CN212674276U - Battery-free Bluetooth wireless communication electronic weighing device - Google Patents
Battery-free Bluetooth wireless communication electronic weighing device Download PDFInfo
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- CN212674276U CN212674276U CN202022003104.1U CN202022003104U CN212674276U CN 212674276 U CN212674276 U CN 212674276U CN 202022003104 U CN202022003104 U CN 202022003104U CN 212674276 U CN212674276 U CN 212674276U
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- 238000004891 communication Methods 0.000 title claims abstract description 52
- 238000005303 weighing Methods 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 80
- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 238000003306 harvesting Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses a no battery bluetooth wireless communication electron weighing device, the device is including energy collecting system, bluetooth communication system and the display system that weighs, and the input of first voltage detection circuit is connected to rectennaTerminal VinWith input to the energy-harvesting circuit, output V of the first voltage-detection circuitOD1An enable terminal connected to the energy collecting circuit, and an output V of the first voltage detecting circuitOD1Is connected with the first output VC of the energy collection circuit through a pull-up resistor R1; the first output VC is connected with one end of a capacitor C0, the second output VS of the energy collecting circuit is connected with one end of a capacitor C1 and the input of the power supply management module, and the outputs V1 and V2 of the power supply management module are connected with the electric energy input end of the weighing display system; the output V3 of the power management module is connected with the electric energy input end of the Bluetooth communication system; the method adopts a wireless energy collection technology as a power supply and adopts the power consumption of a zero-power continuous voltage detection technology system, so that the device is free from the constraint of a battery and charging in practical application.
Description
Technical Field
The utility model belongs to the technical field of wireless energy collects, concretely relates to no battery bluetooth wireless communication electron weighing device.
Background
With the increasing interest of people on healthy life and the continuous development of information technology, people have higher and higher requirements for mastering the intake subdivision information of nutrient components in daily life. By transmitting the weight information of the ingested food to the operation terminal for analysis in real time, people can easily obtain the required parameter data.
In the prior art, the weighing device can normally work only by being powered by a battery, which brings inconvenience to the application of the weighing device.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides an adopt weighing and bluetooth wireless communication system of energy collection power supply, the measured object can show through digital processing after weighing through weighing system to transmit data to the terminal equipment who pairs with it through bluetooth communication system.
In order to achieve the above object, the present invention adopts a technical solution that a battery-less bluetooth wireless communication electronic weighing device comprises an energy collection system, a bluetooth communication system and a weighing display system, wherein the energy collection system comprises a rectifying antenna, a first voltage detection circuit, an energy collection circuit and a power management module; the rectifying antenna is connected with the input end V of the first voltage detection circuitinWith input to the energy-harvesting circuit, output V of the first voltage-detection circuitOD1An enable terminal connected to the energy collecting circuit, and an output V of the first voltage detecting circuitOD1Is connected with the first output VC of the energy collection circuit through a pull-up resistor R1; a first output VC connected to one end of a capacitor C0 and a second output of the energy collecting circuitOne end of a VS connecting capacitor C1 is connected with the input of the power supply management module, and the outputs V1 and V2 of the power supply management module are connected with the electric energy input end of the weighing display system; the output V3 of the power management module is connected with the electric energy input end of the Bluetooth communication system; the other ends of the capacitor C0 and the capacitor C1 are grounded, and the grounding ends of the first voltage detection circuit, the energy collection circuit and the power management module are grounded;
in a bluetooth communication system: the input end of the Bluetooth module is connected with a communication antenna; in the weighing display system: the pressure sensor group is connected with the input end of the digital signal processing and controlling module, and the input interface of the liquid crystal display is connected with the output interface of the digital signal processing and controlling module; the digital signal processing and controlling module is in communication connection with the Bluetooth module.
A second voltage detection circuit is also arranged in the Bluetooth communication system, and a communication antenna in the Bluetooth communication system is connected with an input end V of the second voltage detection circuitinWith input of Bluetooth module, output V of second voltage detection circuitOD2The output V of the second voltage detection circuit is connected with VS through a pull-up resistor R2OD2The Bluetooth module is connected with the enabled end of the Bluetooth module, and the power supply of the Bluetooth module is connected with the V3.
The second voltage detection circuit is the same as the first voltage detection circuit.
The weighing display system is internally provided with a third voltage detection circuit, a power supply of the pressure sensor group is connected with V1, the output of the pressure sensor group is connected with the input of the third voltage detection circuit and is used as an input signal of the third voltage detection circuit, the power supply of the digital signal processing and control module is connected with V2, and the output V of the third voltage detection circuitOD3Connected to VS across respective pull-up resistors R3, VOD3And the digital signal processing and control module and the enabling end of the liquid crystal display are respectively connected.
The third voltage detection circuit is the same as the first voltage detection circuit.
The voltage monitoring circuit comprises a high-voltage monitoring circuit, a medium-voltage monitoring circuit and a low-voltage monitoring circuit, wherein the V0H output of the high-voltage monitoring circuit is connected with the control end of the medium-voltage monitoring single circuit, the V0M output of the medium-voltage monitoring circuit is connected with the control end of the low-voltage monitoring circuit, and the VOD1 output of the high-voltage monitoring circuit, the VOD2 output of the medium-voltage monitoring circuit and the VOD3 output of the low-voltage monitoring circuit are all connected with the output VOD1 of the LX01 voltage monitoring circuit.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses a wireless energy collection technique provides the power for the system, therefore the system need not the battery and charges, the system provides bluetooth communication mode, simultaneously integrated weigh and show the function, and transmit data to the terminal equipment who pairs with it through bluetooth communication system, the measured target can show in real time through digital processing after weighing through weighing system, when not weighing and communication demand, eliminate the consumption of load, when not having the energy collection, close the energy collection system, thereby the energy that the system was collected satisfies the load demand, very big promotion its convenience of use, the input of voltage detection circuit uses the signal after the rectification antenna as its power, can continuously monitor the input of rectification antenna under the condition that need not consume the system power consumption; when there is no input signal, the output end V of the voltage detection circuitOD1The energy collection circuit stops working at a low level, and static power consumption is not consumed.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Fig. 2 is a signal control schematic diagram of the medium voltage detection circuit of the present invention.
In the attached figure, 1-a rectifying antenna, 2-a first voltage detection circuit, 3-an energy collection circuit, 4-a power management module, 5-a communication antenna, 6-a second voltage detection circuit, 7-a Bluetooth module, 8-a digital signal processing and control module, 9-a pressure sensor group, 10-a liquid crystal display and 11-a third voltage detection circuit.
Detailed Description
The present invention will be explained in detail with reference to the accompanying drawings.
The utility model discloses a zero-power consumption standby voltage detection technique reduces the consumption of energy collecting system self and load simultaneously, can let the energy of system collection satisfy the load demand, this utility model integrated bluetooth and pressure sensor group simultaneously to with weighing result display, very big promotion its convenience of using.
Voltage detection circuitry includes first voltage detection circuitry 2, second voltage detection circuitry 6 and third voltage detection circuitry 11. Voltage detection circuit can adopt application number 2017109715319, the name is a voltage signal source real-time continuous monitoring device and monitoring method's patent the scheme.
The energy harvesting system of the present invention employs an energy harvester circuit based on LTC 3588; or the energy collection and power management are realized by adopting a Maxim MAX17710 energy collector and protector energy collection system and a power management module.
As shown in fig. 1, the utility model provides a bluetooth electronic weighing system without battery includes an energy collecting system, a bluetooth communication system and a weighing display system; wherein in the energy harvesting system: input end V of rectifying antenna 1 and first voltage detection circuit 2inConnecting; the rectifying antenna 1 is also connected with the input end of the first voltage detection circuit 2, and the output end V of the first voltage detection circuit 2OD1Is connected to a first output VC of an energy collecting circuit 3 of the energy collecting circuit 3 via a pull-up resistor R1, VOD1The rectifying antenna 1 is connected with the input of the energy collecting circuit 3, the grounding end of the first voltage detection circuit 2 is grounded, the grounding end of the energy collecting circuit 3 is grounded, one end of the capacitor C0 is connected with the first output VC of the energy collecting circuit 3, and the other end of the capacitor C0 is grounded; one end of the capacitor C1 is connected to the second output VS of the energy collecting circuit 3; the input of the power management module 4 is connected with the second output end VS of the energy collecting circuit 3; the output of the power management module 4 is respectively connected with the power supply of the Bluetooth module 13, the power supply of the digital signal processing and control module 8 and the power supply of the pressure sensor group; the ground terminal of the power management module 4 is grounded.
The Bluetooth communication system comprises a communication antenna 5, a second voltage detection circuit 9 and a Bluetooth module 7; the communication antenna 5 in the Bluetooth communication system is connected with the input end V of the second voltage detection circuit 6inInput terminal of Bluetooth module, second voltage detection circuit6 output VOD2The output V of the second voltage detection circuit 6 is connected with VS through a pull-up resistor R2OD2The Bluetooth module is connected with the enabled end of the Bluetooth module, and the power supply of the Bluetooth module is connected with the V3.
The weighing display system comprises a pressure sensor group 9, a digital signal processing and control module 8 and a liquid crystal display 10; the power supply of the pressure sensor group 9 is connected with the V1, the pressure sensor group 9 is provided with a data transmission interface, the data transmission interface is connected with the input end of the digital signal processing and control module 8, the output of the pressure sensor group 9 is connected with the input of the third voltage detection circuit 11 as the input signal thereof, the power supply of the digital signal processing and control module is connected with the V2, the output of the digital signal processing and control module is connected with the liquid crystal display 10, and the output V of the third voltage detection circuit 11 is connected with the V2OD3Connected to VS across respective pull-up resistors R3, VOD3And the digital signal processing and control module and the enabling end of the liquid crystal display are respectively connected.
The energy collecting circuit collects energy from the rectifying antenna, stores the energy in the capacitor, and adjusts and outputs different voltages through the power management module to respectively provide electric energy for the Bluetooth communication system and the weighing display system.
As shown in fig. 1, the utility model provides a bluetooth electronic weighing system without battery includes an energy collecting system, a bluetooth communication system and a weighing display system; wherein in the energy harvesting system: input end V of rectifying antenna 1 and first voltage detection circuit 2inConnecting; when V isinIs lower than the threshold V of the first voltage detection circuit 2THThe output V of the first voltage detection circuit 2OD1Remains at a low level when VinIs higher than the threshold V of the first voltage detection circuit 2THThe output V of the first voltage detection circuit 2OD1Is converted to high level and is kept to VinIs lower than the falling threshold V of the first voltage detection circuit 2TLThe signal diagram is shown in fig. 2. Output terminal V of first voltage detection circuit 2OD1Is connected with a first output VC of the energy collecting circuit 3 through a pull-up resistor R1, and the first output VC of the energy collecting circuit 3 is a cold start output of the energy collecting circuit 3Output V of the first voltage detection circuit 2OD1And the first output VC of the energy collection circuit 3 is connected to both ends of the pull-up resistor R1, respectively. When the output end V of the first voltage detection circuit 2OD1When the voltage is at a high level, the voltage is pulled to be at the same level as VC through a pull-up resistor R1, and a capacitor C0 is used as a cold-start energy storage capacitor of the energy collection circuit 3; the other output VS of the energy collecting circuit 3 is an output end collected by adopting a maximum power tracking mode, the second output VS is connected with a capacitor C1, and the capacitor C1 is used as a main energy storage capacitor. Meanwhile, the second output terminal VS is connected to the input of the power management module 4, and since the level of the second output terminal VS is not adjusted and is not suitable for being used as a power supply of a load, the second output terminal VS is subjected to dc conversion by the power management module 4 and is converted into a first output V1, a second output V2 and a third output V3 suitable for a power supply of the load.
When there is no input signal, the output terminal V of the first voltage detection circuit 2OD1At low level, the energy harvesting circuit 3 stops working and does not consume static power. The input terminal of the first voltage detection circuit 2 uses the signal rectified by the rectifying antenna 1 as its power supply, so that the input of the rectifying antenna 1 can be continuously monitored without consuming system power consumption.
Input end V of communication antenna 5 and second voltage detection circuit 6 in Bluetooth communication systeminThe ground terminal of the second voltage detection circuit 6 is grounded, and the output V of the second voltage detection circuit 6OD2The output V of the second voltage detection circuit 6 is connected with VS through a pull-up resistor R2 and is connected with VS through a pull-up resistor R2 when communication is requiredOD2Pull up to VS as an enable signal for the bluetooth module 7; when the Bluetooth module 7 has no communication requirement, the output V of the second voltage detection circuit 6OD2And the Bluetooth module is switched off at a low level, and no power consumption is consumed at the moment. The input of the second voltage detection circuit 6 takes the rectified signal of the communication antenna 5 as its power supply, so that the communication antenna 5 can be continuously monitored without consuming system power consumption. The communication antenna 5 is connected to the bluetooth module 7 for signal transmission and reception. The power supply of the bluetooth module 13 is connected to the third output V3, the ground terminal of the bluetooth module 7 is grounded, and simultaneously, blueThe tooth module is provided with a data transmission interface, the data transmission interface receives a data processing result of the weighing display system, and data are transmitted to a communication terminal matched with the Bluetooth through Bluetooth communication.
The power supply of the pressure sensor group 9 in the weighing display system is connected with the first output V1, the pressure sensor group 9 is provided with a data transmission interface, the data transmission interface of the pressure sensor group 9 is connected with the input interface of the digital signal processing and control module 8, and the detection data of the pressure sensor group 9 is transmitted to the digital signal processing and control module 8. Analog output V of pressure sensor group 9PAn output V of the third voltage detection circuit 11 is connected to an input of the third voltage detection circuit 11 as an input signal of the third voltage detection circuit 11OD3Connected to pull-up resistor R3, connected to VS through pull-up resistor R3, and provided at output V of third voltage detection circuit 11OD3When the voltage is high level, V is pulled through a pull-up resistor R3OD3Pull to VS. The power supply of the digital signal processing and control module 8 is connected with the second output V2, the data transmission interface thereof receives the data sent by the pressure sensor group 9, the data is transmitted to the communication terminal paired with the bluetooth module after being processed, and meanwhile, the output of the digital signal processing and control module 8 is connected with the input of the liquid crystal display 10, and the processing result can be displayed in the liquid crystal display 10. When there is no weighing requirement, VPAt a low level, the output V of the third voltage detection circuit 11OD3Also low, when V is passedOD3The digital signal processing and control and the liquid crystal display 10 are turned off without consuming static power consumption.
Claims (6)
1. The electronic weighing device with the battery-free Bluetooth wireless communication is characterized by comprising an energy collecting system, a Bluetooth communication system and a weighing display system, wherein the energy collecting system comprises a rectifying antenna (1), a first voltage detection circuit (2), an energy collecting circuit (3) and a power management module (4); the rectifying antenna (1) is connected with the input end V of the first voltage detection circuit (2)inAn input of the energy collecting circuit (3), an output V of the first voltage detecting circuit (2)OD1Is connected with the enabling end of the energy collecting circuit (3),an output V of the first voltage detection circuit (2)OD1Is connected with a first output VC of the energy collecting circuit (3) through a pull-up resistor R1; the first output VC is connected with one end of a capacitor C0, the second output VS of the energy collecting circuit (3) is connected with one end of a capacitor C1 and the input of a power supply management module (4), and the outputs V1 and V2 of the power supply management module are connected with the electric energy input end of the weighing display system; the output V3 of the power management module is connected with the electric energy input end of the Bluetooth communication system; the other ends of the capacitor C0 and the capacitor C1 are grounded, and the grounding ends of the first voltage detection circuit (2), the energy collection circuit (3) and the power management module (4) are grounded;
in a bluetooth communication system: the input end of the Bluetooth module is connected with a communication antenna (5); in the weighing display system: the pressure sensor group (9) is connected with the input end of the digital signal processing and controlling module (8), and the input interface of the liquid crystal display (10) is connected with the output interface of the digital signal processing and controlling module (8); the digital signal processing and control module (8) is in communication connection with the Bluetooth module (7).
2. The batteryless Bluetooth wireless communication electronic weighing device according to claim 1, wherein a second voltage detection circuit (6) is further arranged in the Bluetooth communication system, and a communication antenna (5) in the Bluetooth communication system is connected with an input end V of the second voltage detection circuit (6)inAnd the input end of the Bluetooth module and the output V of the second voltage detection circuit (6)OD2The output V of the second voltage detection circuit (6) is connected with VS through a pull-up resistor R2OD2The Bluetooth module is connected with the enabled end of the Bluetooth module, and the power supply of the Bluetooth module is connected with the V3.
3. The batteryless bluetooth wireless communication electronic weighing device according to claim 2, characterized in that the second voltage detection circuit (6) is identical to the first voltage detection circuit (2).
4. The electronic weighing device with the function of wireless communication of the battery-free Bluetooth of claim 1, wherein a third voltage detection circuit (11) is arranged in the weighing display system, a power supply of the pressure sensor group (9) is connected with V1, and the pressure sensor group is connected with a voltage detection circuit of V1The output of the sensor group (9) is connected with the input of a third voltage detection circuit (11) as the input signal, the power supply of the digital signal processing and control module is connected with V2, and the output V of the third voltage detection circuit (11)OD3Connected to VS across respective pull-up resistors R3, VOD3And the digital signal processing and control module and the enabling end of the liquid crystal display are respectively connected.
5. The batteryless bluetooth wireless communication electronic weighing device according to claim 4, characterized in that the third voltage detection circuit (11) is identical to the first voltage detection circuit (2).
6. The batteryless Bluetooth wireless communication electronic weighing device of claim 1, wherein the voltage monitoring circuit comprises a high voltage monitoring circuit, a medium voltage monitoring circuit and a low voltage monitoring circuit, the V0H output of the high voltage monitoring circuit is connected with the control end of the medium voltage monitoring circuit, the V0M output of the medium voltage monitoring circuit is connected with the control end of the low voltage monitoring circuit, and the VOD1 output of the high voltage monitoring circuit, the VOD2 output of the medium voltage monitoring circuit and the VOD3 output of the low voltage monitoring circuit are all connected with the VOD1 output of the LX01 voltage monitoring circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022003104.1U CN212674276U (en) | 2020-09-14 | 2020-09-14 | Battery-free Bluetooth wireless communication electronic weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022003104.1U CN212674276U (en) | 2020-09-14 | 2020-09-14 | Battery-free Bluetooth wireless communication electronic weighing device |
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| Publication Number | Publication Date |
|---|---|
| CN212674276U true CN212674276U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022003104.1U Withdrawn - After Issue CN212674276U (en) | 2020-09-14 | 2020-09-14 | Battery-free Bluetooth wireless communication electronic weighing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067110A (en) * | 2020-09-14 | 2020-12-11 | 凌矽电子科技(东莞)有限公司 | Battery-free Bluetooth wireless communication electronic weighing device and weighing method |
-
2020
- 2020-09-14 CN CN202022003104.1U patent/CN212674276U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067110A (en) * | 2020-09-14 | 2020-12-11 | 凌矽电子科技(东莞)有限公司 | Battery-free Bluetooth wireless communication electronic weighing device and weighing method |
| CN112067110B (en) * | 2020-09-14 | 2024-07-09 | 凌矽电子科技(东莞)有限公司 | Battery-free Bluetooth wireless communication electronic weighing device and method |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210309 Effective date of abandoning: 20240709 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210309 Effective date of abandoning: 20240709 |