Torsion and drop detection module and power line

Abstract

The utility model discloses a torsion and drop detection module and a power line, and relates to the technical field of power supply protection, the torsion and drop detection module comprises a data acquisition unit, a data processing unit, an output unit and a power supply management unit; the output end of the data acquisition unit is connected with the input end of the data processing unit, the output end of the data processing unit is connected with the input end of the output unit, and the output end of the power management unit is connected with the input ends of the data acquisition unit, the data processing unit and the output unit and used for providing needed electric energy. The power line comprises a power plug, a live line, a zero line, a line card and an output line, and a torsion and drop detection module is arranged among the live line, the zero line and the line card or between the line card and the output line; when the equipment falls off or twists, a power supply is cut off quickly, and wire winding and worker sprain are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply protection, in particular to a twisting and falling detection module and a power line. Background Art

[0002] Currently, there is no power cord on the market that can cut off the power in time when the equipment accidentally falls or twists. In many application scenarios, such as when a high-power handheld power tool accidentally falls, if the power is not cut off in time, the wire will be entangled in the machine, which will cause greater danger; and when a high-power handheld power tool twists, if the power is not cut off in time, the worker may also be sprained.

[0003] Currently, there is no detection module on the market that can simultaneously detect the instantaneous twisting or falling of an object. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a twist and fall detection module and a power cord in view of the deficiencies of the background technology; when the equipment falls or twists, the power supply is quickly cut off to prevent the wires from being entangled and the workers from being sprained.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A torsion and fall detection module comprises a data acquisition unit, a data processing unit, an output unit and a power management unit; the output end of the data acquisition unit is connected to the input end of the data processing unit, the output end of the data processing unit is connected to the input end of the output unit, and the output end of the power management unit is respectively connected to the input ends of the data acquisition unit, the data processing unit and the output unit to provide required electric energy;

[0007] The data acquisition unit comprises a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a capacitor C6, a capacitor C8, a chip U3, and a 3.3V voltage terminal; the 3.3V voltage terminal is respectively connected to one end of the resistor R12, one end of the resistor R13, and one end of the resistor R14, the other end of the resistor R12 is connected to the pin 14 of the chip U3, the other end of the resistor R13 is connected to the pin 13 of the chip U3, the other end of the resistor R14 is connected to the pin 12 of the chip U3, and the pin 1 of the chip U3 is connected to the resistor R 15, the other end of the resistor R15 is connected to the 3.3V voltage terminal, the pin 4 of the chip U3 is connected to one end of the resistor R17, the other end of the resistor R17 is respectively connected to the pin 5 of the chip U3, one end of the capacitor C8 and the 3.3V voltage terminal, the other end of the capacitor C8 is connected to the pin 7 of the chip U3 and grounded, the pin 7, pin 10 and pin 11 of the chip U3 are respectively grounded, the pin 8 of the chip U3 is respectively connected to one end of the capacitor C6, one end of the resistor R16 and the 3.3V voltage terminal, and the other end of the resistor R16 is connected to the pin 9 of the chip U3.

[0008] As a further preferred solution of a torsion and fall detection module of the utility model, the output unit includes an output port NC, a resistor R1, and a resistor R2. Pin 1 of the output port NC is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to pin P5.4 of the data processing unit. Pin 2 of the output port NC is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to pin P1.7 of the data processing unit.

[0009] As a further preferred solution of a torsion and fall detection module of the utility model, the power management unit includes a chip VR, a capacitor C2, a capacitor C3, a VCC terminal, and a 3.3V voltage terminal. The interface 1 of the chip VR is respectively connected to one end of the capacitor C2 and one end of the capacitor C3, the other end of the capacitor C2 is respectively connected to the VCC terminal and the interface 2 of the chip VR, and the other end of the capacitor C3 is respectively connected to the 3.3V voltage terminal and the interface 3 of the chip VR.

[0010] As a further preferred solution of the twisting and falling detection module of the utility model, the chip U3 is a gyroscope chip.

[0011] As a further preferred solution of the twisting and falling detection module of the utility model, the chip VR adopts an LDO chip.

[0012] A power cord based on a torsion and drop detection module comprises a power plug, a live wire and a neutral wire, a line card, and an output line, and is characterized in that: a torsion and drop detection module is provided between the live wire and the neutral wire and the line card, the live wire and the neutral wire are connected to the torsion and drop detection module, and the drop and torsion detection module is connected to the line card; or a torsion and drop detection module is provided between the line card and the output line, the line card is connected to the torsion and drop detection module, and the drop and torsion detection module is connected to the output line.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] 1. When the torsion and drop detection module of the utility model is working, it will detect its own motion parameters in real time, including three-axis acceleration and three-axis angular velocity. The single-chip microcomputer processes the three-axis acceleration as a vector. If the sum of the vectors is approximately equal to the acceleration of gravity, it can be determined that the module has dropped, and the drop IO of the module will output a signal. The single-chip microcomputer processes the three-axis angular velocity as a vector. If the sum of the vectors is greater than a certain set value, it can be determined that the module has twisted, and the torsion IO of the module will output a signal. The signal output by this module is a True / False signal, which is compatible with most control systems.

[0015] 2. This power cord follows the basic form of the original power cord, i.e. the combination of plug, live wire, neutral wire, line card and output wire, and only adds a drop and twist protection module in the middle of the power cord, making this product compatible with most of the previous products on the market;

[0016] 3. Power cords: In production applications, many high-power handheld devices are at risk of falling. In the past, power cords could not cut off the power supply when the device fell, which often caused the wires to get tangled, leading to greater dangers. This technology can immediately cut off the power supply when the device falls, preventing the wires from getting tangled.

[0017] 4. In production applications, many high-power handheld devices have the risk of twisting. When the twisting force is too large, it is easy to cause injuries to workers. In the past, power cords could not cut off the power when the device was twisted. This technology can immediately cut off the power when the device is twisted, reducing the risk of worker injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a structural principle diagram of a torsion and fall detection module of the utility model;

[0020] Figure 2 It is a circuit diagram of the data acquisition unit of the utility model;

[0021] Figure 3 It is a circuit diagram of the data processing unit of the utility model;

[0022] Figure 4 It is a circuit diagram of the output unit of the utility model;

[0023] Figure 5 It is a circuit diagram of the power management unit of the utility model;

[0024] Figure 6 It is an electrical diagram of the power line of the utility model. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, a twist and fall detection module, such as Figure 1 As shown, it includes a data acquisition unit, a data processing unit, an output unit and a power management unit; the output end of the data acquisition unit is connected to the input end of the data processing unit, the output end of the data processing unit is connected to the input end of the output unit, and the output end of the power management unit is respectively connected to the input ends of the data acquisition unit, the data processing unit, and the output unit, for providing the required electric energy;

[0028] The power management unit converts the 3.6V to 24V DC power input to the module into 3.3V DC power to power the gyroscope and microcontroller.

[0029] The data acquisition unit monitors the motion parameters of the module and transmits the parameters to the microcontroller for calculation and processing.

[0030] The data processing unit, the single chip microcomputer calculates the motion parameters of the module through a series of calculations, obtains the motion state of the module, and outputs the motion state through the OUTPUT unit.

[0031] This system can be applied in many production and life scenarios and can play a great role. For example, the detection module can be applied to handheld power tools (such as high-power electric hammers) to shut down the motor in time when the power tool falls from a height, avoiding the danger of wire entanglement, or preventing workers from spraining their bodies when the drill bit is stuck.

[0032] The product consists of a power management unit (the unit consists of an LDO chip and some peripheral circuits, and can input a 3.6V~24V DC power supply), a data acquisition unit (the unit consists of a gyroscope chip and some peripheral circuits), a data processing unit (the unit consists of a single-chip microcomputer and some peripheral circuits) and an OUTPUT unit (the unit consists of some resistors and capacitors, including two output IOs: drop and torsion).

[0033] The power management unit provides stable power for other units; the data acquisition unit mainly collects the motion parameters of the module, such as three-axis acceleration and three-axis angular velocity, and transmits these parameters to the data processing unit; the data processing unit calculates the motion parameters, obtains the motion state of the module, and makes corresponding processing actions, which are output through the OUTPUT unit.

[0034] The module adopts SMT technology, and all components are mounted on a PCB. The module can be mounted on other PCBs in the form of SMD or soldered on other PCBs in the form of plug-in.

[0035] like Figure 2 As shown, the data acquisition unit includes a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a capacitor C6, a capacitor C8, a chip U3, and a 3.3V voltage terminal; the 3.3V voltage terminal is respectively connected to one end of the resistor R12, one end of the resistor R13, and one end of the resistor R14, the other end of the resistor R12 is connected to the pin 14 of the chip U3, the other end of the resistor R13 is connected to the pin 13 of the chip U3, the other end of the resistor R14 is connected to the pin 12 of the chip U3, and the pin 1 of the chip U3 is connected to the resistor One end of resistor R15, the other end of resistor R15 is connected to the 3.3V voltage end, pin 4 of chip U3 is connected to one end of resistor R17, the other end of resistor R17 is respectively connected to pin 5 of chip U3, one end of capacitor C8 and the 3.3V voltage end, the other end of capacitor C8 is connected to pin 7 of chip U3 and grounded, pin 7, pin 10 and pin 11 of chip U3 are respectively grounded, pin 8 of chip U3 is respectively connected to one end of capacitor C6, one end of resistor R16 and the 3.3V voltage end, and the other end of resistor R16 is connected to pin 9 of chip U3.

[0036] like Figure 3 and Figure 4As shown, the output unit includes an output port NC, a resistor R1, and a resistor R2. Pin 1 of the output port NC is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to pin P5.4 of the data processing unit. Pin 2 of the output port NC is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to pin P1.7 of the data processing unit.

[0037] like Figure 5 As shown, the power management unit includes a chip VR, a capacitor C2, a capacitor C3, a VCC terminal, and a 3.3V voltage terminal. Interface 1 of the chip VR is respectively connected to one end of the capacitor C2 and one end of the capacitor C3, the other end of the capacitor C2 is respectively connected to the VCC terminal and interface 2 of the chip VR, and the other end of the capacitor C3 is respectively connected to the 3.3V voltage terminal and interface 3 of the chip VR.

[0038] When the module is working, it will detect its own motion parameters in real time, including three-axis acceleration and three-axis angular velocity. The MCU processes the three-axis acceleration as a vector. If the sum of the vectors is approximately equal to the acceleration of gravity, it can be determined that the module has fallen, and the module's fall IO will output a signal. The MCU processes the three-axis angular velocity as a vector. If the sum of the vectors is greater than a certain set value, it can be determined that the module has twisted, and the module's twist IO will output a signal. The signal output by this module is a True / False signal, which is compatible with most control systems.

[0039] like Figure 6 As shown, a power cord based on a torsion and drop detection module includes a power plug, a live wire and a neutral wire, a line card, and an output line. A torsion and drop detection module is provided between the live wire, the neutral wire, and the line card. The live wire and the neutral wire are connected to the torsion and drop detection module, and the drop and torsion detection module is connected to the line card.

[0040] Among them, the plug obtains power and supplies power to the drop and torsion protection module;

[0041] Live wire and neutral wire, used for power transmission;

[0042] Line card, used to fix the connection between the power line and the equipment;

[0043] The drop and torsion protection module is used to detect the motion state of the equipment and give motion processing actions in time; the relay included therein is used to cut off the live wire or the neutral wire or the live wire and the neutral wire.

[0044] Output line, used to supply power to output devices;

[0045] The drop and twist protection module includes a drop and twist detection module and a relay. During normal operation, the relay is closed and the power supply is connected to the device normally; when the detection module detects that the device has dropped or twisted, it immediately outputs a signal to disconnect the relay, thereby cutting off the connection between the power supply and the device.

[0046] The drop and twist protection module is hard-wired to the line card (the line card can be before or after the module). The line card is used to secure the connection between the power cord and the device.

[0047] The utility model adopts the basic form of the original power cord, that is, the combination of a plug, a live wire, a neutral wire, a wire card, and an output wire, and only adds a drop and twist protection module in the middle section of the power cord, making this product compatible with most of the previous products on the market.

[0048] In production applications, many high-power handheld devices are at risk of falling. In the past, power cords could not cut off the power when the device fell, which often caused the wires to get tangled, leading to greater danger. This technology can immediately cut off the power when the device falls, preventing the wires from getting tangled.

[0049] In production applications, many high-power handheld devices have the risk of twisting. When the twisting force is too large, it is easy to cause injuries to workers. In the past, power cords could not cut off the power when the device twisted. This technology can immediately cut off the power when the device twists, reducing the risk of worker injury.

[0050] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that those terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0051] The above embodiments are only for explaining the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution according to the technical idea proposed by the utility model shall fall within the protection scope of the utility model. The above embodiments of the utility model are described in detail, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the utility model.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A torsion and fall detection module, characterized in that: It comprises a data acquisition unit, a data processing unit, an output unit and a power management unit; the output end of the data acquisition unit is connected to the input end of the data processing unit, the output end of the data processing unit is connected to the input end of the output unit, and the output end of the power management unit is respectively connected to the input ends of the data acquisition unit, the data processing unit and the output unit, so as to provide the required electric energy; The data acquisition unit includes a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a capacitor C6, a capacitor C8, a chip U3, and a 3.3V voltage terminal; The 3.3V voltage end is respectively connected to one end of resistor R12, one end of resistor R13, and one end of resistor R14. The other end of resistor R12 is connected to pin 14 of chip U3. The other end of resistor R13 is connected to pin 13 of chip U3. The other end of resistor R14 is connected to pin 12 of chip U3. Pin 1 of chip U3 is connected to one end of resistor R15. The other end of resistor R15 is connected to the 3.3V voltage end. Pin 4 of chip U3 is connected to one end of resistor R17. The other end of resistor R17 is respectively connected to pin 5 of chip U3, one end of capacitor C8 and the 3.3V voltage end. The other end of capacitor C8 is connected to pin 7 of chip U3 and grounded. Pin 7, pin 10, and pin 11 of chip U3 are respectively grounded. Pin 8 of chip U3 is respectively connected to one end of capacitor C6, one end of resistor R16 and the 3.3V voltage end. The other end of resistor R16 is connected to pin 9 of chip U3.

2. A torsion and fall detection module according to claim 1, characterized in that: The output unit includes an output port NC, a resistor R1, and a resistor R2. Pin 1 of the output port NC is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to pin P5.4 of the data processing unit. Pin 2 of the output port NC is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to pin P1.7 of the data processing unit.

3. A torsion and fall detection module according to claim 1, characterized in that: The power management unit includes a chip VR, a capacitor C2, a capacitor C3, a VCC terminal, and a 3.3V voltage terminal. Interface 1 of the chip VR is respectively connected to one end of the capacitor C2 and one end of the capacitor C3. The other end of the capacitor C2 is respectively connected to the VCC terminal and interface 2 of the chip VR. The other end of the capacitor C3 is respectively connected to the 3.3V voltage terminal and interface 3 of the chip VR.

4. A torsion and fall detection module according to claim 3, characterized in that: The chip U3 is a gyroscope chip.

5. A torsion and fall detection module according to claim 3, characterized in that: The chip VR adopts an LDO chip.

6. A power cord based on the torsion and drop detection module according to any one of claims 1 to 5, comprising a power plug, a live wire and a neutral wire, a wire card, and an output wire, characterized in that: A torsion and drop detection module is provided between the live wire and the neutral wire and the line card, the live wire and the neutral wire are connected to the torsion and drop detection module, and the drop and torsion detection module is connected to the line card; or a torsion and drop detection module is provided between the line card and the output line, the line card is connected to the torsion and drop detection module, and the drop and torsion detection module is connected to the output line.

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