Intrinsically safe explosion-proof wireless UWB positioning base station

Abstract

The utility model relates to an intrinsically safe explosion-proof wireless UWB positioning base station, the base station is internally provided with a battery, a PCB and a UWB antenna, and the PCB is electrically connected with the battery and the UWB antenna respectively; the PCB is provided with an MCU, a self-detection module, a power input module and a reset module, wherein the self-detection module, the power input module and the reset module are electrically connected with the MCU. Compared with the prior art, the intrinsically safe explosion-proof base station adopts an intrinsically safe explosion-proof circuit design, is provided with the self-detection module and the reset module, can detect fault occurrence and automatically reset the base station, accords with national and industrial explosion-proof standards, has complete dustproof and underwater operation capabilities, is internally provided with a high-capacity lithium battery subjected to explosion-proof certification, and is convenient to use. The safety of the equipment in a high-risk scene is ensured, and the problem that the prior art is difficult to apply to a dangerous environment is solved.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology in hazardous environments, and in particular to a wireless UWB positioning base station with intrinsically safe explosion-proof design. Background Technology

[0002] Existing positioning technologies have numerous shortcomings and limitations in hazardous environments. Laser ranging and sonar detection technologies reflect light when encountering obstacles, making them unable to obtain accurate location information in complex environments. Wi-Fi positioning requires pre-measurement of signal strength distribution in indoor environments, and its positioning accuracy is only around 1 meter. Bluetooth positioning technology has limited applicability, and long-distance positioning requires the pre-deployment of numerous base stations. The most commonly used satellite navigation and positioning systems have a positioning accuracy of about 2-3 meters in indoor environments, which is insufficient to meet the demands of high-precision positioning.

[0003] Furthermore, existing technologies pose numerous safety hazards in hazardous environments. Some technologies require the deployment of numerous base station devices on-site, increasing maintenance costs and complexity. Certain technologies require clock synchronization via cable power supply or fiber optic lines, which are complex and costly to install. Most existing technologies fail to meet explosion-proof, dustproof, and waterproof requirements, making them unsuitable for use in hazardous operating environments such as petrochemical, coal mining, and power industries.

[0004] Therefore, there is an urgent need for a new type of positioning base station capable of achieving high-precision positioning, while meeting the requirements for explosion-proof, dustproof, and waterproof ratings in hazardous environments, and possessing the ability to operate stably for extended periods to reduce maintenance costs. This new base station needs to adopt a low-power design, coupled with a high-capacity battery, to achieve long-term operation without the need for battery replacement. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of existing technologies, such as difficulty in meeting explosion-proof requirements in hazardous environments, difficulty in installation and maintenance, and high power consumption, and to provide an intrinsically safe explosion-proof wireless UWB positioning base station.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An intrinsically safe explosion-proof wireless UWB positioning base station, the base station internally includes: a battery, a PCB board and a UWB antenna, the PCB board being electrically connected to the battery and the UWB antenna respectively;

[0008] The PCB board is equipped with an MCU and a self-test module, a power input module and a reset module that are electrically connected to the MCU.

[0009] As a preferred technical solution, the self-test module includes four pins: the first pin is connected to the power input, the second pin is connected to the MCU data signal pin, the third pin is connected to the MCU data transmission pin, and the fourth pin is grounded.

[0010] The first, second, and third channels of the self-test module are grounded via ESD diodes, specifically the PESD5V0S1BBN type.

[0011] As a preferred technical solution, the power input module includes a 6V / 1A fuse R10. One end of the fuse R10 is connected to the power input, and the other end of the fuse is connected to the power input pin of the MCU after passing through a pair of parallel capacitors C4 and a reverse-biased diode D2 to ground.

[0012] As a preferred technical solution, the input terminal of the reset module is connected to the power supply through a pull-up resistor R5, grounded through a capacitor C3, and connected to the reset pin signal of the MCU through a resistor R8.

[0013] As a preferred technical solution, the MCU is also electrically connected to an LED status display module, which includes two LEDs, each corresponding to a signal input. The two output pins of the MCU are respectively connected to the two input terminals of the LED status display module.

[0014] As a preferred technical solution, the outer shell of the positioning base station is made of flame-retardant ABS material.

[0015] As a preferred technical solution, the outer casing of the positioning base station is provided with multiple screw holes for installation and fixing.

[0016] As a preferred technical solution, the battery is an explosion-proof lithium battery.

[0017] As a preferred technical solution, the UWB antenna is an omnidirectional antenna.

[0018] As a preferred technical solution, the omnidirectional antenna is model C0100S0150M and operates at a frequency of 3.5-6.5GHz.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) This utility model adopts an intrinsically safe explosion-proof circuit design, and is equipped with a self-test module and a reset module, which can detect faults and automatically reset the base station. It complies with national and industry explosion-proof standards, ensuring the safety of the equipment in high-risk scenarios and solving the problem that existing technologies are difficult to apply to hazardous environments;

[0021] 2) The outer shell of this utility model is made of high-strength material, which has complete dustproof and underwater operation capabilities, and can adapt to harsh environments such as high humidity, high dust and corrosive gases, ensuring the long-term stable operation of the equipment;

[0022] 3) Built-in explosion-proof certified high-capacity lithium battery with a battery life of more than 5 years, significantly reducing the maintenance cost of frequent battery replacements and solving the problem that existing technologies cannot operate stably for a long time;

[0023] 4) The product supports battery replacement, which further extends the service life of the equipment and reduces maintenance costs. Attached Figure Description

[0024] Figure 1 This is a main schematic diagram of the intrinsically safe explosion-proof wireless UWB positioning base station of this utility model;

[0025] Figure 2 This is a side view of the intrinsically safe explosion-proof wireless UWB positioning base station of this utility model;

[0026] Figure 3 The circuit diagram of the intrinsically safe explosion-proof wireless UWB positioning base station of this utility model is shown below.

[0027] Figure 4 This is a circuit diagram of the self-testing module for the wireless UWB positioning base station of this utility model.

[0028] Figure 5 This is a circuit diagram of the power input module for the wireless UWB positioning base station of this utility model.

[0029] Figure 6 This is a circuit diagram of the wireless UWB positioning base station reset module of this utility model;

[0030] The numbers in the diagram indicate: 1. Battery, 2. PCB board, 3. UWB antenna. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Example 1

[0035] like Figure 1 As shown, the base station is mainly divided into three parts: the upper part is the battery 1, the middle part is the PCB board 2 fixed to the outer casing, which contains the main control MCU, UWB base station module and other electronic components, and the bottom part is the UWB antenna 3 area, which is connected to the fixing parts on the PCB board 2. Antenna 3 is an omnidirectional antenna, model C0100S0150M, with an operating frequency of 3.5-6.5GHz, covering the operating frequency of the UWB module.

[0036] Battery 1 is an explosion-proof lithium battery with a capacity of 8000mAh. The base station employs a low-power design, and combined with the large-capacity battery, its battery life exceeds 4 years, significantly reducing the maintenance costs associated with frequent battery replacements. The battery is replaceable, further extending the equipment's lifespan.

[0037] like Figure 2 As shown, the UWB base station in this embodiment measures 160×113×46mm, and its overall casing is made of flame-retardant ABS material. The base station has eight screw holes on its bottom for securing it and maintaining a tight seal. Furthermore, the base station adopts an IP68 protection rating, meeting the requirements for outdoor use.

[0038] like Figure 3 As shown, the UWB positioning circuit on the PCB board 2 of the present invention includes an MCU and a self-test module, a power input module and a reset module connected to the MCU.

[0039] like Figure 4 As shown, the self-test module includes four pins: the first pin is connected to the power input, the second pin is connected to the MCU data signal pin, the third pin is connected to the MCU data transmission pin, and the fourth pin is grounded. The first, second, and third pins of the self-test module are grounded via ESD diodes. The specific model of the ESD diode is PESD5V0S1BBN.

[0040] like Figure 5 As shown, the power input module includes a 6V / 1A fuse, model SMD0805B050TF. One end of the fuse is connected to the power input, and the other end is connected to the MCU power input pin. It is connected to ground via a pair of parallel capacitors C4 (model BZT52C5V1) and a reverse-biased diode D2 (model SOD-123_ZENER).

[0041] like Figure 6As shown, the input terminal of the reset module is connected to the input power supply VBAT through a 1K10K pull-up resistor, grounded through a 100nF / 6.3V capacitor C3, and connected to the reset signal pin of the MCU through a 1K resistor R8.

[0042] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An intrinsically safe explosion-proof wireless UWB positioning base station, characterized in that, The base station is internally configured with: a battery (1), a PCB board (2) and a UWB antenna (3), wherein the PCB board (2) is electrically connected to the battery (1) and the UWB antenna (3) respectively; The PCB board (2) is equipped with an MCU and a self-test module, a power input module and a reset module that are electrically connected to the MCU.

2. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The self-test module includes four pins: the first pin is connected to the power input, the second pin is connected to the MCU data signal pin, the third pin is connected to the MCU data transmission pin, and the fourth pin is grounded. The first, second, and third channels of the self-test module are grounded via ESD diodes, specifically the PESD5V0S1BBN type.

3. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The power input module includes a 6V / 1A fuse R10. One end of the fuse R10 is connected to the power input, and the other end of the fuse is connected to the power input pin of the MCU after passing through a pair of parallel capacitors C4 and a reverse diode D2 to ground.

4. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The input terminal of the reset module is connected to the power supply through pull-up resistor R5, grounded through capacitor C3, and connected to the reset pin signal of the MCU through resistor R8.

5. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The MCU is also electrically connected to an LED status display module, which includes two LEDs, each corresponding to a signal input. The two output pins of the MCU are respectively connected to the two input terminals of the LED status display module.

6. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The outer shell of the positioning base station is made of flame-retardant ABS material.

7. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The outer casing of the positioning base station is provided with multiple screw holes for installation and fixing.

8. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The battery (1) is an explosion-proof lithium battery.

9. The intrinsically safe explosion-proof wireless UWB positioning base station according to claim 1, characterized in that, The UWB antenna (3) is an omnidirectional antenna.

10. An intrinsically safe explosion-proof wireless UWB positioning base station according to claim 9, characterized in that, The omnidirectional antenna is model C0100S0150M and operates at a frequency of 3.5-6.5GHz.

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