CN101123747A - Method and mobile phone for exchanging location information via mobile phone short message - Google Patents
Method and mobile phone for exchanging location information via mobile phone short message Download PDFInfo
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- CN101123747A CN101123747A CNA2007100753491A CN200710075349A CN101123747A CN 101123747 A CN101123747 A CN 101123747A CN A2007100753491 A CNA2007100753491 A CN A2007100753491A CN 200710075349 A CN200710075349 A CN 200710075349A CN 101123747 A CN101123747 A CN 101123747A
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Abstract
The invention provides a method and a mobile phone for exchanging position information with mobile short message so that users in different position can receive mutual position information conveniently and accurately. The mobile phone comprises: a mobile phone radiofrequency module (90); a core processing module (10); a memory (301) stored with map information and line information; a command input unit (50); a display unit (40); a GPS receiving module (80) mutually connected with the core processing module (10); a GPS processing engine (108) and a GPS information short message unit (110) arranged in a central processing unit (104). Compared with the prior art, the invention has the advantages that the two mobile phone users can know the current position of each other conveniently when talking mutually, and then one of the two users can be guided to move closer to the other user; the invention has simple operation and low cost.
Description
Technical field
The present invention relates to a kind of method and mobile phone thereof of exchange position information, relate in particular to a kind of method and mobile phone thereof by the SMS exchange position information.
Background technology
GPS is the abbreviation of Global Positioning System, i.e. GPS (Global Position System).The location of GPS is to utilize the basic triangle positioning principle of satellite, the GPS receiving system measures distance with the transmission time of measuring radio signal, calculate the longitude and latitude and the height above sea level of current location according to the different satellite radio electric wave transmission times more than 3, this is the observed pattern of a kind of high orbit and precision positioning.
The development of mobile phone now is very swift and violent, and mobile phone also has certain processing capabilities.High-end mobile phone can be realized multiple function by call the different software of operation as operating systems such as WIN32.A lot of manufacturers have also released the mobile phone with GPS location and navigation feature.This mobile phone with GPS function generally has simple navigation feature, and the user can only be known own current position by the map of handset displays.
But the user of diverse location often needs to learn the other side's definite position.The current method of taking is the accurate position that the mode of GPS location tracking is known other people.But need real-time writing to each other between this mode person of being positioned and the person of being positioned, expend a large amount of hardware resources, and use also very inconvenient.And arbitrarily link up arbitrarily accurately between the user that more specific location information is the problem that exists in the reality always.For example, first monarch dining room just outside has a dinner, and second monarch just in time phones the first monarch, wish both sides' what is said or talked about thing of having a meal together, but the second monarch does not know the position in dining room again, and landform and road conditions near the dining room are not yet done again.At this time, first monarch must spend the place that long time is described the dining room, and the second monarch may just must confirm whether the path is correct with the first monarch every the stretch journey or every a period of time.Quite lose time and money.Another kind of situation is that first monarch itself may also be unfamiliar with the position in dining room.At this time, both sides want the correct position of ditch pass-out, and are just quite difficult.
Summary of the invention
Technical problem to be solved by this invention is that convenient and feasible exactly two cellphone subscribers that are in diverse location obtain mutual alignment information, and a cellphone subscriber that can guide wherein draws close to another cellphone subscriber.
In order to solve the problems of the technologies described above, the invention provides a kind of method by the SMS exchange position information, the mobile phone of emission side can send to the positional information of oneself recipient's mobile phone by way of short messages, it is characterized in that, described mobile phone comprises, GPS receiver module, GPS information note unit;
Described method comprises the steps:
The GPS locator data that the GPS receiver module is received is obtained in the GPS information note unit of the mobile phone of a1. described emission side;
As note is write described GPS locator data in the GPS information note unit of the mobile phone of b1. described emission side, and sends to described recipient's mobile phone by the mobile phone radio frequency module;
C1. described recipient's mobile phone receives the note that comprises the GPS locator data, reads this GPS locator data, and demonstrates the position of this GPS locator data correspondence.
The GPS locator data that described GPS receiver module receives is the character string of serial mode transmitting-receiving, and the content of described character string comprises,
The string head, the beginning of expression character string;
State value represents whether this character string is effective, if when current location can't receive the above positioning satellite signal of 3 or 3, this value is invalid value;
Time, form is hour, minute, second, represents the current GMT;
Positional information comprises: the hemisphere value of the hemisphere at the longitude of the longitude of the dimension of the dimension values of expression current location, expression current location and expression current location place, character " n " the expression Northern Hemisphere, character " s " the expression Southern Hemisphere;
Postamble, the end of expression character string.
Described SMS data are SMS pattern, EMS pattern or MMS pattern.
By above method, client's mobile phone can send to own current position information on the target mobile phones by way of short messages, allows can inform the accurate position that the other side oneself is current between the cellphone subscriber of diverse location.
As an embodiment more specifically of the present invention, described GPS information note unit comprises, with the two-way GPS decoding unit that is connected of described GPS receiver module; With the two-way short message transceiving module that is connected of described mobile phone radio frequency module; Respectively with the two-way note processing module that is connected of described GPS decoding unit, GPS processing engine and short message transceiving module;
Described b1 step comprises the steps:
The GPS decoding unit of the mobile phone of described emission side is received the GPS locator data from described GPS receiver module, and reads corresponding positional information, and by described note processing module this positional information is write as note;
Described short message transceiving module hands over this note described mobile phone radio frequency module to send to described recipient's mobile phone.
Described c1 step comprises the steps:
The mobile phone of described emission side is received note, then judges whether to including the note of positional information; If,
The note processing module of the mobile phone of described emission side is then read positional information in this note;
And show the particular location of this positional information correspondence.
The present invention also provides a kind of mobile phone by the note exchange position information, comprising:
The mobile phone radio frequency module is used to receive and dispatch communication signal;
Core processing module includes: carry out CPU, video input and output and the analog input output of data processing operation;
Memory with mutual two-way connection of described core processing module, is used for storing subscriber information;
The sound playing module is connected with described core processing module, is used to play described core processing module output audio signal;
Command input unit is used for inputting user command to described core processing module;
Display unit is connected with described core processing module is two-way;
Cartographic information and route information are stored in the described memory;
The GPS receiver module is connected with described core processing module is two-way, is used to receive the GPS locator data;
The GPS processing engine is arranged in the described CPU, is used for handling the GPS locator data in conjunction with described cartographic information and route information;
GPS information note unit is arranged in the described CPU, with mutual two-way connection of described GPS processing engine, is used for transforming mutually GPS locator data and the SMS data that described GPS receiver module receives.
Wherein, described cartographic information is corresponding map, and described route information is route between the diverse location and a relevant parameters on the map.
By above technical scheme, the present invention can, the positional information that the user can send oneself by the mode of SMS is to the other side's mobile phone, perhaps the mode by SMS, know the other side's position, and demonstrating the definite position of the other side on map on the mobile phone.
As a kind of embodiment of the present invention, described GPS information note unit comprises, the GPS decoding unit with described two-way connection of GPS receiver module, is used for reading positional information and temporal information from the GPS locator data; Short message transceiving module with described two-way connection of mobile phone radio frequency module, is used for receiving and sending the SMS data; The note processing module, respectively with described GPS decoding unit, GPS processing engine and short message transceiving module is two-way is connected, being used for that described positional information and temporal information are write as the SMS data format gives described short message transceiving module and sends, and, read the positional information and the temporal information that comprise in the SMS data that contain positional information and temporal information of described short message transceiving module reception.
The GPS locator data that described GPS receiver module receives is the character string of serial mode transmitting-receiving, and the content of described character string comprises,
The string head, the beginning of expression character string;
State value represents whether this character string is effective, if when current location can't receive the above positioning satellite signal of 3 or 3, this value is invalid value;
Time, form is hour, minute, second, is used to represent the current GMT;
Dimension, the dimension values of expression current location;
Longitude, the longitude of expression current location;
The hemisphere value, the hemisphere at expression current location place, wherein E represents the Eastern Hemisphere, S represents the Southern Hemisphere;
Postamble, the end of expression character string.
Described SMS data are SMS pattern, EMS pattern or MMS pattern.
The present invention can further have the function of GPS location navigation.The mobile phone of this note exchange position information also comprises, gravity accelerator is connected with described core processing module, is used to measure the current direction of motion.
Described GPS processing engine comprises, position processing module, input/output interface circuit, and, respectively with the two-way route processing module that is connected of position processing module and input/output interface circuit;
Wherein, the route processing module is connected with described memory is two-way, described position processing module is connected with memory with described GPS module, gravity accelerator, command input unit respectively, and the described respectively video input and output of input/output interface circuit are exported two-way the connection with analog input.
Described GPS module comprises connection successively, gps antenna, low noise amplifier, GPS filter and GPS unit; Described GPS unit is connected with described GPS processing engine.
Described memory is NAND gate memory and the two-in-one composite memory of random asccess memory, perhaps for passing through expansion card interface and the two-way T-FLASH card that is connected of described core processing module.Like this, further promoted memory headroom of the present invention, for further enhancement function provides the relevant hardware basis.
The button of described command input unit for being connected with described core processing module.
Described command input unit with display unit is and the two-way described touch screen module that is connected of core processing module;
Wherein, described touch screen module comprises, demonstration/touch modules, and described demonstration/touch modules is connected with described core processing module is two-way.
Compared with prior art, the invention has the advantages that: realize the navigation feature of mobile phone on the basis of relatively inexpensive mobile phone hardware resource, the cellphone subscriber that the positional information that makes two cellphone subscribers that are in diverse location can obtain the other side mutually also can be guided wherein draws close to another cellphone subscriber.
Description of drawings
Fig. 1 is the structural representation block diagram of the present invention by the mobile phone of note exchange position information;
Fig. 2 is the structural representation block diagram of CPU of the present invention;
Fig. 3 is the structural representation of GPS processing engine of the present invention;
Fig. 4 sends the workflow schematic diagram of GPS locator data by note for the mobile phone of the present invention side of emission;
Fig. 5 is the work schematic diagram of the note that includes the GPS locator data of the recipient's of the present invention handset processes side of emission mobile phone transmission;
Fig. 6 is the workflow diagram of GPS positioning function of the present invention;
Fig. 7 is the workflow diagram of navigation feature of the present invention;
Fig. 8 is the structural representation block diagram of the present invention by the mobile phone of note exchange position information.
Embodiment
Be described further below in conjunction with most preferred embodiment shown in the drawings.
As shown in Figure 1, mobile phone by the note exchange position information comprises, CPU 10, mobile phone radio frequency module 90, display unit 40, command input unit 50, GPS receiver module 80, gravity accelerator 805, voice receiving circuit 604, microphone 603, sound playing module 60, real-time clock 105, memory 301 and power management control module.
Wherein, core processing module 10 comprises, be used for calculation process CPU 104, be used to the analog input output 103 of handling and exporting the video input and output 103 of shows signal and being used for analog such as sound.Wherein, described CPU 104 comprises, the GPS processing engine 108 of mutual two-way connection and GPS information note unit 110.Memory 301 and described 10 two-way connections of core processing module.Power management control module 101 also with 10 two-way connections of core processing module.
Real-time clock 105 provides real-time temporal information to described core processing module 10.Sound playing module 60 plays sound according to the audio signal of described simulation output.Display unit 40 is used to show described video output 102 vision signals of being exported.
The user can be by microphone 603 and voice receiving circuit 604 to described core processing module 10 sound import information.To described core processing module 10 inputting user commands, described command input unit 50 can adopt button or touch panel unit to the user by command input unit 50.
As shown in Figure 2, GPS information note unit 110 comprises, GPS decoding unit 111, note processing module 112 and short message transceiving module 113.
Wherein, GPS decoding unit 111 and described 80 two-way connections of GPS receiver module are used for reading positional information and temporal information from the GPS locator data; Short message transceiving module 113 and described two-way connection of mobile phone radio frequency module are used for receiving and sending the SMS data; Note processing module 112 respectively with described GPS decoding unit 111, GPS processing engine 108 and 113 two-way connections of short message transceiving module, being used for that described positional information and temporal information are write as the SMS data format gives described short message transceiving module 113 and sends, and, read the positional information and the temporal information that comprise in the SMS data that contain positional information and temporal information of described short message transceiving module 113 receptions.
As shown in Figure 3, described GPS processing engine 108 comprises, position processing module 128, input/output interface circuit 138 and respectively with position processing module 128 and the input/output interface circuit 138 two-way route processing modules 118 that are connected.
Described route processing module 118 and described 301 mutual two-way connections of memory.Described position processing module 128 is connected with described GPS module 80, gravity accelerator 805, command input unit 50 and memory 301 respectively.103 mutual two-way connections are exported in described respectively video input and output 102 of described input/output interface circuit 138 and analog input.
Store cartographic information and route information in described memory 301 the insides, also store the software that is used to realize corresponding function simultaneously, wherein, cartographic information adopts the storage of high compression rate form, route information to reduce memory space, is accelerated computational speed through optimal design.
As shown in Figure 4, the GPS receiver module 80 of the mobile phone that described emission is put is sought satellite and is read the GPS locator data of satellite transmission, and this GPS locator data is the character string of serial mode transmitting-receiving, and the content of described character string comprises, string head, the beginning of expression character string; State value represents whether this character string is effective, if when current location can't receive the above positioning satellite signal of 3 or 3, this value is invalid value; Time, form is hour, minute, second, is used to represent the current GMT; Dimension, the dimension values of expression current location; Longitude, the longitude of expression current location; The hemisphere value, the hemisphere at expression current location place, wherein E represents the Eastern Hemisphere, S represents the Southern Hemisphere; Postamble, the end of expression character string.
Then, the time and the positional information of GPS locator data are read in described GPS information note unit 110, and are write as the SMS data format, hand over described short message transceiving module 113 to send this and include the mobile phone of the note of GPS locator data to the recipient.
Whether as shown in Figure 5, the short message transceiving module 113 of described recipient's mobile phone receives note by mobile phone radio frequency module 90, and according to the information format analysis of this note, be the note that contains the GPS locator data.If contain the note of GPS locator data, then read corresponding positional information and temporal information by described note processing module 112.This information is by described GPS processing unit processes, and synthetic map information, shows on described display unit 40.
As shown in Figure 6, described GPS module 80 transmits the GPS locator data to described GPS processing engine 108, and the position processing module 128 of described GPS processing engine 108 will obtain real-time positional information.
This GPS locator data is a tandem communications parameter that includes real-time positional information, and GPS processing engine 108 will analyze longitude and the dimensional information that this character string comprises, and be set at current location.
As shown in Figure 6, described GPS processing engine 108 will be according to cartographic information in current location information and the memory and route information, and 40 to draw with the current location be the map and the route map at center in display unit.
Then, the objective that user's input will be gone, if this destination address is effective, then described GPS processing engine 108 will be sought the route from current place to objective.If find respective routes, storage and the route that on described display unit 40, draws and find.
If user's current location changes, then collect position and the route information of last time, and the position of last time and route information are superimposed on the cartographic information, find out the route of current location to objective.
Above navigation procedure finishes after the user cancels this process or arrives objective.
As shown in Figure 7, described GPS processing engine 108 will be according to cartographic information in current location information and the memory and route information, and 40 to draw with the current location be the map and the route map at center in display unit.
Then, the objective that user's input will be gone, if this destination address is effective, then described GPS processing engine 108 will be sought the route from current place to objective.If find respective routes, storage and the route that on described display unit 40, draws and find.
If user's current location changes, then collect new current location neighbouring cartographic information and route information, and show near the map the current location that makes new advances, find out the route to objective when new front position.When arriving objective, the prompting user has arrived objective.
Above navigation procedure finishes after the user cancels this process or arrives objective.
As shown in Figure 8, function of the present invention can also further strengthen.
Bluetooth unit 70 and described 10 two-way connections of core processing module that Bluetooth antenna 701 is arranged.
Radio-frequency antenna 907, radio-frequency (RF) switch 902, radio-frequency filter 904 and the radio-frequency (RF) transceiver 906 and described core processing module 10 two-way are connected of described mobile phone radio frequency module 90 by connecting successively.Described mobile phone radio frequency module 90 also comprises, with the described core processing module 10 two-way radio-frequency (RF) power amplification 903 and the radio frequency crystal oscillator 905 that outputs to described radio-frequency (RF) transceiver 906 that are connected and output to described radio-frequency (RF) switch 902.The frequency of described radio frequency crystal oscillator 905 is 104MHz.
Can be by button 501 to described core processing module 10 inputting user command information.The present invention can also have and the described core processing module 10 two-way touch screen modules that are connected 403, can realize showing the function of output and user command information input simultaneously.Described touch screen module 403 comprises and the described core processing module 10 two-way demonstration/touch modules that are connected 401, and is connected with described core processing module 10, and the touch-screen that is used to drive demonstration/touch modules 401 drives 401.
Claims (10)
1. method by the SMS exchange position information, the mobile phone of emission side can send to the positional information of oneself recipient's mobile phone by way of short messages, it is characterized in that, described mobile phone comprises, GPS receiver module (80), GPS processing engine (108), with the mutual two-way GPS information note unit (110) that is connected of described GPS processing engine (108);
Described method comprises the steps:
The GPS locator data that GPS receiver module (80) is received is obtained in the GPS information note unit (110) of the mobile phone of a1. described emission side;
As note is write described GPS locator data in the GPS information note unit (110) of the mobile phone of b1. described emission side, and sends to described recipient's mobile phone by mobile phone radio frequency module (90);
C1. described recipient's mobile phone receives the note that comprises the GPS locator data, reads this GPS locator data, and demonstrates the position of this GPS locator data correspondence.
2. the method by the SMS exchange position information according to claim 1 is characterized in that, the GPS locator data that described GPS receiver module (80) receives is the character string of serial mode transmitting-receiving, and the content of described character string comprises,
The string head, the beginning of expression character string;
State value represents whether this character string is effective, if when current location can't receive the above positioning satellite signal of 3 or 3, this value is invalid value;
Time, form is hour, minute, second, represents the current GMT;
Positional information comprises: the hemisphere value of the hemisphere at the longitude of the longitude of the dimension of the dimension values of expression current location, expression current location and expression current location place;
Postamble, the end of expression character string.
3. according to claim 1 or 2 described methods, it is characterized in that by the SMS exchange position information,
Described GPS information note unit (110) comprises, with the two-way GPS decoding unit (111) that is connected of described GPS receiver module (80); With the two-way short message transceiving module that is connected of described mobile phone radio frequency module (113); Respectively with the two-way note processing module (112) that is connected of described GPS decoding unit (111), GPS processing engine (108) and short message transceiving module (113);
Described b1 step comprises the steps:
The GPS decoding unit (111) of the mobile phone of described emission side is received the GPS locator data from described GPS receiver module (80), and reads corresponding positional information, and by described note processing module (112) this positional information is write as note;
Described short message transceiving module (113) hands over this note described mobile phone radio frequency module (90) to send to described recipient's mobile phone.
4. according to claim 1 or 2 described methods, it is characterized in that described c1 step comprises the steps: by the SMS exchange position information
The mobile phone of described emission side is received note, then judges whether to including the note of positional information; If,
The note processing module (112) of the mobile phone of described emission side is then read positional information in this note;
And show the particular location of this positional information correspondence.
5. according to the described method of above arbitrary claim, it is characterized in that described SMS data are SMS pattern, EMS pattern or MMS pattern by the SMS exchange position information.
6. mobile phone by the note exchange position information comprises:
Mobile phone radio frequency module (90) is used to receive and dispatch communication signal;
Core processing module (10) comprises, carries out CPU (104), video input and output (103) and the analog input output (103) of data processing operation;
Memory (301) with mutual two-way connection of described core processing module (10), is used for storing subscriber information;
Command input unit (50) is used for inputting user command;
Display unit (40) is with two-way connection of described core processing module (10);
It is characterized in that, also comprise:
Cartographic information and route information are stored in the described memory (301);
GPS receiver module (80) with two-way connection of described core processing module (10), is used to receive the GPS locator data;
GPS processing engine (108) is arranged in the described CPU (104), is used for handling the GPS locator data in conjunction with described cartographic information and route information;
GPS information note unit (110) is arranged in the described CPU (104), with mutual two-way connection of described GPS processing engine (108), is used for transforming mutually GPS locator data and the SMS data that described GPS receiver module (80) receives.
7. the mobile phone by the note exchange position information according to claim 6 is characterized in that, described GPS information note unit (110) comprises,
GPS decoding unit (111) with two-way connection of described GPS receiver module (80), is used for reading positional information and temporal information from the GPS locator data;
Short message transceiving module (113) with described two-way connection of mobile phone radio frequency module, is used for receiving and sending the SMS data;
Note processing module (112) is respectively with described GPS decoding unit (111), GPS processing engine (108) and two-way connection of short message transceiving module (113); Being used for that described positional information and temporal information are write as the SMS data format gives described short message transceiving module (113) and sends, and, read the positional information and the temporal information that comprise in the SMS data that contain positional information and temporal information of described short message transceiving module (113) reception.
8. the mobile phone by the note exchange position information according to claim 1 is characterized in that, also comprises,
Gravity accelerator (805) is connected with described core processing module (10), is used to measure the current direction of motion.
9. the mobile phone by the note exchange position information according to claim 8, it is characterized in that, described GPS processing engine (108) comprises, position processing module (128), input/output interface circuit (138), and, respectively with the two-way route processing module (118) that is connected of position processing module (128) and input/output interface circuit (138);
Described route processing module (118) and two-way connection of described memory (301), described position processing module (128) is connected with described GPS module (80), gravity accelerator (805), command input unit (50) and memory (301) respectively, and (103) are two-way is connected with described video input and output (102) and analog input output respectively for input/output interface circuit (138).
10. the mobile phone by the note exchange position information according to claim 1 is characterized in that, described GPS module (80) comprises,
Connect gps antenna (804), low noise amplifier (803), GPS filter (802) and GPS unit (801) successively; Described GPS unit (801) is connected with described GPS processing engine (108).
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100753491A CN101123747A (en) | 2007-07-27 | 2007-07-27 | Method and mobile phone for exchanging location information via mobile phone short message |
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| CNA2007100753491A CN101123747A (en) | 2007-07-27 | 2007-07-27 | Method and mobile phone for exchanging location information via mobile phone short message |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102422624A (en) * | 2009-03-30 | 2012-04-18 | 诺基亚公司 | Method and apparatus for illustrative representation of a text communication |
| CN101312573B (en) * | 2008-07-08 | 2012-05-09 | 深圳盈烨创新通讯技术有限公司 | GPS mobile phone and GPS monitoring system |
| CN102547555A (en) * | 2010-12-17 | 2012-07-04 | 沈阳新邮通信设备有限公司 | Mobile phone and method for tracing and positioning between mobile phones |
| CN102595308A (en) * | 2011-01-18 | 2012-07-18 | 富泰华工业（深圳）有限公司 | Object locating system and method |
| CN101287162B (en) * | 2008-05-16 | 2012-08-15 | 华为技术有限公司 | Generating method, device for message signature, message signing system |
| CN103096277A (en) * | 2013-01-24 | 2013-05-08 | 东莞宇龙通信科技有限公司 | Method and device for obtaining geographical location information |
| TWI423179B (en) * | 2010-12-09 | 2014-01-11 | Acer Inc | Information transmission systems and methods |
| CN106556558A (en) * | 2015-09-28 | 2017-04-05 | 东莞前沿技术研究院 | Haze monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101287162B (en) * | 2008-05-16 | 2012-08-15 | 华为技术有限公司 | Generating method, device for message signature, message signing system |
| CN101312573B (en) * | 2008-07-08 | 2012-05-09 | 深圳盈烨创新通讯技术有限公司 | GPS mobile phone and GPS monitoring system |
| CN102422624A (en) * | 2009-03-30 | 2012-04-18 | 诺基亚公司 | Method and apparatus for illustrative representation of a text communication |
| TWI423179B (en) * | 2010-12-09 | 2014-01-11 | Acer Inc | Information transmission systems and methods |
| CN102547555A (en) * | 2010-12-17 | 2012-07-04 | 沈阳新邮通信设备有限公司 | Mobile phone and method for tracing and positioning between mobile phones |
| CN102595308A (en) * | 2011-01-18 | 2012-07-18 | 富泰华工业（深圳）有限公司 | Object locating system and method |
| CN103096277A (en) * | 2013-01-24 | 2013-05-08 | 东莞宇龙通信科技有限公司 | Method and device for obtaining geographical location information |
| CN103096277B (en) * | 2013-01-24 | 2017-05-17 | 东莞宇龙通信科技有限公司 | Method and device for obtaining geographical location information |
| CN106556558A (en) * | 2015-09-28 | 2017-04-05 | 东莞前沿技术研究院 | Haze monitoring system |
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