CN102764466B - Infusion drop monitoring system on basis of sound wave vibration signal - Google Patents

Abstract

The invention discloses an infusion drop monitoring system on the basis of a sound wave vibration signal, which comprises a terminal controller, a ZigBee router, a ZigBee coordinator and a PC (Personal Computer) upper computer. The terminal controller comprises a sound wave signal acquisition device (8), a control main board (7) and a precision stepping clamping motor (9); a diaphragm (3) is arranged on the close contact surface of the sound wave signal acquisition device (8) and a Murphy dropper (2); a diaphragm cavity (4) and a cavity duct (5) are arranged in the sound wave signal acquisition device (8); a pick-up device (6) is arranged at one end of the cavity duct (5); the pick-up device (6) is connected with the control main board (7); and the control main board (7) is connected with the precision stepping clamping motor (9) by a wire. The infusion drop monitoring system has simple and practical structure and low using cost; the infusion speed and the infusion volume are controlled by processing the drop sound wave vibrating signal; and the infusion drop monitoring system has no any radiation influence on liquid medicine.

Description

Transfusion dripping monitoring system based on sound wave vibration signal

Technical field

The invention belongs to medical instruments field, be specifically related to a kind of transfusion dripping monitoring system of controlling transfusion speed based on drop sound wave vibration signal.

Background technology

When the medical institutions such as the current large, medium and small type hospital in China and subordinate's community sanitary institute, clinic carry out infusion treatment, transfusion speed and amount of infusion are all almost inaccurate.Transfusion speed is that nurse controls flow rate of liquid by the manual pulley rotating on transfusion device, and amount of infusion is also that nurse is with only having the liquid bottles of two labellings to topple over rear estimation.The instrument and equipments such as transfusion speed monitoring are not widely adopted, so not only can affect expection therapeutic effect, and to human organ effect is responsive, need to strictly control the medicine of transfusion speed and amount of infusion for some, because individual variation body tolerance is different, particularly in operation, after major operation and the critical needs of the state of an illness strictly control the crowd of transfusion speed and amount of infusion, can cause aggravation, the even threat to life having.Infusion pump is a kind of effective ways that solve transfusion speed, adopts power extruding transfusion, and amount of infusion is certain within a certain period of time, but during dropping speed inhomogeneous; And machine cost and consumables cost too high, be only applicable to first aid and serious symptom situation.The stable performance of SJK type numeral transfusion monitoring instrument, easy to use, easy to operate, but price comparison is expensive, applies less.And at present common transfusion pipe is dripped to speed and detect and to mainly contain ultrasound examination, infrared detection, capacitance detecting, whether this type of detection has impact also under study for action on medicinal liquid.And in following medical institutions, particularly in some large and medium-sized hospitals, when patient infusion, requirement meeting to the order of accuarcy of the numerical value of transfusion speed and amount of infusion is more and more higher, therefore, on market, be badly in need of a kind of not only practical but also cheap automatic drop controller product and monitoring system appearance reliably.

Summary of the invention

The object of the invention is to for the deficiencies in the prior art, provide a kind of simple and practical, use cost is low, and to medicinal liquid without any transfusion dripping monitoring system radiation effect, control transfusion speed and amount of infusion by processing drop sound wave vibration signal.

To achieve these goals, the present invention has adopted following technical scheme: a kind of transfusion dripping monitoring system based on sound wave vibration signal, comprises terminal controller, ZigBee coordinator and PC host computer; Described terminal controller, based on ZigBee-network, carries out wireless data transmission by ZigBee coordinator and PC host computer; Described terminal controller comprises Acoustic Signal Acquisition device, controls mainboard and accurate stepping clamping motor; The close contact face of described Acoustic Signal Acquisition device and Murphy's burette arranges vibrating diaphragm, is provided with film chamber and tract in Acoustic Signal Acquisition device, and the Yu Mo chamber, one end of tract communicates, and the other end is provided with pick up; Pick up is connected with control mainboard, controls mainboard and is connected with accurate stepping clamping motor.

Described Acoustic Signal Acquisition device can gather the sound wave vibration signal producing when fluid drips in infusion bottle is fallen Murphy's burette, sound wave vibration signal is detected by pick up after amplifying via tract, after electronics amplifies, be transferred to again control mainboard and carry out bandpass filtering algorithm process, show that controlling mainboard after result controls the clamping degree of accurate stepping clamping motor, controls mainboard simultaneously result is transferred to PC host computer.

Between described terminal controller and ZigBee coordinator, be provided with ZigBee router, realize the wireless data remote transmission between a plurality of terminal controllers and PC host computer.Setting up of ZigBee router, can not only more arrange terminal controller, and can be arranged into the place away from from PC host computer, also can realize transfer of data.

In described control mainboard, be provided with data processing module and wirelessly transmitting data module etc.Controlling mainboard is mainly single-chip microcomputer, and indoor design has date processing, bandpass filtering algorithm process, storage, transmission supervisor.Data processing module and wirelessly transmitting data module be all in single-chip microcomputer with computer language editor's the functional program module with corresponding function, as mainly comprised in data processing module, bandpass filtering algorithm process, acoustic signals convert electronic signal supervisor to; Wirelessly transmitting data module has mainly comprised realizing transmits data processed result the function program of PC host computer through network coordinator.

Described wirelessly transmitting data module is ZigBee wireless network transmissions data module; Can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data.

The vibrating diaphragm that the present invention uses, does not have too large requirement to material, as long as can cause the film of vibration, all can.

Pick up has the advantages that volume is little, simple in structure, electroacoustic performance is good, price is low, is widely used in the circuit such as cassette recorder, wireless microphone and acoustic control.As Electret condenser microphone belongs to the most frequently used capacitor microphone.Because input and output impedance is very high, so a field effect transistor will be set in this microphone enclosure as impedance transducer, electret capacitor microphone needs direct-current working volts when work for this reason.And the function that pick up of the present invention need be realized does not need field effect transistor, only the simple amplifier of acoustic signals need be amplified or audion amplification.

Operation principle of the present invention:

When the fluid drips in infusion bottle is fallen Murphy's burette, producing sound wave agitates after the vibrating diaphragm of Acoustic Signal Acquisition device, the closed gas of film intracavity shakes thereupon, because tract is carefully narrow, gas pulsation amplitude is just much larger than the amplitude of film intracavity, the sound wave vibrations that drop drippage produces have been amplified thus, and frequency does not change, now use pick up (miaow head) to detect, again after amplifying, send into control mainboard, realization is converted to the signal of telecommunication by sound wave vibrations, control mainboard and drip interval time according to drop, through algorithm process, can obtain transfusion speed, again according to setting value relatively, control the clamping degree of accurate stepping clamping motor to tube for transfusion, reach and control transfusion speed object, and then by ZigBee wireless network, data processed result is transferred to PC host computer.

Compared with prior art, advantage of the present invention:

1. the present invention is simple and practical, controls accurately, and reliability is high, and capacity of resisting disturbance is strong, and production cost is low.

2. the present invention controls transfusion speed and amount of infusion by processing drop sound wave vibration signal, do not contact medicinal liquid or medicinal liquid carried out to radiation, on the property of medicine of medicinal liquid without any impact.

3. the present invention is in ZigBee-network monitoring system, and the terminal controller of a plurality of transfusion drippings can be transferred to the PC host computer in hospital via ZigBee router, ZigBee coordinator by the transfusion situation of each terminal, is convenient to hospital's unified monitoring, management.

Accompanying drawing explanation

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the structural representation of another embodiment of the present invention.

Fig. 3 is the structural representation of terminal controller in the embodiment of the present invention.

Reference numeral: infusion bottle 1, Murphy's burette 2, vibrating diaphragm 3, film chamber 4, tract 5, pick up 6, controls mainboard 7, Acoustic Signal Acquisition device 8, accurate stepping clamping motor 9.

The specific embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

Embodiment 1:

As shown in drawings, the transfusion dripping monitoring system based on sound wave vibration signal that certain hospital is used, comprises a plurality of terminal controllers, ZigBee coordinator and PC host computer; Described terminal controller, based on ZigBee-network, carries out wireless data transmission by ZigBee coordinator and PC host computer; Described terminal controller comprises Acoustic Signal Acquisition device 8, controls mainboard 7 and accurate stepping clamping motor 9; Described Acoustic Signal Acquisition device 8 arranges vibrating diaphragm 3 with the close contact face of Murphy's burette 2, is provided with film chamber 4 and tract 5 in Acoustic Signal Acquisition device 8, and the Yu Mo chamber, one end 4 of tract 5 communicates, and the other end is provided with pick up 6; Pick up 6 is connected with control mainboard 7, controls mainboard 7 and is connected with accurate stepping clamping motor 9 lines; In described control mainboard 7, be provided with data processing module and wirelessly transmitting data module; Described wirelessly transmitting data module is ZigBee wireless network transmissions data module, can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data; The sound wave vibration signal that fluid drips in described Acoustic Signal Acquisition device 8 collection infusion bottles 1 produces while falling Murphy's burette 2, sound wave vibration signal is detected by pick up 6 after amplifying via tract 5, after electronics amplifies, being transferred to control mainboard 7 processes again, show that the clamping degree of controlling 7 pairs of accurate stepping clamping motors 9 of mainboard after result controls, control mainboard 7 simultaneously result is transferred to PC host computer., when the fluid drips in infusion bottle 1 is fallen Murphy's burette 2, producing sound wave agitates after the vibrating diaphragm 3 of Acoustic Signal Acquisition device 8, closed gas in film chamber 4 shakes thereupon, because tract 5 is carefully narrow, gas pulsation amplitude is just much larger than the amplitude in film chamber 4, the sound wave vibrations that drop drippage produces have been amplified thus, and frequency does not change, now with pick up 6, detect, again after electronics amplifies, send into and control mainboard 7, realization is converted to the signal of telecommunication by sound wave vibrations, control mainboard 7 and drip interval time according to drop, through algorithm process, can obtain transfusion speed, again according to setting value relatively, control the clamping degree of 9 pairs of tube for transfusions of accurate stepping clamping motor, reach and control transfusion speed object, and then by ZigBee wireless network, data processed result is transferred to PC host computer.

Embodiment 2:

As shown in drawings, the transfusion dripping monitoring system based on sound wave vibration signal that certain hospital is used, comprises terminal controller, ZigBee router, ZigBee coordinator and PC host computer; Described terminal controller, based on ZigBee-network, carries out wireless data transmission by ZigBee router, ZigBee coordinator and PC host computer; Described terminal controller comprises Acoustic Signal Acquisition device 8, controls mainboard 7 and accurate stepping clamping motor 9; Described Acoustic Signal Acquisition device 8 arranges vibrating diaphragm 3 with the close contact face of Murphy's burette 2, is provided with film chamber 4 and tract 5 in Acoustic Signal Acquisition device 8, and the Yu Mo chamber, one end 4 of tract 5 communicates, and the other end is provided with pick up 6; Pick up 6 is connected with control mainboard 7, controls mainboard 7 and is connected with accurate stepping clamping motor 9 lines; In described control mainboard 7, be provided with data processing module and wirelessly transmitting data module; Described wirelessly transmitting data module is ZigBee wireless network transmissions data module, can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data; The sound wave vibration signal that fluid drips in described Acoustic Signal Acquisition device 8 collection infusion bottles 1 produces while falling Murphy's burette 2, sound wave vibration signal is detected by pick up 6 after amplifying via tract 5, after electronics amplifies, being transferred to control mainboard 7 processes again, show that the clamping degree of controlling 7 pairs of accurate stepping clamping motors 9 of mainboard after result controls, control mainboard 7 simultaneously result is transferred to PC host computer., when the fluid drips in infusion bottle 1 is fallen Murphy's burette 2, producing sound wave agitates after the vibrating diaphragm 3 of Acoustic Signal Acquisition device 8, closed gas in film chamber 4 shakes thereupon, because tract 5 is carefully narrow, gas pulsation amplitude is just much larger than the amplitude in film chamber 4, the sound wave vibrations that drop drippage produces have been amplified thus, and frequency does not change, now with pick up 6, detect, again after electronics amplifies, send into and control mainboard 7, realization is converted to the signal of telecommunication by sound wave vibrations, control mainboard 7 and drip interval time according to drop, through algorithm process, can obtain transfusion speed, again according to setting value relatively, control the clamping degree of 9 pairs of tube for transfusions of accurate stepping clamping motor, reach and control transfusion speed object, and then by ZigBee wireless network, data processed result is transferred to PC host computer.Setting up in the present embodiment router, is mainly for can more layout terminal controllers, and can be arranged into the place away from from PC host computer and also can realize transfer of data.

Claims (4)

1. the transfusion dripping monitoring system based on sound wave vibration signal, comprises terminal controller, ZigBee coordinator and PC host computer; It is characterized in that: described terminal controller, based on ZigBee-network, carries out wireless data transmission by ZigBee coordinator and PC host computer; Described terminal controller comprises Acoustic Signal Acquisition device (8), controls mainboard (7) and accurate stepping clamping motor (9); Described Acoustic Signal Acquisition device (8) arranges vibrating diaphragm (3) with the close contact face of Murphy's burette (2), in Acoustic Signal Acquisition device (8), be provided with film chamber (4) and tract (5), the Yu Mo chamber, one end (4) of tract (5) communicates, and the other end is provided with pick up (6); Pick up (6) is connected with control mainboard (7), controls mainboard (7) and is connected with accurate stepping clamping motor (9); The sound wave vibration signal that fluid drips in described Acoustic Signal Acquisition device (8) collection infusion bottle (1) produces while falling Murphy's burette (2), sound wave vibration signal is detected by pick up (6) after amplifying via tract (5), after electronics amplifies, be transferred to again control mainboard (7) and carry out bandpass filtering algorithm process, show that controlling mainboard (7) after result controls the clamping degree of accurate stepping clamping motor (9), controls mainboard (7) simultaneously result is transferred to PC host computer.

2. the transfusion dripping monitoring system based on sound wave vibration signal according to claim 1, it is characterized in that: between described terminal controller and ZigBee coordinator, be provided with ZigBee router, realize the wireless data remote transmission between a plurality of terminal controllers and PC host computer.

3. the transfusion dripping monitoring system based on sound wave vibration signal according to claim 1, is characterized in that: in described control mainboard (7), be provided with data processing module and wirelessly transmitting data module.

4. the transfusion dripping monitoring system based on sound wave vibration signal according to claim 3, is characterized in that: described wirelessly transmitting data module is ZigBee wireless network transmissions data module.

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