CN111864849A - Base charging control circuit of brain disease quantitative evaluation system - Google Patents
Base charging control circuit of brain disease quantitative evaluation system Download PDFInfo
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- CN111864849A CN111864849A CN202010748950.8A CN202010748950A CN111864849A CN 111864849 A CN111864849 A CN 111864849A CN 202010748950 A CN202010748950 A CN 202010748950A CN 111864849 A CN111864849 A CN 111864849A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4058—Detecting, measuring or recording for evaluating the nervous system for evaluating the central nervous system
- A61B5/4064—Evaluating the brain
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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Abstract
The invention discloses a base charging control circuit of a brain disease quantitative evaluation system, which comprises a power supply management module, a charging control module and a power supply control module, wherein the power supply management module is used for performing voltage conversion and providing a plurality of power supply signals; the USB interface module is used for externally connecting USB equipment and transmitting data to the microcontroller module; the node module is used for providing charging voltage and synchronous signals for the motion node and the electrophysiological node; the fan heat dissipation module is used for providing an active heat dissipation function for a circuit in work; and the microcontroller module is used for receiving the data transmitted by each module, processing the data and then sending corresponding instructions to each module. The invention can provide longer endurance time for the moving node, can be charged at any time when being released, and can monitor the node charging process at any time in the charging process. The one-key charging function and the one-key data synchronization function of the device greatly reduce the learning cost of the device, and medical staff can see data in real time conveniently to ensure data accuracy.
Description
Technical Field
The invention relates to the technical field of base charging control circuits, in particular to a base charging control circuit of a data transmission system, which can be connected with an upper computer through WiFi and receives a control instruction sent by the upper computer, and a base charging control circuit of the data transmission system, which can be connected with an electromyographic node and a motion node through WiFi and can monitor the nodes in real time.
Background
With the coming of aging and the improvement of the average life span of people, some senile diseases are gradually increased, and attract our attention. Especially, patients with dyskinesia such as limb disability, Parkinson's disease, gradually-frozen disease and the like after wind recover slowly, and the treatment effect of the patients is usually subjective opinion of the patients and is not objective and timely enough. At present, a charging device matched with a biological signal monitoring system is not available, and the charging device in the prior art has the defects of large volume, inconvenience in charging, portability and the like. Besides, do not support portable charging and magnetism to inhale the formula and charge mostly, consequently prior art exists and uses the scene singleness, needs plug charging plug, and the step of charging is loaded down with trivial details and other defects.
Disclosure of Invention
The invention aims to provide a base charging control circuit of a brain disease quantitative evaluation system, which aims to solve the technical problems in the prior art, can provide long endurance time for a moving node, can be charged at any time when being released, and can monitor the node charging process at any time in the charging process. The one-key charging function and the one-key data synchronization function of the device greatly reduce the learning cost of the device, and medical staff can see data in real time conveniently to ensure data accuracy.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a base charging control circuit of a brain disease quantitative evaluation system, which comprises: the power supply management module is used for performing voltage conversion and providing a plurality of power supply signals;
the USB interface module is used for externally connecting USB equipment and transmitting data to the microcontroller module;
the node module is used for providing charging voltage and synchronous signals for the motion node and the electrophysiological node;
the fan heat dissipation module is used for providing an active heat dissipation function for a circuit in work;
and the microcontroller module is used for receiving the data transmitted by each module, processing the data and then sending corresponding instructions to each module.
Preferably, the power management module comprises a lithium battery charging module, a system power supply voltage reduction module, a node total power supply voltage reduction module, a single-node controllable power supply module and a microcontroller power supply module.
Preferably, the lithium battery charging module comprises a MAX745 charging chip, a battery power sampling module, a PTC self-recovery fuse, a power input terminal and a power output terminal; the battery electric quantity sampling module samples voltage by using an ADC (analog to digital converter); the maximum current of the PTC self-recovery fuse is 3.5V, the rated voltage is 16V, the charging current of the lithium battery is 2A, and the charging voltage is not more than 15V.
Preferably, the system power supply voltage reduction module comprises a voltage reduction chip ADP2302ZRDZ, a switch circuit, a power supply input end and a power supply output end; the switching circuit is coupled to the microcontroller module and used for controlling the voltage reduction module to be turned on or turned off.
Preferably, the node total power supply voltage reduction module comprises a voltage reduction chip APW7090 and a node total power supply automatic control module; the node main power supply automatic control module is coupled to the microcontroller module and used for controlling the on-off of node main charging.
Preferably, the single-node controllable power supply module comprises a charging chip TPS2051C, a power supply input terminal, a charging signal input terminal, and a signal output terminal; the power supply input end is coupled to the output end of the node total power supply voltage reduction module, the charging signal input end is coupled to the microcontroller chip and used for controlling the on-off of the charging state of a single node, the signal output end is coupled to the microcontroller chip, and when the charging current exceeds a current threshold value, a signal for stopping charging is output.
Preferably, the microcontroller module comprises an STM32H742 microcontroller chip, a peripheral circuit, a WIFI reset module and a crystal oscillator.
Preferably, the USB module includes a USB to serial port module and a USB interface module; the USB interface module comprises an RS232 interface module and a MicroUSB interface module.
Preferably, the USB serial-to-serial port module includes an FT232RL chip, a power input terminal, a power output terminal, and a signal input terminal; the power supply input end is coupled to the output end of the microcontroller power supply module;
the RS232 interface module is coupled to the microprocessor and used for outputting a synchronous signal;
the MicroUSB interface module comprises a power supply input end, a signal output end and an anti-static diode; the power input end is coupled to the power output end of the USB-to-serial port module, and the signal output end is coupled to the signal input end of the USB-to-serial port module.
Preferably, the fan cooling module is coupled to the micro control chip, the fan cooling module includes a cooling system, and the start and stop of the cooling system are automatically controlled by the micro control chip.
The invention discloses the following technical effects: the invention is used in cooperation with a biological signal monitoring system, and when the system is used, the bioelectricity data of a human body is acquired by the myoelectricity and movement nodes through the sensor and is processed by the microprocessor. By placing the nodes into the corresponding recesses of the base and maintaining the powered-on state of the base, the base can provide a stable charging function for the corresponding node device. Utilize the charge structure of the formula of inhaling on the biological signal monitoring system of magnetism, when the node was placed on the base, the magnet of node bottom and the magnet on the base adsorb each other, and the metal contact of node bottom can contact the metal post that charges on the base simultaneously. As long as the base is in the power-on state, the metal charging column on the base for charging the node is always in the charged state. Thus, once the node is placed in the base, the base will begin charging the node if the base is again on. Namely, the invention can provide longer endurance time for the moving node and can be charged at any time. In addition, the use scene of the equipment is greatly expanded by adopting a mobile charging function, and medical personnel can conveniently charge the nodes at any time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic circuit diagram of a base charging control circuit board according to the present invention;
FIG. 2 is a schematic diagram of a power management module according to the present invention;
FIG. 3 is a schematic circuit diagram of a microcontroller module according to the present invention;
FIG. 4 is a circuit schematic of a node module of the present invention;
FIG. 5 is a circuit diagram of a heat dissipation module of a fan according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, the present embodiment provides a base charging control circuit of a brain disease quantitative evaluation system, a power management module, a microcontroller module, a node module, a USB interface module, and a fan heat dissipation module,
the power management module is used for performing voltage conversion and providing the converted voltage as a power signal to the microcontroller module, the node module, the USB interface module and the fan heat dissipation module respectively;
the power management module comprises a lithium battery charging module, a system power supply voltage reduction module, a node total power supply voltage reduction module, eight single-node controllable power supply modules and a microcontroller power supply module.
The lithium battery charging module comprises an MAX745 charging chip, a battery electric quantity sampling module, a PTC self-recovery fuse, a power supply input end and a power supply output end; the battery electric quantity sampling module samples voltage by using an ADC (analog to digital converter); the maximum current of the PTC self-recovery fuse is 3.5V, the rated voltage is 16V, the charging current of the lithium battery is 2A, and the charging voltage is not more than 15V.
The power input end of the lithium battery charging module is used for inputting a first voltage, and the power output end of the lithium battery charging module is used for outputting a second voltage. The first voltage is 12V, and the second voltage is 7.4V.
The system power supply voltage reduction module comprises a voltage reduction chip ADP2302ZRDZ, a switching circuit, a power supply input end and a power supply output end; the switching circuit is coupled to the microcontroller module and used for controlling the voltage reduction module to be turned on or turned off.
The power supply input end of the system power supply voltage reduction module is used for inputting a first voltage and a second voltage, and the power supply output end of the system power supply voltage reduction module is used for outputting a third voltage. The third voltage is 3.7V.
The node total power supply voltage reduction module comprises a voltage reduction chip APW7090 and a node total power supply automatic control module; the node main power supply automatic control module is coupled to the microcontroller module and used for controlling the on-off of node main charging.
The power input end of the node total power supply voltage reduction module is used for inputting a first voltage and a second voltage, and the power output end of the node total power supply voltage reduction module is used for outputting a fourth voltage. The fourth voltage is 5V.
The single-node controllable power supply module comprises a charging chip TPS2051C, a power supply input end, a charging signal input end and a signal output end; the power supply input end is coupled to the output end of the node total power supply voltage reduction module, the charging signal input end is coupled to the microcontroller chip and used for controlling the on-off of the charging state of a single node, the signal output end is coupled to the microcontroller chip, and when the charging current exceeds a current threshold value, a signal for stopping charging is output.
The microcontroller power supply module comprises a low-dropout positive voltage regulator AZ1086H-3.3 and a peripheral circuit. The power supply input end of the microcontroller power supply module is used for inputting a third voltage, and the power supply output end of the microcontroller power supply module is used for outputting a fifth voltage. The fifth voltage is 3.3V.
The USB interface module can be used for externally connecting USB equipment and transmitting data to the microcontroller module; the USB module comprises a USB-to-serial port module and a USB interface module; the USB interface module comprises an RS232 interface module and a MicroUSB interface module.
The USB-to-serial port module comprises an FT232RL chip, a power input end, a power output end and a signal input end; the power supply input end is coupled to the output end of the microcontroller power supply module; the output end of the power supply outputs 1.8-5.25V voltage.
The RS232 interface module is coupled to the microprocessor and used for outputting a synchronous signal;
the MicroUSB interface module comprises a power supply input end, a signal output end and an anti-static diode; the power input end is coupled to the power output end of the USB-to-serial port module, and the signal output end is coupled to the signal input end of the USB-to-serial port module.
The node module is used for providing charging voltage and synchronous signals for the motion node and the electrophysiological node;
the fan heat dissipation module is used for providing an active heat dissipation function for a circuit in work;
the microcontroller module is used for receiving the data transmitted by each module, processing the data and then sending corresponding instructions to each module. The microcontroller module comprises an STM32H742 microcontroller chip, a peripheral circuit, a WIFI reset module and a crystal oscillator with the frequency of 32.768 KHZ. The maximum frequency of the microcontroller chip is 480MHz, and the WIFI resetting module has the function of resetting the system for more than ten seconds by pressing the resetting key for a long time.
As shown in the circuit diagram of the microcontroller module in FIG. 2, the microcontroller module includes a microcontroller chip STM32H742, light emitting diodes LED1-4, LEDG5, LEDR5, CHARGE _ EN1-8, resistors R11, R13, R14, R17, capacitors C32-C43, an inductor L2, a crystal oscillator Y3, power supply input terminals VDD3V3 and Vbat. Wherein the maximum frequency of the microcontroller chip is 480 MHz. The eighth port PC14_ IN is coupled to the ninth port PC14_ OUT via a crystal oscillator, which has a frequency of 32.768KHZ and provides a clock frequency for the MCU chip. The eleventh port is coupled to the LEDG5, the twelfth port is coupled to the LEDR5, the thirteenth port is coupled to the LED4, the fourteenth port is coupled to the LED3, the fifteenth port is coupled to the LED2, the seventeenth port is coupled to the VDD3V3, and the eighteenth port is coupled to the LED 1. The thirtieth port is coupled to the power input terminal VDD3V3, the thirtieth port is coupled to the power input terminal VDD3V3 through the inductor L2, the thirtieth port is further coupled to the thirtieth port through the inductor L2, and the thirtieth port is coupled to the node module through the UART2_ TX, which functions to provide a charging signal to the node. Eighty-sixth, sixty-eighth, eighty-twelfth, eighty-seventh, seventy-eighth, forty-ninth, fifty-sixth, forty-sixth ports are respectively coupled to the light emitting diodes CHARGE _ EN1-8, and the function thereof is that when the node is in a charging state, the corresponding light emitting diode CHARGE _ EN1-8 is lighted as a charging indicator.
As shown in the circuit diagram of the node module shown in fig. 3, the node modules No. two to No. eight have the same circuit structure as the node module No. one. As shown in fig. 3, node one module includes three ESD diodes, one contact board. The first port of the first node is grounded, the second port is coupled to the ninety-sixth port of the microcontroller module, the third port is coupled to the ninety-seventh port of the microcontroller module, and the second port and the third port of the first node are used for receiving commands sent by the microcontroller and transmitting data of the node to the microcontroller. The third port is coupled to the power input terminal VDDCHARGE1 for outputting a charging signal to the node. The second port, the third port and the fourth port are also grounded through electrostatic diodes ESD19, ESD18 and ESD3 respectively.
As shown in the circuit diagram of the USB interface module shown in fig. 4, the USB interface module includes a USB interface module 1 and a USB interface module 2, wherein the USB interface module 1 includes resistors R19 and R21, electrostatic diodes EDS2, EDS3, EDS4, and a diode SS 12. The first port of the USB interface module 1 is coupled to the external power signal USBVCC through a diode SS12, and is also grounded through an ESD 4. The second port of the USB interface module 1 is coupled to the port 16 of the USB to serial port module through R21, the third port of the USB interface module 1 is coupled to the port 15 of the USB to serial port module through R19, and the port 4 of the USB interface module 1 is grounded. The USB interface module 2 includes resistors R23 and R24, ESD5 and ESD6, and the port 2 of the USB interface module 2 is coupled to the port 105 of the microprocessor module through R23 and is grounded through ESD 5. Port 3 of the USB interface module 2 is coupled to port 109 of the microprocessor module through R24 while being grounded through ESD 6. The port 5 of the USB interface module 2 is grounded.
As shown in the circuit diagram of the fan heat dissipation module shown in fig. 5, the fan module includes resistors R7 and R13, a transistor Q1, and a fan module JP 1. The port 10 of the fan module is coupled to the base of the transistor Q1 through a resistor R7, and is grounded through a resistor R13, the collector of Q1 is electrically connected to the port 1 of the fan module, and the emitter of Q1 is grounded.
In a further optimized scheme, the invention is used in cooperation with a biological signal monitoring system, and when the system is used, myoelectricity, electroencephalogram, electrocardio and motion nodes collect human body biological signals through sensors and process the human body biological signals through a microprocessor. By placing the nodes into the corresponding recesses of the base and maintaining the powered-on state of the base, the base can provide a stable charging function for the corresponding node device. Utilize the charge structure of the formula of inhaling on the biological signal monitoring system of magnetism, when the node was placed on the base, the magnet of node bottom and the magnet on the base adsorb each other, and the metal contact of node bottom can contact the metal post that charges on the base simultaneously. As long as the base is in the power-on state, the metal charging column on the base for charging the node is always in the charged state. Thus, once the node is placed in the base, the base will begin charging the node if the base is again on. The node can be charged conveniently without plugging and unplugging a charging plug for the node.
According to the further optimized scheme, the large-capacity battery arranged in the base and the power management module of the base realize the mobile charging function. Specifically, when the base is not connected to a power supply, if the node is placed in the base, the lithium battery in the base continues to charge the node.
According to a further optimized scheme, the base is further provided with an electric quantity display device and a battery management module. The electric quantity display device is provided with 4 LED lamps and is used for displaying the electric quantity; the battery management module uses an STM32H742 chip, and the chip can collect the electric quantity of the battery and then convert the electric quantity information into a control signal of the LED lamp. If all four lamps are on, the electric quantity is nearly full; three lamps, the electric quantity is about 75%; only two lamps are needed, and the electric quantity is about 50 percent; one lamp, the electric quantity is about 25%; without the lamp quantity, the electric quantity is 0. And similarly, the LED power indicator lamp is used for judging the charging process of the base.
Further optimize the scheme, be provided with the display lamp on the node, realized that the node charging process is visual. When the electric quantity of the node is too low, the indicator light turns red; when the node is sufficiently charged, the indicator light turns blue. Therefore, the charge indicator light turns blue, which means that the node charging is completed. The node power management is realized by a built-in MAX745 chip, so as to regulate and control the magnitude of the charging current.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A base charging control circuit of a brain disease quantitative evaluation system, comprising: the power supply management module is used for performing voltage conversion and providing a plurality of power supply signals;
the USB interface module is used for externally connecting USB equipment and transmitting data to the microcontroller module;
the node module is used for providing charging voltage and synchronous signals for the motion node and the electrophysiological node;
the fan heat dissipation module is used for providing an active heat dissipation function for a circuit in work;
and the microcontroller module is used for receiving the data transmitted by each module, processing the data and then sending corresponding instructions to each module.
2. The base charging control circuit of the brain disease quantitative evaluation system of claim 1, wherein the power management module comprises a lithium battery charging module, a system power voltage reduction module, a node total power supply voltage reduction module, a single-node controllable power supply module, and a microcontroller power supply module.
3. The base charging control circuit of the brain disease quantitative evaluation system according to claim 2, wherein the lithium battery charging module comprises a MAX745 charging chip, a battery charge sampling module, a PTC self-healing fuse, a power input terminal and a power output terminal; the battery electric quantity sampling module samples voltage by using an ADC (analog to digital converter); the maximum current of the PTC self-recovery fuse is 3.5V, the rated voltage is 16V, the charging current of the lithium battery is 2A, and the charging voltage is not more than 15V.
4. The base charging control circuit of the brain disease quantitative evaluation system according to claim 2, wherein the system power voltage reduction module comprises a voltage reduction chip ADP2302ZRDZ, a switching circuit, a power input terminal and a power output terminal; the switching circuit is coupled to the microcontroller module and used for controlling the voltage reduction module to be turned on or turned off.
5. The base charging control circuit of the brain disease quantitative evaluation system according to claim 2, wherein the node total power supply voltage reduction module comprises a voltage reduction chip APW7090 and a node total power supply automatic control module; the node main power supply automatic control module is coupled to the microcontroller module and used for controlling the on-off of node main charging.
6. The base charging control circuit of the brain disease quantitative evaluation system according to claim 2, wherein the single-node controllable power supply module comprises a charging chip TPS2051C, a power input terminal, a charging signal input terminal, a signal output terminal; the power supply input end is coupled to the output end of the node total power supply voltage reduction module, the charging signal input end is coupled to the microcontroller chip and used for controlling the on-off of the charging state of a single node, the signal output end is coupled to the microcontroller chip, and when the charging current exceeds a current threshold value, a signal for stopping charging is output.
7. The base charging control circuit of brain disease quantitative evaluation system of claim 1, characterized in that, the microcontroller module includes STM32H742 microcontroller chip and peripheral circuit, WIFI reset module, crystal oscillator.
8. The base charging control circuit of the brain disease quantitative evaluation system according to claim 1, wherein the USB module comprises a USB to serial port module and a USB interface module; the USB interface module comprises an RS232 interface module and a MicroUSB interface module.
9. The base charging control circuit of the brain disease quantitative evaluation system according to claim 8, wherein the USB to serial port module comprises an FT232RL chip, a power input terminal, a power output terminal, a signal input terminal; the power supply input end is coupled to the output end of the microcontroller power supply module;
the RS232 interface module is coupled to the microprocessor and used for outputting a synchronous signal;
the MicroUSB interface module comprises a power supply input end, a signal output end and an anti-static diode; the power input end is coupled to the power output end of the USB-to-serial port module, and the signal output end is coupled to the signal input end of the USB-to-serial port module.
10. The base charging control circuit of the brain disease quantitative evaluation system of claim 1, wherein the thermal fan module is coupled to the micro control chip, the thermal fan module comprises a thermal dissipation system, and the start and stop of the thermal dissipation system is automatically controlled by the micro control chip.
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