CN114336811A - Circuit for reducing standby power consumption and intelligent injector - Google Patents

Abstract

The invention discloses a circuit for reducing standby power consumption and an intelligent injector, which comprise a power supply, working equipment, a first switch for switching on and off between the power supply and the working equipment according to a preset voltage signal and a second switch for providing the preset voltage signal to the first switch; the first switch comprises a first input end connected with a power supply, a second input end for receiving a preset voltage signal and an output end for outputting electric energy to the working equipment; the second input end is respectively connected with the working equipment and the second switch; the input end of the working equipment is connected with the output end of the first switch, and the output end of the working equipment is connected with the second input end of the first switch; the input end of the second switch is connected with the power supply, and the output end of the second switch is connected with the second input end of the first switch. The circuit for reducing the standby power consumption and the intelligent injector can greatly reduce the standby power consumption and save more energy.

Description

A circuit and intelligent injector for reducing standby power consumption

technical field

The invention relates to the field of medical equipment, in particular to a circuit and an intelligent injector for reducing standby power consumption.

Background technique

For diabetic patients, their blood sugar indicators are very important, and they need to be monitored and recorded regularly, and in order to reduce the fluctuation of patients' blood sugar indicators, they need to be controlled by drugs. Artificial insulin, a well-known blood sugar-lowering drug, must be administered parenterally to work in humans. Therefore, the most common way of administering artificial insulin to diabetic patients is by subcutaneous injection, and long-term timed injections are required. The dose that a diabetic patient needs to inject depends on his blood sugar index, which changes dynamically, and the correspondence between the blood sugar index and the injected dose is very strict.

In order to continuously and effectively monitor the injection dose, some manufacturers have developed smart injectors equipped with electronic components such as sensors to accurately monitor the injection dose. However, the electronic components of the smart injector consume a large amount of power in the standby state, which is not energy-efficient.

SUMMARY OF THE INVENTION

In view of this, the embodiment of the present invention expects to provide a circuit and an intelligent injector for reducing standby power consumption, which can greatly reduce standby power consumption and save energy.

In order to achieve the above object, in the first aspect, an embodiment of the present invention provides a circuit for reducing standby power consumption, the circuit includes:

power supply;

work equipment;

The first switch that switches on and off between the power supply and the working equipment according to the preset voltage signal;

providing a predetermined voltage signal to a second switch of the first switch;

The first switch includes a first input end connected to a power supply, a second input end receiving a preset voltage signal, and an output end outputting power to a working device; the second input end is respectively connected to the working device and the second input end. two switches;

The input end of the working device is connected to the output end of the first switch, and the output end of the working device is connected to the second input end of the first switch; when the working device is working, the second input end is used sending a preset voltage signal to the first switch;

The input end of the second switch is connected to the power supply, and the output end of the second switch is connected to the second input end of the first switch; when the second switch is closed, a pre-signal is sent through the second input end. Set a voltage signal to the first switch.

In the above solution, a first one-way conducting element is arranged between the output end of the working device and the second input end of the first switch.

In the above solution, a second one-way conducting element is arranged between the output end of the second switch and the second input end of the first switch.

In the above solution, the first switch is an analog switch.

In the above solution, the second switch is a push button switch.

In the above solution, the second switch is an acceleration sensing switch.

In the above solution, the second switch is a noise-sensing switch.

In the above solution, the first one-way conduction element and the second one-way conduction element are both diodes.

In the above solution, the working device further includes a monitoring input terminal for monitoring the state of the second switch. When the second switch is turned off, the working device starts timing, and when the timing reaches a preset value, the working device stops. Work.

In a second aspect, an embodiment of the present invention provides a smart injector, the smart injector includes a housing, an injection plunger, and a monitoring device for monitoring the movement of the injection plunger, the monitoring device includes any one of the above-mentioned reduced standby circuit that consumes power.

The circuit for reducing standby power consumption and the smart injector according to the embodiment of the present invention include a power supply, a working device, a first switch that switches on/off between the power supply and the working device according to a preset voltage signal, and a preset voltage signal is provided to the first switch. the second switch of the switch; the first switch includes a first input end connected to a power supply, a second input end receiving a preset voltage signal, and an output end outputting power to a working device; the second input ends are respectively connected to the a working device and the second switch; the input end of the working device is connected to the output end of the first switch, and the output end of the working device is connected to the second input end of the first switch; the second switch The input terminal of the second switch is connected to the power supply, and the output terminal of the second switch is connected to the second input terminal of the first switch. It can be seen that the circuit for reducing standby power consumption and the smart injector of the embodiment of the present invention maintain the connection between the power supply and the working device through the preset voltage signal sent by the working device during operation, otherwise the power supply and the working device are completely cut off, which can greatly reduce the standby power. consumption, more energy saving.

Other beneficial effects of the embodiments of the present invention will be further described in the specific embodiments in conjunction with specific technical solutions.

Description of drawings

FIG. 1 is a schematic structural principle diagram of a circuit for reducing standby power consumption according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a circuit for reducing standby power consumption according to an embodiment of the present invention.

Description of reference numbers:

11 power supply; 12 working equipment; 13 first switch; 14 second switch.

Detailed ways

Aiming at the technical problems existing in the prior art, an embodiment of the present invention provides a circuit for reducing standby power consumption, and the circuit includes:

power supply;

work equipment;

A first switch that switches on and off between the power supply and the working device according to a preset voltage signal; a second switch that provides a preset voltage signal to the first switch;

The first switch includes a first input end connected to a power supply, a second input end receiving a preset voltage signal, and an output end outputting power to a working device; the second input end is respectively connected to the working device and the second input end. two switches;

The input end of the working device is connected to the output end of the first switch, and the output end of the working device is connected to the second input end of the first switch; when the working device is working, the second input end is used sending a preset voltage signal to the first switch;

The input end of the second switch is connected to the power supply, and the output end of the second switch is connected to the second input end of the first switch; when the second switch is closed, a pre-signal is sent through the second input end. Set a voltage signal to the first switch.

The working equipment here can also be a working circuit, including a core working part and an auxiliary working part. The core working part generally stops running automatically after its own work is completed, but the auxiliary working part generally only has electricity and will continue to run. The main purpose of reducing standby power consumption in the embodiment of the present invention is to reduce the power consumption of auxiliary working components.

Here, the preset voltage signal is a current with a preset voltage value, and is a signal for maintaining the communication between the power supply and the working device. The preset voltage signal can be sent by the working device or by the second switch. The voltage value of the preset voltage signal can be set according to the voltage value of the output terminal of the working device.

The circuit for reducing standby power consumption and the smart injector of the embodiment of the present invention maintain the connection between the power supply and the working device through the preset voltage signal sent by the working device during operation, otherwise the power supply and the working device are completely cut off, which saves more energy.

Understandably, a first one-way conducting element is disposed between the output end of the working device and the second input end of the first switch. In this way, the direction of the current in the circuit can be maintained, which is a better implementation.

Understandably, a second one-way conducting element is disposed between the output end of the second switch and the second input end of the first switch. In this way, the direction of the current in the circuit can be maintained, which is a better implementation.

Understandably, the first switch is an analog switch. The analog switch is mainly to complete the signal switching function in the signal chain. The switch mode of the MOS tube is used to turn off or open the signal link; because its function is similar to a switch, it is realized by the characteristics of an analog device and becomes an analog switch. The analog switch mainly plays the role of turning on the signal or turning off the signal in the electronic equipment. Due to the characteristics of low power consumption, high speed, no mechanical contacts, small size and long service life, analog switches have been widely used in automatic control systems and computers. Therefore, it is a more preferable embodiment. It can be understood that the first switch may also be other on-off control elements, such as a controllable power converter and the like.

Understandably, the second switch is a push button switch. The button switch, also known as the control button (referred to as the button), is a low-voltage electrical appliance that is manually and generally reset automatically. Buttons are usually used to issue start or stop commands in circuits to control the on and off of electrical coil currents such as electromagnetic starters, contactors, and relays. That is, the push button switch is a normally open switch, which is closed when manually pressed, and disconnected when released, which is a better implementation without manual disconnection.

Understandably, the second switch is an acceleration sensing switch. In this way, the device where the circuit is located is automatically turned on when it is picked up, which is more intelligent and a better implementation.

Understandably, the second switch is a noise-sensing switch. In this way, it can be turned on by voice, which is more convenient and intelligent, and is a better implementation manner.

Understandably, both the first one-way conduction element and the second one-way conduction element are diodes. Diode is a widely used one-way conductive element, which is easy to obtain and has stable function, which is a better implementation.

It can be understood that the working device further includes a monitoring input terminal for monitoring the state of the second switch. When the second switch is turned off, the working device starts timing, and when the timing reaches a preset value, the working device stops. Work. In this way, the preset value of the timing can be preset, and the power consumption of the core working components can be further reduced on the basis of reducing the power consumption of the auxiliary working components, which is a better implementation manner.

An embodiment of the present invention further provides a smart injector, the smart injector includes a housing, an injection push rod, and a monitoring device for monitoring the movement of the injection push rod, the monitoring device includes any of the above-mentioned devices for reducing standby power consumption circuit.

For a clearer understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. Those of ordinary skill in the art, based on these embodiments, all other embodiments obtained under the premise of no creative work, all belong to the protection scope of the present invention.

Example 1

This embodiment provides a circuit for reducing standby power consumption. As shown in FIG. 1 , the circuit includes a power supply 11 , a working device 12 , a first switch 13 and a second switch 14 :

The power supply 11 is used to provide power to the entire circuit;

The working device 12 is a device in the circuit that provides work results to the outside world, and generally includes core components and auxiliary components; it may also be called a working circuit or a main circuit.

The first switch 13 is used to switch the on-off between the power supply 11 and the working device 12 according to the preset voltage signal;

the second switch 14 for providing a preset voltage signal to the first switch 13;

The first switch 13 includes a first input terminal connected to the power supply 11 , a second input terminal receiving a preset voltage signal, and an output terminal outputting power to the working equipment 12 ; the second input terminals are respectively connected to the working equipment 12 . and the second switch 14;

The input end of the working device 12 is connected to the output end of the first switch 13, and the output end of the working device 12 is connected to the second input end of the first switch 13; the second input terminal sends a preset voltage signal to the first switch 13;

The input end of the second switch 14 is connected to the power supply 11, and the output end of the second switch 14 is connected to the second input end of the first switch 13; when the second switch 14 is closed, the The two input terminals send a predetermined voltage signal to the first switch 13 .

In this embodiment, as shown in FIG. 2 , the power source 11 is a rechargeable battery.

In this embodiment, as shown in FIG. 2 , the working device 12 is a Microcontroller Unit (MCU, Microcontroller Unit). The output end of the MCU is a general purpose input/output (GPIO, General Purpose Input Output) interface. Further, the MCU shown is also provided with a radio frequency (RF, Radio Frequency Identification) for external wireless communication.

In this embodiment, a first one-way conducting element is disposed between the output end of the working device 12 and the second input end of the first switch 13 . In this way, the direction of current flow in the circuit can be maintained.

Similarly, a second one-way conducting element is disposed between the output end of the second switch 14 and the second input end of the first switch 13 .

Specifically, as shown in FIG. 2 , the first one-way conduction element and the second one-way conduction element are both diodes. More specifically, the diode is a Schottky diode, and the forward conduction threshold voltage and forward voltage drop of the Schottky diode are relatively low, about 0.2V, so that the signal from the working device 12 or other circuits is less attenuated , can effectively drive the analog switch.

In this embodiment, the first switch 13 is an analog switch. The second input terminal of the first switch 13 is turned on when a preset voltage signal is input, otherwise it is turned off. Specifically, the shown analog switch is a buck-boost power supply chip, so that it can not only be turned on and off according to the voltage signal, but also can be boosted or stepped down. The enabling pin of the buck-boost power supply chip is the second input end of the first switch, that is, the port for receiving the preset voltage signal.

In this embodiment, the second switch 14 is a button switch. That is, click to close, release to open.

In other embodiments, the second switch 14 may also be an acceleration sensing switch. In this way, the device where the circuit is located is automatically turned on when it is picked up, making it smarter to turn on. Specifically, the acceleration sensing switch may be an acceleration sensing chip. The acceleration sensor switch in the figure is represented by a dotted line, which means that it is in a replacement relationship with the solid line components.

In other embodiments, the second switch 14 may also be a noise-sensing switch. In this way, it can be turned on by voice, which is more convenient and smart to turn on. Specifically, the noise sensing switch may be a noise sensing chip. The noise-sensing switch in the figure is represented by a dotted line, which means that it is in a replacement relationship with the solid-line components. The ellipses (...) between the acceleration sensing switch and the noise sensing switch indicate that there may be other types of switches, which are not shown one by one.

In this embodiment, the working device 12 further includes a monitoring input terminal for monitoring the state of the second switch 14. When the second switch 14 is turned off, the working device 12 starts timing, and when the timing reaches a preset value, The core working part, the MCU, stops working. In this way, the preset value of the timing can be preset, and the power consumption of the core working components can be further reduced on the basis of reducing the power consumption of the auxiliary working components.

Specifically, in order to prevent the voltage at the output end of the second switch 14 from impacting the working device 12 , two voltage dividing resistors are arranged between the second switch 14 and the working device 12 . The voltage and condition of the working device 12 are set.

Embodiment 2

This embodiment provides a smart injector. The smart injector includes a housing, an injection push rod, and a monitoring device for monitoring the movement of the injection push rod. The monitoring device includes the circuit for reducing standby power consumption described in the first embodiment.

For ease of understanding, the following example illustrates the use of the smart injector:

1) The working device 12 starts up. When the user needs to use the syringe, press the button switch (that is, the second switch 14 is a button switch), and the working device 12 is activated and starts to work. If the second switch 14 is an acceleration-sensing switch, the working device 12 is automatically activated when the user picks up the syringe; similarly, if the second switch 14 is a noise-sensing switch, the user picks up the syringe and says a word casually, The working device 12 can be automatically activated by actions such as snapping your fingers and making a sound.

2) The working device 12 works. The user uses the syringe, the working device 12 monitors the injected dose, the MCU in the working device 12 continues to work, and continues to send a preset voltage signal to the second input end of the first switch 13, the first switch is continuously turned on, and the working device 12 Continuous power supply.

3) MCU work ends. When the user ends using the syringe, the work of the working device 12 also ends, the MCU in the working device 12 stops working, and the preset voltage signal also stops sending out. The first switch is turned off, the working equipment 12 is powered off, all components stop working, and there is no power consumption.

In some cases, if the user's process of using the syringe is relatively standard and proficient, the MCU can be given a preset time to work, and when the preset time is reached, the MCU will automatically stop working. Specifically, the MCU monitors the state of the second switch 14, and when the second switch 14 is turned off, the MCU starts timing, and when the timing reaches a preset value, the MCU stops working. In this way, the power consumption of the core working components can be further reduced on the basis of reducing the power consumption of the auxiliary working components.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

In the description of the embodiments of the present invention, unless otherwise stated and limited, the term "connection" should be understood in a broad sense. For example, it may be an electrical connection, or the internal communication between two components, or a direct connection or an intermediate connection. The medium is indirectly connected, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

In the embodiments of the present invention, if the term "first\second\third" is involved, it only distinguishes similar objects, and does not represent a specific ordering of objects. It is understandable that "first\second\third" The specific order or sequence may be interchanged where permitted.

It is to be understood that reference throughout the specification to "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the embodiments of the present invention. implementation constitutes any limitation. The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be electrical, mechanical or other forms. of.

The above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the within the protection scope of the present invention.

Claims (10)

1. A circuit for reducing standby power consumption, the circuit comprising:

a power source;

a working device;

the first switch is used for switching the connection and disconnection between the power supply and the working equipment according to a preset voltage signal;

a second switch for providing a preset voltage signal to the first switch;

the first switch comprises a first input end connected with a power supply, a second input end for receiving a preset voltage signal and an output end for outputting electric energy to the working equipment; the second input end is respectively connected with the working equipment and the second switch;

the input end of the working equipment is connected with the output end of the first switch, and the output end of the working equipment is connected with the second input end of the first switch; when the working equipment works, a preset voltage signal is sent to the first switch through the second input end;

the input end of the second switch is connected with the power supply, and the output end of the second switch is connected with the second input end of the first switch; when the second switch is closed, a preset voltage signal is sent to the first switch through the second input end.

2. The circuit for reducing standby power consumption according to claim 1, wherein a first unidirectional conducting element is disposed between the output terminal of the operating device and the second input terminal of the first switch.

3. The circuit for reducing standby power consumption according to claim 2, wherein a second unidirectional conducting element is disposed between the output terminal of the second switch and the second input terminal of the first switch.

4. The circuit for reducing standby power consumption according to any one of claims 1 to 3, wherein the first switch is an analog switch.

5. The circuit for reducing standby power consumption according to any one of claims 1 to 3, wherein the second switch is a push button switch.

6. The circuit for reducing standby power consumption according to any one of claims 1 to 3, wherein the second switch is an acceleration sensing switch.

7. The circuit for reducing standby power consumption according to any one of claims 1 to 3, wherein the second switch is a noise-sensitive switch.

8. The circuit for reducing standby power consumption according to claim 3, wherein the first one-way conduction element and the second one-way conduction element are both diodes.

9. The circuit for reducing standby power consumption according to any one of claims 1 to 3, wherein the operating device further comprises a monitoring input terminal for monitoring a state of a second switch, when the second switch is turned off, the operating device starts timing, and when the timing reaches a preset value, the operating device stops operating.

10. An intelligent injector, characterized in that the intelligent injector comprises a shell, an injection push rod and a monitoring device for monitoring the movement of the injection push rod, wherein the monitoring device comprises the circuit for reducing standby power consumption as claimed in any one of claims 1-9.

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