JP5112458B2 - Wireless communication terminal and control program thereof - Google Patents

Description

  The present invention relates to a wireless communication terminal such as a handy terminal used in an ordering system in a restaurant or an inventory system in a logistics industry, and more particularly, a wireless communication terminal having a function of displaying a radio wave state of a radio wave received from a base station, and It relates to the control program.

  2. Description of the Related Art Conventionally, a wireless communication system including a wireless communication terminal that communicates with a base station by wireless communication via radio waves has been applied to an ordering system in restaurants, an inventory system in logistics, and the like. In this type of system, end information such as order information and article information input via a wireless communication terminal is transmitted to the base station, and information using the end information in a host device connected to the base station Processing is being executed.

  The state of the radio wave that mediates communication between the wireless communication terminal and the base station varies depending on the positional relationship between the wireless communication terminal and the base station, the presence or absence of a shielding object, noise generated by surrounding electronic devices, and the like. In order to notify the user of the radio wave state changing in this way, the wireless communication terminal generally has a function of displaying the radio wave state in a plurality of sections. Normally, when the radio wave condition is the worst, “out of service area” is displayed as the radio wave condition, and the user changes the standing position so that the out of service area display is canceled or points the antenna provided to the wireless communication terminal. Take measures such as changing.

  In addition, as a prior art regarding the display of a radio wave state, for example, a radio wave state display system disclosed in Patent Document 1 is known. In this system, a connection device that displays the radio wave state in more detail than the radio wave state display of the mobile phone is provided to accurately determine the direction in which the radio wave is strong.

  In order to display the above-mentioned radio wave status, when a wireless communication terminal receives a beacon periodically transmitted from a base station, a radio signal strength value such as RSSI (Receive Signal Strength Indicator) related to the beacon is detected from the wireless module. Then, it is necessary to execute the procedure of determining the radio wave condition category to which the detected radio wave intensity value belongs and updating the radio wave status display in the determined category. If this series of processing is executed at a high frequency and an accurate radio wave condition that matches the actual situation is displayed, the processing load on the wireless communication terminal becomes significant, and the business program executed on the wireless communication terminal Processing speed is greatly reduced. In view of this, the update process of the radio wave state display is generally performed with a certain waiting time (for example, a few seconds).

  However, there are cases where the radio field intensity value obtained by chance after the elapse of the waiting time is low, and the radio field intensity value of the beacon received immediately before or immediately after is determined to be within the range even if the radio wave state is determined to be out of range. Many. In the conventional method for determining the radio wave condition, even in such a case, the radio wave condition display outside the service area is maintained until the waiting time elapses, so the radio wave condition display does not match the actual radio wave condition. It was. In particular, when the radio wave status is displayed as out of range, the user must interrupt the transmission work to the base station until the radio wave recovers, so work may be delayed and the out of range display may be continued for a long time. Would give the user anxiety.

  The present invention has been made based on the above-described circumstances, and its purpose is to display a radio wave state in accordance with the actual situation on a radio communication terminal that performs radio communication with a base station via radio waves, thereby delaying work. This is to prevent the user from feeling uneasy by not showing the out-of-service display to the user as much as possible.

  In order to solve the above problems, the present invention takes the following measures.

A first aspect of the present invention is a wireless communication means that wirelessly communicates via radio waves with a base station that periodically transmits a beacon, and a radio wave intensity that measures a radio wave intensity value of the beacon received by the wireless communication means. Measured by a value measurement means, a link establishment judgment means for judging whether a communication link with the base station is established based on a beacon received by the wireless communication means, and the radio wave intensity value measurement means Based on at least one of the radio wave intensity value of a plurality of beacons and the determination result of the link establishment determination means for the plurality of beacons, at least whether the radio wave condition with the base station belongs to within or out of range If the result is out of service area, the other is used to determine whether the radio wave condition with at least the base station belongs to service area or out of service area. A wireless communication terminal comprising a wave state determination unit and a display unit that displays a radio wave state determined by the radio wave state determination unit.

A third aspect of the present invention is a radio communication unit that performs radio communication with a base station that periodically transmits a beacon via radio waves, and a radio wave intensity value that measures a radio wave intensity value of a beacon received by the radio communication unit. A control program for a wireless communication terminal , comprising: a measurement unit; and a link establishment determination unit that determines whether a communication link with the base station is established based on a beacon received by the wireless communication unit. The wireless communication terminal has a function of acquiring the radio field intensity value of a plurality of beacons from the radio field intensity value measuring unit, a function of acquiring a determination result for each of a plurality of times of beacons from the link establishment determining unit, and a plurality of acquired times of radio wave strength value of the beacon, and, the multiple based on at least one of the link establishment determination section of the determination result of the beacon at least the base station Signal status determines belongs to the short or out of range, and in which case the result is out of range, the radio wave state of at least the base station using the other to determine whether they fall in a short or out of service features And a control program for realizing a function of displaying the determined radio wave state on the display unit.

  According to the present invention in which such measures are taken, the radio communication terminal that performs radio communication with the base station via radio waves is displayed with a radio wave state that is in accordance with the actual situation to prevent delays in business, and the out-of-service indication is shown to the user as much as possible. It is possible to prevent the user from feeling uneasy.

1 is an overall configuration diagram of an ordering system according to an embodiment of the present invention. The block diagram which shows the principal part structure of the access point used with the same system. The block diagram which shows the principal part structure of the handy terminal used with the system. The figure which shows the relationship between the radio wave state display and radio wave intensity value in the embodiment. The flowchart of the electromagnetic wave state display process in the embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In addition, this embodiment is an example which applied this invention to the ordering system used in restaurants, such as a restaurant.

[System configuration]
First, the overall configuration of the ordering system will be described.
FIG. 1 is an overall configuration diagram of an ordering system in the present embodiment. As shown in the figure, the ordering system includes a plurality of handy terminals 1 owned by a customer clerk, an access point 2 installed on the ceiling of a hall, a kitchen printer 3 installed in a kitchen, and a hall. Customer check printer 4, a POS (Point Of Sales) terminal 5 installed in a checkout counter, and an order station 6 installed in a backyard of a store and controlling the entire ordering system. . The access point 2, kitchen printer 3, customer check printer 4, POS terminal 5, and order station 6 are connected via a LAN (Local Area Network) line 7 provided in the store. The handy terminal 1 and the access point 2 transmit and receive data by wireless communication via radio waves.

The handy terminal 1 is a terminal for inputting orders from customers, and transmits order data and the like to the order station 6 through the access point 2.
The order station 6 stores and manages the order data received from the handy terminal 1 and instructs the kitchen printer 3 and the customer check printer 4 to print the order data, and transmits the order data to be accounted for to the POS terminal 5 at the time of accounting. To do.
The kitchen printer 3 prints a cooking instruction slip for instructing the cook in the kitchen about the ordered menu item in response to the order station 6 having been instructed to print the order data.
When the customer check printer 4 is instructed to print the order data from the order station 6, the customer check printer 4 prints a slip to be delivered to the customer who has placed an order related to the order data.
The POS terminal 5 performs accounting for the customer who has placed the order based on the order data to be transmitted transmitted from the order station 6, and provides information on the completion of the accounting, information on money exchanged with the customer, etc. Send to.

[access point]
Next, the access point 2 will be described.
FIG. 2 is a block diagram showing a main configuration of the access point 2.

  The access point 2 includes a control unit 20 composed of a CPU (Central Processing Unit) or the like. The control unit 20 includes a ROM (Read Only Memory) 21, a RAM (Random Access Memory) 22, a communication interface (I / F) 23, a display controller 24, and a wireless communication interface 25, which include an address bus and a data bus. Connected via line 26. Then, the LAN line 7 is connected to the communication interface 23, the display unit 27 is connected to the display controller 24, the wireless communication unit 28 is connected to the wireless communication interface 25, and the control circuit of the access point 2 is configured.

  The ROM 21 stores fixed data such as a control program necessary for the operation of the access point 2 and a driver for driving each hardware. The RAM 22 forms various working storage areas according to the operation of the access point 2. The communication interface 23 controls communication with the order station 6 performed via the LAN line 7.

  The display unit 27 includes a plurality of LEDs that indicate whether or not the access point 2 is powered on and the communication state. The display controller 24 turns on, turns off, and blinks the LEDs constituting the display unit 27.

  The wireless communication unit 28 performs wireless communication with the handy terminal 1 via the internal antenna 202 and the external antenna 203, and includes a transmission / reception unit 200 and a switching circuit 201. The switching circuit 201 selectively switches the connection destination of the transmission / reception unit 200 between the internal antenna 202 and the external antenna 203. One of the internal antenna 202 and the external antenna 203 connected to the transmission / reception unit 200 by the switching circuit 201 transmits a radio wave corresponding to a signal supplied from the transmission / reception unit 200 to the handy terminal 1 and receives from the handy terminal 1. A signal corresponding to the radio wave is output to the transmission / reception unit 200. The transmission / reception unit 200 outputs a signal obtained by modulating transmission data to the handy terminal 1 to one of the internal antenna 202 or the external antenna 203 connected by the switching circuit 201 and demodulates a signal input from the one antenna. Then, the reception data from the handy terminal 1 is generated. The wireless communication interface 25 controls wireless communication with the handy terminal 1 by the wireless communication unit 28.

  The control unit 20 executes a beacon generation process based on the operation program stored in the ROM 21. In this process, the control unit 20 controls the wireless communication unit 28 via the wireless communication interface 25 and transmits a beacon including the SSID (Service Set Identifier) of the access point 2 within the communication range. In this embodiment, the beacon is transmitted four times at intervals of 100 ms from one of the internal antenna 202 or the external antenna 203 connected to the transmission / reception unit 200, and then the antenna connected to the transmission / reception unit 200 is switched by the switching circuit 201. It is assumed that the process of transmitting the beacon four times at intervals of 100 ms from the antenna after switching is performed.

[handy terminal]
Next, the handy terminal 1 will be described. Note that each of the plurality of handy terminals 1 included in the ordering system has a configuration described below.

  FIG. 3 is a block diagram showing a main configuration of the handy terminal 1. The handy terminal 1 includes a control unit 10 composed of a CPU or the like. A ROM 11, a RAM 12, an input controller 13, a display controller 14, and a wireless communication interface 15 are connected to the control unit 10 via a bus line 16 including an address bus and a data bus. An input unit 17 is connected to the input controller 13, a display unit 18 (display means) is connected to the display controller 14, a wireless communication unit 19 (wireless communication means) is connected to the wireless communication interface 15, and the handy terminal 1 is connected. The control circuit is configured.

  The ROM 11 is a control program necessary for the operation of the handy terminal 1, a driver for driving each hardware, and threshold values R1 to R4 (0 <R1 <R2 <R3 <R4) used in a radio wave state display process to be described later. Is remembered. The RAM 12 forms various working storage areas according to the operation of the handy terminal 1.

  The input unit 17 includes a touch panel provided on the display surface of the display unit 18 and a keyboard having menu selection keys and the like, and accepts operations such as input, cancellation, and confirmation of order data. The input controller 13 takes in an input signal that is output when a touch panel or a keyboard constituting the input unit 17 is operated, and notifies the control unit 10 of the input signal.

  The display unit 18 is, for example, an LCD (Liquid Crystal Display), and selectively displays order data input via the input unit 17, a radio wave state display indicating a radio wave state in wireless communication with the access point 2, and the like. . The display controller 14 controls the display content of the display unit 18 in accordance with a command from the control unit 10.

  The wireless communication unit 19 wirelessly communicates with the access point 2 via the antenna 103, and includes a transmission / reception unit 100, a radio wave intensity value measuring unit 101 (radio wave intensity value measuring unit), and a link establishment determining unit 102 (link establishment). Determination means).

  The antenna 103 transmits a radio wave corresponding to the signal supplied from the transmission / reception unit 100 to the access point 2 and outputs a signal corresponding to the radio wave received from the access point 2 to the transmission / reception unit 100.

  The transmission / reception unit 100 outputs a signal obtained by modulating transmission data to the access point 2 to the antenna 103, and demodulates a signal input from the antenna 103 to generate reception data from the access point 2.

  The radio wave intensity value measuring unit 101 measures the radio wave intensity value R (for example, RSSI value) of the beacon based on a signal output from the antenna 103 when a beacon transmitted from the access point 2 is received.

  The link establishment determination unit 102 determines whether or not a communication link with the access point 2 is established at a timing when the antenna 103 receives a beacon transmitted from the access point 2, and determines that the communication link is established. If it is determined, a connection status value F of “1” is generated, and if it is determined that a communication link is not established, a connection status value F of “0” is generated. As a method for causing the link establishment determination unit 102 to determine whether or not a communication link has been established, various methods including known techniques can be employed. In this embodiment, as an example, a communication link is established when a beacon is normally received from the access point 2 after the communication link between the handy terminal 1 and the access point 2 is established according to a well-known communication link establishment procedure. A bit that cannot be received at all because the access point 2 is down or the handy terminal 1 has significantly deviated from the communicable range, or the data related to the beacon received from the access point 2 cannot be corrected. Control that determines that a communication link has not been established when a beacon is not normally received due to the inclusion of an error is employed.

The control unit 10 realizes the following functions (1) to (3) by executing the operation program stored in the ROM 11.
(1) A selection function for selecting a radio wave intensity value R that satisfies a predetermined condition from the radio wave intensity values R of a plurality of beacons measured by the radio wave intensity value measuring unit 101. In particular, in the present embodiment, three (worst three) radio wave intensity values R are selected in ascending order from the lowest radio wave intensity value R measured for eight beacons.

(2) An average value calculation function for calculating an average value Rave of the radio field intensity values R of a plurality of beacons measured by the radio field intensity value measuring unit 101. In particular, in the present embodiment, the average value Rave of the three radio wave intensity values R selected by the selection function is calculated.
(3) A radio wave state determination function that determines the radio wave state with the access point 2 based on the radio wave intensity values R of a plurality of beacons measured by the radio wave intensity value measurement unit 101. In particular, in the present embodiment, the radio wave state is determined using the average value Rave calculated by the average value calculation function. Further, if the result of determining the radio wave state using the average value Rave is out of the service area, the radio wave state is determined using the connection status value F.

[Radio signal display processing]
Next, the radio wave state display process executed by the handy terminal 1 will be described. In this process, the radio wave state is displayed on the display unit 18 using the radio wave intensity value R when the handy terminal 1 receives a beacon transmitted from the access point 2.

  First, the relationship between the radio wave state display and the radio wave intensity value R will be described with reference to FIG. As shown in the figure, the radio wave state display in the present embodiment is represented by six categories of strongest, strong, medium, weak, weak, and out of service area. Which of the six categories the radio wave intensity value R belongs is determined using threshold values R1 to R4 stored in the ROM 11. In addition, except for the case of being out of service area, the radio wave intensity display in each section is configured by adding 0 to 4 bars to a mark imitating an antenna.

  Specifically, when the radio field intensity value R is larger than the threshold value R4, the radio wave condition is strongest (R> R4), and when the radio field intensity value R is equal to or less than the threshold value R4 and larger than R3, the radio wave condition is strong. (R4 ≧ R> R3), when the radio field intensity value R is equal to or less than the threshold value R3 and greater than R2, the radio wave condition is medium (R3 ≧ R> R2), and the radio field intensity value R is equal to or less than the threshold value R2 and R1. Is greater than the threshold value R1 and is not zero, the radio wave condition is weak (R1 ≧ R> 0), and the radio field intensity is weaker (R1 ≧ R> R1). When the value R is substantially zero, the radio wave state is out of range (R = 0).

  In addition, the radio wave condition display when the radio wave condition is strongest is configured by adding four bars to the mark, and the radio wave condition display when the radio wave condition is strong is configured by adding three bars to the mark. When the radio wave condition is medium, the radio wave condition display is configured by adding two bars to the mark, and when the radio wave condition is weak, the radio wave condition display is configured by adding one bar to the mark. When the radio wave condition is weak, the radio wave condition display is composed of only the mark, and when the radio wave condition is out of the service area, the radio wave condition display is composed of characters “out of service area”. These radio wave status displays are displayed at predetermined positions on the display screen of the display unit 17.

  Next, the flow of the radio wave state display process will be described. FIG. 5 is a flowchart of the radio wave state display process. This process is realized by the control unit 10 executing the operation program stored in the ROM 11 periodically (for example, at intervals of a few seconds).

  First, the control unit 10 monitors data transmitted from the transmission / reception unit 100 via the wireless communication interface 15, and waits for reception of a beacon transmitted from the access point 2 (No in step S1). When the beacon is received (Yes in step S1), the control unit 10 accesses the radio wave intensity value measurement unit 101 and the link establishment determination unit 102 via the wireless communication interface 15, and the radio wave intensity value when the beacon is received. R and the connection status value F are acquired (step S2) and stored in the RAM 12 (step S3).

  Next, the control unit 10 determines whether or not the beacon is received eight times and acquisition of the radio wave intensity value R and the connection status value F for each time has been completed (step S4). If the radio wave intensity value R and the connection status value F for eight times have not yet been acquired (No in step S4), the control unit 10 executes the processes of steps S1 to S3 again to execute the radio wave intensity value R and the connection status. Get the value F.

  Thus, by repeating the processes of steps S1 to S4, the radio wave intensity value R and the connection status value F for eight beacons are sampled and stored in the RAM 12. The wireless communication unit 19 is provided with a buffer for accumulating and storing the radio wave intensity value R and the connection status value F for at least the last eight or more beacons, and the control unit 10 collectively collects the radio wave intensity value R and eight times from the buffer. The connection status value F may be acquired and stored in the RAM 12.

  When it is determined that the radio wave intensity value R and the connection status value F for 8 times have been acquired in the process of step S4 (Yes in step S4), the control unit 10 stores the radio wave intensity value R for 8 times stored in the RAM 12. The worst three pieces of data with the lowest value are specified, and the average value Rave of the specified data is calculated (step S5). Thereafter, the control unit 10 determines whether or not the average value Rave calculated in the process of step S5 is zero (step S6). In this process, not only when the average value Rave is strictly zero, but also when the wireless communication with the access point 2 is practically impossible and the value is so small that it is assumed to be zero.

  When the average value Rave is not zero (No in step S6), the control unit 10 compares the average value Rave with the thresholds R1 to R4 to determine the radio wave state to which the average value Rave belongs to the strongest, strong, medium, weak, and weak. Either one is determined (step S7).

  On the other hand, when it is determined in step S6 that the average value Rave is not zero (Yes in step S6), the control unit 10 stores all the connection status values F for eight times stored in the RAM 12 as “0”. Is determined (step S8). As a result, when even one connection status value F for eight times includes “1” (No in step S8), the control unit 10 determines the current radio wave state to be weak (step S9).

  When all the connection status values F for eight times are “0” in the process of step S8 (Yes in step S8), the control unit 10 determines the current radio wave state to be out of service (step S10).

  As described above, when the radio wave state is determined through any one of steps S7, S9, and S10, the control unit 10 is displayed on the display unit 18 by the radio wave state display indicating the determined radio wave state. The radio wave state display is updated (step S11), and the process ends. The radio wave state display displayed on the display unit 18 is continuously displayed until it is updated in the next radio wave state display process.

  As described above, the handy terminal 1 in this embodiment determines the radio wave state with the access point 2 based on the radio wave intensity value R of the beacon for a plurality of times measured by the radio wave intensity value measuring unit 101. If the radio wave condition is determined by sampling a plurality of radio wave intensity values R in this manner, the radio wave intensity value R varies as compared with the conventional case where the radio wave intensity value R is sampled only once and the radio wave condition is determined. The influence of the signal can be mitigated, so that the radio wave status display matches the actual situation.

  The handy terminal 1 determines the radio wave state with the access point 2 based on the worst three radio wave intensity values R included in the radio wave intensity values R of the beacons measured by the radio wave intensity value measuring unit 101. . By selecting a plurality of sampled radio wave intensity values R having a small value and determining the radio wave state, it is possible to prevent the radio wave state from deviating from the actual state and being displayed well enough.

  Further, the handy terminal 1 determines the radio wave state using the average value Rave of the radio wave intensity values R for the three worst times. If the average value Rave is used in this way, the radio wave state display will not be out of service unless the worst three radio wave intensity values R are all zero. Therefore, the possibility of giving anxiety to the user due to out-of-service display is greatly reduced.

  The handy terminal 1 determines the radio wave state using not only the radio wave intensity value R but also the connection status value F indicating whether or not a communication link with the access point 2 is established. By determining the radio wave state using the two determination elements generated by the wireless communication unit 19 in this way, the radio wave state display becomes more suitable for the actual situation.

  In particular, in the above-described embodiment, the radio wave state is determined using the connection status value F when the result of determining the radio wave state using the radio wave intensity value R is out of the service area. In this way, even if it is determined that the radio wave intensity value R is out of service area, depending on the value of the connection status value F, the out of service area may not be displayed. Therefore, compared with the case where only the radio wave intensity value R is used, the radio wave state is less likely to be displayed as out of service area, and the possibility of giving the user anxiety is further reduced. Even if the result of determining the radio wave state based on the radio wave intensity value R is out of service area, the communication link with the access point 2 is not completely disconnected if all the connection status values F are not “0”. In view of the above, even if the control is performed as described above, the radio wave state display does not deviate from the actual state.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying constituent elements without departing from the scope of the invention in the implementation stage. Specific examples of modifications are as follows.

(1) That is, in the said embodiment, the case where this invention was applied to the handy terminal 1 with which the ordering system used in restaurants, such as a restaurant, was demonstrated. However, it goes without saying that the present invention can also be applied to wireless communication terminals used in other systems such as an inventory system in the logistics industry.

(2) In the above embodiment, the radio wave state is determined using the average value Rave of the radio wave intensity values R for the worst three out of the radio wave intensity values R sampled for eight beacons. However, regarding the procedure for determining the radio wave state using the radio wave intensity value R sampled for a plurality of beacons, various embodiments other than those disclosed in the above embodiment can be adopted. For example, the radio wave intensity value R may be set to more or less than 8 sampling times, and the radio wave intensity value R selected for the average value calculation from the sampling results may be the worst 3 times. The worst may be selected twice or more or randomly. Further, the average value Rave may be calculated based on all the radio field intensity values R sampled for a plurality of beacons, or the average value Rave may be calculated from all the sampled radio field intensity values R without calculating the average value Rave. The radio wave condition may be determined by selecting any one that is not zero.
In addition to the procedure for determining the radio wave state exemplified here, a procedure that can obtain an optimum result reflecting the use status of the wireless communication terminal, the user's request, and the like may be adopted.

(3) In the above embodiment, when the result of determining the radio wave state using the radio wave intensity value R is out of range, the radio wave state is determined to be out of range when the connection status values F are all “0”. The radio wave condition is determined to be weak when one is “1”. However, when the radio wave condition determination order using the radio wave intensity value R and the connection status value F is changed and the radio wave condition is determined using the connection status value F, the radio wave condition value R is used. May be determined. Further, when the sampled connection status values F are all “0”, the radio wave state is not determined to be out of service area, but when the number of connection status values F of “0” is equal to or less than a predetermined threshold, the radio wave state is determined. You may employ | adopt other determination methods, such as determining out of service area. Alternatively, the radio wave state may be determined using only the connection status value F sampled for a plurality of beacons without using the radio wave intensity value R. In this case, for example, the number of ones that are “1” from the connection status value F sampled for a plurality of beacons is counted, and the radio wave state may be determined by comparing the count result with a predetermined threshold value. .

(4) In the embodiment, the control unit 10 of the handy terminal 1 executes the process shown in the flowchart of FIG. However, it is not always necessary for the control unit 10 to execute all of the processing shown in this flowchart, and the processing may be distributed to the control microcomputer of the wireless communication unit 19 and executed. If the processing of the control unit 10 is distributed in this way, the processing load on the control unit 10 due to the radio wave state display processing is greatly reduced, so that it is possible to prevent work delays using the handy terminal 1.

In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, you may delete some components from all the components shown by the said embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.
Each invention described in the scope of claims of the present application is appended below.
[1] A wireless communication unit that wirelessly communicates with a base station that periodically transmits a beacon via radio waves, a radio wave intensity value measuring unit that measures a radio wave intensity value of the beacon received by the wireless communication unit, A radio wave state determining unit that determines a radio wave state with the base station based on a radio wave intensity value of a plurality of beacons measured by the radio wave intensity value measuring unit, and a radio wave state determined by the radio wave state determining unit are displayed. A wireless communication terminal comprising: a display unit;
[2] It further comprises selection means for selecting a radio field intensity value satisfying a predetermined condition from the radio field intensity values of the plurality of beacons measured by the radio field intensity value measurement unit, The radio communication terminal according to [1], wherein a radio wave state with the base station is determined based on a radio wave intensity value selected by the selection unit.
[3] The apparatus further includes an average value calculating unit that calculates an average value of the radio field intensity values of the beacons that are measured multiple times by the radio field intensity value measuring unit, and the radio wave state determining unit is The radio communication terminal according to [1], wherein a radio wave state with the base station is determined using an average value of radio wave intensity values.
[4] Wireless communication means that wirelessly communicates with a base station that periodically transmits beacons via radio waves, radio wave intensity value measuring means that measures a radio wave intensity value of a beacon received by the wireless communication means, and the wireless Link establishment determination means for determining whether or not a communication link with the base station is established based on a beacon received by the communication means, and radio wave intensity of a plurality of times the beacon measured by the radio wave intensity value measurement means A radio wave state determination unit that determines a radio wave state with the base station based on at least one of a value and a determination result of the link establishment determination unit for the plurality of beacons, and a radio wave determined by the radio wave state determination unit And a display means for displaying the status.
[5] The radio wave condition determining means determines at least whether the radio wave condition with the base station belongs to within or outside the range, and the radio wave intensity value of the beacon for a plurality of times measured by the radio wave intensity value measuring means, And, when the result of determining the communication state with the base station using any one of the determination results of the link establishment determination means for the plurality of beacons is out of service, using the other, The radio communication terminal according to [4], wherein the radio wave state is determined.
[6] A wireless communication unit that wirelessly communicates via radio waves with a base station that periodically transmits a beacon, and a radio wave intensity value measurement unit that measures a radio wave intensity value of a beacon received by the wireless communication unit A control program for a wireless communication terminal, wherein the wireless communication terminal is configured to acquire a plurality of beacon radio wave intensity values from the radio wave intensity value measurement unit and a plurality of acquired beacon radio wave intensity values. A control program for realizing a function of determining a radio wave state with the base station and a function of displaying the determined radio wave state on a display unit.

  R1 to R4: Threshold value, R: Radio wave intensity value, F: Connection status value, Rave ... Average value, 1 ... Handy terminal, 2 ... Access point, 10 ... Control unit, 15 ... Wireless communication interface, 17 ... Input unit, 18 DESCRIPTION OF SYMBOLS ... Display part, 19 ... Wireless communication part, 100 ... Transmission / reception part, 101 ... Radio wave intensity value measurement part, 102 ... Link establishment determination part, 103 ... Antenna

JP 2002-34077 A

Claims (4)

Wireless communication means for wirelessly communicating via radio waves with a base station that periodically transmits beacons;
Radio wave intensity value measuring means for measuring the radio wave intensity value of the beacon received by the radio communication means;
Link establishment determination means for determining whether a communication link with the base station is established based on a beacon received by the wireless communication means;
Based on at least one of the radio field intensity value of the beacon for a plurality of times measured by the radio field intensity value measurement unit and the determination result of the link establishment determination unit for the beacon for the plurality of times, a radio wave state with at least the base station is Radio wave condition determining means for determining whether the radio wave condition belongs to within or out of service area, and if the result is out of service area, using the other, at least whether the radio wave condition with the base station belongs to within or within service area ,
Display means for displaying the radio wave condition determined by the radio wave condition determining means;
A wireless communication terminal comprising: A selection means for selecting a radio field intensity value satisfying a predetermined condition from the radio field intensity values of the plurality of beacons measured by the radio field intensity value measurement unit;
The radio wave state determining means determines the radio wave intensity value selected by the selection means when determining the communication state with the base station based on the radio wave intensity values of a plurality of beacons measured by the radio wave intensity value measuring means. wireless communication terminal according to claim 1, characterized in that use. An average value calculating means for calculating an average value of the radio wave intensity values of a plurality of beacons measured by the radio wave intensity value measuring means;
The radio wave condition determining means determines the radio wave calculated by the average value calculating means when determining the communication status with the base station based on the radio wave intensity values of a plurality of beacons measured by the radio wave intensity value measuring means. wireless communication terminal according to claim 1, characterized in that there use the average value of the intensity values. A wireless communication unit that wirelessly communicates via radio waves with a base station that periodically transmits a beacon, a radio wave intensity value measurement unit that measures a radio wave intensity value of a beacon received by the wireless communication unit, and the wireless communication unit A wireless communication terminal control program comprising a link establishment determination unit that determines whether a communication link with the base station is established based on a received beacon ,
In the wireless communication terminal,
A function of acquiring the radio wave intensity value of a plurality of beacons from the radio wave intensity value measuring unit;
A function of acquiring a determination result for each of a plurality of beacons from the link establishment determination unit;
Whether at least one of the acquired radio wave intensity values of the beacon and the determination result of the link establishment determination unit for the multiple beacons belongs to the range or out of range of the base station And when the result is out of range, using the other, at least whether the radio wave condition with the base station belongs to within the range or out of range ,
A function to display the determined radio wave condition on the display unit;
Control program to realize.

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