CN208283779U - A kind of B ultrasound single-chip computer control system of miniaturization - Google Patents

Abstract

The utility model discloses a kind of B ultrasound single-chip computer control systems of miniaturization, including adapter, battery, probe, keypad and B ultrasound monolithic processor control device；The adapter, battery, probe, keypad are all connected with B ultrasound monolithic processor control device；The B ultrasound monolithic processor control device charges to battery according to the supply voltage that adapter inputs, adapter power supply or battery power supply are selected according to the access state of adapter, according to the light on and off of indicator light built in current working state control, to show current working condition；B ultrasound monolithic processor control device starts switch signal control button plate output main power source according to what keypad inputted；The push button signalling of working state signal, the probe signal of probe and keypad is exported into display.Compared with existing B ultrasound single-chip computer control system, partial circuit and interface are eliminated, circuit is simpler.

Description

A kind of B ultrasound single-chip computer control system of miniaturization

Technical field

The utility model relates to electronic technology field, in particular to the B ultrasound single-chip computer control system of a kind of miniaturization.

Background technique

Existing B ultrasound single-chip computer control system is as shown in Figure 1, alternating current is transmitted to charging circuit by adapter fills to battery Electricity, electric quantity acquisition circuit obtain the charge value of battery and are transmitted to PC(personal computer) system, pass through power switching Circuit may be selected to be powered by the direct output supply voltage of alternating current or cell powers power voltage supply, main switch are electric by power supply Pressure is transmitted to B ultrasound mainboard and instruction system.Keypad exports corresponding key value according to the button operation of user and gives PC system, visits The image transmitting that head is acquired gives PC system.Instruction system realizes standby instruction, charging according to the light on and off state of different LED light It indicates and full of instruction.It will be seen from figure 1 that the circuit of existing B ultrasound single-chip computer control system is more complicated, the electronics that uses Device is more, the PCB editions more complex and higher costs of design.

Thus the prior art could be improved and improve.

Utility model content

Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of B ultrasound lists of miniaturization Piece machine control system, the circuit to solve the problems, such as existing B ultrasound single-chip computer control system are more complicated.

In order to achieve the above object, the utility model takes following technical scheme:

A kind of B ultrasound single-chip computer control system of miniaturization, including adapter, battery and probe, further include keypad and B Super monolithic processor control device；The adapter, battery, probe, keypad are all connected with B ultrasound monolithic processor control device；

The B ultrasound monolithic processor control device charges to battery according to the supply voltage that adapter inputs, according to adapter Access state selects adapter power supply or battery power supply, according to the light on and off of indicator light built in current working state control, with aobvious Show current working condition；

B ultrasound monolithic processor control device starts switch signal control button plate output main power source according to what keypad inputted；It will The push button signalling of working state signal, the probe signal of probe and keypad exports display.

In the B ultrasound single-chip computer control system of the miniaturization, the B ultrasound monolithic processor control device include: charging circuit, Single chip machine controlling circuit, B ultrasound mainboard and PC system；The charging circuit connects single chip machine controlling circuit, adapter, battery and presses Keypad, single chip machine controlling circuit connect keypad, PC system and probe, the B ultrasound mainboard connection PC system and keypad；

Supply voltage is converted to charging current as battery charging by the charging circuit, and charging circuit is according to power input shape State carries out adapter power supply and battery powered switching automatically, and working state signal is also fed back to single chip machine controlling circuit；

Single chip machine controlling circuit controls the light on and off of built-in indicator light after sampling to working state signal, current to show Working condition；Main power source is switched to by single chip machine controlling circuit according to the signal control button plate that starts switch that keypad inputs B ultrasound mainboard and PC system；Single chip machine controlling circuit is by working state signal, the push button signalling of the probe signal of probe and keypad Output to PC system is shown after formatting.

In the B ultrasound single-chip computer control system of the miniaturization, the charging circuit includes charhing unit and state-detection Unit: the charhing unit connection state detection unit, adapter, battery and keypad；

Supply voltage is converted to charging current as battery charging by the charhing unit, and in test adaptor access, It is switched to adapter power supply；Battery power supply is switched to when detection is without adapter access；

The corresponding level of charging current generation that the state detection unit is exported according to charging chip fills power detection signal, According to the adapter detection signal for connecing disconnected state and generating corresponding level of adapter, the also current electricity of acquisition battery and generation pair The battery capacity of level is answered to detect signal.

In the B ultrasound single-chip computer control system of the miniaturization, the state detection unit includes first resistor, the second electricity Resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first capacitor, the second capacitor and Third capacitor；

The first resistor one end connection second resistance one end and charhing unit output end, first resistor it is another One end of end connection first capacitor and single chip machine controlling circuit, the other end of second resistance and the other end of first capacitor connect Ground, the power input of one end connection adapter of 3rd resistor, the other end of 3rd resistor connect the 4th resistance one end and The other end of one end of the 5th resistance, the 5th resistance connects one end and the single chip machine controlling circuit of the second capacitor, the 4th resistance The other end of the other end and the second capacitor is grounded, and one end of the 6th resistance connects battery, the other end connection of the 6th resistance the One end of one end of seven resistance and the 8th resistance, one end of the other end connection third capacitor of the 8th resistance and single-chip microcontroller control electricity Road, the other end of the 7th resistance and the other end of third capacitor are grounded.

In the B ultrasound single-chip computer control system of the miniaturization, the single chip machine controlling circuit includes single-chip microcontroller, instruction list Member and communication unit；

The single-chip microcontroller, which exports corresponding condition indicative signal after sampling to working state signal, to be come in control instructions unit The light on and off of corresponding indicator light；

Single-chip microcontroller starts switch signal output main switch signal come the conducting of control button plate, with defeated according to what keypad inputted Main power source is to B ultrasound mainboard and PC system out；

Single-chip microcontroller also pass through communication unit by the push button signalling of working state signal, the probe signal of probe and keypad into Output to PC system is shown after row format conversion.

In the B ultrasound single-chip computer control system of the miniaturization, the model STC15W401AS of the single-chip microcontroller is described The 1st foot, the 7th foot, the 16th foot of single-chip microcontroller are all connected with indicating unit；The other end of the 3rd foot connection first resistor of single-chip microcontroller, it is single 4th foot of piece machine connects the other end of the 8th resistance, and the 2nd foot of single-chip microcontroller and the 5th foot are all connected with probe, the 6th foot of single-chip microcontroller Feeder ear is connected, the 9th foot, the 10th foot and the 13rd foot of single-chip microcontroller are all connected with communication unit, the 11st foot of single-chip microcontroller and the 15th foot It is all connected with keypad, the 12nd foot of single-chip microcontroller connects the other end of the 5th resistance, and the 14th foot of single-chip microcontroller connects battery-end.

In the B ultrasound single-chip computer control system of the miniaturization, the indicating unit include the 9th resistance, the tenth resistance, Eleventh resistor, is full of indicator light and standby indicating lamp at charging indicator light；

The anode connection of the charging indicator light is full of the anode and feeder ear of the anode of indicator light, standby indicating lamp；It fills The cathode of electric indicator light connects the 1st foot of single-chip microcontroller by the 9th resistance, and the cathode full of indicator light is connected by the tenth resistance 16th foot of single-chip microcontroller, the cathode of standby indicating lamp connect the 7th foot of single-chip microcontroller by eleventh resistor.

In the B ultrasound single-chip computer control system of the miniaturization, the communication unit includes interface, communication chip, the tenth Two resistance, thirteenth resistor, the 14th resistance, the 4th capacitor and the 5th capacitor；

For the REGIN foot of the communication chip by the 5th capacity earth, the REGIN foot of communication chip is also connected with the of interface 1 foot, communication chip /RST foot and VBUS foot；The VDD foot of communication chip is connected by the 4th capacity earth, the D+ foot of communication chip The TXD foot of 3rd foot of connection interface, the 2nd foot of the D- foot connecting interface of communication chip, communication chip is connected by thirteenth resistor 9th foot of single-chip microcontroller, the RXD foot of communication chip connect the 10th foot of single-chip microcontroller by the 14th resistance, and the 1st foot of interface passes through 13rd foot of twelfth resistor connection single-chip microcontroller.

In the B ultrasound single-chip computer control system of the miniaturization, the keypad start switch circuit include start key, Metal-oxide-semiconductor, triode, the 15th resistance, the 16th resistance and the 17th resistance；

1st foot of the start key and the 3rd foot are；The 4th foot, the 15th electricity of the 2nd foot connection start key of start key One end of resistance and the 11st foot of single-chip microcontroller；The other end connection output end of charhing unit of 15th resistance, the source electrode of metal-oxide-semiconductor and The grid of one end of the 16th resistance, metal-oxide-semiconductor connects the other end of the 16th resistance and the collector of triode, the leakage of metal-oxide-semiconductor Pole connects main power source end, and the base stage of triode connects the 15th foot of single-chip microcontroller by the 17th resistance.

Compared to the prior art, the B ultrasound single-chip computer control system of miniaturization provided by the utility model, including adapter, Battery, probe, keypad and B ultrasound monolithic processor control device；The adapter, battery, probe, keypad are all connected with B ultrasound monolithic Machine control device；The B ultrasound monolithic processor control device charges to battery according to the supply voltage that adapter inputs, according to adapter Access state selection adapter power supply or battery power supply, according to the light on and off of indicator light built in current working state control, with Show current working condition；B ultrasound monolithic processor control device according to keypad input to start switch signal control button plate defeated Main power source out；The push button signalling of working state signal, the probe signal of probe and keypad is exported into display.With existing B ultrasound list Piece machine control system is compared, and partial circuit and interface are eliminated, and circuit is simpler.

Detailed description of the invention

Fig. 1 is the schematic diagram of existing B ultrasound single-chip computer control system.

Fig. 2 is the structural block diagram of the B ultrasound single-chip computer control system of miniaturization provided by the utility model.

Fig. 3 is the circuit diagram of charhing unit in charging circuit provided by the utility model.

Fig. 4 is the circuit diagram of state detection unit in charging circuit provided by the utility model.

Fig. 5 is the circuit diagram of single-chip microcontroller in single chip machine controlling circuit provided by the utility model.

Fig. 6 is the circuit diagram of indicating unit in single chip machine controlling circuit provided by the utility model.

Fig. 7 is the circuit diagram of communication unit in single chip machine controlling circuit provided by the utility model.

Fig. 8 is the circuit diagram of keypad provided by the utility model.

Specific embodiment

The utility model provides a kind of B ultrasound single-chip computer control system of miniaturization, to existing B ultrasound monolithic processor control device Circuit improve, save partial function circuit and replace with the circuit more simplified, to reduce corresponding circuit module And electronic device, to save cost.To keep the purpose of this utility model, technical solution and effect clearer, clear, join below Embodiment is developed simultaneously to the utility model further description according to attached drawing.It should be appreciated that specific embodiment described herein is only To explain the utility model, it is not used to limit the utility model.

Referring to Fig. 2, the B ultrasound single-chip computer control system of miniaturization provided by the embodiment of the utility model includes B ultrasound monolithic Machine control device, the adapter of 19V, battery, keypad and probe.The B ultrasound monolithic processor control device include charging circuit 10, Single chip machine controlling circuit 20, B ultrasound mainboard 30 and PC system 40.The charging circuit 10 connects single chip machine controlling circuit 20, adaptation Device, battery and keypad, single chip machine controlling circuit 20 connect keypad, PC system 40 and probe, and the B ultrasound mainboard 30 connects PC System 40 and keypad.

The supply voltage AVDD for the 19V that adapter inputs is converted to charging current and filled for battery by the charging circuit 10 Electricity.Charging circuit 10 carries out adapter power supply and battery powered switching according to power input status automatically, also by working condition Signal (including filling power detection signal CSD, adapter detection signal AD and battery capacity detection signal BT) feeds back to single-chip microcontroller control Circuit 20 processed.Single chip machine controlling circuit 20 carries out the light on and off of the built-in indicator light of control after AD sampling to working state signal, with aobvious Show current working condition.Output starts switch signal SOFT_START_S, the list when keypad detection start key is pressed Piece machine control circuit exports main switch signal MAIN_S control button plate for main electricity according to signal SOFT_START_S is started switch Source MP_OUT is switched to B ultrasound mainboard 30 and PC system 40.PC system 40 enter supersonic boundary surface after with single chip machine controlling circuit 20 into Row handshake communication, single chip machine controlling circuit 20 is by working state signal, probe signal (including the identification signal of probe feedback Whether probe(detection probe plugs) and what type identification signal one_wrie(identification plugged is any probe)) and keypad The push button signalling that upper each key is pressed formats rear outputting data signals to PC system 40 and shows.

The present embodiment eliminates power switching circuit and electric quantity acquisition circuit compared with existing B ultrasound single-chip computer control system, Adapter power supply and battery powered switching are carried out by charging circuit；Meanwhile corresponding battery electricity directly is exported from charging circuit Amount detection signal is sampled and is shown to single chip machine controlling circuit.The present embodiment eliminates that soft to open circuit (existing by LTC2954 Chip controls), the connection of main power source MP_OUT is directly controlled according to the start key on keypad by single chip machine controlling circuit.This Embodiment eliminates instruction system (being made of LM358 comparison circuit), and indicating section directly controls corresponding instruction by single-chip microcontroller Lamp.

The present embodiment has reduced the number of the interface of existing PC system, eliminates the interface with keypad and probe connection.Due to connecing Mouth is few, and without RS232 interface, avoids the need for being extended the problem for leading to circuit complexity with USB-HUB.Probe and keypad Signal passes through single channel RS232 interface or USB interface (i.e. PC system and single-chip microcontroller control after directly being handled by single chip machine controlling circuit Data-signal is carried out by TXD_MCU, RXD_MCU between circuit to interactively communicate) it is uploaded to PC system, keep circuit layout simpler It is single.

The present embodiment is optimized entire super by carrying out circuit structure recombination and improvement to existing B ultrasound single-chip computer control system Acoustic control system, circuit is simpler, cost reduces, debugging is convenient, availability is high, easy to produce.

Also referring to Fig. 3 and Fig. 4, the charging circuit 10 includes charhing unit 110 and state detection unit 120；Institute State 110 connection state detection unit 120 of charhing unit, adapter, battery and keypad；The charhing unit 110 is electric by power supply Pressure is converted to charging current for battery charging, and in test adaptor access, is switched to adapter power supply；Detection is without adapter Battery power supply is switched to when access.The state detection unit 120 is generated according to the charging current that charging chip U1 is exported and is corresponded to Level fills power detection signal CSD, according to the adapter detection signal AD for connecing disconnected state and generating corresponding level of adapter, obtains The current electricity of battery and the battery capacity detection signal BT for generating corresponding level.

In the present embodiment, the charhing unit 110 includes the charging chip U1 of model MAX1873, switching tube Qa(model For SI4459ADY), inductance L, first resistor device Ra1, second resistor Ra2,3rd resistor device Ra3, the first filter capacitor Ca1, Second filter capacitor Ca2, third filter capacitor Ca3, the 4th filter capacitor Ca4；The DCIN foot connection of the charging chip U1 is suitable The output end DC_IN of orchestration, one end of first resistor device Ra1 and charging chip U1 CSSP foot；The IOUT foot of charging chip U1 Connect the output end (for exporting supply voltage MAX_OUT) of charhing unit, one end of 3rd resistor device Ra3 and the second filtered electrical Hold one end of Ca2, the other end of 3rd resistor device Ra3 passes through the another of first filter capacitor Ca1 the second filter capacitor of connection Ca2 End and ground；The CSSN foot of charging chip U1 connects the 1st foot and load end of the other end of first resistor device Ra1, switching tube Qa SYSTEM_LOAD；The EXT foot connection of the 2nd foot and the 3rd foot of the 1st foot connection switch pipe Qa of switching tube Qa, charging chip U1 is opened The 4th foot of pipe Qa is closed, the 5th foot, the 6th foot and the 7th foot of switching tube Qa are all connected with one end of the 8th foot and inductance L of switching tube Qa, The other end of inductance L connects the one of one end of second resistor Ra2, the CSB foot of charging chip U1 and third filter capacitor Ca3 End, the other end of second resistor Ra2 connect the BATT foot and the 4th of battery-end (corresponding cell voltage BAT), charging chip U1 One end of filter capacitor Ca4, the other end of third filter capacitor Ca3 and the other end of the 4th filter capacitor Ca4 are grounded.

The supply voltage AVDD(for the 19V that the charging chip U1 inputs adapter is inputted from the DC_IN in Fig. 3) conversion For charging current, the access between charging chip U1 and battery is connected by EXT feet-controlled pipe Qa to charge to battery. When charging chip U1 also test adaptor accesses, it is switched to adapter power supply, i.e., the supply voltage AVDD of 19V is converted into power supply Voltage MAX_OUT is exported from IOUT foot, and supply voltage MAX_OUT corresponds to charging current MAX_IOU, i.e. IOUT foot also exports charging Electric current MAX_IOU.If charging chip U1 detects its DCIN foot non-transformer voltage AVDD input, identification is accessed without adapter, from Dynamic to be switched to battery power supply, i.e. battery-end BAT is provided after voltage is converted to supply voltage MAX_OUT to charging chip U1 and is exported. The three resistors Ra3, the first filter capacitor Ca1 and the second filter capacitor Ca2 are filtered surely supply voltage MAX_OUT Pressure.What load end SYSTEM_LOAD indicated connection is entire controlled rear system (load), i.e., entire ultrasonic control system.

In the present embodiment, the state detection unit 120 includes first resistor R1, second resistance R2,3rd resistor R3, the Four resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, first capacitor C1, the second capacitor C2 and Third capacitor C3；One end of one end connection second resistance R2 of the first resistor R1 and the output end of charhing unit 110, first One end of the other end connection first capacitor C1 of resistance R1 and single chip machine controlling circuit 20, the other end of second resistance R2 and first The other end of capacitor C1 is grounded, the power input (input supply voltage of one end connection adapter of 3rd resistor R3 AVDD), the other end of 3rd resistor R3 connects one end of the 4th resistance R4 and one end of the 5th resistance R5, and the 5th resistance R5's is another One end of the second capacitor C2 of one end connection and single chip machine controlling circuit 20, the other end of the 4th resistance R4 and the second capacitor C2's is another One end is grounded, one end of the 6th resistance R6 connection battery (input cell voltage BAT), the other end connection of the 6th resistance R6 the One end of seven resistance R7 and one end of the 8th resistance R8, one end of the other end connection third capacitor C3 of the 8th resistance R8 and monolithic Machine control circuit 20, the other end of the 7th resistance R7 and the other end of third capacitor C3 are grounded.

In the present embodiment, first resistor R1, second resistance R2 and first capacitor C1 form charging state detection circuit；If filling Electrical chip U1 is charging, then the charging current MAX_IOU exported generates filling for corresponding level by charging state detection circuit Power detection signal CSD, it is low level or 0V that no charging current MAX_IOU, which then fills power detection signal CSD,；Single chip machine controlling circuit 20 It can determine whether charging according to the level value for filling power detection signal CSD.3rd resistor R3, the 4th resistance R4, the 5th electricity It hinders R5 and the second capacitor C2 and forms adaptor detection circuit.Adapter has supply voltage AVDD input when accessing, by adapter The adapter that corresponding level is exported after detection circuit partial pressure detects signal AD；If no adapter access, adapter detect signal AD is low level or 0V；Single chip machine controlling circuit 20 can judge whether there is adaptation according to the level value that adapter detects signal AD Device access.6th resistance R6, the 7th resistance R7, the 8th resistance R8 and third capacitor C3 form battery power detection circuit, according to The battery capacity that the current cell voltage BAT of battery generates corresponding level detects signal BT；Single chip machine controlling circuit 20 is according to electricity The level value of pond electric power detection signal BT identifies the current remaining capacity of battery.

Also referring to Fig. 5, Fig. 6 and Fig. 7, the single chip machine controlling circuit 20 includes single-chip microcontroller U2,210 and of indicating unit Communication unit 220；The single-chip microcontroller U2 exports corresponding condition indicative signal after sampling to working state signal and carrys out control instructions The light on and off of corresponding indicator light in unit 210；Single-chip microcontroller according to keypad input start switch signal output main switch signal come Control button plate conducting, to export main power source to B ultrasound mainboard and PC system；Single-chip microcontroller also passes through communication unit 220 and PC system Handshake communication is carried out, the push button signalling of working state signal, the probe signal of probe and keypad is carried out lattice by communication unit 220 Output to PC system is shown after formula conversion.

The family chip of model STC15W401AS can be used in the single-chip microcontroller U2, specific optional model The 1st foot (P1.2/ADC2/SS/ECI/CMPO), the 7th foot of STC15W401AS_SOP16_DIP16, the single-chip microcontroller U2 (P5.5/CMP+), the 16th foot (P1.0/ADC1/CCP0) is all connected with indicating unit 210；The 3rd foot (P1.4/ADC4/ of single-chip microcontroller U2 MISO the other end of first resistor R1) is connected, the 4th foot (P1.5/ADC5/SCLK) of single-chip microcontroller U2 connects the another of the 8th resistance R8 End, the 2nd foot (P1.3/ADC3/MOSI) of single-chip microcontroller U2 and the 5th foot (P5.4/RST/MCLKO/CMP-) are all connected with probe, single-chip microcontroller The 6th foot (Vcc) of U2 connects feeder ear (+3.3V), the 9th foot of single-chip microcontroller U2 (), 10 feet (P3.1/TXD/T2) and the 13rd foot () it is all connected with communication unit 220, single-chip microcontroller U2 The 11st foot (P3.2/INT0) and the 15th foot (P1.0/ADC0/CCP1) be all connected with keypad, the 12nd foot (P3.3/ of single-chip microcontroller U2 INT1) connect the 5th resistance R5 the other end, single-chip microcontroller U2 the 14th foot () Connect battery-end.The 2nd foot (P1.3/ADC3/MOSI) of single-chip microcontroller U2 is hanging (NC is reserved), and the 8th foot (Gnd) of single-chip microcontroller U2 connects Ground.Wherein, the 9th foot of single-chip microcontroller U2 and the 10th foot are serial communication feet, are used for and host communication；13rd foot is for detecting Whether USB plugs.

Described indicating unit 210(such as Fig. 6) refer to including the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, charging Show lamp LED1, full of indicator light LED2 and standby indicating lamp LED3；The anode connection of the charging indicator light LED1 is full of instruction The anode of lamp LED2, the anode of standby indicating lamp LED3 and feeder ear (+3.3V)；The cathode of charging indicator light LED1 passes through the 9th The 1st foot of resistance R9 connection single-chip microcontroller U2, the cathode full of indicator light LED2 pass through the tenth resistance R10 connection single-chip microcontroller U2 the 16 feet, the cathode of standby indicating lamp LED3 pass through the 7th foot of eleventh resistor R11 connection single-chip microcontroller U2.

Described communication unit 220(such as Fig. 7) include interface J1, communication chip U3(model CP2101), twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14, the 4th capacitor C4 and the 5th capacitor C5；The REGIN of the communication chip U3 Foot by the 5th capacitor C5 be grounded, the REGIN foot of communication chip U3 be also connected with the 1st foot of interface J1, communication chip U3 /RST Foot and VBUS foot；The VDD foot of communication chip U3 is grounded by the 4th capacitor C4, and the of the D+ foot connecting interface J1 of communication chip U3 3 feet, the 2nd foot of the D- foot connecting interface J1 of communication chip U3, the TXD foot of communication chip U3 are connected by thirteenth resistor R13 The 9th foot of single-chip microcontroller U2, the RXD foot of communication chip U3 pass through the 10th foot of the 14th resistance R14 connection single-chip microcontroller U2, interface J1 The 1st foot pass through the 13rd foot of twelfth resistor R12 connection single-chip microcontroller U2.

The present embodiment is improved to circuit is started switch on keypad to be adapted to single chip machine controlling circuit 20, is please joined together Read Fig. 8, starting switch circuit includes start key K1, metal-oxide-semiconductor Q1(PMOS), triode Q2(NPN), the 15th resistance R15, the tenth Six resistance R16 and the 17th resistance R17；The 1st foot and the 3rd foot of the start key K1 is；The 2nd foot connection of start key K1 is opened The 4th foot, one end of the 15th resistance R15 and the 11st foot of single-chip microcontroller U2 of dynamic key K1；The other end of 15th resistance R15 connects One end of the output end of charhing unit 110, the source electrode of metal-oxide-semiconductor Q1 and the 16th resistance R16, the grid connection the tenth of metal-oxide-semiconductor Q1 The other end of six resistance R16 and the collector of triode Q2, drain electrode connection main power source end (the output main power source MP_ of metal-oxide-semiconductor Q1 OUT), the base stage of triode Q2 passes through the 15th foot of the 17th resistance R17 connection single-chip microcontroller U2.

In the present embodiment, single-chip microcontroller U2 believes power detection signal CSD, adapter detection signal AD and battery capacity detection is filled Number BT carry out exporting after AD sampling respectively corresponding condition indicative signal (including charging instruction signal CI, full of indication signal FOE With standby indication signal STANDBY).Specifically: filling power detection signal CSD has level value, then exports the charging instruction of high level Signal CI；Adapter detection signal AD or battery capacity detection signal BT have level value, then export the standby instruction letter of high level Number STANDBY, the level value of battery capacity detection signal BT reach upper limit value then export high level full of indication signal FOE； It is on the contrary then export low level or 0V.It charging instruction signal CI, is height electricity full of indication signal FOE, standby indication signal STANDBY Usually, corresponding charging indicator light LED1, light full of indicator light LED2, standby indicating lamp LED3；Otherwise extinguish.Such basis The light on and off of indicator light can facilitate user to judge the current working condition of B ultrasound monolithic processor control device.

Keypad detection start key K1 is exported when being pressed (2,3 feet connection drag down) low level starts switch signal SOFT_START_S unclamps then start key K1 and bounces recovery high level, this sentences low level and carries out triggering starting.The single-chip microcontroller Control circuit is controlled according to the low level main switch signal MAIN_S for starting switch signal SOFT_START_S output high level Triode Q2 conducting, so that the grid of metal-oxide-semiconductor Q1 be dragged down, metal-oxide-semiconductor Q1 conducting, supply voltage MAX_OUT becomes by metal-oxide-semiconductor Q1 It is changed to main power source MP_OUT to export to B ultrasound mainboard 30 and PC system 40, to be powered.

The signal of single-chip microcontroller output could export after needing to turn by USB serial ports to PC system.Single-chip microcontroller institute is in need defeated Data-signal out is transmitted to communication chip U3 by signal wire TXD_MCU and formats, through signal wire USB_DP_IN, USB_DM_IN is exported from interface J1 to PC system 40.The data-signal of all outputs of PC system 40 is inputted by interface J1, through believing Number line USB_DP_IN, USB_DM_IN are transmitted to communication chip U3 and format, then are transmitted to list through signal wire RXD_MCU Piece machine.

In the present embodiment, single-chip microcontroller first carries out port initialization after powering on, i.e., initializes to each peripheral interface, including docking The serial communication initialization of mouth J1, the initialization of the port AD (each pin being connected with state detection unit 120).Initialization Opens interrupters after complete, subsequently into main program.

PC system 40, which enters after supersonic boundary surface, carries out handshake communication with single-chip microcontroller.USB detection of power loss is carried out in the course of work (realizing the synchronous power-off of USB power down whole system), working condition detection, is visited switching on and shutting down key detection (realizing power on/off function) Head identification and key switching.

When single-chip microcontroller carries out working condition detection, AD sampling is carried out to working state signal and various states are passed through into instruction Lamp indicates, information about power is also transmitted to PC system by serial ports.Single-chip microcontroller carries out probe identification (identification of probe model) It afterwards will be on type identification signal one_wrie, working state signal and the keypad on the identification signal probe of probe and probe Output to PC system 40 is shown after the push button signalling that each key is pressed is converted by communication chip U3 format.

In conclusion the B ultrasound monolithic processor control device of miniaturization provided by the utility model and existing producer's design scheme Difference mostly is designed using routinizing, existing partial circuit is eliminated, eliminates multiple circuit elements, the novel circuit knot of design Structure is simpler and multiple functional, and PCB circuit design is simple, small in size, is suitble to widely popularize.

The division of above-mentioned functional module is only to for example, in practical applications, can according to need above-mentioned function Distribution is completed by different functional modules, that is, different functional modules is divided into, to complete all or part of foregoing description Function.

It is understood that for those of ordinary skills, can with technical solution according to the present utility model and The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to appended by the utility model Scope of protection of the claims.

Claims (9)

1. a kind of B ultrasound single-chip computer control system of miniaturization, including adapter, battery and probe, which is characterized in that further include by Keypad and B ultrasound monolithic processor control device；The adapter, battery, probe, keypad are all connected with B ultrasound monolithic processor control device；

The B ultrasound monolithic processor control device charges to battery according to the supply voltage that adapter inputs, according to the access of adapter State selects adapter power supply or battery power supply to be worked as according to the light on and off of indicator light built in current working state control with display Preceding working condition；

B ultrasound monolithic processor control device starts switch signal control button plate output main power source according to what keypad inputted；By work The push button signalling of status signal, the probe signal of probe and keypad exports display.

2. the B ultrasound single-chip computer control system of miniaturization according to claim 1, which is characterized in that the B ultrasound single-chip microcontroller control Device processed includes: charging circuit, single chip machine controlling circuit, B ultrasound mainboard and PC system；The charging circuit connection single-chip microcontroller control Circuit, adapter, battery and keypad, single chip machine controlling circuit connect keypad, PC system and probe, and the B ultrasound mainboard connects Connect PC system and keypad；

The charging circuit by supply voltage be converted to charging current for battery charging, charging circuit according to power input status from It is dynamic to carry out adapter power supply and battery powered switching, working state signal is also fed back into single chip machine controlling circuit；

Single chip machine controlling circuit controls the light on and off of built-in indicator light after sampling to working state signal, to show current work Make state；Main power source is switched to B ultrasound according to the signal control button plate that starts switch that keypad inputs by single chip machine controlling circuit Mainboard and PC system；Single chip machine controlling circuit by the push button signalling of working state signal, the probe signal of probe and keypad into Output to PC system is shown after row format conversion.

3. the B ultrasound single-chip computer control system of miniaturization according to claim 2, which is characterized in that the charging circuit packet Include charhing unit and state detection unit: the charhing unit connection state detection unit, adapter, battery and keypad；

Supply voltage is converted to charging current as battery charging by the charhing unit, and in test adaptor access, switching For adapter power supply；Battery power supply is switched to when detection is without adapter access；

The corresponding level of charging current generation that the state detection unit is exported according to charging chip fills power detection signal, according to The adapter detection signal for connecing disconnected state and generating corresponding level of adapter, the also current electricity of acquisition battery simultaneously generate corresponding electricity Flat battery capacity detects signal.

4. the B ultrasound single-chip computer control system of miniaturization according to claim 3, which is characterized in that the state-detection list Member includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th electricity Resistance, first capacitor, the second capacitor and third capacitor；

One end of one end connection second resistance of the first resistor and the output end of charhing unit, the other end of first resistor connect One end and the single chip machine controlling circuit of first capacitor are connect, the other end of second resistance and the other end of first capacitor are grounded, the The power input of one end connection adapter of three resistance, the other end of 3rd resistor connect one end and the 5th electricity of the 4th resistance The other end of one end of resistance, the 5th resistance connects one end and the single chip machine controlling circuit of the second capacitor, the other end of the 4th resistance It is grounded with the other end of the second capacitor, one end of the 6th resistance connects battery, and the other end of the 6th resistance connects the 7th resistance One end and the 8th resistance one end, one end of the other end connection third capacitor of the 8th resistance and single chip machine controlling circuit, the The other end of seven resistance and the other end of third capacitor are grounded.

5. the B ultrasound single-chip computer control system of miniaturization according to claim 4, which is characterized in that the single-chip microcontroller control Circuit includes single-chip microcontroller, indicating unit and communication unit；

The single-chip microcontroller exports corresponding condition indicative signal after sampling to working state signal comes in control instructions unit accordingly The light on and off of indicator light；

Single-chip microcontroller starts switch signal output main switch signal come the conducting of control button plate, to export master according to what keypad inputted Power supply is to B ultrasound mainboard and PC system；

Single-chip microcontroller also passes through communication unit and the push button signalling of working state signal, the probe signal of probe and keypad is carried out lattice Output to PC system is shown after formula conversion.

6. the B ultrasound single-chip computer control system of miniaturization according to claim 5, which is characterized in that the type of the single-chip microcontroller It number is STC15W401AS, the 1st foot, the 7th foot, the 16th foot of the single-chip microcontroller be all connected with indicating unit；3rd foot of single-chip microcontroller connects The other end of first resistor is connect, the 4th foot of single-chip microcontroller connects the other end of the 8th resistance, and the 2nd foot of single-chip microcontroller and the 5th foot connect Probe is connect, the 6th foot of single-chip microcontroller connects feeder ear, and the 9th foot, the 10th foot and the 13rd foot of single-chip microcontroller are all connected with communication unit, single 11st foot of piece machine and the 15th foot are all connected with keypad, and the 12nd foot of single-chip microcontroller connects the other end of the 5th resistance, single-chip microcontroller 14th foot connects battery-end.

7. the B ultrasound single-chip computer control system of miniaturization according to claim 6, which is characterized in that the indicating unit packet It includes the 9th resistance, the tenth resistance, eleventh resistor, charging indicator light, be full of indicator light and standby indicating lamp；

The anode connection of the charging indicator light is full of the anode and feeder ear of the anode of indicator light, standby indicating lamp；Charging refers to Show that the cathode of lamp connects the 1st foot of single-chip microcontroller by the 9th resistance, the cathode full of indicator light connects monolithic by the tenth resistance 16th foot of machine, the cathode of standby indicating lamp connect the 7th foot of single-chip microcontroller by eleventh resistor.

8. the B ultrasound single-chip computer control system of miniaturization according to claim 7, which is characterized in that the communication unit packet Include interface, communication chip, twelfth resistor, thirteenth resistor, the 14th resistance, the 4th capacitor and the 5th capacitor；

The REGIN foot of the communication chip by the 5th capacity earth, the REGIN foot of communication chip be also connected with the 1st foot of interface, Communication chip /RST foot and VBUS foot；The VDD foot of communication chip is connect by the 4th capacity earth, the D+ foot of communication chip 3rd foot of mouth, the 2nd foot of the D- foot connecting interface of communication chip, the TXD foot of communication chip connect monolithic by thirteenth resistor 9th foot of machine, the RXD foot of communication chip connect the 10th foot of single-chip microcontroller by the 14th resistance, and the 1st foot of interface passes through the tenth 13rd foot of two resistance connection single-chip microcontroller.

9. B ultrasound single-chip computer control system according to claim 8, which is characterized in that the keypad starts switch electricity Road includes start key, metal-oxide-semiconductor, triode, the 15th resistance, the 16th resistance and the 17th resistance；

1st foot of the start key and the 3rd foot are；The 2nd foot connection the 4th foot of start key of start key, the 15th resistance 11st foot of one end and single-chip microcontroller；The other end of 15th resistance connects the source electrode and the tenth of the output end of charhing unit, metal-oxide-semiconductor One end of six resistance, the grid of metal-oxide-semiconductor connect the other end of the 16th resistance and the collector of triode, and the drain electrode of metal-oxide-semiconductor connects Main power source end is connect, the base stage of triode connects the 15th foot of single-chip microcontroller by the 17th resistance.