CN111993797B - printer - Google Patents
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- CN111993797B CN111993797B CN202010774102.4A CN202010774102A CN111993797B CN 111993797 B CN111993797 B CN 111993797B CN 202010774102 A CN202010774102 A CN 202010774102A CN 111993797 B CN111993797 B CN 111993797B
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- 239000003990 capacitor Substances 0.000 claims description 59
- 238000004804 winding Methods 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 208000032365 Electromagnetic interference Diseases 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
- B41J3/445—Printers integrated in other types of apparatus, e.g. printers integrated in cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The printer comprises a power supply device, a voice acquisition device, a control device and a printing device, wherein the control device is connected with the power supply device, the voice acquisition device and the printing device, the power supply device is used for outputting power supply current to the control device and adjusting the amplitude of the power supply current according to a received adjusting instruction, the voice acquisition device is used for receiving voice information and transmitting the voice information to the control device, the control device is used for receiving data to be printed, when detecting that the voice information and the data to be printed meet preset conditions, the control device outputs an adjusting instruction to the power supply device, and the control device is further used for controlling the printing device to perform printing operation according to the voice information and the data to be printed. When the voice information and the data to be printed are detected to accord with preset conditions, the control device outputs an adjusting instruction to the power supply device to adjust the amplitude of the power supply current, so that the working current of the printer can be automatically adjusted according to actual requirements, hardware is not required to be replaced, and the use convenience of the printer is improved.
Description
Technical Field
The application belongs to the technical field of electronic appliances, and particularly relates to a printer.
Background
A printer is one of output devices of a computer, and prints a result of computer processing on a relevant medium. Currently, conventional printers include a power adapter, a control unit, and a printing unit, the control unit being powered by the power adapter, the control unit receiving electronic document material and controlling the printing unit to print the document content onto paper or other media. The power adapter adopts a power adapter with constant output current (such as 12A), when the working current of the printer needs to be improved, the working current of the printer is changed by changing the power adapter with different models, and the inconvenience is caused to the use of users. Therefore, the conventional technical scheme has a problem of low convenience in use of the printer.
Disclosure of Invention
The application aims to provide a printer and aims to solve the problem of low use convenience of the traditional printer.
A printer comprises a power supply device, a voice acquisition device, a control device and a printing device, wherein the control device is connected with the power supply device, the voice acquisition device and the printing device,
The power supply device is used for outputting power supply current to the control device and adjusting the amplitude of the power supply current according to the received adjusting instruction;
The voice acquisition device is used for receiving voice information and transmitting the voice information to the control device;
The control device is used for receiving data to be printed, outputting an adjusting instruction to the power supply device when detecting that the voice information and the data to be printed meet preset conditions, and controlling the printing device to perform printing operation according to the voice information and the data to be printed.
In one embodiment, the preset condition of the control device includes that the sound detected when the voice collecting device receives the voice information is greater than a set volume threshold value, or that the whole row of black lines is printed.
In one embodiment, the control device is further configured to perform a restart operation when detecting that the magnitude of the output current of the power supply device exceeds the rated threshold value for a preset duration after outputting the adjustment command to the power supply device, and perform a power-down operation when detecting that the magnitude of the output current of the power supply device exceeds the rated threshold value in all the restarts exceeding the set number of times.
In one embodiment, the control device comprises a controller, a display screen, a function button and a data transmission interface, wherein the controller is connected with the power supply device, the voice acquisition device and the printing device, and the display screen, the function button and the data transmission interface are all connected with the controller.
In one embodiment, the power supply device includes an EMI (Electro MAGNETIC INTERFERENCE) filter, a rectifying and filtering circuit, a transformer, an output circuit, a switching tube, a power supply control circuit, and a feedback circuit, wherein the EMI filter is connected to the rectifying and filtering circuit, the rectifying and filtering circuit is connected to a first primary winding of the transformer, the output circuit is connected to a secondary winding of the transformer and the controller, the switching tube is connected to the first primary winding of the transformer and the power supply control circuit, and the feedback circuit is connected to the output circuit and the current control circuit.
In one embodiment, the rectifying and filtering circuit includes a rectifying bridge TR1, a capacitor C3, a capacitor C4, a resistor R9 and a diode D5, where an input positive electrode of the rectifying bridge TR1 is connected to the first output end of the EMI filter, an input negative electrode of the rectifying bridge TR1 is connected to the second output end of the EMI filter, an output positive electrode of the rectifying bridge TR1 is connected to the first end of the first primary winding of the transformer and is grounded through the capacitor C3, an output negative electrode of the rectifying bridge TR1 is grounded, one end of the resistor R9 and the capacitor C4 are connected in parallel, and then the other end of the resistor R9 and the capacitor C4 are connected to the first end of the first primary winding of the transformer, the other end of the resistor is connected to the cathode of the diode D5, and an anode of the diode D5 is connected to the second end of the first primary winding of the transformer.
In one embodiment, the output circuit comprises a resistor R10, a capacitor C5, a capacitor C6 and a diode D6, wherein a first end of a secondary winding of the transformer is connected with an anode of the diode D6, a second end of the secondary winding of the transformer is grounded, a cathode of the diode D6 is connected with the controller and is grounded through the capacitor C6, the resistor R10 is connected with the capacitor C5 in series, and the other end of the resistor R10 is connected with the anode of the diode D6, and the other end of the capacitor C5 is connected with the cathode of the diode C6.
In one embodiment, the power supply device further comprises a resistor R1, a diode D1, a secondary switch D2 and a resistor R8, the power supply control circuit comprises a control chip, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C1, a capacitor C2, a diode D3 and a diode D4,
The OTP port of the control chip is grounded through the resistor R2, the GND port of the control chip is grounded, the COMP port of the control chip is connected with a feedback circuit, the HV port of the control chip is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the cathode of the diode D1 and the cathode of the diode D2, the anode of the diode D1 is connected with the second output end of the EMI filter, the anode of the diode D2 is connected with the first output end of the EMI filter, the VCC port of the control chip is connected with one end of the resistor R3 and grounded through a capacitor C1, the other end of the resistor R3 is connected with the cathode of the diode D3, the anode of the diode D3 is connected with the first end of a second primary winding of the transformer, the second end of the transformer is grounded, the cathode of the diode D4 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the first output end of the EMI filter, the VCC port of the control chip is connected with the second primary winding of the transformer through a capacitor C1, and the second end of the resistor C7 is connected with the second primary winding of the transformer through a capacitor C8.
In one embodiment, the feedback circuit includes a resistor R11, a resistor R12, a resistor R13, a capacitor C5, a capacitor C7, an optocoupler, and a TL431 device, one end of the resistor R11 is connected to one end of the resistor R12 and the output circuit, the other end of the resistor R11 is connected to an input end of a transmitting portion of the optocoupler, an output end of the transmitting portion of the optocoupler is connected to an input end of the TL431 device, an output end of the TL431 device is grounded, the other end of the resistor R12 is connected to a reference end of the TL431 device and one end of the resistor R13, the other end of the resistor R13 is grounded, one end of the capacitor C7 is connected to an input end of the 431 device, the other end of the capacitor C7 is connected to a common end of the resistor R12 and the resistor R13, an input end of a receiving portion of the optocoupler is connected to the power supply control circuit and is grounded through the capacitor C5, and an output end of the receiving portion of the optocoupler is grounded.
In one embodiment, the voice acquisition device comprises a microphone, a filter circuit, an analog-to-digital conversion circuit and a decoding circuit, wherein the microphone is connected with the analog-to-digital conversion circuit through the filter circuit, and the decoding circuit is connected with the analog-to-digital conversion circuit and the controller.
Compared with the prior art, the printer has the beneficial effects that the printer receives the data to be printed and the voice information acquired by the voice acquisition device through the control device, and the printing device is controlled to perform printing operation according to the voice information and the data to be printed. When the voice information and the data to be printed are detected to meet the preset conditions, the control device outputs an adjusting instruction to the power supply device to adjust the amplitude of the power supply current, so that the working current of the printer can be automatically adjusted by changing the output current of the power supply device according to actual requirements, hardware is not required to be replaced, and the convenience of use of the printer is improved.
Drawings
FIG. 1 is a schematic diagram of a printer according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a control device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a power supply device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a voice capturing device according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In one embodiment, there is provided a printer, as shown in fig. 1, including a power supply device 100, a voice acquisition device 200, a control device 300, and a printing device 400, the control device 300 being connected to the power supply device 100, the voice acquisition device 200, and the printing device 400. The power supply device 100 is used for outputting power supply current to the control device 300 and adjusting the amplitude of the power supply current according to the received adjusting instruction, the voice acquisition device 200 is used for receiving voice information and transmitting the voice information to the control device 300, the control device 300 is used for receiving data to be printed, when detecting that the voice information and the data to be printed meet preset conditions, the adjusting instruction is output to the power supply device 100, and the control device 300 is also used for controlling the printing device 400 to perform printing operation according to the voice information and the data to be printed.
Specifically, the power supply device 100 may use a switching power supply, convert an external power supply into a stable power supply current according to a setting parameter, and output the stable power supply current to the control device 300 for power supply, so that the control device 300 can perform a printing job. The control device 300 may be connected to the host computer through a data transmission interface, and receives the data to be printed issued by the host computer, and receives the voice information obtained by recording by the voice acquisition device 200. The user can select a printing mode of the printer by inputting an instruction and control whether the voice capture device 200 operates. For example, when the printer is set to the normal mode, the control device 300 selects the material to be printed and prints onto paper or other media by the printing device 400. When the printer is set to the voice print mode, the control device 300 causes the voice capture device 200 to operate for voice capture. The control device 300 selects the voice information recorded by the voice acquisition device 200, converts the voice information into a printed text, and prints the printed text on paper or other media through the printing device 400.
Further, the control device 300 may set priority levels for the material to be printed and the voice information in advance, and execute the printing operation according to the stored priority levels. For example, when the voice capturing apparatus 200 is operated, the control apparatus 300 receives the voice information recorded by the voice capturing apparatus 200, and preferentially converts the voice information into a print text for printing. If the voice acquisition device 200 does not work and the control device 300 does not receive voice information, the control device 300 prints the received data to be printed. The specific structure of the printing device 400 is different according to the type of the printer, and the printing device 400 may include a nozzle, a driving mechanism and an ink supply device, where the nozzle is disposed on the driving mechanism and connected with the ink supply device, for example, an inkjet printer is taken as an example. The control device 300 is connected with the driving mechanism and the nozzle, and controls the driving mechanism to drive the nozzle to move according to the data to be printed, and controls the nozzle to jet ink, so that texts, patterns and the like are printed on the medium.
The control device 300 also detects whether the voice information and the data to be printed meet the preset conditions according to the voice information and the data to be printed in the process of executing the printing operation, and outputs an adjusting instruction to the power supply device 100 when detecting that the voice information and the data to be printed meet the preset conditions, so as to control the power supply device 100 to adjust the amplitude of the power supply current, for example, increase or decrease the amplitude of the power supply current. The specific content of the preset condition is not unique, and the preset condition can be set according to actual requirements. Specifically, when the voice information and the data to be printed do not meet the preset conditions, the power supply device 100 outputs a stable initial current to supply power to the control device 300 according to the setting parameters, so that the control device 300 can meet the normal working requirements. When the voice information and the data to be printed are detected to meet the preset conditions, the printer can be considered to need larger working current to execute the printing operation, at this time, the control device 300 outputs a control instruction to the power supply device 100, and the power supply device 100 increases the amplitude of the output current, so that the control device 300 can drive the printing device 400 to print the content to be printed at this time, for example, when the thickened text or the whole black line is required to be printed, the output current of the power supply device 100 is increased to ensure that the printer can complete the printing operation, and the high current requirement of the printer is met. It can be understood that, when it is detected that the voice information and the data to be printed do not meet the preset conditions again, or the power supply device 100 increases the output current amplitude for a set period of time, the control device 300 may also stop outputting the control command, and the power supply device 100 returns to output the initial current to supply power to the control device 300, so as to avoid damaging the internal circuits and devices of the printer by long-time heavy current power supply.
The printer receives the data to be printed and the voice information collected by the voice collection device 200 through the control device 300, and controls the printing device 400 to perform printing operation according to the voice information and the data to be printed. When the voice information and the data to be printed are detected to meet the preset conditions, the control device 300 outputs an adjusting instruction to the power supply device 100 to adjust the amplitude of the power supply current, so that the working current of the printer can be automatically adjusted by changing the output current of the power supply device 100 according to actual requirements, hardware is not required to be replaced, and the use convenience of the printer is improved.
In one embodiment, the preset condition includes that the sound detected when the voice information is received by the voice acquisition device 200 is greater than a set volume threshold, or that an entire line of black lines is printed. Specifically, the specific value of the volume threshold is not unique, and can be set according to actual requirements. When the voice acquisition device 200 performs voice acquisition, the voice of the user can be analyzed according to the sensed amplitude of the electric signal, if the voice of the user is determined to be greater than the set volume threshold, the control device 300 outputs a control instruction to enable the power supply device 100 to increase the amplitude of the output current, so that the control device 300 performs special processing when driving the printing device 400 to perform printing operation, such as thickening, increasing fonts or underlining the text corresponding to the voice of the user at this time, thereby achieving the purpose of highlighting the key point and meeting the high current requirement of the printer. In addition, when the control device 300 prints the data to be printed, if the need of printing the whole black line is detected, the control command can be output to enable the power supply device 100 to increase the amplitude of the output current, so that the control device 300 can drive the printing device 400 to perform the printing operation, and the high current requirement of the printer is met.
In one embodiment, the control device 300 is further configured to perform a restart operation when detecting that the magnitude of the output current of the power supply device 100 exceeds the rated threshold value for a preset period of time after outputting the adjustment command to the power supply device 100, and perform a power-down operation when detecting that the magnitude of the output current of the power supply device 100 exceeds the rated threshold value in all the restarts exceeding the set number of times.
Specifically, the specific value of the rated threshold is not unique, and if the output current amplitude of the power supply device 100 exceeds the rated threshold, the control device 300 may be considered to operate in the peak state. When the duration of the control device 300 operating in the peak state exceeds the preset duration, the control device 300 is restarted, so that the power supply device 100 outputs the initial current to supply power to the control device 300 again according to the set dynamic parameters, and the internal chip damage caused by the long-time operation of the control device 300 in the peak state is avoided. In this embodiment, the preset duration is 3 seconds.
Further, when the magnitude of the output current of the power supply device 100 exceeds the rated threshold value in the restarting process exceeding the set number, it is indicated that the control device 300 works in the peak state in the restarting process exceeding the set number, and at this time, the control device 300 performs the power-down operation to control the power supply device 100 to stop supplying power, so as to prevent the circuit elements from being damaged or even firing, and improve the use safety of the printer. In this embodiment, the number of times is set to 3.
In one embodiment, as shown in fig. 2, the control device 300 includes a controller 310, a display 320, a function button 330 and a data transmission interface 340, the controller 310 is connected to the power supply device 100, the voice acquisition device 200 and the printing device 400, and the display 320, the function button 330 and the data transmission interface 340 are all connected to the controller 310. The controller 310 may adopt an MCU (Micro Control Unit ), the display screen 320 may specifically select an LED (LIGHT EMITTING Diode) display screen, and the data transmission interface 340 may include an RS232 interface and a USB (Universal Serial Bus ) interface, where the RS232 interface is used to connect to an upper computer, and the USB is used to connect to a USB disk. The user can transmit the data to be printed to the controller 310 through the upper computer or the USB flash disk according to the actual situation, and the controller 310 controls the printing device 400 to perform printing operation according to the received voice information and the data to be printed. The user may set the operation mode of the printer, for example, the normal mode or the voice printing mode, through the function buttons 330, and may set the operation parameters of the power supply device 100, for example, control the magnitude of the initial current output by the power supply device 100, through the function buttons 330. The display 320 may be used to display information such as the operating mode or operating current of the printer for viewing by a user.
In one embodiment, as shown in fig. 3, the power supply apparatus 100 includes an EMI filter 110, a rectifying and filtering circuit 120, a transformer T1, a power supply control circuit 130, an output circuit 140, a switching tube Q1, and a feedback circuit 150, where the EMI filter 110 is connected to the rectifying and filtering circuit 120, the rectifying and filtering circuit 120 is connected to a first primary winding of the transformer T1, the output circuit 140 is connected to a secondary winding of the transformer and the controller 310, the switching tube Q1 is connected to the first primary winding of the transformer T1 and the power supply control circuit 130, and the feedback circuit 150 is connected to the output circuit 140 and the current control circuit 130. Wherein, the switching tube Q1 can be an MSO tube.
After passing through the EMI filter 110, the externally connected alternating current is rectified and filtered by the rectifying and filtering circuit 120 and then is sent to the first primary winding of the transformer T1, and a PWM (Pulse Width Modulation ) signal is output by the power supply control circuit 130 to control the on-off of the switching tube Q1, so that the secondary winding of the transformer T1 generates an induced voltage, and is rectified and filtered by the output circuit 140 and then is output to the controller 310 to supply power. The feedback circuit 150 samples the voltage output from the output circuit 140 and feeds back the obtained sampling result to the power supply control circuit 130, and the power supply control circuit 130 changes the duty ratio of the PWM signal according to the sampling result, thereby making the output current of the power supply device 100 constant.
When the controller 310 detects that the voice information and the data to be printed meet the preset conditions, a control command is output to the power supply control circuit 130, and the power supply control circuit 130 increases the frequency of the PWM signal after receiving the control command, thereby increasing the amplitude of the output current of the power supply device 100, and meeting the high current requirement of the printer.
The specific structure of the rectifying and filtering circuit 110 is not unique, in one embodiment, the rectifying and filtering circuit 120 includes a rectifying bridge TR1, a capacitor C3, a capacitor C4, a resistor R9 and a diode D5, where an input positive electrode of the rectifying bridge TR1 is connected to a first output end of the EMI filter 110, an input negative electrode of the rectifying bridge TR1 is connected to a second output end of the EMI filter 110, an output positive electrode of the rectifying bridge TR1 is connected to a first end of a first primary winding of the transformer T1 and is grounded through the capacitor C3, an output negative electrode of the rectifying bridge TR1 is grounded, one end of the resistor R9 and the capacitor C4 are connected in parallel, and then the other end of the resistor R9 and the capacitor C4 are connected to a first end of the first primary winding of the transformer T1, and the other end of the resistor D5 is connected to a cathode of the diode D5, and an anode of the diode D5 is connected to a second end of the first primary winding of the transformer T1. The rectifier bridge TR1 may be a full-bridge rectifier bridge, rectifies the ac output by the EMI filter 110, filters the ac impurities by the capacitor C3, and sends the ac impurities to the first primary winding of the transformer T1. The capacitor C4, the resistor R9 and the diode D5 are used for suppressing voltage spikes generated by the transformer T1.
In one embodiment, the output circuit 140 includes a resistor R10, a capacitor C5, a capacitor C6, and a diode D6, wherein a first end of a secondary winding of the transformer T1 is connected to an anode of the diode D6, a second end of the secondary winding of the transformer T1 is grounded, a cathode of the diode D6 is connected to the controller 310 and is grounded through the capacitor C6, the resistor R10 is connected in series with the capacitor C5, and the other end of the resistor R10 is connected to the anode of the diode D6, and the other end of the capacitor C5 is connected to the cathode of the diode C6.
In one embodiment, with continued reference to fig. 3, the power supply device 100 further includes a resistor R1, a diode D1, a secondary switch D2, and a resistor R8, and the power supply control circuit 130 includes a control chip U1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C1, a capacitor C2, a diode D3, and a diode D4. The control chip U1 may be an LD5760G2 chip.
The OTP port of the control chip U1 is grounded through a resistor R2, the GND port of the control chip U1 is grounded, the COMP port of the control chip U1 is connected with a feedback circuit 150, the HV port of the control chip U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the cathode of a diode D1 and the cathode of a diode D2, the anode of the diode D1 is connected with the second output end of an EMI filter 110, the anode of the diode D2 is connected with the first output end of the EMI filter 110, the VCC port of the control chip U1 is connected with one end of a resistor R3 and is grounded through a capacitor C1, the other end of the resistor R3 is connected with the cathode of the diode D3, the anode of the diode D3 is connected with the anode of a first end of a transformer T1, the second end of the second primary winding of the transformer T1 is grounded, the cathode of the diode D4 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with the CS port of the control chip U1, the OUT port of the control chip U1 is connected with the control end of a switch Q1 through a resistor R4 and is grounded through a resistor R6, and the first end of the switch Q1 is connected with the first end of the Q1 through the second primary winding of the resistor C1 and the second end of the switch Q1 is grounded through the second end of the resistor C1.
The control chip U1 changes the duty ratio of the PWM signal output by the OUT port according to the sampling result fed back by the feedback circuit 150, thereby causing the output circuit 140 to output a constant current. In addition, the COMP port of the control chip U1 may be connected to the controller 310, and when receiving a control instruction sent by the controller 310, the frequency of the PWM signal is increased, so as to increase the switching frequency of the switching tube Q1 (for example, from conventional 65kHz to 130 kHz), increase the frequency of the primary winding of the transformer T1, further increase the output current of the secondary winding of the transformer, and meet the high current requirement of the printer.
In one embodiment, the feedback circuit 150 includes a resistor R11, a resistor R12, a resistor R13, a capacitor C5, a capacitor C7, optocouplers OC1 and TL431 devices, where one end of the resistor R11 is connected to one end of the resistor R12 and the output circuit 140, and specifically connected to the cathode of the diode D6 in the output circuit 140. The other end of the resistor R11 is connected with the input end of the emitting part of the optical coupler OC1, the output end of the emitting part of the optical coupler OC1 is connected with the input end of the TL431 device, the output end of the TL431 device is grounded, the other end of the resistor R12 is connected with the reference end of the TL431 device and one end of the resistor R13, the other end of the resistor R13 is grounded, one end of the capacitor C7 is connected with the input end of the TL431 device, the other end of the capacitor C7 is connected with the common end of the resistor R12 and the resistor R13, the input end of the receiving part of the optical coupler OC1 is connected with the power supply control circuit 130, the input end of the receiving part of the optical coupler OC1 is grounded through the capacitor C5, and the output end of the receiving part of the optical coupler OC1 is grounded.
The specific structure of the voice acquisition device 200 is also not unique, and in one embodiment, as shown in fig. 4, the voice acquisition device 200 includes a microphone 210, a filter circuit 220, an analog-to-digital conversion circuit 230, and a decoding circuit 240, where the microphone 210 is connected to the analog-to-digital conversion circuit 230 through the filter circuit 220, and the decoding circuit 240 is connected to the analog-to-digital conversion circuit 230 and the controller 310. The microphone 210 collects the voice analog signal, the filtering circuit 220 processes the voice analog signal, the analog-to-digital conversion circuit 230 performs analog-to-digital conversion to obtain a digital signal, and the decoding circuit 240 converts the digital signal into a corresponding text code and sends the corresponding text code to the controller 310. The controller 310 generates a print text according to the received text code and controls the printing apparatus 400 to perform a printing operation according to the print text.
The foregoing embodiments are merely illustrative of the technical solutions of the present application, and not restrictive, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. A printer is characterized by comprising a power supply device, a voice acquisition device, a control device and a printing device, wherein the control device is connected with the power supply device, the voice acquisition device and the printing device,
The power supply device is used for outputting power supply current to the control device and adjusting the amplitude of the power supply current according to the received adjusting instruction;
The voice acquisition device is used for receiving voice information and transmitting the voice information to the control device;
The control device is used for receiving data to be printed, outputting an adjusting instruction to the power supply device when detecting that the voice information and the data to be printed meet preset conditions, and controlling the printing device to perform printing operation according to the voice information and the data to be printed;
When the voice information and the data to be printed do not accord with preset conditions, the power supply device outputs stable initial current to supply power to the control device according to set parameters, so that the control device can meet normal working requirements;
the preset conditions comprise that the sound detected when the voice acquisition device receives voice information is larger than a set volume threshold value or a whole row of black lines are printed;
the control device is also used for restarting the power supply device when detecting that the amplitude of the output current of the power supply device exceeds the rated threshold value and lasts for a preset time after outputting the adjusting instruction to the power supply device, and powering down the power supply device when detecting that the amplitude of the output current of the power supply device exceeds the rated threshold value in restarting for more than a set number of times;
The control device comprises a controller, a display screen, a function button and a data transmission interface, wherein the controller is connected with the power supply device, the voice acquisition device and the printing device, and the display screen, the function button and the data transmission interface are all connected with the controller;
The power supply device comprises an EMI filter, a rectifying and filtering circuit, a transformer, an output circuit, a switch tube, a power supply control circuit and a feedback circuit, wherein the EMI filter is connected with the rectifying and filtering circuit, the rectifying and filtering circuit is connected with a first primary winding of the transformer, the output circuit is connected with a secondary winding of the transformer and the controller, the switch tube is connected with the first primary winding of the transformer and the power supply control circuit, and the feedback circuit is connected with the output circuit and the current control circuit.
2. The printer of claim 1, wherein the rectifying and filtering circuit comprises a rectifying bridge TR1, a capacitor C3, a capacitor C4, a resistor R9 and a diode D5, wherein an input positive electrode of the rectifying bridge TR1 is connected to the first output end of the EMI filter, an input negative electrode of the rectifying bridge TR1 is connected to the second output end of the EMI filter, an output positive electrode of the rectifying bridge TR1 is connected to the first end of the first primary winding of the transformer and is grounded through the capacitor C3, an output negative electrode of the rectifying bridge TR1 is grounded, one end of the resistor R9 and the capacitor C4 after being connected in parallel is connected to the first end of the first primary winding of the transformer, the other end of the resistor R9 is connected to the cathode of the diode D5, and an anode of the diode D5 is connected to the second end of the first primary winding of the transformer.
3. The printer of claim 1 wherein said output circuit comprises a resistor R10, a capacitor C5, a capacitor C6 and a diode D6, a first end of a secondary winding of said transformer is connected to an anode of said diode D6, a second end of said secondary winding of said transformer is grounded, a cathode of said diode D6 is connected to said controller and is grounded through said capacitor C6, said resistor R10 is connected in series with said capacitor C5, and the other end of said resistor R10 is connected to an anode of said diode D6, and the other end of said capacitor C5 is connected to a cathode of said diode C6.
4. The printer of claim 1, wherein the power supply means further comprises a resistor R1, a diode D2, and a resistor R8, the power supply control circuit comprises a control chip, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C1, a capacitor C2, a diode D3, and a diode D4,
The OTP port of the control chip is grounded through the resistor R2, the GND port of the control chip is grounded, the COMP port of the control chip is connected with a feedback circuit, the HV port of the control chip is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the cathode of the diode D1 and the cathode of the diode D2, the anode of the diode D1 is connected with the second output end of the EMI filter, the anode of the diode D2 is connected with the first output end of the EMI filter, the VCC port of the control chip is connected with one end of the resistor R3 and grounded through a capacitor C1, the other end of the resistor R3 is connected with the cathode of the diode D3, the anode of the diode D3 is connected with the first end of a second primary winding of the transformer, the second end of the transformer is grounded, the cathode of the diode D4 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the first output end of the EMI filter, the VCC port of the control chip is connected with the second primary winding of the transformer through a capacitor C1, and the second end of the resistor C7 is connected with the second primary winding of the transformer through a capacitor C8.
5. The printer of claim 1 wherein the feedback circuit comprises a resistor R11, a resistor R12, a resistor R13, a capacitor C5, a capacitor C7, an optocoupler and a TL431 device, wherein one end of the resistor R11 is connected with one end of the resistor R12 and the output circuit, the other end of the resistor R11 is connected with the input end of the transmitting part of the optocoupler, the output end of the transmitting part of the optocoupler is connected with the input end of the TL431 device, the output end of the TL431 device is grounded, the other end of the resistor R12 is connected with the reference end of the TL431 device and one end of the resistor R13, the other end of the resistor R13 is grounded, one end of the capacitor C7 is connected with the input end of the TL431 device, the other end of the capacitor C7 is connected with the common end of the resistor R12 and the resistor R13, the input end of the receiving part of the optocoupler is connected with the power supply control circuit and grounded through the capacitor C5, and the output end of the receiving part of the optocoupler is grounded.
6. The printer of claim 1, wherein the voice acquisition device comprises a microphone, a filter circuit, an analog-to-digital conversion circuit, and a decoding circuit, the microphone being connected to the analog-to-digital conversion circuit through the filter circuit, the decoding circuit being connected to the analog-to-digital conversion circuit and the control device.
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| CN202010774102.4A CN111993797B (en) | 2020-08-04 | 2020-08-04 | printer |
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| CN202010774102.4A CN111993797B (en) | 2020-08-04 | 2020-08-04 | printer |
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| US7843484B2 (en) * | 2005-05-09 | 2010-11-30 | Silverbrook Research Pty Ltd | Mobile telecommunication device having a printer for printing connection history information |
| CN204659217U (en) * | 2015-04-21 | 2015-09-23 | 南京途希通讯有限公司 | A kind of voice printer |
| CN105322803B (en) * | 2015-11-02 | 2018-03-06 | 深圳创维－Rgb电子有限公司 | Constant pressure and flow synchronism output power supply and television set |
| CN210454153U (en) * | 2019-05-06 | 2020-05-05 | 河北美达罗捷数码科技有限公司 | Order printer and printing system |
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