CN104049553A - Circuit control system for medical instrument bed - Google Patents

Abstract

The invention discloses a circuit control system for a medical instrument bed. The control system comprises a micro-processing chip, wherein the micro-processing chip is connected with a key coding circuit unit, a state indicating unit, an angle measurement module, a backlight circuit unit, a power supply handling unit and a relay unit, the key coding circuit unit is connected with a key input unit, the power supply handling unit is connected with a 24V power input unit, the relay unit is connected with a throw over relay and an output coding circuit unit, the output coding circuit unit is connected with an output reversing electromagnetic valve, an output motor and an electromagnetic valve unit, and the output reversing electromagnetic valve is connected with an output oil pump unit. The circuit control system for the medical instrument bed has the advantages of being simple in structure, high in anti-interference capacity and stable in performance.

Description

A kind of medicine equipment bed circuit control system

Technical field

The present invention relates to a kind of medical equipment control system, particularly a kind of medicine equipment bed circuit control system.

Background technology

The manual manipulation device line of existing circuit control system has generally determined the quantity of line inner lead according to the number of button, and how many bases of quantity are pressed key technology decision, normal is independent button and matrix keyboard pattern, when bed body control button is more, connect manual manipulation device line more, in addition can adopt other communication chip, reduce wiring quantity, but this can cause circuit cost to increase, complex structure, the function of control circuit board is determined by driver part used, generally all fix, as adopt motor for motor-drive circuit, dual-coil electromagnetic valve be dual-coil electromagnetic valve driving circuit, the cooperation of single solenoid valve and reversal valve, also need corresponding driving circuit, these functions will be changed and need to carry out adjusted design to circuit, control and drive the general unit of two relays drivings that adopts of relay as motor, obtain positive and negative output voltage function, when loop is more, relay is more, level body position memory value, generally in factory, by the dial-up in main circuit board or keyswitch, arrange, to user, cannot arrange on hand, if occasion is set and use occasion exists error, also can cause actual use to occur deviation, for the quality of circuit control panel quality, generally by Quality Inspector, carrying out repeatedly button operation gets rid of, also some control panel has increased the torture test function carrying when design at present, but the increase of this function, as in client's use procedure, by unexpected triggering, can be there is certain security risk, in order to prevent that button is by misoperation, the occasion that General Requirements is high need to be with keypad lock, keypad lock is commonly used as unblanking and lock two key patterns, take two buttons, do not have a button reasonable in design, power supply indication, keypad lock indication, 2-3 pilot lamp of the general employing of state indication, do not have a lamp to show multi-functional reasonable, present circuit control system, generally all adopt dual operating systems, except hand-held controller, also has a set of auxiliary bed body by key control system, general two cover circuit cannot exchange, and key position is different, when hand controls is malfunctioning, in the more situation of button, be not easy to find fast the button needing.

Summary of the invention

The object of the invention is, in order to overcome above deficiency, provides a kind of simple in structure, and antijamming capability is strong, the medicine equipment bed circuit control system of stable performance.

Object of the present invention is achieved through the following technical solutions: a kind of medicine equipment bed circuit control system, control system comprises micro-chip processor, micro-chip processor and key encoding circuit unit, state indication unit, Angle Measurement Module, backlight circuit unit, power supply processing unit is connected with relay unit, key encoding circuit unit is connected with key-press input unit, power supply processing unit is connected with 24V power input unit, relay unit is connected with throw over relay and output encoder circuit unit, output encoder circuit unit and output reversing solenoid valve, output motor is connected with electromagnetic valve unit, output reversing solenoid valve is connected with output oil pump unit and is connected.

Further improvement of the present invention is: described micro-chip processor detects the signal from described key encoding circuit unit, and which button that judges key-press input unit is pressed, trigger the driving relay needing, thereby control output motor and electromagnetic valve unit work, when output voltage needs are reverse, provide reverse signal, control throw over relay, thereby realize output terminal and obtain reverse voltage, output encoder circuit unit can be adjusted arbitrarily according to the difference of load output terminal, when pressing position memory or horizontal memory function and be pressed, by Angle Measurement Module, detect bed body angle signal, deposit internal storage in, when horizontal reset or position being detected and read button and press, the value of taking measurement of an angle again, compare with the value of storage, control bed body and make corresponding actions, during factory inspection, when torture test function key is pressed, bed body carries out torture test automatically, because micro-chip processor is when programming, set torture test number of times, after torture test finishes, this function ceases to be in force automatically, user cannot carry out torture test, when user carries out abdominal operation, when surrounding environment is darker, can press backlight button, micro-processing sends a signal to backlight circuit unit, and the background light on keyboard is lighted, for hand controls provides background illumination, keypad lock button, presses locking, again presses release, if after release, a period of time does not have button to press, automatic locking.

Further improvement of the present invention is: the power input that 24V power input unit is a whole set of circuit, by power supply processing unit, power supply has been carried out to rectification, filtering, overcurrent protection, overvoltage protection, step-down, anti-interference process, for each parts provide stable power supply, key-press input unit is user key-press importation, after user presses the button needing through key encoding circuit, convert the signal that micro-chip processor can be identified to, micro-processing is received after signal, can send corresponding instruction, user, supress backlight button, export control signal to backlight circuit unit, to light backlight, state indication unit has been expressed the residing duty of current system, status lamp flicker, represent that keyboard is in the lock state, other button that now user presses except keypad lock is inoperative, when pressing keypad lock button, status lamp switches to normal bright state, now, user is as pressed position memory, micro-chip processor can call the data of Angle Measurement Module the inside, be recorded to internal storage, when user presses after corresponding action command, micro-processing is sent control signal to relay unit according to the instruction of input, throw over relay has been realized the positive and negative of out-put supply, output encoder circuit can be encoded to different loads, to drive different loads, as motor, solenoid valve, reversal valve, oil pump.

The present invention compared with prior art has the following advantages: simple in structure, cost is low, Installation and Debugging and user is easy to use, powerful, antijamming capability is strong, stable performance.

accompanying drawing explanation:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the circuit diagram of the input of 24V power supply and power supply processing unit;

Fig. 3 is micro-processing and Angle Measurement Module interface circuit figure;

Fig. 4 is the circuit diagram of key-press input unit and key encoding circuit;

Fig. 5 is the circuit diagram of backlight and state indication unit;

Fig. 6 is the circuit diagram of throw over relay and relay unit;

Fig. 7 is output encoder circuit and output motor and electromagnetic valve unit circuit diagram;

Fig. 8 is the circuit diagram of output reversing solenoid valve and Oil pump electrical machinery unit;

Number in the figure: 1-micro-chip processor, 2-key encoding circuit unit, 3-state indication unit, 4-Angle Measurement Module, 5-backlight circuit unit, 6-power supply processing unit, 7-relay unit, 8-key-press input unit, 9-24V power input unit, 10-throw over relay, 11-output encoder circuit unit, 12-output reversing solenoid valve, 13-electromagnetic valve unit, 14-export oil pump unit.

embodiment:

In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.

As Fig. 1-Fig. 8 shows the embodiment of circuit control system for a kind of medicine equipment bed of the present invention, described control system comprises micro-chip processor 1, micro-chip processor 1 and key encoding circuit unit 2, state indication unit 3, Angle Measurement Module 4, backlight circuit unit 5, power supply processing unit 6 is connected with relay unit 7, key encoding circuit unit 2 is connected with key-press input unit 8, power supply processing unit 6 is connected with 24V power input unit 9, relay unit 7 is connected with throw over relay 10 and output encoder circuit unit 11, output encoder circuit unit 11 and output reversing solenoid valve 12, output motor is connected with electromagnetic valve unit 13, output reversing solenoid valve 12 is connected with output oil pump unit 14 and is connected.

The signal that micro-chip processor 1 of the present invention detects from key encoding circuit unit 2, and which button that judges key-press input unit 8 is pressed, trigger the driving relay needing, thereby control output motor and electromagnetic valve unit 13 work, when output voltage needs are reverse, provide reverse signal, control throw over relay 10, thereby realize output terminal and obtain reverse voltage, output encoder circuit unit 11 can be adjusted arbitrarily according to the difference of load output terminal, when pressing position memory or horizontal memory function and be pressed, by Angle Measurement Module 4, detect bed body angle signal, deposit internal storage in, when horizontal reset or position being detected and read button and press, the value of taking measurement of an angle again, compare with the value of storage, control bed body and make corresponding actions, during factory inspection, when torture test function key is pressed, bed body carries out torture test automatically, because micro-chip processor is when programming, set torture test number of times, after torture test finishes, this function ceases to be in force automatically, user cannot carry out torture test, when user carries out abdominal operation, when surrounding environment is darker, can press backlight button, micro-processing sends a signal to backlight circuit unit 6, and the background light on keyboard is lighted, for hand controls provides background illumination, keypad lock button, press locking, again press release, if after release, a period of time does not have button to press, automatic locking, 24V power input unit is the power input of a whole set of circuit, by power supply processing unit, power supply has been carried out to rectification, filtering, overcurrent protection, overvoltage protection, step-down, anti-interference process, for each parts provide stable power supply, key-press input unit is user key-press importation, after user presses the button needing through key encoding circuit, convert the signal that micro-chip processor can be identified to, micro-processing is received after signal, can send corresponding instruction, user, supress backlight button, export control signal to backlight circuit unit, to light backlight, state indication unit has been expressed the residing duty of current system, status lamp flicker, represent that keyboard is in the lock state, other button that now user presses except keypad lock is inoperative, when pressing keypad lock button, status lamp switches to normal bright state, now, user is as pressed position memory, micro-chip processor can call the data of Angle Measurement Module the inside, be recorded to internal storage, when user presses after corresponding action command, micro-processing is sent control signal to relay unit according to the instruction of input, throw over relay has been realized the positive and negative of out-put supply, output encoder circuit can be encoded to different loads, to drive different loads, as motor, solenoid valve, reversal valve, oil pump.

DC24V power supply is by the input of P1 end, power supply processing unit 6 has comprised the functions such as overcurrent, overvoltage protection, power supply energising indication, anti-interference, voltage stabilizing, filtering, guaranteed the stable supplying of a whole set of circuit power, wherein: F1 is oil pump insurance, when overload, short circuit appear in oil pump, can play a protective role, F2 is the insurance of output motor or solenoid valve, when short circuit or overload appear in solenoid valve or motor, shields, and F3 is for controlling protection, when overload or short circuit appear in control section, shield, TVS1, TVS2, TVS3 are overvoltage protection Transient Suppression Diode, when overvoltage or instantaneous interference appear in certain part, can shield, R1, DS1 are power supply indication, and when switching on power, lamp is bright, and power-off lamp goes out, C5, C16, C17, C13, C14, C15, L1, T1, D6, D7 are anti-jamming circuit, can effectively suppress high frequency or low frequency signal and disturb, D5, R2 are reduction voltage circuit, can reduce voltage stabilizing chip input terminal voltage, reduce voltage stabilizing chip burden, U1, U2, C20, C22 are filter circuit of pressure-stabilizing, for circuit provides the power supply of 12V and 5V, 12V is relay use, and 5V is that CPU power supply is used, R3, R4 are bleeder circuit, in order to analog to digital conversion reference voltage to be provided to CPU, S1-S21 is key input part, and key encoding circuit unit 11 is comprised of the diode being attached thereto, P1-4 is Angle Measurement Module interface, R7 series connection was entered in the power supply of this interface, can play short-circuit protection effect, this power supply is only when needs take measurement of an angle, by CPU judgement, provided, R6, DS11 is status indicator lamp, when the normal bright interval scale keypad lock of this lamp is in released state, now push button and realize corresponding function, if supress position memory or horizontal position memory button, twice of this lamp flicker is then normal bright or extinguish representative and remembered, if pressed, read or horizontal reset button, this lantern festival fast blink, represent that a bed body realizing preset position and read or horizontal reset, equipment energising initial stage keyboard is released state automatically, if press keyboard locking key or press without any key in 20S, automatic locking, now status lamp flicker, represent that keypad lock is in the lock state, push button reactionless, now can press by keyboard locking key release, R10, U5, R8, R9, R12, DS10, DS13-20 form backlight circuit, and when backlight key is pressed, optocoupler U5 conducting now highlighted LED backlight lantern festival is lighted, and again presses backlight, extinguishes, relay unit has comprised relay driving, duty indication, wherein U4 is for being the driving chip of relay, C33 disturbs for going, RP1, DS2-9 is duty indication, and when corresponding function is triggered, corresponding pilot lamp can light, and K1-7 relay provides path for exporting, and throw over relay is K8, its objective is and controls the forward and reverse of output voltage, C29, R5 provides contact protection for throw over relay, and output encoder circuit is D1-4, D8-11, D18-21, D48-65, can according to these diodes have or not output corresponding to establishment, as to export corresponding part be that motor can connect diode, the output that now pushes button provides motor power, and output reversing solenoid valve and output Oil pump electrical machinery unit no power, if connect the diode of unit, place, enable reversing solenoid valve unit, P8, P10 can connect reversing solenoid valve, output oil pump unit is by D48, D56-58, K9, DS12, R11 forms, wherein DS12, R11 is state indication, and when oil pump is connected, lamp is bright, and power-off is extinguished, the capacitor C 1-4 of output, C9-12, C23-26, C30-31, C34-35 is neutralizing capacitance, because load is inductive load, after this electric capacity in parallel, can eliminate relay contact starting the arc phenomenon.Circuit has carried the level body position memory that can arrange, a whole set of control system is after factory's installation, carried torture test function, method of operating is: the in the situation that of keypad lock, press rising, "Left"-deviationist and hypsokinesis function simultaneously and start to carry out torture test, now bed cognition is carried out various function tests automatically, reach after the number of times needing, backlight lights, and prompting torture test finishes, therefore function limits in program, and after dispatching from the factory, this function disappears automatically; User, the in the situation that of keypad lock, presses simultaneously and resets and keyboard locking key, realizes level body position memory function; User presses positive V or anti-V button, according to program setting bed, knows from experience and automatically integrates backboard and anteversion and retroversion action, realizes corresponding function; Key-press input and key encoding circuit have formed the operating system of circuit, for human-computer interaction interface, when adopting dual operating systems, P7 interface is through one-to-two patchcord, connect the identical circuit of two covers, one as manual manipulation plate, another is as bed body operation panel, and two is only a traverse, place difference vertically for one, key position is identical, and when manual manipulation system down, user can navigate to the bed body operation push-button needing fast.

Claims (3)

1. a medicine equipment bed circuit control system, it is characterized in that: described control system comprises micro-chip processor (1), described micro-chip processor (1) and key encoding circuit unit (2), state indication unit (3), Angle Measurement Module (4), backlight circuit unit (5), power supply processing unit (6) is connected with relay unit (7), described key encoding circuit unit (2) is connected with key-press input unit (8), described power supply processing unit (6) is connected with 24V power input unit (9), described relay unit (7) is connected with throw over relay (10) and output encoder circuit unit (11), described output encoder circuit unit (11) and output reversing solenoid valve (12), output motor is connected with electromagnetic valve unit (13), described output reversing solenoid valve (12) is connected with output oil pump unit (14) and is connected.

2. a kind of medicine equipment bed circuit control system according to claim 1, it is characterized in that: described micro-chip processor (1) detects the signal from described key encoding circuit unit (2), and which button that judges described key-press input unit (8) is pressed, trigger the driving relay needing, thereby control described output motor and electromagnetic valve unit (13) work, when output voltage needs are reverse, provide reverse signal, control throw over relay (10), thereby realize output terminal and obtain reverse voltage, described output encoder circuit unit (11) can be adjusted arbitrarily according to the difference of load output terminal, when pressing position memory or horizontal memory function and be pressed, by described Angle Measurement Module (4), detect bed body angle signal, deposit internal storage in, when horizontal reset or position being detected and read button and press, the value of taking measurement of an angle again, compare with the value of storage, control bed body and make corresponding actions, during factory inspection, when torture test function key is pressed, bed body carries out torture test automatically, because micro-chip processor is when programming, set torture test number of times, after torture test finishes, this function ceases to be in force automatically, user cannot carry out torture test, when user carries out abdominal operation, when surrounding environment is darker, can press backlight button, micro-processing sends a signal to backlight circuit unit (5), and the background light on keyboard is lighted, for hand controls provides background illumination, keypad lock button, presses locking, again presses release, if after release, a period of time does not have button to press, automatic locking.

3. a kind of medicine equipment bed circuit control system according to claim 1, it is characterized in that: the power input that 24V power input unit is a whole set of circuit, by power supply processing unit, power supply has been carried out to rectification, filtering, overcurrent protection, overvoltage protection, step-down, anti-interference process, for each parts provide stable power supply, key-press input unit is user key-press importation, after user presses the button needing through key encoding circuit, convert the signal that micro-chip processor can be identified to, micro-processing is received after signal, can send corresponding instruction, as user supresses backlight button, export control signal to backlight circuit unit, to light backlight, state indication unit has been expressed the residing duty of current system, status lamp flicker, represent that keyboard is in the lock state, other button that now user presses except keypad lock is inoperative, when pressing keypad lock button, status lamp switches to normal bright state, now, user is as pressed position memory, micro-chip processor can call the data of Angle Measurement Module the inside, be recorded to internal storage, when user presses after corresponding action command, micro-processing is sent control signal to relay unit according to the instruction of input, throw over relay has been realized the positive and negative of out-put supply, output encoder circuit can be encoded to different loads, to drive different loads, as motor, solenoid valve, reversal valve, oil pump.