CN109739132A - A kind of electric foldable bath bed - Google Patents
A kind of electric foldable bath bed Download PDFInfo
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- CN109739132A CN109739132A CN201910013995.8A CN201910013995A CN109739132A CN 109739132 A CN109739132 A CN 109739132A CN 201910013995 A CN201910013995 A CN 201910013995A CN 109739132 A CN109739132 A CN 109739132A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/0005—Means for bathing bedridden persons
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2608—Hospital bed
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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- General Health & Medical Sciences (AREA)
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- Invalid Beds And Related Equipment (AREA)
Abstract
The invention discloses a kind of electric foldable bath bed control systems, it include: control module, sensor module, hand controller, power module, drive module, execution module, display alarm module, wherein control module, for executing control command, each component of control system is controlled；Show alarm module, including light-emitting diode display and buzzer；Drive module, for driving execution module to act；Power module, including power supply and voltage conversion circuit, power supply are used to power to each component of entire control system, and supply voltage for being converted to different operating voltages by voltage conversion circuit；Sensor module is sent to control module for detecting the parameter of bath bed, and by the parameter；Execution module tilts for bending and stretching before and after adjusting bath bed bed surface height, adjusting bath bed bed surface, adjusting bath bed bed surface.Docking for bath bed and purpose bed, the posture, center of gravity of human body on adjust automatically bath bed can be conveniently realized through the invention.
Description
It is March 15, entitled " one in 2016 that the application, which is application No. is " 201610147893.1 ", the applying date,
The divisional application of the application for a patent for invention of kind electric foldable bath bed control system and application method ".
Technical field
The present invention relates to a kind of electric foldable bath bed control system and application methods.
Background technique
Currently, countries in the world face common project: aging of population.So-called aging of population, generally acknowledges in the world
Definition refer in society that >=60 years old population is more than the 10% of total population, or >=65 years old population is more than the 7% of total population.2005
The predictive display of the United Nations's publication, world 60 years old or more proportion of aged population rise to by 10.0% in 2000 2025
15.1%, the 21.7% of the year two thousand fifty.
China Disabled Persons' Federation is issued to the various regions Association for the Handicapped a few days ago " about using year ends 2010 national disabled persons total and all kinds of, different
The notice of disabled grade number ", it is sampled according to the 6th national census China total number of people and Second National disabled person
Investigation China disabled person accounts for the ratio of country's total population and all kinds of disabled persons account for the ratio of disabled person's total number of persons, has calculated 2010
Last China disabled person total number of persons and all kinds of, different grades of disabled number, specific data are as follows: national disabled person's sum is 85,020,000
People, wherein 24,720,000 people of physical disabilities.
The elderly, disabled person and the sick and wounded people that cannot be taken care of oneself for daily life, daily bathing problem are nursing staff's chances
The problem arrived can not achieve hospital bed and dock with the smooth of bathroom, to a certain degree because lacking suitable bathing-aid tool
On affect the rehabilitation and life of patient.
Currently, for the disabled person and old man that lower limb are stood and walking ability is weaker or are lost, in daily life,
When they need bathing, traditional nursing care mode is to be moved the disabled in a manner of lifting and embrace by least 1 nursing staff
To destination, even if allowing in the physical efficiency of nursing staff, old man or sufferer can also feel uncomfortable.Turn although having currently on the market
The device of shifting, since the height of transfer device and the height of hospital bed are inconsistent, it is also desirable to nursing staff by patient from hospital bed embrace to
It moves on quadrupler.Whole process large labor intensity, while there is also some potential safety problemss.In order to improve the elderly, the disabled
With the daily bathing situation of sick and wounded people, their rehabilitation outcome is improved, it is desirable to provide a kind of electric foldable bath bed control system
It is solved with application method.
Of the invention a kind of electric foldable bath bed control system and application method can satisfy nursing staff as action not
Just the shifting of the elderly, the disabled and sick and wounded people multiply, pass in and out the bathing demand in bathroom, have Adaptive Attitude adjustment, automatic to adjust
Whole height is with bed to connection function.By center of gravity, pressure and position position feedback information, is easily moved for nursing staff and multiply, adjust
The bathing posture of patient enhances comfort level when patient's bathing.Integral elevating function carries out movement transmitting using electric pushrod, from
And realize that any position is adjustable.By position-detection sensor, the adjusting of bed surface height is carried out, it can be right with the bed of different height
It connects, bathroom and bathtub are taken in shifting.The pose adjustment of bath bed increases in head and shoulder position, lower limb position and trunk position electronic respectively
Push rod is driven using electric pushrod, it can be achieved that the adjustment of difference postures, when human body lies low and lies on the back, human body body such as bending and stretching, turning over
The weight of dry and four limbs various pieces is different, therefore being lifted, move and during pose adjustment by sickbed patients,
The control system human pressure, gravity center of human body's information feedback bath bed is needed adaptively to be adjusted.Allow user's bathing
Safety and comfort in journey, also convenient nursing personnel operate, and reduce labor intensity.The shifting that can also be used for personnel multiplies, such as by user
Carry out the transfer etc. of indoor and outdoor.When not in use, bed surface can auto-folder get up, reduce space hold.
Summary of the invention
The object of the present invention is to provide a kind of electric foldable bath bed control system and application methods, can overcome existing
Certain or certain defects of technology, improve comfort level of patient during bathing, and solving nursing staff is patient's bathing
The problem of preceding transhipment, alleviates nursing staff's labor intensity, improves transfer efficiency.
Purpose to realize the present invention, is achieved using following technical scheme:
A kind of electric foldable bath bed control system, comprising: control module, sensor module, hand controller, power module,
Drive module, execution module, display alarm module, in which:
Control module controls each component of control system for executing control command；
Show alarm module, comprising: light-emitting diode display and buzzer, light-emitting diode display is for showing electric foldable bath bed
Working condition, buzzer is for the alarm that pipes；
Drive module makes electric foldable bath bed execute corresponding actions for driving execution module to act；
Power module, including power supply and voltage conversion circuit, power supply are used to power to each component of entire control system, voltage
Supply voltage for being converted to different operating voltages by conversion circuit；
Hand controller, including operation button module, for operating electric foldable bath bed；
Sensor module is sent to control module for detecting the parameter of bath bed, and by the parameter；
Execution module, including the first executing agency, the second executing agency and third executing agency are respectively used to adjustment and wash
Bathe bed bed surface height；It is bent and stretched before and after adjustment bath bed bed surface；Adjust the left and right inclination of bath bed bed surface.
The electric foldable bath bed control system, further:
Control module includes master controller, A/D conversion module and peripheral interface, and wherein main control is for controlling control system
The operation of each component；
A/D conversion module, the simulation of the size of current for analog signal and executing agency to received supply voltage
Signal carries out analog-to-digital conversion, and by the digital data transmission after conversion to master controller；
Peripheral interface, the electric energy for receiving the operation signal of hand controller, reception power supply unit is provided to master controller.
The electric foldable bath bed control system, further:
Drive module, including three H-bridge drive circuits are respectively used to the dynamic of three executing agencies of driving execution module
Make；
The H-bridge drive circuit includes two half-bridge driven chip IR2104, power amplifier chip IRF540N, diode
1N4148, diode FR104,50V/220 μ F electrolytic capacitor, 0.1 μ F capacitor, 1.5 μ F capacitors, 30 Ω 1/8W resistance, 680 Ω 1/
8W resistance, 0.05 Ω 2W resistance.
The electric foldable bath bed control system, further:
Half-bridge driven chip IR2104 has 8 pins, in which: 1 pin connects power supply, and 2 pins connect input signal, and 3 pins are
Logic selects end, and 4 pins ground connection, 5 pins are low-pressure side floating output voltages, and 6 pins are high-pressure side floating compensation output voltages,
7 pins are high-pressure side floating output voltages, and 8 pins are high end side floating absolute value output voltages.
The electric foldable bath bed control system, further:
The voltage conversion circuit includes decompression chip, the first three-terminal voltage-stabilizing element, the second three-terminal voltage-stabilizing element.
The electric foldable bath bed control system, further:
The voltage conversion circuit further includes diode 10A10, Schottky diode SS34,50V, 220 μ F electrolytic capacitors,
16V, 220 μ F electrolytic capacitors, 10A protective tube, 0.1 μ F capacitor, 1 μ F capacitor, 10 μ F capacitors and 100 μ H inductance；
1 foot for being depressured chip LM2576HV is voltage input end, connects 24V supply voltage, supply voltage output end first meets 10A
Protective tube connects diode 10A10 anode again, and diode 10A10 cathode connects 1 foot of LM2576HV, realizes the input of 24V voltage, and two
The output of pole pipe 10A10 cathode is filtered by 50V, 220 μ F electrolytic capacitors；
3 feet for being depressured chip LM2576HV are ground terminal, ground connection；5 feet are chip select terminal, and low level is effective, ground connection；2 feet are
Voltage output end connects Schottky diode SS34 pressure stabilizing and afterflow, and 2 foot output voltages are 12V, and 2 feet connect 100 μ H energy storage inductors one
End, another termination electrolytic capacitor one end of inductance, electrolytic capacitor other end ground connection；4 feet are connected to the connecting pin of inductance and electrolytic capacitor,
As feed back input；
First circuit of three-terminal voltage-stabilizing integrated L7805 input termination 12V voltage, with 10 μ F capacitor filterings, 0.1 μ F of output end
Capacitor filtering generates 5V voltage；
Second circuit of three-terminal voltage-stabilizing integrated LM1117-3.3 input termination 5V, with 0.1 μ F capacitor filtering, 0.1 μ of output end
F capacitor filtering generates 3.3V voltage.
The electric foldable bath bed control system, further:
Power module further includes voltage detection circuit, and for detecting power supply, whether electricity is sufficient, and will test to obtain
Supply voltage information be sent to control module, control module by by after the conversion of A/D conversion module the supply voltage information with
Predetermined power source voltage threshold is compared, if being lower than given threshold, the display of control module control display alarm module
It shows the warning message of not enough power supply and buzzer call is made to alarm.
The electric foldable bath bed control system, further:
Power module further includes current detection module, and for detecting the operating current of execution module, current detection module will
The working current value of execution module is sent to control module in real time, control module by the working current value and predetermined current threshold into
Row compares, if being higher than given threshold, the display of control module control display alarm module shows the excessive prompt of electric current
Information and buzzer call is made to alarm.
The electric foldable bath bed control system, further:
The operation module of hand controller includes 8 keys, respectively adjust automatically human body attitude key, and it is upper and lower to bend and stretch adjustment
Key turns over and adjusts upper and lower key, adjust automatically and bed position key, folds bath bed and adjusts upper and lower key up and down.
The electric foldable bath bed control system, further:
Sensor module includes position sensor, pressure sensor, center-of-gravity sensor, is respectively used to detection pressure, center of gravity
And position, and the parameter information that will test is sent to control module.
The electric foldable bath bed control system, further:
Position sensor is used to detect the relative position situation of bath bed Yu purpose bed, and feeds back to control module；
Pressure sensor, for detecting pressure changing of the human body on bath bed and feeding back to control module；
Center-of-gravity sensor, for detecting gravity center shift situation of the human body on bath bed and feeding back to control module.
The electric foldable bath bed control system, further:
Pressure sensor for pressure changing of the real-time detection human body on bath bed and feeds back to control module；
Four pressure sensors are distributed in the bed surface position of the bath bed, point four regions: upper area, lower area, left side area
Domain and right area respectively correspond the left and right sides position of human head and shoulder portion position, lower limb position and trunk；
Preset threshold three, be respectively as follows: first bend and stretch pressure threshold, second bend and stretch pressure threshold and turn over pressure threshold；
Control module receives human pressure's numerical value positioned at the transmission of the pressure sensor of upper area and lower area, and
Compared with preset threshold, when upper pressure and low pressure are preset less than first when bending and stretching pressure threshold, control module passes through drive
Dynamic model block controls the second executing agency and stretches, and bath bed is made to trail；When upper pressure and low pressure are default greater than second in the wrong
When stretching pressure threshold, controls second executing agency and shrink, make the inside buckling of bath bed；
The pressure sensor of control module received bit left area and right area transmission human pressure's numerical value, and with it is pre-
If threshold value comparison, when left pressure, which is less than, turns over pressure threshold, control module controls third executing agency by drive module
It stretches, tilts bath bed gradually to the right；When user's right atrial pressure, which is greater than, turns over pressure threshold, controls the third and hold
Row mechanism is shunk, and making bath bed, inwardly left side gradually tilts.
The electric foldable bath bed control system, further:
When pressure sensor can't detect any pressure, the timer of control module starts timing, when timer reaches
When default idle time threshold, control module controls three executing agencies and quickly playbacks by the scheduled speed of service simultaneously, makes electricity
The dynamic bed surface for folding bath bed is in folded state.
The electric foldable bath bed control system, further:
Center-of-gravity sensor, setting are hit exactly in bathing bed surface, preset a numerical intervals as gravity center of human body's threshold range, control
Whether gravity center of human body's numerical value that molding block real-time reception is transmitted to center-of-gravity sensor judges gravity center of human body's numerical value in default center of gravity threshold
It is worth in range, if not in the range, control module issues control signal to drive module, drives the second executing agency and the
The stretching and contraction of three executing agencies, until the center of gravity numerical value that control module receives is within preset center of gravity threshold range,
The movement of control module stopping the second executing agency and third executing agency.
The electric foldable bath bed control system, further:
Position sensor for detecting the relative position situation of bath bed Yu purpose bed, and is sent to control module, position
Sensor altogether there are three, positioned at the left and right sides of bathing bed surface side therein, be arranged position be respectively bed surface top, middle part and
Lower part；
Control module presets a docking height threshold range, and control module is sent out according to three position sensors received
The height number sent judges whether the bed surface of bath bed reaches the height of purpose bed, if in default docking height threshold range
When interior, determine that bed surface has reached scheduled height, control module buzzer issues docking prompt；If control module judgement is washed
It bathes bed bed surface and is higher than purpose bed surface height, then control drive module and the first executing agency is driven to shrink, decline bath bed；If
It is less than purpose bed surface height, then controls drive module and the first executing agency is driven to stretch, increase bath bed.
A kind of electric foldable bath bed comprising the control system described in as above one of any.
A kind of application method of electric foldable bath bed as described above, comprising:
For electric foldable bath bed in use, turning on the power switch, A/D conversion module carries out power-cycled voltage detecting, when
When supply voltage is less than given threshold, buzzer warning；
When supply voltage is greater than given threshold, control system is worked normally, and is started key scan, is judged whether there is key
It presses, if not pressing key pressing, the timer of control module starts timing, when timer timing reaches default free time threshold
When value, bed surface auto-folder；The key scan always in the case where not pressing key pressing, until having by key pressing timer timing
Stop.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of electric foldable bath bed control system block schematic illustration of the invention；
Fig. 2 is a kind of electric foldable bath bed general structure schematic diagram of the invention；
Fig. 3 is a kind of power supply voltage converting circuit schematic diagram of electric foldable bath bed control system of the invention；
Fig. 4 is the H-bridge drive circuit and current detection module electricity of a kind of electric foldable bath bed control system of the invention
Road schematic diagram；
Fig. 5 is voltage detection module circuit diagram of the present invention；
Fig. 6 is a kind of work flow diagram of electric foldable bath bed control system of the invention.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Usually described in attached drawing here
It can arrange and design with a variety of different configurations with the component of the embodiment of the present invention shown.Therefore, below in attached drawing
The detailed description of the embodiment of the present invention of middle offer is not intended to limit the range of claimed invention, but only table
Show selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of electric foldable bath bed control system, comprising: control module, sensor module, hand controller,
Power module, drive module, execution module, display alarm module.
Control module controls each component of control system for executing control command.Control module, comprising: master control
Device, A/D conversion module and peripheral interface processed.Master controller is key control unit, for executing and the automatic or manual tune
The control command that whole human body attitude and automatic or manual are docked with bed, for controlling the operation of each component.A/D conversion module is used
Analog-to-digital conversion is carried out in the analog signal to received cell voltage (supply voltage) and actuator current size, and will conversion
Digital data transmission afterwards is to master controller；Peripheral interface, for receiving the operation signal of hand controller, receiving after power supply is converted
Electrical power input, with to master controller provide power input.
Show alarm module, comprising: light-emitting diode display and buzzer, for show electric foldable bath bed working condition,
Whether battery needs to charge, whether electric current is more than threshold value etc., and buzzer is for alarming.
Drive module, including three H-bridge drive circuits particularly respectively drive execution mould for driving execution module
The movement of three electric pushrods (executing agency) of block makes electric foldable bath bed execute corresponding actions.
It is as shown in Figure 4: H-bridge drive circuit include: two half-bridge driven chip IR2104, power amplifier chip IRF540N,
Diode 1N4148, diode FR104,50V/220 μ F electrolytic capacitor, 0.1 μ F capacitor, 1.5 μ F capacitors, 30 Ω 1/8W resistance,
680 Ω 1/8W resistance, 0.05 Ω 2W resistance.For driving the forward and reverse of a 24V3.5A electric pushrod.Half-bridge driven core
Piece IR2104 has 8 pins, in which: 1 pin connects power supply, and 2 pins connect input signal, and 3 pins are logic selection ends, and 4 pins connect
Ground, 5 pins are low-pressure side floating output voltages, and 6 pins are high-pressure side floating compensation output voltages, and 7 pins are that high-pressure side is floated
Output voltage, 8 pins are high end side floating absolute value output voltages.Wherein the capacitor between 6 and 8 pins is bootstrap capacitor, from
Lifting capacitor is the characteristic that cannot be mutated using capacitor both end voltage, and when capacitor both ends maintain certain voltage, it is negative to improve capacitor
Voltage is held, anode voltage is still held in the original pressure difference of negative terminal, and the voltage equal to anode is raised by negative terminal.Practical is exactly just
Feedback capacity, for raising supply voltage.
After IR2104 is correctly connected, 2 pins receive the pwm signal from master controller, and 3 pins, which receive, carrys out autonomous control
After the chip selection signal of device is chosen, start to work.It is exported after pwm signal is amplified.7 pins are defeated by the duty ratio of input pwm signal
Pwm signal out, 5 pins negate rear output pwm signal by the duty ratio of input pwm signal.
PWM (pulsewidth modulation) signal is to adjust electric pushrod speed.It is carried out by width of certain rule to each pulse
The size of output voltage both can be changed in modulation, and output frequency also can be changed.The general speed regulation mode for changing output frequency, i.e.,
Change duty ratio, when duty ratio is bigger, the electric pushrod speed of service is higher；When duty ratio is smaller, the electric pushrod speed of service is got over
It is low.
IRF540 is n-channel metal-oxide-semiconductor, as gate voltage VGSWhen greater than conducting voltage, metal-oxide-semiconductor conducting.When Q2 is connected in U3
When, Q3 shutdown；When Q1 is connected in U4, Q4 shutdown.
It according to the working principle of the two elements, is controlled by the control signal of master controller, master controller difference
To the corresponding control signal of PD4, PD5, PD6 and PD7 output of two IR2104 pins, control Q1, Q2, Q3, Q4 conducting and
Shutdown.It may be implemented when Q2 and Q4 is connected, Q1 and Q3 shutdown, electric pushrod Actuator forward conduction rotate forward；As Q1 and Q3
When conducting, Q2 and Q4 shutdown, electric pushrod Actuator reverse-conducting, reversion.
That is, passing through the combination of IR2104s and IRF540 element, in addition the pwm signal of master controller output, is realized
The unlatching of electric pushrod, closing, speed regulation and positive and negative rotation are controlled.
Execution module, comprising: three electric pushrods (also referred to as executing agency), for automatic or manual adjustment human body attitude and
It is docked with bed.Electric pushrod 1 (is lain down for user including hospital bed etc. for adjusting the upper and lower lifting of electric bath bed with bed
Bed) parallel docking.Electric pushrod 2, for adjusting the adjustment of bending and stretching of human body attitude, electric pushrod 3, the turn tune for human body
It is whole.It include the upper and lower parallel with purpose bed of adjustment electric bath bed with the docking of purpose bed.Executing agency's adjust automatically posture, passes through
Pressure sensor real-time monitoring human pressure's information, makes human body be in the state of the most comfortable.It executes adjust automatically to dock with bed, lead to
The position for crossing position sensor real-time detection and bed makes electric foldable bath bed and bed keeping parallelism.
Power module, comprising: battery pack (power supply), power supply voltage converting circuit, battery voltage detection circuit, current detecting
Module, supply voltage detection module.Battery pack (optionally 24V rechargeable lithium battery group), for powering to whole system.Electricity
Source module may also include charger, for charging to battery pack.Power supply voltage converting circuit, for respectively by lithium battery group
24V voltage is converted to drive module, control module, the operating voltage for showing alarm module, to give drive module (operating voltage
It 12V) powers with control module (operating voltage 5V), display alarm module (operating voltage 3.3V), makes drive module, display alarm
Module and control module work normally.
Fig. 3 shows power supply voltage converting circuit, which includes decompression chip LM2576HV, bipolarity line
Property circuit of three-terminal voltage-stabilizing integrated L7805, voltage regulator LM1117-3.3, diode 10A04, Schottky diode SS34,
50V220 μ F electrolytic capacitor, 16V220 μ F electrolytic capacitor, 10A protective tube, 0.1 μ F capacitor, 1 μ F capacitor, 10 μ F capacitors and 100 μ H
Inductance.1 foot for being depressured chip LM2576HV is voltage input end, connects 24V supply voltage, 24V supply voltage first connects fuse again
Rectifier diode 10A04 anode is connect, diode cathode connects 1 foot of LM2576HV, realizes the input of 24V voltage, diode cathode
Output accesses 1 foot of LM2576HV by 50V, the filtering of 220 μ F electrolytic capacitors again；3 feet are ground terminal, ground connection；5 feet are piece choosing
End, low level is effective, ground connection；2 feet are voltage output end, connect Schottky diode SS34 pressure stabilizing and afterflow, 2 foot output voltages are
The node of 12V, 2 feet and Schottky diode SS34 are followed by 100 μ H energy storage inductors, another termination 16V220 μ F electrolysis electricity of inductance
Hold, electrolytic capacitor other end ground connection, the electrolytic capacitor is for filtering；4 feet are connected to inductance and electrolytic capacitor connecting pin, as feedback
Input.Bipolarity linear integrated circuit L7805 input termination 12V voltage, connection type are as follows: 12V voltage output apex connection 0.1
One end of μ F capacitor, capacitor other end ground connection, realizes decoupling, reconnects 10 μ F capacitor one end, and capacitor other end ground connection is real
(above two capacitor makes Alternating Component and the reflux of disturbing pulse shorted to earth in circuit, is worked with reduction circuit for now filtering
Influence), output end is filtered respectively with 0.1 μ F and 1 μ F capacitor, generates stable 5V voltage.LM1117-3.3 input termination 5V is defeated
Enter, with 0.1 μ F capacitor filtering, 0.1 μ F capacitor filtering of output end generates stable 3.3V voltage.
Voltage detection circuit, for detecting supply voltage size, and the supply voltage information that will test is sent
To control module, control module by by after the conversion of A/D conversion module the supply voltage information and predetermined power source voltage threshold into
Row compares, if being lower than given threshold, the display of control module control display alarm module shows the alarm of not enough power supply
Information prompts to need to charge, otherwise system cisco unity malfunction.
Current detection module circuit such as Fig. 4, the electric current of electric pushrod pass through sampling resistor R6, and R6 is 0.05 Ω, 2W resistance,
The one end R6 ground connection, another termination Q3 or Q4, meeting Q3 or Q4 termination divider resistance R5, R5 is 680 Ω 1/8W resistance, PB1 sampled point
The A/D conversion I/O port of master controller is connect, C12 is 0.1F filter capacitor.
Fig. 5 show voltage detection circuit: battery voltage detection circuit includes the 22K ohm of Europe sampling resistor R7,1K
Nurse sampling resistor R9 and 0.1 μ F filter capacitor.22K Ohmic resistance R7 mono- terminates 24V cell voltage, another termination master controller phase
The AD sampling pin answered and 1K Ohmic resistance R9,1K Ohmic resistance other end ground connection, 0.1 μ F capacitor connects corresponding in master controller
AD is sampled between pin and ground, for filtering.Voltage sample is carried out from sampled point VBAT.Master controller can basis in the present invention
It detects obtained supply voltage value and obtains corresponding electricity by way of tabling look-up: such as, the voltage of 24V or more --- it is full
Electricity, 23.5V voltage --- 80% electricity, 23V voltage --- 60% electricity, 22.5V voltage --- 40% electricity, 22V electricity
Pressure --- 20% electricity.Therefore master controller is compareed according to the supply voltage value detected by inquiring preset voltage-capacity
Table can determine whether electric quantity of power supply is lower than predetermined threshold, if showing power supply lower than predetermined threshold main controller controls display
The low prompt of electricity can also control buzzer call alarm simultaneously.
Current detection module prevents the excessive damage of electric current from holding for detecting the current peak of executing agency's (electric pushrod)
The working current value of execution module is sent to control module by row mechanism, current detection module in real time, and control module is by the work
Current value is compared with predetermined current threshold, if being higher than predetermined threshold, control module control display alarm module is shown
Show that device shows the excessive prompt information of electric current.Since the maximum load current of single executing agency is 3.5, executing agency includes 3
A electric pushrod that is, when electric current is more than 1.5A, is more than current threshold, is so maximum operating currenbt threshold value is set as 10.5A
System alarm.
Hand controller, comprising: operation button module and program setup module are respectively used to operation electric foldable bath bed and are
The write-in and modification for software code (operating system), predetermined threshold, parameter of uniting.The operating system is used for the drive of control module
It is dynamic, execution module driving, the Adaptive adjusting algorithm of pressure, center of gravity parameter, the Adaptive adjusting algorithm of location parameter, for setting
Determine actuator current threshold value and battery voltage threshold, for execute automatic or manual human body attitude adjustment, automatic or manual with
Control instructions such as bed docking etc..Operation button module, comprising: 8 keys, respectively adjust automatically human body attitude key are bent and stretched
It is upper and lower to adjust key, turn adjustment key is upper and lower, adjust automatically and bed position key, folds bath bed and adjusts key up and down
It is upper and lower, for executing corresponding adjustment function.Program setup module, write-in, modification for software code (operating system)
With the parameter settings such as software upgrading upgrading, threshold value etc., code can be adjusted according to the actual demand of user.
Sensor module includes position sensor, pressure sensor, center-of-gravity sensor, is respectively used to detection pressure, center of gravity
And position parameter data.Position sensor is used for the relative position situation of real-time detection bath bed and purpose bed, and feeds back to control
Molding block.Pressure sensor for pressure changing of the real-time detection human body on bath bed and feeds back to control module.Weight
Heart sensor for gravity center shift situation of the real-time detection human body on bath bed and feeds back to control module.
Position sensor for the relative position situation of real-time detection bath bed and bed, and feeds back to control module.Position
Sensor is a kind of position sensor (such as ultrasonic sensor) of transceiver, altogether there are three, positioned at the left and right of bathing bed surface
Two sides side therein, the corresponding position of branch are head and shoulder side, trunk side and lower limb side.In the detection range of position sensor
It is interior, preset a docking height threshold range.Three position sensors send and receive signal simultaneously, for judging whether
Reach the position concordant with the height for the bed for needing to dock, when three position sensings for being located at head and shoulder side, trunk side and lower limb side
When the received position signal of device is consistent and received signal is in preset docking threshold range, it is possible to determine that be to have reached
Scheduled height.Three sound at this point, control module buzzer continuously rings indicate to prompt to come into mated condition, start to dock,
I.e. nursing staff can move to patient on bed, otherwise can also be moved to patient on bath bed from bed.Control module receives
To the height number of position sensor transmissions, judge whether the bed surface of the bath bed is higher or lower than the bed surface of butt-joint bed, such as
Fruit is above bed surface, controls the electric pushrod 1 and shrinks, declines bath bed；If it is bed surface is lower than, described electronic push away is controlled
Bar 1 stretches, and increase bath bed, realizes the highly automated alignment of the bed surface docked as needed, and buzzer connects after the completion of docking
Two sound of continuous ring, expression have been completed to dock.Under mated condition, should not movable bathing bed, also not place other objects in bedside
Product cause docking to fail in order to avoid influencing sensor.Under normal circumstances, three altitude signals that control module receives should one
(difference between three values thinks consistent within a predetermined range) is caused, when there is inconsistency, control module determines bed surface not
Flat, i.e. control drive module driving electric pushrod 2 stretches, so that bed surface is stretched flat.
Pressure sensor for pressure changing of the real-time detection human body on bath bed and feeds back to control module.
Pressure sensor is distributed in the bed surface position of the bath bed, point four regions: head shoulder regions, limbic areas, left side of trunk
Region and right side of trunk region respectively correspond the left and right sides position including head shoulder position, lower limb position and trunk.
Preset threshold three, be respectively as follows: first bend and stretch pressure threshold, second bend and stretch pressure threshold and turn over pressure threshold model
It encloses.Wherein, turning over pressure threshold range is a numerical intervals.
Control module receives human pressure's numerical value of the pressure sensor transmission positioned at head shoulder regions and limbic areas.
When the pressure that the head and shoulder portion of user and lower limb are applied to corresponding region is default less than first bends and stretches pressure threshold, control module
Electric pushrod 2 is controlled by drive module to stretch, and so that bath bed is trailed, so that human body is lain flat.When the head and shoulder portion of user is under
The pressure that limb is applied to corresponding region is greater than second default when bending and stretching pressure threshold, controls the electric pushrod 2 and shrinks, makes bathing
The inside buckling of bed, makes human body sit up.
Control module receives the trunk for being located at the pressure sensor transmission in left side of trunk region and right side of trunk region
Apply pressure value.When the pressure that the left side of trunk of user is applied to corresponding region, which is less than, turns over pressure threshold range, control
Molding block controls electric pushrod 3 by drive module and stretches, and tilts bath bed gradually to the right, turns over the oriented right side of human body
Trend, mitigate left side trunk pressure.Pressure is turned over when the pressure that the right side of trunk of user is applied to corresponding region is greater than
It when threshold range, controls the electric pushrod 3 and shrinks, making bath bed, inwardly left side gradually tilts, and turns over the oriented left side of human body
Trend, mitigate right side trunk pressure.
When pressure sensor can't detect any pressure, the timer of master controller starts timing.When timer reaches
When default idle time threshold, illustrate that nobody uses electric foldable bath bed within this period, electric pushrod 1,2,3 is same
When quickly playback by the scheduled speed of service, so that the bed surface of electric foldable bath bed is in folded state.
Explanation about the scheduled speed of service: the speed of service usually set is lower, be in order to make user comfortable and
One speed of setting.In an idle state, the speed of service wants high than usual, because nobody takes, primarily to allowing bed
Face fast folding.The pwm signal that speed regulation master controller exports is adjusted.
Center-of-gravity sensor for gravity center shift situation of the real-time detection human body on bath bed and feeds back to control module.
One center-of-gravity sensor is located at bathing bed surface center, is a kind of 3-axis acceleration sensor.A numerical intervals are preset as people
Weight heart threshold range.Gravity center of human body's numerical value that control module real-time reception is transmitted to center-of-gravity sensor, judges gravity center of human body's number
Whether value is less than or greater than default center of gravity threshold range (namely judge whether to be less than minimum value or be greater than maximum value), by adaptive
Balanced algorithm and closed-loop control are answered, control module issues control signal to drive module, drives electric pushrod 2 and electric pushrod 3
Stretching and contraction, the center of gravity numerical value for arriving control module real-time reception is within preset center of gravity threshold range, so that human body
It is in the state of balance always in bed surface.
The implementation of electric foldable bath bed control system and application method of the invention will be carried out specifically below
It is bright.As shown in Fig. 2, electric foldable bath bed includes: hand controller 1, controller 2, charger 6, position sensor 7, pressure sensing
Device 8, center-of-gravity sensor 9, attaching plug 10.Controller 2 has control module, power module and display alarm mould by housing seal
Block.Power switch 3, LED light 4, charger interface 5 are arranged in 2 surface of shell of controller.It is provided on 1 shell of hand controller
Operation button module, comprising: adjust automatically posture key 11 bends and stretches ↓ key 12, bends and stretches ↑ key 13, and turn ↓ key 14 turns over
↑ key 15, bed surface height ↓ key 16, bed surface height ↑ key 17, automatic bed surface height adjust key 18.
When electric foldable bath bed charges, the charging plug of charger is inserted into the charger interface 5 of 2 lower section of controller,
Input terminal plug 10 is inserted on 220V power supply, and the power indication LED on charger is bright, shows that power supply is connected, the bright expression of red light
It is charging, green light indicates charging complete.Attaching plug and charging plug are pulled up, is kept well in case charging next time uses.
General primary charging needs or so 2 hours.Battery charging should be able to once guarantee that bed body is gone up and down 30 times.
For electric foldable bath bed in use, turning on the power switch 3, control module carries out cycle battery voltage detecting, works as lithium
When cell voltage is less than given threshold, LED light 4 flashes, and buzzer warning must charge at this time.When lithium battery voltage is big
When given threshold, system worked well starts key scan, judges whether there is by key pressing, main if not pressing key pressing
The timer of controller starts timing, when timer timing reaches default idle time threshold, bed surface auto-folder.Do not having
Key scan always in the case where by key pressing is stopped until having by key pressing timer timing.
" automatic bed surface height adjustment " key and " automatic pose adjustment " key have priority, when " automatic bed surface height
Adjustment " is pressed, other keys deactivations, until the adjustment of bed surface height finishes；When " automatic pose adjustment " presses key pressing, other keys
Failure, until pose adjustment finishes.Button operation is manually adjusted, by the identification operation on hand controller, is adjusted to as needed
Suitable posture or height.
When hearing in controller the tweeting sound for issuing " drop ... drop ", indicate that battery capacity will exhaust, this use
It needs to charge immediately after the completion.
Outstanding feature of the invention is the automatic pose adjustment of electric foldable bath bed and automatically with bed to connection function, convenient for shield
Reason personnel be transfer and carry long-term bed disability patient, be able to achieve conveniently, intelligence, effortlessly move multiply, can effectively mitigate
Labor intensity of the nursing staff in bathing.Meanwhile the operation of electric foldable bath bed is succinct, intelligence, program can be according to reality
Demand adjustment, the operation of convenient nursing personnel.It can be widely used for a variety of places such as family, hospital, home for destitute, there is wide city
Field prospect.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. a kind of electric foldable bath bed control system, comprising: control module, sensor module, hand controller, power module, drive
Dynamic model block, execution module, display alarm module, it is characterised in that: control module, for executing control command, to control system
Each component is controlled；Show alarm module, including light-emitting diode display and buzzer；Drive module, for driving execution module dynamic
Make；Power module, including power supply and voltage conversion circuit, power supply are used to power to each component of entire control system, voltage conversion
Supply voltage for being converted to different operating voltages by circuit；Sensor module, for detecting the parameter of bath bed, and should
Parameter is sent to control module；Execution module, for adjusting bath bed bed surface height, adjustment bath bed bed surface front and back is bent and stretched, is adjusted
Whole bath bed bed surface tilts.
2. electric foldable bath bed control system according to claim 1, it is characterised in that:
Control module includes master controller, A/D conversion module and peripheral interface, and wherein master controller is each for controlling control system
The operation of component；
A/D conversion module, the analog signal of the size of current for analog signal and executing agency to received supply voltage
Analog-to-digital conversion is carried out, and by the digital data transmission after conversion to master controller；
Peripheral interface, the electric energy for receiving the operation signal of hand controller, reception power supply unit is provided to master controller.
3. electric foldable bath bed control system according to claim 1, it is characterised in that:
Hand controller includes operation module, which includes 8 keys, respectively adjust automatically human body attitude key, is bent and stretched
Adjust upper and lower key, turn over and adjust upper and lower key, adjust automatically and bed position key, fold bath bed adjust up and down it is upper and
Lower key.
4. electric foldable bath bed control system according to claim 1, it is characterised in that:
Sensor module includes position sensor, pressure sensor, center-of-gravity sensor, is respectively used to detection pressure, center of gravity and position
It sets, and the parameter information that will test is sent to control module.
5. electric foldable bath bed control system according to claim 4, it is characterised in that:
Position sensor is used to detect the relative position situation of bath bed Yu purpose bed, and feeds back to control module；
Pressure sensor, for detecting pressure changing of the human body on bath bed and feeding back to control module；
Center-of-gravity sensor, for detecting gravity center shift situation of the human body on bath bed and feeding back to control module.
6. electric foldable bath bed control system according to claim 5, it is characterised in that: the pressure sensor is used
In pressure changing of the real-time detection human body on bath bed and feed back to control module；Four pressure sensors are distributed in institute
The bed surface position of bath bed is stated, point four regions: upper area, lower area, left area and right area respectively correspond people
Body head shoulder position, lower limb position and trunk left and right sides position.
7. electric foldable bath bed control system according to claim 6, it is characterised in that: the pressure sensor it is pre-
If threshold value three, be respectively as follows: first bend and stretch pressure threshold, second bend and stretch pressure threshold and turn over pressure threshold.
8. a kind of electric foldable bath bed, it is characterised in that including the control system as described in claim 1-7 is one of any.
9. a kind of application method of electric foldable bath bed as claimed in claim 8, comprising:
For electric foldable bath bed in use, turning on the power switch, control module carries out power-cycled voltage detecting, works as supply voltage
When less than given threshold, buzzer warning；
When supply voltage be greater than given threshold when, control system work normally, start key scan, judge whether there is key by
Under, if not pressing key pressing, the timer of control module starts timing, when timer timing reaches default idle time threshold
When, bed surface auto-folder；The key scan always in the case where not pressing key pressing is stopped until having by key pressing timer timing
Only.
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| CN201910013995.8A CN109739132A (en) | 2016-03-15 | 2016-03-15 | A kind of electric foldable bath bed |
| CN201610147893.1A CN105785863B (en) | 2016-03-15 | 2016-03-15 | A kind of electric foldable bath bed control system and application method |
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| CN110353926A (en) * | 2019-07-08 | 2019-10-22 | 徐州雅来基桑拿设备有限公司 | A kind of foldable sauna bath bed |
| CN112198823A (en) * | 2020-10-09 | 2021-01-08 | 南通大学 | Multifunctional intelligent folding bed control system |
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| CN113491415A (en) * | 2020-04-07 | 2021-10-12 | Lg电子株式会社 | Bed control method |
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| CN105785863B (en) | 2019-02-15 |
| CN105785863A (en) | 2016-07-20 |
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Application publication date: 20190510 |