High-precision laser ranging sensing system
By combining a high-precision laser transmitter with a LoRa communication module, the problems of low monitoring efficiency and insufficient accuracy of traditional laser ranging sensors are solved, realizing efficient and accurate laser ranging and long-distance communication, reducing manpower input and improving monitoring efficiency.
Patent Information
- Application Number
- CN202423313932.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional laser rangefinders require a large amount of manpower for monitoring, resulting in high labor intensity, low monitoring efficiency, and existing equipment is unable to achieve high-precision and long-distance measurements.
It employs a high-precision laser transmitter, receiver, data processing system, and LoRa wireless communication module, combined with an STM32 microcontroller for data acquisition and transmission, enabling flexible adjustment of the laser beam and high-precision ranging. The LoRa module provides long-distance communication and low power consumption.
It achieves rapid and high-precision distance measurement, and is a laser ranging sensing system with long-distance communication capability and long lifespan. It can promptly alarm abnormal situations, reduce manpower requirements and improve monitoring efficiency.
Smart Images
Figure CN223926619U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated building equipment, and specifically relates to a high-precision laser ranging sensing system. Background Technology
[0002] Laser rangefinders are commonly used monitoring devices in traffic facilities such as roads, highways, and bridges. They continuously monitor displacement changes to protect pedestrian and vehicle safety and reduce traffic accidents and injuries. They also offer advantages such as affordability and ease of installation, leading to their widespread application and promotion. Traditional monitoring processes require significant manpower, resulting in high labor intensity and low monitoring efficiency. With the development of distance measurement technology, laser rangefinders are widely used in various industries. Designing a laser rangefinder sensor and a device to improve monitoring accuracy has become a pressing engineering problem in this industry. Summary of the Invention
[0003] The purpose of this invention is to provide a laser ranging sensor that emits a laser through a laser emitting device, passes through the monitored object and returns, is received by a laser receiving device, and then performs data analysis and processing through a data processing system before finally transmitting the data to the receiving device.
[0004] The above-mentioned objective of this utility model is achieved through the following technical solution:
[0005] A high-precision laser ranging sensing system includes a laser emitting device, a laser receiving device, a data processing system, and a receiving device.
[0006] The laser emitting device includes a laser emitter, a driver, and a prism. The laser emitting device is fixed to the ground. The laser emitter is the core component of the device and is connected to the driver. Compared to traditional laser emitters, this emitter has a flexible beam direction to adapt to monitoring requirements at different angles, a small divergence angle, and good directionality, ensuring that energy is accurately applied to the target, resulting in higher precision. The driver generates current pulses to drive the laser emitter, ensuring stable and reliable operation. The prism is placed in the path of the laser emitted by the emitter and is used to change the shape and direction of the laser beam. Through the precise cooperation between the laser emitter and the prism, laser beam focusing is achieved.
[0007] The laser receiving device includes a photosensitive element and a signal amplifier. The laser receiving device is mainly used to receive laser beams reflected from a target object. The photosensitive element mainly consists of a photodiode, which converts the received optical signal into an electrical signal. The signal amplifier can effectively improve the signal amplitude and signal-to-noise ratio, facilitating subsequent signal processing.
[0008] The data processing system includes an STM32 microcontroller and a communication module. The STM32 microcontroller is a high-performance, low-power microcontroller and microprocessor primarily used for data acquisition. The communication module is mainly a LoRa wireless communication module. Compared to traditional wireless communication modules, LoRa offers long-distance communication capabilities, with transmission distances reaching several kilometers or even tens of kilometers. Its low power consumption provides extended battery life in applications with limited power supply. Furthermore, it boasts strong anti-interference capabilities, maintaining stable communication quality even in highly interference environments, ensuring reliable data transmission.
[0009] The receiving device is a mobile terminal, which is mainly used to facilitate the observation of real-time changes in data. When the monitored data is abnormal or reaches a preset threshold, the mobile application can immediately send alarm or warning information to the user, ensuring that the user can understand and respond to the abnormal situation as soon as possible.
[0010] Compared with the prior art, the outstanding advantages of this utility model are:
[0011] 1. This utility model discloses a high-precision laser ranging sensing system that, through the cooperation of a laser emitting device and a laser receiving device, can quickly calculate the distance between the sensor and the object being measured, and has long-distance measurement capability and high precision.
[0012] 2. The high-precision laser ranging sensing system of this utility model adopts a LoRa wireless communication module, which has long-distance communication capability and low power consumption characteristics, thus giving it a longer lifespan. Attached Figure Description
[0013] Figure 1 This is one of the flowcharts for a high-precision laser ranging sensing system.
[0014] Figure 2 This is the second flowchart of a high-precision laser ranging sensing system. Detailed Implementation
[0015] The following is through the appendix Figure 1 To be continued Figure 2 The technical solution of this utility model will be further explained by the embodiments.
[0016] Comparison Figure 1 , Figure 2 The laser ranging sensor and calculation method include a laser emitting device, a laser receiving device, a data processing system, and a receiving device.
[0017] A1. The laser emitting device includes a laser emitter 1, a driver, and a prism. The laser emitting device is fixed to the ground. The laser emitter 1 is the core component of the laser emitting device, connected to the driver, and is mainly used to emit a laser beam. It can emit laser beams of different wavelengths and pulse widths according to application requirements. Compared with traditional laser emitters, the beam direction can be flexibly adjusted to adapt to monitoring requirements at different angles. The laser beam has a small divergence angle and good directionality, ensuring that the energy is accurately applied to the target, resulting in higher precision. The driver is responsible for generating current pulses to drive the laser emitter, ensuring that the laser emitter can work stably and reliably. The prism is placed in the path of the laser emitted by the laser emitter. The prism is used to change the shape and direction of the laser beam. Through the precise cooperation of the laser emitter and the prism, the focusing of the laser beam is achieved.
[0018] A2. The laser receiving device includes a photosensitive element 2 and a signal amplifier. The laser receiving device is mainly used to receive laser beams reflected from a target object. The photosensitive element 2 is mainly composed of a photodiode, which converts the received optical signal into an electrical signal. The signal amplifier can effectively improve the signal amplitude and signal-to-noise ratio, facilitating subsequent signal processing.
[0019] A3. The data processing system includes an STM32 microcontroller 3 and a communication module 4. The STM32 microcontroller 3 is a high-performance, low-power microcontroller and microprocessor, mainly used for data acquisition. It calculates the distance s between the sensor and the measured object by taking half the time t required for the laser beam to travel back and forth, based on the speed of light c. The communication module 4 is mainly a LoRa wireless communication module. Compared with traditional wireless communication modules, LoRa has long-distance communication capabilities, with transmission distances reaching several kilometers or even tens of kilometers. Its low power consumption allows for long battery life in applications with limited power supply. It also has strong anti-interference capabilities; even in highly interference environments, the LoRa module can maintain stable communication quality, ensuring reliable data transmission.
[0020] A4. The receiving device is a mobile terminal 5, which is mainly used to facilitate the observation of real-time changes in data. When the monitored data is abnormal or reaches a preset threshold, the mobile application can immediately send alarm or warning information to the user to ensure that the user can understand and respond to the abnormal situation as soon as possible.
Claims
1. A high-precision laser ranging sensing system, comprising a laser emitting device, a laser receiving device, a data processing system, and a receiving device, characterized in that: The laser emitting device includes a laser emitter, a driver, and a prism; the laser emitting device is fixed on the ground; the laser emitter is the core part of the laser emitting device, connected to the driver, and is used to emit a laser beam; the driver is responsible for generating current pulses to drive the laser emitter; the prism is placed in the path of the laser emitted by the laser emitter, and the prism is used to change the shape and direction of the laser beam.
2. The high-precision laser ranging sensing system according to claim 1, characterized in that: The laser receiving device includes a photosensitive element and a signal amplifier; the laser receiving device is used to receive a laser beam reflected from a target object; the photosensitive element is mainly composed of a photodiode, which converts the received optical signal into an electrical signal; the signal amplifier is used to improve the amplitude and signal-to-noise ratio of the signal.
3. The high-precision laser ranging sensing system according to claim 1, characterized in that: The data processing system includes an STM32 microcontroller and a communication module; the STM32 microcontroller is used for data acquisition; the communication module adopts a LoRa wireless communication module.
4. The high-precision laser ranging sensing system according to claim 1, characterized in that: The receiving device is a mobile terminal used to observe real-time changes in data.