JP5533427B2 - Radio and computer program - Google Patents

Description

  The present invention relates to a radio apparatus employing digital voice communication and a computer program for realizing the function of the radio apparatus.

  In recent years, for example, in the world of amateur radio, digitization and networking of voice communication are becoming widespread in order to realize higher speed communication and enjoy communication with clear voice. In amateur radio digital voice communication, a voice signal is encoded, converted into a digital signal, packetized, and transmitted.

  And since voice signals are packetized and data indicating the destination, source call sign, etc. are added to the header of the packet, many functions that could not be achieved with analog voice communication can be realized. (For example, see Patent Document 1).

  One of the functions realized along with amateur radio digital voice communication is “reception history” (for example, Non-Patent Document 1). With this function, the call sign of the station that transmitted the radio signal or the called station can be confirmed for the radio signal received in the past.

  Furthermore, the “reception history” allows the user of the wireless device to confirm the call sign of the transmission source for the wireless signal received when he / she has left his / her seat, and can communicate with the transmission source station as necessary.

JP 2006-186816 A

Icom Co., Ltd. transceiver ID-92 manual (page 96)

  Since the above-described conventional “reception history” does not include information regarding the time at which the wireless signal was received, the user's desire to confirm the reception date and time could not be met.

  On the other hand, a wireless device employing digital voice communication can obtain information (latitude / longitude) on the position of the wireless device by connecting a GPS receiver. This information includes information (year / month / day / time) related to the time when the latitude and longitude are measured. Therefore, if a personal computer installed with software for reading time information is connected to the wireless device, the “reception history” including the time information can be displayed on the screen of the personal computer.

  However, it is inconvenient to connect and use a wireless device and a personal computer. Particularly in the case of a portable wireless device, it is difficult to connect and use a personal computer.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a radio device that can easily realize a “reception history” including time information without connecting an external device such as a personal computer.

Radio device according to the present invention for achieving the above object, reproduces the packet and demodulates the radio signal received to reproduce the analog audio signal by decoding and D / A conversion the audio signal included in the packet A radio,
A controller that extracts information about an identifier for identifying a transmission destination and a transmission source from the header part of the packet, and includes a controller that analyzes the content of the information about the identifier ,
Wherein the controller includes information regarding the identification of the wireless signal received, if available information about time from the outside, information about a time when it was created on the basis of the information regarding the time, receiving the no-line signal Are stored in the memory as history information,
According to the user's instruction input from the operation unit,
When information about the time at which the wireless signal is received is stored in the memory, information about the identifier and information about the time at the time of receiving the wireless signal are displayed on the screen of the display unit,
When the information regarding the time when the wireless signal is received is not stored in the memory, the information regarding the identifier and the information indicating the elapsed time from the time when the wireless signal is received are displayed on the screen of the display unit. A wireless device characterized by

  Here, it is preferable that the information regarding the time which can be obtained from the outside is extracted from the output signal of the GPS receiver. Moreover, it is preferable that the information regarding the identifier and the information regarding the time when the wireless signal is received are stored in a nonvolatile memory.

A computer program according to the present invention includes a computer,
A computer program that extracts information related to an identifier for identifying a transmission destination and a transmission source from a header portion of a packet including an A / D-converted encoded audio signal and functions as a controller that analyzes the content of the information related to the identifier. ,
Wherein the controller includes information regarding the identification of the wireless signal received, if available information about time from the outside, information about a time when it was created on the basis of the information regarding the time, receiving the no-line signal Are stored in the memory as history information,
According to the user's instruction input from the operation unit,
When information about the time at which the wireless signal is received is stored in the memory, information about the identifier and information about the time at the time of receiving the wireless signal are displayed on the screen of the display unit,
When the information regarding the time when the wireless signal is received is not stored in the memory, the information regarding the identifier and the information indicating the elapsed time from the time when the wireless signal is received are displayed on the screen of the display unit. It is characterized by that.

  In the wireless device of the present invention, the “reception history” includes information related to time, and therefore it is possible to easily confirm when the wireless signal is received by the “reception history” displayed on the screen.

  In particular, when the time information can be extracted from the output of the GPS receiver, the time information including the date is included in the “reception history”, so that the accurate reception time can be confirmed.

  On the other hand, if a GPS receiver is not connected to the radio, or if time information cannot be extracted from the output even if it is connected, the elapsed time from the time when the radio signal was received is included in the “Reception History” The elapsed time is displayed together with the call sign and the like. As a result, it is possible to check how much time has elapsed since the reception of the radio signal, and thus it is possible to sufficiently meet the user's desire to check the reception time.

It is a block diagram which shows the structure of the radio | wireless machine concerning embodiment of this invention. It is a figure which shows the structure of the packet transmitted with a radio | wireless machine. It is the figure which showed an example of the data contained in "reception history" as a table. It is the figure which showed the example of the "reception history" displayed on the screen of a display part. It is a flowchart explaining the procedure at the time of creating a "reception history".

  Hereinafter, a wireless device according to an embodiment of the present invention will be described with reference to the drawings.

<Configuration of radio>
FIG. 1 shows a configuration of a wireless device according to the present embodiment that employs digital voice communication. The wireless device 1 includes a microphone 11, a speaker 12, an AF amplifier 13, an audio codec 14, a transmission unit 15, a transmission / reception switching unit 16, an antenna 17, a reception unit 18, an interface unit 19, a controller 21, an operation unit 26, and a display unit 28. It is configured. In the figure, thick arrows indicate the flow of audio signals and data, and thin arrows indicate the flow of signals in the control system.

  The microphone 11 receives the sound for transmission as an input, generates an analog sound signal, and outputs the sound signal to the AF amplifier 13. On the other hand, the speaker 12 converts the analog audio signal output from the AF amplifier 13 into audio.

  The AF (Audio Frequency) amplifier 13 amplifies the analog audio signal input from the microphone 11 and supplies it to the audio codec 14. Further, the analog audio signal of the received audio supplied from the audio codec 14 is amplified and output to the speaker 12.

  The audio codec 14 performs A / D (analog / digital) conversion and encoding on the analog audio signal supplied from the AF amplifier 13 and outputs the result to the transmission unit 15. The audio codec 14 decodes the digital audio signal supplied from the receiving unit 18, further D / A (digital / analog) converts it, and then outputs it to the AF amplifier 13.

  The transmission unit 15 attaches a wireless communication header to the digital audio signal supplied from the audio codec 14, and divides the digital audio signal based on an output of a PTT switch 27 described later, thereby generating a transmission packet shown in FIG. The transmission unit 15 further modulates a carrier wave with digital data constituting the packet, performs frequency conversion as necessary, and transmits the result from the antenna 17 via the transmission / reception switching unit 16. The packet configuration will be described in detail later with reference to FIG.

  The transmission / reception switching unit 16 guides the transmission signal from the transmission unit 15 to the antenna 17 when the PTT switch 27 is pressed and turns on, and guides the reception signal of the antenna 17 to the reception unit 18 when the PTT switch 27 is released and turns off. .

  The receiving unit 18 switches the reception frequency in accordance with an instruction from the controller 21, tunes to the reception frequency and amplifies it, further demodulates the reception signal and reproduces the packet. Then, the header part is removed from the reproduced packet, the audio data is supplied to the audio codec 14, and the other data (for example, a packet conforming to Ethernet [registered trademark]) is supplied to the interface unit 19.

  The interface unit 19 is connected to the external connection terminal 20 and supplies a packet supplied from an external device such as a GPS receiver 29 to the transmission unit 15. The interface unit 19 supplies the packet supplied from the receiving unit 18 to an external device (such as a personal computer) via the external connection terminal 20.

  The controller 21 controls the operation of the wireless device 1. The controller 21 includes a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23 that stores a program that defines the operation of the CPU 22, a RAM (Random Access Memory) 24 that functions as a work memory for the CPU 22, and a “reception history”. A non-volatile memory 25 for storing the data.

  The operation unit 26 transmits various inputs and user instructions to the controller 21. The operation unit 26 includes a PTT (Pres To Talk) switch 27. When the PTT switch 27 is pressed (turned on), the transmission / reception switching unit 16 is switched to the transmission side and transmission is performed from the antenna 17, and when released (turned off), the transmission / reception switching unit 16 is switched to the reception side and received. The audio signal is played back.

  The display unit 28 is composed of a liquid crystal display or the like, and is used to display various data. The screen of the display unit 28 displays that the wireless device 1 has received an amateur radio signal (that there has been a call), the call sign of the transmission source (own station) and the transmission destination (partner station), nickname, etc. The

  Next, an amateur radio system using the radio device 1 of FIG. 1 will be briefly described. In this system, a repeater is installed for each area that covers a plurality of wireless devices 1, and voice and data are transmitted in a multiplexed state using adjacent microwaves between adjacent repeaters. A service area connected by a plurality of repeaters is called a zone, and a plurality of zones are connected by the Internet via a gateway.

If the above-mentioned amateur radio system is used, various forms of communication as shown below can be realized.
(1) Direct communication between wireless devices 1 in each area (2) Communication via repeaters between wireless devices 1 in each area (3) Repeaters between wireless devices 1 in different areas in the same zone (4) Communication between the wireless devices 1 in different zones via the gateway and the Internet

<Packet configuration>
Next, the configuration of the packet generated by the transmission unit 15 will be described with reference to FIG. The packet configuration indicates how and in which order a series of digital voice communication data is transmitted together.

  The packet Pa is composed of a header part Ph and a data part Pd. The header part Ph includes a synchronization signal h1, a flag h2, a call sign h3 of a destination repeater, a call sign h4 of a source repeater, a destination call sign h5, and a source call sign h6.

  The synchronization signal h1 in the header part Ph is a signal indicating that the input signal is synchronized and is a signal. The flag h2 is data representing repeater communication, direct communication, a repeater control signal, and the like, and is composed of data of a plurality of bits.

  The call sign h3 of the destination repeater is, for example, the call sign of the repeater in the area to which the transmission destination radio belongs, and the call sign h4 of the transmission source repeater is the call sign of the repeater to which the transmission source radio belongs. The transmission destination call sign h5 is the call sign of the transmitting station radio, and the transmission source call sign h6 is the call sign of the local station radio. These call signs (h3 to h6) serve as identifiers for identifying transmission destinations and transmission source radio apparatuses, as well as repeaters that relay radio signals. The destination call sign h5 may be a CQ that calls an unspecified station.

  In the data portion Pd, digitized audio frames d1 and data frames d2 including data such as small still images and memos are alternately arranged, and finally an end frame d3 indicating the end of the packet is added.

<Amateur radio communication operation>
Next, an amateur radio communication operation will be described with reference to FIGS. Hereinafter, as a typical case, a case where a station of the wireless device 1a in an arbitrary area calls a station of the wireless device 1b in a different area will be described.

  Prior to communication, the user operates the operation unit 26 of the wireless device 1a to store information necessary for communication, for example, the call sign of the transmission source (own station) and the transmission repeater in the nonvolatile memory 25. deep.

  First, the user operates the operation unit 26 of the wireless device 1a, designates a call sign assigned in advance to the wireless device 1b of the transmission destination and a call sign of the transmission destination repeater, and instructs the calling.

  Information input from the operation unit 26 is notified to the transmission unit 15 by the controller 21, and a packet is generated by the transmission unit 15 in accordance with an instruction from the controller 21. As shown in FIG. 2, in the header part Pd of the packet Pa, the call sign h3 of the destination repeater, the call sign h4 of the source repeater, the call sign h5 of the wireless device 1b which is the transmission destination (the partner station), and the transmission source Each information of the call sign h6 of the wireless device 1a which is (own station) is included.

  The packet generated by the transmission unit 15 and converted into a radio signal is transmitted via the transmission / reception switching unit 16 and the antenna 17. The packet transmitted from the wireless device 1a is relayed by the repeater on the designated route and reaches the wireless device 1b.

  The radio signal received by the radio device 1b is supplied to the receiving unit 18 via the antenna 17 and the transmission / reception switching unit 16, and demodulated by the receiving unit 18 to reproduce the packet. Further, the header part is removed from the packet reproduced by the receiving unit 18 and supplied to the voice codec 14 or the interface unit 19 according to the contents of the data part.

  The audio data supplied to the audio codec 14 is decoded, further converted into an analog audio signal, and supplied to the AF amplifier 13. The audio signal amplified by the AF amplifier 13 is output from the speaker 12 to reproduce the voice of the transmission source user.

  The packet reproduced by the receiving unit 18 is supplied to the controller 21. The CPU 22 of the controller 21 determines whether the received packet is a valid packet by ECC (Error Check Code) check or the like.

  The CPU 22 stores the data of the header part of the packet determined to be valid in the RAM 24 and analyzes the information of the header part. The CPU 22 displays the transmission destination call sign and the transmission source call sign of the received packet on the display unit 28 based on the analysis result.

<Data included in “Reception history”>
Next, data included in the “reception history” will be described with reference to FIG. The table Ta in FIG. 3 shows an example of data included in the “reception history”, and these data are stored in the nonvolatile memory 25 of the controller 21. On the other hand, the table Tb shows an example of the count number of the counter corresponding to each “reception history” of the table Ta and the timekeeping flag, and these data are stored in the RAM 24.

  The table Ta includes three types of data D1 to D3. Data D1 indicates the order of reception, and a smaller number is assigned to an older history.

  Data D2 is a call sign and a message. As described above with reference to FIG. 2, the header part Ph of the received packet Pa includes the call sign h3 of the destination repeater, the call sign h4 of the source repeater, the destination call sign h5, and the source call sign h6. ing. These call signs are included in the data D2. In addition to the call sign, the data D2 includes a message in the data frame d2 of the packet Pa.

  The “reception history” described in Non-Patent Document 1 described above includes information of data D1 and D2, but the “reception history” of the present invention further includes time information data D3. The time information is information including the date and time, such as “2010/6/10 15:10” shown in the first row of the table Ta.

  When the GPS receiver 29 is connected to the external connection terminal 20 (see FIG. 1) of the wireless device 1 and the interface unit 19 receives a packet including the GPS sentence, the time information is read from the GPS sentence and is nonvolatile. Stored in the memory 25.

  The GPS sentence output from the GPS receiver 29 includes time information (year / month / day and time) at the time of measuring the latitude / longitude as well as information on the latitude / longitude. The controller 21 extracts these pieces of information from the packet of the GPS sentence received by the interface unit 19 and displays the latitude / longitude information on the display unit 28 according to the user's instruction input to the operation unit 26, and time information (year The date and time) are stored in the nonvolatile memory 25.

  On the other hand, if the GPS receiver 29 is not connected to the external connection terminal 20 or if the interface unit 19 cannot receive a packet including a GPS sentence even if it is connected, the time information cannot be obtained. As shown in the second and fourth lines, data indicating that there is no time information is stored in the nonvolatile memory 25.

  In the present invention, in such a case, the elapsed time from the time when the radio signal is received by the receiving unit 18 is counted, and the elapsed time is added to the “reception history” as shown in the table Tb.

  Specifically, the controller 21 starts the operation of the built-in counter when receiving a radio signal from another station. If D3 of the table Ta includes “None” data, the flag of the data D5 of the table Tb is set to “1” indicating that the time is being measured, and the counter of the counter is added to the data D4. Stores a number. In the present embodiment, since the counter is counted up every 3 seconds, the count value “600” in the third row of the data D4 in the table Tb indicates that 30 minutes have elapsed since the reception of the radio signal. Yes.

  As described above, when the data D3 of the table Ta includes information related to the date and time, the information is included in the “reception history”. On the other hand, when the information “None” is included in the data D3, the information indicating the elapsed time from the reception time counted by the counter is included in the “reception history”.

  In the present embodiment, the time information is extracted from the GPS receiver 29. However, instead of the GPS receiver 29, a radio clock is connected to the external connection terminal 20, and the time information is extracted from the radio clock. Good. In this case, it is necessary to include time information in the packet output from the radio timepiece.

  In addition, once the information about the time is obtained from the GPS receiver 29, the information is combined with the counting operation of the counter described above, a pseudo timer is generated in the controller 21, and the time when the radio signal is received is obtained. The timer may be used for calculation.

  Furthermore, when the GPS receiver 29 is connected to the external connection terminal 20 while the elapsed time is being counted by the counter and a packet including a GPS sentence can be received, the counting starts from the time included in the GPS sentence. It is also possible to calculate the time at which the radio signal is received by calculating back the count value of the counter, that is, the elapsed time, and store the time in the nonvolatile memory 25 as the data D3 of the table Ta.

<Display example of “Reception history”>
FIG. 4 shows an example of “reception history” displayed on the screen of the display unit 28. FIG. 4A is an example when the time information is included in the data D3 of the table Ta, and FIG. 4B is an example when the time information is not included in the data D3.

  When the user wants to view the “reception history”, if the operation unit 26 is operated to display the reception history, the controller 21 causes the table Ta data stored in the nonvolatile memory 25 and the table Tb stored in the RAM 24 to be displayed. And the “reception history” is displayed on the screen of the display unit 29.

  As shown in FIG. 4A, when the time information is included in the data D3 of the table Ta, the call sign is displayed on the screen P1 on the first page, and the reception time is displayed on the screen P2 on the second page. The The user can switch the screen of the display unit 28 from P1 to P2 and from P2 to P1 by the operation of the operation unit 26 as indicated by an arrow.

  In the screen P1, “RX CALL SIGN” in the upper row indicates that “Reception History” is displayed. “CALLER” indicates the call sign of the transmission source, “CALLED” indicates the call sign of the transmission destination, “RXRPT1” indicates the call sign of the transmission source repeater, and “RXRPT2” indicates the call sign of the transmission destination repeater. On the other hand, on the screen P2, “YEAR” indicates the year, “DATE” indicates the date, and “TIME” indicates the time.

  As shown in FIG. 4B, when the time information is not included in the data D3 of the table Ta, the display content of the screen P1 of the first page is not changed, but the screen P2 of the second page is displayed from the time of signal reception. The elapsed time is displayed. On the screen P2, (−0.30) displayed in the “TIME” section indicates that 30 minutes have elapsed since the signal reception.

  As described above, in the wireless device 1 according to the present embodiment, since information related to time is included in the “reception history”, it is easy to check when the received wireless signal is based on the content of the display screen P2. it can.

  In particular, when the time information can be extracted from the output of the GPS receiver 29, the time information including the date is displayed on the display screen P2, so that the accurate reception time can be confirmed.

  Further, when the GPS receiver is not connected or when the time information cannot be taken out from the output even if the GPS receiver is connected, the elapsed time from the reception of the radio signal is displayed on the display screen P2. As a result, it is possible to easily check how much time has elapsed since the reception of the radio signal, so that it is possible to sufficiently meet the user's desire to check the reception time.

  In addition, the display form shown in FIG. 4 is an example, and is not limited to this. For example, when the display screen is small, each display item may be displayed on the screen.

<Procedure for creating "Received history">
Next, a procedure for creating a “reception history” will be described with reference to the flowchart of FIG.

  As a pre-stage of the processing shown in FIG. 5, it is necessary to perform a series of processing including demodulation of the received signal and packet reproduction in the receiving unit 18, but since these processing have already been described, description thereof will be omitted.

  The controller 21 stores the data of the packet Pa reproduced by the receiving unit 18 in the RAM 24 (step S11) and analyzes the information of the header part Ph (step S12).

  The controller 21 determines from the call sign information included in the header part Ph whether or not the packet has the same transmission route as the packet received before stored in the RAM 24, and the transmission route is the same (step S13). Yes), the history corresponding to the previously received packet is discarded (erased) (step S14), and the process proceeds to step S15. On the other hand, if the packet received this time is different in transmission route from the previously received packet (No in step S13), the process proceeds to step S15 as it is.

  The process in step S13 assumes a case where communication is repeatedly performed with the same partner station. In such a case, only the latest received data is stored in the “reception history”.

  Next, the controller 21 checks whether or not time information exists (step S15). When the GPS receiver 29 is connected to the external connection terminal 20 and the interface unit 19 receives a packet including a GPS sentence and the controller 21 can extract time information from the GPS sentence (Yes in step S16), the GPS sentence is received. The controller 21 writes the extracted time information in the nonvolatile memory 25 together with the call sign and the message as the time when the wireless signal is received (step S17).

  On the other hand, if the GPS receiver 29 is not connected to the external connection terminal 20 or the time information cannot be extracted even if it is connected (No in step S16), the controller 21 displays the call sign and the message in a non-volatile manner. After writing in the memory 25 (step S18), the process proceeds to step S19.

  The controller 21 clears the value of the built-in counter and sets “1” in the timekeeping flag (step S19), and then executes the count operation (step S20).

  The controller 21 determines whether or not the count number exceeds a predetermined number. If the predetermined number is not exceeded (No in step S21), the controller 21 continues counting (step S20). (Yes in step S21), the timekeeping flag is cleared (step S22), and the “reception history” creation process is terminated.

  The reason why the process of step S21 is performed will be described. When the count number exceeds a predetermined number, the count is continued unless the timekeeping flag is cleared. However, if the power is continuously turned on for more than 2 days, the meaning of displaying the elapsed time is diminished, and the range that can be counted is limited. Control consumption.

  As described above, in the wireless device 1 according to the present invention, since information related to time is included in the “reception history”, the contents of the “reception history” are displayed on the display unit 28, so It can be confirmed whether it is a signal. Furthermore, even if time information is not available from the outside, the elapsed time from the time when the wireless signal was received, which is counted by the counter, is displayed on the screen, so how much time has passed since the reception of the wireless signal. Can be easily confirmed.

  In the above-described embodiment, the data included in the table Ta is stored in the nonvolatile memory 25 so that the data is not lost when the power of the wireless device 1 is off. However, the data is stored in the RAM backed up by the battery. You may make it do.

  Further, a program for causing a computer to execute the function of the controller 21 of the above-described embodiment may be recorded on a recording medium (for example, a CD-ROM) and distributed, or distributed over a network. The computer program is recorded and installed on a computer recording medium.

DESCRIPTION OF SYMBOLS 1 Radio | wireless machine 11 Microphone 12 Speaker 13 AF amplifier 14 Audio | voice codec 15 Transmission part 16 Transmission / reception switching part 17 Antenna 18 Reception part 19 Interface part 21 Controller 22 CPU
23 ROM
24 RAM
25 Non-volatile memory 26 Operation unit 27 PTT switch 28 Display unit Pa packet Ph Head unit Pd Data unit Ta, Tb table D1-D5 data

Claims (4)

Play the packets by demodulating the received radio signal, a radio for reproducing analog audio signals by decoding and D / A conversion the audio signal included in the packet,
A controller that extracts information about an identifier for identifying a transmission destination and a transmission source from the header part of the packet, and includes a controller that analyzes the content of the information about the identifier ,
Wherein the controller includes information regarding the identification of the wireless signal received, if available information about time from the outside, information about a time when it was created on the basis of the information regarding the time, receiving the no-line signal Are stored in the memory as history information,
According to the user's instruction input from the operation unit,
When information about the time at which the wireless signal is received is stored in the memory, information about the identifier and information about the time at the time of receiving the wireless signal are displayed on the screen of the display unit,
When the information regarding the time when the wireless signal is received is not stored in the memory, the information regarding the identifier and the information indicating the elapsed time from the time when the wireless signal is received are displayed on the screen of the display unit. A wireless device characterized by   The wireless device according to claim 1, wherein the information regarding the time available from the outside is extracted from an output signal of a GPS receiver.   The wireless device according to claim 1 or 2, wherein the information about the identifier and the information about the time when the wireless signal is received are stored in a nonvolatile memory. Computer
A computer program that extracts information related to an identifier for identifying a transmission destination and a transmission source from a header portion of a packet including an A / D-converted encoded audio signal and functions as a controller that analyzes the content of the information related to the identifier. ,
Wherein the controller includes information regarding the identification of the wireless signal received, if available information about time from the outside, information about a time when it was created on the basis of the information regarding the time, receiving the no-line signal Are stored in the memory as history information,
According to the user's instruction input from the operation unit,
When information about the time at which the wireless signal is received is stored in the memory, information about the identifier and information about the time at the time of receiving the wireless signal are displayed on the screen of the display unit,
When the information regarding the time when the wireless signal is received is not stored in the memory, the information regarding the identifier and the information indicating the elapsed time from the time when the wireless signal is received are displayed on the screen of the display unit. A computer program characterized by the above.

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