Full-automatic laser control system suitable for unattended tunnel detection

Abstract

The utility model discloses a tunnel detection full-automatic laser control system suitable for unattended operation, which relates to the technical field of railway detection equipment and comprises a two-dimensional imaging unit vertically fixed at the top of a detection vehicle and used for acquiring tunnel lining images; the distance measuring unit A and the distance measuring unit B are respectively mounted at the front end and the rear end of the detection vehicle; the comprehensive positioning processing module is used for judging the driving direction of the vehicle and dynamically selecting an effective distance measuring unit; the data processing host is used for receiving the distance measurement data and judging whether the detection vehicle enters the tunnel or not according to the distance measurement data; and the communication control module receives the judgment result output by the data processing host and outputs a laser switch control signal according to the judgment result. According to the utility model, the function of automatically turning on and turning off the laser in an unattended mode is realized, and the safety of stations and pedestrians is ensured on the premise of ensuring the acquisition imaging effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway detection equipment technical field, concretely relates to a tunnel detection full -automatic laser control system suitable for unattended. BACKGROUND

[0002] The statements in this section merely provide background information related to the present disclosure and can not constitute the prior art.

[0003] In order to guarantee that the tunnel detection equipment imaging effect is good, camera and laser configuration are usually constant brightness mode, but the tunnel detection equipment running in 25T detection car when passing through environments such as station area, high-power laser causes great hidden trouble to eye safety, even if the detection carrier vehicle is in static state, laser emission power is still equal to or higher than the danger level of CLASS3, which causes great safety hidden trouble to pedestrians and passengers. Therefore, in order to avoid the occurrence of the above situation, a tunnel detection full -automatic laser control system suitable for unattended is needed. SUMMARY

[0004] The utility model discloses to the purpose at: in view of the prior art problem, provide a tunnel detection full -automatic laser control system suitable for unattended, solve the laser constant brightness problem when two -dimensional imaging, realize the function that laser is automatically closed when the vehicle passes through non -tunnel area, and automatically opens in the tunnel.

[0005] The technical scheme of the utility model is as follows:

[0006] A tunnel detection full -automatic laser control system suitable for unattended, comprising:

[0007] Two -dimensional imaging unit, vertical fixed in the detection car top, is used to gather tunnel lining image;

[0008] Distance measuring unit A and distance measuring unit B are respectively installed in the front end and rear end of the detection car;

[0009] Comprehensive positioning processing module is used to judge the vehicle driving direction and dynamically select effective distance measuring unit;

[0010] Data processing host computer is used to receive distance measuring data, and whether the detection car enters the tunnel is judged through distance measuring data;

[0011] Communication control module receives the judgment result output by data processing host computer, and according to the judgment result, laser switch control signal is output.

[0012] Further, the distance measuring unit A and distance measuring unit B all contain two independent distance measuring modules;The installation angle of two distance measuring modules in distance measuring unit A and distance measuring unit B is all different.

[0013] Further, the two ranging modules of the ranging unit A or the ranging unit B are symmetrically distributed on both sides of the detection vehicle, and the installation angle can be adjusted.

[0014] Further, a support plate is fixedly installed on the detection vehicle; an adjustable baffle is installed on the support plate; a ranging module is fixedly installed on one end of the adjustable baffle, and the other end is rotationally connected with the support plate; the installation angle of the ranging module can be adjusted by rotating the adjustable baffle.

[0015] Further, the data processing host is configured to automatically disable the ranging unit B and enable the ranging unit A to collect data when the detection vehicle is driving forward, and automatically disable the ranging unit A and enable the ranging unit B to collect data when the detection vehicle is driving backward.

[0016] Further, the maximum detection distance of the ranging module is 300 meters, and the effective detection range is 120 meters to 250 meters when the vehicle speed is greater than or equal to 30 km / h.

[0017] Further, the judgment conditions for determining whether the detection vehicle enters the tunnel are as follows by using the ranging data:

[0018] (1) The data of the two ranging modules of the same ranging unit are both effective;

[0019] (2) The ranging data change time is within the range of 0.5 seconds to 1 second;

[0020] (3) The ranging data change amount is not more than 3 meters;

[0021] (4) The real-time speed of the detection vehicle is not less than 30 km / h;

[0022] If one of the above conditions is not met, it is determined that the detection vehicle does not enter the tunnel, otherwise it is determined that the detection vehicle enters the tunnel.

[0023] Further, a laser switch control signal is output according to the judgment result, including:

[0024] When it is determined that the detection vehicle does not enter the tunnel, the communication control module outputs a laser off command;

[0025] When it is determined that the detection vehicle enters the tunnel, the communication control module outputs a laser on command.

[0026] Further, the ranging module is a TOF laser radar.

[0027] Further, the communication control module is a 485 communication control module.

[0028] Compared with the existing technology, the beneficial effects of the utility model are:

[0029] The utility model discloses realize the function of automatic opening and closing laser under the unattended mode, guarantee the safety of station and pedestrian under the premise of guaranteeing the effect of gathering imaging. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a kind of full-automatic laser control system schematic diagram suitable for tunnel detection of unattended mode;

[0031] Figure 2 It is ranging unit structure schematic diagram;

[0032] Figure 3 It is the installation angle example drawing of ranging module;

[0033] Figure 4 It is full-automatic laser control system running flow chart suitable for tunnel detection of unattended mode;

[0034] Reference signs: 1-range unit A, 2-range unit B, 3-first ranging module, 4-first adjustable baffle, 5-supporting plate, 6-second adjustable baffle, 7-second ranging module. DETAILED DESCRIPTION

[0035] It should be noted that the relational terms, such as "first" and "second", and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that includes the recited element.

[0036] The features and performance of the utility model will be further described in detail in connection with the embodiments.

[0037] Embodiment one

[0038] Please refer to Figures 1-4 A kind of full-automatic laser control system suitable for tunnel detection of unattended mode, comprising:

[0039] Two-dimensional imaging unit is vertically fixed on the top of detection car, for gathering tunnel lining image;

[0040] The ranging unit A and the ranging unit B are respectively installed at the front end (i.e. the position of the vehicle head) and the rear end (i.e. the position of the vehicle tail) of the detection vehicle; and can normally work when the detection vehicle is running up or down;

[0041] The comprehensive positioning processing module is used for judging the running direction of the vehicle and dynamically selecting the effective ranging unit;

[0042] The data processing host is used for receiving the ranging data and judging whether the detection vehicle enters the tunnel according to the ranging data;

[0043] The communication control module receives the judgment result output by the data processing host and outputs the laser switch control signal according to the judgment result; it should be noted that the communication control module is a 485 system; that is, the processing result of the data processing host can send information to the 485 control system through the DB15 port on the side of the host, and the 485 system controls the on-off action of the camera laser.

[0044] In the embodiment, specifically, the ranging unit A and the ranging unit B each include two independent ranging modules; the installation angles of the two ranging modules in the ranging unit A and the ranging unit B are different, which avoids misjudgment and facilitates early detection of whether the front passes through the tunnel area.

[0045] In the embodiment, specifically, the two ranging modules of the ranging unit A or the ranging unit B are symmetrically distributed on both sides of the detection vehicle, and the installation angles can be adjusted.

[0046] In the embodiment, specifically, the detection vehicle is fixedly provided with a support plate; the support plate is provided with an adjustable baffle; one end of the adjustable baffle is fixedly provided with a ranging module, and the other end is rotationally connected with the support plate; the installation angle of the ranging module can be adjusted by rotating the adjustable baffle; it should be noted that the rotating installation mode is not limited, for example, through a bearing, a bolt connection, etc., which will not be described here; the system can be adapted to various environments by adjusting the angle, thereby improving the adaptability.

[0047] In the embodiment, specifically, the data processing host is configured to automatically disable the ranging unit B and enable the ranging unit A to collect data when the detection vehicle runs forward; and automatically disable the ranging unit A and enable the ranging unit B to collect data when the detection vehicle runs backward.

[0048] It should be noted that the comprehensive positioning processing module for judging the running direction of the vehicle can be realized by various technical solutions, for example: the comprehensive positioning processing module integrates a GPS positioning unit and an inertial navigation unit, which are used for real-time calculation of the running direction and speed of the vehicle, and transmit the direction signal to the data processing host.

[0049] In the embodiment, specifically, the maximum detection distance of the distance measuring module is 300 meters, and the effective detection range is 120-250 meters when the vehicle speed is greater than or equal to 30 km / h.

[0050] Further, the judgment condition for judging whether the detection vehicle enters the tunnel is determined by the distance measuring data as follows:

[0051] (1) The data of two distance measuring modules of the same distance measuring unit are both effective;

[0052] (2) The distance measuring data change time is within the range of 0.5-1 second;

[0053] (3) The distance measuring data change amount is not more than 3 meters;

[0054] (4) The real-time speed of the detection vehicle is not less than 30 km / h;

[0055] If one of the above conditions is not met, it is judged that the detection vehicle does not enter the tunnel, otherwise it is judged that the detection vehicle enters the tunnel.

[0056] In the embodiment, specifically, the laser switch control signal is output according to the judgment result, including:

[0057] When it is judged that the detection vehicle does not enter the tunnel, the communication control module outputs a laser-off command;

[0058] When it is judged that the detection vehicle enters the tunnel, the communication control module outputs a laser-on command.

[0059] In the embodiment, specifically, the distance measuring module is a TOF laser radar.

[0060] The above embodiment only expresses the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the technical concept of the present application, some modifications and improvements can be made, which are within the protection scope of the present application.

[0061] This background section is provided to generally present the context of the present application, the work of the current named inventors, the work described in this background section to the extent described in this background section, and the work described in this section at the time of filing, neither expressly nor implicitly, is recognized as prior art of the present application.

Claims

1. A fully automatic laser control system for unattended tunnel detection, characterized in that, The application relates to a tunnel lining detection system. The application comprises: a two-dimensional imaging unit fixed vertically on the top of a detection vehicle for collecting tunnel lining images; a ranging unit A and a ranging unit B respectively installed at the front end and the rear end of the detection vehicle; a comprehensive positioning processing module for judging the driving direction of the vehicle and dynamically selecting an effective ranging unit; a data processing host for receiving ranging data and judging whether the detection vehicle enters a tunnel through the ranging data; 2. The full-automatic laser control system for tunnel detection according to claim 1, characterized in that, a communication control module for receiving the judgment result output by the data processing host and outputting a laser switch control signal according to the judgment result.

3. The full-automatic laser control system for tunnel detection according to claim 2, characterized in that, The ranging unit A and the ranging unit B each comprise two independent ranging modules; the installation angles of the two ranging modules in the ranging unit A and the ranging unit B are different.

4. The full-automatic laser control system for tunnel detection according to claim 3, characterized in that, The two ranging modules of the ranging unit A or the ranging unit B are symmetrically distributed on both sides of the detection vehicle, and the installation angles can be adjusted.

5. The full-automatic laser control system for tunnel detection according to claim 4, characterized in that, A support plate is fixedly installed on the detection vehicle; an adjustable baffle is installed on the support plate; one end of the adjustable baffle is fixedly installed with a ranging module, and the other end is rotationally connected with the support plate; the installation angle of the ranging module can be adjusted by rotating the adjustable baffle.

6. The full-automatic laser control system for tunnel detection without attendance according to claim 2, characterized in that, The data processing host is configured to automatically disable the ranging unit B and enable the ranging unit A to collect data when the detection vehicle drives forward, and to automatically disable the ranging unit A and enable the ranging unit B to collect data when the detection vehicle drives reversely.

7. The fully automatic laser control system for tunnel detection suitable for unattended operation according to claim 2, characterized in that, The maximum detection distance of the ranging module is 300 meters, and the effective detection range is 120-250 meters when the vehicle speed is greater than or equal to 30 km / h. The judgment conditions for judging whether the detection vehicle enters a tunnel through ranging data are as follows: (1) the data of the two ranging modules of the same ranging unit are both effective; (2) the ranging data change time is within the range of 0.5-1 second; (3) the ranging data change amount is not more than 3 meters; (4) the real-time speed of the detection vehicle is not less than 30 km / h; 8. The fully automatic laser control system for tunnel detection suitable for unattended operation according to claim 7, characterized in that, If one of the above conditions is not met, it is judged that the detection vehicle does not enter a tunnel, otherwise it is judged that the detection vehicle enters a tunnel. The laser switch control signal is output according to the judgment result, which comprises: when it is judged that the detection vehicle does not enter a tunnel, the communication control module outputs a laser-off command; 9. The full-automatic laser control system for tunnel detection without attendance according to claim 2, characterized in that, when it is judged that the detection vehicle enters a tunnel, the communication control module outputs a laser-on command.

10. The fully automatic laser control system for unattended tunnel detection according to claim 1, characterized in that, The ranging module is a TOF laser radar. The communication control module is a 485 communication control module.

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