Background technology
Environmental pollution is in the last few years more and more serious, and haze weather also gets more and more, and our living environment quality becomes worse and worse.Haze is the general saying to suspended particulate substance various in air, and especially PM2.5 is the main arch-criminal causing haze weather.So we are necessary to detect the PM2.5 concentration in air, there is more deep understanding to the environmental quality of life, just can accomplish to resist haze, protect our living environment.
Some air quality detecting devices researched and developed in world wide at present are mainly applied and hospital, some environment measurings of the public arenas such as market.Also have some mancarried devices to may be used for the detection of air quality, but the design mainly detect to environmental quality based on smart mobile phone.
Implementation related to the present invention has: the patent [1] that Shanghai Hua Qin telecom technology co., ltd proposed in 2010; describe a kind of mobile phone for Detection of Air Quality; but its Cleaning Principle mainly uses the change of photosensitive material sensing light intake, the amount of dust in the unit of account time.Patent of invention [2], describes a kind of instrument of portable air quality testing, and adopt wireless sensor technology, embedded system detects air quality.Patent of invention [3], describe a kind of by site environment sniffer, wireless transmitter, Single Chip Microcomputer (SCM) system carries out the device of every data monitoring of environmental quality.
[1] mobile phone of air quality can be detected, application number: 201020639191.3 invention designers: Liu Fengqin
[2] portable air mass detecting instrument, application number 201320420564.1 invention designer: Zhu Zeshi
[3] an indoor air quality monitoring device, application number 201320166629.4 inventor: Li Jun, Li Shuangui, the hard torch of good fortune, Li Murong, relies times fine jade, Ma Qiuci
In sum, the shortcoming of prior art is exactly in mobile phone additional sensor module, separate separately, shows slightly burden.Or based on the air quality detector of embedded system, the just simple data being read air quality by transducer, effectively can not being combined with mobile phone, providing corresponding suggestion to carrying out detailed analysis by cell phone network uploading data.
Summary of the invention
The technical problem to be solved in the present invention is to provide the mobile phone detected for PM2.5 dust concentration, based on smart mobile phone, transducer is increased at interior of mobile phone, the detection of air quality can be carried out, and abnormal conditions are reported to the police, also can carry out data upload analysis by network, come up with concrete proposals to the trip of the mankind.
For achieving the above object, technical scheme of the present invention is as follows:
For the mobile phone that PM2.5 dust concentration detects, comprising:
One Temperature and Humidity module, this Temperature and Humidity inside modules converts the information of humiture to analog electrical signal and carries out amplification process, and Temperature Humidity Sensor passes through I2c bus is connected with processor;
One dust sensor module, this dust sensor module is connected with the GPIO mouth of processor and reads data;
One processor module, this processor module is to the collection union process of humiture information and dust information, change into corresponding humiture information and PM2.5 concentration data, save the data on memory, then be sent on mobile phone display screen and show, and related data is sent to the radio-frequency module of mobile phone;
And the display panel module be connected with processor module and a radio-frequency module.
In a preferred embodiment of the invention, also comprise a PM2.5 concentration alarm module, by the loudspeaker of interior of mobile phone and vibrating motor to and report to user to the humiture information of environment and dust pollution information speech, pollution is reported to the police.
In a preferred embodiment of the invention, described PM2.5 concentration alarm module adopts the loudspeaker of embedded in mobile phone.
In a preferred embodiment of the invention, described dust sensor inside modules is provided with heater, and heating makes air-flow rise.
By technique scheme, the invention has the beneficial effects as follows:
Not only there is the general utility functions of smart mobile phone, and there is Temperature and Humidity, the smart mobile phone of dust concentration measuring ability.Its feature comprises built-in transducer and can detect the humiture of the environment of surrounding and dust concentration, and transducer can be selected to open or close by software, effectively decreases power consumption.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
With reference to Fig. 1, for the mobile phone that PM2.5 dust concentration detects, comprising:
Temperature and Humidity module: Temperature and Humidity module is mainly made up of Temperature Humidity Sensor, the inner integrated dew cell of Temperature Humidity Sensor, inside converts the information of humiture to analog electrical signal and carries out amplification process.Temperature Humidity Sensor is connected with processor by I2C bus, and processor can utilize the analog electrical signal of I2C bus to Temperature Humidity Sensor to read.
Dust sensor module: dust sensor module mainly includes dust sensor, transducer adopts particle counting principle.In module, be provided with heater, heating makes air-flow rise, and extraneous air enters the inside of module, and when passing through if any particles such as dust, blocked LED light source, photoelectric detector can't detect light source, and photoelectric detector then electronegative potential exports; As passed through without particle, then photoelectric detector high potential exports, and forms PMW pulse width modulating signal, and signal exports through amplifying.Be connected with the GPIO mouth of processor and data are read.
Processor module: processor module is the core baseband chip of mobile phone, what mainly complete is collection union process to humiture information and dust information, change into corresponding humiture information and PM2.5 concentration data, save the data on memory, then be sent on mobile phone display screen and show, and related data is sent to the radio-frequency module of mobile phone.
Display panel module: LCD MODULE Main Function shows the information such as the humiture information that collects and PM2.5 concentration, and some analysis reports and trip suggestion etc. that display is relevant.
Radio-frequency module: by radio-frequency module interconnection network, relevant humiture information and PM2.5 concentration information are uploaded to network by processor, carry out comprehensive analyzing and processing, analyze after terminating and analysis report is sent to mobile phone, be presented to user by mobile phone display screen.
PM2.5 concentration alarm module: mainly through the loudspeaker of interior of mobile phone and vibrating motor to and report to user to the humiture information of environment and dust pollution information speech, pollution is reported to the police, the loudspeaker of main is interior of mobile phone.
Whole system mainly comprises the information gathering of Temperature Humidity Sensor to humidity-temperature index in environment, and dust sensor is to the information gathering of the heavy pellet of air.Processor is read by the total demand pairs certificate of I2C, and carries out corresponding operational analysis process in processor inside, draws relevant warm and humid angle value and the concentration index of pellet.Relevant information exists in internal memory by processor, and shows on liquid crystal display screen, and is reminded user by audio-frequency module.Processor also can upload the data to network analysis by radio-frequency module, provides a concrete Detection of Air Quality report, and provides the suggestion of trip.
With reference to Fig. 2, for PM2.5 dust concentration detecting method, comprise the following steps:
Step one, the inspection software opened in mobile phone, open Temperature Humidity Sensor and dust sensor further by inspection software;
Step 2, by processor calculating, by Temperature Humidity Sensor, and the data transformations that collects of dust sensor is temperature value and PM2.5 concentration value particularly;
The warm and humid angle value of display on step 3, observation display screen and PM2.5 concentration value, and with the parameter comparison such as the normal air index that stores in mobile phone, provide coarse analysis, and give alarm to pollution level;
Step 4, handset-selectedly whether whether coarse analysis to be uploaded.
If upload, then by radio-frequency module interconnection network, upload the data to network concrete analysis, and the result of concrete analysis is downloaded in mobile phone, terminate this operation; If do not uploaded, then directly terminate this operation.
1, not only there is the general utility functions of smart mobile phone, and there is Temperature and Humidity, the smart mobile phone of dust concentration measuring ability.Its feature comprises built-in transducer and can detect the humiture of the environment of surrounding and dust concentration, and transducer can be selected to open or close by software, effectively decreases power consumption.
Described built-in sensors is made up of Temperature Humidity Sensor and dust sensor.Temperature Humidity Sensor inside is integrated with hygrometric senser, temperature element, AD converter and serial interface circuit, and inner integrated dependent correction program, can accurately to the humiture information of outside.
2. dust sensor adopts particle counting principle.Arrange heater in module, heating makes air-flow rise, and extraneous air enters inside modules, and when passing through if any particles such as dust, block LED light source, photoelectric detector can't detect light source, and photoelectric detector then electronegative potential exports; As passed through without particle, then photoelectric detector high potential exports, and forms PMW pulse width modulating signal, and signal exports through amplifying.Low pulsation rate and the powder dust particle number of transducer are linear.By calculating the ratio of low pulse in certain hour, with reference to corresponding characteristic curve, the population detected can be obtained, thus calculate the concentration of PM2.5.
3. transducer is built in Mobile phone PCB, operates without the need to external connection module, only need can carry out detection operation at upper layer open software, simple to operation.Transducer just can be opened when opening testing software, and when software is not opened, transducer is in closed condition, effectively decreases the power consumption of mobile phone.
4. can be analyzed by the data upload network recorded by radio-frequency module for the mobile phone detecting PM2.5 concentration described in, to the analysis report that user is concrete, and proposes the suggestion of trip to user.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.