UWB-based electric power overhaul field personnel management and control device

Abstract

The utility model provides an electric power overhaul field personnel management and control device based on UWB, and belongs to the technical field of electric power overhaul. Comprising a butt-joint assembly, the butt-joint assembly comprises a shell and a butt-joint seat, a sliding groove is formed in the butt-joint seat 20, the butt-joint seat is slidably connected with a magnet through the sliding groove, a magnetic proximity switch is fixedly installed in the shell, and the magnet is used for being attracted to one side of the magnetic proximity switch to enable a circuit of the butt-joint assembly to be connected; the positioning assembly comprises a UWB (Ultra Wideband) positioning chip arranged on the circuit board, and the UWB positioning chip is connected with an antenna; the acquisition module acquires position information of the positioning assembly in real time; the sensing component is used for acquiring whether the device is separated from field personnel; and the controller is used for controlling the positioning assembly to work when the circuit assembly is connected and is used for sending an abnormal separation signal. The system has the advantages that the UWB positioning chip and the high-gain antenna are adopted, real-time positioning with centimeter-level precision is realized in a complex environment, and the reliability of personnel position information is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric power overhauls technical field, concretely relates to a kind of electric power overhauls field personnel management and control device based on UWB. BACKGROUND

[0002] Active power and reactive power are included in grid load power, reactive power is not to keep electrical equipment normal operation, but to establish and maintain magnetic field in power equipment, since the active power of electrical equipment at grid user end is not constant consumption, therefore, to stabilize local voltage, reactive power compensation device needs to be set in grid to supplement reactive power, user end electrical equipment connected to grid can work under rated voltage, and phase modifier is a kind of reactive power compensation device, which can enhance the stability of extra-high voltage AC / DC system, meet the demand of large-scale power transmission of DC, effectively solve the problem of reactive voltage stability caused by large-scale access of extra-high voltage cross-region DC transmission and wind and light new energy to grid.

[0003] In order to ensure the normal operation of phase modifier, phase modifier station needs to regularly overhaul and maintain phase modifier, and in electric power overhaul operation, safety management and control of field personnel is very important.

[0004] Traditional personnel positioning technology such as GPS or Bluetooth has problems such as low positioning accuracy and signal easy to be disturbed in indoor or complex environment, which is difficult to meet the high-precision positioning demand of electric power overhaul scene.

[0005] In addition, the positioning device worn by existing personnel often adopts mechanical buckle or band fixing method, which has problems such as easy to loosen and fall off and unable to detect the separation state of equipment and personnel in real time. When equipment accidentally falls off or personnel arbitrarily take off, the system cannot timely sense, leading to invalid safety monitoring and possibly causing safety accident. UTILITY MODEL CONTENT

[0006] In order to solve the deficiency of prior art, the utility model provides a kind of electric power overhauls field personnel management and control device based on UWB.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] The device includes: a docking assembly comprising a housing and a docking seat, the docking seat having a groove on which a magnet is slidably connected; a magnetic proximity switch fixedly installed inside the housing, the magnet being used to attract the magnetic proximity switch to one side, thus connecting the docking assembly circuit; a positioning assembly, the housing containing a circuit board, the positioning assembly including a UWB positioning chip mounted on the circuit board, the UWB positioning chip being connected to an antenna; used to acquire the positioning assembly's position information in real time; a sensing assembly, including a motion sensor, used to detect whether the device has separated from personnel on site; a controller, mounted on the circuit board, used to control the positioning assembly to operate when the circuit assembly is connected, and to send an abnormal separation signal when the docking assembly separates or the sensing assembly detects that the motion has stopped for a set time; and a battery assembly, located inside the housing, used for power supply.

[0009] Furthermore, the motion sensor is an IMU sensor, used to detect the motion state of the device.

[0010] Furthermore, the docking seat includes a cover shell and a bottom shell, the sliding groove is disposed on the cover shell, and the bottom of the cover shell is provided with a receiving groove.

[0011] Furthermore, a first strap hole is provided on the bottom of the bottom shell near one side; a second strap hole is provided on one side of the shell.

[0012] Furthermore, a spring is fixedly installed on the inner wall of the magnetic proximity switch, and an iron plate is fixedly installed on one end of the spring. A conductive plate is provided inside the magnetic proximity switch, and the magnet attracts the iron plate to make the iron plate contact the conductive plate and connect the circuit.

[0013] Furthermore, a sliding post is fixedly installed at the bottom of the magnet, and one end of the sliding post passes through a groove into the interior of the docking seat. Two sets of the sliding post and the groove are provided.

[0014] A docking plate is fixedly installed at the bottom of the housing. A plug is provided on one side of the docking plate. The plug includes a hook-shaped protrusion and an elastic insertion rod. The hook-shaped protrusion includes a guide insertion end and a self-locking end. The inclination of the self-locking end is greater than that of the guide insertion end. The plug is inserted between two sets of sliding columns, and the hook-shaped protrusion is engaged with the surface of the sliding column.

[0015] Furthermore, the sensing component also includes a contact sensor: including a pressure-sensitive diaphragm installed at the bottom of the housing, the bottom of the housing having a pressure-sensitive hole, an elastic pad fixedly installed at the bottom of the pressure-sensitive diaphragm, the elastic pad passing through the pressure-sensitive hole into the interior of the housing, and the mating plate abutting against the elastic pad.

[0016] Further, the battery assembly includes a battery compartment arranged at the bottom of the shell, a battery is mounted in the battery compartment, and a hatch cover is detachably mounted at the compartment opening of the battery compartment.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. UWB positioning chip and high-gain antenna are adopted to realize real-time positioning with centimeter-level precision in complex environment and ensure the reliability of personnel position information.

[0019] 2. The motion state of the device is dynamically monitored through the IMU sensor, and the magnetic proximity switch and the sliding slot magnet are combined to design a double-detection mechanism through magnetic attraction conduction circuit. When the device is separated from the personnel or is stationary for too long, the controller triggers an abnormal alarm immediately when the personnel falls or the device is removed, thereby reducing the risk of false positives and false negatives.

[0020] 3. The elastic self-locking structure of the hook-shaped plug and the sliding column simplifies the disassembly and assembly steps and facilitates quick wearing. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in detail below in combination with the drawings.

[0022] Figure 1 : The structure schematic diagram of the utility model embodiment 1 in solid;

[0023] Figure 2 : The structure schematic diagram of the utility model Figure 1 in section;

[0024] Figure 3 : The structure schematic diagram of the utility model embodiment 1 in the shell inside;

[0025] Figure 4 : The structure schematic diagram of the utility model embodiment 1 in the docking seat decomposition;

[0026] Figure 5 : The structure schematic diagram of the utility model embodiment 1 in the docking seat and the magnet decomposition;

[0027] Figure 6 : The structure schematic diagram of the utility model embodiment 1 in the contact sensor and the shell decomposition;

[0028] Figure 7 : The structure schematic diagram of the utility model embodiment 1 in the battery compartment decomposition.

[0029] Wherein, 10, shell; 101, second belt hole; 11, circuit board; 12, UWB positioning chip; 13, antenna; 20, docking seat; 201, sliding groove; 202, cover shell; 203, bottom shell; 204, accommodating groove; 205, first belt hole; 21, sliding groove; 22, magnet; 23, magnetic proximity switch; 231, spring; 232, iron sheet; 233, conductive sheet; 24, sliding column; 25, docking plate; 26, plug; 261, hook-shaped protrusion; 262, elastic plug rod; 30, contact sensor; 31, pressure sensitive film; 32, pressure hole; 33, elastic pad; 40, battery compartment; 41, battery; 42, hatch cover; 50, loudspeaker. DETAILED DESCRIPTION

[0030] In order to better understand the present application, the content of the present application will be further clearly described below in conjunction with examples, but the protection content of the present application is not limited to the following examples only. In the following description, a large number of specific details are given in order to provide a more complete understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details.

[0031] Embodiment 1: refer to Figures 1-6 The UWB-based power maintenance site personnel management and control device of the embodiment comprises:

[0032] The docking assembly comprises a shell 10 and a docking seat 20. The shell 10 of the docking assembly is made of high-strength ABS plastic by injection molding. The docking seat 20 is provided with a sliding groove 201. The docking seat 20 is connected with a magnet 22 through the sliding groove 201. The magnet 22 is used to be adsorbed on one side of the magnetic proximity switch 23 to make the circuit of the docking assembly connected.

[0033] The positioning assembly comprises a UWB positioning chip 12 arranged on the circuit board 11. The UWB positioning chip 12 of the positioning assembly is made of a Decawave DW3000 module and is connected with a high-gain ceramic antenna 13 through an IPEX interface. The UWB positioning chip 12 is used to obtain the position information of the positioning assembly in real time. The UWB positioning can realize high-precision personnel tracking in a complex environment.

[0034] The sensing assembly comprises a motion sensor 21. An IMU module of the motion sensor 21 is connected with the circuit board 11 through an I2C bus. An STM32F405RG chip is selected as the controller. The motion stop threshold is set to be less than 0.1g in continuous 30 minutes acceleration change. The sensing assembly is used to obtain whether the device is separated from the site personnel.

[0035] A controller is installed on the circuit board 11 to control the positioning assembly when the circuit assembly is connected, to send an abnormal separation signal when the docking assembly is separated or the sensing assembly senses that the motion stops for a set time;

[0036] A battery assembly is arranged inside the shell 10 to supply power.

[0037] Referring to Figure 3 The motion sensor 21 is an IMU sensor, specifically an MPU-6050 six-axis motion processing chip, installed at the geometric center of the circuit board 11. The accelerometer range of the chip is set to ±8g, and the gyroscope range is ±500° / s, with the attitude angle calculated in real time by a digital motion processor DMP. The device motion state is detected, and when the X / Y / Z three-axis acceleration standard deviation is continuously detected for 5 minutes below 0.05g, an abnormal signal is triggered, and the device is determined to be in a stationary state,

[0038] The UWB chip 12 of the positioning assembly sends pulse signals through the antenna 13, and the base station calculates the centimeter-level position coordinates after receiving. The motion sensor 21 of the sensing assembly continuously monitors the acceleration and angular velocity of the device, and when the motion stops for more than a set time of 1 minute, or the magnet 22 is separated to cause the circuit to be disconnected, the controller triggers an alarm signal and issues an alarm through the loudspeaker 50.

[0039] Referring to Figures 1-6 The docking seat 20 includes a cover shell 202 and a bottom shell 203, and a sliding groove 201 is arranged on the cover shell 202. The bottom of the cover shell 202 is provided with a receiving groove 204.

[0040] Referring to Figures 4-5 The battery assembly includes a battery compartment 40 arranged at the bottom of the shell 10, and a battery 41 is installed inside the battery compartment 40. A hatch 42 is detachably installed at the opening of the battery compartment 40. The battery compartment 40 is fixed with the hatch 42 by screws and embedded with a waterproof rubber ring. The battery 41 is a rechargeable lithium polymer battery connected to the circuit board 11 through contacts.

[0041] Referring to Figure 2 The inner core of the magnetic proximity switch 23 is fixedly installed with a spring 231, one end of the spring 231 is fixedly installed with an iron sheet 232, and the inside of the magnetic proximity switch 23 is provided with a conductive sheet 233. The magnet 22 is used to attract the iron sheet 232 to make the iron sheet 232 contact the conductive sheet 233 to make the circuit connected. The shell 10 and the docking seat 20 of the docking assembly are connected by the sliding groove 201 to realize the sliding connection of the magnet 22. When the device is worn, the shell 10 and the docking seat 20 are installed on the two sides of the zipper of the reflective vest respectively, and the reflective vest is put on, then the zipper is pulled, the magnet 22 slides along the sliding groove 201 to the magnetic proximity switch 23, the magnetic attraction makes the iron sheet 232 contact the conductive sheet 233, and the circuit is conducted Figures 2-3, the magnet 22 extends out of the docking seat 20 after moving, the extended part is attached to the reflective vest zipper, the zipper cannot be pulled down, the reflective vest zipper is blocked, the separation of the device and the personnel can be reflected in time, and the on-site personnel can be better supervised.

[0042] Referring to Figures 4-5 , the bottom of the magnet 22 is fixedly installed with a sliding column 24, the bottom of the sliding column 24 is provided with a limiting boss, the magnet 22 is prevented from falling out of the sliding groove 201, one end of the sliding column 24 penetrates into the inside of the docking seat 20 through the sliding groove 201, and the sliding column 24 and the sliding groove 201 are both provided with two groups;

[0043] The bottom of the shell 10 is fixedly installed with a docking plate 25, one side of the docking plate 25 is provided with a plug 26, the plug 26 comprises a hook-shaped protrusion 261 and an elastic plug rod 262, the hook-shaped protrusion 261 comprises a guide insertion end and a self-locking end, the elastic plug rod 262 of the plug 26 is made of nylon material, the guide insertion end of the hook-shaped protrusion 261 is a 30° inclined plane, and the self-locking end is a 60° inclined plane; the inclination of the self-locking end is greater than that of the guide insertion end, the plug 26 is inserted between the two groups of sliding columns 24, the hook-shaped protrusion 261 is clamped on the surface of the sliding column 24, and when the plug 26 is inserted into the gap between the sliding columns 24, the hook-shaped protrusion 261 is elastically deformed to clamp the sliding column 24, so that self-locking is realized.

[0044] Referring to Figure 6 , the sensing assembly further comprises a contact sensor 30, the contact sensor 30 comprises a pressure-sensitive film 31 installed at the bottom of the shell 10, the bottom of the shell 10 is provided with a pressure sensing hole 32, the bottom of the pressure-sensitive film 31 is fixedly installed with an elastic pad 33, the elastic pad 33 penetrates out of the inside of the shell 10 through the pressure sensing hole 32, the docking plate 25 abuts against the elastic pad 33, the pressure-sensitive film 31 is model FSR402, is attached to the bottom of the shell 10, and the elastic pad 33 is made of silica gel material. When the docking plate 25 is inserted, the elastic pad 33 is extruded, the pressure-sensitive film 31 outputs a contact signal to the controller, and the connection state is cooperatively judged with the signal of the magnetic proximity switch 23.

[0045] Beneficial effects:

[0046] 1. When the device is worn, first, the shell 10 and the docking seat 20 are respectively installed on both sides of the reflective vest zipper, the reflective vest is worn, and the zipper is pulled; the magnet 22 slides along the sliding groove 201 to the magnetic proximity switch 23, the magnetic attraction force makes the iron sheet 232 contact with the conductive sheet 233, the controller receives the signal and controls the UWB positioning chip 12 to be powered on and started, the magnet 22 extends out of the docking seat 20 after moving, the extended part is attached to the reflective vest zipper, the zipper cannot be pulled down, the magnet 22 after moving blocks the reflective vest zipper from being pulled, and whether the reflective vest is taken off is monitored.

[0047] 2. Antenna 13 continuously transmits UWB pulse signals. After receiving the signals, the base station calculates the personnel's position. IMU sensor 21 monitors the device's acceleration changes in real time. If the device remains stationary for more than 1 minute or magnet 22 accidentally detaches, the controller triggers an alarm. UWB+IMU dual-mode detection achieves dual verification of motion status and position. At the same time, the IMU sensor can monitor the abnormal state of maintenance personnel in real time, such as electric shock or unconsciousness. When an abnormal state occurs, it is convenient to carry out timely rescue.

[0048] Example 2: Example 2 is a further improvement based on Example 1. See [link / reference] Figure 7 This embodiment discloses a UWB-based on-site personnel management device for power maintenance. A first strap hole 205 is provided on the bottom of the base 203 near one side; a second strap hole 101 is provided on one side of the housing 10. The first strap hole 205 is located on the side of the base 203, and the second strap hole 101 is located on the side of the housing 10. The two are connected by an elastic webbing to form a ring-shaped wearing structure. The webbing length is adjustable to fit different wrist or waist sizes. When the device is not used in conjunction with reflective clothing, it can be fixed to the body of on-site personnel using the elastic webbing.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A UWB-based power maintenance site personnel management and control device, characterized in that, The utility model relates to a kind of device for monitoring the safety of personnel in the field, including: Docking assembly, including shell (10) and docking seat (20), the sliding slot (201) is provided on the docking seat (20), the magnet (22) is slidably connected with the sliding slot (201), the inside of the shell (10) is fixedly installed with magnetic proximity switch (23), the magnet (22) is used to be adsorbed on the side of magnetic proximity switch (23) to make docking assembly circuit intercommunication; Positioning assembly, the inside of the shell (10) is provided with circuit board (11), the positioning assembly includes UWB positioning chip (12) arranged on the circuit board (11), the UWB positioning chip (12) is connected with antenna (13), for real-time acquisition of the position information of positioning assembly; Perception component, including motion sensor (21), for obtaining whether device is separated from on-site personnel; Controller, installed on the circuit board (11), for controlling positioning assembly to work when circuit assembly intercommunication, for sending abnormal departure signal when docking assembly separates or perception component senses that motion stop length reaches set value; Battery assembly, arranged in the inside of shell (10), for power supply. 2.The UWB-based electric power maintenance site personnel management device of claim 1, wherein, The motion sensor (21) is IMU sensor, for detecting device motion state. 3.The UWB-based electric power maintenance site personnel management device of claim 1, wherein, The docking seat (20) includes cover shell (202) and bottom shell (203), the sliding slot (201) is arranged on the cover shell (202), and the bottom of the cover shell (202) is provided with accommodating groove (204). 4.The UWB-based electric power maintenance site personnel management device of claim 3, wherein, The first belt penetrating hole (205) is arranged on the bottom of the bottom shell (203) close to one side;One side of the shell (10) is provided with second belt penetrating hole (101). 5.The UWB-based electric power maintenance site personnel management device according to claim 1, wherein, The inner core of the magnetic proximity switch (23) is fixedly installed with spring (231), one end of the spring (231) is fixedly installed with iron sheet (232), the inside of the magnetic proximity switch (23) is provided with conducting strip (233), and the magnet (22) is used to adsorb the iron sheet (232) to make the iron sheet (232) contact with the conducting strip (233) circuit intercommunication. 6.The UWB-based electric power maintenance site personnel management device of claim 2, wherein, The bottom of the magnet (22) is fixedly installed with sliding column (24), one end of the sliding column (24) passes through the sliding slot (201) and enters the inside of the docking seat (20), and the sliding column (24) and the sliding slot (201) are both provided with two groups; The bottom of the shell (10) is fixedly installed with docking plate (25), one side of the docking plate (25) is provided with plug (26), the plug (26) includes hook-shaped protrusion (261) and elastic plug rod (262), the hook-shaped protrusion (261) includes guide insertion end and self-locking end, the inclination of the self-locking end is greater than that of the guide insertion end, the plug (26) is inserted between the two groups of sliding column (24), and the hook-shaped protrusion (261) is clamped on the surface of sliding column (24). 7.The UWB-based electric power maintenance site personnel management device of claim 6, wherein, The perception assembly further comprises a contact sensor (30), the contact sensor (30) comprising a pressure-sensitive film (31) mounted on the bottom of the shell (10), the bottom of the shell (10) being provided with a pressure-sensitive hole (32), the bottom of the pressure-sensitive film (31) being fixedly mounted with an elastic pad (33), the elastic pad (33) penetrating the inside of the shell (10) through the pressure-sensitive hole (32), the abutting plate (25) abutting against the elastic pad (33). 8.The UWB-based electric power maintenance site personnel management device of claim 1, wherein, The battery assembly comprises a battery compartment (40) provided on the bottom of the shell (10), the inside of the battery compartment (40) being mounted with a battery (41), and the compartment opening of the battery compartment (40) being detachably mounted with a hatch (42).

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