CN109741557A - A kind of nursing communication call system - Google Patents
A kind of nursing communication call system Download PDFInfo
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- CN109741557A CN109741557A CN201910160893.9A CN201910160893A CN109741557A CN 109741557 A CN109741557 A CN 109741557A CN 201910160893 A CN201910160893 A CN 201910160893A CN 109741557 A CN109741557 A CN 109741557A
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Abstract
The invention discloses a kind of nursing communication call systems, including calling terminal, reply process terminal, the signal line for connecting calling terminal and reply process terminal, circuit parameter inside calling terminal is different, change generated to the electric parameter of signal line after it accesses signal line, the change of reply process terminal identification signal line parameter circuit value determines which calling terminal or which calling terminal are calling.The present invention relates to the field that hospital or home for destitute etc. need to use nursing communicating system, has and save that power consumption, cost of investment be low, beneficial effect convenient for constructing and being transformed.
Description
Technical field
The present invention relates to the field that hospital or home for destitute etc. need to use nursing communicating system, specially a kind of nursing communication is exhaled
It is system.
Background technique
With flourishing for medical and health care system and being constantly progressive for electronic technology, to medical communication calling talkback system
Higher requirements are also raised, and the nursing communicating system of traditional calling talkback function is far from meeting the modernization efforts of hospitals
Needs.In order to increase system function diversity, need to lay the communication that a large amount of cable realizes data.And practical application
In, the application of calling terminal is exactly nurse-call.Therefore simple call function can be realized.In the prior art, for function
Can diversity, magnificent appearance and make that structure is complicated and change.Therefore a kind of shield that a kind of structure is simple, satisfaction calls requirement is designed
Managing communication call system becomes a kind of urgent requirement.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of shield that a kind of structure is simple, laying-out is few, power consumption is few
Manage communication call system.
The technical solution of the technical problem to be solved in the present invention is: a kind of nursing communication call system, it is characterised in that: packet
Calling terminal, reply process terminal, the signal line for connecting calling terminal and reply process terminal are included, the signal line is equipped with
Positive and negative two conducting wires.
The calling terminal includes bed head extension.The bed head extension includes the bed label of shell and setting inside housings
Coding resistor, the challenge switch being embedded on shell.The Bed Coding resistance and challenge switch are connected in series composition bed label and exhale
Road is recalled, bed label calling circuit is attempted by signal line, and the challenge switch is self-resetting button switch.The bed label
The determination method of the electric conductivity value of coding resistor are as follows: Gbn=Gfm × 2n-1, wherein Gbn is the electric conductivity value of Bed Coding resistance, Gfm
For the electric conductivity value of room number coding resistor, n is bed label and value range is positive integer, wherein the electric conductivity value of room number coding resistor
Determine method are as follows: Gfm=G0 × m, wherein G0 is the electric conductivity value of unit resistance, and m is room number and value range is positive integer；Or
The electric conductivity value of all room number coding resistors of person is different.
The reply process terminal includes identification module and processing module.The identification module includes signal input part, letter
Number output end, the sampling resistor being serially connected between signal output end and signal input part.The processing module include controller with
And it is acquired with the voltage conversion circuit of controller electrical connection, signal acquisition circuit and confirmation device, the signal acquisition circuit
The electric signal of sampling resistor and by electric signal send to controller processing, the confirmation device include buzzer, bed label indicator light,
ACK button, to show the room number of calling and bed label and remind nurse on duty, ACK button is used for buzzer, bed label indicator light
To reset buzzer and bed label indicator light.
Preferably, the calling terminal further includes multiple function calling circuits being connected in parallel on signal line, described
Function calling circuit includes the function resistance and function button being connected in series.The determination method of the electric conductivity value of the function resistance
Are as follows: Ggj=Gbn+j × Gg0, wherein Ggj is the electric conductivity value of function resistance, and Gg0 is the electric conductivity value that functional unit identifies resistance, j
For function number, value range is positive integer, wherein Gg0=Gbn/2jmax, wherein jmaxThe number in circuit is called for function.
Preferably, the calling terminal is additionally provided with hand-held extension set, the hand-held extension set internal circuit and bed head extension it is interior
The circuit structure in portion is identical, and the hand-held extension set is connect by flexible circuit conductor with signal line.
Preferably, the signal acquisition circuit includes A/D conversion chip, and the input terminal of the A/D conversion chip is attempted by
Sampling resistor both ends, the digital signal output end of the A/D conversion chip are connected with the I/O Interface Electrical of controller,
Or, the signal acquisition circuit includes two A/D conversion chips and Hall current sensor, one of A/D
The input terminal of conversion chip is attempted by sampling resistor both ends, the input terminal of another A/D conversion chip and Hall current sensor
Output end connection, output end and the controller electrical connection of two A/D conversion chips, the Hall current sensor are set in company
On the conducting wire for connecing signal input part, signal output end.
Preferably, the reply process terminal is equipped with communication module, and the communication module and controller are electrically connected, described
Reply process terminal is set to ward doorway and connect with the calling terminal in ward, and the reply process terminal passes through communication mould
The existing monitoring system of block and hospital carries out data communication.
Preferably, the calling terminal is additionally provided with calling telephone set, and the reply process terminal is equipped with response telephone, institute
It states calling telephone set and is equipped with power supply switch hook, the switch hook of the power supply switch hook and calling telephone set is set side by side,
The power input of the calling telephone set is electrically connected by power supply switch hook and signal line, the calling telephone set
Telephone communication line is electrically connected by power supply switch hook and signal line, and the response telephone power input, phone are logical
Believe that line and signal line are electrically connected.
It preferably, further include digital adjustable power supply, the input terminal and external power supply of the digital adjustable power supply are electrical
Connection, output end and the signal line electrical connection of the digital adjustable power supply, the control of the digital adjustable power supply are defeated
Enter end and controller electrical connection.Signal power source is also serially connected between the signal input part of the identification module, signal output end
Switch.The signal power source switch is manual push button switch or Electronic control button switch.
A kind of operation method for nursing communication call system, it is characterised in that:
Step 1, the parameter for setting system, determine the electric conductivity value of unit resistance, are chosen according to the electric conductivity value G0 of unit resistance
The Bed Coding resistance of the calling terminal of each hospital bed, functional unit identify resistance, function resistance.
The electric conductivity value that step 2, basis are set, calculates under the input voltage of setting, sampling electricity when pressing calling terminal
The partial pressure of resistance later measures the data actually pressed, and the data of measurement is stored in inside controller, and by the data
It is associated with and contacts with the bed label indicator light foundation of confirmation device.
When step 3, patient or family members need nurse or doctor to carry out medical and nursing work, the calling by pressing calling terminal is opened
It puts capable calling into, or presses corresponding function button as needed.
The voltage of step 4, reply process terminal real-time detection sampling resistor, calling terminal press challenge switch or
The partial pressure of function button, sampling resistor changes, and according to detecting partial pressure numerical value, and there are the numeric ratios inside controller
It is right, corresponding bed label indicator light is lighted according to comparison result.
The bed label that step 5, nurse on duty need to service by buzzer and the confirmation of bed label indicator light, and need to service
Content, and ACK button is pressed, controller closes the bed label instruction lighted in step 4 after detecting that ACK button is pressed
Lamp.
A kind of operation method for nursing communication call system, it is characterised in that:
On the voltage and signal line that reply process terminal passes through signal acquisition circuit real-time detection sampling resistor
Current value.
Controller calculates the current value on signal line, if about setting value, or the current-carrying energy of about signal line
Power.
If about setting value, detect current value it is out-of-limit after duration, after the duration about set, control
The voltage of device control digital adjustable power supply processed reduces, alternatively, the control input that the I/O interface and signal power source of controller switch
End electrical connection, controller control signal power switch disconnect the protection realized to signal line.
Controller simultaneously issues alarm signal, prompt person maintenance.
The invention has the benefit that
1, right since voltage is low and non-alternating power supply is therefore less to the interference of medical instrument using low-voltage DC supply
The influence of human body is smaller.
2, under state of non-calling, signal line goes out off state, only reply process terminal live line work, therefore has section
The beneficial effect of energy, and in the case where large hospital hospital bed is more, energy-saving effect is become apparent.
3, signal line is simple, it is only necessary to which two conducting wires, system structure is simple, both is also convenient for safeguarding convenient for construction.
4, calling terminal safeguards and is convenient for the judgement and processing of failure convenient for personnel without complicated circuit construction.
Detailed description of the invention
Fig. 1 is the schematic diagram of the system composition of an embodiment of the present invention,
Fig. 2 is the schematic diagram of the calling terminal of an embodiment of the present invention,
Fig. 3 is the schematic diagram that an embodiment of the present invention is connect as trunk module with existing system,
Fig. 4 is the schematic diagram of an embodiment of the present invention reply process terminal,
Fig. 5 is the schematic diagram for the reply process terminal that an embodiment of the present invention is equipped with digital regulated power supply,
Fig. 6 is the schematic diagram that an embodiment of the present invention dual power supply is powered to reply process terminal.
In figure:
131, power supply switch hook；300, digital adjustable power supply；230, response telephone；130, telephone set is called；
120, extension set is held；Sgj, function button；Rgj, function resistance；224, confirm device；222, signal acquisition circuit；221, voltage
Translation circuit；223, controller；Rcy, sampling resistor；220, processing module；210, identification module；Rfm, room number coding resistor；
SWn, challenge switch；Rbn, Bed Coding resistance；110, bed head extension；200, reply process terminal；100, calling terminal；
Specific embodiment
To keep technical solution of the present invention and beneficial effect clearer, embodiments of the present invention are done further below
Explain in detail.
Embodiment one
As shown in Fig. 1 or 3, a kind of nursing communication call system, including calling terminal 100, reply process terminal 200, company
The signal line of calling terminal 100 and reply process terminal 200 is connect, wherein signal line is equipped with positive and negative two conducting wires.Calling is eventually
End 100 is arranged in the bed body of ward hospital bed, or is close on the wall of hospital bed, and function is that patient or family members is facilitated to exist
Nurse call carries out care when needing to service.Reply process terminal 200 is to respond exhaling for calling terminal 100
It cries, when detecting call signal, prompts nurse on duty that corresponding nurse is arranged to go to nurse sufferer.The present invention
In, using two-wire system signal line, signal line includes positive and negative two conducting wires, signal line at radial network topological structure,
Calling terminal 100 and reply process terminal 200 are articulated on the network of signal line composition.
Using two conducting wires as signal line, not only there is the beneficial effect for reducing cost but also had convenient for the beneficial of construction
Effect.
Calling terminal 100 can only include bed head extension 110, can also only include hand-held extension set 120, can also wrap simultaneously
Include bed head extension 110 and hand-held extension set 120.Bed head extension 110 is arranged in the head of a bed or is close on the wall of hospital bed, holds extension set
120 be position-movable hand-held device, is attached by soft wire and signal line, or passes through soft wire and bed
Head extension set 110 connects, and bed head extension 110 is connect by the electric signal of hand-held extension set 120 with signal line.If same hospital bed is same
When be equipped with bed head extension 110 and hand-held extension set 120, then bed head extension 110 is identical with the circuit structure inside hand-held extension set 120.
Bed head extension 110 includes shell and setting Bed Coding resistance Rbn inside housings, is embedded on shell
It is attempted by signal line after challenge switch SWn, Bed Coding resistance Rbn and challenge switch SWn series connection.The bed label of series connection
Coding resistor Rbn and challenge switch SWn composition bed label calls circuit.At this point, if hand-held extension set 120 connects with bed head extension 119
It connects, then the bed label calling circuit 111 held inside extension set 120 is in parallel with the bed label calling circuit 111 inside bed head extension 110.
Shell improves security performance to realize fixation and protection internal circuit between bed body or wall.In the inside of shell
Be provided with circuit board, wherein Bed Coding resistance Rbn, the challenge switch SWn being embedded on shell electric part be welded on electricity
On the plate of road, challenge switch SWn is corresponded to equipped with aperture in shell, to the button of grafting challenge switch SWn, challenge switch SWn's
Button protrudes into the outside of shell in order to press.Challenge switch SWn is self-resetting button switch, and after button, circuit is led
Logical, signal line is shorted by Bed Coding resistance Rbn access；Circuit disconnects after release, and signal line restores off-state.
Using this nursing communication call system, in the state of not pressing any button, the positive and negative anodes of signal line
Between in open circuit state, power consumption zero, only after the button press, just will appear electric current generation, but be connected
Time is shorter, therefore has the beneficial effect for saving power consumption.
Electricity in order to identify the information of multiple hospital beds while calling, inside the corresponding calling terminal 100 of each hospital bed
Road parameter is different.In the present invention, the electric conductivity value of Bed Coding resistance Rbn determines method are as follows:
Gbn=Gfm × 2n-1,
Wherein, Gfm is the electric conductivity value of room number coding resistor Rfm, and n is bed label and value range is positive integer.
At this point, any number of combination can identify, principle is that the electric conductivity value of each bed label calling resistance is suitable
In the authority credentials of each permission of 8421 yards of coding mode, the group of the permission of any authority credentials of any number in this case
It closes, it is resulting electric conductivity value and all different.Therefore after any number of calling terminal 100 is pressed, the electric conductivity value of signal line is all
It is different, therefore which can have been identified while having been pressed, when individually pressing, can equally identify.
In the present invention, why sample the operational form of conductance, be because in signal line bed label calling circuit 111 or
Person's function calling circuit 112 is when pressing, and is all that resistance is incorporated to signal line, and when resistor coupled in parallel, using resistance value calculating compared with
For complexity, and the calculating of electric conductivity value is used, is then simple add operation.Because when circuit in parallel, the conductance of resistance is to be added
, therefore be easier to understand.
Within the hospital, the quantity in ward is very right, in order to keep the difference of system more succinct, wherein room number coding resistor
The determination method of electric conductivity value are as follows:
Gfm=G0 × m,
Wherein, G0 is the electric conductivity value of unit resistance, and m is room number and value range is positive integer, or, all room numbers coding electricity
The electric conductivity value for hindering Rfm is different.The smallest resistance, that is, the smallest unit, every other resistance are equal in unit resistance, that is, this system
It is the multiple of the unit resistance.Specially two following situations:
One, using the method for unit resistance, wherein unit resistance is the smallest unit, and the parameter of all resistance is as most
Junior unit calculates, the coding method of the Bed Coding resistance of whole system at this time are as follows:
Gbn=G0 × m × 2N-1,Wherein m is room number, and n is bed label.
Two, the electric conductivity value of all room number coding resistor Rfm is different, and multiple hospital beds and disease equally may be implemented at this time
The identification that room calls simultaneously.
If same hospital bed is equipped with bed head extension 110 and hand-held extension set 120, bed head extension 110 and hand-held extension set simultaneously
Circuit structure inside 120 is identical, therefore either presses bed head extension 110 and still press hand-held extension set 110, and reply process is whole
End 200 can recognize the bed label of called hospital bed.
Circuit parameter of the reply process terminal 200 to signal lines road identifies which hospital bed is calling with this
Service, as shown in figure 4, reply process terminal 200 includes identification module 210 and processing module 220.
Identification module 210 includes signal input part, signal output end, is serially connected between signal output end and signal input part
Sampling resistor Rcy, identification module 210 to by the Parameter Switch of signal line be electric signal work processing module 220 acquire.
Processing module 220 includes controller 223 and the voltage conversion circuit 221 being electrically connected with controller 223, signal
Acquisition Circuit 222 and confirmation device 224.Signal acquisition circuit 222 acquires the electric signal of sampling resistor Rcy and transmits electric signal
Give the processing of controller 223.Confirm that device 224 includes buzzer, bed label indicator light, ACK button.Buzzer, bed label indicator light are used
To show the room number called and bed label and remind nurse on duty, ACK button is to reset buzzer and bed label indicator light.
Voltage conversion circuit 221 is converted to external power supply suitable for controller 223 and the matching of other electrical components
Power supply, common are DC/DC variation module, AD/DC conversion module and Voltage stabilizing module etc., herein no longer as the prior art
It repeats.
Controller 223 can be using single-chip microcontroller, embedded Linux system, plc module as control processor.Preferably,
Using single-chip microcontroller as microprocessor, 51 single-chip microcontrollers of the common model STC series of single-chip microcontroller in the present invention.Signal acquisition electricity
Road 222 includes A/D conversion chip, and the input terminal of A/D conversion chip is attempted by the both ends sampling resistor Rcy.The number of A/D conversion chip
Word signal output end is connected with the I/O Interface Electrical of controller 223, i.e., connects with the I/O Interface Electrical of single-chip microcontroller.A/D conversion
AD574 can be used in chip, and setting is there are two input pin, the positive terminal using one of pin, with sampling resistor Rcy
Electrical connection, the negative pole end ground connection of sampling resistor Rcy, correspondingly, A/D conversion chip is also required to good ground connection.A/D converts core
The digital signal output end of piece can directly be connect with the I/O pin of single-chip microcontroller, also may be coupled to the bus of controller 223
On, it is electrically connected by bus and the micro process of controller 223.The circuit of the voltage acquisition of sampling resistor has various ways,
It is not illustrating excessively, and is not being recorded in this specification in detail.
Preferably, in order in order to realize the protection to response processing terminal 200, using current transformer to signal line with
Controller 223 carries out insulation blocking.Hall current sensor is more accurate and small and exquisite in the prior art, therefore uses in the present invention
Hall current mutual inductor acquires electric current, and Hall current mutual inductor first is serially connected in the signal wire connecting with reply process terminal 200
On the road, controller 223 provides power supply for Hall current mutual inductor, and the signal of the output end acquisition of Hall current mutual inductor passes through A/
D conversion chip is converted to and is handled passing to controller 223 after digital signal.
The function of confirmation device 224 is to generate sound-light alarm, and nurse on duty is reminded to have call request.As shown in figure 4, buzzing
Device, bed label indicator light are to show the room number of calling and bed label and remind nurse on duty, and ACK button is to reset buzzer
With bed label indicator light.Buzzer be equipped with one, bed label indicator light and ACK button are arranged in pairs, and with actual bed label one
One is corresponding.
System disclosed by the invention, after finishing assembly, when calling terminal 100 presses call button, signal line by
It can change in the parameter of the access of Bed Coding resistance Rbn, system, the end with the signal line of reply process terminal 200
After portion loads a DC power supply, the partial pressure on sampling resistor Rcy will change, and reply process terminal 200 is adopted by detection
The partial pressure of sample resistance Rcy flows through the electric current on sampling resistor Rcy to identify which hospital bed is calling.After the completion of identification,
Controller 223 starts buzzer and the bright corresponding indicator light in control point.
In Fig. 1, the power supply and signal line of reply process terminal 200 of the invention use the same power supply.Such as Fig. 6 institute
Show, preferably, in order to guarantee to detect the accuracy of signal, signal line uses independent regulated power supply, reply process terminal 200
Using another independent regulated power supply.Reply process terminal 200 will not have an impact the parameter of signal line at this time.
Embodiment two
Sufferer is during being called, it may be necessary to a variety of different services, such as have an injection, take medicine, go to the toilet, nurse
The utensil to be carried can be determined as needed.Therefore in order to realize that the calling of different function is exhaled on the basis of example 1
Being terminal 100 further includes multiple function calling circuits 112 being connected in parallel on signal line.Function calling circuit 112 includes
The function resistance Rgj and function button Sgj of series connection.In Fig. 2, the bed head extension 110 of lower part had both been equipped with bed label and has called circuit
111 are equipped with function again calls circuit 112.
Wherein, the electric conductivity value of function resistance Rgj determines method are as follows:
Ggj=Gbn+j × Gg0, wherein Rg0 is that functional unit identifies resistance, and j is function number, and value range is positive
Integer.
Wherein, the determination method of the electric conductivity value of functional unit identification resistance are as follows:
Rg0=Rbn/2jmax, wherein jmax is the number that function calls circuit.
Which is to generate identical calling letter when rear and other bed label resistance are pressed to prevent function resistance from pressing
Number, cause nurse on duty cannot be distinguished from.For example, Gg0 Gbn/3 presses No. 1 if bed label is 1 if necessary to 3 each functions
When the third function of bed, it is two Rb1 parallel connections that function, which calls circuit, i.e., when No. 3 functions of No. 1 bed are incorporated to signal line, electricity
Leading value is 2Gb1, then may be identical as the resistance parameter that No. 2 beds press call button.Therefore the function calling in function calling circuit
Conductance when resistance individually accesses signal line cannot be identical as conductance when pressing call button of other bed labels.
At this point, can be carried out identifying when each function is pressed or when multiple function button Sgj are pressed.
Embodiment three
In the above two embodiments, this system is enough to form a complete calling system, in order to adapt to various hospitals
Existing system, and matched with existing system.In the present embodiment, on the basis of embodiment one or embodiment two,
Reply process terminal 200 is equipped with communication module.Communication module and controller 223 are electrically connected.As shown in figure 3, reply process is whole
End 200 is set to ward doorway and connect with the calling terminal 100 in ward.Reply process terminal 200 identifies that bed label is then logical
Cross communication module forwarding data.Communication module can be serial communication, if using single-chip microcontroller as controller 223, in itself
The setting of serial communication can be realized, if sampling network is current, communication module can be set to wifi communication module, wired
Network communication module, controller 223 send the data to communication module, and communication module passes through wired or will wirelessly count
Data communication is carried out according to being transmitted to the existing nursing communication call system of hospital, or with hospital existing monitoring system.
Example IV
As shown in Figure 2 and Figure 6, in order to realize call function, calling terminal 100, which is additionally provided with, calls telephone set 130, at response
It manages terminal 200 and is equipped with response telephone 230.
It calls telephone set 130 and is equipped with power supply switch hook 131, the hook switch of power supply switch hook 131 and calling telephone set 130
Switch is set side by side, when hanging on or needing to make a phone call, power supply switch hook 131 and switch hook simultaneously operation.It exhales
The power input of telephone set 130 is made to be electrically connected by power supply switch hook 131 and signal line.Call telephone set 130
Telephone communication line is electrically connected by power supply switch hook 131 and signal line, 230 power input of response telephone, phone
Communication line and signal line are electrically connected.
When calling terminal 100 needs to converse, signal line is powered to telephone set, and signal line is as communications carrier reality
Now call the communication of telephone set 130 and response telephone 230.
In the present embodiment, only pick up the telephone machine, and telephone set can just charge, while telephone set is using signal line as communication
Line and response telephone 230 are conversed.The function of having reached call has saved power consumption again.
Embodiment five
As shown in figure 5, signal acquisition circuit 222 is arranged two A/D and converts core in order to make the more accurate of signal acquisition
Piece or A/D conversion chip sample input terminal there are two setting.In embodiment one kind, point of sampling resistor Rcy can be directly acquired
Signal is pressed, the current signal of signal line can also be acquired by Hall current sensor.In the present embodiment, pass through two A/D
Conversion chip while collection voltages current signal, and then reaching keeps sampled result more accurate, and has preferably protection function
Energy.
In order to realize the protection to system, this system further includes digital adjustable power supply 300.Digital adjustable power supply 300
Input terminal and external power supply electrical connection.The output end and signal line of digital adjustable power supply 300 are electrically connected.Number can
The control signal and controller 223 of mode power supply 300 are electrically connected.Signal input part, the signal output end of identification module 210
Between be also serially connected with signal power source switch SW0.Signal power source switch SW0 is that manual push button switch or Electronic control button are opened
It closes.Controller 223 can control the output voltage and output electric current of digital adjustable power supply 300.Signal power source switch SW0 is used
When Electronic control button switch, control terminal and controller 223 are electrically connected, and control signal power source switches on-off.
Based on embodiment, to the operation method of the protection of present invention nursing communication call system are as follows:
The voltage point that step 1, reply process terminal 200 pass through 222 real-time detection sampling resistor Rcy of signal acquisition circuit
Current value in pressure and signal line.
Step 2, controller 223 calculate the current value on signal line, if about setting value, or about signal line
Current-carrying capability.Setting value is to be set in advance.
Situation one: if about setting value, detect current value it is out-of-limit after duration, about set it is lasting when
Between after, controller 223 control digital adjustable power supply 300 voltage reduce.At this point, internal system is also set with different voltages etc.
Under grade, the corresponding current and voltage data of calling terminal 100 of each hospital bed, after voltage reduces, with the electricity under new voltage class
Galvanic electricity presses data comparison, then confirms which hospital bed in calling service.
Situation two:
The control signal electrical connection of the I/O interface and signal power source switch SW0 of controller 223, controller 223 control
Signal power source switch SW0 disconnects the protection realized to signal line.
Step 3: controller 223 and alarm signal is issued, prompt person maintenance.Controller 223 can open buzzer,
Carrying out prompt person has short trouble or somewhere calling terminal 100 that can not disconnect, caused long-time calling.
Based on a kind of operation method for nursing communication call system of embodiment one, two, three, four, comprising the following steps:
Step 1, the parameter for setting system,
Determine the electric conductivity value of unit resistance,
Bed Coding resistance Rbn, the functional unit of the calling terminal 100 of each hospital bed are chosen according to the electric conductivity value of unit resistance
Identify resistance, function resistance Rgj.
The conductance of Bed Coding resistance Rbn, functional unit identification resistance, function resistance Rgj that step 2, basis are set
Value calculates the partial pressure of sampling resistor Rcy when pressing calling terminal 100 under the input voltage of setting.Later to actually pressing
Data measure comparison, and it is accurate to check whether, if in error range, illustrating that circuit setting is correct, if not in error
In range, then illustrates the failure there may be other short circuits or open circuit, need to check.Guaranteeing calculated value and measured value later
Meet under conditions of error range and the accurate data of measurement is stored in inside controller 223, and by the data and confirmation device
The specified bed label of 224 bed label indicator light and bed label indicator light establishes association connection.
When step 3, patient or family members need nurse or doctor to carry out medical and nursing work, by pressing exhaling for calling terminal 100
It calls off pass SWn to be called, or presses corresponding function button Sgj as needed.
The voltage of step 4,200 real-time detection sampling resistor Rcy of reply process terminal, is pressed in calling terminal 100
Challenge switch SWn or function button Sgj, the partial pressure of sampling resistor Rcy change, according to partial pressure numerical value is detected, with presence
Numeric ratio pair inside controller 223 lights corresponding bed label indicator light according to comparison result.
The bed label that step 5, nurse on duty need to service by buzzer and the confirmation of bed label indicator light, and need to service
Content, and ACK button is pressed, controller 223 is closed the bed label lighted in step 4 and is referred to after detecting that ACK button is pressed
Show lamp.
In conclusion only presently preferred embodiments of the present invention, is not supposed to be a limitation to the present invention, by above-mentioned
Description, relevant staff completely can without departing from the scope of the technological thought of the present invention', carry out multiplicity change
More and modify.Technical scope of the invention is not limited to the contents of the specification, all claimed range institutes under this invention
The shape stated, construction, feature and the so-called equivalent changes and modifications of spirit should all include and scope of the presently claimed invention
It is interior.
Claims (9)
1. a kind of nursing communication call system, it is characterised in that:
Including calling terminal (100), reply process terminal (200), connection calling terminal (100) and reply process terminal (200)
Signal line, the signal line be equipped with positive and negative two conducting wires,
The calling terminal (100) includes bed head extension (110),
The bed head extension (110) includes shell and setting Bed Coding resistance (Rbn) inside housings, is embedded in shell
On challenge switch (SWn),
Composition bed label calling circuit (111), the bed is connected in series in the Bed Coding resistance (Rbn) and challenge switch (SWn)
Number calling circuit (111) be attempted by signal line, the challenge switch (SWn) be self-resetting button switch,
The determination method of the electric conductivity value of the Bed Coding resistance (Rbn) are as follows:
Gbn=Gfm × 2n-1,
Wherein, Gbn is the electric conductivity value of Bed Coding resistance (Rbn), and Gfm is the electric conductivity value of room number coding resistor (Rfm), and n is bed
Number and value range be positive integer,
Wherein, the determination method of the electric conductivity value of room number coding resistor (Rfm) are as follows:
Gfm=G0 × m,
Wherein, G0 is the electric conductivity value of unit resistance, and m is room number and value range is positive integer,
Or the electric conductivity value of all room number coding resistors is different；
The reply process terminal (200) includes identification module (210) and processing module (220),
The identification module (210) include signal input part, signal output end, be serially connected in signal output end and signal input part it
Between sampling resistor (Rcy),
The processing module (220) includes controller (223) and the voltage conversion circuit with controller (223) electrical connection
(221), signal acquisition circuit (222) and confirmation device (224), the signal acquisition circuit (222) acquire sampling resistor (Rcy)
Electric signal and by electric signal send to controller (223) processing, the confirmation device (224) include buzzer, bed label indicate
Lamp, ACK button, to show the room number of calling and bed label and remind nurse on duty, confirmation is pressed for buzzer, bed label indicator light
Button is to reset buzzer and bed label indicator light.
2. a kind of nursing communication call system according to claim 1, it is characterised in that:
The calling terminal (100) further includes multiple function callings circuit (112) being connected in parallel on signal line, the function
It includes the function resistance (Rgj) and function button (Sgj) being connected in series that circuit (112), which can be called,
The determination method of the electric conductivity value of the function resistance (Rgj) are as follows:
Ggj=Gbn+j × Gg0,
Wherein, Ggj is the electric conductivity value of function resistance (Rgj), Gg0The electric conductivity value of resistance is identified for functional unit, j is function number,
Value range is positive integer,
Wherein, Gg0=Gbn/2jmax, wherein jmaxThe number in circuit is called for function.
3. a kind of nursing communication call system according to claim 2, it is characterised in that:
The calling terminal (100) is additionally provided with hand-held extension set (120), hand-held extension set (120) internal circuit and bed head extension
(110) circuit structure of inside is identical, and the hand-held extension set (120) is connect by flexible circuit conductor with signal line.
4. a kind of nursing communication call system according to claim 1, it is characterised in that:
The signal acquisition circuit (222) includes A/D conversion chip, and the input terminal of the A/D conversion chip is attempted by sampling electricity
The both ends (Rcy) are hindered, the digital signal output end of the A/D conversion chip is connected with the I/O Interface Electrical of controller (223),
Or, the signal acquisition circuit (222) includes two A/D conversion chips and Hall current sensor, one of A/D
The input terminal of conversion chip is attempted by the both ends sampling resistor (Rcy), and the input terminal and Hall current of another A/D conversion chip sense
The output end of device connects, the output end of two A/D conversion chips and controller (223) electrical connection, the Hall current sensing
Device is set on the conducting wire of connection signal input terminal, signal output end.
5. a kind of nursing communication call system according to claim 1, it is characterised in that:
The reply process terminal (200) is equipped with communication module, and the communication module and controller (223) are electrically connected, described
Reply process terminal (200) is set to ward doorway and connect with the calling terminal (100) in ward,
The reply process terminal (200) carries out data communication by the existing monitoring system of communication module and hospital.
6. a kind of nursing communication call system according to claim 1, it is characterised in that:
The calling terminal (100) is additionally provided with calling telephone set (130), and the reply process terminal (200) is equipped with answerphone
Machine (230),
The calling telephone set (130) is equipped with power supply switch hook (131), the power supply switch hook (131) and calling phone
The switch hook of machine (130) is set side by side, and the power input of calling telephone set (130) passes through power supply switch hook and letter
The telephone communication line of the electrical connection of number route, calling telephone set (130) passes through power supply switch hook (131) and signal line
Electrical connection,
Response telephone (230) power input, telephone communication line and signal line are electrically connected.
7. a kind of nursing communication call system according to claim 4, it is characterised in that:
It further include digital adjustable power supply (300), the input terminal and external power supply of the digital adjustable power supply (300) electrically connect
It connects, output end and the signal line electrical connection of the digital adjustable power supply (300), the digital adjustable power supply (300)
Control signal and controller (223) electrical connection,
Signal power source switch (SW0) is also serially connected between the signal input part of the identification module (210), signal output end,
The signal power source switch (SW0) is manual push button switch or Electronic control button switch.
8. a kind of operation method for nursing communication call system according to claim 1 or 2, it is characterised in that:
Step 1, the parameter for setting system,
Determine the electric conductivity value of unit resistance,
Bed Coding resistance (Rbn), the function list of the calling terminal (100) of each hospital bed are chosen according to the electric conductivity value G0 of unit resistance
Position identification resistance, function resistance (Rgj),
The electric conductivity value that step 2, basis are set, calculates under the input voltage of setting, sampling electricity when pressing calling terminal (100)
The partial pressure for hindering (Rcy), later measures the data actually pressed, and the data of measurement deposit controller (223) is internal,
And the data are associated with connection with the foundation of the bed label indicator light of confirmation device (224),
When step 3, patient or family members need nurse or doctor to carry out medical and nursing work, by the calling for pressing calling terminal (100)
Switch (SWn) is called, or presses corresponding function button (Sgj) as needed,
The voltage of step 4, reply process terminal (200) real-time detection sampling resistor (Rcy) is pressed in calling terminal (100)
Lower challenge switch (SWn) or function button (Sgj), the partial pressure of sampling resistor (Rcy) change, according to detecting partial pressure number
Value lights corresponding bed label indicator light according to comparison result with the numeric ratio pair internal there are controller (223),
The bed label that step 5, nurse on duty need to service by buzzer and the confirmation of bed label indicator light, and need to service interior
Hold, and press ACK button, controller (223) is closed the bed label lighted in step 4 and referred to after detecting that ACK button is pressed
Show lamp.
9. a kind of operation method for nursing communication call system according to claim 7, it is characterised in that:
Reply process terminal (200) passes through the voltage of signal acquisition circuit (222) real-time detection sampling resistor (Rcy), with
And the current value on signal line,
Controller (223) calculates the current value on signal line, if about setting value, or the current-carrying energy of about signal line
Power,
If about setting value, detect current value it is out-of-limit after duration, after the duration about set, controller
(223) voltage for controlling digital adjustable power supply (300) reduces, alternatively,
The control signal electrical connection of I/O interface and the signal power source switch (SW0) of controller (223), controller (223) control
Signal power source switch (SW0) processed disconnects the protection realized to signal line,
Controller (223) simultaneously issues alarm signal, prompt person maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160893.9A CN109741557A (en) | 2019-03-04 | 2019-03-04 | A kind of nursing communication call system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160893.9A CN109741557A (en) | 2019-03-04 | 2019-03-04 | A kind of nursing communication call system |
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| CN109741557A true CN109741557A (en) | 2019-05-10 |
Family
ID=66369180
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| CN201910160893.9A Pending CN109741557A (en) | 2019-03-04 | 2019-03-04 | A kind of nursing communication call system |
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| GB722877A (en) * | 1952-02-12 | 1955-02-02 | Commercial Radio Sound Corp | Improvements in audible and visual two-way communication and annunciation system forhospitals and the like |
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