A voltage acquisition device

Abstract

This invention proposes a voltage acquisition device, including a voltage measuring device (2), a Bluetooth module (3), and a microcontroller (5) placed in a protective box (1). The microcontroller is equipped with a real-time clock (502) with an E2PROM chip (503), and the E2PROM chip (503) is equipped with an ADC module. The voltage acquisition device can be remotely operated for short-distance debugging via Bluetooth connection. When the voltage exceeds the upper or lower limit during the voltage acquisition process, the external E2PROM chip is used to save the data. This invention allows staff to remotely view voltage data information through remote operation. When the detected voltage exceeds the upper limit or falls below the lower limit, the acquired voltage data information can be stored in a timely manner, so that the acquired data can still be saved when the power is off.

Description

Technical Field

[0001] This invention relates to the field of voltage measurement technology, and in particular to a voltage acquisition device. Background Technology

[0002] Voltage refers to the work done by an electric field force on a unit positive charge moving from one point to another in an electric field. Voltage measurement is an important part of electronic circuit measurement. Voltage is a basic parameter in electronic technology measurement and is the foundation of electronic measurement and the basis for the measurement of many electrical parameters. Voltage measurement equipment and systems are required when performing voltage measurement.

[0003] Most short-range voltage acquisition devices on the market currently use wired connections, making it impossible to operate the equipment remotely. This makes it inconvenient for staff to remotely view voltage data. Furthermore, it cannot store voltage data when the detected voltage exceeds the upper limit or falls below the lower limit in a timely manner, and the data cannot be saved even when the power is off. Summary of the Invention

[0004] This invention proposes a voltage acquisition device that allows operators to remotely view voltage data. When the detected voltage exceeds the upper limit or falls below the lower limit, the acquired voltage data can be stored in a timely manner, ensuring that the acquired data is preserved even when power is lost.

[0005] The present invention adopts the following technical solution.

[0006] A voltage acquisition device includes a voltage measuring device (2), a Bluetooth module (3), and a microcontroller (5) placed in a protective box (1). The microcontroller is equipped with a real-time clock (502) with an E2PROM chip (503) and an ADC module is installed on the E2PROM chip (503). The voltage acquisition device can be remotely operated for short-distance debugging via Bluetooth connection. When the voltage exceeds the upper or lower limit during the voltage acquisition process of the voltage acquisition device, the data is automatically saved using an external E2PROM chip.

[0007] The protective box (1) has a door (101) installed on the front by a hinge, a base (102) is fixedly installed on the bottom of the protective box (1), a wiring device (103) is installed on the bottom inside the protective box (1), a clamping frame (6) is installed on the inner wall of the protective box (1) by a sliding groove, and a voltage measuring device (2) and a Bluetooth module (3) are installed on the clamping frame (6).

[0008] A matrix keypad (201) is fixedly installed on the front side of the voltage measuring device (2), and a digital tube display (202) is fixedly installed on one side of the matrix keypad (201).

[0009] The Bluetooth module (3) has an antenna (301) mounted on one side in a rotatable manner, and is connected to the remote control platform (7) through the wireless signal of the antenna.

[0010] A battery (4) is mounted below the voltage measuring device (2) via a mounting bracket (401). A microcontroller (5) is fixedly mounted below the battery (4). A real-time clock (502) is fixedly mounted on the front of the microcontroller (5). An E2PROM chip (503) is fixedly mounted on one side of the front of the real-time clock (502), and an ADC module is fixedly mounted on one side of the E2PROM chip (503).

[0011] The clamping frame (6) includes a support plate (601), a clamping spring (602), and a clamping plate (603), with the clamping spring (602) having clamping plates (603) fixedly installed at both ends.

[0012] The bottom of the microcontroller (5) is equipped with heat sinks (501) at equal intervals.

[0013] A power socket (402) is fixedly installed on one side of the front of the battery (4), a charging dock (403) is fixedly installed on the other side of the front of the battery (4), and a power protector (404) is fixedly installed on one side of the charging dock (403).

[0014] The system flow sequence when the voltage acquisition device is working is as follows: device connection → voltage setting → clock setting → data acquisition → data processing and storage → Bluetooth remote control, including the following steps;

[0015] Step 1: The voltage acquisition device connects the sampling point to the voltage measuring device (2) through the connector (103), with a sampling range of 0-5V. The Bluetooth module (3) is connected to the microcontroller (5) through a wire.

[0016] Step 2: Set the upper and lower voltage limits via the matrix keypad (201), or via the Bluetooth module (3) through the remote control platform (7);

[0017] Step 3: Set the real-time clock (502) setting information via the matrix keypad (201), or set the real-time clock (502) setting information via the Bluetooth module (3) through the remote control platform (7);

[0018] Step 4: The voltage measuring device (2) collects the external voltage through the connector (103), and then sends the signal to the ADC module on the front of the microcontroller (5) for storage;

[0019] Step 5: When the microcontroller (5) calculates that the detection voltage exceeds the upper limit or falls below the lower limit, it stores the voltage information and clock information into the E2PROM chip (503);

[0020] Step 6: Retrieve the data information stored in the ADC module and the records stored in the E2PROM chip (503) through the matrix keypad (201), and display the voltage and clock information through the digital tube display (202), or remotely control the records stored in the E2PROM chip (503) and the data information stored in the ADC module through the Bluetooth module (3) via the remote control platform (7).

[0021] The Bluetooth module (3) is responsible for connecting to the remote control platform (7), receiving information from the remote control platform (7), and returning the information required by the remote control platform (7).

[0022] The E2PROM chip (503) is used to store the acquisition data and time information at the moment when the voltage is higher than the upper limit or lower than the lower limit during the voltage acquisition process, so as to prevent data loss caused by equipment failure or power failure.

[0023] The real-time clock (502) is used for timing. The real-time clock is connected to an external battery (4) through a power socket (402) so that it can still keep time normally when the external power supply is lost.

[0024] The charging dock (403) is used to charge the battery (4) to ensure the battery (4)'s battery life, and at the same time, the power protector (404) protects the battery (4).

[0025] The microcontroller (5) includes a power supply circuit and is used to process various transmitted data information during the voltage acquisition process of the voltage acquisition device.

[0026] This invention proposes a voltage acquisition device based on a microcontroller, comprising a microcontroller, a DS1302 clock circuit, a voltage acquisition device, an event data storage E2PROM circuit, a serial port Bluetooth module connection circuit, a digital tube display circuit, and a matrix keyboard circuit. By connecting the voltage acquisition device to the microcontroller, the microcontroller's internal ADC conversion circuit acquires the voltage. When the voltage is below the lower voltage limit VL or above the upper voltage limit VH, the event type and occurrence time are saved to the E2PROM. Simultaneously, the event type and occurrence time are sent to the paired device via Bluetooth serial port. The digital tube displays the current clock, sets the upper and lower voltage limits, and queries the stored event and time data via buttons, enabling better human-machine interface operation.

[0027] Compared with existing technologies, the beneficial effects of this invention are as follows: This Bluetooth-based voltage measurement device and system allows for setting the real-time clock information via a matrix keypad, or via a remote control platform through a Bluetooth module; the voltage meter collects external voltage data via a connector and sends the signal to the ADC module on the front of the microcontroller; when the microcontroller calculates that the detected voltage exceeds the upper limit or falls below the lower limit, it stores the voltage and clock information in an E2PROM chip, thus solving the problem of data not being saved when power is off; the voltage meter can monitor changes in power supply voltage or voltage changes at a specific monitoring point using a real-time clock; the remote control platform can remotely control the device via a Bluetooth module to view the records stored in the E2PROM chip and the data stored in the ADC module; this solution combines Bluetooth technology with a real-time clock and E2PROM chip storage, solving the problem of short-range debugging equipment being unable to be remotely operated. Attached Figure Description

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] Appendix Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Appendix Figure 2 This is a partial structural diagram of the voltage measuring device of the present invention;

[0031] Appendix Figure 3 This is a partial structural diagram of the Bluetooth module of the present invention;

[0032] Appendix Figure 4 This is a partial structural diagram of the battery of the present invention;

[0033] Appendix Figure 5 This is a schematic diagram of a partial structure of the microcontroller of the present invention;

[0034] Appendix Figure 6 This is a schematic diagram of the voltage measurement system of the present invention.

[0035] In the diagram: 1. Protective box; 101. Box door; 102. Base; 103. Connector; 2. Voltage measuring device; 201. Matrix keypad; 202. Digital tube display; 3. Bluetooth module; 301. Antenna; 4. Battery; 401. Mounting bracket; 402. Power socket; 403. Charging base; 404. Power protector; 5. Microcontroller; 501. Heat sink; 502. Real-time clock; 503. E2PROM chip; 6. Clamping frame; 601. Tray; 602. Clamping spring; 603. Clamping plate; 7. Remote control platform. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] As shown in the figure, a voltage acquisition device includes a voltage measuring device 2, a Bluetooth module 3, and a microcontroller 5 placed inside a protective box 1. A real-time clock 502 with an E2PROM chip 503 is fixed to the microcontroller, and an ADC module is fixed to the E2PROM chip 503. The voltage acquisition device can be remotely operated for short-distance debugging via Bluetooth connection. When the voltage exceeds the upper or lower limit during the voltage acquisition process, the device automatically saves the data using an external E2PROM chip.

[0040] The protective box 1 has a door 101 installed on the front via a hinge, a base 102 fixedly installed on the bottom of the protective box 1, a wiring device 103 installed at the bottom inside the protective box 1, and a clamping frame 6 installed on the inner wall of the protective box 1 via a sliding groove. A voltage measuring device 2 and a Bluetooth module 3 are installed at the clamping frame 6.

[0041] A matrix keypad 201 is fixedly installed on the front side of the voltage measuring device 2, and a digital tube display 202 is fixedly installed on one side of the matrix keypad 201.

[0042] An antenna 301 is rotatably mounted on one side of the Bluetooth module 3, and it connects to the remote control platform 7 via the wireless signal of the antenna.

[0043] A battery 4 is mounted below the voltage measuring device 2 via a mounting bracket 401. A microcontroller 5 is fixedly mounted below the battery 4. A real-time clock 502 is fixedly mounted on the front of the microcontroller 5. An E2PROM chip 503 is fixedly mounted on one side of the front of the real-time clock 502, and an ADC module is fixedly mounted on one side of the E2PROM chip 503.

[0044] The clamping frame 6 includes a support plate 601, a clamping spring 602, and a clamping plate 603. The clamping spring 602 is fixedly mounted with the clamping plate 603 at both ends.

[0045] The bottom of the microcontroller 5 is equipped with heat sinks 501 at equal intervals;

[0046] A power socket 402 is fixedly installed on one side of the front of the battery 4, a charging dock 403 is fixedly installed on the other side of the front of the battery 4, and a power protector 404 is fixedly installed on one side of the charging dock 403.

[0047] The system flow sequence when the voltage acquisition device is working is as follows: device connection → voltage setting → clock setting → data acquisition → data processing and storage → Bluetooth remote control, including the following steps;

[0048] Step 1: The voltage acquisition device connects the sampling point to the voltage measuring device 2 via the connector 103. The sampling range is 0-5V. The Bluetooth module 3 is connected to the microcontroller 5 via a wire.

[0049] Step 2: Set the upper and lower voltage limits via the matrix keypad 201, or via the Bluetooth module 3 through the remote control platform 7;

[0050] Step 3: Set the setting clock information of the real-time clock 502 via the matrix keypad 201, or set the setting clock information of the real-time clock 502 via the Bluetooth module 3 via the remote control platform 7.

[0051] Step 4: The voltage measuring device 2 acquires the external voltage through the connector 103, and then sends the signal to the ADC module on the front of the microcontroller 5 for storage.

[0052] Step 5: When the microcontroller 5 calculates that the detected voltage exceeds the upper limit or falls below the lower limit, it stores the voltage information and clock information into the E2PROM chip 503;

[0053] Step 6: Retrieve the data information stored in the ADC module and the records stored in the E2PROM chip 503 through the matrix keypad 201, and display the voltage and clock information through the digital tube display 202, or remotely control the records stored in the E2PROM chip 503 and the data information stored in the ADC module through the Bluetooth module 3 via the remote control platform 7.

[0054] The Bluetooth module 3 is responsible for connecting to the remote control platform 7, receiving information from the remote control platform 7, and returning the information required by the remote control platform 7.

[0055] The E2PROM chip 503 is used to store the acquired data and the time information at the moment when the voltage is higher than the upper limit or lower than the lower limit during the voltage acquisition process, so as to prevent data loss caused by equipment failure or power failure.

[0056] The real-time clock 502 is used for timing. The real-time clock is connected to an external battery 4 through a power socket 402 so that it can still keep time normally when the external power supply is lost.

[0057] The charging dock 403 is used to charge the battery 4 to ensure the battery 4's battery life, and at the same time, the power protector 404 protects the battery 4.

[0058] The microcontroller 5 includes a power supply circuit and is used to process various transmitted data information during the voltage acquisition process of the voltage acquisition device.

[0059] In this example, the remote operation platform includes cloud-based management equipment and on-site personnel terminals at the voltage acquisition equipment. The terminals are connected to the voltage acquisition equipment via Bluetooth and to the cloud management equipment via a remote communication link, enabling remote management personnel to remotely control the voltage acquisition equipment and collaborate with on-site personnel. On-site personnel only need to bring the terminals close to the voltage acquisition equipment, which helps to avoid the risk of electric shock.

[0060] In this example, the clamping spring 602 elastically resets the clamping plate 603, giving both clamping plates 603 an elastic clamping force. The support plate 601 lifts the bottom of the Bluetooth module 3, and the two clamping plates 603 elastically clamp the voltage measuring device 2 and the Bluetooth module 3, facilitating quick installation. Simultaneously, the Bluetooth module 3 connects to the remote control platform 7 via the antenna 301, enabling it to receive and return information needed by the remote control platform 7. The battery 4 connects to the power socket 40. 2 is connected to the matrix keyboard 201, digital tube display 202, microcontroller 5, Bluetooth module 3, voltage measuring device 2, real-time clock 502, and E2PROM chip 503 respectively, and can supply power to them so that they can still operate normally when power is off. The protective box 1 and the door 101 cooperate to form a closed whole, which can protect its internal structure. At the same time, the protective box 1 is supported by the base 102 to ensure the stability of the protective box 1. Meanwhile, the heat sink 501 can increase the heat dissipation area of ​​the microcontroller 5 and improve the heat dissipation effect of the microcontroller 5.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A voltage acquisition device, characterized in that: The device includes a voltage measuring device (2), a Bluetooth module (3), and a microcontroller (5) housed in a protective enclosure (1). The microcontroller is equipped with a real-time clock (502) with an E2PROM chip (503) installed on it, and an ADC module is installed on the E2PROM chip (503). The voltage acquisition device can be remotely operated via Bluetooth for short-distance debugging. When the voltage exceeds the upper or lower limit during the voltage acquisition process, the device automatically saves the data using an external E2PROM chip. The protective box (1) has a door (101) installed on the front by a hinge, a base (102) is fixedly installed on the bottom of the protective box (1), a wiring device (103) is installed at the bottom inside the protective box (1), a clamping frame (6) is installed on the inner wall of the protective box (1) by a sliding groove, and a voltage measuring device (2) and a Bluetooth module (3) are installed at the clamping frame (6); A matrix keyboard (201) is fixedly installed on the front side of the voltage measuring device (2), and a digital tube display (202) is fixedly installed on one side of the matrix keyboard (201). An antenna (301) is rotatably mounted on one side of the Bluetooth module (3), and is connected to the remote control platform (7) via the wireless signal of the antenna. A storage battery (4) is mounted below the voltage measuring device (2) via a mounting bracket (401). A microcontroller (5) is fixedly mounted below the storage battery (4). A real-time clock (502) is fixedly mounted on the front of the microcontroller (5). An E2PROM chip (503) is fixedly mounted on one side of the front of the real-time clock (502), and an ADC module is fixedly mounted on one side of the E2PROM chip (503). The clamping frame (6) includes a support plate (601), a clamping spring (602), and a clamping plate (603), with the clamping spring (602) having the clamping plate (603) fixedly installed at both ends; The bottom of the microcontroller (5) is equipped with heat sinks (501) at equal intervals; A power socket (402) is fixedly installed on one side of the front of the battery (4), a charging dock (403) is fixedly installed on the other side of the front of the battery (4), and a power protector (404) is fixedly installed on one side of the charging dock (403). The system flow sequence when the voltage acquisition device is working is as follows: device connection → voltage setting → clock setting → data acquisition → data processing and storage → Bluetooth remote control, including the following steps; Step 1: The voltage acquisition device connects the sampling point to the voltage measuring device (2) through the connector (103), with a sampling range of 0-5V. The Bluetooth module (3) is connected to the microcontroller (5) through a wire. Step 2: Set the upper and lower voltage limits via the matrix keypad (201), or via the Bluetooth module (3) through the remote control platform (7); Step 3: Set the setting clock information of the real-time clock (502) via the matrix keypad (201), or set the setting clock information of the real-time clock (502) via the Bluetooth module (3) through the remote control platform (7); Step 4: The voltage measuring device (2) collects the external voltage through the connector (103), and then sends the signal to the ADC module on the front of the microcontroller (5) for storage; Step 5: When the microcontroller (5) calculates that the detection voltage exceeds the upper limit or falls below the lower limit, it stores the voltage information and clock information into the E2PROM chip (503); Step 6: Retrieve the data information stored in the ADC module and the records stored in the E2PROM chip (503) through the matrix keypad (201), and display the voltage and clock information through the digital tube display (202), or remotely control the records stored in the E2PROM chip (503) and the data information stored in the ADC module through the Bluetooth module (3) via the remote control platform (7).

2. The voltage acquisition device according to claim 1, characterized in that: The Bluetooth module (3) is responsible for connecting to the remote control platform (7), receiving information from the remote control platform (7), and returning the information required by the remote control platform (7).

3. The voltage acquisition device according to claim 1, characterized in that: The E2PROM chip (503) is used to store the acquired data and the time information at the moment when the voltage is higher than the upper limit or lower than the lower limit during the voltage acquisition process, so as to prevent data loss caused by equipment failure or power failure.

4. A voltage acquisition device according to claim 1, characterized in that: The real-time clock (502) is used for timing. The real-time clock is connected to an external battery (4) through a power socket (402) so that it can still keep time normally when the external power supply is lost.

5. A voltage acquisition device according to claim 1, characterized in that: The charging dock (403) is used to charge the battery (4) to ensure the battery (4)'s battery life, and at the same time, the power protector (404) protects the battery (4).

6. A voltage acquisition device according to claim 1, characterized in that: The microcontroller (5) includes a power supply circuit and is used to process various transmitted data information during the voltage acquisition process of the voltage acquisition device.

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