CN216904896U - Wireless sensing low-power consumption circuit - Google Patents
Wireless sensing low-power consumption circuit Download PDFInfo
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- CN216904896U CN216904896U CN202220596057.2U CN202220596057U CN216904896U CN 216904896 U CN216904896 U CN 216904896U CN 202220596057 U CN202220596057 U CN 202220596057U CN 216904896 U CN216904896 U CN 216904896U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a wireless sensing low-power consumption circuit.A power supply circuit has an output end electrically connected with an input end of a wake-up dormant circuit and a power supply input end of a processor respectively; the awakening dormancy circuit is respectively in bidirectional electric connection with the acquisition circuit and the analog-to-digital conversion circuit, is electrically connected with the wireless transmission circuit and is electrically connected with the enabling output end of the processor; the signal output end of the acquisition circuit is electrically connected with the signal input end of the analog-to-digital conversion circuit, the signal output end of the analog-to-digital conversion circuit is electrically connected with the signal input end of the processor, the signal output end of the processor is electrically connected with the signal input end of the wireless transmission circuit, and the signal output end of the wireless transmission circuit is in communication connection with the relay protection device through a wireless network. The wireless sensing low-power-consumption circuit solves the problem that the power consumption of the existing wireless sensing circuit is large.
Description
Technical Field
The utility model relates to the technical field of wireless sensing, in particular to a wireless sensing low-power consumption circuit.
Background
The power sensor unit is widely used, especially in the aspect of relay protection of power lines. However, certain locations of the power lines require batteries as a power source of the device due to limitations of safe insulation distance, installation time of the device, or fixing manner, which all require the power sensor unit to have low power consumption characteristics. However, the conventional wireless sensing circuit consumes a large amount of power, and the battery as a power source of the device is not durable, so that frequent maintenance is required to replace the battery, and it is difficult to satisfy the reliability requirement of the relay protection.
SUMMERY OF THE UTILITY MODEL
In view of the above drawbacks, the present invention provides a wireless sensing low power consumption circuit, which solves the problem of high power consumption of the existing wireless sensing circuit.
In order to achieve the purpose, the utility model adopts the following technical scheme: a wireless sensing low-power consumption circuit comprises a power supply circuit, a wake-up sleeping circuit, an acquisition circuit, an analog-to-digital conversion circuit, a processor and a wireless transmission circuit;
the output end of the power supply circuit is respectively and electrically connected with the input end of the awakening sleep circuit and the power supply input end of the processor;
the awakening sleep circuit is respectively in bidirectional electric connection with the acquisition circuit and the analog-to-digital conversion circuit, the awakening sleep circuit is electrically connected with the wireless transmission circuit, and the awakening sleep circuit is electrically connected with an enabling output end of the processor;
the awakening sleep circuit is used for conducting a loop between the power supply circuit and the power input end of the acquisition circuit according to the time set by the processor, conducting a loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit after receiving a high level signal of the acquisition circuit, and conducting a loop between the power supply circuit and the power input end of the wireless transmission circuit after receiving the high level signal of the analog-to-digital conversion circuit;
the signal output end of the acquisition circuit is electrically connected with the signal input end of the analog-to-digital conversion circuit, the signal output end of the analog-to-digital conversion circuit is electrically connected with the signal input end of the processor, the signal output end of the processor is electrically connected with the signal input end of the wireless transmission circuit, and the signal output end of the wireless transmission circuit is in communication connection with the relay protection device through a wireless network.
It should be noted that the power output terminal VOUT1 of the wake-up sleep circuit is electrically connected to the power input terminal VCC1 of the acquisition circuit, and the level output terminal LOUT1 of the acquisition circuit is electrically connected to the level input terminal LIN1 of the wake-up sleep circuit;
a power output end VOUT2 of the wake-up sleep circuit is electrically connected with a power input end VCC2 of the analog-to-digital conversion circuit, and a level output end LOUT2 of the analog-to-digital conversion circuit is electrically connected with a level input end LIN2 of the wake-up sleep circuit;
the power output end VOUT3 of the wake-up sleep circuit is electrically connected with the power input end VCC3 of the wireless transmission circuit;
optionally, the wake-up sleep circuit includes a low dropout regulator LDO1, the processor includes a timing module, the power input terminal VSS1 of the low dropout regulator LDO1 is electrically connected to the output terminal of the power supply circuit, the sampled voltage input terminal INH1 of the low dropout regulator LDO1 is electrically connected to the timing module, the timing module is configured to send a high-level signal to the sampled voltage input terminal INH1 of the low dropout regulator LDO1 at a set time, and the output terminal of the low dropout regulator LDO1 is the power output terminal VOUT1 of the wake-up sleep circuit.
Specifically, the wake-up sleep circuit further comprises a low dropout linear regulator LDO2 and a low dropout linear regulator LDO3, wherein a power supply input terminal VSS2 of the low dropout linear regulator LDO2 and a power supply input terminal VSS3 of the low dropout linear regulator LDO3 are connected in parallel and then electrically connected with an output terminal of the power supply circuit;
a sampling voltage input end of the low dropout regulator LDO2 is a level input end LIN1 of the wake-up sleep circuit, and a sampling voltage input end of the low dropout regulator LDO3 is a level input end LIN2 of the wake-up sleep circuit;
the output end of the low dropout regulator LDO2 is the power output end VOUT2 of the wake-up sleep circuit, and the output end of the low dropout regulator LDO3 is the power output end VOUT3 of the wake-up sleep circuit.
Preferably, the power supply circuit comprises a battery, a short-circuit protection circuit, a filter circuit and a cache circuit, the output end of the battery is electrically connected with the input end of the short-circuit protection circuit, the output end of the short-circuit protection circuit is electrically connected with the input end of the filter circuit, the output end of the filter circuit is electrically connected with the input end of the cache circuit, and the output end of the cache circuit is electrically connected with the input end of the wake-up sleep circuit.
It should be noted that the filter circuit includes a resistor R1, a capacitor C1, and a transistor VT1, one end of the resistor R1 is electrically connected to the output terminal of the short-circuit protection circuit after being connected in parallel with the collector of the transistor VT1, the base of the transistor VT1 is electrically connected to the other end of the resistor R1, the other end of the resistor R1 is grounded via the capacitor C1, and the emitter of the transistor VT1 is electrically connected to the input terminal of the buffer circuit.
Optionally, the wireless sensing low power consumption circuit further includes a manual trigger button, the output end of the power supply circuit is electrically connected to the sampling voltage input end INH1 of the low dropout regulator LDO1 of the wake-up sleep circuit through the manual trigger button, and the manual trigger button is a normally open switch.
One of the above technical solutions has the following beneficial effects:
1. in the wireless sensing low-power-consumption circuit, the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit are driven to work through the awakening sleep circuit, the corresponding circuit is awakened when the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit need to work, and the corresponding circuit is made to sleep when the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit do not need to work, so that the circuit which does not work is in the state of lowest energy consumption, the electric energy is saved to the maximum extent, the durability of a battery in the power supply circuit is improved, the battery does not need to be replaced frequently, and the reliability requirement of relay protection is met.
2. After the time set by the processor is reached, the processor sends a trigger signal to the awakening sleep circuit through an enabling output end of the processor, the awakening sleep circuit receives the trigger signal and then conducts a loop between the power supply circuit and a power supply input end of the acquisition circuit, the acquisition circuit is awakened from a sleep state after being powered on and starts to work to acquire a state corresponding to the power line, wherein the state corresponding to the power line comprises parameters such as current or voltage, and the like, the current is acquired through a current transformer, and the voltage is acquired through a voltage transformer; after the acquisition circuit acquires a state corresponding to the power line, the acquisition circuit sends a high level signal to the awakening sleep circuit, the awakening sleep circuit receives the high level signal sent by the acquisition circuit and then conducts a loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is awakened from the sleep state and starts to work after being powered on, meanwhile, the acquisition circuit also sends the acquired state corresponding to the power line to the analog-to-digital conversion circuit, then the processor sends a low level signal to the awakening sleep circuit and cuts off the loop between the power supply circuit and the power input end of the acquisition circuit, and the acquisition circuit enters the sleep state; the analog-to-digital conversion circuit converts an analog signal in a state corresponding to a power line into a digital signal, the analog-to-digital conversion circuit sends a high level signal to the awakening sleep circuit, the awakening sleep circuit receives the high level signal sent by the analog-to-digital conversion circuit, then a loop between the power supply circuit and the power input end of the wireless transmission circuit is conducted, the wireless transmission circuit is awakened from the sleep state after being powered on and starts to work, meanwhile, the analog-to-digital conversion circuit also sends the state corresponding to the power line converted into the digital signal to the processor, then the processor sends a low level signal to the awakening sleep circuit, the loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit is cut off, and the analog-to-digital conversion circuit enters sleep; the processor processes the state that the power line that will convert into digital signal corresponds, forms the trigger signal that relay protection device corresponds and sends wireless transmission circuit, wireless transmission circuit sends relay protection device through wireless network with the trigger signal that relay protection device corresponds, and after finishing sending, the processor to awaken dormancy circuit and send low level signal, cut off return circuit between power supply circuit and wireless transmission circuit's the power input end makes wireless transmission circuit gets into the dormancy.
Drawings
FIG. 1 is a circuit block diagram of a wireless sensing low power consumption circuit in one embodiment of the utility model;
FIG. 2 is a block diagram of circuitry between a wake-up sleep circuit and an acquisition circuit in one embodiment of the utility model;
FIG. 3 is a block diagram of circuitry between a wake-up sleep circuit and an analog-to-digital conversion circuit in an embodiment of the utility model;
FIG. 4 is a block diagram of circuitry between a wake-up sleep circuit and a wireless transmission circuit in one embodiment of the utility model;
FIG. 5 is a block circuit diagram of the LDO1 according to an embodiment of the present invention;
FIG. 6 is a block circuit diagram of the LDO1 and the LDO2 according to an embodiment of the present invention;
FIG. 7 is a block circuit diagram of a power supply circuit in an embodiment of the utility model;
fig. 8 is a circuit diagram of a filter circuit in an embodiment of the utility model.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The wireless sensing low-power consumption circuit according to the embodiment of the present invention is described below with reference to fig. 1 to 8, and includes a power supply circuit, a wake-up sleep circuit, an acquisition circuit, an analog-to-digital conversion circuit, a processor, and a wireless transmission circuit;
the output end of the power supply circuit is respectively and electrically connected with the input end of the awakening sleep circuit and the power supply input end of the processor; the power supply circuit provides electric energy for the processor so as to ensure that the processor can work normally;
the awakening sleep circuit is respectively in bidirectional electric connection with the acquisition circuit and the analog-to-digital conversion circuit, the awakening sleep circuit is electrically connected with the wireless transmission circuit, and the awakening sleep circuit is electrically connected with an enabling output end of the processor;
the awakening sleep circuit is used for conducting a loop between the power supply circuit and the power input end of the acquisition circuit according to the time set by the processor, conducting a loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit after receiving a high level signal of the acquisition circuit, and conducting a loop between the power supply circuit and the power input end of the wireless transmission circuit after receiving the high level signal of the analog-to-digital conversion circuit;
the signal output end of the acquisition circuit is electrically connected with the signal input end of the analog-to-digital conversion circuit, the signal output end of the analog-to-digital conversion circuit is electrically connected with the signal input end of the processor, the signal output end of the processor is electrically connected with the signal input end of the wireless transmission circuit, and the signal output end of the wireless transmission circuit is in communication connection with the relay protection device through a wireless network.
In the wireless sensing low-power-consumption circuit, the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit are driven to work through the awakening sleep circuit, the corresponding circuit is awakened when the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit need to work, and the corresponding circuit is made to sleep when the acquisition circuit, the analog-to-digital conversion circuit and the wireless transmission circuit do not need to work, so that the circuit which does not work is in the state of lowest energy consumption, the electric energy is saved to the maximum extent, the durability of a battery in the power supply circuit is improved, the battery does not need to be replaced frequently, and the reliability requirement of relay protection is met.
It is worth to say that the processor is an MCU chip, the processor has an automatic sleep wake-up function, and when the processor does not need to work, the processor automatically enters a sleep mode, so that energy consumption is reduced, and when the processor needs to work, the processor can automatically wake up. For example, the processor wakes up when the set time of the processor is reached and the processor sends and receives signals, wherein the set time of the processor is the sampling frequency of the acquisition circuit, and the longer the set time is, the higher the sampling frequency is, and the lower the energy consumption in the same time period is.
As shown in fig. 1, after the time set by the processor is reached, the processor sends a trigger signal to the wake-up sleep circuit through its own enable output end, the wake-up sleep circuit receives the trigger signal and then turns on a loop between the power supply circuit and a power input end of the acquisition circuit, the acquisition circuit wakes up from a sleep state and starts to work after being powered on, and acquires a state corresponding to the power line, wherein the state corresponding to the power line includes parameters such as current or voltage, and the current is obtained through a current transformer, and the voltage is obtained through a voltage transformer; after the acquisition circuit acquires a state corresponding to the power line, the acquisition circuit sends a high level signal to the awakening sleep circuit, the awakening sleep circuit receives the high level signal sent by the acquisition circuit and then conducts a loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is awakened from the sleep state and starts to work after being powered on, meanwhile, the acquisition circuit also sends the acquired state corresponding to the power line to the analog-to-digital conversion circuit, then the processor sends a low level signal to the awakening sleep circuit and cuts off the loop between the power supply circuit and the power input end of the acquisition circuit, and the acquisition circuit enters the sleep state; the analog-to-digital conversion circuit converts an analog signal in a state corresponding to a power line into a digital signal, the analog-to-digital conversion circuit sends a high level signal to the awakening sleep circuit, the awakening sleep circuit receives the high level signal sent by the analog-to-digital conversion circuit, then a loop between the power supply circuit and the power input end of the wireless transmission circuit is conducted, the wireless transmission circuit is awakened from the sleep state after being powered on and starts to work, meanwhile, the analog-to-digital conversion circuit also sends the state corresponding to the power line converted into the digital signal to the processor, then the processor sends a low level signal to the awakening sleep circuit, the loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit is cut off, and the analog-to-digital conversion circuit enters sleep; the processor processes the state that the power line that will convert into digital signal corresponds, forms the trigger signal that relay protection device corresponds and sends wireless transmission circuit, wireless transmission circuit sends relay protection device through wireless network with the trigger signal that relay protection device corresponds, and after finishing sending, the processor to awaken dormancy circuit and send low level signal, cut off return circuit between power supply circuit and wireless transmission circuit's the power input end makes wireless transmission circuit gets into the dormancy.
In some embodiments, as shown in fig. 2 to 4, the power output terminal VOUT1 of the wake-up sleep circuit is electrically connected to the power input terminal VCC1 of the acquisition circuit, and the level output terminal LOUT1 of the acquisition circuit is electrically connected to the level input terminal LIN1 of the wake-up sleep circuit;
a power output end VOUT2 of the wake-up sleep circuit is electrically connected with a power input end VCC2 of the analog-to-digital conversion circuit, and a level output end LOUT2 of the analog-to-digital conversion circuit is electrically connected with a level input end LIN2 of the wake-up sleep circuit;
the power output end VOUT3 of the wake-up sleep circuit is electrically connected with the power input end VCC3 of the wireless transmission circuit;
after the time that reaches the treater setting, the treater through its self enable output to awaken dormancy circuit and send trigger signal, awaken dormancy circuit and receive behind the trigger signal, awaken dormancy circuit and will awaken dormancy circuit will power supply circuit's voltage transform into output electric energy signal, and follow awaken dormancy circuit's power output end VOUT1 to acquisition circuit's power input end VCC1 carries, just can get the electricity after acquisition circuit's power output end VCC1 receives output electric energy signal and begin work.
After the acquisition circuit acquires the state corresponding to the power line, the acquisition circuit sends a high level to the level input end LIN1 of the awakening sleep circuit through the level output end LOUT1 of the acquisition circuit, so that the awakening sleep circuit transmits an output electric energy signal from the power output end VOUT2 of the acquisition circuit to the power input end VCC2 of the analog-to-digital conversion circuit, and the power input end VCC2 of the analog-to-digital conversion circuit can be powered on to start working after receiving the output electric energy signal.
After the analog-to-digital conversion circuit converts the signal, the analog-to-digital conversion circuit sends the digital signal to the processor, the analog-to-digital conversion circuit also sends a high level to the power input terminal LIN2 of the wake-up sleep circuit through the level output terminal LOUT2 of the analog-to-digital conversion circuit, so that the wake-up sleep circuit transmits the output power signal from the power output terminal VOUT3 of the wake-up sleep circuit to the power input terminal VCC3 of the wireless transmission circuit, and the power input terminal VCC2 of the wireless transmission circuit can be powered on to start working after receiving the output power signal.
It should be noted that, as shown in fig. 5, the wake-up sleep circuit includes a low dropout linear regulator LDO1, the processor includes a timing module, a power input terminal VSS1 of the low dropout linear regulator LDO1 is electrically connected to an output terminal of the power supply circuit, a sampled voltage input terminal INH1 of the low dropout linear regulator LDO1 is electrically connected to the timing module, the timing module is configured to send a high-level signal to the sampled voltage input terminal INH1 of the low dropout linear regulator LDO1 at a set time, and an output terminal of the low dropout linear regulator 1 is the power output terminal VOUT1 of the wake-up sleep circuit.
The utility model discloses a low dropout regulator LDO1, including timing module, awakening sleep circuit, the treater is arranged in the timing module place the treater for according to the internal clock of treater times, works as when the accumulative total time of timing module reaches the time of settlement, timing module will pass through the messenger output of treater to awaken the trigger signal is sent to sleep circuit's low dropout regulator LDO 1's sampling voltage input INH1, wherein the trigger signal is high level signal, awaken sleep circuit and will follow output electric energy signal awaken sleep circuit's power output VOUT1 to acquisition circuit's power input VCC1 carries, acquisition circuit's power output VCC1 just can get the electricity after receiving output electric energy signal and begin work.
Optionally, as shown in fig. 6, the wake-up sleep circuit further includes a low dropout linear regulator LDO2 and a low dropout linear regulator LDO3, and the power input terminal VSS2 of the low dropout linear regulator LDO2 and the power input terminal VSS3 of the low dropout linear regulator LDO3 are connected in parallel and then electrically connected to the output terminal of the power supply circuit;
a sampling voltage input end of the low dropout regulator LDO2 is a level input end LIN1 of the wake-up sleep circuit, and a sampling voltage input end of the low dropout regulator LDO3 is a level input end LIN2 of the wake-up sleep circuit;
the output end of the low dropout regulator LDO2 is the power output end VOUT2 of the wake-up sleep circuit, and the output end of the low dropout regulator LDO3 is the power output end VOUT3 of the wake-up sleep circuit.
The circuit structure of low dropout linear regulator LDO1, low dropout linear regulator LDO2 and low dropout linear regulator LDO3 is current circuit structure, sample voltage input end is connected with comparison amplifier's homophase input electricity, supply circuit's output is connected with comparison amplifier's reverse input electricity, when the signal of sample voltage input end is high level signal, stable output electric energy is to acquisition circuit, analog-to-digital conversion circuit or wireless transmission circuit, when the signal of sample voltage input end is high level signal, can not output electric energy to acquisition circuit, analog-to-digital conversion circuit or wireless transmission circuit.
Specifically, as shown in fig. 7, the power supply circuit includes a battery, a short-circuit protection circuit, a filter circuit, and a cache circuit, an output end of the battery is electrically connected to an input end of the short-circuit protection circuit, an output end of the short-circuit protection circuit is electrically connected to an input end of the filter circuit, an output end of the filter circuit is electrically connected to an input end of the cache circuit, and an output end of the cache circuit is electrically connected to an input end of the wake-up sleep circuit.
The battery is used as the power supply of the power supply circuit, and a commercial power lead is not needed, so that the installation is convenient. The short-circuit protection circuit is of an existing circuit structure and is used for avoiding damage to the battery due to overheating of the battery caused by short circuit of the circuit; the cache circuit is of an existing circuit structure and used for protecting the battery and preventing the large current drawn by the acquisition circuit during working from shortening the service life of the battery.
Preferably, as shown in fig. 8, the filter circuit includes a resistor R1, a capacitor C1, and a transistor VT1, one end of the resistor R1 is electrically connected to the collector of the transistor VT1 in parallel and then electrically connected to the output end of the short-circuit protection circuit, the base of the transistor VT1 is electrically connected to the other end of the resistor R1, the other end of the resistor R1 is grounded via the capacitor C1, and the emitter of the transistor VT1 is electrically connected to the input end of the buffer circuit.
The filter circuit is used for filtering high-frequency signals and interference signals in the power supply circuit, and the efficiency of battery power supply is improved. The resistor R1 and the capacitor C1 form an RC filtering module, and provide relatively stable direct current voltage for the base electrode of the triode VT1, so that the ripple component of the output voltage is reduced. The capacitor C2 is grounded to filter out high frequency in the circuit, and the resistor R2 plays a role of shunt.
In some embodiments, the wireless sensing low power consumption circuit further includes a manual trigger button, the output terminal of the power supply circuit is electrically connected to the sampled voltage input terminal INH1 of the low dropout regulator LDO1 of the wake-up sleep circuit through the manual trigger button, and the manual trigger button is a normally open switch.
When the state corresponding to the power line needs to be manually acquired, if the sampling frequency is too low, a long time needs to be waited, at the moment, the manual trigger key is pressed through the manual trigger key, so that the sampling voltage input end INH1 of the low dropout linear regulator LDO1 can acquire a high level, and then the acquisition circuit can work without waiting for the time set by the processor.
Other configurations, etc. and operations of wireless sensing low power consumption circuits according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A wireless sensing low-power consumption circuit is characterized in that: the wireless power supply device comprises a power supply circuit, a wake-up sleep circuit, an acquisition circuit, an analog-to-digital conversion circuit, a processor and a wireless transmission circuit;
the output end of the power supply circuit is respectively and electrically connected with the input end of the awakening sleep circuit and the power supply input end of the processor;
the awakening sleep circuit is respectively in bidirectional electric connection with the acquisition circuit and the analog-to-digital conversion circuit, the awakening sleep circuit is electrically connected with the wireless transmission circuit, and the awakening sleep circuit is electrically connected with an enabling output end of the processor;
the awakening sleep circuit is used for conducting a loop between the power supply circuit and the power input end of the acquisition circuit according to the time set by the processor, conducting a loop between the power supply circuit and the power input end of the analog-to-digital conversion circuit after receiving a high level signal of the acquisition circuit, and conducting a loop between the power supply circuit and the power input end of the wireless transmission circuit after receiving the high level signal of the analog-to-digital conversion circuit;
the signal output end of the acquisition circuit is electrically connected with the signal input end of the analog-to-digital conversion circuit, the signal output end of the analog-to-digital conversion circuit is electrically connected with the signal input end of the processor, the signal output end of the processor is electrically connected with the signal input end of the wireless transmission circuit, and the signal output end of the wireless transmission circuit is in communication connection with the relay protection device through a wireless network.
2. The wireless sensing low power consumption circuit of claim 1, wherein: the power output end VOUT1 of the awakening sleep circuit is electrically connected with the power input end VCC1 of the acquisition circuit, and the level output end LOUT1 of the acquisition circuit is electrically connected with the level input end LIN1 of the awakening sleep circuit;
a power output end VOUT2 of the wake-up sleep circuit is electrically connected with a power input end VCC2 of the analog-to-digital conversion circuit, and a level output end LOUT2 of the analog-to-digital conversion circuit is electrically connected with a level input end LIN2 of the wake-up sleep circuit;
and the power output end VOUT3 of the wake-up sleep circuit is electrically connected with the power input end VCC3 of the wireless transmission circuit.
3. The wireless sensing low power consumption circuit of claim 2, wherein: awakening sleep circuit includes low dropout regulator LDO1, the processor includes timing module, low dropout regulator LDO 1's power input VSS1 with power supply circuit's output electricity is connected, low dropout regulator LDO 1's sampling voltage input INH1 with timing module electricity is connected, timing module be used for at the time of setting for low dropout regulator LDO 1's sampling voltage input INH1 sends high level signal, low dropout regulator LDO 1's output is awaken sleep circuit's power output VOUT 1.
4. The wireless sensing low power consumption circuit of claim 3, wherein: the wake-up sleep circuit further comprises a low dropout linear regulator LDO2 and a low dropout linear regulator LDO3, wherein a power supply input end VSS2 of the low dropout linear regulator LDO2 and a power supply input end VSS3 of the low dropout linear regulator LDO3 are connected in parallel and then electrically connected with an output end of the power supply circuit;
a sampling voltage input end of the low dropout regulator LDO2 is a level input end LIN1 of the wake-up sleep circuit, and a sampling voltage input end of the low dropout regulator LDO3 is a level input end LIN2 of the wake-up sleep circuit;
the output end of the low dropout regulator LDO2 is the power output end VOUT2 of the wake-up sleep circuit, and the output end of the low dropout regulator LDO3 is the power output end VOUT3 of the wake-up sleep circuit.
5. The wireless sensing low power consumption circuit of claim 1, wherein: the power supply circuit comprises a battery, a short-circuit protection circuit, a filter circuit and a cache circuit, wherein the output end of the battery is electrically connected with the input end of the short-circuit protection circuit, the output end of the short-circuit protection circuit is electrically connected with the input end of the filter circuit, the output end of the filter circuit is electrically connected with the input end of the cache circuit, and the output end of the cache circuit is electrically connected with the input end of the awakening sleep circuit.
6. The wireless sensing low power consumption circuit of claim 5, wherein: the filter circuit comprises a resistor R1, a capacitor C1 and a triode VT1, wherein one end of the resistor R1 is electrically connected with the output end of the short-circuit protection circuit after being connected with the collector of the triode VT1 in parallel, the base of the triode VT1 is electrically connected with the other end of the resistor R1, the other end of the resistor R1 is grounded through the capacitor C1, and the emitter of the triode VT1 is electrically connected with the input end of the cache circuit.
7. The wireless sensing low power consumption circuit of claim 3, wherein: the wireless sensing low-power consumption circuit further comprises a manual trigger button, the output end of the power supply circuit is connected with the sampling voltage input end INH1 of the low dropout linear regulator LDO1 of the awakening sleep circuit through the manual trigger button, and the manual trigger button is a normally open switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220596057.2U CN216904896U (en) | 2022-03-18 | 2022-03-18 | Wireless sensing low-power consumption circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220596057.2U CN216904896U (en) | 2022-03-18 | 2022-03-18 | Wireless sensing low-power consumption circuit |
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| CN216904896U true CN216904896U (en) | 2022-07-05 |
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| CN202220596057.2U Active CN216904896U (en) | 2022-03-18 | 2022-03-18 | Wireless sensing low-power consumption circuit |
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