CN108158593B - Power management equipment and power management method for dynamic blood glucose meter - Google Patents
Power management equipment and power management method for dynamic blood glucose meter Download PDFInfo
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- CN108158593B CN108158593B CN201711432411.8A CN201711432411A CN108158593B CN 108158593 B CN108158593 B CN 108158593B CN 201711432411 A CN201711432411 A CN 201711432411A CN 108158593 B CN108158593 B CN 108158593B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
Abstract
The application discloses power management equipment of developments blood glucose meter, including analog switch, DC power supply and the pin that charges, wherein: the direct current power supply is connected with the input end of the analog switch; the output positive pole of the charging pin is respectively connected with the direct-current power supply and the input end of the analog switch, and the output negative pole of the charging pin is connected with the output end of the analog switch; the grounding end of the analog switch is grounded, and the analog switch is in an open circuit state when in high level and is in a closed circuit state when in low level. The application provides a power management equipment of developments blood glucose meter can realize the power short circuit with developments blood glucose meter when charging circuit disconnection through analog switch for developments blood glucose meter automatically gets into the low-power consumption state, does not need the artificial power short circuit with developments blood glucose meter, and then has improved the life of developments blood glucose meter. The application also provides a power management method of the dynamic blood glucose meter and the dynamic blood glucose meter, and the dynamic blood glucose meter has the beneficial effects.
Description
Technical Field
The application relates to the field of medical instruments, in particular to a power management device and a power management method of a dynamic blood glucose meter and the dynamic blood glucose meter.
Background
With the increasing pace of life and neglect of physical exercise of people, diabetes is becoming one of the major diseases threatening human health, and correspondingly, blood glucose monitoring is becoming an increasingly indispensable clinical means. The prior art has a dynamic blood glucose meter capable of measuring blood glucose, which needs to convert a detected glucose concentration signal into display information through a circuit system, and then the display information is displayed through a display component.
However, due to the inherent characteristics of the existing dynamic blood glucose meter product, when the charging circuit of the dynamic blood glucose meter is disconnected (for example, the charging wire is unplugged after charging is completed), the dynamic blood glucose meter can be in a working state immediately, and the dynamic blood glucose meter can be in a low power consumption state only by manually shorting the power supply. Therefore, when a user disconnects the charging circuit of the dynamic blood glucose meter and forgets to short-circuit the power supply, the dynamic blood glucose meter is always in a working state, and the service life of the power supply is influenced.
Therefore, how to enable the dynamic blood glucose meter to automatically enter a low power consumption state when the charging circuit is disconnected is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The power management device can enable the dynamic blood glucose meter to automatically enter a low power consumption state when a charging circuit is disconnected.
In order to solve the above technical problem, the present application provides a power management device of a dynamic blood glucose meter, which includes an analog switch, a dc power supply and a charging pin, wherein:
the direct current power supply is connected with the input end of the analog switch;
the output positive pole of the charging pin is respectively connected with the direct-current power supply and the input end of the analog switch, and the output negative pole of the charging pin is connected with the output end of the analog switch;
the grounding end of the analog switch is grounded, when the two ends of the analog switch are at high level, the analog switch is in an open-circuit state, and when the two ends of the analog switch are at low level, the analog switch is in an open-circuit state.
Optionally, the analog switch is embodied as a chip having an enable terminal active at a low level.
Optionally, the analog switch is specifically an electromagnetic relay.
Optionally, the circuit further includes a first resistor, a second resistor, a third resistor, a voltage comparator, an indicator light, and a fourth resistor, wherein:
the first end of the first resistor is respectively connected with the output cathode of the charging pin and the output end of the analog switch, and the second end of the first resistor is grounded;
the first end of the second resistor is respectively connected with the output anode of the charging pin and the direct-current power supply, the second end of the second resistor is connected with the first end of the third resistor, and the second end of the third resistor is grounded;
the positive input end of the voltage comparator is connected with the first end of the first resistor, the output negative electrode of the charging pin and the output end of the analog switch respectively, the negative input end of the voltage comparator is connected with the second end of the second resistor and the first end of the third resistor respectively, and the output end of the voltage comparator is connected with the input end of the indicator light;
the output end of the indicator light is connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded.
Optionally, the indicator light is specifically a light emitting diode.
Optionally, the dc power supply is specifically an ac-to-dc power supply module.
Optionally, the dc power supply is a storage battery.
The present application further provides a power management method for a dynamic blood glucose meter, based on any one of the above power management devices for a dynamic blood glucose meter, the method including:
when the dynamic blood glucose meter is connected to a charging pin of the power management equipment, the analog switch of the power management equipment judges whether the voltage at two ends of the analog switch is high level;
if yes, the analog switch is in an open circuit state, and a direct-current power supply of the power supply management equipment charges the dynamic blood glucose meter;
if not, the analog switch is in a pass state, and the dynamic blood glucose meter is in a short-circuit state.
Optionally, the charging of the dynamic blood glucose meter by the dc power supply of the power management device includes:
the voltage comparator judges the magnitude of the voltage of the positive input end and the voltage of the negative input end;
if the voltage of the positive input end is greater than the voltage of the negative input end, the output end of the voltage comparator outputs voltage, and the indicator lamp emits light;
if the voltage of the positive input end is less than the voltage of the negative input end, the output end of the voltage comparator does not output voltage, and the indicator lamp does not emit light.
The present application further provides a dynamic blood glucose meter comprising a power management device as described in any of the above.
The application provides a power management equipment of developments blood glucose meter, including analog switch, DC power supply and the pin that charges, wherein: the direct current power supply is connected with the input end of the analog switch; the output positive pole of the charging pin is respectively connected with the direct-current power supply and the input end of the analog switch, and the output negative pole of the charging pin is connected with the output end of the analog switch; the grounding end of the analog switch is grounded, when the two ends of the analog switch are at a high level, the analog switch is in an open circuit state, and when the two ends of the analog switch are at a low level, the analog switch is in an open circuit state.
According to the power management device of the dynamic blood glucose meter, when the power management device provided by the application is used for charging the dynamic blood glucose meter, the output positive electrode of the charging pin is connected with the power positive electrode of the dynamic blood glucose meter, the output negative electrode of the charging pin is connected with the power negative electrode of the dynamic blood glucose meter, the voltage loaded at the two ends of the analog switch is the voltage of a direct-current power supply of the power management device, the two ends of the analog switch are high levels, the analog switch is in an open circuit state at the moment, the output positive electrode is not communicated with the output negative electrode, the power supply of the dynamic blood glucose meter is not in a short circuit state, and the power management device charges the dynamic blood glucose meter; when the charging circuit is disconnected, namely when the direct-current power supply is not connected into the circuit, the voltage loaded at the two ends of the analog switch is changed into the power supply voltage of the dynamic blood glucose meter after being processed by the voltage transformation circuit, the two ends of the analog switch are at low levels, and the analog switch is in an on-state at the moment, so that the two ends of the power supply of the dynamic blood glucose meter are in short circuit, and the dynamic blood glucose meter enters a low power consumption state. The application also provides a power management method of the dynamic blood glucose meter and the dynamic blood glucose meter, which have the beneficial effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power management device of a dynamic blood glucose meter according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another embodiment of a power management device for a dynamic blood glucose meter;
fig. 3 is a flowchart of a power management method of a dynamic blood glucose meter according to an embodiment of the present disclosure.
Detailed Description
The core of the application is to provide a power management device, a power management method and a dynamic blood glucose meter of the dynamic blood glucose meter, wherein the power management device can enable the dynamic blood glucose meter to automatically enter a low-power consumption state when a charging circuit is disconnected.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a power management device of a dynamic blood glucose meter according to an embodiment of the present disclosure.
As shown in fig. 1, the power management device may include an analog switch U1, a dc power VCC, and a charging pin, wherein:
the direct-current power supply VCC is connected with the input end of the analog switch U1; an output positive electrode T2 of the charging pin is respectively connected with a direct-current power supply VCC and an input end of an analog switch U1, and an output negative electrode T1 of the charging pin is connected with an output end of the analog switch U1; the ground terminal of the analog switch U1 is grounded, and when the two terminals of the analog switch U1 are at a high level, the analog switch U1 is in an open circuit state, and when the two terminals of the analog switch U1 are at a low level, the analog switch U1 is in a closed circuit state;
due to the inherent characteristics of the existing dynamic blood glucose meter product, when a charging circuit of the dynamic blood glucose meter is disconnected (if the charging wire is pulled out after charging is finished), the dynamic blood glucose meter can be in a working state immediately, and can enter a low power consumption state only by manually short-circuiting a power supply, so that when a user disconnects the charging circuit of the dynamic blood glucose meter and forgets to short-circuit the power supply, the dynamic blood glucose meter can be in the working state all the time, and the service life of the power supply is influenced; based on the above, the application provides a power management device of a dynamic blood glucose meter, which can enable the dynamic blood glucose meter to automatically enter a low power consumption state when a charging circuit is disconnected;
optionally, the analog switch U1 mentioned herein may have various implementation manners, for example, the analog switch U1 may be an electromagnetic relay, and may also be a chip having an enable end that is active at a low level, which is only two preferred implementation manners of the analog switch U1 provided by the present application, as long as the analog switch U1 is capable of implementing an off state at a high level and an on state at a low level, and the present application does not specifically limit the implementation manner of the analog switch U1;
optionally, based on the fact that 220V ac power in the prior art is used as household power, in order to further improve user experience, the dc power VCC mentioned here may specifically be an ac-to-dc power module;
optionally, in order to facilitate a user to charge the dynamic blood glucose meter, the dc power VCC mentioned herein may specifically be a storage battery, that is, the power management device provided in the present application is a "dedicated charger" of the dynamic blood glucose meter;
when the power management device provided by the application is used for charging the dynamic blood glucose meter, the output positive electrode T2 and the output negative electrode T1 of the charging pin are connected with the power supply of the dynamic blood glucose meter through the voltage transformation circuit of the dynamic blood glucose meter, when the voltage loaded at two ends of the analog switch U1 is the voltage of the direct current power supply VCC of the power management device, two ends of the analog switch U1 are at high level, at the moment, the analog switch U1 is in an open circuit state, the output positive electrode T2 is not communicated with the output negative electrode T1, so that the power supply of the dynamic blood glucose meter is not in a short circuit state, and the power management device charges the dynamic blood glucose meter; when the charging circuit is disconnected, namely the direct-current power supply VCC is not connected into the circuit, the voltage loaded at two ends of the analog switch U1 is changed into the power supply voltage of the dynamic blood glucose meter processed by the voltage transformation circuit, two ends of the analog switch U1 are at low levels, and the analog switch U1 is in an on-state at the moment, so that two ends of the power supply of the dynamic blood glucose meter are in short circuit, the dynamic blood glucose meter enters a low power consumption state, and the dynamic blood glucose meter automatically enters the low power consumption state without manually short-circuiting the power supply when the charging circuit is disconnected;
in general, the supply voltage of the dynamic blood glucose meter processed by the transforming circuit is about 0.7V, while for the analog switch U1, the voltage of 1.65V or more belongs to the high level, the voltage of 1.65V or less belongs to the low level, and the voltage supplied by the dc power source VCC is higher than 1.65V by default and is the high voltage, so when the voltage at both ends of the analog switch U1 is changed from the voltage of the dc power source VCC to the supply voltage of the dynamic blood glucose meter processed by the transforming circuit, the analog switch U1 can be changed from the open circuit state to the closed circuit state.
Based on above-mentioned technical scheme, the power management equipment of developments blood glucose meter that this application provided can realize the power short circuit with developments blood glucose meter when charging circuit disconnection through analog switch for developments blood glucose meter automatically gets into the low-power consumption state, does not need artificially to short circuit the power of developments blood glucose meter, has avoided appearing when the user forgets the condition that developments blood glucose meter is in operating condition always when making the power short circuit, and then has improved the life of developments blood glucose meter.
Based on the above embodiments, the analog switch U1 can be implemented in various ways, and here, the analog switch U1 is taken as an example of a chip having an enable terminal active low, please refer to fig. 2, and fig. 2 is a schematic structural diagram of another power management device of a dynamic blood glucose meter provided in an embodiment of the present application.
As shown in fig. 2, the power management device may further include a first resistor R1, a second resistor R2, a third resistor R3, a voltage comparator U2, an indicator light L1, and a fourth resistor R4, wherein:
a first end of the first resistor R1 is respectively connected with an output cathode T1 of the charging pin and an output end of the analog switch U1, and a second end of the first resistor R1 is grounded; a first end of the second resistor R2 is connected with the output anode T2 of the charging pin and the dc power VCC, respectively, a second end of the second resistor R2 is connected with a first end of the third resistor R3, and a second end of the third resistor R3 is grounded; the positive input end of a voltage comparator U2 is respectively connected with the first end of a first resistor R1, the output negative electrode T1 of a charging pin and the output end of an analog switch U1, the negative input end of the voltage comparator U2 is respectively connected with the second end of a second resistor R2 and the first end of a third resistor R3, and the output end of the voltage comparator U2 is connected with the input end of an indicator light L1; the output terminal of the indicator light L1 is connected to the first terminal of the fourth resistor R4, and the second terminal of the fourth resistor R4 is grounded.
When the power management device provided in the embodiment of the present application is used to charge a dynamic blood glucose meter, if the charging current is I1, the voltage V + at the positive input terminal of the voltage comparator U2 is I1 × R1, and the voltage at the negative input terminal is I1
When in use
That is, V + is greater than V-, the output terminal of the voltage comparator U2 outputs voltage to make the indicator light L1 illuminate, and the charging current I1 will decrease slowly with the increase of the power in the power supply of the dynamic blood glucose meter, when the voltage is greater than V +
When the voltage is less than V < + >, the output end of the voltage comparator U2 does not output voltage, so that the indicator light L1 does not emit light, and the dynamic blood glucose meter is charged completely;
it should be noted that, the values of the dc power VCC, the first resistor R1, the third resistor R3, and the fourth resistor R4 may be controlled by a user, that is, the user may adjust the values by adjusting
To change the current value at the time of completion of charging;
alternatively, the indicator light L1 may be a light emitting diode;
when the dynamic blood glucose meter is in a charging state, the output positive electrode T2 of the charging pin is connected with the power supply positive electrode of the dynamic blood glucose meter, the output negative electrode T1 is connected with the power supply negative electrode of the dynamic blood glucose meter, the voltage loaded at two ends of the analog switch U1 is the voltage of a direct current power supply VCC of the power supply management equipment, two ends of the analog switch U1 are in a high level, the enable pin ENB of the analog switch U1 is conducted with the pin A2 at the moment, the output positive electrode T2 of the charging pin is not communicated with the output negative electrode T1, so that the power supply of the dynamic blood glucose meter is not in a short circuit state, and the power supply management equipment charges the dynamic blood glucose meter; when the charging circuit is disconnected, namely the direct-current power supply VCC is not connected into the circuit, the voltage loaded at two ends of the analog switch U1 is changed into the power supply voltage of the dynamic blood glucose meter processed by the voltage transformation circuit, two ends of the analog switch U1 are at low level, the enable pin ENB of the analog switch U1 is conducted with the pin A1, the output anode T2 of the charging pin is communicated with the output cathode T1, so that two ends of the power supply of the dynamic blood glucose meter are in short circuit, the dynamic blood glucose meter enters a low power consumption state, and the dynamic blood glucose meter automatically enters the low power consumption state without being manually short-circuited when the charging circuit is disconnected.
Based on the technical scheme, the power management device of another dynamic blood glucose meter provided by the embodiment of the application can display the charging state of the dynamic blood glucose meter through the voltage comparator, when the dynamic blood glucose meter is in the charging state, the indicator light L1 emits light, and when the dynamic blood glucose meter is charged, the indicator light L1 is turned off, so that the effect of reminding a user is achieved; meanwhile, the power supply of the dynamic blood glucose meter is short-circuited when the charging circuit is disconnected through the analog switch, so that the dynamic blood glucose meter automatically enters a low-power consumption state, the power supply of the dynamic blood glucose meter is not required to be short-circuited manually, the situation that the dynamic blood glucose meter is always in a working state when a user forgets to make the power supply short-circuited is avoided, and the service life of the dynamic blood glucose meter is further prolonged.
Based on the foregoing embodiments, an embodiment of the present application further provides a power management method for a dynamic blood glucose meter, please refer to fig. 3, and fig. 3 is a flowchart of the power management method for the dynamic blood glucose meter provided in the embodiment of the present application.
The method specifically comprises the following steps:
s101: the dynamic blood glucose meter is connected with a charging pin of the power management equipment;
s102: judging whether the voltage at two ends of the analog switch is a high level by the analog switch of the power management equipment;
if yes, go to step S103; if not, the process proceeds to step S104.
S103: the analog switch is in an open circuit state, and the direct current power supply of the power supply management equipment charges the dynamic blood glucose meter;
optionally, after the dc power supply of the power management device charges the dynamic blood glucose meter, the method may further include:
the voltage comparator judges the magnitude of the voltage of the positive input end and the voltage of the negative input end;
if the voltage of the positive input end is greater than the voltage of the negative input end, the output end of the voltage comparator outputs voltage, and the indicator light emits light;
if the voltage of the positive input end is less than the voltage of the negative input end, the output end of the voltage comparator does not output voltage, and the indicator light does not emit light.
S104: the analog switch is in a closed state, and the dynamic blood glucose meter is in a short-circuit state.
Based on the technical scheme, the power management method of the dynamic blood glucose meter can realize short circuit of the power of the dynamic blood glucose meter when the charging circuit is disconnected through the analog switch, so that the dynamic blood glucose meter automatically enters a low power consumption state, the power of the dynamic blood glucose meter does not need to be short-circuited manually, the situation that the dynamic blood glucose meter is always in a working state when a user forgets to make the power short-circuited is avoided, and the service life of the dynamic blood glucose meter is further prolonged.
Based on the foregoing embodiments, an embodiment of the present application further provides a dynamic blood glucose meter, which includes the power management device according to any one of the foregoing embodiments;
optionally, a reset circuit and a voltage transformation circuit can be arranged in the dynamic blood glucose meter, so that the power supply of the dynamic blood glucose meter is connected with the charging pin of the power management device through the reset circuit and the voltage transformation circuit of the dynamic blood glucose meter, and the implementation is realized as follows:
when the voltage at the two ends of the analog switch U1 is changed from the voltage of the direct-current power supply VCC to the power supply voltage of the dynamic blood glucose meter processed by the voltage transformation circuit, the analog switch U1 is changed from an open circuit state to a closed circuit state;
when the dynamic blood glucose meter is taken down from the power management equipment, the charging pin is disconnected with the dynamic blood glucose meter, the reset circuit in the dynamic blood glucose meter enables the working circuit of the dynamic blood glucose meter to be connected, namely, the dynamic blood glucose meter enters a working state from a low power consumption state, therefore, when a user needs to use the dynamic blood glucose meter, the user only needs to take down the dynamic blood glucose meter from the power management equipment, and the dynamic blood glucose meter starts to work.
Since the embodiments of the remaining portion of the dynamic blood glucose meter correspond to the embodiments of the power management device portion, please refer to the description of the embodiments of the power management device portion for the embodiments of the remaining portion of the dynamic blood glucose meter, which is not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The power management device, the power management method and the dynamic blood glucose meter provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. The utility model provides a power management equipment of developments blood glucose meter which characterized in that, includes analog switch, DC power supply and the pin that charges, wherein:
the direct current power supply is connected with the input end of the analog switch;
the output positive pole of the charging pin is respectively connected with the direct-current power supply and the input end of the analog switch, and the output negative pole of the charging pin is connected with the output end of the analog switch;
the grounding end of the analog switch is grounded, when the two ends of the analog switch are at a high level, the analog switch is in an open circuit state, and when the two ends of the analog switch are at a low level, the analog switch is in an open circuit state;
the analog switch is a chip or an electromagnetic relay with an effective enable end with low level.
2. The power management device of claim 1, further comprising a first resistor, a second resistor, a third resistor, a voltage comparator, an indicator light, and a fourth resistor, wherein:
the first end of the first resistor is respectively connected with the output cathode of the charging pin and the output end of the analog switch, and the second end of the first resistor is grounded;
the first end of the second resistor is respectively connected with the output anode of the charging pin and the direct-current power supply, the second end of the second resistor is connected with the first end of the third resistor, and the second end of the third resistor is grounded;
the positive input end of the voltage comparator is connected with the first end of the first resistor, the output negative electrode of the charging pin and the output end of the analog switch respectively, the negative input end of the voltage comparator is connected with the second end of the second resistor and the first end of the third resistor respectively, and the output end of the voltage comparator is connected with the input end of the indicator light;
the output end of the indicator light is connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded.
3. The power management device of claim 2, wherein the indicator light is embodied as a light emitting diode.
4. The power management device according to claim 1, wherein the dc power supply is specifically an ac-to-dc power supply module.
5. The power management device according to claim 1, wherein the dc power supply is in particular a battery.
6. A power management method for a dynamic blood glucose meter, based on the power management device of claims 1-3, the method comprising:
when the dynamic blood glucose meter is connected to a charging pin of the power management equipment, the analog switch of the power management equipment judges whether the voltage at two ends of the analog switch is high level;
if yes, the analog switch is in an open circuit state, and a direct-current power supply of the power supply management equipment charges the dynamic blood glucose meter;
if not, the analog switch is in a pass state, and the dynamic blood glucose meter is in a short-circuit state.
7. The power management method of claim 6, further comprising, after the dc power source of the power management device charges the dynamic blood glucose meter:
the voltage comparator judges the magnitude of the voltage of the positive input end and the voltage of the negative input end;
if the voltage of the positive input end is greater than the voltage of the negative input end, the output end of the voltage comparator outputs voltage, and the indicator lamp emits light;
if the voltage of the positive input end is less than the voltage of the negative input end, the output end of the voltage comparator does not output voltage, and the indicator lamp does not emit light.
8. A dynamic blood glucose meter comprising a power management device of the dynamic blood glucose meter of any one of claims 1-3.
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| CN103425235A (en) * | 2013-08-13 | 2013-12-04 | 佛山市顺德万和电气配件有限公司 | Single chip microcomputer low power consumption standby circuit and control method |
| CN204229341U (en) * | 2014-11-26 | 2015-03-25 | 珠海迈科智能科技股份有限公司 | Processor state conversion equipment and portable power source |
| CN204333900U (en) * | 2014-12-26 | 2015-05-13 | 广东美的制冷设备有限公司 | Low-power consumption standby protective circuit and air conditioner |
| CN204993284U (en) * | 2015-08-10 | 2016-01-20 | 三诺生物传感股份有限公司 | Blood glucose meter resetting means |
| CN206099405U (en) * | 2016-08-31 | 2017-04-12 | 郑州众智科技股份有限公司 | Battery floating charge indicator lamp circuit |
| CN206211600U (en) * | 2016-11-25 | 2017-05-31 | 深圳市景创科技电子有限公司 | Charging indication and charging device |
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2017
- 2017-12-26 CN CN201711432411.8A patent/CN108158593B/en active Active
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