CN104721922A - Infusion monitoring control system - Google Patents
Infusion monitoring control system Download PDFInfo
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- CN104721922A CN104721922A CN201510097752.9A CN201510097752A CN104721922A CN 104721922 A CN104721922 A CN 104721922A CN 201510097752 A CN201510097752 A CN 201510097752A CN 104721922 A CN104721922 A CN 104721922A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16886—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body for measuring fluid flow rate, i.e. flowmeters
- A61M5/1689—Drip counters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3546—Range
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
Landscapes
- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion monitoring control system. The infusion monitoring control system comprises an infusion rate control module, a temperature control module, an alarming module, a man-machine interaction module and a communication module, which are connected with a microcontroller respectively. According to the infusion monitoring control system, infusion control is performed through the steps that the microcontroller is used for receiving and processing infusion information and making a comparison with control parameters preset by the man-machine interaction module, processed infusion information is returned to each module. The infusion monitoring control system has the functions of calling, maintaining infusion liquid in a constant temperature and alarming and reminding, network control can be performed on line, and the popularization and application value is achieved.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of monitoring infusion control system.
Background technology
According to State Food and Drug Administration in 2004 on June 10, " notice about the product classifications such as gingivitis irrigator define " (state's food medicine prison No. [2004] 321, tool), " infusion monitor: for infusion monitoring state; when medicinal liquid stops dripping dynamic or sending prompting when reaching setting value, as I class medical instrument management " to the definition of infusion monitor.Infusion monitor also can be popular be called infusion alarm.Infusion monitor can realize the intelligent management to transfusion, alleviate the working strength of medical personnel, solve the nurse burden of patient patient and family members in infusion process, be to the change on infusion management and Clinical Nursing Model, effectively can promote the information system management level of hospital.
It is photovoltaic principals that the technology that infusion controller adopts mainly contains 3 kinds: one, and two is weighing principles; Three is capacitance principles.For the infusion controller adopting photovoltaic principals, early stage way is clamped on the dropping funnel of transfusion device by infusion controller, or be clamped in the oral area of infusion bottle, and these methods have the advantages that impact is observed, detected relative poor.Present technology has realized being clamped on tube for transfusion, and becoming more meticulous of detection is largely increased.Such as, the infusion controller of Ke Chengruier Science and Technology Ltd. of Beijing research and development, the advanced person that possesses skills, reminds reliable, easy and simple to handle, compact volume and convenience, the feature such as economical and practical.For another example the infusion controller of Shenzhen Lai Bang Science and Technology Ltd. research and development, adopts mains-supplied, and can automatic liquid-stopping.For weighing principle (or button restitution reason) infusion controller, have structure simple, detect extensive feature, also need the empty infusion bottle for Different Weight to carry out the deficiency adjusted.For capacitance principle infusion controller, there is the deficiency that capacity of resisting disturbance is weak, apply less.Existing infusion controller major defect is as follows on the market at present: do not have call function; Be simple sound, light warning during warning; Do not possess the constant and automatic hold function of temperature of liquid; Do not possess networking and network control function.
Summary of the invention
The present invention is directed to the technological deficiency that prior art exists, object is to solve existing hospital when patient infusion, improper owing to looking after, there is air and enter the situation that blood produces air embolism, a kind of monitoring infusion control system is provided, this system can also be conversed and networking by wired and wireless carrying out, and is dripped the function of speed by network control and tracer liquid, and has maintenance transfusion liquid temperature incubation function.
The present invention realizes especially by following technical scheme:
A kind of monitoring infusion control system, comprise droplet fast control module, temperature control modules, alarm module, human-computer interaction module and the communication module that are connected with microcontroller respectively, this monitoring infusion control system is used for accepting and process infusion information by microcontroller, and compare with the controling parameters that human-computer interaction module presets, the infusion information after process is returned each module and carry out transfusion control.
Described fast control module of dripping comprises droplet fast collecting unit, step motor control unit and a mechanical driving device, dripping fast collecting unit adopts Infrared Detection Method to gather drop signal, by infrared sensor and modulate circuit thereof, drop signal is sent into counting process in microcontroller, and in human-computer interaction module display screen, show present infusion drip speed.This transfusion drip speed and the transfusion drip speed value preset are compared, step motor control module accepts command signal driving device actuating device and steps up or unclamp tube for transfusion, controls transfusion drip speed.
Described temperature collect module comprises temperature collecting cell and heater, and described temperature collecting cell gathers the fluid temperature of present infusion passage by temperature sensor, is sent in microprocessor by temperature information.Compared with the temperature preset by this transfusion temperature by microcontroller, heater accepts command signal thus controls the break-make of heater.
Described alarm module comprises liquid level collecting unit and alarm unit, described liquid level collecting unit is for gathering the medicinal liquid positional information in Murphy type tube, Information Monitoring is transferred to microcontroller process, alarm unit accepts command signal, present infusion passage is closed lower than during alert locations, alarm unit gives the alarm, and reminds medical personnel to come to process.
Described human-computer interaction module comprises key input unit and screen display unit, described key input unit and for arranging all infusion parameter in infusion process, the transfusion speed reached needed for comprising and transfusion temperature, confirm and revise the various functional parameters of transfusion monitoring instrument, screen display unit is used for showing infusion information in real time.
Described communication module is used for infusion information to be sent in the computer of nurse station by wire/radio network, this place infusion information is informed nurse on duty, has wire/wireless calling set function simultaneously.
The present invention also comprises power module, for providing running voltage for whole system circuit.
Described power module provides voltage to be 5V unidirectional current.
The while that described alarm unit alternately glimmering by controlling red LED lamp, buzzer gives the alarm.
Beneficial effect of the present invention is: 1) infusion monitor and calling set are united two into one, and can adopt civil power (220V) and lithium battery power supply, realizes wired and wireless communication function; 2) inner employing speech chip, not only has light flash during warning, also can carry out corresponding voice message according to alarm condition; 3) constant temperature and the automatic hold function of liquid medicine is possessed; 4) multiple stage can network, the supervisory control comuter of nurse station can be monitored the function of liquid droping speed and change liquid droping speed in each infusion bottle.
Accompanying drawing explanation
Fig. 1 is the structural representation of monitoring infusion control system of the present invention;
Fig. 2 is that monitoring infusion control system infrared ray electric-type liquid drop sensor of the present invention detects drop schematic diagram;
Fig. 3 is present system infrared transmitting tube and infrared receiving tube drop detection circuit theory diagrams;
Fig. 4 is present system transfusion blocking vessel schematic diagram;
Fig. 5 is present system DC motor control circuit schematic diagram;
Fig. 6 is present system keyboard circuit;
Fig. 7 is present system LCD interface circuit figure;
Fig. 8 is present system warning circuit;
Fig. 9 is present system power principle figure;
Figure 10 is present system DS18B20 and MCU connection layout;
Figure 11 is present system CAN interface circuit.
Detailed description of the invention
Below in conjunction with drawings and Examples, monitoring infusion control system of the present invention is made further explanation.
As shown in Figure 1, network infusion controller, adopt modular design method, be divided into microcontroller 100 according to function, drip fast control module 110, temperature control modules 120, alarm module 130, human-computer interaction module 140, communication module 150 functional module.
Wherein, drip fast control module 110 and comprise droplet fast collecting unit 111, step motor control unit 112 and a mechanical driving device 113.Dripping fast collecting unit 111 adopts Infrared Detection Method to gather drop signal in Murphy type tube, by infrared sensor and modulate circuit thereof, drop signal is sent into counting process in microcontroller 100, and in display screen, shows present infusion drip speed.The transfusion drip speed value that this transfusion drip speed and human-computer interaction module 140 preset compared, instruction step motor control module 112 driving device actuating device 113 steps up or unclamps tube for transfusion, thus controls transfusion drip speed.
Temperature collect module 120 comprises temperature collecting cell 121 and heater 122, temperature collecting cell 121 gathers the fluid temperature of present infusion passage by temperature sensor, temperature information is sent in microprocessor 100, show fluid temperature in real time by human-computer interaction module 140 simultaneously.This transfusion temperature is compared with the temperature preset, thus controls the break-make of heater 122.
Alarm module 130 comprises liquid level collecting unit 131 and alarm unit 132, liquid level collecting unit 131 gathers the medicinal liquid positional information in Murphy type tube, present infusion passage is closed lower than during alert locations, alarm unit 132 controls buzzer while that red LED lamp alternately being glimmered and sounds the alarm, and reminds medical personnel to come to process.
Human-computer interaction module 140 comprises key input unit 141 and screen display unit 142: arranged all infusion parameter in infusion process by key input unit 141, the transfusion speed reached needed for comprising and transfusion temperature, confirm and revise the various functional parameters of transfusion monitoring instrument.Screen display unit 142 controls display screen and intuitively reflects various information by the mode of word, numeral and figure, comprises initialization interface, arranges infusion parameter, shows transfusion drip speed and temperature, abnormal information prompting etc. in real time.
Communication module 150 is for being sent in the computer of nurse station by the infusion information (transfusion drip speed, temperature, abnormal conditions) of this transfusion monitoring instrument by wire/radio network, this place infusion information is informed nurse on duty, there is wire/wireless calling set function simultaneously.
The infusion controller of this network also comprises power module 160, and for providing running voltage for whole system circuit, power module provides voltage to be 5V unidirectional current.
Explanation is further explained below in conjunction with the operation logic of practical application circuit to infusion controller of the present invention.
One, fast control module is dripped
1, fast collecting unit is dripped
In the design, the collection of transfusion signal uses drop count technique, and it utilizes infrared optic-electric detects technique to detect drop number, and its infrared ray electric-type liquid drop sensor detects the block diagram of drop as shown in Figure 2.In the design, the weld of infusion controller breakboard construction mid-infrared light electricity launching and receiving pipe is left certain distance, the dropping funnel of infusion tube is made just in time to be placed in the both sides of infrared electro launching and receiving pipe, and circuit board to be fixed on infusion tube thus to form an infrared ray photoelectric drop detection sensor, the experimental circuit schematic diagram built is as shown in Figure 3.Infrared light-emitting diode sends parallel infrared beam, arrives infrared light sensitive diode through dropping funnel.Drip when there being drop, namely drop is had by the moment in infrared tube gap, drop has the effect of absorption and scattering to Infrared, infrared ray light sensitive diode can only the infrared ray of receiving unit, the luminous flux that reception light sensitive diode is received is not enough, the ducting capacity of infrared receiving tube declines to some extent, export irregular negative-going pulse, again this pulse is carried out amplifying, then shaping change and become low and high level, finally be input in the external interrupt mouth of single-chip microcomputer and go, single-chip microcomputer judges the presence or absence of drop according to the change of low and high level; Each water droplet produces so irregular negative-going pulse, pulse number and drop number one_to_one corresponding.By recording the number of drops in every 5 seconds, counter value being multiplied by 12 thus dripping of transfusion fast (droplet/point) can be obtained.
2, step motor control unit
After having infused, while sending sound and light alarm, the topmost work of infusion monitor controls transfusion blocking vessel to stop transfusion to proceed timely.Realizing blocking in the mode of infusion tube, native system adopts front end open with the external eccentric mode of DC micromotor of one group of reduction gearing or turn off infusion tube, as shown in Figure 4.The driving of direct current generator and control procedure are realized by DC motor Driver chip LG9110, DC motor control circuit schematic diagram as shown in Figure 5, from the control logic relation of LG9110, realize driving direct current generator clockwise or rotate counterclockwise, only need control single chip computer I/O mouth P2.6, P2.7 to export low and high level by logical relation.Set in the present system: when the output of P2.6, P2.7 mouth is 1,0, direct current generator rotates clockwise; When the output of P2.6, P2.7 mouth is 0,1, direct current generator rotates counterclockwise; When P2.6, P2.7 mouth export be 1,1 time motor stalls. in the process blocking infusion tube, arrange direct current generator clockwise or the time that rotates counterclockwise be 2 seconds, to have time enough to compress or release infusion tube.
Two, human-computer interaction module
1, key input unit
In the present system, often need input configuration information parameter, as arranged transfusion drip speed, arranging amount of liquid medicine, switching liquid, emergency call button etc.Because the button used is many, so adopt matrix keyboard.Matrix keyboard is made up of line and alignment, is caught the input information of keyboard by scanning.Sweep keyboard circuit as shown in Figure 6, wherein 16 buttons represent respectively: S01-S10 is respectively 0-9 numeral keys.In order to drip, speed arranges key to S11, S12 is that liquid measure arranges key, S13 is switch key, S14 is emergency call key, S15 is that Drops coefficient arranges key, S16 is OK button." drip speed to arrange " key to be used for setting a speed, first press this key again by numeral keys's setting speed, finally just set by OK button and drip speed; " liquid measure setting " key is used for the kind of selected infusion bottle, presses this key and selects 50Qml, 25Oml, looml infusion bottle respectively by 1,2,3 keys again, finally just arrange successfully by OK button; " switch key " uses when will be switched to second bottle when the first bottle liquid medicine is totally lost; " urgent call " key be patient in case of emergency, can press this key calling medical personnel process transfusion condition; " Drops coefficient " arranges key and is used for the Drops coefficient of selected tube for transfusion, press this key again by 1,2,3 keys select respectively 10/m1,15/ml, 20/ml, finally just arrange successfully by OK button.
2, screen display unit
Because the content of actual needs display is many, comprise the speed of setting, actual speed, Residual liquid, berth number etc., all can not show above all the elements completely with LED or character LCD, so select LCD12864 liquid crystal display.
Consider above index and actual needs, we have selected the OCM12864-9 liquid crystal display of Electronics Co., Ltd. of Jinpeng.OCM12864-9 is the LCDs of 128 × 64 dot matrix types, and it can show multiple conventional character and figure, and it directly can be connected with single-chip microcomputer, has data/address bus and 6 control lines of 8 standards.The connecting circuit figure of OCM12864-9 and single-chip microcomputer as shown in Figure 7.
Three, alarm module
The mode that warning circuit employing sound, light combine realizes.When Residual liquid is not enough, a speed is too fast or excessively slow, patient reports to the police when pressing emergency call button.During warning, buzzer sends chimes of doom, lights light emitting diode simultaneously.S1 key cancellation buzzer can be disconnected in order to not affect after other patient sends chimes of doom, make system hommization more.In order to improve the capacity of resisting disturbance of system, strengthen stability and the safety of system, input and outfan also add photoelectric coupled device TLP521-1.Warning circuit as shown in Figure 8.
Four, power module
Power supply is vital in circuit design, and voltage is too large, causes electric current excessive, easily reduces the components and parts life-span, even burns out singlechip chip, cause imponderable loss, and native system needs the level produced to comprise:
5V voltage: singlechip control chip, infrared tube, direct current generator, warning circuit.
3.3V voltage: wireless transport module.
LM7805 is three proper power supply stabilization circuits, and output current can reach IA, can provide multiple fixing output voltage (5V, 6V, 8V, 9V, 12V, 24V), can be used as single-chip microcomputer or TTL circuit power.It is extremely convenient that LM78OS uses, and price is lower, during external different components and parts, can obtain different voltage, is that current regulated power supply uses chip comparatively widely.
LM1117 is also one of power supply voltage stabilizing chip that application is maximum at present.Export and have certain voltage difference with input, its pressure reduction is 1.2V, just can be realized by 2 non-essential resistances.Also have 5 fixed voltages to export the model of (l.5V, 2.5V, 2.85V, 3.3V and 5V) in addition, output accuracy reaches 1%, and its packing forms is a lot, and we select 50T-223 to encapsulate series.
Wood system we select LM7805 and LM1117-3.3 two kinds of voltage conversion chip to realize power supply requirement.Single-chip microcomputer, sensor components and parts running voltage are 5V, if external AC is directly added use, are easy to burn device, and the convert alternating current that LM7805 plays just provides the external world becomes the galvanic function of+5V.But wireless transport module needs to be operated in 3.3V, we utilize LM1117-3.3V to change.5V voltage exports through 1.2V pressure reduction and just in time obtains 3.3V.Power circuit design as shown in Figure 9.
Five, temperature collect module
Native system, when measuring transfusion temperature, uses DS18B20 as temperature sensor.Its main feature is as follows:
(1) monobus uses, and can facilitate and the connection of MCU;
(2) original measurement precision is 0.5 DEG C, maximal accuracy 0.0625 DEG C, measuring range-55 DEG C-125 DEG C;
(3) each DS18B20 has unique serial number, can realize series connection and use;
(4) there is temperature upper and lower limit alarm function inside.
The connected mode of DS18B20 and MCU as shown in Figure 10.MCU is held by the DQ of DS18B20, can gather the temperature of transfusion liquid, and carries out temperature control by heater strip to liquid.
Six, communication module
1, wireless communication module
Wireless transport module we select be nRF2401 series.NRF2401 module is developed by Nordic company to form, and it belongs to monolithic radio frequency transceiving chip, and RF2401 property and characteristic is as follows: (1) 2.4GHz global open ISM band is exempted from licence and used; (2) power consumption is extremely low: during power emission with-5dBm, operating current is 10.5mA only, and received current only has 18mA, and under standby mode, state is only luA; (3) operating rate is high: can reach IMbps; (4) capacity of resisting disturbance is strong, and reliability is high; (5) 125 channels, meet frequency hopping communications and multi-point demand, built in hardware CRC error detection.
NRF2401 micro power radio module has two profiles RF2401B and RF2401SE at present.RF2401B is equipped with pcb board and carries antenna, ward transmission range about 20-50 meters, and RF2401SE joins external antenna, and field transmission range can reach 50-100 meters, because hospital environment is complicated, considers, selects RF240ISE.
2, wire communication module
The design of the interface circuit of design mainly between CAN communication controller and microprocessor and between CAN transceiver and physical bus of hardware circuit.It is the core of CAN interface circuit, mainly completes the communication protocol of CAN, and the major function of CAN transceiver increases communication distance; the moment capacity of resisting disturbance of raising system; protection bus, reduces Radio frequency interference (RFI), realizes thermal protection etc.
SJA1000 is CAN protocol controller, and TJA1050 is CAN high-speed transceiver.AD0 ~ the AD7 of SJA1000 connects the P2 port of MCU, the read-write operation of P3.4 and P3.5 control SJA1000 respectively, and MCU by the control to SJA1000, and then realizes data transmit-receive; TJA1050 is the interface between controller region physical bus and network (CAN) protocol controller, is a kind of high-speed CAN transceiver of standard.TJA1050 can provide differential sending performance to bus, and provide differential receptivity to CAN controller, TJA1050 provides CAN node interface, realizes the transmission of CAN data, and wherein CANH and CANL receives on CAN network.Interface hardware single channel connects as shown in figure 11.
Claims (8)
1. a monitoring infusion control system, it is characterized in that: comprise droplet fast control module, temperature control modules, alarm module, human-computer interaction module and the communication module that are connected with microcontroller respectively, this monitoring infusion control system is used for accepting and process infusion information by microcontroller, and compare with the controling parameters that human-computer interaction module presets, the infusion information after process is returned each module and carry out transfusion control.
2. a kind of monitoring infusion control system of one according to claim 1, it is characterized in that: described fast control module of dripping comprises droplet fast collecting unit, step motor control unit and a mechanical driving device, drip fast collecting unit, by infrared sensor and modulate circuit thereof, drop signal is sent into counting process in microcontroller, and compare with the transfusion drip speed value preset, step motor control module accepts command signal driving device actuating device and steps up or unclamp tube for transfusion, controls transfusion drip speed.
3. a kind of monitoring infusion control system of one according to claim 1, it is characterized in that: described temperature collect module comprises temperature collecting cell and heater, temperature collecting cell utilizes temperature sensor to gather fluid temperature information, after microcontroller process, heater accepts command signal, controls the break-make of heater.
4. a kind of monitoring infusion control system of one according to claim 1, it is characterized in that: described alarm module comprises liquid level collecting unit and alarm unit, liquid level collecting unit is for gathering medicinal liquid positional information, and transfer to microcontroller and process, alarm unit accepts command signal, close present infusion passage lower than during alert locations, alarm unit gives the alarm.
5. a kind of monitoring infusion control system of one according to claim 1, it is characterized in that: described human-computer interaction module comprises key input unit and screen display unit, key input unit and for arranging all infusion parameter in infusion process, screen display unit is used for showing infusion information in real time.
6. a kind of monitoring infusion control system of one according to claim 1, is characterized in that: described communication module is used for infusion information to be sent in on-line computer, and has calling set function.
7. a kind of monitoring infusion control system of one according to claim 1, is characterized in that: this control system also comprises power module, and for providing running voltage for whole system circuit, described power module provides voltage to be 5V unidirectional current.
8. a kind of monitoring infusion control system of one according to claim 4, is characterized in that: the while that described alarm unit alternately glimmering by controlling red LED lamp, buzzer gives the alarm.
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Cited By (21)
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| CN104984441A (en) * | 2015-06-30 | 2015-10-21 | 田秀娥 | Automatic control type heat preserving and nursing control system for operating room transfusion |
| CN104997602A (en) * | 2015-08-06 | 2015-10-28 | 李秋华 | Multifunctional neurology-used transfusion nursing device |
| CN105116792A (en) * | 2015-07-16 | 2015-12-02 | 厦门理工学院 | Wireless monitoring system of infusion apparatus |
| CN105126201A (en) * | 2015-10-16 | 2015-12-09 | 西安汇智医疗器械有限公司 | Transfusion monitoring system capable of monitoring abnormal transfusion state and performing automatic intervention |
| CN105126199A (en) * | 2015-09-06 | 2015-12-09 | 丹阳伦图电子技术有限公司 | Hospital infusion alarm system applicable to large-scale deployment and operating method thereof |
| CN105641770A (en) * | 2016-01-12 | 2016-06-08 | 济南大学 | Intelligent infusion control system |
| CN106344999A (en) * | 2016-08-31 | 2017-01-25 | 王雯雯 | Automatic infusion heat preservation nursing control system for operating room |
| CN106362242A (en) * | 2016-09-29 | 2017-02-01 | 广西大学 | Intelligent transfusion control system |
| CN107137802A (en) * | 2017-05-18 | 2017-09-08 | 南方医科大学南方医院 | A kind of constant temperature venous transfusion control system and method |
| CN107281592A (en) * | 2017-07-19 | 2017-10-24 | 徐致远 | A kind of hospital transfusion monitors prompt system automatically |
| CN107625598A (en) * | 2017-04-13 | 2018-01-26 | 宿迁学院 | Multifunctional smart patients bed nursing system |
| CN108144158A (en) * | 2018-02-28 | 2018-06-12 | 刘少杰 | Transfusion control system and its infusion method |
| CN108187186A (en) * | 2017-12-27 | 2018-06-22 | 东南大学 | A kind of monitoring infusion and vital sign detecting system |
| CN108362830A (en) * | 2018-01-15 | 2018-08-03 | 湖北民族学院 | The SCM Based infusion atmospheric monitoring system of one kind and method |
| CN108837235A (en) * | 2018-07-13 | 2018-11-20 | 江苏医药职业学院 | A kind of nurse station patient fluid infusion's dressing suggestion device |
| CN109010989A (en) * | 2018-08-20 | 2018-12-18 | 安徽国科生物科技有限公司 | A kind of accurate diagnosing and treating apparatus uses control method |
| CN109602975A (en) * | 2018-12-21 | 2019-04-12 | 中国人民解放军战略支援部队信息工程大学 | A kind of intelligent control method and system |
| CN110711289A (en) * | 2019-09-24 | 2020-01-21 | 杭州同泉物联网技术有限公司 | Infusion control system based on Internet of things |
| CN111012971A (en) * | 2020-01-15 | 2020-04-17 | 重庆市涪陵中心医院 | Surgical drip injection protection nursing device |
| CN112295048A (en) * | 2019-07-26 | 2021-02-02 | 深圳迈瑞科技有限公司 | Infusion pump and suspension control method thereof |
| WO2022007775A1 (en) * | 2020-07-07 | 2022-01-13 | 厦门松霖科技股份有限公司 | Beauty shower head |
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| CN104984441A (en) * | 2015-06-30 | 2015-10-21 | 田秀娥 | Automatic control type heat preserving and nursing control system for operating room transfusion |
| CN105116792A (en) * | 2015-07-16 | 2015-12-02 | 厦门理工学院 | Wireless monitoring system of infusion apparatus |
| CN104997602A (en) * | 2015-08-06 | 2015-10-28 | 李秋华 | Multifunctional neurology-used transfusion nursing device |
| CN105126199A (en) * | 2015-09-06 | 2015-12-09 | 丹阳伦图电子技术有限公司 | Hospital infusion alarm system applicable to large-scale deployment and operating method thereof |
| CN105126201A (en) * | 2015-10-16 | 2015-12-09 | 西安汇智医疗器械有限公司 | Transfusion monitoring system capable of monitoring abnormal transfusion state and performing automatic intervention |
| CN105641770A (en) * | 2016-01-12 | 2016-06-08 | 济南大学 | Intelligent infusion control system |
| CN106344999A (en) * | 2016-08-31 | 2017-01-25 | 王雯雯 | Automatic infusion heat preservation nursing control system for operating room |
| CN106362242A (en) * | 2016-09-29 | 2017-02-01 | 广西大学 | Intelligent transfusion control system |
| CN107625598A (en) * | 2017-04-13 | 2018-01-26 | 宿迁学院 | Multifunctional smart patients bed nursing system |
| CN107137802A (en) * | 2017-05-18 | 2017-09-08 | 南方医科大学南方医院 | A kind of constant temperature venous transfusion control system and method |
| CN107281592A (en) * | 2017-07-19 | 2017-10-24 | 徐致远 | A kind of hospital transfusion monitors prompt system automatically |
| CN108187186B (en) * | 2017-12-27 | 2021-03-19 | 东南大学 | Infusion monitoring and vital sign detection system |
| CN108187186A (en) * | 2017-12-27 | 2018-06-22 | 东南大学 | A kind of monitoring infusion and vital sign detecting system |
| CN108362830A (en) * | 2018-01-15 | 2018-08-03 | 湖北民族学院 | The SCM Based infusion atmospheric monitoring system of one kind and method |
| CN108144158A (en) * | 2018-02-28 | 2018-06-12 | 刘少杰 | Transfusion control system and its infusion method |
| CN108837235A (en) * | 2018-07-13 | 2018-11-20 | 江苏医药职业学院 | A kind of nurse station patient fluid infusion's dressing suggestion device |
| CN109010989A (en) * | 2018-08-20 | 2018-12-18 | 安徽国科生物科技有限公司 | A kind of accurate diagnosing and treating apparatus uses control method |
| CN109602975A (en) * | 2018-12-21 | 2019-04-12 | 中国人民解放军战略支援部队信息工程大学 | A kind of intelligent control method and system |
| CN112295048A (en) * | 2019-07-26 | 2021-02-02 | 深圳迈瑞科技有限公司 | Infusion pump and suspension control method thereof |
| CN110711289A (en) * | 2019-09-24 | 2020-01-21 | 杭州同泉物联网技术有限公司 | Infusion control system based on Internet of things |
| CN111012971A (en) * | 2020-01-15 | 2020-04-17 | 重庆市涪陵中心医院 | Surgical drip injection protection nursing device |
| WO2022007775A1 (en) * | 2020-07-07 | 2022-01-13 | 厦门松霖科技股份有限公司 | Beauty shower head |
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