JP2015065571A - Radio communication apparatus and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication apparatus for allowing communication performance in antennas to be easily secured by detecting the change of the communication performance in the antennas arranged in a cover.SOLUTION: A radio communication apparatus enables the attachment/detachment of a cover with antennas arranged therein. The radio communication apparatus includes contact points to be connected to the antennas of the cover. The radio communication apparatus holds a radio wave state log indicating the recording of signal quality in a signal to be received from a radio base station. The radio communication apparatus detects contact between the antennas and the contact points on the basis of a signal by the contact between the contact points and the antennas. In this case, the radio communication apparatus acquires the signal quality of the reception signal of the radio base station and compares it with the past signal quality within a fixed period in the radio base station with referring to the radio wave state logs. The radio communication apparatus determines whether the signal quality is deteriorated and allows a display, etc. to notify of an antenna connection state in accordance with the determination result.

Description

  The present invention relates to a wireless communication device in which an antenna can be attached and detached, and more particularly to a technique for satisfactorily exhibiting antenna communication performance.

  Wireless communication devices having a wireless communication function, such as smartphones and tablet terminals, have become widespread. These wireless communication devices have a cover portion that can be opened and closed in order to attach a SIM (Subscriber Identity Module) card, a battery pack, or the like to the main body. By attaching the cover, the battery storage part of the main body of the wireless communication device is not exposed, and foreign matter is prevented from entering the main body of the device, thereby improving the reliability of the wireless communication device. In addition, there is a device whose waterproof performance is improved by sealing the exposed portion of the wireless communication device with a cover.

  In a wireless communication device, if the cover is forgotten to be closed, the protection inside the device will not function sufficiently. There are various techniques for preventing forgetting to close the cover of the wireless communication device. For example, Japanese Patent Laying-Open No. 2013-21431 (Patent Document 1) discloses a cover structure that can prevent forgetting to close a cover in an electronic device. The electronic device described in Patent Document 1 is an electronic device having a cover for covering at least a part of the case, wherein the case is provided with a pair of fixed contacts, the cover is provided with one movable contact, and the cover is opened. When the switch is configured, the switch constituted by the fixed contact and the movable contact is turned off, and based on this off state, it is detected that the cover is opened, and when the cover is closed, the switch is turned on. Based on this ON state, it is detected that the cover is closed.

JP 2013-21431 A

  In some wireless communication devices, an antenna is provided on a cover, and the cover is attached to a housing of the wireless communication device to function as an antenna of the wireless communication device. In addition, there is a cover with a built-in battery that incorporates an antenna.

  However, with the use of wireless communication devices, there is a possibility that the communication performance of the antenna cannot be ensured. For example, the antenna may be repeatedly attached to the wireless communication device, the contact between the antenna and the wireless communication device may become dirty, or the antenna may be deformed. . According to the technique of Patent Document 1, the open / closed state of the cover is detected. However, when the contact between the antenna and the contact becomes unsatisfactory due to, for example, deformation or contamination of the contact between the antenna and the housing, antenna communication is performed. It becomes difficult to ensure performance. When the communication performance of the antenna is not ensured as described above, the user continues to use the wireless communication device without sufficiently exhibiting the communication performance.

  The present invention provides a technique for satisfactorily exhibiting the communication performance of an antenna provided on a cover in a wireless communication device.

  The wireless communication device according to an embodiment can be attached and detached. The cover is provided with an antenna and is detachable from the housing of the wireless communication device. The wireless communication device has a contact for connecting to the antenna of the cover while the cover is attached to the wireless communication device, and the cover A storage unit for storing radio wave state log information indicating a record of the quality of a signal received from a wireless base station via an antenna in a state where the wireless communication device is mounted, and a control for controlling the operation of the wireless communication device The control unit is configured to detect a contact between the antenna and the contact based on a signal from the contact between the contact and the antenna, and a quality of the signal received from the radio base station by the wireless communication device. And the quality of the signal received from the radio base station when the detection unit detects contact between the antenna and the contact point. Was the quality of the signal received from the radio base station deteriorated by comparing the quality of the signal calculated by the acquisition unit and the quality of the signal of the radio base station indicated in the radio wave status log information? A determination unit that determines whether or not, and a notification control unit that performs notification indicating a contact state of the antenna with the contact point according to the determination result of the signal quality.

  According to another embodiment, a program for controlling the operation of a wireless communication device that can be attached and detached is provided. The cover is provided with an antenna and is detachable from the housing of the wireless communication device. The wireless communication device receives a contact from the wireless base station via the antenna when the cover is attached to the wireless communication device and the contact for connecting to the antenna of the cover while the cover is attached to the wireless communication device. A memory for storing radio wave state log information indicating the recording of the quality of the signal to be transmitted, and a processor for controlling the operation of the wireless communication device. The program detects, on the basis of a signal from contact between the contact and the antenna, a processor, detects that the antenna and the contact are in contact, calculates the quality of the signal received from the wireless base station by the wireless communication device, and stores When the contact between the antenna and the contact point is detected by the step of storing the signal as radio wave state log information and the detecting step, the quality of the signal received from the radio base station is calculated by the acquisition unit, and the calculated signal quality And determining whether or not the quality of the signal received from the radio base station has deteriorated by comparing the signal quality record of the radio base station indicated in the radio wave state log information, According to the determination result, a step of performing notification indicating the state of contact with the contact of the antenna is executed.

  According to the one embodiment, the communication performance of the antenna can be easily ensured by notifying the change of the communication performance of the antenna by the wireless communication device, and the convenience of the user can be improved.

  The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the present invention taken in conjunction with the accompanying drawings.

FIG. 2 is a diagram showing an external configuration of a wireless communication device 100 and a cover 200. 2 is a block diagram illustrating configurations of a wireless communication device 100 and a cover 200. FIG. It is a figure which shows the electromagnetic wave state log. 10 is a flowchart showing processing for determining a state of antenna connection when the wireless communication device 100 detects antenna connection. It is a figure which shows the example which alert | reports abnormality of the connection of an antenna by the display. FIG. 6 is a diagram illustrating an external configuration of a wireless communication device 100 and a cover 200 according to a second embodiment. 6 is a block diagram showing a configuration of a wireless communication device 100 and a cover 200 in Embodiment 2. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  Hereinafter, an example in which the cover 200 is provided with two antennas and two contacts will be described. However, the number of antennas is not limited to this, and even if there is one, three or more antennas are provided. May be. The present invention can be implemented by performing, for each antenna, processing for notifying the connection state between the wireless communication device 100 and each antenna of the cover 200 and other processing described in the following embodiment. it can. In this case, the number of contacts depends on the number of antennas.

<Embodiment 1>
FIG. 1 is a diagram showing an external configuration of the wireless communication device 100 and the cover 200. The wireless communication device 100 is an information processing apparatus having a wireless communication function. The cover 200 is provided with an antenna, and is a member that can be attached to and detached from the housing of the wireless communication device 100.

  In FIG. 1, Configuration Example A and Configuration Example B show a wireless communication device 100A and a wireless communication device 100B, respectively. Hereinafter, wireless communication devices such as the wireless communication device 100A and the wireless communication device 100B may be collectively referred to as “wireless communication device 100”. Further, covers provided with an antenna, such as the cover 200A and the cover 200B, may be collectively referred to as “cover 200”.

  As shown in configuration example A of FIG. 1, the wireless communication device 100A can be fitted with a cover 200A via a contact. The wireless communication device 100A includes a display 110 and operation keys 112 on the main surface of the housing, and contacts 101 on one side surface of the housing (in the example of FIG. 1, the side surface on the lower end of the housing) A contact 102 and a connection terminal 103 are provided.

  The display 110 displays various information such as images. The operation key 112 is a physical input device for accepting a user input operation.

  The contact 101 and the contact 102 are contacts for connecting to the antenna of the cover 200 </ b> A when the cover 200 is attached to the wireless communication device 100. The connection terminal 103 is a terminal for attaching the cover 200 to the wireless communication device 100. These contacts are electrically connected to a circuit board provided inside the casing of the wireless communication device 100A.

  The cover 200A is a member having an antenna (not shown in the configuration example A of FIG. 1). The cover 200 </ b> A includes a contact 211, a contact 213, and a connection terminal 215.

  The contact 211 and the contact 213 are provided at a tip portion of an antenna built in the cover 200A, and function as a contact for bringing the antenna of the cover 200A into contact with the wireless communication device 100A. For example, the contact 101 and the contact 102 of the wireless communication device 100A are, for example, spring movable contacts, and the contact 211 and the contact 213 of the cover 200A are fixed contacts. When the cover 200A is attached to the wireless communication device 100A, for example, the contact 101 and the contact 211 are in contact with each other, and the contact 102 and the contact 213 are in contact with each other. The connection terminal 215 is a terminal for attaching the cover 200A to the connection terminal 103 of the wireless communication device 100A.

  As illustrated in the configuration example B of FIG. 1, the wireless communication device 100 </ b> B may be a wireless communication device including a numeric keypad arrangement as the operation keys 112. Further, as illustrated in the configuration example B, the cover 200B functions as an antenna of the wireless communication device 100 by being attached to the wireless communication device 100B.

<Configuration>
FIG. 2 is a block diagram illustrating configurations of the wireless communication device 100 and the cover 200. As shown in FIG. 2, the wireless communication device 100 includes a plurality of contacts (contact 101, contact 102), a connection terminal 103, a transmission / reception circuit (transmission / reception circuit 104, transmission / reception circuit 105) corresponding to each contact, and transmission / reception control. Unit 106, power control unit 107, battery 108, touch panel 109, display 110, camera 111, operation key 112, positioning sensor 113, storage unit 114, audio processing unit 115, microphone 116, Speaker 117, control unit 118, and acceleration sensor 121.

  The wireless communication device 100 performs wireless communication via an antenna by attaching the cover 200. Further, the cover 200 functions as an antenna of the wireless communication device 100 by being attached to the wireless communication device 100.

  The contact 101 and the contact 102 are contact portions for bringing the antenna of the cover 200 into contact with the wireless communication device 100 when the cover 200 is attached to the wireless communication device 100.

  The connection terminal 103 is a terminal for connecting the wireless communication device 100 and the cover 200.

  The transmission / reception circuit 104 and the transmission / reception circuit 105 perform modulation / demodulation processing for transmitting and receiving signals via the antenna 212 and the antenna 214 so that the wireless communication device 100 with the cover 200 attached communicates with other wireless communication devices. The transmission / reception circuit 104 and the transmission / reception circuit 105 are communication modules including a tuner, an RSSI (Received Signal Strength Indicator) calculation circuit, a CRC (Cyclic Redundancy Check) calculation circuit, a high-frequency circuit, and the like. The transmission / reception circuit 104 and the transmission / reception circuit 105 perform modulation / demodulation and frequency conversion of a radio signal transmitted / received by the wireless communication device 100, and provide a reception signal to the transmission / reception control unit 106. The transmission / reception circuit 104 is a communication module compatible with mobile communication systems such as LTE (Long Term Evolution) and UMTS (Universal Mobile Telecommunications System), and is compatible with communication over a relatively long distance. The transmission / reception circuit 105 is a communication module compatible with, for example, a short-range wireless communication standard such as Bluetooth (registered trademark) or a wireless LAN (Local Area Network) standard such as IEEE (Institute of Electrical and Electronic Engineers) 802.11. Yes, it supports relatively short distance communication.

  The transmission / reception control unit 106 sends control signals to the transmission / reception circuit 104 and the transmission / reception circuit 105, and controls transmission / reception of signals by the transmission / reception circuit 104 and the transmission / reception circuit 105. For example, the transmission / reception control unit 106 selects a circuit to be used in the transmission / reception circuit 104 in accordance with signal transmission / reception. The transmission / reception control unit 106 selects an antenna to be used for communication when the wireless communication device 100 performs wireless communication using either or both of the transmission / reception circuit 104 and the transmission / reception circuit 105. Take control. The transmission / reception control unit 106 is connected to the contact point 101 and the contact point 102, and the contact point 101 and the contact point 211 are changed in response to a change in signal caused by the contact point 101 and the contact point 102 contacting the contact point 211 and the contact point 213, respectively. , And contact between the contact 102 and the contact 213 is detected.

  The power control unit 107 controls power supply to each circuit of the wireless communication device 100. The power control unit 107 is, for example, a power control IC (Integrated Circuit).

  The battery 108 is a supply source that supplies power for operating each circuit of the wireless communication device 100. The electric power from the battery 108 is supplied to each circuit under the control of the power supply control unit 107.

  The touch panel 109 receives user input operations. The touch panel 109 receives a user's contact operation by using, for example, a capacitive type. The touch panel 109 outputs an input operation by the user to the control unit 118.

  The display 110 displays icons, background images, and the like on the menu screen, and displays still images, moving images, and the like according to application operations. The display 110 is realized by, for example, an LCD (Liquid Crystal Display) or an organic EL (electroluminescence) display.

  The camera 111 is a camera module that receives incident light and converts it into an electrical signal. The camera 111 includes a CMOS (Complementary Metal Oxide Semiconductor) sensor, an ADC (Analog to Digital Converter), and the like, and outputs an image signal to the control unit 118.

The operation key 112 is a physical input device for accepting a user input operation.
The positioning sensor 113 is a sensor for measuring the position of the wireless communication device 100, and is a GPS (Global Positioning System) module, for example.

  The storage unit 114 is configured by, for example, a flash memory, and stores data and programs used by the wireless communication device 100. In one aspect, the storage unit 114 stores the radio wave state log 41. The radio wave status log 41 is information indicating a record of signal quality (reception level, signal strength, etc.) received from the radio base station by the radio communication device 100, as will be described in detail later.

  The acceleration sensor 121 detects a change in acceleration of the wireless communication device 100 and detects the inclination of the wireless communication device 100.

  The audio processing unit 115 performs modulation / demodulation of the audio signal. The audio processing unit 115 modulates the signal given from the microphone 116 and gives the modulated signal to the control unit 118. In addition, the audio processing unit 115 gives an audio signal to the speaker 117. The sound processing unit 115 is realized by a sound processing processor, for example.

  The microphone 116 receives a voice input by the user and gives a voice signal corresponding to the voice input to the voice processing unit 115.

  The speaker 117 converts the sound signal given from 115 into sound and outputs the sound to the outside of the wireless communication device 100.

  The control unit 118 controls the operation of the wireless communication device 100 by reading and executing a control program stored in the storage unit 114. The control unit 118 is, for example, an application processor. The control unit 118 exhibits the functions of the contact detection unit 81, the radio wave state acquisition unit 82, the connection determination unit 83, and the notification control unit 84 by operating according to a program.

  The contact detection unit 81 receives a signal from the contact between the contact 101, the contact 102, and the like of the wireless communication device 100 and the contact (contact 211, contact 213) of each antenna of the cover 200 from the transmission / reception control unit 106, and It is detected that each antenna and each contact (contact 101, contact 102, etc.) of wireless communication device 100 are in contact.

  The radio wave state acquisition unit 82 calculates the quality of the signal received by the wireless communication device 100 from the radio base station, and causes the storage unit 114 to store the quality as the radio wave state log 41.

  When the contact detection unit 81 detects contact between each antenna of the cover 200 and each contact point of the wireless communication device 100, the connection determination unit 83 determines the quality of the signal received from the radio base station by the radio wave state acquisition unit 82. The calculated quality of the signal is compared with a record of the quality of the received signal in the past, and the deterioration of the quality of the signal received from the radio base station is determined.

  The notification control unit 84 notifies the state of connection between the wireless communication device 100 and each antenna of the cover 200 on the display 110 or the like according to the result of the determination processing of the connection determination unit 83. When the connection determination unit 83 determines that the quality of the signal received from the radio base station is deteriorated, the notification control unit 84 determines that the deterioration of the signal quality is caused by each antenna of the cover 200 and the wireless communication device. Notification that there is an abnormality in the connection with 100 is performed. In order to notify the abnormality of the antenna connection, the wireless communication device 100 may display, for example, a text that suggests to the user that the antenna connection may be abnormal on the display 110. In addition, the wireless communication device 100 may output a predetermined sound from the speaker 117 in order to notify the abnormality of the antenna connection, or the wireless communication device 100 includes a light emitting element such as an LED (Light Emitting Diode). May be notified by light emission of these light emitting elements, or when the wireless communication device 100 is provided with a vibrator or the like, the above notification may be made by using vibration by the vibrator.

  As shown in FIG. 2, the cover 200 includes an antenna unit 201 and an antenna unit 202. The antenna unit 201 includes a contact 211 and an antenna 212. The antenna unit 202 includes a contact 213 and an antenna 214. When the cover 200 is attached to the wireless communication device 100, the contact 101 and the contact 211 come into contact with each other, the contact 102 and the contact 213 come into contact, and the connection terminal 103 and the connection terminal 215 come into contact with each other. The wireless communication device 100 attached with the cover 200 outputs a signal received from the space via the antenna (antenna 212, antenna 214) of the cover 200 to the transmission / reception circuit 104 and the transmission / reception circuit 105, respectively.

<Data structure>
With reference to FIG. 3, data used in processing of the wireless communication device 100 will be described. FIG. 3 is a diagram showing the radio wave state log 41.

  The radio wave state log 41 is a diagram showing a record of the quality of the signal received by the wireless communication device 100 from the wireless base station. The wireless communication device 100 intermittently receives radio waves transmitted from a wireless base station. For example, the radio communication device 100 monitors radio waves transmitted from a radio base station at intervals of several times per minute, and identifies information for identifying the radio base station and signal quality of a signal received from the radio base station (Reception level and the like) and the date and time when the signal is received are associated with each other and recorded as the radio wave state log 41. One record of the radio wave state log 41 includes a date 41A, a base station ID 41B, and a radio wave state 41C.

  The date and time 41A indicates the date and time when the radio communication device 100 records the quality of the received signal from the radio base station. The base station ID 41B indicates information for identifying the radio base station. The radio wave state 41C indicates the signal quality of the received signal, and stores, for example, a reception level value.

<Operation>
The operation of the wireless communication device 100 will be described with reference to FIG. FIG. 4 is a flowchart illustrating processing in which the wireless communication device 100 determines an antenna connection state when detecting an antenna connection. In the wireless communication device 100, for example, the transmission / reception control unit 106 detects that the cover 200 is attached to the wireless communication device 100 and the contact 101 of the wireless communication device 100 and the contact 211 of the cover 200 are in contact, and based on this detection. The transmission / reception control unit 106 outputs a signal indicating attachment of the cover 200 to the control unit 118, and thus the processing of FIG.

  In step S <b> 41, the control unit 118 of the wireless communication device 100 determines whether there is an output from the transmission / reception control unit 106 that indicates a contact between the antenna of the cover 200 and the contact (contact 101, contact 102) of the wireless communication device 100. To do. If there is an output from the transmission / reception control unit 106 indicating a contact between the antenna of the cover 200 and the contact of the wireless communication device 100 (YES in step S41), the process of step S43 is performed, otherwise (in step S41). NO) (for example, when the cover 200 is detached from the wireless communication device 100 immediately after the wireless communication device 100 and the cover 200 are attached), the process of step S42 is performed.

  In step S42, the wireless communication device 100 notifies the user that the antenna connection should be confirmed after turning off the power of the wireless communication device 100, and ends the process. For example, the wireless communication device 100 performs notification by displaying on the display 110 a prompt to connect an antenna after the power is turned off.

  In step S43, the control unit 118 searches for a radio base station, and determines whether or not a search for a signal transmitted from the radio base station is successful. If the search for the radio base station signal is successful (YES in step S43), control unit 118 performs the process of step S47, and otherwise (NO in step S43), performs the process of step S45.

  In step S45, the control unit 118 executes the search for the radio base station again, and performs the process of step S43.

  In step S47, the control unit 118 acquires the radio wave state (for example, reception level) of the received signal based on the quality of the signal received by the wireless communication device 100 from the radio base station, and records it as the radio wave state log 41.

  In step S49, the control unit 118 refers to the radio wave state log 41, and regarding the quality of the received signal, the radio base station subjected to signal quality calculation in step S47 from the logs within a certain period from the determination time point. It is determined whether or not there is a record of the signal quality of the past received signal corresponding to the identification information. If there is a record of the quality of the received signal in the past (there is a record in step S49), control unit 118 performs the process of step S51; otherwise (there is no record in step S49), the process ends.

  In step S51, the control unit 118 reads a record of the signal quality of the past reception signal of the radio base station from the log within a certain period, and compares it with the radio wave state acquired in step S47, and the reception level is a threshold value. It is determined whether or not the condition has deteriorated. The control unit 118 performs the process of step S53 when the signal quality has deteriorated beyond the threshold (YES in step S51) as compared to the past signal quality of the radio base station in the log within a certain period of time, and if not, (NO in step S51), the process ends.

  In step S53, the control unit 118 notifies the connection 110 between each antenna of the cover 200 and the wireless communication device 100 via the display 110 or the like, and performs the process of step S41.

  As described above, when the time difference between the detection of the connection of the antenna and the recording date and time of the recording shown in the radio wave state log 41 is as large as a certain time or more, the radio wave state changes due to the movement of the location of the wireless communication device 100. Therefore, the wireless communication device 100 does not perform the notification process in steps S51 and S53.

<Screen display example>
An example of a method for notifying contact abnormality between each antenna of the cover 200 and the wireless communication device 100 will be described. FIG. 5 is a diagram illustrating an example in which an abnormality in antenna connection is reported on the display 110.

  The control unit 118 displays the text “There is an abnormality in the antenna connection. Please connect again” or the like on the notification message display unit 130 of the display 110 by the process of step S53. A notification is made to prompt each antenna of the cover 200 to reconnect to the wireless communication device 100.

<Embodiment 2>
With reference to FIG. 6 and FIG. 7, the radio | wireless communication apparatus 100 of Embodiment 2 is demonstrated. FIG. 6 is a diagram illustrating an external configuration of the wireless communication device 100 and the cover 200 according to the second embodiment. As shown in FIG. 6, the wireless communication device 100C can be fitted with a cover 200C via a contact. The cover 200C includes an antenna (not shown) and a battery pack.

  The wireless communication device 100C includes a display 110, operation keys 112, and a speaker 117 on the main surface of the casing, and contacts 101 on one side surface of the casing (the lower end of the casing in the example of FIG. 1). A contact 102 and a connection terminal 103. The connection terminal 103 of the wireless communication device 100 </ b> C is connected to the power control unit 107 and is a contact for connecting to the battery pack of the cover 200.

  The cover 200C functions as a member that protects the wireless communication device 100C from external pressure or the like when the cover 200C is attached to the wireless communication device 100C. For example, the cover 200C functions as a member that absorbs an impact applied to the wireless communication device 100C when the wireless communication device 100C falls on the ground or the like. Further, the cover 200 </ b> C has a battery pack, thereby supplying a power supply voltage from the battery pack to the wireless communication device 100 </ b> C. The cover 200C has a contactless charging function. For example, the cover 200C is placed on a charging device corresponding to a wireless power supply standard (such as the Qi standard of the international standard for wireless power supply), thereby receiving power from the charging device. Thus, the wireless communication device 100C to which the cover 200C is attached may be chargeable. The cover 200 </ b> C includes a contact 211, a contact 213, and a connection terminal 215.

  FIG. 7 is a block diagram showing a configuration of radio communication apparatus 100 and cover 200 in the second embodiment. The cover 200 includes a power supply unit 203. The power supply unit 203 includes a battery 216 and supplies power to the wireless communication device 100 when the cover 200 is attached to the wireless communication device 100. In the example of FIG. 2, the cover 200 charges the battery 216 by wireless power feeding. Wireless communication device 100 and cover 200 are connected by connection terminal 103 of wireless communication device 100 and connection terminal 215 of cover 200.

  As described above, the cover 200 functions as an antenna unit, a function of protecting the wireless communication device 100 from external pressure, a function of supplying power from the battery 216 of the cover 200 to the wireless communication device 100, and a charging function by wireless power feeding. Thus, while avoiding damage to the wireless communication device 100, it is possible to reduce the trouble of charging such as connecting a charger to a terminal or the like, thereby improving user convenience.

<Embodiment 3>
A wireless communication device according to the third embodiment will be described. In the wireless communication device 100 according to the first embodiment, the transmission / reception control unit 106 detects contact between the wireless communication device 100 and each antenna of the cover 200, so that the signal of the reception signal of the wireless communication device 100 before and after the cover 200 is attached. The quality is compared, and the abnormality of the antenna contact is notified according to the comparison result.

  The wireless communication device 100 according to Embodiment 3 determines the state of antenna contact when the wireless communication device 100 is activated, such as when the power is turned on or when the battery is replaced. For example, when the power is on, the wireless communication device 100 may execute the process illustrated in FIG. Thereby, when the contact of the antenna is poor due to battery replacement or the like, the wireless communication device 100 can notify the user that the antenna connection is poor.

  The wireless communication device 100 may determine the state of contact of the antenna when the acceleration sensor 121 outputs a change in acceleration of a certain level or more and a drop or impact is applied to the wireless communication device 100. There is a possibility that the antenna is deformed by an impact applied to the wireless communication device 100 and the performance of the antenna is deteriorated. The wireless communication device 100 can notify the user when an impact is applied to the wireless communication device 100 due to dropping or the like, and the performance of the antenna is changed to deteriorate the communication performance.

<Summary>
According to the wireless communication device 100 and the cover 200 described in the above embodiment, it is possible to notify the user of an antenna connection failure. Therefore, the user can easily recognize the poor connection of the antenna and cope with the deterioration of the communication performance without preparing an expensive measuring instrument.

  The wireless communication device of the present invention is realized by a processor and a program executed on the processor. The program for realizing the present invention is provided by transmission / reception using a network via a communication interface.

  The embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 wireless communication device, 101 contact, 102 contact, 103 connection terminal, 104 transmission / reception circuit, 105 transmission / reception circuit, 106 transmission / reception control unit, 107 power control unit, 108 battery, 109 touch panel, 110 display, 111 camera, 112 operation key, 113 Positioning sensor, 114 storage unit, 115 voice processing unit, 116 microphone, 117 speaker, 118 control unit, 130 notification sentence display unit, 200 cover, 201 antenna unit, 202 antenna unit, 203 power supply unit, 211 contact point, 212 antenna, 213 contact, 214 antenna, 215 connection terminal, 216 battery.

Claims (5)

A wireless communication device with a removable cover,
The cover is provided with an antenna and is detachable from the housing of the wireless communication device,
The wireless communication device is:
A contact for connecting to the antenna of the cover in a state where the cover is attached to the wireless communication device;
In a state where the cover is attached to the wireless communication device, a storage unit for storing radio wave state log information indicating a record of quality of a signal received from a wireless base station via the antenna;
A control unit for controlling the operation of the wireless communication device,
The controller is
Based on a signal from contact between the contact and the antenna, a detection unit for detecting that the antenna and the contact are in contact;
An acquisition unit for calculating the quality of the signal received by the wireless communication device from the wireless base station and causing the storage unit to store the signal as the radio wave state log information;
When the detection unit detects contact between the antenna and the contact point, the acquisition unit calculates the quality of the signal received from the radio base station, and the calculated signal quality and the radio wave state log information A determination unit that determines whether or not the quality of the signal received from the radio base station has deteriorated by comparing the record of the signal quality of the radio base station shown in FIG.
A wireless communication device including a notification control unit that performs notification indicating a state of contact of the antenna with the contact point according to a determination result of the signal quality.   The comparison by the determination unit of the control unit calculates a quality of a signal received from the searched radio base station by searching for a radio base station when contact between the antenna and the contact point is detected. 2. The wireless communication device according to claim 1, comprising comparing the quality of the detected signal with a record of the quality of the signal applied to the searched radio base station based on the radio wave state log information.   The comparison by the determination unit of the control unit is performed by searching for a radio base station when contact between the antenna and the contact is detected, and calculating a quality of a received signal from the searched radio base station. 2. The wireless communication device according to claim 1, further comprising: comparing the quality of the received signal with a record of the quality of the signal applied to the wireless base station within a predetermined time based on the radio wave state log information. For the detection unit of the control unit to detect that the antenna and the contact point are in contact with each other,
When the cover is attached to the wireless communication device and the wireless communication device is turned off, the antenna and the contact are connected to each other based on a signal generated by the contact between the contact and the antenna. The wireless communication device according to claim 1, comprising detecting contact. A program for controlling the operation of a wireless communication device capable of attaching and detaching a cover,
The cover is provided with an antenna and is detachable from the housing of the wireless communication device,
The wireless communication device includes: a contact for connecting to the antenna of the cover in a state where the cover is attached to the wireless communication device; and the antenna in a state where the cover is attached to the wireless communication device. A memory for storing radio wave state log information indicating a record of the quality of the signal received from the wireless base station via a processor, and a processor for controlling the operation of the wireless communication device,
The program is stored in the processor.
Detecting the contact between the antenna and the contact based on a signal generated by the contact between the contact and the antenna;
Calculating the quality of the signal received by the wireless communication device from the wireless base station and holding it as the radio wave state log information in the storage unit;
When contact between the antenna and the contact is detected by the detecting step, the quality of the signal received from the radio base station is calculated by the acquisition unit, the calculated signal quality, and the radio wave state log information Determining whether the quality of the signal received from the radio base station has deteriorated by comparing the quality of the signal of the radio base station shown in FIG.
A program for performing a notification indicating a state of contact of the antenna with the contact point according to a determination result of the quality of the signal.

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