connected with LCD MODULE, and described LCD MODULE comprises shields LCD controller that is connected with the analog image treatment circuit and the LCD Controller that is connected with the output terminal of LCD controller.Be provided with after the LCD MODULE, not only can realize meet an urgent need an on-the-spot video acquisition and an image uploading of gathering to CPU, and it also can show by LCD MODULE, thereby the video image that also need most to obtain for the handheld device holder provides support.
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, described sensor comprises Temperature Humidity Sensor, toxic gas sensor, oxygen sensor, CO sensor, CO
2Sensor, gps coordinate sensor.By the emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, collect to such an extent that the signal numerical value of various kinds of sensors is sent to command centre at a distance, receiving station by command centre carries out demodulation to the signal that receives and shows that the commanding can be according to the realistic command function of field data performance that shows.
Emergent heat transfer agent acquisition terminal based on COFDM of the present utility model, the output terminal of described power amplifier module also is connected with the High frequency filter module.High-frequency filter circuit is set can be the noise remove in the signal.
The beneficial effects of the utility model are: be provided with multiple sensors, can realize the measurement to multiple physical parameter in the testing environment; Be provided with video and audio sensor, can truly reflect the on-the-spot situation that detects; Adopt the signal transmission technology of COFDM, can increase bandwidth, speed and the stability of transmission data.
Description of drawings
Fig. 1 is a theory structure synoptic diagram of the present utility model;
The structural relation synoptic diagram of Fig. 2 each module of the present utility model.
Among the figure: 1 core processor, 2 multiple sensor modules, 3 image capture modules, 4 for power transformation module, 5 audio sensor modules, 6 image compression module, 7COFDM transport module.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As depicted in figs. 1 and 2,1 control of shown core processor and data processing function, six external environment parameters sensors of shown multiple sensor module 2 bags, with shown in parameter sensors signal amplification circuit that is connected and the analog to digital conversion circuit that is connected with the output port of signal amplification circuit, shown in six external environment parameters sensors be respectively Temperature Humidity Sensor, toxic gas sensor, oxygen sensor, CO sensor, CO
2Sensor, gps coordinate sensor, the output terminal of shown analog to digital conversion circuit is connected with core processor; Can realize the detection of all kinds of physical parameters in the environment by various kinds of sensors, the feeble signal of sensor output was passed through analog to digital conversion circuit after advancing the amplifying circuit amplification again, be converted into the numerical signal that core processor can read, make things convenient for core processor various CALCULATION OF PARAMETERS and processing.Shown image capture module 3 comprises ccd image sensor and the analog image treatment circuit that is connected with the output terminal of ccd image sensor, shown analog image treatment circuit is connected with core processor, thereby realize the image acquisition of external environment condition, shown analog image treatment circuit also is connected with LCD controller, this LCD also is connected with the LCD Controller screen, adopts the LCD Controller screen more to make things convenient for the site operation personnel that working equipment is controlled.
Shown 6 accepted standards of the image compression module that is connected with core processor 1 are MPEG/H.264, so that realize the high-quality compression of image and the high rate data transmission of view data; Shown in be connected with core processor 1 for power transformation module 4 comprise fill supply module, with fill the lithium battery module that supply module is connected and be used for DC/DC conversion module that the voltage that the lithium battery module is exported is carried out conversion and voltage stabilizing.The shown supply module that fills adopts 25.2V-3A high efficiency power unit, can be lithium cell charging, also can be the power supply of whole data collection terminal simultaneously, and being full of the electricity time is 4-5 hour, and this charging module can be connected with the power supply of outside and charge; What lithium battery adopted is the 22.2V-10AH lithium battery, is full of at lithium battery under the situation of electric weight to make acquisition terminal of the present utility model work alone more than 3 hours; The DC/DC conversion module provides 12V and two kinds of voltages of 5V for each functional module, and the DC/DC conversion module is realized the output of 12V-2A and 5V-4A, and output efficiency can reach more than 80%, has realized high-effect output.
The shown COFDM transport module that is connected with core processor 1 includes some feature capability modules, be respectively emergency information data AES encrypt, to data encrypted based on the LDPC coding module of FPGA, to the data behind the coding carry out the COFDM modulation module, the digital quantity signal after the modulation carry out the D/A conversion module, the data after the D/A conversion are carried out the power amplifier module of power amplification, the signal after the amplification are carried out the module of High frequency filter, the signal of the most laggard too high frequency filtering is launched through electric wire again, carries out demodulation for receiving station and accepts.The Advanced Encryption Standard of employing AES can realize the safe transmission of data, and the 490M frequency range is adopted in the COFDM modulation, and bandwidth is 2M, and power amplifier is at 1-5W, but the horizon range transmitting range is 10KM, and the High frequency filter module can effectively be removed the noise in the data.
Claims (6)
1. emergent heat transfer agent acquisition terminal based on COFDM, the core processor (1) that has comprised computing and processing capacity, it is characterized in that: the audio sensor module (5) that described core processor is connected with the multiple sensor module (2) that is used to detect the external environment condition parameter, the image capture module (3) that is used to gather the external environment condition image and gathers the external environment condition voice data, described core processor also is connected with the COFDM transport module (7) that its data that collect is carried out the wireless remote transmission; Described multiple sensor module (2) comprises some sensors of gathering different parameters, the A/D change-over circuit that the signal amplification circuit that is connected with sensor is connected with input end with signal amplification circuit output terminal and core processor, described image capture module (3) comprises the analog image treatment circuit that imageing sensor is connected with input end with imageing sensor output terminal and core processor, and described COFDM transport module (7) comprises treats the scrambled module that transmits data, the COFDM modulation module that data behind the scrambled are modulated, data after the modulation are carried out the D/A modular converter of D/A conversion and the power amplifier module that the data after the conversion are carried out power amplification.
2. the emergent heat transfer agent acquisition terminal based on COFDM according to claim 1 is characterized in that: described core processor (1) also is connected with the image compression module (6) that image that core processor is collected compresses.
3. the emergent heat transfer agent acquisition terminal based on COFDM according to claim 1 and 2, it is characterized in that: described core processor (1) also be connected with to whole terminal provide electric energy for power transformation module (4), described for power transformation module (4) comprise the lithium battery module, to the output voltage of lithium battery carry out the DC/DC conversion module of conversion and can carry out external charging and give lithium battery module and total system provide electric energy fill supply module.
4. the emergent heat transfer agent acquisition terminal based on COFDM according to claim 1 and 2, it is characterized in that: described analog image treatment circuit also is connected with LCD MODULE, and described LCD MODULE comprises shields LCD controller that is connected with the analog image treatment circuit and the LCD Controller that is connected with the output terminal of LCD controller.
5. the emergent heat transfer agent acquisition terminal based on COFDM according to claim 1 and 2, it is characterized in that: described sensor comprises Temperature Humidity Sensor, toxic gas sensor, oxygen sensor, CO sensor, CO
2Sensor, gps coordinate sensor.
6. the emergent heat transfer agent acquisition terminal based on COFDM according to claim 1 and 2, it is characterized in that: the output terminal of described power amplifier module also is connected with the High frequency filter module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920281064 CN201575828U (en) | 2009-12-14 | 2009-12-14 | Emergency sensing information acquisition terminal based on COFDM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920281064 CN201575828U (en) | 2009-12-14 | 2009-12-14 | Emergency sensing information acquisition terminal based on COFDM |
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| CN201575828U true CN201575828U (en) | 2010-09-08 |
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| CN 200920281064 Expired - Fee Related CN201575828U (en) | 2009-12-14 | 2009-12-14 | Emergency sensing information acquisition terminal based on COFDM |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607367A (en) * | 2013-11-18 | 2014-02-26 | 郑州三和视讯技术有限公司 | Real-time transmission method of long-distance and high-throughput data |
| CN105376533A (en) * | 2015-11-16 | 2016-03-02 | 石家庄和必达科技有限公司 | Remote inspection system |
| CN107566686A (en) * | 2017-09-30 | 2018-01-09 | 长沙准光里电子科技有限公司 | Intelligent image processing unit |
-
2009
- 2009-12-14 CN CN 200920281064 patent/CN201575828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607367A (en) * | 2013-11-18 | 2014-02-26 | 郑州三和视讯技术有限公司 | Real-time transmission method of long-distance and high-throughput data |
| CN105376533A (en) * | 2015-11-16 | 2016-03-02 | 石家庄和必达科技有限公司 | Remote inspection system |
| CN107566686A (en) * | 2017-09-30 | 2018-01-09 | 长沙准光里电子科技有限公司 | Intelligent image processing unit |
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| Date | Code | Title | Description |
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| 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: 20100908 Termination date: 20101214 |