CN202793696U - GPRS intelligent detection terminal based on infrared gas sensor - Google Patents
GPRS intelligent detection terminal based on infrared gas sensor Download PDFInfo
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- CN202793696U CN202793696U CN 201220515821 CN201220515821U CN202793696U CN 202793696 U CN202793696 U CN 202793696U CN 201220515821 CN201220515821 CN 201220515821 CN 201220515821 U CN201220515821 U CN 201220515821U CN 202793696 U CN202793696 U CN 202793696U
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Abstract
The utility model relates to a GPRS intelligent detection terminal based on an infrared gas sensor. The GPRS intelligent detection terminal based on the infrared gas sensor includes a battery, a microcontroller chip, a GPRS module, an LED indicating lamp, a water level sensor and an infrared methane sensor. The battery is connected with the GPRS module, the microcontroller chip and the infrared gas sensor respectively. The GPRS module is connected with the microcontroller chip. The microcontroller chip is also connected with the infrared gas sensor. A catalytic combustion sensor in the prior art is replaced with the infrared gas sensor in the utility model. The GPRS intelligent detection terminal based on the infrared gas sensor can be suitable for detecting nearly all gases through the above improvement, so that the practical applicability of the GPRS intelligent detection terminal based on the infrared gas sensor is improved. Besides, by adopting the infrared gas sensor, the GPRS intelligent detection terminal based on the infrared gas sensor has distinct advantages of high precision, good selectivity, high reliability, no toxicity, no dependence on oxygen, comparatively low susceptibility to environment interference factors, large dynamic range, short response period, long service lifetime and the like.
Description
Technical field
The utility model relates to a kind of gas monitor and control field, particularly a kind of GPRS intelligent detecting terminal based on infrared gas sensor.
Background technology
It mainly is to utilize catalytic combustion type sensor at present that gas is visited the leakage product.The sensor construction of the type is simple, and production cost is low.Can detect most of inflammable gas, but for aphlogistic gas sensor without any reaction.In air, can report to the police to the content of inflammable gas below concentration of lower explosive limit (%LEL).Output signal approaches linear, and is especially better in the 60 percent following linearity of LEL.Sensor output is not affected by water vapor substantially, and is insensitive to ambient temperature and humidity.
The catalytic combustion type sensor working temperature is high, inner detecting element surface temperature is generally at 200 to 300 degree, internal temperature can reach 700 to 800 degree, so catalytic combustion type sensor can not make intrinsic safe explosion-proof type structure, can only make isolation explosion-proof type structure.Sensor is subject to the impact of halogen compounds etc. and reduces serviceable life.Detecting time error with catalytic combustion type sensor under anaerobic environment can be larger.The fuel value of different inflammable gass is different, sensor measurement be the resistance variations that causes of burning rather than the variation of concentration, even therefore different inflammable gass reading also may be different under identical concentration.Oxygen concentration is a problem that must be noted that when using catalytic combustion method gas sensor to measure combustable gas concentration.Catalytic combustion type sensor requires just can carry out Measurement accuracy at least under the oxygen concentration of 8-10%.
Summary of the invention
The purpose of this utility model is to provide a kind of GPRS intelligent detecting terminal based on infrared gas sensor.
The purpose of this utility model is achieved through the following technical solutions: it comprises battery, microcontroller chip, GPRS module, LED light, level sensor, infrared methane sensor, described battery connects respectively GPRS module, microcontroller chip, infrared gas sensor, the GPRS module connects microcontroller chip, and microcontroller chip also is connected with infrared gas sensor.
Compared to prior art, the utility model has the advantage of: by utilizing catalytic combustion type sensor to replace with infrared gas sensor, improve like this to go for detecting being close to various gases, improve the practicality of product.In addition, adopt also that infrared gas sensor has the precision height, selectivity is good, reliability is high, do not poison, do not rely on oxygen, be subjected to the remarkable advantages such as the environmental interference factor is less, dynamic range is large, the response time is fast, the life-span is long.
Description of drawings
Fig. 1 is annexation figure of the present utility model.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model content is elaborated:
As shown in Figure 1: it comprises battery, microcontroller chip, GPRS module, LED light, level sensor, infrared methane sensor, described battery connects respectively GPRS module, microcontroller chip, infrared gas sensor, the GPRS module connects microcontroller chip, and microcontroller chip also is connected with infrared gas sensor.Microcontroller chip is sensed water level sensor and infrared methane sensor constantly, the data communication device that detects is crossed GPRS be sent to control center.The data communication device that detects is crossed GPRS be sent to control center.Control center just can store the information that receives, analyze and process in time.When gas leakage occured, the geographic position image that control center's display screen can the automatic spring sensing point was concurrently spoken, the light alarm signal.Managerial personnel can inquire about alarm condition by modes such as online, mobile phones whenever and wherever possible.Battery generally provides 3.6V voltage.
Described microcontroller chip and GPRS module are connected with respectively the LED lamp.The LED lamp mainly is the duty of indication system, such as when the GPRS module is worked, and lightening LED lamp.
Microcontroller chip LED lamp when work is lighted, and microcontroller chip LED when dormancy extinguishes, as the system works pilot lamp.
Described GPRS module adopts the MC52I of Siemens, is provided with a MOS switching tube between GPRS module and the battery.The GPRS module adopts the MC52I of Siemens.The highest 2A of working current 300mA(), the electric current under the power-down mode is that 100uA(is maximum).In order further to save electric energy, added a MOS switching tube in GPRS module front, when not working, module cuts off the electricity supply, electric current just can drop to the 1uA(MOS tube leakage current like this), the GPRS module is connected with SIM card.
MOS switching tube model is CEG8205, and characteristics are that very low conducting resistance is arranged, and very low grid voltage is special-purpose in the circuit of lithium battery.
Microcontroller chip is C8051F911, and typical power consumption is 160uA/MHZ, can reach 10uA in the park mode lowest power consumption, and operating voltage is 0.9V-3.6V.Inside is integrated with 16K Flash, 768 byte RAM, 10bit AD converter, UART communication serial port.The microcontroller chip chip of equipment is C8051F911, is a super low power consuming single chip processor that aims at the powered battery design, and typical power consumption is 160uA/MHZ, can reach 10uA in the park mode lowest power consumption, and operating voltage is 0.9V-3.6V.Inside is integrated with 16K Flash, 768 byte RAM, 10bit AD converter, UART communication serial port etc.Aboundresources in the microcontroller chip does not need any chip of outside expansion can satisfy the needs of system, the more important thing is this microcontroller chip inner also integrated a real-time clock, can under park mode, move, the longest timing reaches 36 hours.This function is very useful to system, and the system that both can guarantee is operated in park mode at ordinary times, to reduce power consumption, and also can be in the full speed operation of official hour waken system.For reducing the power consumption of microcontroller chip, chip operating voltage adopts 3V, and TC55RP30 provides by power supply chip.
The usb communication port is used for communicating by letter with host computer, is used for debug system.Microcontroller chip only has a UART serial ports, is used in and the communicating by letter of GPRS module.So the IIC serial ports with the microcontroller chip chip converts the USB serial ports to.Change-over circuit does not design on mainboard, but is designed to separately a communication module, only stays a port on mainboard.When needing debug system, connect again communication module to port.The benefit of doing like this is to simplify motherboard circuit, reduces power consumption, reduces cost.
Host computer can pass through this USB port, changes the running parameter of system, such as number of times and the time of sampling interval time, alarming value, every day uploading data.
What infrared gas sensor adopted is the SuperSensor infrared methane sensor of Beijing Control Technology Co., Ltd..What infrared gas sensor adopted is the SuperSensor infrared methane sensor of Beijing Control Technology Co., Ltd., this sensor advantage is easy for installation, and accuracy of detection is high, long service life, general work voltage is 6V, is changed behind the cell voltage by MCU and powers for infrared gas sensor.
Microcontroller chip is the linkage function switch also.
Microcontroller chip also is connected with cover switch.
Described microcontroller chip also is connected with the SMBUS(control bus).
The usb communication port is used for communicating by letter with host computer, is used for debug system.Microcontroller chip only has a UART serial ports, is used in and the communicating by letter of GPRS module.So the IIC serial ports with the microcontroller chip chip converts the USB serial ports to.Change-over circuit does not design on mainboard, but is designed to separately a communication module, only stays a port on mainboard.When needing debug system, connect again communication module to port.The benefit of doing like this is to simplify motherboard circuit, reduces power consumption, reduces cost.Host computer can pass through this USB port, changes the running parameter of system, such as number of times and the time of sampling interval time, alarming value, every day uploading data.
For the serviceable life of maximum extension battery, except hardware is selected low energy-consumption electronic device, on software, also need efforts, allow as much as possible system be operated in for a long time park mode.Under park mode, except the power supply of microcontroller chip, the power supply of system's other parts all is closed.Be waken up when gas security sampled in system, improve system clock, finish sampling with the fastest time, preserve sampled data, and then enter park mode.
Under normal circumstances, the every interval of system one hour, to the gas sensor once sampling, when sampled value was zero, system entered dormancy after preserving sampled value again.If without any ANOMALOUS VARIATIONS, system only connects GPRS network every day one time in one day, upload the data of all day are disposable.Every once sampling sensor is just uploaded the way of a secondary data before changing, like this could maximum saving electric energy.
For the real-time that guarantees to report to the police, when system discovery had abnormal conditions, system changed wakeup time at once, such as changing into per ten minutes once sampling data, just connected GPRS network at once in case find to surpass alarming value, uploaded alert data.
What level sensor adopted is magnetic switch, does not consume at ordinary times electric energy.The output of level sensor is connected to the interrupting input port of microcontroller chip, and when reporting to the police without water level at ordinary times, microcontroller chip is not done any processing to level sensor, when water-level alarm is arranged.The sensor-triggered microcontroller chip interrupts, waken system work, and system connects GPRS network at once, uploads alerting signal.So both guarantee the real-time of water-level alarm, reduced again system power dissipation.
The concrete electric energy loss situation of this product:
Below calculate and detect 72 times every day by sensor, data are uploaded 6 calculating every day.
Under normal circumstances by microcontroller chip sample gas sensor 72 times every day, each 30 seconds gas sensor preheating times spent, connect the GPRS network uploading data every day 6 times, the time is 120 seconds.
Microcontroller chip working time every day is:
30 seconds * 72 times+120 seconds * 6=2880 second=0.8 hour
Microcontroller chip when work current drain is 1mA, and the consumption in operation of microcontroller chip every day is:
1mA * 0.8 hour=0.8mAH
The dormancy time of every day is:
24 hours-0.8 hour=23.2 hours
The microcontroller chip dormancy time is 23.2 hours, and the electric current of circuitry consumes is 15uA during dormancy, and dormancy every day consumes and is:
15uA * 23.2 hour=348uAH
The working current of gas sensor is 150mA, and the consumption of every day is:
150mA * (30 seconds * 72 times)=90mAH
The working current of GPRS module is 200mA, and the consumption of every day is:
200mA * (120 seconds * 6)=40mAH
The wastage in bulk or weight of every day is:
0.8mAH+0.35mAH+90mAH+40mAH=131.15mAH
Battery capacity is 52AH, and the flying power of battery is:
52AH ÷ 131.15mAH=396 days
In normal alarm free situation, with the lithium battery of 3.6V/52AH, can supply system works 396 days.
Claims (8)
1. GPRS intelligent detecting terminal based on infrared gas sensor, it is characterized in that: it comprises battery, microcontroller chip, GPRS module, LED light, level sensor, infrared methane sensor, described battery connects respectively GPRS module, microcontroller chip, infrared gas sensor, the GPRS module connects microcontroller chip, and microcontroller chip also is connected with infrared gas sensor.
2. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1, it is characterized in that: described microcontroller chip and GPRS module are connected with respectively the LED lamp.
3. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1 is characterized in that: described GPRS module adopts the MC52I of Siemens, is provided with a MOS switching tube between GPRS module and the power supply.
4. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1, it is characterized in that: microcontroller chip is C8051F911, typical case's power consumption is 160uA/MHZ, can reach 10uA in the park mode lowest power consumption, and operating voltage is 0.9V-3.6V; Inside is integrated with 16K Flash, 768 byte RAM, 10bit AD converter, UART communication serial port.
5. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1 is characterized in that: what infrared gas sensor adopted is the SuperSensor infrared methane sensor of Beijing Control Technology Co., Ltd..
6. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1, it is characterized in that: microcontroller chip is the linkage function switch also.
7. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1, it is characterized in that: microcontroller chip also is connected with cover switch.
8. the GPRS intelligent detecting terminal based on infrared gas sensor according to claim 1, it is characterized in that: described microcontroller chip also is connected with SMBUS.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335793A (en) * | 2013-07-05 | 2013-10-02 | 博益(天津)气动技术研究所有限公司 | System and method for finding leakage point based on differential method |
| CN105486833A (en) * | 2016-01-07 | 2016-04-13 | 潘洪源 | Methane detecting device for internet-of-things valve well |
| CN108847004A (en) * | 2018-06-29 | 2018-11-20 | 合肥静美图文科技有限公司 | A kind of non-contact gas monitoring device based on wireless communication |
| CN108961694A (en) * | 2018-08-29 | 2018-12-07 | 安徽辰控智能科技有限公司 | The non-contact gas monitoring device of stand alone type based on NB-IOT |
| CN111970654A (en) * | 2020-07-08 | 2020-11-20 | 成都慧简联信息科技有限公司 | Sensor node dynamic energy-saving sampling method based on data characteristics |
-
2012
- 2012-10-10 CN CN 201220515821 patent/CN202793696U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335793A (en) * | 2013-07-05 | 2013-10-02 | 博益(天津)气动技术研究所有限公司 | System and method for finding leakage point based on differential method |
| CN103335793B (en) * | 2013-07-05 | 2015-08-19 | 天津博益气动股份有限公司 | The system and method for leakage point is searched based on the differential method |
| CN105486833A (en) * | 2016-01-07 | 2016-04-13 | 潘洪源 | Methane detecting device for internet-of-things valve well |
| CN108847004A (en) * | 2018-06-29 | 2018-11-20 | 合肥静美图文科技有限公司 | A kind of non-contact gas monitoring device based on wireless communication |
| CN108961694A (en) * | 2018-08-29 | 2018-12-07 | 安徽辰控智能科技有限公司 | The non-contact gas monitoring device of stand alone type based on NB-IOT |
| CN111970654A (en) * | 2020-07-08 | 2020-11-20 | 成都慧简联信息科技有限公司 | Sensor node dynamic energy-saving sampling method based on data characteristics |
| CN111970654B (en) * | 2020-07-08 | 2023-03-24 | 成都慧简联信息科技有限公司 | Sensor node dynamic energy-saving sampling method based on data characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171023 Address after: 100000 C, building 501-2, office building, Heng Ao center, building 26, Kam Fang street, Xicheng District, Beijing Patentee after: ENN (CHINA) GAS INVESTMENT Co.,Ltd. Address before: Wenling Road, Licheng District of Quanzhou City, 362000 overseas building, Fujian Province Patentee before: Quanzhou Gas Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180926 Address after: 100176 1103A 1, Ronghua South Road, Beijing economic and Technological Development Zone, Daxing District, Beijing, China, 1 Patentee after: ENN FANNENG NETWORK TECHNOLOGY CO.,LTD. Address before: 100000 C block 501-2, office building, 26 Olympic building, Jin Sha Fang street, Xicheng District, Beijing. Patentee before: ENN (CHINA) GAS INVESTMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191219 Address after: 065001 Langfang City, Hebei Province Development Zone Langfang Huaxiang 118 No. 0392 Building 1 Patentee after: LANGFANG ENN PANERGY NETWORK TECHNOLOGY SERVICE CO.,LTD. Address before: 100176 1103A 1, Ronghua South Road, Beijing economic and Technological Development Zone, Daxing District, Beijing, China, 1 Patentee before: ENN FANNENG NETWORK TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |