JP4066755B2 - Wireless communication data processing apparatus and wireless communication system selection method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wireless communication data processing apparatus and a wireless communication system selection method, and more particularly, to a wireless communication data processing apparatus capable of transmitting and receiving data by a plurality of wireless communication systems, in order to perform efficient and suitable data processing. The present invention relates to a wireless communication data processing device to be selected and a wireless communication system selection method.
[0002]
[Prior art]
Conventionally, transmission via a wired network cable has been the mainstream as a data transfer method. With the progress of mobile information processing terminal devices and the lower prices of devices, data transfer by wireless communication methods has also been widely performed.
[0003]
Wireless communication systems installed in information processing terminal devices such as PCs have so far been limited to wireless LANs (IEEE802.11 and IEEE802.11b) using the 2.4 GHz band or infrared communication.
[0004]
However, in recent years, new communication standards have been established and are becoming widespread. Further, in order to perform higher-speed communication in the future, a wireless communication method using a radio wave in a high frequency band such as a quasi-millimeter wave band is being studied. In addition, it is becoming common for a single terminal to be equipped with a plurality of wireless communication functions.
[0005]
As described above, when a single terminal is equipped with a plurality of communication methods, it is necessary for the user to select which wireless communication method to select, based on some criteria at the time of data transmission. The user is required to have a certain level of expertise regarding which method to select.
[0006]
In general, it may be preferable to select a wireless access method that can transfer data faster than theoretically as a communication standard, but when actually communicating, the communication distance between devices and the surrounding environment, Such a selection is not necessarily appropriate because the radio wave propagation state changes every moment due to various factors such as the antenna positional relationship, the used frequency (channel), and unwanted radio interference. Especially in indoor wireless communication, there are many uncertainties such as multipath and interference with other wireless access. Judgment based solely on the theoretical transmission rate is not possible when assuming changes in various situations. It is enough.
[0007]
As another parameter that affects data transfer efficiency, a simultaneous access request from a plurality of terminal devices is raised. When a data communication request is made from a certain client terminal device, the wireless communication data processing device is already accessing some other client terminal device and traffic is congested. Although it is a possible communication standard, the final data processing time may become long.
[0008]
For example, in a composite wireless terminal device such as PDC + PHS, a PDC system with a wide communication area is used for voice communication, and a PHS system capable of high-speed transmission for data communication is automatically selected depending on the type of data. A method of switching to is proposed. In addition to this, prior to data transmission, multiple wireless communications can be performed based on the conditions of radio wave propagation between devices that perform data communication on the transmission side, transmission data attributes (capacity, data type, etc.), or availability of the channel. A method for selecting an optimal communication path from the method, frequency, and the like has been proposed.
[0009]
[Problems to be solved by the invention]
However, in such a system, although it is possible to select an optimal communication path based on the wireless communication status between the two parties, consideration is given to a device that receives simultaneous access processing from a plurality of client terminals. Absent.
[0010]
In addition, in the case of a device that receives simultaneous access processing from multiple client terminals, if the access status on the opposite device side cannot be confirmed, it is predicted how much the actual data transfer rate will be when performing new data communication Is difficult.
[0011]
In general, if the radio wave propagation is good, the data transfer rate per hour is improved (the modulation method suitable for high-speed data transfer can be used), so the data transfer time can be shortened, but the traffic situation on the opposite device side is congested In such a case, the access time with each terminal is limited accordingly, so that the overall throughput is lowered.
[0012]
In addition, in the method of judging the communication environment between devices that perform wireless communication on the transmitter side, the attributes of transmission data, and the availability of channels, the wireless data transfer time can be predicted under specific conditions. The total processing time until the predetermined processing procedure is finally completed on the data processing device side cannot be predicted.
[0013]
Therefore, the present invention has been made to solve such problems, and it is possible to select an optimum data transfer method for a wireless communication data processing apparatus capable of transferring data by a plurality of wireless communication methods. An object of the present invention is to provide a wireless communication data processing device and a wireless communication method selection method.
[0014]
In order to achieve the above object, the invention of claim 1 includes a wireless communication means capable of communication by at least two wireless communication methods, and a wireless communication method by which the terminal can communicate when a connection request is received from the terminal. In the wireless communication system with the terminal that has received the connection request when the wireless communication system detecting unit detects that the terminal can communicate with the terminal using at least two wireless communication systems A communication status detection means for detecting a communication status, an access status detection means for detecting an access status of a wireless communication system that is already communicating, a communication status detected by the communication status detection means, and an access status detection means A storage means for storing the detected access status; and a predicted communication status according to the wireless communication method based on the communication status and the access status stored in the storage means. Comprising a prediction means for predicting, and notifies the estimated communication situation predicted by the prediction unit to the terminal.
[0015]
The invention according to claim 2 is the invention according to claim 1, wherein the predicting means includes a data communication predicted time calculating means for calculating a predicted communication time required for communication with the terminal by the wireless communication method. It is characterized by.
[0016]
The invention according to claim 3 is the invention according to claim 1, wherein the predicting means includes data processing time calculating means for calculating a data processing time required to end processing of data transmitted from the terminal. It is characterized by doing.
[0017]
According to a fourth aspect of the present invention, in the first aspect of the invention, when receiving the data content and the attribute information of the terminal from the terminal, the predicted communication status predicted by the prediction means, the content of the data, and Based on the attribute information, communication is performed preferentially to a specific terminal.
[0018]
According to a fifth aspect of the present invention, in the first aspect of the invention, the communication status detecting means measures an electric field strength, a data error rate, and a data transfer rate, and the measured electric field strength, data error rate, and data transfer rate. Based on the above, the communication status is detected.
[0019]
The invention according to claim 6 is the invention according to claim 1, wherein the communication status detection means and the access status detection means periodically detect the communication status and the access status, and detect the detected communication status and access. The situation is stored in the storage means.
[0020]
The invention of claim 7 is characterized in that, in the invention of claim 1, when communicating with the terminal, an instruction for improving the transfer rate of the communication is transmitted.
[0021]
In order to achieve the above object, the invention of claim 8 is a wireless communication system selection method performed by a terminal and a wireless communication data processing apparatus capable of performing communication using at least two wireless communication systems, wherein the wireless communication data processing apparatus includes: When receiving a connection request from the terminal, the terminal detects the wireless communication method with which the terminal can communicate, and detects that the terminal can communicate with the terminal by at least two wireless communication methods. And detecting the access status of the wireless communication system that is already communicating, and based on the detected communication status and access status, the future communication status for each wireless communication method is detected. Predicting the predicted communication status, notifying the predicted communication status to the terminal, the terminal determines a wireless communication method to be used based on the predicted status To.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a wireless communication data processing apparatus and a wireless communication system selection method according to the present invention will be described below in detail with reference to the accompanying drawings.
[0029]
FIG. 1 is a diagram showing a first embodiment of a communication environment configured by a wireless communication data processing apparatus 1 according to the present invention.
[0030]
As shown in FIG. 1, a wireless communication data processing apparatus 1 capable of performing data communication using a plurality of wireless communication methods (wireless communication method 1 and wireless communication method 2 in FIG. 1) is based on wireless communication method 1. Data communication is performed with terminal A201, terminal B202, and terminal C203, and data communication is performed with terminal D204 and terminal E205 by wireless communication method 2. The wireless communication data processing device 1 can also perform data communication via wired communication, and performs data communication with the terminal F206 via wired communication.
[0031]
Here, when the wireless communication data processing device 1 receives a data communication request from the new terminal 3 capable of performing data communication by the wireless communication method 1 and the wireless communication method 2, the wireless communication data processing device 1 performs the request. The process will be described in detail.
[0032]
FIG. 2 is a block diagram illustrating an example of a schematic configuration of the wireless communication unit 4 in the wireless communication data processing device 1.
[0033]
As shown in FIG. 2, the wireless communication unit 4 in the wireless communication data processing apparatus 1 includes an antenna A51 that receives radio waves by the wireless communication method 1, an antenna A51 that receives radio waves by the wireless communication method 1, and an antenna that receives radio waves by the wireless communication method 2. B52 and wireless communication method 2 communication unit 7, communication state analysis unit 8 that analyzes the communication state of wireless communication method 1 and wireless communication method 2, communication state recording unit 9 that records the communication state analyzed by communication state analysis unit 8, Based on the communication status recorded in the communication status recording unit 9, the communication status prediction unit 10 is configured to calculate the data transfer time in the wireless communication method 1 and the wireless communication method 2 when performing data communication with the new terminal 3. Yes.
[0034]
Here, the wireless communication unit 4 uses the wireless communication method 1 communication unit 6 and the wireless communication method 2 communication unit 7 to calculate the data transfer time by the wireless communication method 1 and the wireless communication method 2 calculated by the communication state prediction unit 10. Transmit to the new terminal 3.
[0035]
The radio waves received by the wireless communication method 1 communication unit and the wireless communication method 2 communication unit are sent to a data processing unit (not shown).
[0036]
Next, a processing procedure performed by the wireless communication data processing device 1 when the wireless communication data processing device 1 receives a data communication request from the new terminal 3 capable of performing data communication by a plurality of wireless communication methods is illustrated. This will be described with reference to the flowchart shown in FIG.
[0037]
When the wireless communication data processing apparatus receives a data communication request from the new terminal (step S301), a wireless communication method capable of data communication with the new terminal is detected (step S302), and all wireless devices capable of data communication with the new terminal are detected. The communication status of the communication method is confirmed (step S303), the confirmed communication status is recorded (step S304), and the access status between the current wireless communication data processing device and the terminal performing data communication is confirmed (step S305). The confirmed access status is recorded (step S306), and based on the recorded communication status in each wireless communication method and the access status with each communicating terminal, the data transfer time with the new terminal in each wireless communication method is calculated. (Step S307), and notifies the new terminal of the calculated data transfer time for each wireless communication method (Step S307). 08), the new terminal determines the wireless communication system that performs wireless communication data processing device and the data communication on the basis of the data transfer time by the wireless communication method is notified (step S309), and terminates the processing procedure.
[0038]
FIG. 4 is a diagram for specifically explaining a processing procedure performed by the wireless communication data processing device 1 and the new terminal 3 when determining a wireless communication method for performing data communication. The processing procedure will be described with reference to the configuration example of the communication environment shown in FIG.
[0039]
In the communication environment shown in FIG. 1, the wireless communication data processing device 1 performs data communication with the terminals A201, B202, and C203 by the wireless communication method 1, performs data communication with the terminal D204 and the terminal E205 by the wireless communication method 2, Data communication is performed with the terminal F206 via wired communication. Here, the wireless communication data processing device 1 receives a data communication request from a new terminal 3 capable of performing data communication by the wireless communication method 1 and the wireless communication method 2. The wireless communication data processing device 1 that has received the data communication request detects a wireless communication method capable of data communication with the new terminal 3, and the wireless communication method 1 and the wireless communication method 2 are capable of data communication. Is detected, the communication status of the wireless communication method 1 is checked (step S401), and the communication status of the wireless communication method 2 is checked (step S402).
[0040]
Here, as a method of confirming the communication status, a method of measuring electric field strength, a method of measuring a data transfer error rate, or a method of measuring a data transfer rate can be used.
[0041]
Here, the method of measuring the electric field strength is, for example, calculating from the output signal level of the RF receiving circuit.
[0042]
As a method for measuring the data transfer error rate, for example, standard test data that is common between the terminals that perform communication is prepared, and the number of error bits when the data is transmitted / received or the error data is corrected for error correction. The error occurrence rate is calculated from the number of transmission requests.
[0043]
The method for measuring the data transfer rate is to prepare standard test data in the same way as the method for measuring the data transfer error rate, send and receive the data at a certain point, and calculate from the transfer time. is there.
[0044]
In addition, the above measurement may be configured to be performed only once, but it is possible to improve the reliability of the judgment criteria by saving it as a log while periodically measuring it and making a judgment with reference to the saved log. is there. Note that a plurality of the above measurements may be performed simultaneously.
[0045]
And the result of said measurement is memorize | stored in the communication condition recording part 9. FIG.
[0046]
Next, the wireless communication data processing apparatus 1 checks the access status of the terminal A 201, the terminal B 202, and the terminal C 203 that are already performing data communication using the wireless communication method 1 (step S403), and performs data communication using the wireless communication method 2. The access status of the terminal D204 and the terminal E205 that are performing the check is confirmed (step S404). Specifically, the number of terminals accessing at the time when a communication request is made, the data capacity transmitted / received to / from each terminal, the communication status with each terminal (for example, the electric field strength and transfer as described above) Future traffic status changes are predicted from the error rate or data transfer rate.
[0047]
Then, the access status of the terminals A to E performing data communication is also recorded in the communication status recording unit 9.
[0048]
Finally, the wireless communication system with the new terminal 3 that has made a data communication request from the confirmed communication state and the prediction result of the future traffic state calculated from the access state of the terminals A to E that are already communicating The data transfer time “t1” according to 1 is calculated (step S405) and the data transfer time “t2” according to the wireless communication method 2 is calculated (step S406).
[0049]
The wireless communication data processing device 1 notifies the new terminal 3 of the data transfer time “t1” and the data transfer time “t2” (step S407), and the new terminal 3 notifies the notified data transfer time “t1” and the data The transfer time “t2” is compared (step S408).
[0050]
Here, if “t1 <t2”, the wireless communication method 1 is determined (step S409), and data transfer is started in the wireless communication method 1 (step S410).
[0051]
If “t1> t2”, the wireless communication method 2 is determined (step S411), and data transfer is started in the wireless communication method 1 (step S412).
[0052]
In addition, the wireless communication data processing device 1 notifies the new terminal 3 that has made a data communication request of the wireless communication method in which data transfer is most efficiently performed. At this time, the new terminal 3 can select the wireless communication method according to the circumstances of the new terminal 3 by enabling the setting of what the wireless communication method is to be selected as a criterion.
[0053]
For example, when power consumption is given the highest priority, the new terminal 3 receives data related to the data transfer time received from the wireless communication data processing apparatus 1 and consumes the data communication based on the result and the power consumption per unit time of the new terminal 3. Calculate the power consumption. From the prediction result, it is possible to start communication by selecting a wireless communication system that is most efficiently performed from the viewpoint of power consumption efficiency. In addition, it is possible to suppress wasteful energy consumption by switching to a standby mode or an energy saving mode such as power OFF for a wireless communication method that is not used.
[0054]
FIG. 5 is a diagram showing a second embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
[0055]
As shown in FIG. 5, when data is to be printed from the new terminal 3 to a peripheral printer, the printer X111 or the printer Y112 is normally designated to issue a print instruction. However, when the printer X111 and the printer Y112 are printers that can be connected by a plurality of wireless communication systems, the new terminal 3 can be selected from the printer X111 or the printer Y112 as an output destination. As one of the selection criteria at that time, a printer capable of performing the most efficient data transfer by predicting the data transfer efficiency as described above for a printer that can be connected by a plurality of wireless communication methods. By selecting, the productivity of business can be improved.
[0056]
Further, in the case of a printer, in addition to the data transfer efficiency, the job processing time (for example, data development time, output time, etc.) is predicted from the content of the job request from the terminal and the performance of each of the printer X111 and printer Y112. The convenience is improved by notifying the new terminal of the time required to complete the printing together with the predicted result and the above-described data transfer time.
[0057]
Next, a processing procedure performed by the printer when the printer receives a print request from the new terminal 3 capable of performing data communication by a plurality of wireless communication systems will be described with reference to a flowchart shown in FIG.
[0058]
When the printer receives a print request from the new terminal (step S601), the wireless communication method capable of communicating with the new terminal is detected (step S602), and the communication statuses of all wireless communication methods communicable with the new terminal are confirmed ( Step S603), recording the confirmed communication status (Step S604), confirming the access status with the terminal currently communicating with the printer (Step S605), recording the confirmed access status (Step S606), and recording Based on the communication status in each wireless communication method and the access status with each communicating terminal, the print processing time of all communicating terminals is calculated (step S607), and the recorded communication status in each wireless communication method is calculated. Based on the access status with each terminal during communication, the data transfer time with the new terminal by each wireless communication method is calculated (step by step). Flop S608), calculates the total print process time by the wireless communication system (step S609), the total print process time by the radio communication system calculated notifies the new terminal (step S610), and terminates the processing procedure.
[0059]
FIG. 7 is a diagram for specifically explaining a processing procedure performed by the printer and the new terminal 3 when the new terminal 3 determines a printer that can transfer data most efficiently. The processing procedure will be described with reference to the configuration example of the communication environment shown in FIG.
[0060]
In the communication environment shown in FIG. 5, the printer X111 performs data communication with the terminal G207 by the wireless communication method 1, performs data communication with the terminal H208 by the wireless communication method 2, and starts the printing process when the data communication is completed. The printer Y112 performs data communication with the terminal I209 by the wireless communication method 1, performs data communication with the terminal J210 by the wireless communication method 2, and starts the printing process when the data communication is completed. Here, the new terminal 3 capable of performing data communication by the wireless communication method 1 and the wireless communication method 2 sends a print request to the printer X111 and the printer Y112.
[0061]
First, the printer X111 that has received the print request detects a wireless communication method capable of data communication with the new terminal 3, and detects that wireless communication method 1 and wireless communication method 2 are capable of data communication. The communication status of the communication method 1 is confirmed (step S701), the communication status of the wireless communication method 2 is confirmed (step S702), and the confirmed communication status of the wireless communication method 1 and the wireless communication method 2 is confirmed. Is stored in the communication status recording unit 9.
[0062]
Next, the printer X111 confirms the access status of the terminal G207 that is already performing data communication by the wireless communication method 1 (step S703), and confirms the access status of the terminal H208 that is performing data communication by the wireless communication method 2. In step S704, the access status of the terminals G and H that are performing data communication is also recorded in the communication status recording unit 9.
[0063]
Next, the print processing time “t3” of the terminals G and H is calculated from the confirmed communication status of the wireless communication method 1 and the wireless communication method 2 and the access status of the terminals G and H that are already communicating ( At the same time, the data transfer time “t1X” of the wireless communication method 1 with the new terminal 3 that has made the print request is calculated (step S706), and the data transfer time “t2X” of the wireless communication method 2 is calculated (step S706). Step S707).
[0064]
Next, a total print processing time “t1X + t3, t2X + t3” obtained by totaling the calculated print processing time “t3”, the data transfer time “t1X” according to the wireless communication method 1, and the data transfer time “t2X” according to the wireless communication method 2 is obtained. Calculate (step S708).
[0065]
Further, in the printer Y112 that has received the print request, similarly to the printer X111, the print processing time “t4” of the terminals I and J, the data transfer time “t1Y” by the wireless communication method 1 with the new terminal, and the wireless communication method 2 The data transfer time “t2Y” is calculated, and the total print processing time “t1Y + t4, t2Y + t4” is calculated (step S709).
[0066]
The printer X111 notifies the new terminal 3 of the total print processing time “t1X + t3, t2X + t3”, and the printer Y112 notifies the new terminal 3 of the total print processing time “t1Y + t4, t2Y + t4” (step S710). The new terminal 3 determines the minimum value from the notified total print processing time “t1X + t3, t2X + t3” of the printer X111 and the total print processing time “t1Y + t4, t2Y + t4” of the printer Y112 (step S711).
[0067]
If “t1X + t3” is the minimum value, it is determined to communicate with the printer X111 using the wireless communication method 1 (step S712), and data transfer to the printer X111 using the wireless communication method 1 is started (step S713).
[0068]
If “t2X + t3” is the minimum value, it is determined to communicate with the printer X111 by the wireless communication method 2 (step S714), and data transfer to the printer X111 by the wireless communication method 2 is started (step S715).
[0069]
If “t1Y + t4” is the minimum value, it is determined to communicate with the printer Y112 by the wireless communication method 1 (step S716), and data transfer to the printer Y112 by the wireless communication method 1 is started (step S717).
[0070]
If “t2Y + t4” is the minimum value, it is determined to communicate with the printer Y112 by the wireless communication method 2 (step S718), and data transfer to the printer Y112 by the wireless communication method 2 is started (step S719).
[0071]
Also, the printer can notify the new terminal 3 of a situation other than the total print processing time according to the request of the new terminal 3, and the new terminal 3 determines a wireless communication method suitable for the circumstances of the own device. It can be performed.
[0072]
FIG. 8 is a diagram showing a third embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
[0073]
As shown in FIG. 8, the wireless communication data processing device 1 performs data communication with the terminal K211 and the terminal L212, and the wireless communication data processing device 1 connects the terminal K211 and the terminal L212 to the user interface unit 121 of the wireless communication data processing device. Communication status of the wireless communication system with the wireless communication data processing device 1, progress status of job processing (in FIG. 8, 50% processing in data communication with the terminal K in the 802.11a wireless LAN, 802.11b 30% processing) is displayed during data communication with the terminal L in the wireless LAN of the system.
[0074]
Here, at the start of communication, the terminal K211 transmits a file size to be output in advance, information necessary for user interface output of the terminal K211 (for example, screen size, display code information). The wireless communication data processing apparatus 1 transmits the processing time predicted based on the received information of the terminal K211 or the performance (remaining time etc.) status including the result of calculating the data error rate during communication to the terminal K211. The terminal K211 displays the received performance status (in FIG. 8, the terminal K selects data communication in the 802.11a wireless LAN and currently processes 50%) in the user interface unit 122 of the terminal K.
[0075]
Similarly to the terminal K211, the terminal L212 transmits the file size desired to be output in advance, information necessary for user interface output of the terminal L212, and the like to the user interface unit 123 of the terminal L (see FIG. 8). The terminal L can select the data communication in the wireless LAN of the 802.11b system, and display the current 30% processing).
[0076]
Also, the timing for transmitting the performance status to the terminal may be at a constant sampling or when the performance status changes, and is not particularly limited.
[0077]
Here, a test radio wave or the like is transmitted by the wireless communication method selected from the terminal at the start of communication, and the wireless communication data processing device 1 displays the communication status of the wireless communication method on the user interface unit 121 of the wireless communication data processing device. . Alternatively, test data is transmitted from the terminal, and a data transmission performance prediction result is displayed on the user interface unit 121 of the wireless communication data processing device based on the data error rate calculated by the wireless communication data processing device 1. Then, the user sees the result and determines whether to continue the selected wireless communication method.
[0078]
FIG. 9 is a diagram showing a fourth embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
[0079]
As shown in FIG. 9, the wireless communication data processing device 1 performs data communication with the terminal M213, and monitors the current communication status from the electric field strength, data error rate, or data rate of the wireless communication method in communication. To do. When the wireless communication data processing apparatus 1 confirms the electric field strength, data error rate, and H data rate that are equal to or lower than a preset reference value over a predetermined time, the wireless communication data processing apparatus 1 increases the transfer rate to the terminal M213. For this purpose is notified to the terminal M213.
[0080]
Specifically, when the electric field strength is below the reference value, the terminal M213 is instructed to move the current terminal position or change the antenna angle. For example, in FIG. 9, an instruction “Please change the angle of the terminal” is displayed on the user interface unit 124 of the terminal M.
[0081]
As a result, it is possible to suppress a decrease in the transfer rate by making the position of the terminal M213 correspond to the instruction content. As for the notification method, in addition to displaying text information or animation on the user interface unit of the terminal, a terminal having a voice reproduction function may be notified as voice information.
[0082]
In FIG. 9, when the terminal M214 is a portable information terminal (for example, PDA or PDC) that assumes battery driving, before the terminal M214 starts data communication with the wireless communication data processing apparatus 1. The data contents and the attribute information of the terminal M213 (for example, the device type and the remaining battery level) are transmitted to the wireless communication data processing device 1 in advance. The wireless communication data processing apparatus 1 predicts the time required for processing based on the data content and the current data processing status, and notifies the terminal M213 of an alarm in advance when processing over a certain time is required. Reduce battery consumption and battery consumption.
[0083]
Further, when there is a data communication request from a plurality of portable information terminals, the battery consumption load on the terminal can be reduced by preferentially processing data with a device having a small remaining battery level.
[0084]
【The invention's effect】
As described above, according to the present invention, the most efficient data communication between a wireless communication data processing apparatus having communication means using a plurality of wireless communication methods and a terminal having communication means using a plurality of wireless communication methods is the most efficient. There is an effect that it is possible to select a wireless communication method capable of data transfer.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of a communication environment configured by a wireless communication data processing apparatus 1 according to the present invention.
FIG. 2 is a block diagram showing an example of a schematic configuration of a wireless communication unit 4 in the wireless communication data processing device 1.
FIG. 3 shows a processing procedure performed by the wireless communication data processing apparatus 1 when the wireless communication data processing apparatus 1 receives a data communication request from a new terminal 3 capable of performing data communication by a plurality of wireless communication systems. It is a flowchart to show.
FIG. 4 is a diagram for specifically explaining a processing procedure performed by the wireless communication data processing apparatus 1 and the new terminal 3 when determining a wireless communication method for performing data communication.
FIG. 5 is a diagram showing a second embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
FIG. 6 is a flowchart illustrating a processing procedure performed by a printer when the printer receives a print request from a new terminal 3 capable of performing data communication using a plurality of wireless communication methods.
FIG. 7 is a diagram specifically illustrating a processing procedure performed by the printer and the new terminal 3 when the new terminal 3 determines a printer that can perform data transfer most efficiently.
FIG. 8 is a diagram showing a third embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
FIG. 9 is a diagram showing a fourth embodiment of the communication environment configured by the wireless communication data processing apparatus 1 according to the present invention.
[Explanation of symbols]
1 Wireless communication data processing device
3 New terminals
4 wireless communication units
6 Wireless communication system 1 communication part
7 Wireless communication system 2 communication part
8 Communication Status Analysis Department
9 Communication status recording section
10 Communication status prediction unit
51 Antenna A
52 Antenna B
111 Printer X
112 Printer Y
121 User interface unit of wireless communication data processing apparatus
122 User interface part of terminal K
123 User interface part of terminal L
124 User interface portion of terminal M
201 Terminal A
202 Terminal B
203 Terminal C
204 Terminal D
205 Terminal E
206 Terminal F
207 Terminal G
208 Terminal H
209 Terminal I
210 Terminal J
211 Terminal K
212 Terminal L
213 Terminal M

Claims (8)

Wireless communication means capable of communication by at least two wireless communication methods;
A wireless communication method detecting means for detecting a wireless communication method with which the terminal can communicate when receiving a connection request from the terminal;
Communication status detection means for detecting a communication status in the wireless communication system with the terminal that has received the connection request when the wireless communication system detection means detects that the terminal can communicate with at least two wireless communication systems. When,
An access status detection means for detecting an access status of a wireless communication method that is already communicating;
Storage means for storing the communication status detected by the communication status detection means and the access status detected by the access status detection means;
Predicting means for predicting a predicted communication status by the wireless communication method based on the communication status and access status stored in the storage means,
The wireless communication data processing device, which notifies the terminal of the predicted communication status predicted by the prediction means. The prediction means includes
The wireless communication data processing apparatus according to claim 1, further comprising: a data communication prediction time calculation unit that calculates a communication prediction time necessary for communication with the terminal using the wireless communication method. The prediction means includes
The wireless communication data processing apparatus according to claim 1, further comprising: a data processing time calculation unit that calculates a data processing time required to end processing of data transmitted from the terminal. When receiving data content and attribute information of the terminal from the terminal,
The wireless communication data processing device according to claim 1, wherein communication is performed with priority to a specific terminal based on the predicted communication status predicted by the prediction means, the content of the data, and the attribute information. . The communication status detection means includes
Measure field strength, data error rate and data transfer rate,
The wireless communication data processing device according to claim 1, wherein the communication state is detected based on the measured electric field strength, data error rate, and data transfer rate. The communication status detection means and the access status detection means are:
Periodically detect the communication status and the access status,
The wireless communication data processing apparatus according to claim 1, wherein the detected communication state and access state are stored in the storage unit. The wireless communication data processing apparatus according to claim 1, wherein an instruction for improving a transfer rate of the communication is transmitted during communication with the terminal. In a wireless communication method selection method performed by a wireless communication data processing apparatus and a terminal capable of communication using at least two wireless communication methods,
The wireless communication data processing device includes:
When receiving a connection request from the terminal, it detects a wireless communication method with which the terminal can communicate,
When it is detected that the terminal can communicate with at least two wireless communication schemes, the communication status of the wireless communication scheme with the terminal that has received the connection request is detected, and the wireless communication scheme that is already communicating is detected. Detecting the access status, based on the detected communication status and access status, predicting the predicted future communication status for each wireless communication method, and notifying the terminal of the predicted predicted communication status,
The terminal
A wireless communication method selection method, wherein a wireless communication method to be used is determined based on the predicted state.

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