TWI485664B - Tone remote controlling system - Google Patents
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Description
本發明相關於一種遙控裝置及遙控方法，尤相關於一種音調接收裝置及音調遙控方法。The invention relates to a remote control device and a remote control method, and more particularly to a tone receiving device and a tone remote control method.
在遙控系統的基本架構上，通常包含一發送裝置與一接收裝置。為了觸發並啟動受控裝置，發送裝置發出一訊號給接收裝置，接收裝置收到訊號後，再轉發至系統的主處理器進行解碼進而執行動作。In the basic architecture of the remote control system, a transmitting device and a receiving device are usually included. In order to trigger and activate the controlled device, the transmitting device sends a signal to the receiving device, and after receiving the signal, the receiving device forwards the signal to the main processor of the system for decoding and then performs an action.
上述遙控系統的應用極為廣泛，像是電動閘門的開啟與關閉、電氣玩具的動作操控、音訊或視訊播放裝置的各種功能操作，甚至各種現代化家電用品也都已整合此種控制系統。以下再以目前常見用來代步的車輛為例說明。The above-mentioned remote control system is widely used, such as the opening and closing of electric gates, the operation of electric toys, various functions of audio or video playback devices, and even modern home appliances have integrated such control systems. The following is an example of a vehicle that is currently used to travel.
在汽車車主停車熄火後，當車主下並關上車門，這時便會按下遙控器，以對其車輛開啟防盜系統。或者，在車主要開車前，當車主靠近車輛，離車輛尚有一段距離時，車主也會按下遙控器，以對其車輛解除防盜系統。一般而言，這邊所述之汽車遙控器是藉由發出無線電訊號或紅外線訊號來觸發系統。After the car owner stops the car, when the owner closes and closes the door, the remote control is pressed to turn on the anti-theft system for his vehicle. Or, before the car is mainly driving, when the owner is close to the vehicle and there is still a distance from the vehicle, the owner will also press the remote control to remove the anti-theft system from the vehicle. In general, the car remote control described here triggers the system by emitting a radio signal or an infrared signal.
上述習知遙控系統存在一種缺點，即利用紅外線技術之收、發裝置無法符合省電需求。有鑑於此，本案發明人乃亟思加以改良創新，並潛心研究，終構想出一種取代習知以無線電訊號或紅外線訊號進行遠距離系統控制之設計，能夠降低接收裝置的耗能需求且具較大的接收角度，而且其運作方式也是前所未見。The above conventional remote control system has a disadvantage in that the receiving and transmitting device using the infrared technology cannot meet the power saving requirement. In view of this, the inventor of the case was able to improve and innovate, and devote himself to research, and finally conceived a design that replaces the conventional remote control system with radio signals or infrared signals, which can reduce the energy consumption requirements of the receiving device. The large receiving angle and the way it works are unprecedented.
本發明之一目的在於提供一種取代習知以無線電訊號或紅外線訊號進行遠距離系統控制之設計，能夠降低接收裝置的耗能需求。It is an object of the present invention to provide a design that replaces conventional remote system control with radio signals or infrared signals, and can reduce the energy consumption requirements of the receiving device.
本發明提供一種音調遙控系統，包括：一音調遙控器，其發出一 連續聲波；及一音調接收裝置，包括：一聲音接收器，其接收來自該音調遙控器之該連續聲波，並將該聲波轉換成一數位訊號；一數位震盪放大器，其以一輸入端電性耦接該聲音接收器，用以將該一數位訊號放大；一濾波單元，其電性耦接該數位震盪放大器之一輸出端，以對該數位訊號進行濾波；以及一解碼單元，其電性耦接該濾波單元以接收經濾波之該連續聲波並進行解譯，以產生一解譯結果，其中該解碼單元依據該解譯結果，發出一控制訊號給該受控設備的一處理器單元，以喚醒該處理器單元，使該處理器單元執行對應於該解譯結果之工作。The invention provides a tone remote control system, comprising: a tone remote controller, which emits a Continuous sound wave; and a tone receiving device comprising: a sound receiver that receives the continuous sound wave from the tone remote controller and converts the sound wave into a digital signal; a digital oscillating amplifier electrically coupled to an input end Connected to the sound receiver for amplifying the digital signal; a filtering unit electrically coupled to an output of the digital oscillating amplifier to filter the digital signal; and a decoding unit electrically coupled The filtering unit is connected to receive the filtered continuous sound wave and perform interpretation to generate an interpretation result, wherein the decoding unit sends a control signal to a processor unit of the controlled device according to the interpretation result, The processor unit is woken up, causing the processor unit to perform work corresponding to the interpretation result.
其中該數位震盪放大器包含：一反向器；一電阻，其跨接該反向器兩端；和一場效電晶體，其一端接地，一端連接至該反向器之輸入端。該濾波單元包括：一振盪器，用以輸出固定頻率的一時脈訊號；及一二級數位交換電容濾波器，包括：串聯連接之一第一濾波器與一第二濾波器，其中該第一濾波器的輸入端連接該數位震盪放大器之輸出端，該第一濾波器的時脈端連接至該振盪器，用以接收來自該振盪器的該時脈訊號，該第一濾波器的輸出端連接至該第二濾波器的輸入端I2；及該第二濾波器的輸入端連接該第一濾波器之輸出端，該第二濾波器的時脈端也連接至該振盪器，用以接收來自該振盪器的該時脈訊號。The digital oscillating amplifier comprises: an inverter; a resistor connected across the inverter; and an effect transistor having one end grounded and one end connected to the input of the inverter. The filtering unit includes: an oscillator for outputting a clock signal of a fixed frequency; and a first-order digital-bit switched capacitor filter, comprising: a first filter and a second filter connected in series, wherein the first An input end of the filter is coupled to an output of the digital oscillator, and a clock terminal of the first filter is coupled to the oscillator for receiving the clock signal from the oscillator, the output of the first filter Connected to the input end I2 of the second filter; and the input end of the second filter is connected to the output end of the first filter, and the clock end of the second filter is also connected to the oscillator for receiving The clock signal from the oscillator.
其中該解碼單元包含：一時脈暫存器，用以儲存所設定的一計數頻率的值；一基頻計數器，其電性耦接至該振盪器，以接收並計數該振盪器發出的該時脈訊號的脈衝，當累加該時脈訊號的一計數達到該計數頻率的值時，便歸零以展開下個週期；及一第二比較器，其持續輸出位元“0”，只有在該基頻計數器累加該時脈訊號的該計數達該計數頻率的值時，才輸出位元“1”，用以界定一週期的結束或開始。The decoding unit includes: a clock register for storing a set value of a count frequency; a base frequency counter electrically coupled to the oscillator to receive and count the time sent by the oscillator a pulse of the pulse signal, when accumulating a count of the pulse signal reaches the value of the count frequency, returning to zero to expand the next cycle; and a second comparator continuously outputting the bit "0", only in the When the base frequency counter accumulates the count of the clock signal to the value of the count frequency, the bit "1" is output to define the end or start of a cycle.
其中該解碼單元包含：一頻率暫存器，用以儲存一音調頻率的值；一頻率計數器，其電性耦接至該第二濾波器的輸出端，以持續對經過該第二濾波器處理過的一電流訊號內的脈衝進行計數，一直累加到從該第二比較器接收到位元“1”再歸零重新計數；及一第一比較器，當其從該第二比較器接收到位元“1”時，如果該頻率計數器中的計數值介於該頻率暫存器內所儲存的該音調頻率的值的上下一成內，則該第一比較器輸出位元“1”，否則輸出位元“0”。The decoding unit includes: a frequency register for storing a value of a pitch frequency; and a frequency counter electrically coupled to the output of the second filter for continuously processing the second filter The pulse in a current signal is counted, and is added to receive the bit "1" from the second comparator and then reset to zero; and a first comparator receives the bit from the second comparator. "1", if the count value in the frequency counter is within the upper and lower of the value of the pitch frequency stored in the frequency register, the first comparator outputs the bit "1", otherwise the output Bit "0".
其中該解碼單元包含：一識別碼暫存器，其儲存該音調接收裝置的一識別碼；一解碼移位暫存器，用以逐位元儲存來自該第一比較器的輸出位元，以及接收來自該第二比較器器的輸出位元，其中依據該第二比較器的輸出位元，該解碼移位暫存器在每一週期將已儲存在其內的位元移一位元，並存入下一位元，以組成一位元串列；比較器，當該第一比較器的輸出位元被串列成符合該識別碼的位元串列時，該第三比較器發出位元“1”，從而喚醒或中斷接在該第三比較器之後的一處理器單元。The decoding unit includes: an identification code register that stores an identification code of the tone receiving device; and a decoding shift register for storing the output bit from the first comparator bit by bit, and Receiving an output bit from the second comparator, wherein the decode shift register shifts a bit stored therein by one bit per cycle according to an output bit of the second comparator, And storing the next bit to form a bit string; the comparator, when the output bit of the first comparator is serialized into a bit string conforming to the identifier, the third comparator sends out Bit "1", thereby waking up or interrupting a processor unit following the third comparator.
10‧‧‧遙控器10‧‧‧Remote control
11‧‧‧音調接收裝置11‧‧‧ tone receiving device
20‧‧‧處理器單元20‧‧‧ Processor Unit
111‧‧‧聲音接收器111‧‧‧Sound Receiver
112‧‧‧開關112‧‧‧ switch
113‧‧‧數位震盪放大器113‧‧‧Digital Oscillating Amplifier
114‧‧‧濾波單元114‧‧‧Filter unit
115‧‧‧解碼單元115‧‧‧Decoding unit
402~410‧‧‧步驟402~410‧‧‧Steps
1131‧‧‧電阻1131‧‧‧resistance
1132‧‧‧反向器1132‧‧‧ reverser
1133‧‧‧場效電晶體1133‧‧‧ field effect transistor
1141‧‧‧第一濾波器1141‧‧‧First filter
1142‧‧‧第二濾波器1142‧‧‧second filter
1143‧‧‧振盪器1143‧‧‧Oscillator
1151‧‧‧頻率計數器1151‧‧‧ frequency counter
1152‧‧‧頻率暫存器1152‧‧‧Frequency register
1153‧‧‧第一比較器1153‧‧‧First comparator
1154‧‧‧基頻計數器1154‧‧‧ fundamental frequency counter
1155‧‧‧時脈暫存器1155‧‧‧clock register
1156‧‧‧第二比較器1156‧‧‧Second comparator
1157‧‧‧解碼移位暫存器1157‧‧‧Decoding shift register
1158‧‧‧識別碼暫存器1158‧‧‧ID code register
1159‧‧‧第三比較器1159‧‧‧ third comparator
C1‧‧‧時脈端C1‧‧‧ clock end
C2‧‧‧時脈端C2‧‧‧ clock end
C3‧‧‧時脈端C3‧‧‧ clock end
I1‧‧‧輸入端I1‧‧‧ input
I2‧‧‧輸入端I2‧‧‧ input
I3‧‧‧輸入端I3‧‧‧ input
O1‧‧‧輸出端O1‧‧‧ output
O2‧‧‧輸出端O2‧‧‧ output
圖1是本發明一實施例之音調遙控系統之系統示意圖。1 is a system diagram of a tone remote control system in accordance with an embodiment of the present invention.
圖2是本發明一實施例之音調遙控系統之音調接收裝置之局部電路示意圖。2 is a partial circuit diagram of a tone receiving device of a tone remote control system according to an embodiment of the present invention.
圖3是本發明一實施例之音調遙控系統之音調接收裝置之解碼單元的電路示意圖。3 is a circuit diagram of a decoding unit of a tone receiving device of a tone remote control system according to an embodiment of the present invention.
圖4是本發明一實施例之音調遙控實施之流程圖。4 is a flow chart showing the implementation of a tone remote control in accordance with an embodiment of the present invention.
圖1是本發明一實施例之音調遙控系統之系統示意圖。在本發明一實施例之音調遙控系統中，包括：一音調遙控器10；一音調接收裝置11；及一處理器單元20。1 is a system diagram of a tone remote control system in accordance with an embodiment of the present invention. In the tone remote control system according to an embodiment of the present invention, a tone remote controller 10; a tone receiving device 11; and a processor unit 20 are included.
其中，音調遙控器10係用以產生連續聲波，其具有特定頻率，例如8kHz，較佳是製作成一手持式盒狀結構，且以蜂鳴器作為發出聲音的來源。音調接收裝置11主要包括：一聲音接收器111；一數位震盪放大器113；一濾波單元114；以及一解碼單元115。Among them, the tone remote controller 10 is for generating a continuous sound wave having a specific frequency, for example, 8 kHz, preferably made into a hand-held box-like structure, and using a buzzer as a source of sound. The tone receiving device 11 mainly includes: a sound receiver 111; a digital oscillating amplifier 113; a filtering unit 114; and a decoding unit 115.
圖2是本發明一實施例之音調遙控系統之音調接收裝置之局部電路示意圖，其中進一步繪示圖1之音調接收裝置11的聲音接收器111、數位震盪放大器113、和濾波單元114的電路。2 is a partial circuit diagram of a tone receiving device of a tone remote control system according to an embodiment of the present invention, wherein the circuits of the sound receiver 111, the digital oscillating amplifier 113, and the filtering unit 114 of the tone receiving device 11 of FIG. 1 are further illustrated.
如圖所示，聲音接收器111可接收來自前述音調遙控器10之連續聲波。在本實施例中，聲音接收器111可以是一蜂鳴片接收器，藉由壓電效應將聲波轉換為電流訊號的形式。選擇性地，聲音接收器111還包括有一開關 112用以開通或中斷連續聲波之接收。As shown, the sound receiver 111 can receive continuous sound waves from the aforementioned tone remote control 10. In the present embodiment, the sound receiver 111 may be a buzzer receiver that converts sound waves into a form of a current signal by a piezoelectric effect. Optionally, the sound receiver 111 further includes a switch 112 is used to turn on or interrupt the reception of continuous sound waves.
本發明之數位震盪放大器113具有一輸入端與一輸出端，數位震盪放大器113之輸入端電性耦接聲音接收器111的輸出端，以接收由連續聲波轉換而來的電流訊號。此外，數位震盪放大器113之輸出端則電性耦接於濾波單元114之第一濾波器1141的輸入端I1，以將經過數位震盪放大處理的電流訊號傳遞給濾波單元114。The digital oscillating amplifier 113 of the present invention has an input end and an output end. The input end of the digital oscillating amplifier 113 is electrically coupled to the output end of the sound receiver 111 to receive the current signal converted by the continuous sound wave. In addition, the output of the digital oscillating amplifier 113 is electrically coupled to the input terminal I1 of the first filter 1141 of the filtering unit 114 to transmit the current signal subjected to the digital oscillating amplification processing to the filtering unit 114.
不同於習知之遙控器採用較為耗電的功率放大器，本發明之數位震盪放大器113採用一反向器電路，包含：一反向器1132；一電阻1131，其跨接該反向器1132兩端；和一場效電晶體1133，其一端接地，一端連接至該反向器1132之輸入端。Unlike the conventional remote control using a relatively power consuming power amplifier, the digital oscillating amplifier 113 of the present invention employs an inverter circuit comprising: an inverter 1132; a resistor 1131 spanning the ends of the inverter 1132 And an effect transistor 1133 having one end grounded and one end connected to the input of the inverter 1132.
如圖2所示，濾波單元114可以包括一二級數位交換電容濾波器，而該二級數位交換電容濾波包括串聯連接之一第一濾波器1141與一第二濾波器1142。第一濾波器1141的輸入端I1連接數位震盪放大器113之輸出端，時脈端C1連接至一振盪器1143，用以接收來自該振盪器1143的時脈訊號，輸出端O1則連接至該第二濾波器1142的輸入端I2。第二濾波器1142的輸入端I2連接該第一濾波器1141之輸出端，時脈端C2也同樣連接至該振盪器1143，用以接收來自該振盪器1143的時脈訊號，輸出端O2則將經過濾波後的電流訊號供應至其後的解碼單元115。此時，經過濾波的電流訊號已基本上具有連續方波的性質。As shown in FIG. 2, the filtering unit 114 may include a two-level digital switched capacitor filter, and the two-level digital switched capacitor filtering includes a first filter 1141 and a second filter 1142 connected in series. The input terminal I1 of the first filter 1141 is connected to the output end of the digital oscillating amplifier 113, and the clock terminal C1 is connected to an oscillator 1143 for receiving the clock signal from the oscillator 1143, and the output terminal O1 is connected to the first The input I2 of the second filter 1142. The input terminal I2 of the second filter 1142 is connected to the output end of the first filter 1141, and the clock terminal C2 is also connected to the oscillator 1143 for receiving the clock signal from the oscillator 1143, and the output terminal O2 is The filtered current signal is supplied to the subsequent decoding unit 115. At this point, the filtered current signal has essentially the properties of a continuous square wave.
選擇性地，該振盪器1143可以是施密特觸發器(schmitt trigger)，其作用在於輸出一固定頻率的時脈訊號給第一濾波器1141、第二濾波器1142、以及其後的解碼單元115。Optionally, the oscillator 1143 may be a Schmitt trigger, which is configured to output a fixed frequency clock signal to the first filter 1141, the second filter 1142, and the subsequent decoding unit. 115.
圖3是本發明一實施例之音調遙控系統之音調接收裝置之解碼單元的電路示意圖。解碼單元115電性耦接該濾波單元114以接收經濾波之電流訊號，並對此一具有連續方波性質的電流訊號進行解譯，例如，利用兩次音頻感應的間隔時間來定義觸發事件。3 is a circuit diagram of a decoding unit of a tone receiving device of a tone remote control system according to an embodiment of the present invention. The decoding unit 115 is electrically coupled to the filtering unit 114 to receive the filtered current signal, and interprets the current signal having a continuous square wave property, for example, using an interval of two audio sensing to define a trigger event.
解碼單元115包含三部分。其中，第一部分包含：一頻率計數器1151、一頻率暫存器1152、一第一比較器1153。第二部分包含：一基頻計數器1154、一時脈暫存器1155、一第二比較器1156。第三部分包含：一解碼移位暫 存器1157、一識別碼暫存器1158、一第三比較器1159。The decoding unit 115 has three parts. The first part includes: a frequency counter 1151, a frequency register 1152, and a first comparator 1153. The second part comprises: a base frequency counter 1154, a clock register 1155, and a second comparator 1156. The third part contains: a decoding shift The memory 1157, an identification code register 1158, and a third comparator 1159.
如圖3所示，解碼單元15的第二部分的作用是在於設定所欲計數週期。其中，時脈暫存器1155是用以在設定好所欲計數週期後，儲存所設定的一計數頻率的值。基頻計數器1154電性耦接至振盪器1143，以接收並計數該振盪器1143發出的時脈訊號的脈衝，當累加時脈訊號的計數達到該計數頻率的值時，便歸零以展開下個週期。而第二比較器1156的作用是在於輸出固定週期的一週期訊號，也就是持續輸出位元“0”，只有在基頻計數器1154累加時脈訊號的計數達該計數頻率的值時，才輸出位元“1”，用以界定週期的結束或開始。例如，若振盪器1143的時脈頻率是32KHz，而計數頻率設置成3125，則第二比較器1156的週期訊號的輸出頻率為10Hz(即，週期為100 ms)。之後，第二比較器1156所輸出的週期訊號會同時傳送到第一部分的頻率計數器1151，和第二部分的解碼移位暫存器1157。As shown in FIG. 3, the second portion of the decoding unit 15 functions to set the desired counting period. The clock register 1155 is configured to store the set value of a count frequency after the desired count period is set. The base frequency counter 1154 is electrically coupled to the oscillator 1143 to receive and count the pulse of the clock signal sent by the oscillator 1143. When the count of the accumulated pulse signal reaches the value of the count frequency, it is reset to zero to expand. Cycles. The second comparator 1156 is configured to output a period signal of a fixed period, that is, to continuously output the bit "0", and output only when the counter of the pulse signal reaches the value of the count frequency when the base frequency counter 1154 is accumulated. The bit "1" is used to define the end or start of the cycle. For example, if the clock frequency of the oscillator 1143 is 32 kHz and the count frequency is set to 3125, the output frequency of the periodic signal of the second comparator 1156 is 10 Hz (i.e., the period is 100 ms). Thereafter, the periodic signal output by the second comparator 1156 is simultaneously transmitted to the frequency counter 1151 of the first portion, and the decoding shift register 1157 of the second portion.
如圖3所示，解碼單元115的第一部分的作用是在於設定所欲偵測的音調頻率。頻率計數器1151電性耦接至第二濾波器1142的輸出端O2，以接收經過濾波單元114處理過的電流訊號。頻率暫存器1152則是在設定好所欲偵測的音調頻率之後，用以儲存該音調頻率的值。頻率計數器1151持續對經過濾波單元114處理過的電流訊號內的脈衝進行計數，一直累加到從第二比較器1156接收到位元“1”的週期訊號，此時表示一個週期結束並要重新開始一個週期，因此頻率計數器1151便歸零重新計數。As shown in FIG. 3, the first portion of the decoding unit 115 functions to set the pitch frequency to be detected. The frequency counter 1151 is electrically coupled to the output O2 of the second filter 1142 to receive the current signal processed by the filtering unit 114. The frequency register 1152 is a value for storing the pitch frequency after setting the tone frequency to be detected. The frequency counter 1151 continuously counts the pulses in the current signal processed by the filtering unit 114, and accumulates the period signal received from the second comparator 1156 to the bit "1", indicating that one cycle is over and a new one is to be restarted. Cycle, so the frequency counter 1151 is reset to zero.
第一比較器1153是範圍比較器，在頻率計數器1151從第二比較器1156接收到位元“1”的週期訊號時，如果頻率計數器1151中的計數值介於該頻率暫存器1152內所儲存的該音調頻率的值的上下一成內，則第一比較器1153輸出位元“1”，否則輸出位元“0”。例如，若計數頻率是10Hz，如果所欲偵測的音調頻率是7 KHz，則在該該頻率暫存器1152儲存的該音調頻率要設定成714。其計算方式為，當外部聲波的頻率是7 KHz時，則經過濾波單元114處理過的電流訊號的頻率亦為7 KHz，週期為0.14 ms。當計數頻率是10 Hz，也就是週期為100 ms，100 ms除以0.14 ms即為714。當第一比較器1153輸出位元持續輸出位元時，此等位元即可形成一位元串列，並逐位元送往第三部分的解碼移位暫存器1157儲存，以當作一識別碼訊號。The first comparator 1153 is a range comparator. When the frequency counter 1151 receives the periodic signal of the bit "1" from the second comparator 1156, if the count value in the frequency counter 1151 is stored in the frequency register 1152 The first comparator 1153 outputs the bit "1", otherwise the bit "0" is output. For example, if the counting frequency is 10 Hz, if the pitch frequency to be detected is 7 KHz, the pitch frequency stored in the frequency register 1152 is set to 714. The calculation method is that when the frequency of the external sound wave is 7 KHz, the frequency of the current signal processed by the filtering unit 114 is also 7 KHz, and the period is 0.14 ms. When the count frequency is 10 Hz, that is, the period is 100 ms, 100 ms divided by 0.14 ms is 714. When the first comparator 1153 outputs the bit continuous output bit, the bits can form a bit string and are sent to the third portion of the decoding shift register 1157 bit by bit to be treated as An identification code signal.
如圖3所示，解碼單元115的第三部分的作用是在於設定音調接收裝置11的識別碼，此識別碼可為一16位元編碼，儲存於一識別碼暫存器1158內。當第一比較器1153輸出的識別碼訊號的位元串列符合識別碼的16位元編碼時才能使第三比較器1159發出位元“1”，從而喚醒或中斷接在該第三比較器1159之後的一處理器單元20。As shown in FIG. 3, the third portion of the decoding unit 115 functions to set the identification code of the tone receiving device 11, and the identification code can be a 16-bit code stored in an identification code register 1158. When the bit string of the identification code signal output by the first comparator 1153 conforms to the 16-bit code of the identification code, the third comparator 1159 can be made to issue the bit "1", thereby waking up or interrupting the third comparator. A processor unit 20 after 1159.
識別碼暫存器1158中儲存有音調接收裝置11的識別碼，例如，其可設定為一16位元編碼“11 0000000 1100000”。解碼移位暫存器1157可以為一16位元的左移移位暫存器，用以逐位元儲存來自第一比較器1153的識別碼訊號的位元串列，以及接收來自第二比較器1156的週期訊號。依據該週期訊號，解碼移位暫存器1157在每一週期將已儲存在其內的位元移一位元，並存入下一位元。如此，經過16個週期，便組成該識別碼訊號的位元串列，如果該識別碼訊號的位元串列符合識別碼暫存器1158中所儲存的音調接收裝置11的識別碼，則第三比較器1159發出位元“1”，從而喚醒或中斷接在該第三比較器1159之後的一處理器單元20。The identification code register 11 is stored with the identification code of the tone receiving device 11, for example, it can be set to a 16-bit code "11 0000000 1100000". The decoding shift register 1157 can be a 16-bit left shift shift register for storing the bit string of the identification code signal from the first comparator 1153 bit by bit, and receiving the second comparison. The periodic signal of the device 1156. According to the periodic signal, the decoding shift register 1157 shifts the bit stored therein by one bit in each cycle and stores it in the next bit. Thus, after 16 cycles, the bit string of the identification code signal is formed. If the bit string of the identification code signal conforms to the identification code of the tone receiving device 11 stored in the identification code register 1158, then The three comparators 1159 issue a bit "1" to wake up or interrupt a processor unit 20 that is connected after the third comparator 1159.
圖4為應用在控制系統中音調接收裝置運作之流程圖，配合圖1~3舉例說明本發明用於控制系統之接收裝置之運作。首先如步驟402，利用一音調遙控器10發出特定頻率(例如8 KHz之高頻)之連續聲波後，由音調接收裝置11之聲音接收器111所接收，在聲音接收器111的開關112設為開的情況下連續聲波將轉換為數位訊號傳遞進一數位震盪放大器113。4 is a flow chart showing the operation of the tone receiving device applied in the control system, and the operation of the receiving device for the control system of the present invention is illustrated with reference to FIGS. First, as in step 402, after a continuous sound wave of a specific frequency (for example, a high frequency of 8 KHz) is emitted by a tone remote controller 10, it is received by the sound receiver 111 of the tone receiving device 11, and the switch 112 of the sound receiver 111 is set to In the open case, the continuous sound wave is converted into a digital signal and transmitted to a digital oscillating amplifier 113.
接著到步驟404，使用數位震盪放大器113將收進之數位訊號放大，如圖2中所示之放大器即為一種可達到低功率運作之放大器，工作電流約為6~10微安培，也因此本發明特點之一是在於可以透過使用各種低功率設計之放大器而獲得較省電之運作模式。在此，原本接近弦波形之數位訊號經處理後即轉變成接近方波之波形。Next, in step 404, the digitized oscillating amplifier 113 is used to amplify the received digital signal. The amplifier shown in FIG. 2 is an amplifier capable of operating at a low power, and the operating current is about 6 to 10 microamperes. One of the features of the invention is that a more power efficient mode of operation can be achieved by using various low power designed amplifiers. Here, the digital signal that is close to the chord waveform is processed to be converted into a waveform close to the square wave.
再接著到步驟406，當聲波經過數位震盪放大器113放大處理之後進入濾波單元114，使被放大之數位訊號經過濾波處理，在一實施範例中是設計成將頻段範圍7~9 KHz保留住，去除環境低頻雜訊。Then, in step 406, after the sound wave is amplified by the digital oscillating amplifier 113, it enters the filtering unit 114, so that the amplified digital signal is filtered. In an embodiment, the frequency range is 7~9 KHz, and is removed. Ambient low frequency noise.
接著到步驟408，被保留特定頻段之數位訊號由解碼單元115解譯。當解碼單元115解譯完此數位訊號後會產生一解譯結果。然後解碼單元115 依據上述解譯結果喚醒初始位於休眠或關閉之一處理器單元20，使處理器單元20執行對應解譯結果之工作，例如，若該處理器單元20位於一收音機內，則所執行的工作可以是開啟或關閉收音機，即步驟410。Next, in step 408, the digital signal that is reserved for the particular frequency band is interpreted by decoding unit 115. When the decoding unit 115 interprets the digital signal, an interpretation result is generated. Then decoding unit 115 Awakening the processor unit 20 to perform the corresponding interpretation result according to the above-mentioned interpretation result, for example, if the processor unit 20 is located in a radio, the performed work may be performed. Turning the radio on or off, step 410.
簡言之，音調遙控器是以音調編碼為識別碼，經音調接收裝置接收並解碼為識別碼訊號，經比對符合該音調接收裝置的識別碼後，便能啟動或關閉該音調接收裝置所連接的機器，例如，汽車、捲門、收音機等等。Briefly, the tone remote controller encodes the tone as an identification code, and the tone receiving device receives and decodes the signal as an identification code. After comparing the identification code of the tone receiving device, the tone receiving device can be activated or deactivated. Connected machines, such as cars, roller shutters, radios, etc.
111‧‧‧聲音接收器111‧‧‧Sound Receiver
112‧‧‧開關112‧‧‧ switch
113‧‧‧數位震盪放大器113‧‧‧Digital Oscillating Amplifier
114‧‧‧濾波單元114‧‧‧Filter unit
1131‧‧‧電阻1131‧‧‧resistance
1132‧‧‧反向器1132‧‧‧ reverser
1133‧‧‧場效電晶體1133‧‧‧ field effect transistor
1141‧‧‧第一濾波器1141‧‧‧First filter
1142‧‧‧第二濾波器1142‧‧‧second filter
1143‧‧‧振盪器1143‧‧‧Oscillator
C1‧‧‧時脈端C1‧‧‧ clock end
C2‧‧‧時脈端C2‧‧‧ clock end
C3‧‧‧時脈端C3‧‧‧ clock end
I1‧‧‧輸入端I1‧‧‧ input
I2‧‧‧輸入端I2‧‧‧ input
I3‧‧‧輸入端I3‧‧‧ input
O1‧‧‧輸出端O1‧‧‧ output
O2‧‧‧輸出端O2‧‧‧ output
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Citations (4)
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|---|---|---|---|---|
| US3737857A (en) * | 1972-04-19 | 1973-06-05 | Cameron Iron Works Inc | Acoustic control system having alternate enabling and control signal |
| TWM260936U (en) * | 2004-06-29 | 2005-04-01 | Nuidea Technology Co Ltd | Telephone voice frequency coding/decoding wireless remote control device |
| CN1825375A (en) * | 2006-03-30 | 2006-08-30 | 上海序参量科技发展有限公司 | Apparatus with audio-frequency function of remote-controller |
| CN202649720U (en) * | 2012-04-28 | 2013-01-02 | 上海第二工业大学 | Audio remote control switch device |
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2013
- 2013-03-28 TW TW102111241A patent/TWI485664B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737857A (en) * | 1972-04-19 | 1973-06-05 | Cameron Iron Works Inc | Acoustic control system having alternate enabling and control signal |
| TWM260936U (en) * | 2004-06-29 | 2005-04-01 | Nuidea Technology Co Ltd | Telephone voice frequency coding/decoding wireless remote control device |
| CN1825375A (en) * | 2006-03-30 | 2006-08-30 | 上海序参量科技发展有限公司 | Apparatus with audio-frequency function of remote-controller |
| CN202649720U (en) * | 2012-04-28 | 2013-01-02 | 上海第二工业大学 | Audio remote control switch device |
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