JP5860623B2 - Wireless communication device - Google Patents

Wireless communication device Download PDF

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JP5860623B2
JP5860623B2 JP2011159158A JP2011159158A JP5860623B2 JP 5860623 B2 JP5860623 B2 JP 5860623B2 JP 2011159158 A JP2011159158 A JP 2011159158A JP 2011159158 A JP2011159158 A JP 2011159158A JP 5860623 B2 JP5860623 B2 JP 5860623B2
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wireless communication
switch
communication device
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instruction
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JP2013026790A5 (en
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板垣 毅
毅 板垣
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Hitachi Kokusai Electric Inc
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本発明は、無線通信機のソフトウェアを高速に起動する技術に関する。   The present invention relates to a technique for starting up software of a wireless communication device at high speed.

昨今、無線通信機等に代表される装置における組み込みソフトウェアは、複雑かつ多機能化しており、これに伴い、装置に組み込まれるソフトウェアの規模も増加の一途を辿っている。このため、OS(Operating System)を含むソフトウェアを起動させ、所望(アプリケーション等)のソフトウェアを動作させるまでには少なくとも数秒程度の起動時間が必要であるのが一般的である。   In recent years, embedded software in devices typified by wireless communication devices and the like has become complicated and multifunctional, and along with this, the size of software incorporated in devices has been steadily increasing. For this reason, it is general that a startup time of at least several seconds is required before starting up software including an OS (Operating System) and operating desired software (such as an application).

高速に起動させる方法の一例として、FROM(Flash Memory)上にソフトウェアを格納し、プログラムコードはFROM上で動作させ、ソフトウェアが動作する上で必要なスタックやワークバッファ等の領域を必要最低限の動的動作メモリであるSRAM(Static Random Access Memory)上に展開する方法がある。
しかしながら、上記の方法が適用されるケースとしては、FROMやSRAMの容量及び装置の機能上、比較的小規模のソフトウェアで適用される場合が多い。
As an example of a high-speed startup method, software is stored on FROM (Flash Memory), program code is operated on FROM, and areas such as stack and work buffer necessary for software operation are minimized. There is a method of developing on a static random access memory (SRAM) which is a dynamic operation memory.
However, as a case where the above method is applied, it is often applied with relatively small software due to the capacity of the FROM or SRAM and the function of the apparatus.

一方、冒頭で述べたような多機能なソフトウェア(UserInterface等のアプリケーションを含む)を装置に組み込む場合には、特にソフトウェアが動作する上で必要なスタックやワークバッファ等の領域の容量が数MByteから数十MByte単位で必要なことが多い。本領域は、用途やアクセス速度を考慮すると、RAM(Random Access Memory)に割り当てるのが一般的であるが、当該領域は装置起動時には不定領域(メモリの値が保障されていない領域)のため、ゼロクリア等の初期化処理を行うのが一般的である。この初期化処理時間が、ソフトウェアの多機能化に伴って増加するにつれて、必要以上の装置起動時間を要する主な原因となっている。   On the other hand, when multifunctional software (including applications such as UserInterface) as described at the beginning is incorporated in the apparatus, the capacity of areas such as a stack and a work buffer required for operating the software is several megabytes. Often required in units of tens of MBytes. This area is generally assigned to RAM (Random Access Memory) in consideration of usage and access speed. However, this area is an indefinite area (an area where the memory value is not guaranteed) when the device is started. An initialization process such as zero clear is generally performed. As this initialization processing time increases with the increase in the number of functions of software, it is a main cause that requires more device startup time than necessary.

特開2011−71703号公報JP 2011-71703 A

近年、特に公共無線等の社会インフラ分野においても無線通信機が多く用いられるケースがあるが、多機能化と共に起動時間に関しても従来技術同等の高速起動が求められる場合が多い。例えば、災害発生時に災害現場等に赴いて作業する者(消防隊員など)に携帯される非常時用の無線通信機は、平常時は電源をオフにした状態で所定の保管場所に保管され、災害現場等への出動時に持ち出されて電源をオンにして使用される。
このように、社会インフラ分野における無線通信機は、非常時に使用するのが一般的であるため、使用したいときには直ちに無線通信を行える状態になることが重要視され、これを可能にする技術が望まれている。
In recent years, wireless communication devices are often used particularly in the field of social infrastructure such as public wireless, but in many cases, high-speed startup equivalent to the conventional technology is required with regard to startup time as well as multifunctionalization. For example, an emergency wireless communicator that is carried by a person who visits a disaster site (fire brigade, etc.) when a disaster occurs is stored in a predetermined storage location with the power off during normal times. It is taken out at the time of dispatch to a disaster site etc. and used with the power turned on.
As described above, since a wireless communication device in the social infrastructure field is generally used in an emergency, it is important to be ready to perform wireless communication immediately when it is desired to be used, and a technology that enables this is desired. It is rare.

本発明は、上記従来の事情に鑑みて為されたものであり、無線通信機の機能(特に無線通信機能)を速やかに使用可能な状態にする技術を提案することを目的とする。   The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to propose a technique for quickly enabling a function (particularly, a wireless communication function) of a wireless communication device.

上記目的を達成するため、本発明では、無線通信機を次のような構成とした。
すなわち、無線により他の装置と通信を行う無線通信機において、メモリ上に展開されたソフトウェアをプロセッサが実行することにより実現される無線通信機能と、当該無線通信機の電源投入の指示を受け付ける第1スイッチと、前記無線通信機能の起動の指示を受け付ける第2スイッチと、前記第1スイッチにより前記電源投入の指示を受け付けたことに応じて、前記メモリ上に前記ソフトウェアを展開し、更に、前記第2スイッチにより前記起動の指示を受け付けたことに応じて、前記ソフトウェアを前記プロセッサに実行させて前記無線通信機能を起動する制御手段と、を備えた。
In order to achieve the above object, in the present invention, the wireless communication device has the following configuration.
That is, in a wireless communication device that communicates with other devices wirelessly, the wireless communication function realized by the processor executing the software deployed on the memory and the instruction to turn on the wireless communication device 1 switch, a second switch for receiving an instruction to start the wireless communication function, and in response to receiving the power-on instruction by the first switch, the software is expanded on the memory, and Control means for causing the processor to execute the software and activating the wireless communication function in response to receiving the activation instruction by a second switch.

本発明に係る無線通信機によれば、例えば、平常時には電源を投入し無線通信機能は停止した状態で保管しておき、非常時には無線通信機能を起動して使用する運用とすることで、無線通信機の機能(無線通信機能)を速やかに使用可能な状態にすることができる。   According to the wireless communication device according to the present invention, for example, the wireless communication function is stored in a state where the power is turned on and the wireless communication function is stopped in a normal state, and the wireless communication function is activated and used in an emergency. The function of the communicator (wireless communication function) can be quickly made available.

本発明の一実施形態に係る無線通信機の外観を例示する図である。It is a figure which illustrates the external appearance of the radio | wireless communication apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る無線通信機におけるロータリスイッチの外観を例示する図である。It is a figure which illustrates the external appearance of the rotary switch in the radio | wireless communication apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る無線通信機の機能ブロックを例示する図である。It is a figure which illustrates the functional block of the radio | wireless communication apparatus which concerns on one Embodiment of this invention. 無線通信機の起動時に実行される起動処理1(OS起動処理)の処理フローを例示する図である。It is a figure which illustrates the processing flow of the starting process 1 (OS starting process) performed at the time of starting of a wireless communication apparatus. 無線通信機の起動時に実行される起動処理2(ソフトウェア起動処理)の処理フローを例示する図である。It is a figure which illustrates the processing flow of the starting process 2 (software starting process) performed at the time of starting of a wireless communication apparatus. 従来方式に係る無線通信機の起動時の処理フローを例示する図である。It is a figure which illustrates the processing flow at the time of starting of the radio | wireless communication apparatus which concerns on a conventional system. 本発明の一実施形態に係る無線通信機の起動時の処理フローを例示する図である。It is a figure which illustrates the processing flow at the time of starting of the radio | wireless communication apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る無線通信機のスイッチ状態と装置状態との関係を例示する図である。It is a figure which illustrates the relationship between the switch state and apparatus state of the radio | wireless communication apparatus which concerns on one Embodiment of this invention.

本発明の一実施形態に係る無線通信機について図面を参照して説明する。なお、以下に例示する無線通信機に本発明を限定するものではなく、また、その中で説明されている特徴の組み合わせの全てが本発明に必須であるわけではない。   A wireless communication device according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that the present invention is not limited to the wireless communication apparatus exemplified below, and not all combinations of features described therein are essential to the present invention.

図1には、本発明の一実施形態に係る無線通信機1の外観を例示してある。
ここで、本例の無線通信機1の具体的な説明に先立って、本例の無線通信機1の用途などについて説明しておく。
本例の無線通信機1は、社会インフラ分野での情報伝達や情報共有などを目的とした使用を想定したものである。具体的には、例えば、指令端末装置、回線制御装置、基地局装置などと共に無線通信システムを構成し、無線基地局の通信圏内において、他の操作端末(指令端末装置や他の無線通信機1)に入力された音声の信号を回線制御装置及び無線基地局を介して受信して音声出力することや、自端末に入力された音声の信号を回線制御装置及び無線基地局を介して他の操作端末へ送信して音声出力させることで、他者(指令端末装置の操作者や他の無線通信機1の操作者など)との通話などを実現する。
FIG. 1 illustrates an appearance of a wireless communication device 1 according to an embodiment of the present invention.
Here, prior to specific description of the wireless communication device 1 of the present example, the use of the wireless communication device 1 of the present example will be described.
The wireless communication device 1 of this example is assumed to be used for information transmission and information sharing in the social infrastructure field. Specifically, for example, a wireless communication system is configured together with a command terminal device, a line control device, a base station device, and the like, and other operation terminals (command terminal device and other wireless communication devices 1) are within the communication range of the wireless base station. The voice signal input to the terminal is received via the line control device and the radio base station to output the voice, and the voice signal input to the terminal is sent to the other via the line control device and the radio base station. By transmitting to the operation terminal and outputting the sound, a call with another person (such as an operator of the command terminal device or an operator of another wireless communication device 1) is realized.

本例の無線通信機1の具体的な用途としては、一例として、災害発生時に災害現場等に赴いて作業する者(消防隊員や市役所の職員など)との通話が挙げられる。このような用途の無線通信機1は、例えば、平常時は所定の保管場所に保管され、非常時(災害現場への出動時など)に持ち出されて使用される。そして、非常時には、直ちに他者との通話ができる状態(無線通信を行える状態)になることが求められるため、無線通信機能の起動を速やかに行えるように工夫してある。   As a specific application of the wireless communication device 1 of the present example, for example, a call with a person who visits and works at a disaster site or the like when a disaster occurs (a fire brigade member or a city hall staff member) can be cited. For example, the wireless communication device 1 for such an application is stored in a predetermined storage location during normal times and is taken out and used in an emergency (such as when dispatched to a disaster site). In an emergency, it is required to immediately be able to make a call with another person (a state in which wireless communication can be performed), so that the wireless communication function can be quickly activated.

本例の無線通信機1は、図1に示すように、筐体上部に、無線通信信号の送受信を行うアンテナ2、無線通信に使用するチャンネルの変更を指示する操作を受け付けるチャンネル変更部3、無線通信機能の起動状態(起動又は停止)の切り替えを指示する操作及び出力音量(ボリューム)の調整を指示する操作を受け付ける起動スイッチ兼ボリューム調整部4を備える。また、筐体左側面に、自装置を音声発信状態にすることを指示する操作を受け付けるPTT(Push To Talk)スイッチ5を備える。また、筐体前面に、バッテリの残量などの各種情報を表示するバッテリ残量表示部6、他の装置(統制台や他の無線通信機1)へ発信する音声を入力するマイク7、他の装置(統制台や他の無線通信機1)から受信した音声を出力するスピーカ8を備える。また、筐体右側面に、装置の主電源の投入状態(投入又は切断)の切り替えを指示する操作を受け付ける電源スイッチ9を備える。   As shown in FIG. 1, the wireless communication device 1 of the present example includes an antenna 2 that transmits and receives wireless communication signals, a channel changing unit 3 that receives an operation for instructing change of a channel used for wireless communication, An activation switch and volume adjustment unit 4 that receives an operation for instructing switching of an activation state (activation or stop) of the wireless communication function and an operation for instructing adjustment of an output volume (volume) is provided. In addition, a PTT (Push To Talk) switch 5 is provided on the left side surface of the housing for receiving an operation for instructing the device to be in a voice transmission state. Further, a battery remaining amount display unit 6 for displaying various information such as the remaining amount of the battery on the front surface of the housing, a microphone 7 for inputting a sound to be transmitted to another device (control table or other wireless communication device 1), and the like The speaker 8 which outputs the audio | voice received from the apparatus (control stand and other radio | wireless communication apparatus 1) is provided. Further, a power switch 9 is provided on the right side surface of the housing for receiving an operation for instructing switching of the main power on state (on or off) of the apparatus.

本例の無線通信機1は、電源スイッチ9の操作によって主電源がオン(投入)されても無線通信機能は起動されず、更に、起動スイッチ兼ボリューム調整部4が操作されることで無線通信機能が起動されるようにしてある。
ここで、主電源がオフ(切断)の状態を停止状態、主電源がオン(投入)で且つ無線通信機能が停止された状態を休止状態、主電源がオン(投入)で且つ無線通信機能が起動された状態を運用状態とすれば、平常時は休止状態で所定の保管場所に保管しておき、非常時に持ち出す際に運用状態に移行させるようにすることで、停止状態から休止状態への移行に要する時間を省略でき、運用状態への移行を速やかに行えるようになる。
The wireless communication device 1 of this example does not start the wireless communication function even when the main power is turned on (turned on) by operating the power switch 9, and further, the wireless communication function 1 is operated by operating the start switch / volume adjusting unit 4. The function is activated.
Here, the state where the main power is off (disconnected) is stopped, the state where the main power is on (turned on) and the wireless communication function is stopped, the state where the main power is turned on (turned on) and the wireless communication function is If the activated state is the operational state, it is normally stored in a predetermined storage location in the hibernation state, and when it is taken out in an emergency, it is shifted to the operational state, so that the stop state is changed to the hibernation state. The time required for the transition can be omitted, and the transition to the operation state can be performed promptly.

本例では、電源投入に使用する電源スイッチ9(電源投入用スイッチ)をプッシュ型、無線通信機能の起動に使用する起動スイッチ兼ボリューム調整部4(起動用スイッチ)をロータリスイッチ型としており、電源投入の指示に係る操作と起動の指示に係る操作とを操作者が容易に区別できるようにしてある。また、本例では、電源スイッチ9の押し下げ操作が所定時間以上続いた場合(長押しされた場合)に主電源のオン/オフ指示を確定することで、誤操作などによって主電源の投入状態が切り替わることを防止している。   In this example, the power switch 9 (power-on switch) used for power-on is a push type, and the start switch / volume adjustment unit 4 (start-up switch) used for starting a wireless communication function is a rotary switch type. The operator can easily distinguish between the operation related to the input instruction and the operation related to the start instruction. In this example, when the power switch 9 is pressed down for a predetermined time or longer (when the power switch 9 is pressed and held down), the main power on / off state is switched by an erroneous operation or the like by determining the main power on / off instruction. To prevent that.

図2(a)には、無線通信機1に起動スイッチ兼ボリューム調整部4として設けられたロータリスイッチの外観を例示してある。
本例のロータリスイッチには、無線通信機能を停止させる回転角度(図中の“OFF(通信)”の位置に合わせた回転角度)と、無線通信機能を起動させる回転角度(図中の“VOL”の範囲に合わせた回転角度)とが規定されており、ロータリスイッチの回転操作により、無線通信機能の停止と起動を切り替え可能(無線通信機能が起動された状態では、更に、ボリュームを調整可能)にしてある。
FIG. 2A illustrates an appearance of a rotary switch provided as a start switch / volume adjustment unit 4 in the wireless communication device 1.
The rotary switch of this example includes a rotation angle for stopping the wireless communication function (rotation angle in accordance with the position of “OFF (communication)” in the figure) and a rotation angle for starting the wireless communication function (“VOL in the figure”). "Rotation angle according to the range of""is specified, and the wireless communication function can be switched between stop and start by rotating the rotary switch (when the wireless communication function is activated, the volume can be further adjusted) ).

図2(b)には、他の例として、上記のロータリスイッチに、電源投入用スイッチの機能を更に設けた場合の外観を例示してある。
本例のロータリスイッチには、装置の主電源を切断する回転角度(図中の“OFF(電源)”の位置に合わせた回転角度)と、装置の主電源を投入し且つ無線通信機能を停止させる回転角度(図中の“OFF(通信)”の位置に合わせた回転角度)と、無線通信機能を起動させる回転角度(図中の“VOL”の範囲に合わせた回転角度)とが規定されており、ロータリスイッチの回転操作により、装置の主電源の切断と投入についても切り替え可能にしてある。この構成の場合には、上述したプッシュ型の電源スイッチ9を省略できる。
As another example, FIG. 2B illustrates an external appearance when the above-described rotary switch is further provided with a function of a power-on switch.
The rotary switch in this example turns off the main power of the device (rotation angle matched to the position of “OFF (power)” in the figure), and turns on the main power of the device and stops the wireless communication function. Rotation angle (rotation angle according to the position of “OFF (communication)” in the figure) and rotation angle to activate the wireless communication function (rotation angle according to the range of “VOL” in the figure) are defined. The main power supply of the apparatus can be switched off and on by rotating the rotary switch. In the case of this configuration, the push-type power switch 9 described above can be omitted.

このように、型式の異なる2つのスイッチを用いて電源投入用スイッチ及び起動用スイッチを構成する態様や、2段階以上の切り替えが可能な1つのスイッチを用いて電源投入用スイッチ及び起動用スイッチを構成する態様とすることができる。
なお、上記の説明で示した各種スイッチは一例であり、他の型式のスイッチを用いるようにしてもよいが、電源投入の指示に係る操作と起動の指示に係る操作とを操作者が識別可能であることが好ましい。
As described above, the power-on switch and the start-up switch are configured using two switches of different types, or the power-on switch and the start-up switch are configured using one switch that can be switched in two or more stages. It can be set as the aspect which comprises.
The various switches shown in the above description are merely examples, and other types of switches may be used, but the operator can identify the operation related to the power-on instruction and the operation related to the start-up instruction. It is preferable that

図3には、無線通信機1の機能ブロックを例示してある。
本例の無線通信機1は、各種演算処理を行うCPU(Central Processing Unit)11、無線通信に係るソフトウェア等を記憶したFROM12、CPU11の作業領域となるRAM13、無線通信に係る処理を行う通信処理部14、操作者から各種の操作入力を受け付けるキー入力部15、各種情報を表示出力する表示部16、無線通信機1の動作に必要な電力の供給源となる電源17、を備えている。
FIG. 3 illustrates functional blocks of the wireless communication device 1.
The wireless communication device 1 of this example includes a CPU (Central Processing Unit) 11 that performs various arithmetic processes, a FROM 12 that stores software related to wireless communication, a RAM 13 that is a work area of the CPU 11, and a communication process that performs processing related to wireless communication. 14, a key input unit 15 that receives various operation inputs from the operator, a display unit 16 that displays and outputs various types of information, and a power source 17 that is a power supply source necessary for the operation of the wireless communication device 1.

RAM13としては、例えば、SRAM、DRAM(Dynamic Random Access Memory)が用いられる。
通信処理部14としては、例えば、DSP(Digital Signal Processor)、FPGA(Field−Programmable Gate Array)が用いられる。本例では、無線通信に係るソフトウェアをCPU11により実行して通信処理部14を制御することで、無線通信機能を実現している。
キー入力部15としては、例えば、電源スイッチ9、起動スイッチ兼ボリューム調整部4、チャンネル変更部3、PTTスイッチ5が用いられる。なお、電源投入用スイッチ(電源スイッチ9)や起動用スイッチ(起動スイッチ兼ボリューム調整部4)を独立のスイッチ部としてもよい。
表示部16としては、例えば、バッテリ残量表示部6が用いられる。また、図1の例では省略してあるが、各種の情報画面を表示出力するLCD(Liquid Crystal Display)、無線通信機1の状態(停止状態/休止状態/運用状態)を示すLED(Light Emitting Diode)等も用いられる。
電源17としては、例えば、充電式電池が用いられる。
As the RAM 13, for example, an SRAM or a DRAM (Dynamic Random Access Memory) is used.
As the communication processing unit 14, for example, a DSP (Digital Signal Processor) or an FPGA (Field-Programmable Gate Array) is used. In this example, the wireless communication function is realized by executing software related to wireless communication by the CPU 11 and controlling the communication processing unit 14.
As the key input unit 15, for example, a power switch 9, a start switch / volume adjustment unit 4, a channel change unit 3, and a PTT switch 5 are used. The power-on switch (power switch 9) and the start switch (start switch / volume adjustment unit 4) may be independent switch units.
As the display unit 16, for example, the battery remaining amount display unit 6 is used. Although omitted in the example of FIG. 1, an LCD (Liquid Crystal Display) that displays and outputs various information screens, and an LED (Light Emitting) that indicates the state (stopped state / suspended state / operating state) of the wireless communication device 1. Diode) and the like are also used.
For example, a rechargeable battery is used as the power source 17.

本例の無線通信機1の起動動作を、従来方式の無線通信機の起動動作と対比しつつ説明する。
図4には、本例の無線通信機1及び従来方式の無線通信機の起動時において共通に実行される起動処理1(OS起動処理)の処理フローを例示してある。
図5には、本例の無線通信機1及び従来方式の無線通信機の起動時において共通に実行される起動処理2(ソフトウェア起動処理)の処理フローを例示してある。
図6には、従来方式に係る無線通信機の起動時の処理フローを例示してある。
図7には、本例の無線通信機1の起動時の処理フローを例示してある。
The activation operation of the wireless communication device 1 of this example will be described in comparison with the activation operation of a conventional wireless communication device.
FIG. 4 illustrates a processing flow of startup processing 1 (OS startup processing) that is executed in common when the wireless communication device 1 of this example and the wireless communication device of the conventional method are started up.
FIG. 5 illustrates a processing flow of start processing 2 (software start processing) that is executed in common when the wireless communication device 1 of this example and the wireless communication device of the conventional method are started.
FIG. 6 illustrates a processing flow at the time of activation of the wireless communication apparatus according to the conventional method.
FIG. 7 illustrates a processing flow when the wireless communication device 1 of this example is activated.

まず、起動処理1(OS起動処理)及び起動処理2(ソフトウェア起動処理)について説明しておく。
起動処理1(OS起動処理)では、図4に示したように、CPU11による制御の下で、RAM13の領域の初期化を行い(ステップS11)、FROM12に格納されているプログラムをRAM13に展開し(ステップS12)、スタックやワークバッファ等の領域をRAM13に展開及び初期化し(ステップS13)、OSを初期化及び起動する(ステップS14)。
First, boot processing 1 (OS boot processing) and boot processing 2 (software boot processing) will be described.
In the boot process 1 (OS boot process), as shown in FIG. 4, the area of the RAM 13 is initialized under the control of the CPU 11 (step S11), and the program stored in the FROM 12 is expanded in the RAM 13. (Step S12), an area such as a stack or a work buffer is expanded and initialized in the RAM 13 (Step S13), and the OS is initialized and started (Step S14).

起動処理2(ソフトウェア起動処理)では、図5に示したように、CPU11による制御の下で、FROM12からRAM13に展開された所望のプログラム(例えば、無線通信に係るソフトウェアのプログラム)を起動し(ステップS21)、表示部16に待ち受け画面を表示する(ステップS22)。これにより、無線通信機が運用状態となって無線通信機能を使用できるようになる。   In the activation process 2 (software activation process), as shown in FIG. 5, under the control of the CPU 11, a desired program (for example, a software program related to wireless communication) developed from the FROM 12 to the RAM 13 is activated ( Step S21), a standby screen is displayed on the display unit 16 (Step S22). As a result, the wireless communication device becomes operational and the wireless communication function can be used.

従来方式の無線通信機における起動時の処理について、図6を参照して説明する。
従来方式では、電源投入用スイッチがON(主電源の投入)になると(ステップS31)、起動処理1(OS起動処理)及び起動処理2(ソフトウェア起動処理)を続けて実行する(ステップS32)。起動処理1,2の実行中は、起動中である旨を示す起動画面W11がLCDに表示され、起動処理1,2の実行後は、運用状態となって、通話の待ち受け状態である旨を示す待ち受け画面W12がLCDに表示される。また、運用状態の場合には、その旨を示すべくLEDを点灯させる。
The startup process in the conventional wireless communication device will be described with reference to FIG.
In the conventional method, when the power-on switch is turned on (main power is turned on) (step S31), the startup process 1 (OS startup process) and the startup process 2 (software startup process) are continuously executed (step S32). While the startup processes 1 and 2 are being executed, a startup screen W11 indicating that the startup process is being performed is displayed on the LCD, and after the startup processes 1 and 2 have been executed, the operation state is set to indicate that the call is waiting. A standby screen W12 is displayed on the LCD. In the operational state, the LED is lit to indicate that.

本例の無線通信機1における起動時の処理について、図7を参照して説明する。
本例方式では、電源投入用スイッチがON(主電源の投入)になると(ステップS41)、起動処理1(OS起動処理)を実行した後に(ステップS42)、CPU11を低消費電力モードへ移行する(ステップS43)。起動処理1の実行中は、起動中である旨を示す起動画面W21がLCDに表示され、起動処理1の実行後は、休止状態となって、LCDの表示が消去される(全消灯の画面W22となる)。また、休止状態の場合には、その旨を示すべく、LEDを表示させる。例えば、LEDの色を運用状態とは異ならせたり、或いは、LEDを比較的長い周期で点滅(例えば、点灯時間1秒、消灯時間10秒の繰り返し)させる。
Processing at startup in the wireless communication device 1 of this example will be described with reference to FIG.
In this example system, when the power-on switch is turned on (main power is turned on) (step S41), after executing the boot process 1 (OS boot process) (step S42), the CPU 11 is shifted to the low power consumption mode. (Step S43). While the startup process 1 is being executed, a startup screen W21 indicating that the startup process is being performed is displayed on the LCD, and after the startup process 1 is executed, the display enters the sleep state and the display on the LCD is erased (a screen that is completely off). W22). Moreover, in the case of a resting state, an LED is displayed to indicate that. For example, the color of the LED is made different from the operation state, or the LED is blinked with a relatively long cycle (for example, a lighting time of 1 second and a light-off time of 10 seconds are repeated).

その後(休止状態において)、起動用スイッチがON(無線通信機能の起動)になるとCPU11を低消費電力モードから復帰させて通常電力モードとし(ステップS44)、起動処理2(ソフトウェア起動処理)を実行する(ステップS45)。起動処理2の実行後は、運用状態となって、通話の待ち受け状態である旨を示す待ち受け画面W23がLCDに表示される。また、運用状態の場合には、その旨を示すべくLEDを点灯させる。なお、起動処理2の実行中に、その旨を示す画面をLCDに表示するようにしてもよいが、短時間で処理が終了するため本例では省略してある。
このような構成により、無線通信機1を休止状態で保管しておき、使用時には高速に起動して運用状態にして無線通信を行えるようにすることができる。
Thereafter (in the hibernation state), when the activation switch is turned on (activation of the wireless communication function), the CPU 11 is returned from the low power consumption mode to the normal power mode (step S44), and the activation process 2 (software activation process) is executed. (Step S45). After the start process 2 is executed, the standby state W23 indicating that the mobile phone is in an operating state and is in a standby state for a call is displayed on the LCD. In the operational state, the LED is lit to indicate that. While the start process 2 is being executed, a screen indicating that may be displayed on the LCD, but this is omitted in this example because the process is completed in a short time.
With such a configuration, the wireless communication device 1 can be stored in a dormant state, and can be activated at a high speed and used for wireless communication when in use.

なお、本例では、CPU11が低消費電力モードとなる休止状態では、DSPやFPGA等で構成される通信処理部14の起動は行わず、LCD非表示(全消灯)と合わせて装置全体の低消費電力化を行うようにしている。また、休止状態におけるソフトウェアの起動を最小限とすることで、CPU11への割り込み処理等が発生してCPU11の低消費電力モードが不用意に解除されてしまうことを抑制している。このため、本例によれば、運用状態において低消費電力モードとする場合と比べて、更なる低消費電力効果が見込まれる。   In this example, in the sleep state in which the CPU 11 is in the low power consumption mode, the communication processing unit 14 configured by a DSP, FPGA, or the like is not activated, and the entire apparatus is low in combination with LCD non-display (all off). Power consumption is reduced. Further, by minimizing the activation of the software in the hibernation state, it is possible to prevent the CPU 11 from being inadvertently released from the low power consumption mode due to an interrupt process to the CPU 11 or the like. For this reason, according to this example, the further low power consumption effect is anticipated compared with the case where it is set as the low power consumption mode in an operation state.

このように、本例の無線通信機1は、RAM13上に展開された無線通信に係るソフトウェアをCPU11が実行することにより実現される無線通信機能と、無線通信機1の電源投入の指示を受け付ける電源投入用スイッチ(電源スイッチ9)と、無線通信機能の起動指示を受け付ける起動用スイッチ(起動スイッチ兼ボリューム調整部4)とを備え、CPU11による制御の下で、電源投入用スイッチにより電源投入の指示を受け付けたことに応じて、メモリ上に無線通信に係るソフトウェアを展開し、更に、起動用スイッチにより起動指示を受け付けたことに応じて、無線通信に係るソフトウェアを実行して無線通信機能を起動するようにした。   As described above, the wireless communication device 1 of this example receives a wireless communication function realized by the CPU 11 executing software related to wireless communication developed on the RAM 13 and an instruction to turn on the wireless communication device 1. A power-on switch (power switch 9) and a start-up switch (start-up switch and volume adjusting unit 4) that accepts a start-up instruction for a wireless communication function are provided. In response to receiving the instruction, the software related to wireless communication is deployed on the memory, and in response to receiving the start instruction from the activation switch, the software related to wireless communication is executed to execute the wireless communication function. It started up.

ここで、本例の無線通信機1を使用する場合、操作者が起動用スイッチをONにすることにより、CPU11に対して割り込みが入り、低消費電力モードからCPU11が復帰した後に所望のソフトウェア(例えば、無線通信に係るソフトウェア)が起動される。なお、低消費電力からの復帰に要する時間は、CPU11の処理性能にも依存するが、μsのオーダで完了することが可能なため、無視できると考えてよい。   Here, when the wireless communication device 1 of this example is used, the operator interrupts the CPU 11 by turning on the activation switch, and the desired software (after the CPU 11 returns from the low power consumption mode) For example, software related to wireless communication is activated. Note that the time required for recovery from low power consumption depends on the processing performance of the CPU 11, but it can be considered negligible because it can be completed in the order of μs.

従来方式と本例方式について操作者から見た起動時間を比較すると、従来方式(停止状態からの通常起動)の場合には、起動処理1の実行と起動処理2の実行に要する時間T1であり、本例方式(休止状態からの高速起動)の場合には、起動処理2の実行に要する時間T2である。すなわち、これらの時間の差分は起動処理1の実行に要する時間であり、当該時間の分だけ起動時間を短縮することができる。   Comparing the startup time as viewed from the operator for the conventional method and the present method, in the case of the conventional method (normal start from the stopped state), it is the time T1 required to execute the startup process 1 and the startup process 2. In the case of this example method (high-speed activation from the hibernation state), this is the time T2 required to execute the activation process 2. That is, the difference between these times is the time required for executing the startup process 1, and the startup time can be shortened by the time.

ここで、本例方式の懸念点として、(1)低消費電力モードで待機することによるバッテリ消費の問題(実際に使用する際にバッテリ切れを起こして使用できない状態になっている可能性があること)、(2)再起動時に低消費電力モードで待機するまでに共通処理(起動処理1)分の時間を要する問題、などが挙げられる。
(1)については、充電しながら待機させる、大容量バッテリを用いる等の対処により解決を図ることができる。
(2)については、上述したような用途(例えば、災害発生時の緊急用)の無線通信機そのものの特性として、再起動を行う頻度が低いと考えられることから、使い勝手に大きな支障を及ぼす問題ではないといえる。
Here, as concerns of this example method, (1) battery consumption problem due to standby in the low power consumption mode (the battery may run out during actual use and may not be usable) (2) The problem that it takes time for the common process (start-up process 1) to stand by in the low power consumption mode at the time of restarting may be mentioned.
As for (1), the solution can be achieved by coping with waiting while charging or using a large capacity battery.
Regarding (2), it is considered that the frequency of restarting is considered to be low as a characteristic of the wireless communication device itself for the above-mentioned use (for example, emergency use at the time of disaster occurrence), and thus a problem that greatly impairs usability Not so.

図8には、本例の無線通信機1におけるスイッチ状態(電源投入用スイッチ及び起動用スイッチの状態)と装置状態の関係を例示してある。
本例の無線通信機1では、誤動作防止のため、電源投入用スイッチがOFF(主電源の切断)の場合には、起動用スイッチがON(無線通信機能の起動)となっても停止状態のままにして装置の起動を行わないようにする。電源投入用スイッチがON(主電源の切断)で起動用スイッチがOFF(無線通信機能の停止)の場合には休止状態とし、その後、起動用スイッチがON(無線通信機能の起動)となった場合に運用状態へ移行して無線通信機能を使用可能にする。
FIG. 8 illustrates the relationship between the switch state (the state of the power-on switch and the start-up switch) and the device state in the wireless communication device 1 of this example.
In the wireless communication device 1 of this example, in order to prevent malfunction, when the power-on switch is OFF (main power is cut off), the start-up switch is turned ON (wireless communication function is activated). Do not start the device. When the power-on switch is ON (main power is cut off) and the start-up switch is OFF (wireless communication function is stopped), it is put into a dormant state, and then the start switch is turned on (wireless communication function is started). In this case, the wireless communication function can be used by shifting to the operation state.

なお、電源投入用スイッチをONにしたときに起動用スイッチがONになっていれば、従来方式と同様に、起動処理1及び起動処理2が続けて実行される通常起動が行われる。すなわち、電源投入用スイッチがONになったことに応じて、ソフトウェアが動作する上で必要なスタックやワークバッファ等の領域をRAM13上に展開して初期化を行った後、所望のソフトウェアを動作させる。ここで、FROM12に格納されたプログラム領域をRAM13上へ展開させるかどうかは任意である。   If the activation switch is turned on when the power-on switch is turned on, the normal activation in which the activation process 1 and the activation process 2 are continuously performed is performed as in the conventional method. In other words, in response to the power-on switch being turned ON, the stack, work buffer, and other areas necessary for software operation are expanded and initialized on the RAM 13, and then the desired software is operated. Let Here, whether or not the program area stored in the FROM 12 is expanded on the RAM 13 is arbitrary.

以上のように、本例では、無線通信機の起動に係るスイッチとして2種類(或いは2段階)のスイッチを設けることで、停止状態(主電源が切断された状態)からの起動(通常起動)と休止状態(主電源が投入され且つ無線通信機能が停止された状態)からの起動(高速起動)の2種類の起動方法により、装置のソフトウェア(例えば、無線通信に係るソフトウェア)を起動できるようにした。   As described above, in this example, by providing two types (or two stages) of switches as activation switches for wireless communication devices, activation from a stopped state (main power is cut off) (normal activation) The device software (for example, software related to wireless communication) can be started by two types of startup methods (high-speed startup) from the sleep state (the state where the main power supply is turned on and the wireless communication function is stopped). I made it.

そして、電源投入用スイッチがON(起動用スイッチがOFF)の時点で、従来方式の起動時間でボトルネックとなっていた、ソフトウェアが動作する上で必要なスタックやワークバッファ等の領域をRAM上に展開して初期化する処理を行った後、CPUを低消費電力モードに移行させて休止状態とするようにした。なお、CPUの低消費電力モードには、CPUの種別や低消費電力モード自体にも種類があるが、低消費電力モードとして一律に扱うものとする(低消費電力モードの種類によって本発明の意義が損なわれるものではない)。   When the power-on switch is ON (start-up switch is OFF), the stack and work buffer areas required for software operation, which had become a bottleneck in the conventional startup time, are stored on the RAM. After performing the initializing and initializing process, the CPU is shifted to the low power consumption mode to be in a dormant state. The CPU low power consumption mode includes the CPU type and the low power consumption mode itself, but they are treated uniformly as the low power consumption mode (the significance of the present invention depends on the type of the low power consumption mode). Is not detrimental).

その後、操作者が無線通信機を使用する際に起動用スイッチをONにすることで、CPUの低消費電力モードが解除され、所望のソフトウェア(例えば、無線通信に係るソフトウェア)が順次起動される。ここで、所望のソフトウェアが起動する時間(高速起動に要する時間)は、CPUの処理性能やFRAMに格納されているプログラム容量にも依存するが、従来方式における起動時間(通常起動に要する時間)と比較すると大幅に短縮することが可能である。   Thereafter, when the operator turns on the activation switch when using the wireless communication device, the low power consumption mode of the CPU is released, and desired software (for example, software related to wireless communication) is sequentially activated. . Here, the startup time of the desired software (time required for high-speed startup) depends on the processing performance of the CPU and the program capacity stored in the FRAM, but the startup time in the conventional method (time required for normal startup). Can be significantly shortened compared to.

なお、従来からCPUを低消費電力モードへ移行させる種々の技術が提案されているが、それらの技術は装置が通常運用されている状態から移行させることでバッテリ駆動の長時間化を図るものであり、本例のように、装置の停止状態(無線通信に係るソフトウェアが停止された状態)から移行するものではない。
更に、本例では、(1)起動用スイッチのみがONの時点ではCPU以外のデバイス(例えば、図3の通信処理部14に実装)の起動及び動作処理を行わない、(2)消費電力が比較的大きい表示部(例えば、LCD)の表示を必要最小限にする、等を行うことで、休止状態(主電源が投入され且つ無線通信機能が停止された状態)における装置全体の低消費電力化を実現している。
Various technologies for shifting the CPU to the low power consumption mode have been proposed in the past, but these technologies are intended to increase the battery drive time by shifting the device from the normal operating state. Yes, as in this example, it does not shift from the stop state of the device (a state in which software related to wireless communication is stopped).
Further, in this example, (1) when only the activation switch is ON, devices other than the CPU (for example, mounted in the communication processing unit 14 in FIG. 3) are not activated and are not operated. (2) Power consumption Low power consumption of the entire device in a resting state (main power is turned on and the wireless communication function is stopped) by minimizing the display of a relatively large display unit (for example, LCD). Has been realized.

1:無線通信機、 2:アンテナ、 3:チャンネル変更部、 4:起動スイッチ兼ボリューム調整部、 5:PTTスイッチ、 6:バッテリ残量表示部、 7:マイク、 8:スピーカ、 9:電源スイッチ、 11:CPU、 12:FROM、 13:RAM、 14:通信処理部、 15:キー入力部、 16:表示部、 17:電源   1: wireless communication device, 2: antenna, 3: channel change unit, 4: start switch / volume adjustment unit, 5: PTT switch, 6: battery remaining amount display unit, 7: microphone, 8: speaker, 9: power switch 11: CPU, 12: FROM, 13: RAM, 14: communication processing unit, 15: key input unit, 16: display unit, 17: power supply

Claims (3)

無線により他の装置と通信を行う無線通信機において、
メモリ上に展開されたソフトウェアをプロセッサが実行することにより実現される無線通信機能と、
当該無線通信機の電源投入の指示を受け付ける第1スイッチと、
前記無線通信機能の起動の指示を受け付ける第2スイッチと、
前記第1スイッチにより前記電源投入の指示を受け付けたことに応じて、前記メモリ上に前記ソフトウェアを展開し、前記ソフトウェアが動作するための初期化処理を行った後、前記プロセッサを低消費電力モードに移行させ、更に、前記第2スイッチにより前記起動の指示を受け付けたことに応じて、前記プロセッサの低消費電力モードを解除して、前記ソフトウェアを前記プロセッサに実行させて前記無線通信機能を起動する制御手段と、
を備えたことを特徴とする無線通信機。
In a wireless communication device that communicates with other devices wirelessly,
A wireless communication function realized by a processor executing software expanded on a memory;
A first switch for receiving an instruction to turn on the wireless communication device;
A second switch for receiving an instruction to activate the wireless communication function;
In response to receiving the power-on instruction by the first switch, the software is expanded on the memory, and after the initialization process for operating the software is performed, the processor is put into a low power consumption mode. is shifted to, further, in response to reception of the instruction of the start by the second switch, to release the low power consumption mode of the processor, starting the wireless communication function to execute the software in the processor Control means to
A wireless communication device comprising:
前記無線通信機は、情報画面を表示する画面表示部と、当該無線通信機の状態を示すLEDと、を備え、
前記電源投入の指示に応じた処理の実行時は、当該無線通信機が起動中である旨を示す起動画面を前記画面表示部に表示し、前記プロセッサの低消費電力モード時は、前記画面表示部の画面表示を消去すると共に前記LEDを点滅し、前記第2スイッチによる前記無線通信機能の起動の指示に応じた処理の実行後は、通話の待ち受け状態である旨を示す待ち受け画面を前記画面表示部に表示すると共に前記LEDを点灯することを特徴とする、請求項1記載の無線通信機。
The wireless communication device includes a screen display unit that displays an information screen, and an LED that indicates the state of the wireless communication device,
When executing the processing in response to the power-on instruction, a startup screen indicating that the wireless communication device is being started is displayed on the screen display unit, and when the processor is in the low power consumption mode, the screen display is performed. And the LED blinks, and after executing the process according to the activation instruction of the wireless communication function by the second switch, a standby screen indicating that the telephone is in a standby state is displayed on the screen. The wireless communication device according to claim 1, wherein the wireless communication device displays on the display unit and lights the LED .
前記第2スイッチは、出力音量の調整も兼ねたロータリスイッチであり、
前記第2スイッチを回転させることで前記無線通信機能を起動し、前記第2スイッチの回転角度に応じた出力音量に調整することを特徴とする、請求項1又は請求項2記載の無線通信機。
The second switch is a rotary switch that also adjusts the output volume.
Start the radio communication function by rotating the second switch, and adjusting the output volume in accordance with the rotation angle of the second switch, according to claim 1 or claim 2, wherein the wireless communication device .
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