Sickbed voice control circuit and sickbed

Abstract

The utility model discloses a sickbed voice control circuit and a sickbed, and relates to the technical field of control circuits. The hospital bed voice control circuit comprises a microphone, a voice conversion unit, a voice recognition unit and a power supply and communication interface unit, the microphone, the voice conversion unit, the voice recognition unit, the power supply and communication interface unit and a control circuit board of the sickbed are electrically connected in sequence, the microphone is used for acquiring a voice signal of a patient, and the voice conversion unit is used for converting the voice signal of the patient into a digital audio signal; the voice recognition unit is used for recognizing the digital audio signals, generating control instructions according to recognition results and sending the control instructions to the control circuit board through the power supply and communication interface unit so that the control circuit board can control the sickbed according to the control instructions. According to the sickbed voice control circuit and the sickbed, a patient can conveniently adjust and control the sickbed, and the workload of nurses is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to control circuit technical field, concretely relates to a sickbed voice control circuit and sickbed. BACKGROUND

[0002] In order to facilitate the patient to adjust sickbed (such as adjusting sickbed height), many hospitals have adopted electric control mode to adjust and control sickbed. However, the electric control of sickbed in prior art is mostly operated and controlled by nursing staff through remote control operation panel, and the operation difficulty of patient is big, especially for some bedridden patients, which brings great inconvenience to the adjustment and control of sickbed.

[0003] Therefore, how to provide an effective scheme to facilitate the patient to adjust and control sickbed has become a difficult problem to be solved in prior art. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a sickbed voice control circuit and sickbed to solve the above problems in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a sickbed voice control circuit, which comprises: microphone, voice conversion unit, voice recognition unit and power supply and communication interface unit.

[0007] The microphone, the voice conversion unit, the voice recognition unit, the power supply and communication interface unit and the control circuit board of sickbed are electrically connected in sequence, the microphone is used to obtain the voice signal of patient, the voice conversion unit is used to convert the voice signal of patient into digital audio signal, the voice recognition unit is used to identify the digital audio signal and generates control instruction according to the identification result, and the control instruction is sent to the control circuit board through the power supply and communication interface unit to make the control circuit board control sickbed according to the control instruction.

[0008] Based on the above disclosure, the utility model discloses through setting up microphone, speech conversion unit, speech recognition unit and power supply and communication interface unit, microphone, speech conversion unit, speech recognition unit, power supply and communication interface unit and the control circuit board of sick bed are electrically connected in proper order, and microphone is used to obtain the speech signal of patient, speech conversion unit is used to convert the speech signal of patient into digital audio signal, speech recognition unit is used to identify digital audio signal and generates control instruction according to the identification result, and through power supply and communication interface unit, control instruction is sent to control circuit board to make control circuit board control sick bed according to control instruction.

[0009] In a possible design, the sick bed voice control circuit further includes an audio power amplifier unit and a loudspeaker, the speech recognition unit, the audio power amplifier unit and the loudspeaker are electrically connected in proper order, the speech recognition unit is further configured to generate an audio feedback signal based on the sick bed control result fed back by the control circuit board, the audio power amplifier unit is configured to amplify the audio feedback signal, and the loudspeaker is configured to play the amplified audio feedback signal.

[0010] In a possible design, the audio power amplifier unit adopts an MSOP8 chip and a peripheral circuit thereof.

[0011] In a possible design, the microphone is two, and the two microphones are electrically connected with the speech conversion unit.

[0012] In a possible design, the speech conversion unit adopts an ES7243 chip and a peripheral circuit thereof.

[0013] In a possible design, the speech recognition unit adopts a CSK4002 chip and a peripheral circuit thereof.

[0014] In a possible design, the power supply and communication interface unit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first N-channel enhancement MOS tube, a second N-channel enhancement MOS tube, a first diode, a second diode, a first capacitor, a second capacitor and a communication interface.

[0015] One end of the first resistor and one end of the second resistor are connected with the voice recognition unit, the other end of the first resistor is connected with the source of the first N-channel enhancement MOS tube, the other end of the second resistor is connected with the source of the second N-channel enhancement MOS tube, the drain of the first N-channel enhancement MOS tube is connected with the communication interface, the drain of the second N-channel enhancement MOS tube is connected with the communication interface, the gate of the first N-channel enhancement MOS tube and the gate of the second N-channel enhancement MOS tube are connected with 3.3V power supply, the anode of the first diode is connected with the source of the first N-channel enhancement MOS tube, the cathode of the first diode is connected with the drain of the first N-channel enhancement MOS tube, the anode of the second diode is connected with the source of the second N-channel enhancement MOS tube, the cathode of the second diode is connected with the drain of the second N-channel enhancement MOS tube, one end of the seventh resistor is connected between the first resistor and the source of the first N-channel enhancement MOS tube, the other end of the seventh resistor is connected between the drain of the first N-channel enhancement MOS tube and the communication interface, one end of the eighth resistor is connected between the second resistor and the source of the second N-channel enhancement MOS tube, the other end of the eighth resistor is connected between the drain of the second N-channel enhancement MOS tube and the communication interface, one end of the third resistor is connected with 3.3V power supply, the other end of the third resistor is connected between the first resistor and the source of the first N-channel enhancement MOS tube, one end of the fourth resistor is connected with 3.3V power supply, the other end of the fourth resistor is connected between the second resistor and the source of the second N-channel enhancement MOS tube, one end of the fifth resistor is connected with 5V power supply, the other end of the fifth resistor is connected between the drain of the second N-channel enhancement MOS tube and the communication interface, one end of the sixth resistor is connected with 5V power supply, the other end of the sixth resistor is connected between the drain of the first N-channel enhancement MOS tube and the communication interface, one end of the first capacitor is connected between the drain of the second N-channel enhancement MOS tube and the communication interface, the other end of the first capacitor is connected with ground, one end of the second capacitor is connected between the drain of the first N-channel enhancement MOS tube and the communication interface, the other end of the second capacitor is connected with ground.

[0016] In a second aspect, the utility model provides a sickbed, the sickbed includes the sickbed voice control circuit of first aspect or any possible design of first aspect.

[0017] Beneficial effects:

[0018] The bed voice control circuit and the bed provided by the utility model can make patients adjust and control the bed through voice without the help of others, bring a better operation mode to patients in bed, facilitate patients to adjust and control the bed, and also can reduce the workload of nurses, and are convenient for practical application and promotion. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The bed voice control circuit provided by the embodiment of the application is shown in a block diagram;

[0020] Figure 2 The circuit schematic diagram of the voice conversion unit provided by the embodiment of the application is shown in a block diagram;

[0021] Figure 3 The circuit schematic diagram of the voice recognition unit provided by the embodiment of the application is shown in a block diagram;

[0022] Figure 4 The circuit schematic diagram of the power supply and communication interface unit provided by the embodiment of the application is shown in a block diagram;

[0023] Figure 5 The circuit schematic diagram of the audio power amplifier unit provided by the embodiment of the application is shown in a block diagram. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the utility model will be briefly introduced in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model.

[0025] As Figure 1 shown, the first aspect of the embodiment provides a bed voice control circuit, which comprises a microphone, a voice conversion unit, a voice recognition unit and a power supply and communication interface unit, and the microphone, the voice conversion unit, the voice recognition unit, the power supply and communication interface unit and the control circuit board of the bed are sequentially electrically connected.

[0026] The microphone is used to obtain the voice signal of the patient, the voice conversion unit is used to convert the voice signal of the patient into a digital audio signal, the voice recognition unit is used to identify the digital audio signal and generate a control instruction according to the identification result, and the control instruction is sent to the control circuit board through the power supply and communication interface unit to control the bed according to the control instruction.

[0027] The microphone is used to acquire the voice signal of the patient. Due to the large environmental noise in the hospital, in order to avoid the poor voice control effect of the hospital bed due to the too large environmental noise, two microphones can be arranged in the embodiment of the application, and the two microphones are electrically connected with the voice conversion unit.

[0028] The voice conversion unit is used to convert the voice signal of the patient into a digital audio signal, which can but is not limited to adopt an ES7243 chip and its peripheral circuit or an HT5943 chip and its peripheral circuit and the like. As shown in Figure 2 , the voice conversion unit in the embodiment of the application adopts an ES7243 chip and its peripheral circuit. As shown in Figure 2 , J3 is an input port of the double-channel voice signal (MIC signal), and the PIN15 / PIN16 and PIN9 / PIN10 pins of the ES7243 chip receive the two-channel voice signal. The two-channel voice signal is converted into a digital audio signal by the ES7243 chip, and then is output to the voice recognition unit for recognition and noise reduction processing through the I2S_MCLK pin, the I2S_BCLK pin, the I2S_FCLK pin and the I2S_DIN0 pin after being encoded.

[0029] The voice recognition unit is used to recognize the digital audio signal and generate a control instruction according to the recognition result, which can but is not limited to adopt a CSK4002 chip and its peripheral circuit or an XFS5152CE chip and its peripheral circuit and the like. As shown in Figure 3 , the voice recognition unit in the embodiment of the application adopts a CSK4002 chip and its peripheral circuit. As shown in Figure 3 , the voice recognition unit is built-in with a 64Mbit flash memory, and the voice estimation of the hospital bed is directly burned through the USB_DP of PIN4 and the USB_DM of PIN5. After being started, the chip of the voice conversion unit is written into the register to set the data through PIN31 and PIN32, and the digital audio signal of the voice conversion unit is received through the PIN20, PIN33, PIN34 and PIN36 pins for recognition.

[0030] The power supply and communication interface unit sends the control instruction to the control circuit board. Please refer to Figure 4 , the power supply and communication interface unit includes a first resistor R344, a second resistor R345, a third resistor R326, a fourth resistor R327, a fifth resistor R325, a sixth resistor R324, a seventh resistor R24, an eighth resistor R39, a first N-channel enhancement MOS tube Q1, a second N-channel enhancement MOS tube Q2, a first diode Q3, a second diode Q4, a first capacitor C174, a second capacitor C175 and a communication interface J3.

[0031] One end of the first resistor R344 and one end of the second resistor R345 are connected with the voice recognition unit, the other end of the first resistor R344 is connected with the source of the first N-channel enhancement MOS tube Q1, the other end of the second resistor R345 is connected with the source of the second N-channel enhancement MOS tube Q2, the drain of the first N-channel enhancement MOS tube Q1 is connected with the communication interface J3, the drain of the second N-channel enhancement MOS tube Q2 is connected with the communication interface J3, the gate of the first N-channel enhancement MOS tube Q1 and the gate of the second N-channel enhancement MOS tube Q2 are connected with 3.3V power supply, the anode of the first diode Q3 is connected with the source of the first N-channel enhancement MOS tube Q1, the cathode of the first diode Q3 is connected with the drain of the first N-channel enhancement MOS tube Q1, the anode of the second diode Q4 is connected with the source of the second N-channel enhancement MOS tube Q2, the cathode of the second diode Q4 is connected with the drain of the second N-channel enhancement MOS tube Q2, one end of the seventh resistor R24 is connected between the first resistor R344 and the source of the first N-channel enhancement MOS tube Q1, the other end of the seventh resistor R24 is connected between the drain of the first N-channel enhancement MOS tube Q1 and the communication interface, one end of the eighth resistor R39 is connected between the second resistor R345 and the source of the second N-channel enhancement MOS tube Q2, the other end of the eighth resistor R39 is connected between the drain of the second N-channel enhancement MOS tube Q2 and the communication interface J3, one end of the third resistor R326 is connected with 3.3V power supply, the other end of the third resistor R326 is connected between the first resistor R344 and the source of the first N-channel enhancement MOS tube Q1, one end of the fourth resistor R327 is connected with 3.3V power supply, the other end of the fourth resistor R327 is connected between the second resistor R345 and the source of the second N-channel enhancement MOS tube Q2, one end of the fifth resistor R325 is connected with 5V power supply, the other end of the fifth resistor R325 is connected between the drain of the second N-channel enhancement MOS tube Q2 and the communication interface, one end of the sixth resistor R324 is connected with 5V power supply, the other end of the sixth resistor R324 is connected between the drain of the first N-channel enhancement MOS tube Q1 and the communication interface J3, one end of the first capacitor C174 is connected between the drain of the second N-channel enhancement MOS tube Q2 and the communication interface J3, the other end of the first capacitor C174 is connected with ground, one end of the second capacitor C175 is connected between the drain of the first N-channel enhancement MOS tube Q1 and the communication interface J3, the other end of the second capacitor C175 is connected with ground.

[0032] The data RXD1 / TXD1 of the voice recognition unit is converted in level by the first N-channel enhancement MOS tube Q1 and the second N-channel enhancement MOS tube Q2, sent to the control circuit board of the hospital bed through the communication interface J3, and thus the communication and control of the control circuit board are realized. The power supply and communication interface unit can also supply power to the voice recognition unit and the control circuit board of the hospital bed. The IO port level of the voice recognition unit is 3.3V, and the port level of the control circuit board is 5V. The first N-channel enhancement MOS tube Q1 and the second N-channel enhancement MOS tube Q2 are used to realize the level conversion of the two circuit interfaces, so as to supply power to the voice recognition unit and the control circuit board.

[0033] Please refer to Figure 1 The hospital bed voice control circuit further includes an audio power amplifier unit and a loudspeaker. The voice recognition unit, the audio power amplifier unit and the loudspeaker are electrically connected in sequence. The voice recognition unit is further configured to generate an audio feedback signal based on the hospital bed control result fed back by the control circuit board. The audio power amplifier unit is configured to amplify the audio feedback signal. The loudspeaker is configured to play the amplified audio feedback signal.

[0034] The audio power amplifier unit can be, but is not limited to, an MSOP8 chip and its peripheral circuit or an SOP8 chip and its peripheral circuit, etc. In this embodiment, the audio power amplifier unit is an MSOP8 chip and its peripheral circuit, as shown in Figure 5 The audio power amplifier unit is a circuit schematic diagram.

[0035] The hospital bed voice control circuit provided in this embodiment includes a microphone, a voice conversion unit, a voice recognition unit and a power supply and communication interface unit. The microphone, the voice conversion unit, the voice recognition unit, the power supply and communication interface unit and the control circuit board of the hospital bed are electrically connected in sequence. The microphone is configured to acquire a voice signal of a patient. The voice conversion unit is configured to convert the voice signal of the patient into a digital audio signal. The voice recognition unit is configured to recognize the digital audio signal and generate a control instruction according to the recognition result. The control instruction is sent to the control circuit board through the power supply and communication interface unit, so that the control circuit board controls the hospital bed according to the control instruction. In this way, the patient can adjust and control the hospital bed through voice without the help of others, which brings a better operation mode to the patient in bed and facilitates the patient to adjust and control the hospital bed, and also reduces the workload of nurses. The use of double microphones ensures the pickup effect. The voice recognition unit uses a CSK4002 chip and its peripheral circuit. Due to the powerful noise reduction function of the CSK4002 chip, the voice recognition can be realized in a noisy environment, and the hospital bed can be accurately controlled.

[0036] The second aspect of the embodiment provides a hospital bed including the hospital bed voice control circuit of the first aspect of the embodiment.

[0037] The working process, working details and technical effects of the hospital bed provided by the second aspect of the embodiment can be referred to the first aspect of the embodiment, and will not be described here again.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A bed voice control circuit, characterized by, It comprises: a microphone, a voice conversion unit, a voice recognition unit and a power supply and communication interface unit; The microphone, the voice conversion unit, the voice recognition unit, the power supply and communication interface unit and the control circuit board of the hospital bed are sequentially electrically connected. The microphone is used to obtain the voice signal of the patient. The voice conversion unit is used to convert the voice signal of the patient into a digital audio signal. The voice recognition unit is used to identify the digital audio signal and generate a control instruction according to the identification result, and send the control instruction to the control circuit board through the power supply and communication interface unit to control the hospital bed according to the control instruction. The power supply and communication interface unit comprises a first resistor (R344), a second resistor (R345), a third resistor (R326), a fourth resistor (R327), a fifth resistor (R325), a sixth resistor (R324), a seventh resistor (R24), an eighth resistor (R39), a first N-channel enhancement MOS tube (Q1), a second N-channel enhancement MOS tube (Q2), a first diode (Q3), a second diode (Q4), a first capacitor (C174), a second capacitor (C175) and a communication interface (J3). One end of the first resistor (R344) and one end of the second resistor (R345) are connected with the voice recognition unit, the other end of the first resistor (R344) is connected with the source of the first N-channel enhancement MOS tube (Q1), the other end of the second resistor (R345) is connected with the source of the second N-channel enhancement MOS tube (Q2), the drain of the first N-channel enhancement MOS tube (Q1) is connected with the communication interface, the drain of the second N-channel enhancement MOS tube (Q2) is connected with the communication interface (J3), the gate of the first N-channel enhancement MOS tube (Q1) and the gate of the second N-channel enhancement MOS tube (Q2) are connected with 3.3V power supply, the anode of the first diode (Q3) is connected with the source of the first N-channel enhancement MOS tube (Q1), the cathode of the first diode (Q3) is connected with the drain of the first N-channel enhancement MOS tube (Q1), the anode of the second diode (Q4) is connected with the source of the second N-channel enhancement MOS tube (Q2), the cathode of the second diode (Q4) is connected with the drain of the second N-channel enhancement MOS tube (Q2), one end of the seventh resistor (R24) is connected between the first resistor (R344) and the source of the first N-channel enhancement MOS tube (Q1), the other end of the seventh resistor (R24) is connected between the drain of the first N-channel enhancement MOS tube (Q1) and the communication interface (J3), one end of the eighth resistor (R39) is connected between the second resistor (R345) and the source of the second N-channel enhancement MOS tube (Q2), the other end of the eighth resistor (R39) is connected between the drain of the second N-channel enhancement MOS tube (Q2) and the communication interface (J3), one end of the third resistor (R326) is connected with 3.3V power supply, the other end of the third resistor (R326) is connected between the first resistor (R344) and the source of the first N-channel enhancement MOS tube (Q1), one end of the fourth resistor (R327) is connected with 3.3V power supply, the other end of the fourth resistance (R327) is connected between the second resistance (R345) and the source of the second N-channel enhancement MOS tube (Q2), one end of the fifth resistance (R325) is connected to 5V power supply, the other end of the fifth resistance (R325) is connected between the drain of the second N-channel enhancement MOS tube (Q2) and the communication interface (J3), one end of the sixth resistance (R324) is connected to 5V power supply, the other end of the sixth resistance (R324) is connected between the drain of the first N-channel enhancement MOS tube (Q1) and the communication interface, one end of the first capacitor (C174) is connected between the drain of the second N-channel enhancement MOS tube (Q2) and the communication interface (J3), the other end of the first capacitor (C174) is grounded, one end of the second capacitor (C175) is connected between the drain of the first N-channel enhancement MOS tube (Q1) and the communication interface (J3), the other end of the second capacitor (C175) is grounded.

2. The bed voice control circuit of claim 1, wherein, It also comprises an audio power amplifier unit and a loudspeaker, and the voice recognition unit, the audio power amplifier unit and the loudspeaker are sequentially electrically connected. The voice recognition unit is also used to generate an audio feedback signal based on the hospital bed control result fed back by the control circuit board. The audio power amplifier unit is used to amplify the audio feedback signal. The loudspeaker is used to play the amplified audio feedback signal.

3. The bed voice control circuit of claim 2, wherein, The audio power amplifier unit adopts an MSOP8 chip and its peripheral circuit.

4. The bed voice control circuit of claim 1, wherein, The microphone is two, and the two microphones are electrically connected with the voice conversion unit.

5. The bed voice control circuit of claim 1, wherein, The voice conversion unit adopts an ES7243 chip and its peripheral circuit.

6. The bed voice control circuit of claim 1, wherein, The voice recognition unit adopts a CSK4002 chip and its peripheral circuit.

7. A hospital bed, characterized in that It comprises the hospital bed voice control circuit of any one of claims 1-6.

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