CN201230940Y - Automatic controller of medical nursing bed - Google Patents
Automatic controller of medical nursing bed Download PDFInfo
- Publication number
- CN201230940Y CN201230940Y CNU2008200739032U CN200820073903U CN201230940Y CN 201230940 Y CN201230940 Y CN 201230940Y CN U2008200739032 U CNU2008200739032 U CN U2008200739032U CN 200820073903 U CN200820073903 U CN 200820073903U CN 201230940 Y CN201230940 Y CN 201230940Y
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- Prior art keywords
- microprocessor
- automatic controller
- angle
- control signal
- nursing care
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Abstract
The utility model belongs to the technical field of medical appliances, more particularly relates to a medical nursing bed automatic controller which is used for controlling multipath bedplates to move in a set angle and time parameter range. The medical nursing bed automatic controller comprises a control plate consisting of a first microprocessor, an angle information measuring circuit and a control signal output interface circuit, wherein the angle information measuring circuit is connected with the input interface of the first microprocessor and used for measuring the angle information of each bedplate, and the first microprocessor outputs control signals through the control signal output interface circuit. The medical nursing bed automatic controller also comprises a remote-control unit which further comprises a second microprocessor, a display connected with the second microprocessor, a memorizer used for storing the angle and time information of each path of bedplate and a keyboard interface circuit. The utility model can realize automatic control for the angle and time of a medical nursing bed with high precision and high real-time performance when the module number of the bedplates is more.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of automatic controller that is used to control the medical nursing bed motion.
Background technology
Medical bed for nursing care is a kind of bed panel is divided into a plurality of modules according to human synovial a bed, it comprise upper body, about big arm, left and right sides forearm, left and right sides thigh, left and right sides shank, left and right sides sole etc., the motion of these bed boards is to be driven by motor or hydraulic cylinder, realize that each module centers on certain axle and lifts or descending motion, thereby realize the motion of patient body.The control signal of the electromagnetic valve of motor or control hydraulic cylinder direction is sent by automatic controller exactly.Usually there is certain requirement movement angle and the time to the bed board motion so that patient feels comfortably cool.Common medical nursing bed controller, the relevant report of now existing medical nursing bed controller, mainly contain following three kinds of situations: a kind of is to adopt the combinational circuit of relay and on-off circuit to realize, this method needs the nursing staff to guard for a long time, and movement angle is to realize that by range estimation precision is very low.A kind of is to adopt traditional 51 single-chip microcomputers, and this method is difficult to reach the real-time requirement to the collection and the processing of large-scale angle information when the bed board number of modules is many.A kind of is to adopt PLC to realize that when the bed board number of modules increased, needed I/O resource increased, and cost raises, and cost performance reduces.Also occur to adopt the remote controller communication mode to realize control on operational approach, only by a fewer keys of guidance panel, the control module number is few, function singleness, man machine interface dullness.
The utility model content
Technical problem to be solved in the utility model provides a kind of button operation mode that can use a teleswitch and realizes the medical bed for nursing care bed board number of modules angle more for a long time and the automatic control of time high accuracy, high real-time.This utility model can be set parameters such as each bed board motion angle scope, movement time, intermittent time, motion total time by remote controller, can store and show these parameters, and control each bed board and under the parameter of setting, move, the bed board state is shown.For this reason, this utility model adopts following technical scheme:
A kind of medical bed for nursing care automatic controller, being used to control the multichannel bed board moves in set angle and time parameter scope, comprise the panel that constitutes by first microprocessor, angle information measuring circuit, control signal output interface circuit, described angle information measuring circuit links to each other with the input interface of first microprocessor, be used to measure the angle information at each bed board place, described first microprocessor is by control signal output interface circuit output control signal; It is characterized in that, described medical bed for nursing care automatic controller also comprises remote controller, described remote controller comprises second microprocessor and coupled liquid crystal display, be used to store the memorizer and the keyboard interface circuit of the angle and the temporal information of every roadbed plate, transmit data by the wired or wireless communication mode between described second microprocessor and the first microprocessor, be used to select the motor pattern of bed board, and by sending the motion that each roadbed plate is controlled in order to second microprocessor.
As further embodiment, medical care bed automatic controller of the present utility model, first microprocessor are the C8051F020 single-chip microcomputer, and second microprocessor is the C8051F005 single-chip microcomputer; The control signal output interface is by comprising LPT extended chip, photoelectric isolating device and the relay that links to each other successively; Liquid crystal display is LCM12864.
Compare with existing other technologies, the utlity model has following advantage:
1, easy to operate, objective interface close friend: adopt the remote controller key operation to realize control to bed board providing liquid crystal display to show parameters, to oil pump and keyboard state, each bed board motion mode status information shows with icon intuitively.
2, controllable bed board number of modules is many, and real-time is good.Realized nearly 19 unitary automatic controls, the unit number that can move simultaneously reaches 3.
3, function is many, and extensibility is strong.Can carry out automatic motor control to the movement angle and the time of bed board, can regulate bed board stop motion after certain angle, realize that patient has a rest with best posture by button.Except the bed board motor function, also increase the functions of understanding after an action of the bowels such as warm water washing, oven dry and food supply.Can expand more controlled device, the cost performance height.
Description of drawings
The medical care bed automatic controller hardware configuration of Fig. 1 composition diagram.
Concrete real-time mode
Below in conjunction with accompanying drawing this utility model is elaborated.
Referring to Fig. 1, this utility model adopts the core devices of the C8051F020 single-chip microcomputer of CYGNAL company as medical care bed automatic controller, and its peripheral circuit is made up of angle information measuring circuit, input/output interface expanded circuit, control signal output interface circuit.Communicate by UART1 and remote controller, receive from the order of the remote controller line correlation control of going forward side by side.As microcontroller, be made up of LCD interface circuit, memory circuit and matrix keyboard interface circuit by its peripheral circuit with the C8051F005 of CYGNAL company for remote controller.Respectively each circuit module is elaborated below.
Single-chip microcomputer:, the instruction execution speed of single-chip microcomputer is had relatively high expectations owing to need measure and make the decision-making of motor or electromagnetic valve forward or reverse in real time to the angle of multichannel bed board.It is that to adopt the main cause of overview single-chip microcomputer be the requirement that the powerful instruction process ability of its CIP-51 kernel can satisfy real-time collection large-scale data to integrated mixed signal SOC(system on a chip) that this utility model adopts SOC single-chip microcomputer C8051F020, in addition, chip integration has become 18 the tunnel 8,18 tunnel 12 ADC, the Flash memorizer of 64KB, the XRAM of 4KB and various EBI reduce the expansion of having swept peripheral circuit, have strengthened controller job stability and reliability.
The angle information Acquisition Circuit: angle information is from angular transducer, and this pick off is installed in the rotating shaft of bed board, and is synchronous with the motion maintenance of rotating shaft.Adopt A/D acquisition angles in the single-chip microcomputer sheet, have 8 tunnel 8 ADC0 and 8 tunnel 12 ADC1 in the single-chip microcomputer sheet, adopt builtin voltage 2.4V, can satisfy the angle precision requirement as reference voltage.
The control signal output interface circuit: limited from the signal driving force of single-chip microcomputer output, therefore the signal of 8255 outputs is sent into SN74LS240, and its drive current has strengthened the carrying load ability of single-chip microcomputer greatly up to 150mA.SN74LS240 outputs to photoelectric coupled device, photoelectric coupled device separates single-chip microcomputer and outside strong electrical control circuit, suppress interference source, improved the capacity of resisting disturbance of controller, in order to realize 19 unitary rotating controls, need carry out the expansion of I/O mouth, to remedy the deficiency of single-chip processor i/o mouth, this utility model adopts LPT extended chip 8255, is used for the rotating control to the multichannel bed board.
The LCD interface circuit: remote controller of the present utility model will show parameter and various state, it is more that each shields the information of required demonstration, therefore liquid crystal display is selected LCM12864 for use, it is the lattice lcd module of 128 row, 64 row, according to required displaying contents and screen size, the design Chinese character is 16*16, and icon is 16*8.This device running voltage is 5V, and single-chip microcomputer is 3.3V, therefore connects the pull-up resistor of 10K at the data/address bus of liquid crystal display.
Memorizer: this utility model is preserved data and is had relatively high expectations, and the data that are stored in the memorizer must guarantee that data are not lost after controller shutdown or power down, and start back data are graftabl automatically, and can satisfy the requirement of frequent read-write and long preservation.According to above requirement, select the ferroelectric memory FM24C64 of new generation of Ramtron company, it meets the demands fully, and the communication protocol of the transfer of data between FM24C64 and the single-chip microcomputer is I
2The C bus protocol.
Keyboard interface circuit: because button is many, in order to save the I/O resource, keyboard interface circuit adopts matrix structure, and as line, P1.5 ~ P1.7 is as alignment with the P2 mouth, and connects the 10K pull-up resistor.
Communication interface: because communication distance is shorter, communication data is less, and therefore as preferred forms, this utility model is directly finished communication with UART in the sheet can satisfy system requirements.In actual applications, can also realize transfer of data by adopting respectively between remote controller and the panel as the communication of infrared communication and so on.
Aspect Design of System Software, adopt structuring, modular designing technique, for panel, according to its function software is divided into: the playback initialization subroutine, serial ports of zero degree angle of mastery routine, each the roadbed plate of back that powers on sends subprogram, serial ports and receives interruption subroutine, intervalometer 0 interrupt service subroutine, angle acquisition subprogram, motion process subprogram automatically, manual movement and handle subprogram.
To remote controller, according to its function software is divided into serial ports and sends subprogram, serial ports reception interrupt service subroutine, keyboard scan subprogram, button recognition subroutine, key assignments processing subprogram, I
2C read-write subprogram, I
2C interrupt service subroutine, liquid crystal display screen reading and writing subprogram.
System's Anti-interference Design: take interference protection measure from two aspects of hardware and software respectively.
Hardware aspect (separates cabling such as analog and digital signal line when connecting up by inhibition interference source (such as increasing filter circuit at power input mouth and analog input channel), cut-out interference channel, the crystal oscillator input pin of the as close as possible single-chip microcomputer of crystal oscillator is avoided high-frequency signal line below cabling) and improve sensing element (such as the power supply of each IC and the pin place add the filter capacitor of 0.1uF) capacity of resisting disturbance three aspect improve system's capacity of resisting disturbance.
The Software Anti-interference measure mainly contains, and for resetting because of the controller that disturbs or power down causes, can carry out fault diagnosis and make respective handling by the special function register RSTSRC in the inquiry single-chip microcomputer.For some important instructions, for preventing disturbed modification of signal, can be designed to the timing scan module, make it in whole procedure execution repeatedly in service.For making program enter non-instruction area or endless loop state because of interference, adopt " house dog " technology, in instruction execution cycle, feed Canis familiaris L., when program enters endless loop, hello the Canis familiaris L. in time of failing then produces reset signal, and program is re-executed.
The work process of this controller is as follows: remote controller sends order to panel, and panel is resolved and carried out after receiving order.
The keypress function of remote controller is described below:
Turn over the screen button: each shields corresponding to a medical care bed module, translate into each screen, liquid crystal display is read current screen number pairing bed board information and is presented on the liquid crystal display screen from memorizer, these parameters comprise motion low angle, high angle, movement time, intermittent time, motion total time.
Low angle increases, reduces, and high angle increases, reduces, and movement time increases, reduces, and the intermittent time increases, reduces, and increases motion total time, reduces button: can carry out the modification of parameter to the screen of current demonstration.
Storage button: whenever, just the parameter of current screen is stored in the ferroelectric memory by next time.
Autocommand sends key: press odd number, remote controller sends to panel with the parameter of current screen, makes it carry out automatic motion command and shows on display that simultaneously a little hands icon is as autocommand unlatching sign; Press even number, then send motion automatically and cease and desist order.Little hands icon disappears immediately, as automatic motion command end mark.
Oil pump opens, cuts out button: press odd number time expression oil pump and open, and show that the oil pump icon is as opening sign.Close oil pump when pressing even number time, the oil pump icon also disappears, and closes indication as oil pump.
Institute's key combination button: odd number is pressed two Macintosh in order, and keyboard is locked, and shows the tapered end icon on liquid crystal display screen.Even number is pressed two Macintosh in order, the keyboard release, and tapered end disappears immediately, the expression unlocking condition.Manually upwards, command key downwards, when oil pump is opened, press manually button up or down, will send order to panel, control corresponding bed board work and make progress or downward motion, lift up to this button, then execution is ceased and desisted order.
Claims (5)
1. medical bed for nursing care automatic controller, being used to control the multichannel bed board moves in set angle and time parameter scope, comprise the panel that constitutes by first microprocessor, angle information measuring circuit, control signal output interface circuit, described angle information measuring circuit links to each other with the input interface of first microprocessor, be used to measure the angle information at each bed board place, described first microprocessor is by control signal output interface circuit output control signal; It is characterized in that, described medical bed for nursing care automatic controller also comprises remote controller, described remote controller comprises second microprocessor and coupled liquid crystal display, be used to store the memorizer and the keyboard interface circuit of the angle and the temporal information of every roadbed plate, transmit data by the wired or wireless communication mode between described second microprocessor and the first microprocessor, be used to select the motor pattern of bed board, and by sending the motion that each roadbed plate is controlled in order to second microprocessor.
2. medical bed for nursing care automatic controller according to claim 1 is characterized in that, the first microprocessor on the described panel is the C8051F020 single-chip microcomputer.
3. medical bed for nursing care automatic controller according to claim 1 is characterized in that, second microprocessor on the described remote controller is the C8051F005 single-chip microcomputer.
4. medical bed for nursing care automatic controller according to claim 1 is characterized in that, described control signal output interface is by comprising LPT extended chip, photoelectric isolating device and the relay that links to each other successively.
5. medical bed for nursing care automatic controller according to claim 1 is characterized in that, the liquid crystal display in the described remote controller is LCM12864.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200739032U CN201230940Y (en) | 2008-02-25 | 2008-02-25 | Automatic controller of medical nursing bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200739032U CN201230940Y (en) | 2008-02-25 | 2008-02-25 | Automatic controller of medical nursing bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230940Y true CN201230940Y (en) | 2009-05-06 |
Family
ID=40617314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200739032U Expired - Fee Related CN201230940Y (en) | 2008-02-25 | 2008-02-25 | Automatic controller of medical nursing bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230940Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198033A (en) * | 2011-03-29 | 2011-09-28 | 福建省残疾人辅助器具资源中心 | Method for realizing remote control of 25 keys of nursing bed and device thereof |
| CN102200786A (en) * | 2010-03-25 | 2011-09-28 | 北新集团建材股份有限公司 | Remote liquid level control device for light mineral wool sound-absorbing board waste systems |
| CN102436197A (en) * | 2011-10-12 | 2012-05-02 | 南通医疗器械有限公司 | Control universal circuit board for medical equipment |
| CN104049553A (en) * | 2014-07-03 | 2014-09-17 | 南通医疗器械有限公司 | Circuit control system for medical instrument bed |
| CN104932249A (en) * | 2015-06-11 | 2015-09-23 | 南通医疗器械有限公司 | Medical instrument image bed control circuit |
| CN104955434A (en) * | 2012-12-14 | 2015-09-30 | 利纳克有限公司 | Datalogger in hospital or care bed |
| CN105362003A (en) * | 2014-08-28 | 2016-03-02 | 天津康丽医疗器械有限公司 | Electric pushing bed |
| CN105708642A (en) * | 2016-01-23 | 2016-06-29 | 上海健医实业有限公司 | Multi-purpose sickbed intelligent controller |
| CN105708640A (en) * | 2016-05-06 | 2016-06-29 | 成都江雪医疗器械有限公司 | Intelligent multi-position left-right side turning sickbed |
| CN105892365A (en) * | 2016-05-06 | 2016-08-24 | 南通医疗器械有限公司 | Circuit-control circuit for medical equipment operating table |
-
2008
- 2008-02-25 CN CNU2008200739032U patent/CN201230940Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200786A (en) * | 2010-03-25 | 2011-09-28 | 北新集团建材股份有限公司 | Remote liquid level control device for light mineral wool sound-absorbing board waste systems |
| CN102198033A (en) * | 2011-03-29 | 2011-09-28 | 福建省残疾人辅助器具资源中心 | Method for realizing remote control of 25 keys of nursing bed and device thereof |
| CN102436197A (en) * | 2011-10-12 | 2012-05-02 | 南通医疗器械有限公司 | Control universal circuit board for medical equipment |
| CN104955434A (en) * | 2012-12-14 | 2015-09-30 | 利纳克有限公司 | Datalogger in hospital or care bed |
| CN104049553A (en) * | 2014-07-03 | 2014-09-17 | 南通医疗器械有限公司 | Circuit control system for medical instrument bed |
| CN105362003A (en) * | 2014-08-28 | 2016-03-02 | 天津康丽医疗器械有限公司 | Electric pushing bed |
| CN104932249A (en) * | 2015-06-11 | 2015-09-23 | 南通医疗器械有限公司 | Medical instrument image bed control circuit |
| CN105708642A (en) * | 2016-01-23 | 2016-06-29 | 上海健医实业有限公司 | Multi-purpose sickbed intelligent controller |
| CN105708640A (en) * | 2016-05-06 | 2016-06-29 | 成都江雪医疗器械有限公司 | Intelligent multi-position left-right side turning sickbed |
| CN105892365A (en) * | 2016-05-06 | 2016-08-24 | 南通医疗器械有限公司 | Circuit-control circuit for medical equipment operating table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20110225 |