CN105206013A - Multipoint humidity data collection method based on WiFi hotspot SSIDs - Google Patents
Multipoint humidity data collection method based on WiFi hotspot SSIDs Download PDFInfo
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- CN105206013A CN105206013A CN201510500857.4A CN201510500857A CN105206013A CN 105206013 A CN105206013 A CN 105206013A CN 201510500857 A CN201510500857 A CN 201510500857A CN 105206013 A CN105206013 A CN 105206013A
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Abstract
The invention relates to a multipoint humidity data collection method based on WiFi hotspot SSIDs. WiFi modules serving as APs are installed on humidity sensors, and the SSIDs of the APs contain humidity information changing along with actually monitored humidity; when a sampling value changes, the SSID values of the WiFi modules are generated and modified according to the sampling value and the names, the IDs and other information of the sensors, the APs are restarted, and then SSID broadcasting is started; an APP on an intelligent terminal calls an operating system interface to search for a peripheral WiFi hotspot list through a wireless network card; hotspot information of the humidity sensors is analyzed from the list, and the current humidity of the sensors is analyzed from the SSID values. According to the method, the humidity values of all collection points in a space can be directly read through a running APP in an intelligent mobile phone with the Wi-Fi function, and real-time changing can be achieved.
Description
Technical field
The present invention relates generally to WIFI sensor field, particularly based on the multiple spot humidity data acquisition method of Wi-Fi hotspot title.
Background technology
Humidity is the important indicator ensureing daily life and work, strengthens humidity collection work and has then become matter of utmost importance.Humidity collection method is the earliest artificial collection, and the method not only wastes time and energy, and the more important thing is the humidity collection for some airtight environment, and artificial intervention meeting welding, causes the error of image data.Therefore, it is low to there is efficiency in humidity collection the earliest, and degree of accuracy is low, the shortcoming be of limited application.Subsequently, market has occurred utilize humidity sensor to realize wired humidity collection method.Although wired humidity collection method reaches reduction manpower to a certain extent, increase range of application, improve system stability, strengthening the effect of system accuracy, there is fatal defect in wired humidity collection.Because wired humidity collection is subject to the restriction of entity connecting line, dispose upper limit use scenes in system.Such as, wired humidity collection method is applied in multiple spot humidity data acquisition system, because each collection point needs separately independently signal wire, in order to realize multipoint acquisition, then likely use hundreds of signal wire, so not only damage image appearance, and the problem such as oxidation, corrosion that line exists, it is made to be difficult to maintenance in the later stage, cost intensive.
In recent years, the appearance of wireless humidity collection, effectively overcomes the restraining factors of wired humidity collection.Wireless networking common is at present mostly the LAN (Local Area Network) of privately owned standard, also has the acquisition system of the networks such as Zigbee, z-wave, the Wi-Fi meeting international standard.Exactly because but have various Wireless Access Standard, and each other again cannot be compatible, often need can collect data by special access device, the equipment therefore also just causing nowadays wireless humidity collection is various, the phenomenon that technical sophistication degree rises.
But constantly universal along with smart mobile phone is that the intelligent terminal of representative also just becomes design proposal relatively easily as the multiple spot humidity collection system of central data node with smart mobile phone.
Goal of the invention
Object of the present invention is exactly reduce the data communication link between humidity sensor to intelligent terminal, makes intelligent terminal can directly collect multiple spot humidity value in space when not connecting any network.
The technical scheme that technical solution problem of the present invention is taked:
A WiFi module as AP humidity sensor is equipped with.Comprise humidity information in the SSID (i.e. hotspot name) of this AP, and regularly change along with the humidity value of actual monitoring.Adopt between humidity sensor and WiFi module and can adopt multiple bus communication.Such as WiFi module is as main equipment, and humidity sensor, as from equipment, is communicated by I2C bus between the two.
(1) processing unit in Wi-Fi module regularly inquires about the sampled value of humidity sensor.
(2) when sampled value changes, generate according to sampled value and the information such as sensor name, ID and revise the SSID value of WiFi module, and restarting AP, after starting AP, opening SSID broadcast.
(3) the APP distributing operation system interface on intelligent terminal, by the Wi-Fi hotspot list of wireless network card search periphery.From list, parse the hot information of humidity sensor, and parse the current humidity of this sensor from SSID value, show user.
Beneficial effect of the present invention: adopt the method to carry out in the space of multiple spot humidity collection in deployment, as long as use the smart mobile phone possessing Wi-Fi function, rely on the APP that it runs, just directly can read the humidity value of each collection point in space, and can real-time change.Than scheme in the past, eliminate a lot of intermediate link.Substantially the effect of " install immediately, use immediately " is reached.
Accompanying drawing explanation
Fig. 1 is humidity sensor hardware configuration schematic diagram;
Fig. 2 humidity collection system sensor deployment diagram;
Fig. 3 mobile phone A PP parting line block diagram.
Embodiment:
Be different from traditional wireless humidity collection, the multiple spot humidity collection based on Wi-Fi Hotspot title has does not need networking to connect, and does not also need special access device.As long as use the mobile phone of conventional band Wi-Fi function electronic products such as (or) PC to get the list of periphery Wi-Fi Hotspot, just multiple spot humidity can be gathered.
For the scene that accuracy requirement is not high, humidity change is slowly.The speed that Wi-Fi Hotspot upgrades, generally at about 5 ~ 10s, can meet the change of most of humidity and gather renewal requirement of real-time.
Monitor for multiple spot humidity solid in silo, illustrate embodiments of the present invention.
Single collection point can only collect the humidity in the surrounding limiting sense of collection point, and the data that single collection point collects obviously are not enough to the humidity value that whole silo is described.In this case, a set of " multiple spot humidity collection " system is just needed.Dispose this system in silo after, directly can be checked the humidity in silo by the smart mobile phone of the android system of main flow.At this moment, the present invention is utilized just can to realize this demand very soon.
As shown in Figure 1, design humidity sensor assembly
Sensor section
The simulating signal of humidity is converted to the digital signal that can be processed by sensor primary responsibility, and provides communication interface, and making it possible to processing unit can access.
Data processing unit
Data processing unit is responsible for periodically reading humidity from sensor, and carries out calibration computing, then that the vendor code of sensor, model, id information and actual humidity is regular straight through certain, combination producing SSID, and configuration is to communication module.
Such as, sensor manufacturer code is " DL ", and model is " 3133 ", and sensor ID is " K0118B ", and current actual humidity is 31%.Then the SSID (maximum length 32 character) of plaintext version can the mode of direct splicing be generated as:
“DL_3133_K0118B_31”
Wi-Fi communication module
Wi-Fi communication module is responsible for starting Wi-Fi hotspot, and is broadcasted away by the SSID that data processing unit generates.
Power module
Power module is responsible for powering to sensor, data processing unit and communication module.For ease of arbitrarily installing in space, and reducing sensor bulk, adopting lithium battery power supply.
Sensor deployment
Humidity sensor is deployed on indoor multiple collection points.Need during deployment whether can effectively to be got by the focus signal of intelligent terminal (can with mobile phone) testing sensor.When space is very large, there is a lot of obstruct (such as multi-layer walls) centre, or when the position of sensor deployment disperses very much, uses mobile phone just to obtain less than focus, also just beyond the limit of power of this method.As in Fig. 2, the position at this sensor place of K0118G has exceeded the range of receiving of intelligent terminal.If need to measure K0118G this sensor, picker need by intelligent terminal near this sensor some.
Intelligent terminal APP designs
The Wi-Fi hotspot scan interface of intelligence APP calling system, obtains the hot information of periphery.By the rule of specifying, filter out the focus of humidity sensor, and therefrom parse the current humidity value of different humidity sensor.
For the smart mobile phone of the operation Andriod system of main flow.A list is designed at main interface, shows the another name of each sensor and current measurement value sensor above.There is a filtercondition input frame below, can fill in the sensor " plant code " and " model code " that need to monitor, when not needing to filter a certain, filling in sky and getting final product (referring to Fig. 3).
Claims (3)
1., based on the multiple spot humidity data acquisition method of Wi-Fi hotspot title, it is characterized in that the method comprises the following steps:
Humidity sensor is deployed in the multiple test point in space by step 1., guarantees that intelligent terminal can get the focus signal of testing sensor; A WiFi module as AP described humidity sensor is equipped with; Comprise humidity information in the hotspot name of this AP, and along with actual monitoring humidity specify the phase change;
Processing unit in step 2.Wi-Fi module regularly inquires about the sampled value of humidity sensor;
Step 3., when sampled value changes, generates and revises the SSID value of WiFi module according to sampled value and sensor name, id information, and restarting AP, opens SSID broadcast after starting AP;
APP distributing operation system interface on step 4. intelligent terminal, by the Wi-Fi hotspot list of wireless network card search periphery; From list, parse the hot information of humidity sensor, and parse the current humidity of this sensor from SSID value, show user.
2. multiple spot humidity data acquisition method according to claim 1, is characterized in that: described WiFi module is as main equipment, and humidity sensor, as from equipment, is communicated by I2C bus between the two.
3. multiple spot humidity data acquisition method according to claim 1, is characterized in that: humidity sensor and WiFi module adopt lithium battery power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510500857.4A CN105206013A (en) | 2015-08-14 | 2015-08-14 | Multipoint humidity data collection method based on WiFi hotspot SSIDs |
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| CN201510500857.4A CN105206013A (en) | 2015-08-14 | 2015-08-14 | Multipoint humidity data collection method based on WiFi hotspot SSIDs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850513A (en) * | 2016-06-07 | 2016-08-17 | 宁夏大学 | Material stirring machine and automatic material stirring method |
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Application publication date: 20151230 |
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