Micro-energy read-write device
By designing a micro-energy reading and writing device including power module, control module and reading module, the ability to view predetermined information locally is realized, the problem of network dependence in the prior art is solved, and the security and authenticity of information are enhanced .
Patent Information
- Application Number
- CN202310784060.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-28
- Publication Date
- 2024-12-31
AI Technical Summary
Existing micro-energy reading and writing devices need to be connected to the Internet to read predetermined information and cannot be viewed locally. Invisible code technology requires special equipment to determine the authenticity of the information. RFID and NFC carrier encryption is easy to be cracked and copied.
A micro-energy reading and writing device is designed, including a power supply module, a control module and a reading module. The power supply module provides the first voltage to make the control module generate predetermined information, and the reading module provides the second voltage receiving information to realize hardware reading and writing. Avoid network queries.
It realizes the ability to view predetermined information locally, solves the problem of network dependence, and realizes the reading and writing of information through hardware, enhancing the authenticity and security of information.
Smart Images
Figure CN119227702A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the application field of micro-energy devices, and in particular, to a micro-energy reading and writing device. Background Art
[0002] At present, in the field of micro-energy systems, especially in the field of fast-moving consumer goods, such as the reading and writing of wine information, it is generally through relatively mature two-dimensional code technology, invisible code technology, RFID (Radio Frequency Identification), NFC (Near Field Communication), etc. Two-dimensional code technology and invisible code technology belong to information identification technology. The end consumer can only read the information after destroying the product. It is impossible to distinguish the authenticity in the product circulation link, and hard identification cannot be achieved. In addition, the invisible code technology requires the use of special equipment to determine the authenticity of the information. RFID and NFC belong to carrier encryption. The product circulation link is very easy to be cracked and tampered, and the product is easy to be imitated. At present, pre-packaged foods of beverages with an alcohol content of greater than or equal to 10% can be exempted from labeling the shelf life, which requires the entire information reading and writing system to maintain operation for more than ten years or data preservation for more than ten years. The existing anti-counterfeiting bottle caps and bottle cap activation and anti-counterfeiting methods based on security chip password algorithms use NFC security tags, etc., and need to query information through the Internet.
[0003] Therefore, there is an urgent need for a micro-powered reading and writing device that can query information without being connected to the Internet. Summary of the invention
[0004] The main purpose of the present application is to provide a micro-power reading and writing device to solve the problem in the prior art that the micro-power reading and writing device needs to be connected to the Internet to read predetermined information.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a micro-power reading and writing device is provided, which includes a power supply module, a control module and a reading module, wherein the power supply module is used to provide a first voltage to the control module; the control module is electrically connected to the power supply module, and the control module is used to generate predetermined information when the power supply module provides the first voltage; the reading module is electrically connected to the control module, and the reading module is used to provide a second voltage to the control module and receive the predetermined information.
[0006] Furthermore, the power module includes a battery unit, the battery unit includes a button battery and a ball switch, wherein one end of the button battery is electrically connected to the control module; one end of the ball switch is grounded, and the other end of the ball switch is electrically connected to the other end of the button battery.
[0007] Furthermore, the power supply module includes an energy collection unit, and the energy collection unit is used to convert other forms of energy into electrical energy to provide the first voltage to the control module.
[0008] Furthermore, the energy collection unit includes a generator, a plurality of first switch sub-units connected in parallel, and a first capacitor, wherein the generator includes a plurality of output ends; one of the first switch sub-units includes two diodes connected in series, and the point between the two diodes of each of the first switch sub-units is electrically connected to the plurality of output ends one by one; the input end of the first capacitor is electrically connected to the first switch sub-unit, and the output end of the first capacitor is electrically connected to the control module.
[0009] Further, the control module includes a first voltage dividing unit, a first switch unit, a second voltage dividing unit, a second switch unit and a voltage stabilizing unit, wherein the first voltage dividing unit is electrically connected to the power supply module; the first input end of the first switch unit is electrically connected to the output end of the first voltage dividing unit, and the second input end of the first switch unit is electrically connected to the power supply module; the second voltage dividing unit is electrically connected to the reading module; the first input end of the second switch unit is electrically connected to the output end of the second voltage dividing unit, and the second input end of the second switch unit is electrically connected to the reading module; the first end of the voltage stabilizing unit is electrically connected to the output end of the first switch unit, and is electrically connected to the output end of the second switch unit.
[0010] Furthermore, the control module also includes a micro control unit and a memory unit, wherein a first end of the micro control unit is electrically connected to a second end of the voltage stabilizing unit, a second end of the micro control unit is electrically connected to a first input end of the first switch unit, a third end of the micro control unit is electrically connected to a first input end of the second switch unit, a fourth end of the micro control unit is electrically connected to the reading module, and the micro control unit is used to send the predetermined information when the power module provides the first voltage; the memory unit is electrically connected to the micro control unit, and the memory unit is also electrically connected to the second end of the voltage stabilizing unit, and the memory unit is used to receive and store the predetermined information.
[0011] Further, the first switch unit includes a first MOS (Metal-Oxide-Semiconductor) tube, a second MOS tube, a first diode and a second diode, wherein the drain of the first MOS tube is electrically connected to the power module, the source of the first MOS tube is electrically connected to the source of the second MOS tube, the gate of the first MOS tube is electrically connected to the gate of the second MOS tube, and the gate of the first MOS tube is electrically connected to the output end of the first voltage divider unit, the anode of the first diode is electrically connected to the source of the first MOS tube, the cathode of the first diode is electrically connected to the drain of the first MOS tube, the anode of the second diode is electrically connected to the source of the second MOS tube, and the gate of the second MOS tube is electrically connected to the output end of the first voltage divider unit. The cathode of the diode is electrically connected to the drain of the second MOS tube; the second switch unit includes a third MOS tube, a fourth MOS tube, a third diode and a fourth diode, wherein the drain of the fourth MOS tube is electrically connected to the reading module, the source of the fourth MOS tube is electrically connected to the source of the third MOS tube, the gate of the fourth MOS tube is electrically connected to the gate of the third MOS tube, and the gate of the fourth MOS tube is electrically connected to the output end of the second voltage dividing unit, the anode of the third diode is electrically connected to the source of the third MOS tube, the cathode of the third diode is electrically connected to the drain of the third MOS tube, the anode of the fourth diode is electrically connected to the source of the fourth MOS tube, and the cathode of the fourth diode is electrically connected to the drain of the fourth MOS tube.
[0012] Further, the first voltage-dividing unit includes a first resistor and a second resistor connected in series, and a voltage-dividing point formed between the first resistor and the second resistor is the output end of the first voltage-dividing unit; the second voltage-dividing unit includes a third resistor and a fourth resistor connected in series, and a voltage-dividing point formed between the third resistor and the fourth resistor is the output end of the second voltage-dividing unit.
[0013] Further, the reading module includes a coupling unit and a communication unit, wherein the coupling unit is electrically connected to the control module, and the coupling unit is used to provide the second voltage to the control module; the communication unit is electrically connected to the coupling unit, and the communication unit and the coupling unit are used together to receive the predetermined information.
[0014] Further, the coupling unit includes a second capacitor, two parallel second switch sub-units and a series resonant circuit, wherein the output end of the second capacitor is electrically connected to the control module; the second switch sub-unit is electrically connected to the input end of the second capacitor, and one second switch sub-unit includes two diodes connected in series; the series resonant circuit includes an inductor and a third capacitor, the second end of the inductor is electrically connected to the first end of the third capacitor, and the first end of the inductor and the second end of the third capacitor are respectively electrically connected to the points between the two diodes of the two second switch sub-units in a one-to-one correspondence.
[0015] Further, the communication unit includes a third switch subunit and a fourth switch subunit, wherein the third switch subunit includes a fourth capacitor, a fifth resistor, a fifth MOS tube and a fifth diode, wherein the first end of the fourth capacitor is electrically connected to the first end of the inductor, the first end of the fifth resistor is electrically connected to the second end of the fourth capacitor, the drain of the fifth MOS tube is electrically connected to the second end of the fifth resistor, the gate of the fifth MOS tube is electrically connected to the control module, the anode of the fifth diode is electrically connected to the source of the fifth MOS tube, and the cathode of the fifth diode is electrically connected to the drain of the fifth MOS tube; The fourth switch subunit includes a fifth capacitor, a sixth resistor, a sixth MOS tube and a sixth diode, wherein the first end of the fifth capacitor is electrically connected to the second end of the third capacitor, the first end of the sixth resistor is electrically connected to the second end of the fifth capacitor, the drain of the sixth MOS tube is electrically connected to the second end of the sixth resistor, the gate of the sixth MOS tube is electrically connected to the control module, the anode of the sixth diode is electrically connected to the source of the sixth MOS tube, the cathode of the sixth diode is electrically connected to the drain of the sixth MOS tube, the source of the sixth MOS tube is electrically connected to the source of the fifth MOS tube, and is grounded.
[0016] Applying the technical solution of the present application, the micro-power reading and writing device includes a power module, a control module and a reading module, wherein the power module is used to provide a first voltage to the control module; the control module is electrically connected to the power module, and the control module is used to generate predetermined information when the power module provides the first voltage; the reading module is electrically connected to the control module, and the reading module is used to provide a second voltage to the control module and receive the predetermined information. The micro-power reading and writing device uses the power module to provide the first voltage to the control module so that the control module generates the predetermined information, and uses the reading module to provide the second voltage to the control module to read the predetermined information, so that the reading and writing of the predetermined information is realized through hardware, so that there is no need to view the predetermined information through networking, and the predetermined information in the device can be viewed locally, thereby solving the problem that the micro-power reading and writing device in the prior art needs to be connected to the Internet to read the predetermined information. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0018] Figure 1 A schematic diagram of the structure of a micro-power reading and writing device according to an embodiment of the present application is shown;
[0019] Figure 2 A schematic structural diagram of a micro-power reading and writing device according to another embodiment of the present application is shown;
[0020] Figure 3 A schematic diagram of a switch device of a battery unit according to an embodiment of the present application is shown;
[0021] Figure 4 A schematic diagram of a switch device of an energy harvesting unit according to an embodiment of the present application is shown;
[0022] Figure 5 A schematic diagram of a switch device of an energy harvesting unit according to another embodiment of the present application is shown.
[0023] The above drawings include the following reference numerals:
[0024] 10. Power module; 20. Control module; 30. Reading module; 101. Battery unit; 102. Energy collection unit; 103. First switch subunit; 201. First voltage divider unit; 202. First switch unit; 203. Second voltage divider unit; 204. Second switch unit; 205. Voltage stabilizing unit; 206. Micro control unit; 207. Memory unit; 301. Coupling unit; 302. Communication unit; 303. Second switch subunit; 304. Series resonant circuit; 305. Third switch subunit; 306. Fourth switch subunit; 401. Cylinder; 402. Pipe; 403. White ball; 404. Wiring; 501. Fastener; 502. Gear. DETAILED DESCRIPTION
[0025] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0027] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intermediate elements. Moreover, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.
[0028] As introduced in the background technology, in the prior art, a micro-power reading and writing device needs to be connected to the Internet to read predetermined information. To solve the above problem, an embodiment of the present application provides a micro-power reading and writing device.
[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0030] In a typical embodiment of the present application, a micro-power reading and writing device is provided, such as Figure 1 As shown, the micro-energy reading and writing device includes a power module 10, a control module 20 and a reading module 30, wherein the power module 10 is used to provide a first voltage to the control module 20; the control module 20 is electrically connected to the power module 10, and the control module 20 is used to generate predetermined information when the power module 10 provides the first voltage; the reading module 30 is electrically connected to the control module 20, and the reading module 30 is used to provide a second voltage to the control module 20 and receive the predetermined information.
[0031] The micro-power reading and writing device comprises a power module, a control module and a reading module, wherein the power module is used to provide a first voltage to the control module; the control module is electrically connected to the power module, and the control module is used to generate predetermined information when the power module provides the first voltage; the reading module is electrically connected to the control module, and the reading module is used to provide a second voltage to the control module and receive the predetermined information. The micro-power reading and writing device uses the power module to provide the first voltage to the control module so that the control module generates the predetermined information, and uses the reading module to provide the second voltage to the control module to read the predetermined information, so that the reading and writing of the predetermined information is realized through hardware, so that the predetermined information does not need to be checked through the network, and the predetermined information in the device can be checked locally, thereby solving the problem that the micro-power reading and writing device in the prior art needs to be connected to the network to read the predetermined information.
[0032] In practical applications, the above-mentioned micro-energy reading and writing device can be used in the field of fast-moving consumer goods, such as alcoholic beverages, cosmetics, and other places where bottle caps are needed. The opening of the bottle cap is used to enable the power module to provide the first voltage to the control module, thereby generating predetermined information. The above-mentioned predetermined information may include factory information, write data, and the number of times the device is opened, etc. The reading module can then receive the predetermined information, so that other reading devices can be used to read the predetermined information without the need to read through the Internet. By reading the above-mentioned predetermined information, problems such as counterfeiting, cross-selling, after-sales, and accountability can be solved.
[0033] In one embodiment of the present application, Figure 2 As shown, the control module 20 includes a first voltage dividing unit 201, a first switch unit 202, a second voltage dividing unit 203, a second switch unit 204 and a voltage stabilizing unit 205, wherein the first voltage dividing unit 201 is electrically connected to the power module 10; the first input end of the first switch unit 202 is electrically connected to the output end of the first voltage dividing unit 201, and the second input end of the first switch unit 202 is electrically connected to the power module 10; the second voltage dividing unit 203 is electrically connected to the reading module 30; the first input end of the second switch unit 204 is electrically connected to the output end of the second voltage dividing unit 203, and the second input end of the second switch unit 204 is electrically connected to the reading module 30; the first end of the voltage stabilizing unit 205 is electrically connected to the output end of the first switch unit 202, and is electrically connected to the output end of the second switch unit 204. The first voltage dividing unit can make the power module pass through the first switch unit with a suitable first voltage, and the second voltage dividing unit can make the reading module pass through the second switch unit with a suitable second voltage.
[0034] In order to quickly generate and store the predetermined information so that the predetermined information can be read, in another embodiment of the present application, Figure 2 As shown, the control module 20 further includes a micro control unit 206 and a memory unit 207, wherein a first end of the micro control unit 206 is electrically connected to a second end of the voltage stabilizing unit 205, a second end of the micro control unit 206 is electrically connected to a first input end of the first switch unit 202, a third end of the micro control unit 206 is electrically connected to a first input end of the second switch unit 204, a fourth end of the micro control unit 206 is electrically connected to the reading module 30, and the micro control unit 206 is used to send the predetermined information when the power module provides the first voltage; the memory unit 207 is electrically connected to the micro control unit 206, and the memory unit 207 is also electrically connected to a second end of the voltage stabilizing unit 205, and the memory unit 207 is used to receive and store the predetermined information.
[0035] Specifically, the above-mentioned microcontroller unit can be an MCU, and the memory unit can be an MRAM (Magnetoresistive Random Access Memory). MRAM has low power consumption, fast read and write speed, no need for erase operation, anti-interference, anti-radiation, and long data retention time. When the above-mentioned power module provides the above-mentioned first voltage, the microcontroller unit in the control module drives the MCU to work via a voltage stabilizing circuit (such as LDO). The MCU records the write information and the number of writes (the number of writes is expressed as the number of starts) through SPI communication via CE (enable pin), SCLK (timing pin), SI (write pin), and SO (read pin).
[0036] In another embodiment of the present application, Figure 2As shown, the first switch unit 202 includes a first MOS transistor Q1, a second MOS transistor Q2, a first diode D1 and a second diode D2, wherein the drain of the first MOS transistor Q1 is electrically connected to the power module 10, the source of the first MOS transistor Q1 is electrically connected to the source of the second MOS transistor Q2, the gate of the first MOS transistor Q1 is electrically connected to the gate of the second MOS transistor Q2, and the gate of the first MOS transistor Q1 is electrically connected to the output end of the first voltage divider unit 201, the anode of the first diode D1 is electrically connected to the source of the first MOS transistor Q1, the cathode of the first diode D1 is electrically connected to the drain of the first MOS transistor Q1, the anode of the second diode D2 is electrically connected to the source of the second MOS transistor Q2, and the cathode of the second diode D2 is electrically connected to the drain of the second MOS transistor Q2. The second switch unit 204 includes a third MOS transistor Q3, a fourth MOS transistor Q4, a third diode D3 and a fourth diode D4, wherein the drain of the fourth MOS transistor Q4 is electrically connected to the reading module 30, the source of the fourth MOS transistor Q4 is electrically connected to the source of the third MOS transistor Q3, the gate of the fourth MOS transistor Q4 is electrically connected to the gate of the third MOS transistor Q3, and the gate of the fourth MOS transistor Q4 is electrically connected to the output end of the second voltage dividing unit 203, the anode of the third diode D3 is electrically connected to the source of the third MOS transistor Q3, the cathode of the third diode D3 is electrically connected to the drain of the third MOS transistor Q3, the anode of the fourth diode D4 is electrically connected to the source of the fourth MOS transistor Q4, and the cathode of the fourth diode D4 is electrically connected to the drain of the fourth MOS transistor Q4.
[0037] Specifically, the first voltage divider unit is used to divide the first voltage, the second voltage divider unit is used to divide the second voltage, and the first switch unit and the second switch unit are two groups of back-to-back MOS tubes, which are used to determine whether the voltage provided to the control module is provided by the power module or the reading module.
[0038] In order to divide the first voltage and the second voltage, in another embodiment of the present application, Figure 2 As shown, the first voltage-dividing unit 201 includes a first resistor R1 and a second resistor R2 connected in series, and the voltage-dividing point formed between the first resistor R1 and the second resistor R2 is the output end of the first voltage-dividing unit 201; the second voltage-dividing unit 203 includes a third resistor R3 and a fourth resistor R4 connected in series, and the voltage-dividing point formed between the third resistor R3 and the fourth resistor R4 is the output end of the second voltage-dividing unit 203.
[0039] In another embodiment of the present application, Figure 2As shown, the power module 10 includes a battery unit 101, and the battery unit 101 includes a button battery H1 and a ball switch SW1, wherein one end of the button battery H1 is electrically connected to the control module 20; one end of the ball switch SW1 is grounded, and the other end of the ball switch SW1 is electrically connected to the other end of the button battery H1. The button battery is very small, which can reduce the volume of the entire micro-energy device.
[0040] In a specific embodiment, the micro-energy device can be installed in the bottle cap, and the ball switch triggers the battery unit to provide a first voltage to the control module. The first voltage can be a write voltage, that is, enter the write mode. After the bottle cap is opened, Figure 3 As shown, Figure 3 The middle cylinder 401 will slide down due to gravity, and the white ball 403 in the subsequent pipe 402 will slide, conducting Figure 3 The two wires 404 at the bottom of the middle pipe 402. This process is similar Figure 2 The middle ball switch SW1 is closed, and the button battery is connected at this moment. Figure 2 The first MOS tube Q1 and the second MOS tube Q2 in the control module enable the voltage stabilizing unit LDO to work, thereby enabling the microcontroller unit MCU to work. The microcontroller unit MCU measures the voltage level brought by the voltage division of the first resistor R1 and the second resistor R2, so that the microcontroller unit MCU writes data to the memory MRAM, indicating that the writing is completed.
[0041] In another embodiment of the present application, Figure 2 As shown, the power module 10 includes an energy collection unit 102, which is used to convert other forms of energy into electrical energy to provide the first voltage to the control module. In practical applications, as time goes by, the button battery in the built-in battery unit may fail, so the energy collection unit can be used to convert other forms of energy into electrical energy.
[0042] Other forms of energy can be quickly converted into electrical energy through a generator. In another embodiment of the present application, Figure 2As shown, the energy collection unit 102 includes a generator H2, a plurality of first switch subunits 103 connected in parallel, and a first capacitor C1, wherein the generator H2 includes a plurality of output terminals; one of the first switch subunits 103 includes two diodes connected in series, and the points between the two diodes of each of the first switch subunits 103 are electrically connected to the plurality of output terminals one by one; the input terminal of the first capacitor C1 is electrically connected to the first switch subunit 103, and the output terminal of the first capacitor C1 is electrically connected to the control module 20. The energy collection unit is a self-generating rectifier. The generator and the first switch subunit constitute a rectifier module, and the alternating current can be rectified to charge the first capacitor, so that the first capacitor can provide a stable voltage to the control module.
[0043] In a specific embodiment, after opening the bottle cap, Figure 4 As shown in the figure, the fastener 501 of the half gear will be ejected by the spring, so that the gear 502 rotates along the black arrow, thereby driving the generator, and the alternating current generated by the generator is Figure 2 The multiple parallel first switch sub-units in the circuit are rectified, and the electric energy is stored in the first capacitor C1, and then turned on. Figure 2 The first MOS tube and the second MOS tube in the control module make the voltage stabilizing unit LDO work, so that the micro control unit MCU works, and the micro control unit MCU measures the falling edge level brought by the voltage division of the first resistor R1 and the second resistor R2, so that the micro control unit MCU writes data to the memory MRAM, indicating that the writing is completed.
[0044] In another specific embodiment, the rotating bottle cap is as follows Figure 5 As shown, the gear 502 rotates along the black arrow, and the rotation of the gear 502 drives the generator, and the alternating current generated by the generator is Figure 2 The multiple parallel first switch sub-units in the circuit are rectified, and the electric energy is stored in the first capacitor C1, and then turned on. Figure 2 The first MOS tube and the second MOS tube in the control module make the voltage stabilizing unit LDO work, so that the micro control unit MCU works, and the micro control unit MCU measures the falling edge level brought by the voltage division of the first resistor R1 and the second resistor R2, so that the micro control unit MCU writes data to the memory MRAM, indicating that the writing is completed.
[0045] In another embodiment of the present application, Figure 2As shown, the reading module 30 includes a coupling unit 301 and a communication unit 302, wherein the coupling unit 301 is electrically connected to the control module 20, and the coupling unit 301 is used to provide the second voltage to the control module 20; the communication unit 302 is electrically connected to the coupling unit 301, and the communication unit 302 and the coupling unit 301 are used together to receive the predetermined information. The second voltage is provided to the control module through the coupling unit, so that the predetermined information in the control module can be obtained.
[0046] In order to stably provide the second voltage to the control module, in another embodiment of the present application, Figure 2 As shown, the coupling unit 301 includes a second capacitor C2, two second switch sub-units 303 connected in parallel, and a series resonant circuit 304, wherein the output end of the second capacitor C2 is electrically connected to the control module 20; the second switch sub-unit 303 is electrically connected to the input end of the second capacitor C2, and one of the second switch sub-units 303 includes two diodes connected in series; the series resonant circuit 304 includes an inductor L1 and a third capacitor C3, the second end of the inductor L1 is electrically connected to the first end of the third capacitor C3, and the first end of the inductor L1 and the second end of the third capacitor C3 are electrically connected to the points between the two diodes of the two second switch sub-units 303 in a one-to-one correspondence.
[0047] In practical applications, the second voltage provided by the coupling unit may be external coil coupling energy, thereby starting the control module.
[0048] In another embodiment of the present application, Figure 2As shown, the communication unit 302 includes a third switch subunit 305 and a fourth switch subunit 306, wherein the third switch subunit 305 includes a fourth capacitor C4, a fifth resistor R5, a fifth MOS transistor Q5 and a fifth diode D5, wherein a first end of the fourth capacitor C4 is electrically connected to a first end of the inductor L1, a first end of the fifth resistor R5 is electrically connected to a second end of the fourth capacitor C4, a drain of the fifth MOS transistor Q5 is electrically connected to a second end of the fifth resistor R5, a gate of the fifth MOS transistor Q5 is electrically connected to the control module 20, an anode of the fifth diode D5 is electrically connected to a source of the fifth MOS transistor Q5, and a cathode of the fifth diode D5 is electrically connected to a drain of the fifth MOS transistor Q5. Electrical connection; the fourth switch subunit 306 includes a fifth capacitor C5, a sixth resistor R6, a sixth MOS tube Q6 and a sixth diode D6, wherein a first end of the fifth capacitor C5 is electrically connected to a second end of the third capacitor C3, a first end of the sixth resistor R6 is electrically connected to a second end of the fifth capacitor C5, a drain of the sixth MOS tube Q6 is electrically connected to a second end of the sixth resistor R6, a gate of the sixth MOS tube Q6 is electrically connected to the control module 20, an anode of the sixth diode D6 is electrically connected to a source of the sixth MOS tube Q6, a cathode of the sixth diode D6 is electrically connected to a drain of the sixth MOS tube Q6, a source of the sixth MOS tube is electrically connected to a source of the fifth MOS tube, and is grounded.
[0049] Specifically, Figure 2 As shown, the MCU is driven to work through external coupling energy via a voltage stabilizing circuit (such as LDO), and the MCU records and reads predetermined information through SPI communication via CE (enable pin), SCLK (timing pin), SI (write pin), and SO (read pin). The signal carrying the predetermined information is superimposed on the carrier through the fifth MOS tube Q5 and the sixth MOS tube Q6 in the communication unit, and is subsequently read by the reading device.
[0050] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
[0051] The micro-power reading and writing device comprises a power module, a control module and a reading module, wherein the control module is electrically connected to the power module, the power module is used to provide a first voltage to the control module, and the control module is used to generate predetermined information when the power module provides the first voltage; the reading module is electrically connected to the control module, and the reading module is used to provide a second voltage to the control module and receive the predetermined information. The micro-power reading and writing device uses the power module to provide the first voltage to the control module so that the control module generates the predetermined information, and uses the reading module to provide the second voltage to the control module to read the predetermined information, so that the reading and writing of the predetermined information is realized through hardware, so that the predetermined information does not need to be checked through the network, and the predetermined information in the device can be checked locally, thereby solving the problem that the micro-power reading and writing device in the prior art needs to be connected to the network to read the predetermined information.
[0052] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A micro-power reading and writing device, characterized in that: The micro-power reading and writing device includes a power module, a control module and a reading module, wherein the power module is used to provide a first voltage to the control module; the control module is electrically connected to the power module, and the control module is used to generate predetermined information when the power module provides the first voltage; the reading module is electrically connected to the control module, and the reading module is used to provide a second voltage to the control module and receive the predetermined information.
2. The micro-power reading and writing device according to claim 1, characterized in that: The power module includes a battery unit, and the battery unit includes: A button battery, one end of which is electrically connected to the control module; A ball switch, one end of which is grounded, and the other end of which is electrically connected to the other end of the button battery.
3. The micro-power reading and writing device according to claim 1, characterized in that: The power module comprises: An energy collection unit, wherein the energy collection unit is used to convert other forms of energy into electrical energy to provide the first voltage to the control module.
4. The micro-power reading and writing device according to claim 3, characterized in that: The energy collection unit comprises: a generator including a plurality of output terminals; A plurality of first switch subunits connected in parallel, wherein one of the first switch subunits comprises two diodes connected in series, and a point between the two diodes of each first switch subunit is electrically connected to the plurality of output terminals in a one-to-one correspondence; A first capacitor, wherein an input end of the first capacitor is electrically connected to the first switch sub-unit, and an output end of the first capacitor is electrically connected to the control module.
5. The micro-power reading and writing device according to claim 1, characterized in that: The control module comprises: A first voltage dividing unit, electrically connected to the power module; a first switch unit, wherein a first input end of the first switch unit is electrically connected to an output end of the first voltage dividing unit, and a second input end of the first switch unit is electrically connected to the power module; A second voltage dividing unit, electrically connected to the reading module; a second switch unit, wherein a first input end of the second switch unit is electrically connected to an output end of the second voltage dividing unit, and a second input end of the second switch unit is electrically connected to the reading module; A voltage stabilizing unit, wherein a first end of the voltage stabilizing unit is electrically connected to an output end of the first switch unit and is electrically connected to an output end of the second switch unit.
6. The micro-power reading and writing device according to claim 5, characterized in that: The control module also includes: a micro control unit, wherein a first end of the micro control unit is electrically connected to a second end of the voltage stabilizing unit, a second end of the micro control unit is electrically connected to a first input end of the first switch unit, a third end of the micro control unit is electrically connected to a first input end of the second switch unit, and a fourth end of the micro control unit is electrically connected to the reading module, and the micro control unit is used to send the predetermined information when the power module provides the first voltage; A memory unit, the memory unit is electrically connected to the micro control unit, the memory unit is also electrically connected to the second end of the voltage stabilizing unit, and the memory unit is used to receive and store the predetermined information.
7. The micro-power reading and writing device according to claim 6, characterized in that: The first switch unit includes a first MOS tube, a second MOS tube, a first diode and a second diode, wherein the drain of the first MOS tube is electrically connected to the power module, the source of the first MOS tube is electrically connected to the source of the second MOS tube, the gate of the first MOS tube is electrically connected to the gate of the second MOS tube, and the gate of the first MOS tube is electrically connected to the output end of the first voltage divider unit, the anode of the first diode is electrically connected to the source of the first MOS tube, the cathode of the first diode is electrically connected to the drain of the first MOS tube, the anode of the second diode is electrically connected to the source of the second MOS tube, and the cathode of the second diode is electrically connected to the drain of the second MOS tube; The second switch unit includes a third MOS tube, a fourth MOS tube, a third diode and a fourth diode, wherein the drain of the fourth MOS tube is electrically connected to the reading module, the source of the fourth MOS tube is electrically connected to the source of the third MOS tube, the gate of the fourth MOS tube is electrically connected to the gate of the third MOS tube, and the gate of the fourth MOS tube is electrically connected to the output end of the second voltage divider unit, the anode of the third diode is electrically connected to the source of the third MOS tube, the cathode of the third diode is electrically connected to the drain of the third MOS tube, the anode of the fourth diode is electrically connected to the source of the fourth MOS tube, and the cathode of the fourth diode is electrically connected to the drain of the fourth MOS tube.
8. The micro-power reading and writing device according to claim 6, characterized in that: The first voltage dividing unit includes a first resistor and a second resistor connected in series, and a voltage dividing point formed between the first resistor and the second resistor is an output end of the first voltage dividing unit; The second voltage dividing unit includes a third resistor and a fourth resistor connected in series, and a voltage dividing point formed between the third resistor and the fourth resistor is an output end of the second voltage dividing unit.
9. The micro-power reading and writing device according to claim 1, characterized in that: The reading module comprises: a coupling unit, electrically connected to the control module, and configured to provide the second voltage to the control module; A communication unit is electrically connected to the coupling unit, and the communication unit and the coupling unit are used together to receive the predetermined information.
10. The micro-power reading and writing device according to claim 9, characterized in that: The coupling unit comprises: a second capacitor, wherein an output end of the second capacitor is electrically connected to the control module; Two second switch sub-units connected in parallel, the second switch sub-units being electrically connected to the input end of the second capacitor, and one of the second switch sub-units comprising two diodes connected in series; The series resonant circuit comprises an inductor and a third capacitor, wherein the second end of the inductor is electrically connected to the first end of the third capacitor, and the first end of the inductor and the second end of the third capacitor are respectively electrically connected to points between the two diodes of the two second switch subunits in a one-to-one correspondence.
11. The micro-power reading and writing device according to claim 10, characterized in that: The communication unit comprises: The third switch subunit includes a fourth capacitor, a fifth resistor, a fifth MOS tube and a fifth diode, wherein the first end of the fourth capacitor is electrically connected to the first end of the inductor, the first end of the fifth resistor is electrically connected to the second end of the fourth capacitor, the drain of the fifth MOS tube is electrically connected to the second end of the fifth resistor, the gate of the fifth MOS tube is electrically connected to the control module, the anode of the fifth diode is electrically connected to the source of the fifth MOS tube, and the cathode of the fifth diode is electrically connected to the drain of the fifth MOS tube; The fourth switch subunit includes a fifth capacitor, a sixth resistor, a sixth MOS tube and a sixth diode, wherein the first end of the fifth capacitor is electrically connected to the second end of the third capacitor, the first end of the sixth resistor is electrically connected to the second end of the fifth capacitor, the drain of the sixth MOS tube is electrically connected to the second end of the sixth resistor, the gate of the sixth MOS tube is electrically connected to the control module, the anode of the sixth diode is electrically connected to the source of the sixth MOS tube, the cathode of the sixth diode is electrically connected to the drain of the sixth MOS tube, the source of the sixth MOS tube is electrically connected to the source of the fifth MOS tube, and is grounded.