Mechanical part falling object detection equipment based on RFID and grating

Abstract

The utility model relates to the technical field of vehicle mechanical part fallen object detection, in particular to mechanical part fallen object detection equipment based on RFID and a grating. An RFID patch is fixed on a mechanical part which is easy to fall off, information in the RFID patch is read through an RFID reader-writer, a missing RFID patch is accurately identified according to the read information, automatic detection of the falling mechanical part is realized, a light curtain parallel to the ground is constructed at the bottom of a vehicle through a grating module, and the mechanical part is automatically detected. When a part of mechanical parts without RFID patches fall off, the grating module can receive changing NPN signals so as to identify whether the mechanical parts fall off or not, and the grating module is combined with the RFID module to realize falling detection of various mechanical parts. The problems that at present, the ground where an operation vehicle passes is checked mainly in a manual mode, on one hand, labor is wasted, and on the other hand, omission is possibly generated are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle mechanical parts falling object detection technical field, concretely is a kind of mechanical parts falling object detection equipment based on RFID and grating. BACKGROUND

[0002] With the development of high-speed railway, it is necessary to carry out necessary maintenance along the railway, and at present, in the aspect of railway maintenance, large-scale road maintenance equipment such as work car is mainly used to maintain the steel rail, during the operation of the work car, it is found that some parts on the work car have the risk of falling during operation, and once the falling object falls on the steel rail, it may cause the train to derail when the train passes, affecting the train operation safety, but at present, the ground after the work car passes is mainly checked by artificial method, on the one hand, it is more wasteful of labor, on the other hand, the artificial checking method is unstable, and may miss due to not seeing. UTILITY MODEL CONTENT

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of mechanical parts falling object detection equipment based on RFID and grating, solve the current main artificial method to check the ground after the work car passes, on the one hand, it is more wasteful of labor, on the other hand, the problem of possible omission is solved.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of mechanical parts falling object detection equipment based on RFID and grating, the detection equipment includes:

[0006] RFID module, the RFID module includes the RFID read-write device arranged at the bottom of vehicle, and the radio frequency field of RFID read-write device is provided with several RFID patches fixed on the easily-fallen parts of vehicle;

[0007] Grating module, the grating module includes the transmitter for emitting infrared rays installed at the bottom of vehicle, and the receiver for forming the light curtain parallel to the ground is also installed at the bottom of vehicle and cooperates with the transmitter to receive infrared rays.

[0008] As preferred, the RFID patch is further provided with model label for identifying the model data of the corresponding easily-fallen part.

[0009] As preferred, the transmitter is provided with power button, and the receiver is provided with signal transmission module for transmitting signal to host computer.

[0010] As preferred, the RFID read-write device is provided with power switch for controlling on-off, and further includes knob switch for controlling electromagnetic wave generation, and radio frequency antenna interface for data transmission.

[0011] As preferred, the RFID reader-writer is further provided with an antenna expansion interface for data interaction with other RFID reader-writers.

[0012] Compared with the prior art, the mechanical component falling object detection device based on RFID and grating has the following beneficial effects:

[0013] 1. By arranging the RFID module, the RFID patch is fixed on the mechanical component prone to falling, and the information in the RFID patch is read through the RFID reader-writer, so that when the mechanical component falls, the missing RFID patch can be accurately identified according to the information read from the RFID patch, and the falling mechanical component can be identified, and the automatic detection of the falling mechanical component is realized.

[0014] 2. By arranging the grating module, the light curtain parallel to the ground is constructed at the bottom of the vehicle, so that when the mechanical component without fixed RFID patch falls, the grating module will receive the changed NPN signal, so as to identify whether the mechanical component falls, and in combination with the RFID module, the falling detection of various mechanical components on the vehicle is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the installation of the present application at the bottom of the vehicle;

[0017] Figure 2 It is a structural schematic diagram of the grating module of the present application;

[0018] Figure 3 It is a structural schematic diagram of the RFID patch of the present application;

[0019] Figure 4 It is a structural schematic diagram of the RFID reader-writer of the present application.

[0020] In the drawings: 1, RFID module; 11, RFID reader-writer; 12, RFID patch; 13, model label; 14, power switch; 15, knob switch; 16, radio frequency antenna interface; 17, antenna expansion interface; 2, grating module; 21, transmitter; 22, receiver; 23, power button; 24, signal transmission module. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0022] For the operation vehicle of the railway maintenance, in the case that some parts on the operation vehicle may fall during the operation, in order to solve the problem that the ground after the operation vehicle passes is mainly checked by manual mode, on the one hand, the manual mode is relatively wasteful, and on the other hand, the problem may be missed, the utility model provides a mechanical part falling object detection equipment based on RFID and grating, realizes the automatic detection of whether the mechanical part on the vehicle falls, so as to greatly save manpower and improve the reliability of detection, such as Figures 1-4 As shown in the figure, the detection equipment comprises:

[0023] The RFID module 1 composed of the RFID reader-writer 11 and the RFID patch 12, the RFID reader-writer 11 is arranged at the bottom of the vehicle, the RFID patch 12 is a plurality of and arranged in the radio frequency field of the RFID reader-writer 11 and fixed on the easily-fallen part of the vehicle, when the RFID patch 12 enters the radio frequency field of the RFID reader-writer 11, the RFID reader-writer 11 sends electromagnetic waves to the RFID patch 12, so that the patch generates excitation current, and the patch also sends out an electromagnetic wave, so as to be read and written by the RFID reader-writer 11, and then the patch information is transmitted to the vehicle-mounted computer through the radio frequency antenna, wherein it is worth noting that the RFID patch 12 obtains sufficient energy in the electromagnetic field generated by the RFID reader-writer 11 through the antenna, and the energy is converted into induced current as the power supply of the chip in the RFID patch 12, wherein the RFID patch 12 is pasted on the key part which is easy to fall, wherein the size of the RFID patch 12 can be 5X5X3cm, the size is small, and the pasting on the part does not affect the normal work of the operation vehicle, the RFID reader-writer 11 is used to monitor the part information in real time, the condition of the part is detected by detecting whether the information of the RFID patch 12 is lost or abnormal, when the part falls off or leaves the normal working position, an alarm is triggered, such as the information of the RFID patch 12 read by the RFID reader-writer 11 is processed, after the information filtering is completed, the information is compared with the total part database, after the comparison, the missing information indicates that the corresponding RFID patch 12 is lost, that is, the part falls off, at this time, an alarm can be sent;

[0024] The grating module 2 is composed of the transmitter 21 and the receiver 22, the transmitter 21 is installed on the bottom of the vehicle for emitting infrared rays, the receiver 22 is also installed on the bottom of the vehicle and cooperates with the transmitter 21 to receive infrared rays to form an optical curtain parallel to the ground, if there is a mechanical part falling, the optical curtain signal received by the receiver 22 is incomplete, the NPN signal transmitted by the receiver 22 changes, otherwise a constant NPN signal is sent, such as: the grating module 2 is connected with the single-chip microcomputer through a serial port and transmits the NPN signal, the single-chip microcomputer is connected with the industrial computer through a USB, and the converted signal is transmitted, if the return value is 0, it indicates that the grating module 2 detects the falling object, otherwise there is no falling object.

[0025] In order to facilitate detection of the presence of parts falling and determination whether it is a falling part after finding, the RFID patch 12 is further provided with a model label 13 for identifying the model data of the corresponding easily falling part, once the easily falling part is detected to fall, after the part falls, if the missing information detected by the RFID module 1 corresponds to the data of the model label 13 of the RFID patch 12 on the found easily falling part, it indicates that the lost part is found, otherwise it needs to continue to find.

[0026] In order to realize the switch control and signal transmission of the transmitter 21, the transmitter 21 is provided with a power button 23, the receiver 22 is provided with a signal transmission module 24 for transmitting signals to the upper computer, and the signal transmission module 24 can be a data transmission module such as Bluetooth.

[0027] In order to realize the power on-off and signal transmission of the RFID reader-writer 11, the RFID reader-writer 11 is provided with a power switch 14 for controlling the on-off of power, further comprising a knob switch 15 for controlling the generation of electromagnetic waves, and a radio frequency antenna interface 16 for data transmission.

[0028] Since the area of the bottom of some vehicles is large, sometimes the working area of one RFID reader-writer 11 cannot cover all the RFID patches 12 on the bottom of the vehicle, so multiple RFID reader-writers 11 need to be set up, in order to realize the data interaction between multiple RFID reader-writers 11, the RFID reader-writer 11 is further provided with an antenna expansion interface 17 for data interaction with other RFID reader-writers 11.

[0029] It should be noted that in this document, the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or device.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical part falling object detection device based on RFID and grating, characterized in that, The testing equipment includes: RFID module (1), the RFID module (1) includes an RFID reader (11) set at the bottom of the vehicle, and a number of RFID patches (12) fixed to easily dropped parts of the vehicle are set in the radio frequency field of the RFID reader (11). The grating module (2) includes a transmitter (21) installed on the bottom of the vehicle for emitting infrared rays, and a receiver (22) installed on the bottom of the vehicle to receive infrared rays in cooperation with the transmitter (21) to form a light curtain parallel to the ground.

2. The detection device according to claim 1, characterized in that, The RFID patch (12) is also provided with a model label (13) for identifying the model data of the corresponding easily dropped part.

3. The detection device according to claim 1, characterized in that, The transmitter (21) is equipped with a power button (23), and the receiver (22) is equipped with a signal transmission module (24) for transmitting signals to the host computer.

4. The detection device according to claim 1, characterized in that, The RFID reader (11) is equipped with a power switch (14) for controlling the power on and off, a rotary switch (15) for controlling the generation of electromagnetic waves, and a radio frequency antenna interface (16) for data transmission.

5. The detection device according to claim 1, characterized in that, The RFID reader (11) is also provided with an antenna extension interface (17) for data interaction with other RFID readers (11).

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