CN115410357A - Race field wind measuring command system and method based on narrow-band wireless ad hoc network - Google Patents
Race field wind measuring command system and method based on narrow-band wireless ad hoc network Download PDFInfo
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Abstract
The invention provides a competition field wind measuring command system and a method based on a narrow-band wireless ad hoc network, which comprises a multipoint high-precision wind measuring system, wherein the multipoint high-precision wind measuring system comprises a wind speed sensor, a wireless narrow-band ad hoc network acquisition end, a wireless narrow-band ad hoc network receiving end and an intelligent terminal; the wind speed sensor is connected with the wireless narrowband ad hoc network acquisition end through a connecting cable, and the wind speed sensor acquires data and then directly transmits the data to the wireless narrowband ad hoc network acquisition end through a connecting line; data collected by the wireless narrowband ad hoc network collection end are sent to the wireless narrowband ad hoc network receiving end through the wireless ad hoc network and then transmitted to the intelligent terminal through the Bluetooth, and the customized APP of the intelligent terminal is used for visually displaying the data and completing data recording in the background. The invention describes the ultra-fine time scale of the wind field of the snow event, realizes the real-time acquisition and analysis of the wind speed and the wind direction of the race field by a coach and athletes, improves the training efficiency and the race result, and reduces the injury risk.
Description
Technical Field
The invention belongs to the field of information, and particularly relates to a competition field wind measuring command system and method based on a narrow-band wireless ad hoc network.
Background
The snowy project requires the athlete to complete the actions of rotation, leaping and the like at high speed in the air and safely land at an optimal landing position. Therefore, small changes in wind speed and direction may have a significant effect on the satisfactory performance of the athlete, and may affect not only the athletic performance of the athlete, but also the safety of the athlete. The spatial relationship formed between the slope direction and the wind direction of different on-snow event tracks is very complex, and due to the uncertainty and the time-space variability of wind, the on-snow event national team very needs real-time and high-precision wind element information to support combat training and competition. Taking the free skiing air skill project as an example, in the whole movement process, the ambient wind can generate the downwind thrust, the upwind resistance and the lateral yawing force on the sportsman, thereby influencing the stability of the movement completion of the sportsman and the subsequent landing process. Meanwhile, the wind speed and the wind direction have volatility and random variability and are not easy to control, so that the safety of the personnel participating in the snow sports project is threatened. In the process of training and competition of athletes, the athletes and coaches need to adjust the on-site decision according to the real-time wind element information of the competition field.
At present, wind measurement of a training field of a national team of snowy projects still depends on an original wind measurement device of a wind direction flag, and athletes and coaches judge the wind speed and the wind direction in a track according to the waving form and direction of the wind direction flag.
In the field of meteorology, relevant workers complete wind measurement through a wind speed and direction sensor. At present, a plurality of wind measuring instruments comprise a rotary wind speed sensor, a thermal history wind speed sensor, an acoustic wind speed sensor and the like, and different wind speed sensors are suitable for different use scenes. After collecting sufficient meteorological information, meteorological personnel can carry out statistical analysis on wind field data to obtain statistical indexes such as maximum wind speed and average wind speed, and carry out visual display through modes such as wind rose diagrams.
The traditional wind vane-based approach has two major drawbacks: 1. lack of quantitative description of the wind, difficult to identify. The wind direction flags have various forms, so that athletes and coaches cannot accurately judge the wind speed and the wind direction at that time according to the wind direction flags, and make decisions mainly by depending on experience, so that misjudgments are easy to occur, and training and competition results and even safety risks are influenced. 2. The measurement range is limited. According to the wind tunnel experiment result of a research team, the shape of a wind direction flag is basically kept unchanged (close to the horizontal) when the wind speed is high, and the change of the wind speed is difficult to further reflect.
The wind speed sensor introduced into the meteorological field can solve the defects, but brings new problems: 1) Wind measuring instruments in weather often work independently to measure the wind speed and the wind direction of a single point position. And the wind speed and the wind direction of different point positions on the track are greatly different, so that the change of the wind field in a complex track field is difficult to describe by single-point wind measurement. 2) Lack of real-time data transmission link, the wind measuring instrument data export is difficult. Training decisions in sports competitions need to be completed within seconds, and the traditional work flow of firstly collecting data and then carrying out statistical analysis is difficult to meet the requirements of high real-time performance of on-snow project training and competitions. 3) And corresponding visualization means are lacked, so that the athlete and the coach cannot intuitively understand the wind speed and wind direction measurement result.
In summary, a set of high-precision high-real-time multipoint wind measuring system specially aiming at the training and competition of the snowy project is lacked at present.
Disclosure of Invention
Aiming at the problem that the wind direction flag wind measurement is lack of quantitative description in the prior art, the invention introduces an ultrasonic wind speed sensor, designs a special wind measurement scheme aiming at different characteristics of each type of snow project field, forms a multi-point wind measurement network and accurately measures the wind field information of different project fields; aiming at the problem of data processing lag of the wind speed sensor, the invention constructs a signal transmission system based on an ultra-narrow-band self-organizing mobile communication protocol, and can carry out real-time, encryption and high-fidelity transmission on data acquired by the wind speed sensor; aiming at the problem that a coach and athletes in a snowy project are difficult to understand wind measuring results, the invention introduces an intelligent terminal to receive, store, process and analyze wind field data, and utilizes developed special APP to display results in real time.
In order to achieve the purpose, the invention adopts the technical scheme that:
a competition field wind measuring command system based on a narrow-band wireless ad hoc network comprises a multipoint high-precision wind measuring system, wherein the multipoint high-precision wind measuring system comprises a wind speed sensor, a wireless narrow-band ad hoc network acquisition end, a wireless narrow-band ad hoc network receiving end and an intelligent terminal; the wind speed sensor is connected with the wireless narrowband ad hoc network acquisition end through a connecting cable, and the wind speed sensor directly transmits data to the wireless narrowband ad hoc network acquisition end through a connecting wire after acquiring the data; the data collected by the collection end of the wireless narrowband ad hoc network is sent to the receiving end of the wireless narrowband ad hoc network through the wireless ad hoc network, then is transmitted to the intelligent terminal through the Bluetooth, and is visually displayed by utilizing the customized APP of the intelligent terminal and the data recording is completed in the background; the wind speed sensor acquires second-level wind speed, wind direction, air temperature, relative humidity and air pressure data, and describes the ultra-fine time scale of the wind field of the on-snow event competition field, so that a coach and a sportsman can acquire and analyze the wind speed and the wind direction of the competition field in real time, the training efficiency and the competition result can be improved, and the injury risk of the sportsman is reduced.
Further, the intelligent terminal is a Pad, a mobile phone or a wristwatch.
Further, the wind speed sensor is an ultrasonic wind speed sensor; the wind speed sensor mounting assembly comprises a spring, a nut with a gasket, a mounting bracket and a stand column pipe; when the wind speed sensor is erected, the ground is supported and fixed by using a low-temperature-resistant and high-strength upright post pipe; then screwing out the nut with the washer by using a wrench, loosening the spring, and sleeving the mounting bracket on the upright post pipe; and finally, the north direction of the wind speed sensor points to the true north direction displayed by the compass, and the nut with the washer is screwed in, so that the mounting bracket is tightly attached to the upright post pipe.
Furthermore, a power supply and a data line of the wind speed sensor share one cable, 4 lines are contained in the cable, and the cable comprises 2 power lines and 2 RS485 data lines; the whole equipment box at the acquisition end of the wireless narrowband ad hoc network is supplied with power by using 24V direct current, and the 24V direct current is subjected to anti-surge treatment and then is connected with each wind speed sensor to supply power to the wind speed sensors; and after the RS485 data line is used for connecting all the wind speed sensors in series, the wind speed sensors are connected to a wireless narrowband ad hoc network collector in a collection box to provide the wind speed and wind direction service data for the collection box.
Furthermore, each wind speed sensor is provided with a different ID number, when a wireless narrowband ad hoc network acquisition end acquires data of one wind speed sensor, a data transmission instruction is issued first, wherein the instruction comprises the ID number, all the wind speed sensors receive the instruction at the same time, each wind speed sensor checks whether the ID number in the instruction is consistent with the ID number of the wind speed sensor, and if not, the instruction is ignored and no processing is performed; and otherwise, returning the data of the wind speed sensor to the acquisition end of the wireless narrowband ad hoc network according to the information in the command.
Furthermore, the data acquired by the acquisition end of the wireless narrowband ad hoc network is distributed to each receiving end of the wireless narrowband ad hoc network through the wireless narrowband ad hoc network; the wireless narrowband ad hoc network forms a wireless narrowband ad hoc network information transmission system through a physical layer, a network layer and a service layer, and end-to-end data transmission is completed by providing data transmission, channel access and routing functions; the service layer completes the data transmission function; the network layer is realized in all node equipment, and node access, frequency and time slot scheduling, interference avoidance, packet loss rate statistics, routing and dormancy functions are completed; the physical layer finally forms a control subframe and a data subframe; the control subframe is used for sending network access control information, network configuration information and scheduling information, and the data subframe is used for sending service data.
Further, the wireless narrowband ad hoc network receiving end receives the data and then transmits the data to the paired handheld intelligent terminal through Bluetooth; the method comprises the steps that APP on a handheld intelligent terminal periodically receives data of a snow project wind field through connection of Bluetooth equipment, the received racetrack wind data are analyzed and verified according to a Bluetooth data protocol, wind speed and wind direction data of positions where 3 to 15 wind speed sensors are located are obtained, wind measuring data are converted into comprehensive wind action indexes, wind stability, shooting impact points, next round of gun calibration parameter data and the like which affect a match, and the comprehensive wind action indexes, the wind stability, the shooting impact points, the next round of gun calibration parameter data and the like are stored in a file mode and a database mode and displayed on the intelligent terminal.
The invention also provides a command method of the competition field anemometry command system based on the narrow-band wireless ad hoc network, which comprises the following steps:
step 1) customizing a track wind measuring scheme and arranging wind speed sensors at a plurality of positions according to the site characteristics and team requirements;
step 2) connecting a plurality of wind speed sensors to a wireless narrowband ad hoc network acquisition end by using a connecting cable;
step 3) the acquisition end of the wireless narrowband ad hoc network is connected with a power supply;
step 4), using a customized intelligent terminal, connecting a wireless narrowband ad hoc network acquisition end through Bluetooth, and setting working frequency, the number of wind speed sensors and the number; if the signal lamp of the acquisition end of the wireless narrowband ad hoc network normally flickers, the acquisition end of the wireless narrowband ad hoc network normally acquires and distributes data;
step 5) turning on a power switch at a receiving end of the wireless narrowband ad hoc network, and setting working frequency through the intelligent terminal and the Bluetooth;
step 6), opening an APP of the customized intelligent terminal, connecting a receiving end of the wireless narrowband ad hoc network through Bluetooth, and if the wind field data is displayed normally, indicating normal work; selecting conventional numerical display and visual display of a wind field rendering map; the data sync is stored in the background as a txt file.
Has the beneficial effects that:
the system provides reliable basis in a brand-new multi-point accurate detection, rapid acquisition, real-time transmission and encrypted transmission mode, and obviously overcomes the defects of low information transmission amount, low precision, poor timeliness, poor confidentiality and the like of a single-point on-site manual observation, interphone in the past.
Drawings
FIG. 1 is a block diagram of a multi-point high-precision wind measuring system of the present invention;
FIG. 2 is a circuit connection diagram of a wind speed sensor and a wireless narrowband ad hoc network acquisition end;
FIG. 3 is a schematic diagram (horizontal layout) of a layout scheme of a wind measuring system in two sites in winter;
FIG. 4 is a schematic diagram (vertical layout) of a layout scheme of a wind measuring system in two sites in winter;
fig. 5 is a schematic view of interpolation rendering of an intelligent terminal wind field.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the competition field wind measurement command system based on the narrowband wireless ad hoc network of the present invention includes a multipoint high-precision wind measurement system, and the multipoint high-precision wind measurement system includes a wind speed sensor, a wireless narrowband ad hoc network acquisition end, a wireless narrowband ad hoc network receiving end, and an intelligent terminal. The wind speed sensor acquires second-level wind speed, wind direction, air temperature, relative humidity and air pressure data, can describe a wind field of a snow event competition field in a hyperfine time scale, provides information support for snow sports which are instantaneously changeable, and can give an alarm to athletes in time, delay training of high-risk actions and reduce injury risks if sudden changes of the wind speed and the wind direction are found. The wind speed sensor is connected with the wireless narrowband ad hoc network acquisition end through a connecting cable, and the wind speed sensor acquires data and then directly transmits the data to the wireless narrowband ad hoc network acquisition end through a connecting wire. Data that wireless narrowband ad hoc network gathered the end are sent for wireless narrowband ad hoc network receiving terminal through wireless ad hoc network, rethread bluetooth transmits intelligent terminal, utilize the APP of customization to carry out visual display and accomplish the record of data at the background to data, make things convenient for on snow project coach and sportsman to carry out the retake after training, the influence of different wind speed wind directions of analysis to the training score, formulate pertinence strategy and scheme, improve training efficiency and match score. The intelligent terminal can be a Pad, a mobile phone and a wristwatch. The time consumed for transmitting the data from the wind speed sensor to the intelligent terminal and displaying the data is not more than 0.5s, and the requirement of high timeliness of the project on the snow can be met.
The wind speed sensor is an ultrasonic wind speed sensor, preferably a WS500-UMB type intelligent meteorological sensor, and can acquire second-level wind speed, wind direction, air temperature, relative humidity and air pressure data. When the ultrasonic wind speed sensor is erected, the ground needs to be supported and fixed by using a low-temperature-resistant and high-strength upright column pipe.
As shown in fig. 2, after the ultrasonic wind speed sensor is fixed, the power supply and data connection line is connected to the acquisition end of the wireless narrowband ad hoc network. A power supply and a data line of the ultrasonic wind speed sensor share one cable, 4 lines are contained in the cable, and the cable comprises 2 power supply lines and 2 RS485 data lines. The whole equipment box at the acquisition end of the wireless narrowband ad hoc network needs 24V direct current for power supply, and the 24V direct current is subjected to anti-surge treatment and then is connected with each wind speed sensor for power supply. And after the RS485 data line is used for connecting all the wind speed sensors in series, the wind speed sensors are connected to a wireless narrowband ad hoc network collector in a collection box to provide business data such as wind speed, wind direction and the like for the wireless narrowband ad hoc network collector.
Each wind speed sensor can be provided with different ID numbers, when the acquisition end needs to acquire data of one of the wind speed sensors, a data transmission instruction is issued firstly, wherein the command comprises the ID number, all the wind speed sensors can simultaneously receive the command, each wind speed sensor checks whether the ID number in the command is consistent with the ID number of the wind speed sensor, if not, the wind speed sensor ignores the ID number and does not perform any processing. And otherwise, returning the data of the wind speed sensor to a wireless narrowband ad hoc network acquisition end according to the information in the command. Therefore, in order to acquire data of all the wind speed sensors, the central control chip needs to sequentially issue instructions to acquire data of corresponding wind speed sensors. The specific process is as follows:
step 1: the data acquisition unit sends an instruction for acquiring data of the first sensor device;
step 2: the first sensor returns data to the data acquisition unit;
and step 3: the data acquisition unit sends an instruction for acquiring data of the second sensor device;
and 4, step 4: the second sensor transmits data back to the data acquisition unit;
and so on.
And the data acquired by the acquisition end of the wireless narrowband ad hoc network is distributed to each receiving end of the wireless narrowband ad hoc network through the wireless narrowband ad hoc network. The wireless narrowband ad hoc network adopts a layered system, forms a wireless narrowband ad hoc network information transmission system through a physical layer, a network layer and a service layer, and completes end-to-end data transmission by providing functions of data transmission, channel access and route selection. The service layer mainly completes the data transmission function. The network layer is realized in all node devices, and the functions of node access, frequency and time slot scheduling, interference avoidance, packet loss rate statistics, routing and dormancy are completed. The physical layer eventually forms two subframes: control subframes and data subframes. The control subframe is used for sending network access control messages, network configuration messages and scheduling messages, and the data subframe is used for sending service data. The data sub-frame can be divided into a broadcast data sub-frame and a point-to-point data sub-frame, the broadcast data sub-frame mainly transmits broadcast service data, the size of the broadcast data sub-frame can be dynamically adjusted according to specific broadcast service volume, and the point-to-point data sub-frame mainly transmits point-to-point service data. The physical layer is realized in all node devices, and mainly completes the functions of transparent transmission and signal-to-noise ratio measurement. The transparent transmission is used for transmitting a control subframe and a data subframe, the control subframe fixedly uses convolution (1/2) plus pi/4DQPSK and spread spectrum modulation, and a receiving end completes the function of measuring the signal-to-noise ratio.
And the wireless narrowband ad hoc network receiving end receives the data and transmits the data to the paired handheld intelligent terminal through Bluetooth. The method comprises the steps that APP on a handheld intelligent terminal periodically receives data of a wind field of a snowing project through connection of Bluetooth equipment, the received racetrack wind data are analyzed and verified according to a Bluetooth data protocol, wind speed and wind direction data of positions where 3-15 wind speed sensors are located are obtained, and the wind speed, the wind direction, the wind index and comprehensive wind index data of the positions where the wind speed sensors are located, which are obtained through data processing and calculation, are stored in a file mode and a database mode and displayed on the intelligent terminal.
As shown in fig. 3 and 4, the present invention is described in detail by laying wind measuring systems in two fields in winter and season:
1) And customizing a track wind measuring scheme according to the field characteristics and the team requirements. Aiming at two training fields in winter, 5m and 35m from a shooting area of an athlete are determined according to years of training experiences of a coach, and 0.25m from the ground of the shooting area is the position with the largest influence on the shooting performance of the athlete. Finally, the wind speed sensors are arranged at 5 key positions and are numbered as I, II, III, IV and V.
2) And connecting the 5 wind speed sensors to a wireless narrowband ad hoc network acquisition end by using a connecting cable.
3) And switching on the acquisition end of the wireless narrowband ad hoc network to a power supply.
4) Use the cell-phone APP of customization, connect wireless narrowband ad hoc network through the bluetooth and gather the end and set up the parameter: the working frequency is set to 435MHz, the number of the switched-on wind speed sensors is set to 5, and the serial numbers of the wind speed sensors are set to one, two, three, four and five. If the signal lamp of the acquisition end of the wireless narrowband ad hoc network normally flashes, the acquisition end of the wireless narrowband ad hoc network is proved to be capable of normally acquiring and distributing data.
5) And opening a power switch at a receiving end of the wireless narrowband ad hoc network, and setting the working frequency of the wireless narrowband ad hoc network to be 435MHz through the APP and the Bluetooth of the mobile phone. If the signal lamp of the receiving end of the wireless narrowband ad hoc network flashes normally, the wireless narrowband ad hoc network can receive data normally.
6) Opening two items of a mobile phone in winter to customize an APP, connecting a receiving end of the wireless narrowband ad hoc network through Bluetooth, and if wind field data are displayed normally, indicating that the whole system works normally. The coach can select different visualization means according to the needs: the conventional numerical display and the wind field rendering chart shown in fig. 5 are convenient for athletes to correct guns, and form finer body feeling for different wind speed conditions. The data synchronization background is stored as txt files, and a coach can analyze training results of athletes according to background records and conduct targeted guidance in the links of gun correction, adjustment in shooting, and the like.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A competition field wind measuring command system based on a narrow-band wireless ad hoc network is characterized in that: the system comprises a multipoint high-precision wind measuring system, wherein the multipoint high-precision wind measuring system comprises a wind speed sensor, a wireless narrowband ad hoc network acquisition end, a wireless narrowband ad hoc network receiving end and an intelligent terminal; the wind speed sensor is connected with the wireless narrowband ad hoc network acquisition end through a connecting cable, and the wind speed sensor acquires data and then directly transmits the data to the wireless narrowband ad hoc network acquisition end through a connecting line; the data collected by the collection end of the wireless narrowband ad hoc network is sent to the receiving end of the wireless narrowband ad hoc network through the wireless ad hoc network, then is transmitted to the intelligent terminal through Bluetooth, and is visually displayed by using the customized APP of the intelligent terminal and is recorded in the background; the wind speed sensor acquires second-level wind speed, wind direction, air temperature, relative humidity and air pressure data, and describes the super-fine time scale of the wind field of the on-snow event competition field, so that a coach and a sportsman can acquire and analyze the wind speed and the wind direction of the competition field in real time, the training efficiency and the competition result are improved, and the injury risk of the sportsman is reduced.
2. The competition field anemometry command system based on the narrowband wireless ad hoc network according to claim 1, characterized in that: the intelligent terminal is a Pad, a mobile phone or a wristwatch.
3. The competition field anemometry command system based on the narrowband wireless ad hoc network as claimed in claim 1, wherein: the wind speed sensor is an ultrasonic wind speed sensor; when the wind speed sensor is erected, the ground is supported and fixed by using the low-temperature-resistant and high-strength upright column pipe.
4. The competition field anemometry command system based on the narrowband wireless ad hoc network as claimed in claim 1, wherein: the power supply and the data line of the wind speed sensor share one cable, 4 lines are contained in the cable, and the cable comprises 2 power supply lines and 2 RS485 data lines; the whole equipment box at the acquisition end of the wireless narrowband ad hoc network is supplied with power by 24V direct current, and the 24V direct current is subjected to anti-surge treatment and then is connected with each wind speed sensor to supply power to the wind speed sensors; and after the RS485 data line is used for connecting all the wind speed sensors in series, the wind speed sensors are connected to a wireless narrowband ad hoc network collector in a collection box to provide the wind speed and wind direction service data for the collection box.
5. The competition field anemometry command system based on the narrowband wireless ad hoc network as claimed in claim 1, wherein: each wind speed sensor is provided with a different ID number, when a wireless narrowband ad hoc network acquisition end acquires data of one wind speed sensor, a data transmission instruction is issued first, wherein the instruction comprises the ID number, all the wind speed sensors receive the instruction at the same time, each wind speed sensor checks whether the ID number in the instruction is consistent with the ID number of the wind speed sensor, and if not, the wind speed sensors ignore the ID number and do no processing; and otherwise, returning the data of the wind speed sensor to the acquisition end of the wireless narrowband ad hoc network according to the information in the command.
6. The competition field anemometry command system based on the narrowband wireless ad hoc network as claimed in claim 1, wherein: the data acquired by the acquisition end of the wireless narrowband ad hoc network is distributed to each receiving end of the wireless narrowband ad hoc network through the wireless narrowband ad hoc network; the wireless narrowband ad hoc network forms a wireless narrowband ad hoc network information transmission system through a physical layer, a network layer and a service layer, and end-to-end data transmission is completed by providing data transmission, channel access and routing functions; the service layer completes the data transmission function; the network layer is realized in all node equipment, and node access, frequency and time slot scheduling, interference avoidance, packet loss rate statistics, routing and dormancy functions are completed; the physical layer finally forms a control subframe and a data subframe; the control subframe is used for sending network access control information, network configuration information and scheduling information, and the data subframe is used for sending service data.
7. The competition field anemometry command system based on the narrowband wireless ad hoc network according to claim 1, characterized in that: the wireless narrowband ad hoc network receiving end receives the data and then transmits the data to the paired handheld intelligent terminal through Bluetooth; the APP on the handheld intelligent terminal periodically receives data of a snow project wind field by connecting Bluetooth equipment, analyzes and verifies the received racetrack wind data according to a Bluetooth data protocol, obtains wind speed and wind direction data of positions of 3-15 wind speed sensors, converts the wind measurement data into comprehensive wind action index, wind stability, shooting impact point and next round of gun calibration parameter data which influence a match, and stores the data in a file mode and a database mode and displays the data on the intelligent terminal.
8. The method for commanding the competition field anemometry command system based on the narrowband wireless ad hoc network according to one of the claims 1 to 7, characterized by comprising the following steps:
step 1) customizing a track wind measuring scheme according to site characteristics and team requirements and arranging wind speed sensors at a plurality of positions;
step 2) connecting a plurality of wind speed sensors to a wireless narrowband ad hoc network acquisition end by using a connecting cable;
step 3) connecting the acquisition end of the wireless narrowband ad hoc network with a power supply;
step 4) using a customized intelligent terminal, connecting a wireless narrowband ad hoc network acquisition end through Bluetooth, and setting working frequency, the number of wind speed sensors and the serial number; if the signal lamp of the acquisition end of the wireless narrowband ad hoc network normally flickers, the acquisition end of the wireless narrowband ad hoc network normally acquires and distributes data;
step 5) turning on a power switch at a receiving end of the wireless narrowband ad hoc network, and setting working frequency through the intelligent terminal and the Bluetooth;
step 6), opening an APP of the customized intelligent terminal, connecting a receiving end of the wireless narrowband ad hoc network through Bluetooth, and if the wind field data is displayed normally, indicating normal work; selecting conventional numerical display and visual display of a wind field rendering map; the data sync is stored in the background as a txt file.
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| CN105813099A (en) * | 2016-04-20 | 2016-07-27 | 西安电子科技大学 | Outdoor wireless communication system based on LoRa ad-hoc network |
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