CN205126227U - A auto awake -up device for electrocardio equipment - Google Patents
A auto awake -up device for electrocardio equipment Download PDFInfo
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- CN205126227U CN205126227U CN201520881405.0U CN201520881405U CN205126227U CN 205126227 U CN205126227 U CN 205126227U CN 201520881405 U CN201520881405 U CN 201520881405U CN 205126227 U CN205126227 U CN 205126227U
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Abstract
An embodiment of the utility model provides an auto awake -up device for electrocardio equipment, electrocardio equipment includes heart electrical signal input end and power manager, the device includes: voltage observation circuit and voltage comparison circuit, wherein, the voltage observation circuit with heart electrical signal input end links to each other, the monitoring the voltage signal of heart electrical signal input end, voltage comparison circuit's input with the output of voltage observation circuit links to each other, voltage comparison circuit's output with the messenger of power manager can hold continuously, reaches the messenger as the voltage signal who monitors and generates can the threshold value time and awaken the signal up and make the ability power manager export power supply voltage. The utility model discloses an embodiment an auto awake -up device for electrocardio equipment can auto awake -up electrocardio equipment for operate simplyr, convenient, and circuit structure is simple, with low costs, the low power dissipation.
Description
Technical field
This utility model relates to technical field of integrated circuits, particularly relates to a kind of automatic waking device for electrocardio equipment.
Background technology
Along with the development of ECG Technique and intelligent mobile terminal technology, portable cardiac equipment generally enters in daily life, achieves combining closely of electrocardio equipment and mobile terminal, is convenient to user Real-Time Monitoring, and conveniently checks monitoring result.
Usually, the portable cardiac equipment of prior art has on and off switch.User need press on and off switch, electrocardio device power-up, and when its both hands contact with metal electrode film, or when electrocardio electrode plate being affixed on health relevant position, electrocardio equipment just starts to monitor electrocardiosignal.The weak point of aforesaid way is complex operation.Such as, when old man is for use electrocardio monitoring of equipment health, using can be very inconvenient.
Utility model content
The object of this utility model embodiment is to provide a kind of automatic waking device for electrocardio equipment, to realize automatically waking electrocardio equipment up, makes operation simpler, convenient.
For achieving the above object, embodiment of the present utility model provides a kind of automatic waking device for electrocardio equipment, described electrocardio equipment comprises electrocardiosignal input and power supervisor, described device comprises: electric voltage observation circuit and voltage comparator circuit, wherein, described electric voltage observation circuit is connected with described electrocardiosignal input, monitors the voltage signal of described electrocardiosignal input; The input of described voltage comparator circuit is connected with the outfan of described electric voltage observation circuit, the outfan of described voltage comparator circuit is connected with the Enable Pin of described power supervisor, generates the enable described power supervisor output supply voltage of wake-up signal when the voltage signal monitored reaches enable threshold value.
Preferably, described electrocardiosignal input comprises: right limb electricity level RA signal input part and left limb electricity level LA signal input part;
Described electric voltage observation circuit comprises: the first resistance and the second resistance, one end of described first resistance is connected with supply voltage, the other end of described first resistance is connected with described right limb electricity level RA signal input part, one end of described second resistance is connected with described left limb electricity level LA signal input part, the other end ground connection of described second resistance.
Preferably, described voltage comparator circuit comprises: voltage comparator, the first divider resistance and the second divider resistance;
One end of described first divider resistance is connected with supply voltage, and the other end of described first divider resistance is connected with one end of described second divider resistance and described voltage comparator respectively, the other end ground connection of described second divider resistance.
Preferably, described device also comprises: voltage follower, is series between described electric voltage observation circuit and described voltage comparator circuit.
Preferably, the resistance of described first resistance and described second resistance is equal, and is greater than 5.1M Ω.
The automatic waking device for electrocardio equipment that this utility model embodiment provides, by the voltage signal of the electrocardiosignal input of electric voltage observation circuit monitoring electrocardio equipment, further voltage comparator circuit judges whether the voltage signal monitored reaches enable threshold value, wake-up signal is generated when reaching enable threshold value, the power supervisor output supply voltage of enable electrocardio equipment, thus realize automatically waking electrocardio equipment up, make operation simpler and more direct.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automatic waking device for electrocardio equipment of this utility model embodiment one;
Fig. 2 is the structural representation of the automatic waking device for electrocardio equipment of this utility model embodiment two;
Fig. 3 is the application scenarios schematic diagram of the automatic waking device for electrocardio equipment of this utility model embodiment two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the automatic waking device that this utility model embodiment is used for electrocardio equipment is described in detail.
Embodiment one
Fig. 1 is the structural representation of the automatic waking device for electrocardio equipment of this utility model embodiment one, with reference to Fig. 1, electrocardio equipment comprises electrocardiosignal input and power supervisor, automatic waking device for electrocardio equipment comprises: electric voltage observation circuit 110 and voltage comparator circuit 120, wherein, electric voltage observation circuit 110 is connected with electrocardiosignal input, the voltage signal of monitoring electrocardiosignal input; The input of voltage comparator circuit 120 is connected with the outfan of electric voltage observation circuit 110, the outfan of voltage comparator circuit 120 is connected with the Enable Pin of power supervisor, wake-up signal is generated, enable power supervisor output supply voltage when the voltage signal monitored reaches enable threshold value.
In concrete implementation, electric voltage observation circuit 110 monitors the output voltage of the electrocardiosignal input of electrocardio equipment, after voltage comparator circuit 120 receives the output voltage monitored, itself and the voltage threshold pre-set are compared, if output voltage is less than default voltage threshold, then generate wake-up signal.Otherwise, if output voltage is greater than default voltage threshold, do not generate wake-up signal.
The automatic waking device for electrocardio equipment of this utility model embodiment, by the electric voltage observation circuit of the voltage signal of the electrocardiosignal input of electrocardio equipment can be monitored, the voltage signal monitored and enable threshold value are compared by voltage comparator circuit, wake-up signal is generated when voltage signal reaches enable threshold value, enable power supervisor output supply voltage, thus realize automatically waking electrocardio equipment up, make operation simpler and more direct, dramatically for user brings better experience.
Embodiment two
Fig. 2 is the structural representation of the automatic waking device of the electrocardio equipment of this utility model embodiment two.Can be considered a kind of specific implementation of Fig. 1 shown device embodiment.With reference to Fig. 2, compare apparatus structure embodiment illustrated in fig. 1, in Fig. 2, particularly illustrate the specific implementation of electric voltage observation circuit, and the specific implementation of voltage comparator circuit; Voltage follower is increased between voltage detecting circuit and voltage comparator circuit.With reference to Fig. 2, the automatic waking device of described electrocardio equipment comprises: the first resistance 210, second resistance 220, voltage comparator 230, first divider resistance 240, second divider resistance 250 and voltage follower 260.
For the electric voltage observation circuit 110 in embodiment one and voltage comparator circuit 120, the present embodiment respectively illustrates concrete circuit structure.With reference to Fig. 2, it should be noted that, electrocardiosignal input comprises RA signal input part and LA signal input part.Described electric voltage observation circuit 110 can comprise: the first resistance 210 and the second resistance 220, one end of first resistance 210 is connected with supply voltage VCC, the other end of the first resistance 210 is connected with RA signal input part, one end of second resistance 220 is connected with LA signal input part, the other end ground connection of the second resistance 220.
Here, the first resistance is equivalent to a pull-up resistor, and the second resistance is equivalent to a pull down resistor.The resistance of the first resistance and the second resistance is equal, and is greater than 5.1M Ω.Once explain said in circuit " pull-up " and " drop-down " below, " pull-up " is exactly that signal is passed through a resistance clamper at high level, and resistance plays metering function simultaneously.In like manner, " drop-down " is exactly that signal is passed through a resistance clamper in low level.Corresponding to the present embodiment, be namely that RA signal input part is met VCC by the first resistance, by LA signal input part by the second resistance eutral grounding.
Described voltage comparator circuit 120 can comprise: voltage comparator 230, first divider resistance 240 and the second divider resistance 250, one end of described first divider resistance 240 is connected with supply voltage VCC, the other end of described first divider resistance 240 is connected with one end of described second divider resistance 250 and described voltage comparator 230 respectively, the other end ground connection of described second divider resistance 250.In concrete implementation, the TS881 chip of the usual optional use of voltage comparator 230 such as ST company, the MAX9060 chip etc. of MAXIM company, the operating current representative value of these chips is about 1uA, and specifically according to the difference of chip manufacturer, the operating current of chip is different.
Here, the voltage threshold of voltage comparator circuit 120 can be set by the first divider resistance 240 and the second divider resistance 250.Be described in detail below in conjunction with Fig. 2, be the input of voltage comparator circuit 120 with reference to Fig. 2, Vin, Vout is the output of voltage comparator circuit 120.Voltage follower 270 is connected with the inverting input IN-of voltage comparator chip, the voltage Vref of the normal phase input end IN+ of voltage comparator chip adjusts by the first divider resistance 240 and the second divider resistance 250, suppose that the first divider resistance 240 is R1, second divider resistance 250 is R2, so Vref=R2/ (R1+R2).In order to ensure that circuit power consumption is lower, the value of R1, R2 is generally taken at more than 2M Ω.If the voltage threshold that voltage comparator circuit is preset is the desirable 10M Ω of about 2/3Vcc, R1 desirable 5.1M Ω, R2.
Power supervisor is connected with voltage comparator circuit 120, for after receiving wake-up signal for electrocardio equipment is powered.In actual applications, power supervisor is electrically connected with the output end vo ut of voltage comparator 230, and after receiving the high level of voltage comparator 230 output, in electrocardio equipment, various piece is powered, electrocardio equipment can start the electrocardiosignal gathering user.
Voltage follower 260 is series between electric voltage observation circuit 110 and voltage comparator circuit 120.Particularly, the input of voltage follower 260 is electrically connected with one end of the first resistance 210, and its outfan is electrically connected with the input of voltage comparator 230.
Below in conjunction with concrete example, carry out further the embody rule of illustratively this utility model embodiment more intuitively.
Fig. 3 is the application scenarios schematic diagram of the automatic waking device of the electrocardio equipment of this utility model embodiment two, with reference to Fig. 3, after the both hands of user contact (or electrocardio electrode plate is attached on the body of user) with metal electrode film 320, be equivalent to the circuit of RA signal input part in Fig. 2 and the line conduction of LA signal input part, in Fig. 2, the voltage at the O point place of arrow points can drop to about 0.5VCC, with voltage comparator circuit preset voltage threshold be that 2/3VCC compares, the voltage at O point place is less than default voltage threshold, voltage comparator circuit will export high level (as wake-up signal), power supervisor receives high level, thus output supply voltage is to other energize portions of electrocardio equipment 310.Achieve the electrocardiosignal that electrocardio equipment Auto Power On gathers user.
In addition, if the both hands of user do not contact with metal electrode film, in Fig. 2, the voltage at the O point place of arrow points is pulled to VCC, with voltage comparator circuit preset voltage threshold be that 2/3VCC compares, the voltage at O point place is greater than default voltage threshold, voltage comparator circuit will output low level, and namely do not produce wake-up signal, power management chip receives low level and do not power to electrocardio equipment.
The automatic waking device for electrocardio equipment of this utility model embodiment, on basis embodiment illustrated in fig. 1, there is following technique effect: on the one hand, realize the monitoring to the output voltage of electrocardiosignal input by pull-up resistor and pull down resistor, there is simple, the lower-cost advantage of circuit structure; On the other hand, the voltage comparator choosing low-power consumption, to build voltage comparator circuit, makes the automatic waking device for electrocardio equipment have lower power consumption.In addition, in order to ensure the input impedance of electrocardiosignal input, and reducing the impact of voltage comparator chip bias current, being connected with voltage comparator circuit by adding voltage follower.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (5)
1. the automatic waking device for electrocardio equipment, it is characterized in that, described electrocardio equipment comprises electrocardiosignal input and power supervisor, described device comprises: electric voltage observation circuit and voltage comparator circuit, wherein, described electric voltage observation circuit is connected with described electrocardiosignal input, monitors the voltage signal of described electrocardiosignal input; The input of described voltage comparator circuit is connected with the outfan of described electric voltage observation circuit, the outfan of described voltage comparator circuit is connected with the Enable Pin of described power supervisor, wake-up signal is generated, enable described power supervisor output supply voltage when the voltage signal monitored reaches enable threshold value.
2. automatic waking device according to claim 1, is characterized in that, described electrocardiosignal input comprises: right limb electricity level RA signal input part and left limb electricity level LA signal input part;
Described electric voltage observation circuit comprises: the first resistance and the second resistance, one end of described first resistance is connected with supply voltage, the other end of described first resistance is connected with described right limb electricity level RA signal input part, one end of described second resistance is connected with described left limb electricity level LA signal input part, the other end ground connection of described second resistance.
3. automatic waking device according to claim 1, is characterized in that, described voltage comparator circuit comprises: voltage comparator, the first divider resistance and the second divider resistance;
One end of described first divider resistance is connected with supply voltage, and the other end of described first divider resistance is connected with one end of described second divider resistance and described voltage comparator respectively, the other end ground connection of described second divider resistance.
4. automatic waking device according to claim 1, is characterized in that, described device also comprises: voltage follower, is series between described electric voltage observation circuit and described voltage comparator circuit.
5. automatic waking device according to claim 2, is characterized in that, the resistance of described first resistance and described second resistance is equal, and is greater than 5.1M Ω.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520881405.0U CN205126227U (en) | 2015-11-05 | 2015-11-05 | A auto awake -up device for electrocardio equipment |
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| CN201520881405.0U CN205126227U (en) | 2015-11-05 | 2015-11-05 | A auto awake -up device for electrocardio equipment |
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| CN205126227U true CN205126227U (en) | 2016-04-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106407048A (en) * | 2016-05-25 | 2017-02-15 | 清华大学 | Input/output communication interface and data backup and recovery method on basis of interface |
| CN107348959A (en) * | 2016-05-09 | 2017-11-17 | 上银科技股份有限公司 | Physiological signal sensing device and its operation method of start and shutdown |
| CN110226914A (en) * | 2018-03-05 | 2019-09-13 | 深圳市理邦精密仪器股份有限公司 | The automatic Activiation method and device of physiological parameter measuring device |
| CN112242051A (en) * | 2019-07-19 | 2021-01-19 | 江苏安惠医疗器械有限公司 | Sub-terminal machine, health device and control method of health device |
| US11539209B2 (en) | 2019-07-11 | 2022-12-27 | Beijing Boe Technology Development Co., Ltd. | Control circuit for wearable device, wearable device |
-
2015
- 2015-11-05 CN CN201520881405.0U patent/CN205126227U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348959A (en) * | 2016-05-09 | 2017-11-17 | 上银科技股份有限公司 | Physiological signal sensing device and its operation method of start and shutdown |
| CN107348959B (en) * | 2016-05-09 | 2020-10-09 | 上银科技股份有限公司 | Physiological signal sensing device and operation method for starting and stopping physiological signal sensing device |
| CN106407048A (en) * | 2016-05-25 | 2017-02-15 | 清华大学 | Input/output communication interface and data backup and recovery method on basis of interface |
| CN106407048B (en) * | 2016-05-25 | 2019-04-05 | 清华大学 | Input/output communication interface, the data backup and resume method based on the interface |
| CN110226914A (en) * | 2018-03-05 | 2019-09-13 | 深圳市理邦精密仪器股份有限公司 | The automatic Activiation method and device of physiological parameter measuring device |
| US11539209B2 (en) | 2019-07-11 | 2022-12-27 | Beijing Boe Technology Development Co., Ltd. | Control circuit for wearable device, wearable device |
| CN112242051A (en) * | 2019-07-19 | 2021-01-19 | 江苏安惠医疗器械有限公司 | Sub-terminal machine, health device and control method of health device |
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Effective date of registration: 20170524 Address after: Room A216-59, block B Qilu Software Building No. 1768 Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 Patentee after: Shandong caution Intelligent Technology Co., Ltd. Address before: 100176, Daxing District economic and Technological Development Zone, Beijing, Rong Jingdong street, No. 1, building 25, 3, 1, unit 2321 Patentee before: BEIJING ZHONGYUNZAIXIAN SCIENCE & TECHNOLOGY CO., LTD. |