Underground traffic light blocking signal process observation, diagnosis and quality evaluation method

Abstract

The invention relates to an underground traffic light blocking signal process observation, diagnosis and quality evaluation method. The method comprises the following steps: (1) detecting that a vehicle enters an intersection; (2) traffic light state acquisition and caching; (3) tracking a vehicle moving path; (4) traffic light locking state determination; (5) remotely observing data in the signal locking control base station; and (6) analyzing and diagnosing observation data and evaluating quality. By implementing the steps, real-time observation analysis and diagnosis evaluation of the underground traffic light blocking signal are realized, the blocking control quality of the traffic light can be effectively observed, and accurate direct quantitative data reference is provided for technical personnel to adjust design and guide field maintenance personnel to debug daily equipment and accurately search faults.

Description

Technical Field

[0001] The present invention relates to the field of underground mine traffic control, in particular to an underground traffic light locking signal process observation, diagnosis and quality assessment method, belonging to the field of mine automation and safety assurance technology. Background Art

[0002] In the complex traffic environment of underground mines, the locking signal of traffic lights plays a vital role in the safety of mine car driving and smooth traffic. However, the existing traffic light signal control system does not have a means of evaluating and detecting the quality of the locking signal, especially in the complex environment of multiple intersections in mines. Problems such as poor signal feedback timeliness, incorrect installation position of vehicle signal transmitters, or signal interference transmission data loss may lead to unsuccessful locking of safety signals. Therefore, designing a method that can effectively observe the state of underground traffic light locking signals and evaluate their quality is of great significance for evaluating the locking quality of vehicle traffic signals in mines and improving the safety and efficiency of the system. Summary of the invention

[0003] The present invention can observe the control logic process parameters and states of the underground control base station by designing a remote observer, perform statistical analysis on a variety of data, and provide direct quantitative data reference for parameter tuning and quality enhancement.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention provides a method for observing, diagnosing and evaluating the quality of a traffic light locking signal process in an underground mine, comprising the following steps:

[0006] (1) Vehicle entry intersection detection: When a vehicle drives to underground intersection B, the state observer collects the location information of the entering vehicle through the underground positioning system and records the unique identification code of the vehicle;

[0007] (2) Traffic light status collection and caching: The state observer communicates with each underground positioning base station through the Ethernet TCP protocol, and collects the status information of the traffic lights at the relevant intersections in real time at a fixed time period T. Traffic lights have multiple states, including red, green, yellow, yellow flashing, and fault states;

[0008] (3) Vehicle movement path tracking: When a vehicle moves from intersection B to the adjacent intersection A or intersection C, the state observer collects the vehicle's location information again and detects the timestamp of the vehicle information based on the cache;

[0009] (4) Traffic light locking state determination: by observing the traffic light state information with a timestamp in step (2), the traffic light state is compared with the traffic light state analyzed theoretically at the timestamp. If the two states are consistent, it is determined that the traffic light is locked successfully; if they are inconsistent, it is determined that the locking fails;

[0010] (5) Observe the internal data of the control base station or controller: The state observer reads the signal blocking control base station or controller data, including the operation algorithm parameters, the status of each service processing process and the continuous operation time;

[0011] (6) Observation data analysis, diagnosis and quality assessment. The state observer collects data in real time, analyzes statistics and records them. It can conduct long-term remote observation of the underground traffic light locking signals, count the number of traffic light locking times and the number of successful locking times over multiple days, and analyze the locking control effects of the control base station under different algorithms. Based on the observation results, it can count the number of underground vehicle locking times and the locking success rate on a daily, weekly and monthly basis, and perform locking diagnosis on all underground control base stations and vehicles, including the locking success rate of all underground signal control base stations and all underground vehicles. It can also guide on-site technicians to adjust algorithms and configuration parameters to improve the locking success rate.

[0012] Specifically, in step (1), the judgment criterion is that if the vehicle is detected within a distance of D centimeters from the intersection, the vehicle is judged to be valid at the intersection, wherein the parameter D is configurable.

[0013] Specifically, in step (3), the judgment criterion is that if the vehicle is detected within a distance of D centimeters from intersection A or C, then the vehicle is judged to be valid at the intersection, where parameter D is configurable.

[0014] Specifically, in step (3), the vehicle is detected and a timestamp Ta is obtained, and a new time Tb is obtained by subtracting ΔT from the timestamp, wherein the ΔT parameter can be set, and the traffic light status of the intersection A or B that the vehicle travels to at time Tb is obtained.

[0015] Specifically, in step (4), by comparing the traffic light status at Tb collected at the current position of the vehicle with the status of the theoretical traffic light, if the traffic light status at time Tb ΔT seconds before the time when the vehicle reaches the intersection and is detected by the control base station is red, it is normal locking and is determined to be locked successfully; if it is not red, it is abnormal and is determined to be locked failed.

[0016] The beneficial effect of the present invention is that by implementing the above steps, the present invention realizes real-time observation and analysis of the locking signal of the underground traffic light, can effectively observe the locking control quality of the traffic light, and provides accurate direct quantitative data reference for technical personnel to adjust the design and guide the on-site equipment according to the debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The up-going vehicle signal locking of the present invention;

[0018] Figure 2 The present invention is a downlink vehicle signal blocking;

[0019] Figure 3 The observer concurrently obtains the signal blocking base station information through Ethernet;

[0020] Figure 4 are the signal blocking quality and base station operating parameters observed by the observer;

[0021] Figure 5 is the signal locking quality in the vehicle dimension observed by the observer;

[0022] Figure 6 It is the quality result of signal locking under different algorithms statistically analyzed by the observer;

[0023] Figure 7 It is the comparison of traffic light locking quality data observed by the observer due to the impact of various signal locking algorithms. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] The present invention provides a method for observing, diagnosing and evaluating the quality of a traffic light locking signal process in an underground mine, comprising the following steps:

[0026] (1) Vehicle entry intersection detection: Figure 1 The vehicle is shown as driving from the left to the right (downward direction). When the vehicle is detected to be less than d1 cm away from the intersection A, for example, d1 is 500 cm (5 meters), the unique number of the vehicle is recorded. When the vehicle drives to the next intersection B, the vehicle is detected within d2 cm of the intersection and the vehicle number is recorded. Similarly, Figure 2 The vehicle is shown as traveling from the right side to the left side (upward direction). When the vehicle reaches each intersection, the observer records the vehicle information when it detects that the vehicle is within the set distance.

[0027] (2) Traffic light status collection and caching: Figure 3As shown, the state observer (host computer) communicates with each underground positioning control base station (signal locking base station) through the Ethernet TCP protocol. The sampling period T of the state observer is set to 1 second. Then the observer collects the state information of the traffic lights with timestamps at each intersection in the mine in real time at a frequency of once per second. For example, if the cache time is set to 10 minutes and one piece of data is recorded per second, a total of 600 (10×60) pieces of data are cached.

[0028] (3) Vehicle movement path tracking: When a vehicle travels from intersection B to the adjacent intersection A or intersection C, the state observer collects the status of the traffic lights at the intersection in real time with a period T of 1 second. When a vehicle is detected at the intersection, the timestamp of the detection of the vehicle is obtained, for example, 2024 / 9 / 10-15:30:35, that is, 15:30:35 on September 10, 2024.

[0029] (4) Locking state determination: By comparing the traffic light state Tb collected at the current position of the vehicle with the theoretical traffic light state, when the vehicle drives to the intersection and is detected by the control base station, for example, 2024 / 9 / 10-15:30:35, a new time Tb is obtained by subtracting ΔT (for example, setting this parameter to 5 seconds) from the timestamp. The new timestamp Tb is 2024 / 9 / 10-15:30:30. If the traffic light state is red at time Tb, it is normal locking and is determined to be locking successful. If it is not red, it is abnormal and is determined to be locking failure.

[0030] (5) Observe and control the internal data of the base station or controller: Figure 4 As shown, the observer can remotely read the internal data of the signal blocking control base station or controller, including the blocking times, blocking success rate, base station memory, business process, continuous working time, etc.

[0031] (6) Observation data analysis, diagnosis and quality assessment: The observer records statistics and analyzes data in real time, and saves and records the data, such as Figure 5 The following figure shows the analysis of vehicle locking data, including the number of successful locking and the failure rate. The state observer conducts long-term remote observation of the underground traffic light locking signal, and can count the number of traffic light locking and the number of successful locking in multiple days. The control base station has a built-in control logic algorithm. The observer can evaluate the application effect of the control base station under different algorithms, provide intuitive evaluation data, and provide quantitative data support for technicians to optimize and improve the design of the control base station. Figure 6 As shown; Based on the observation results, the number of underground base station locking times and the locking success rate under different base station algorithms can be counted every day, week, and month, as shown in Figure 7 shown.

[0032] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for observing, diagnosing and evaluating the quality of underground traffic light locking signal process, characterized in that: The steps include: (1) Vehicle entry detection: When a vehicle drives to a certain area of ​​the underground intersection, the state observer establishes an observation data connection channel with the control base station through the host computer software, collects the location information of the vehicle entering, and records the unique identification code of the vehicle entering the intersection; (2) Traffic light status collection and caching: The state observer communicates with the underground control base stations through the Ethernet TCP / IP protocol, collects the status information of the traffic lights at each intersection in real time in a regular cycle, and caches the data, providing a traffic light status data source with a timestamp for subsequent analysis and diagnosis; (3) Vehicle movement path tracking: The state observer can observe the vehicle information entering the intersection, which includes the intersection number, vehicle number and timestamp, and can track and record the vehicle's movement trajectory; (4) Traffic light locking state determination: by observing the traffic light state information with a timestamp in step (2), the traffic light state is compared with the traffic light state analyzed theoretically at the timestamp. If the two states are consistent, it is determined that the traffic light is locked successfully; if they are inconsistent, it is determined that the locking fails; (5) Observe and control the internal data of the base station or controller: The state observer reads the internal data of the signal blocking control base station, including the memory usage of the running equipment, the status of each business processing process and the continuous running time; (6) Analysis, diagnosis and evaluation of observation data: The state observer can analyze, count, diagnose and evaluate the collected data, conduct long-term remote observation of underground traffic locking signals, count the number of traffic light locking times and the number of successful locking times over multiple days, analyze the signal locking control quality when the control base station runs different algorithms, evaluate the control effect, and provide quantitative data support for technicians to improve the algorithm quality of the control base station operation and conduct diagnostic evaluation of the base station. Based on the observation results, the number of underground vehicle locking times and the locking success rate can be counted on a daily, weekly and monthly basis, and locking diagnosis can be performed on all underground control base stations and traffic lights.

2. The underground traffic light lock signal process observation, diagnosis and quality assessment method according to claim 1 is characterized by: In step (1), the judgment criterion is that if the vehicle is detected within a distance of D centimeters from the intersection, the vehicle is judged to be valid at the intersection, where the parameter D is configurable.

3. The method for observing, diagnosing and evaluating the quality of underground traffic light lock signal process according to claim 2, characterized in that: In step (3), the judgment criterion is that if the vehicle is detected within a distance of D centimeters from intersection A or C, the vehicle is judged to be valid at the intersection, where parameter D is configurable.

4. The method for observing, diagnosing and evaluating the quality of underground traffic light lock signal process according to claim 3 is characterized by: In step (3), the vehicle is detected and a timestamp Ta is obtained, and a new time Tb is obtained by subtracting ΔT from the timestamp, wherein the ΔT parameter can be set to obtain the traffic light status of the intersection A or B that the vehicle travels to at time Tb.

5. The underground traffic light lock signal process observation, diagnosis and quality assessment method according to claim 4 is characterized by: In step (4), the traffic light status at time Tb collected at the current position of the vehicle is compared with the status of the theoretical traffic light. If the traffic light status at time Tb ΔT seconds before the time when the vehicle reaches the intersection and is detected by the control base station is red, it is a normal lock and is determined to be locked successfully. If it is not a red light, it is abnormal and is determined to be locked failed.

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