CN108931954A - Temperature signals simulation output equipment - Google Patents
Temperature signals simulation output equipment Download PDFInfo
- Publication number
- CN108931954A CN108931954A CN201810988917.5A CN201810988917A CN108931954A CN 108931954 A CN108931954 A CN 108931954A CN 201810988917 A CN201810988917 A CN 201810988917A CN 108931954 A CN108931954 A CN 108931954A
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- body temperature
- control unit
- microprocessor control
- temperature
- output end
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- 238000004088 simulation Methods 0.000 title claims abstract description 31
- 230000036760 body temperature Effects 0.000 claims abstract description 114
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000011664 signaling Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21024—Analog output
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
The present invention provides a kind of temperature signals simulation output equipment, the body temperature analog module and environment temperature monitoring modular including microprocessor control unit and with microprocessor control unit communication connection；Body temperature analog module includes body temperature analog circuit, and body temperature analog circuit includes variable resistance；Real time environment temperature is sent to microprocessor control unit by environment temperature monitoring modular；Microprocessor control unit determines the resistance value of the corresponding variable resistance of temperature signals at a temperature of real time environment, and microprocessor control unit control changes the resistance value of variable resistance.By the variation of the resistance value of the variable resistance of the corresponding body temperature analog circuit of the variation of real-time monitoring temperature, guarantee the precision of the output resistance of temperature signals simulation output equipment, while also realizing that the resistance value of equipment continuously exports.
Description
Technical field
The present invention relates to field of medical device, more particularly, to temperature signals simulation output equipment.
Background technique
Physiological signal simulation is mainly used for the quality control of patient's multi-parameter monitor and technical training, temperature signals are normal
The one kind for the physiological signal seen, realization principle are the corresponding relationships using thermistor resistance value and temperature, are replaced with resistance value
The simulation of assigned temperature progress body temperature.
The method of the current most common temperature signals simulation output is precision resister or the use using several fixations
Potentiometer.Precision resister can simulate specific several temperature values, but can not achieve the continuous output of temperature value, and existing
Monitoring probe for detecting temperature wide variety, the corresponding resistance value of body temperature is not quite similar.It is continuous that resistance value is although able to achieve with potentiometer
Output, because potentiometer precision itself is not high, and as temperature change has a greater change, makes the body temperature simulated have larger mistake
Difference.
Summary of the invention
The present invention, which provides, a kind of to be overcome the above problem or at least is partially solved the above problem.
According to an aspect of the present invention, a kind of temperature signals simulation output equipment is provided, the equipment includes micro process
Device control unit and the body temperature analog module and environment temperature monitoring modular communicated to connect with the microprocessor control unit；
The body temperature analog module includes body temperature analog circuit, and the body temperature analog circuit includes variable resistance；
Real time environment temperature is sent to the microprocessor control unit by the environment temperature monitoring modular；
The microprocessor control unit determines the electricity of the corresponding variable resistance of temperature signals at a temperature of real time environment
Resistance value, the microprocessor control unit control change the resistance value of the variable resistance.
The embodiment of the present invention proposes that a kind of beneficial effect of temperature signals simulation output equipment includes:
By the variation of the resistance value of the variable resistance of the corresponding body temperature analog circuit of the variation of real-time monitoring temperature, guarantee body
The precision of the output resistance of warm signal imitation output equipment, while also realizing that the resistance value of equipment continuously exports.
Detailed description of the invention
Fig. 1 is according to a kind of schematic diagram of temperature signals simulation output equipment provided in an embodiment of the present invention；
Fig. 2 is a kind of structural block diagram of the embodiment of temperature signals simulation output equipment provided by the invention；
Fig. 3 is a kind of circuit diagram of the embodiment of temperature signals simulation output equipment provided by the invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Temperature signals simulation output equipment replaces the simulation of assigned temperature progress temperature signals by output resistance, generally
Use several fixations precision resister or can be with the adjustable potentiometer of resistance, but precision resister can not achieve resistance value
Continuous output, although the adjustable potentiometer of resistance is able to achieve the continuous output of resistance value, but due to the resistance value of potentiometer with
Temperature change have a greater change, potentiometer resistance value in different temperatures is different, will cause temperature signals simulation output equipment
The resistance error of output is larger, and the body temperature simulated has large error.
In view of the above-mentioned problems, being as shown in Figure 1 this embodiment of the invention provides a kind of temperature signals simulation output equipment
A kind of schematic diagram of the logical temperature signals simulation output equipment of inventive embodiments, as shown in Figure 1, provided in an embodiment of the present invention one
Kind temperature signals simulation output equipment.It is connected including microprocessor control unit 100 and the control of microprocessor control unit 100
Body temperature analog module 200 and environment temperature monitoring modular 300, body temperature analog module 200 include body temperature analog circuit 210, the body
Warm analog circuit 210 includes variable resistance.
Real time environment temperature is sent to microprocessor control unit 100 by environment temperature monitoring modular 300.Microprocessor control
Unit 100 processed determines the resistance value of the corresponding variable resistance of temperature signals at a temperature of real time environment, microprocessor control unit 100
Control changes the resistance value of variable resistance.
Specifically, environment temperature monitoring modular 300 can be temperature sensor or thermistor, environment temperature monitors mould
Block 300 is sent to microprocessor control unit 100 after measuring real time environment temperature, and microprocessor control unit 100 is according to body temperature
The temperature coefficient of the variable resistance of analog circuit 210 determines the corresponding body temperature analog circuit of temperature signals under current environmental temperature
The resistance value of 210 variable resistance, control change the output resistance of body temperature analog circuit 210, i.e. body temperature analog module exports
Body temperature analog signal guarantees that the resistance value of body temperature analog circuit 210 is not influenced by temperature variation, improves body temperature analog circuit
The precision of the body temperature analog signal of 210 output.
It is exported after microprocessor control unit control body temperature analog circuit simulation body temperature analog signal, not can determine that output
Body temperature analog signal it is whether correct, for said circumstances, a kind of reality of temperature signals simulation output equipment provided by the invention
It applies in example, which further includes the body temperature calibration module connecting with microprocessor control unit 100 and body temperature analog module 200
400。
The output end of body temperature analog circuit 210 is connect with body temperature calibration module 400, and body temperature calibration module 400 is by body temperature mould
The body temperature analog signal that quasi- module 200 exports is sent to microprocessor control unit 100,100 basis of microprocessor control unit
The data of body temperature calibration module output judge whether body temperature analog signal is correct.
The body temperature analog signal that body temperature analog module 200 exports is sent to micro process by body temperature calibration module 400 in real time
Whether device control unit 100, microprocessor control unit 100 can correct with the body temperature analog signal of the real-time judge output, and
Carry out subsequent operation.
As a kind of alternative embodiment, set as shown in Figures 2 and 3 for a kind of temperature signals simulation output provided by the invention
The structural block diagram and circuit diagram of a standby embodiment.
By Fig. 2 and Fig. 3 it is found that in a kind of embodiment of temperature signals simulation output equipment provided by the invention, body temperature mould
Quasi- module 200 further includes first choice switch 220, the output end of body temperature analog circuit 210 by the first choice switch 220 and
The signaling interface of body temperature calibration module 400 or equipment.It controls the body temperature analog signal that body temperature analog circuit 210 exports and passes through body temperature
Calibration module 400 is sent into microprocessor control unit and is judged whether correctly, or the signaling interface output Jing Guo equipment.
Specifically, the output end of body temperature analog circuit 210 is connect with the input terminal of first choice switch 220, first choice
The output end of switch 220 is connect with the signaling interface of body temperature calibration module 400 or equipment.The output of first choice switch 220
When end is connect with body temperature calibration module 400, the output end of body temperature analog circuit 210 is connect with body temperature calibration module 400.
Before body temperature analog module exports body temperature analog signal by signaling interface and microprocessor control unit judges
When real time environment temperature change is more than setting range, microprocessor control unit controls the output end and body temperature of first choice switch
Calibration module connection.Microprocessor control unit according to the data that body temperature calibration module exports judge body temperature analog signal it is correct it
Afterwards, the output end of microprocessor control unit control first choice switch is connect with signaling interface.
Specifically, microprocessor control unit first controls first choice switch after body temperature simulation output equipment is started to work
220 output end is connect with body temperature calibration module 400, and the body temperature analog signal that body temperature analog circuit 210 exports at this time is sent to
Microprocessor control unit 100, microprocessor control unit 100 is after judging that the body temperature analog signal is correct, the first choosing of control
The signaling interface of the output end and equipment of selecting switch 220 connects, the body temperature analog signal warp that body temperature analog circuit 210 exports at this time
Signaling interface output is crossed, which exports body temperature analog signal by the signaling interface.The equipment course of work
In, when microprocessor control unit 100 detects that variation of ambient temperature is larger by environment temperature monitoring modular 300, more than setting
When limits, control 220 switchback body temperature calibration module 400 of first choice switch calibrates body temperature analog signal, defeated again after calibration
Out, guarantee body temperature output within the scope of permissible accuracy.
The analog signal that body temperature analog module 200 generates is sent to microprocessor control unit by body temperature calibration module 400
100, the structure of body temperature calibration module 400 is unrestricted, a kind of temperature signals simulation output equipment provided in an embodiment of the present invention,
Body temperature calibration module 400 is opened including the first potential-divider network 410, the second potential-divider network 420, second selection switch 430, third selection
It closes 440 and the 4th and selects switch 450.
The first choice switch 220, second selects switch 430, third selection switch 440 and the 4th selection switch 450 equal
For either-or switch, output end includes two terminals.
When the output end of first choice switch 220 is connect with body temperature calibration module 400, the output of first choice switch 220
One terminal at end selects the input terminal of switch 430 to connect with second, the another terminal of the output end of first choice switch 220 and the
The input terminal connection of three selection switches 440.Second selection switch 430 and third select switch 440 output end with first point
The connection of the input terminal of the input terminal of pressure network network 410 or the second potential-divider network 420.4th selection switch 450 input terminal with it is micro-
Processor control unit 100 connects, the output end of output end and the first potential-divider network 410 or the second potential-divider network 420 it is defeated
Outlet connection.For the different range situation of 200 output signal of body temperature analog module, sent out after selecting different potential-divider networks to divide
Give microprocessor control unit 100.
During specifically used, the process packet of the embodiment output body temperature analog signal of temperature signals simulation output equipment
It includes:
Microprocessor control unit 100 obtains current environmental temperature by environment temperature monitoring modular 300, according to working as front ring
The temperature-coefficient of electrical resistance of the potentiometer of border temperature and body temperature analog circuit 210 generates impedance simulation data, and the data is sent out
Give body temperature analog module 200.Body temperature analog module 200 exports body temperature analog signal, the control of microprocessor control unit 100 the
The output end of one selection switch 220 is connect with body temperature calibration module 400, and body temperature calibration module 400 is defeated by body temperature analog module 200
Body temperature analog signal out is sent to micro-controller control unit 100.Micro-controller control unit 100 judges body temperature simulation letter
Whether number correct, the signaling interface of output end and equipment that first choice switch 220 is controlled when correct connects, and output body temperature is simulated
Signal；Data duplication above-mentioned steps are adjusted when abnormal, are exported after signal is normal.
Variable resistance may include potentiometer, but potentiometer error is larger, and for said circumstances, the embodiment of the present invention is mentioned
A kind of temperature signals simulation output equipment supplied, body temperature analog circuit includes the potentiometer and variable resistance being connected in series or in parallel
Circuit.
It can be according to the range flexible choice potentiometer and variable resistance electricity for the output resistance that body temperature analog module needs
The resistance value on road improves the precision of body temperature analog circuit output resistance, while guaranteeing the precision of the output resistance of equipment,
The resistance value for also achieving equipment continuously exports.
When the negligible amounts of potentiometer and variable resistance circuit, connection relationship are simple, body temperature analog module output resistance
Precision raising it is limited, for said circumstances, from the figure 3, it may be seen that a kind of temperature signals simulation provided in an embodiment of the present invention is defeated
Equipment out, variable resistance circuit include the first variable resistance circuit 212 and the second adjustable resistance circuit 213.Potentiometer 211 and
It connects after one variable resistance circuit, 212 parallel connection with the second adjustable resistance circuit 213.
The output resistance of body temperature analog module characterizes the body temperature analog signal of equipment output, body temperature analog circuit 210
After the potentiometer 211 of use is in parallel with the first variable resistance circuit 212 with the concatenated circuit knot of the second adjustable resistance circuit 213
Structure, output resistance R=R3+R1*R2/(R1+R2), wherein R1、R2And R3Respectively potentiometer 211, the first variable resistance circuit
212 and the second adjustable resistance circuit 213 resistance value.
The output resistance R=R of body temperature analog circuit 2103+R1*R2/(R1+R2) can resistance value according to demand range, spirit
The resistance value living for selecting potentiometer 211, the first variable resistance circuit 212 and the second adjustable resistance circuit 213, guarantees output resistance
The precision of value.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (9)
1. a kind of temperature signals simulation output equipment, which is characterized in that the equipment include microprocessor control unit and with institute
State the body temperature analog module and environment temperature monitoring modular of microprocessor control unit communication connection；
The body temperature analog module includes body temperature analog circuit, and the body temperature analog circuit includes variable resistance；
Real time environment temperature is sent to the microprocessor control unit by the environment temperature monitoring modular；
The microprocessor control unit determines the resistance value of the corresponding variable resistance of temperature signals at a temperature of real time environment,
The microprocessor control unit control changes the resistance value of the variable resistance.
2. equipment according to claim 1, which is characterized in that the equipment further includes body temperature calibration module；
The output end of the body temperature analog circuit is connect with the body temperature calibration module, and the body temperature calibration module is by the body temperature
The body temperature analog signal of analog module output is sent to the microprocessor control unit, the microprocessor control unit
Judge whether the body temperature analog signal is correct according to the data that the body temperature calibration module exports.
3. equipment according to claim 2, which is characterized in that the body temperature analog module further includes first choice switch；
The output end of the body temperature analog circuit is connect with the input terminal that the first choice switchs, the first choice switch
Output end is connect with the signaling interface of the equipment or the body temperature calibration module.
4. equipment according to claim 3, which is characterized in that the body temperature analog module is exported by the signaling interface
Before the body temperature analog signal and the microprocessor control unit judges that the real time environment temperature change is more than setting
When range, the microprocessor control unit controls the output end of the first choice switch and the body temperature calibration module connects
It connects.
5. equipment according to claim 3, which is characterized in that the microprocessor control unit is calibrated according to the body temperature
After the data of module output judge that the body temperature analog signal is correct, microprocessor control unit control first choosing
The output end for selecting switch is connect with the signaling interface.
6. equipment according to claim 2, which is characterized in that the body temperature calibration module includes the first potential-divider network, the
Two potential-divider networks, the second selection switch, third selection switch and the 4th selection switch；
One terminal of the output end of the first choice switch is connect with the input terminal of the second selection switch, first choosing
The another terminal for selecting the output end of switch is connect with the input terminal of third selection switch；
It is described second selection switch and the third selection switch output end with the input terminal of first potential-divider network or
The input terminal of second potential-divider network connects；
The input terminal of the 4th selection switch is connect with the microprocessor control unit, output end and the first partial pressure net
The connection of the output end of the output end of network or second potential-divider network.
7. equipment according to claim 1, which is characterized in that the variable resistance includes the electricity being connected in series or in parallel
Position device and variable resistance circuit.
8. equipment according to claim 7, which is characterized in that the quantity of the variable resistance circuit is two, and point
It Wei not the first variable resistance circuit and the second adjustable resistance circuit；
It connects after the potentiometer is in parallel with first variable resistance circuit with the second adjustable resistance circuit.
9. equipment according to claim 1, which is characterized in that the environment temperature monitoring modular includes temperature sensor
Or thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988917.5A CN108931954A (en) | 2018-08-28 | 2018-08-28 | Temperature signals simulation output equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988917.5A CN108931954A (en) | 2018-08-28 | 2018-08-28 | Temperature signals simulation output equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108931954A true CN108931954A (en) | 2018-12-04 |
Family
ID=64443254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810988917.5A Pending CN108931954A (en) | 2018-08-28 | 2018-08-28 | Temperature signals simulation output equipment |
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|---|---|---|---|---|
| CN1323389A (en) * | 1998-10-19 | 2001-11-21 | 罗斯蒙德公司 | Auto correcting temperature transmitter with resistance based sensor |
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| CN205263587U (en) * | 2016-01-05 | 2016-05-25 | 魏德米勒电联接（上海）有限公司 | Take analog output circuit of self calibration function |
| CN106033651A (en) * | 2014-12-09 | 2016-10-19 | 北京航空航天大学 | Device for simulating human body skin temperature regulation and perspiration |
| CN207601618U (en) * | 2017-11-03 | 2018-07-10 | 定州新能源汽车有限公司 | A kind of controllable temperature simulation output circuit |
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-
2018
- 2018-08-28 CN CN201810988917.5A patent/CN108931954A/en active Pending
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